Display Reviews - DXOMARK https://www.dxomark.com/category/display-reviews/ The leading source of independent audio, display, battery and image quality measurements and ratings for smartphone, camera, lens, wireless speaker and laptop since 2008. Thu, 13 Jun 2024 15:01:07 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.3 https://www.dxomark.com/wp-content/uploads/2019/09/logo-o-transparent-150x150.png Display Reviews - DXOMARK https://www.dxomark.com/category/display-reviews/ 32 32 Crosscall Stellar-X5 Display test https://www.dxomark.com/crosscall-stellar-x5-display-test/ https://www.dxomark.com/crosscall-stellar-x5-display-test/#respond Tue, 04 Jun 2024 12:30:13 +0000 https://www.dxomark.com/?p=172786&preview=true&preview_id=172786 We put the Crosscall Stellar-X5 through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications 6.5 inches LCD IPS Dimensions: 172.4 x 80.1 x 11.9 mm [...]

The post Crosscall Stellar-X5 Display test appeared first on DXOMARK.

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We put the Crosscall Stellar-X5 through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications

  • 6.5 inches LCD IPS
  • Dimensions: 172.4 x 80.1 x 11.9 mm (6.79 x 3.15 x 0.47 inches)
  • Resolution: 1080 x 2400 pixels, (~405 ppi density)
  • Aspect ratio: 20:9
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Crosscall Stellar-X5
109
display
106

164

111

165

103

163

138

164

Pros

  • No frame drops when watching video
  • Accurate screen interactions, with quick reaction to touch
  • No screen flicker

Cons

  • Poor readability in indoor and outdoor conditions
  • Minimum luminance is too high in a low-light condition
  • Dark tones are not visible when watching HDR10 video
  • Brightness drops quickly when viewing the screen at an angle

The Crosscall Stellar-X5’s screen provided a very uneven performance in our Display protocol, with a screen experience that was affected by a pinkish cast in all conditions.

Although the Stellar-X5’s display luminance and contrast levels were able to match most ultra-premium phones in indoor conditions, the device’s display was still difficult to read, especially in bright outdoor environments. In complete darkness, the screen’s luminance remained much too bright to offer a comfortable viewing experience.

Watching HDR10 video was also a mixed experience. Although there were no frame drops, it was sometimes hard to make out the dark tones in the video content due to the lack of brightness.

Otherwise, the Crosscall Stellar-X5’s liquid crystal display was basically free of any flicker, a phenomenon that is more likely to occur in OLED displays, which are typically found on other ultra-premium phone displays.

Although intended touch interactions on the display were often fast and accurate, the display did frequently execute unwanted touches.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

106

Crosscall Stellar-X5

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.


Skin-tone rendering in an indoor (1000 lux) environment
From left to right: Crosscall Stellar-X5, Fairphone 4, Poco F4 GT, Samsung Galaxy A55 5G
(Photos for illustration only)


Skin-tone rendering in a sunlight (>90 000 lux) environment
From left to right: Crosscall Stellar-X5, Fairphone 4, Poco F4 GT, Samsung Galaxy A55 5G
(Photos for illustration only)
Average Reflectance (SCI) Crosscall Stellar-X5
4.8 %
Low
Good
Bad
High
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).

Uniformity
This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Crosscall Stellar-X5
No flicker
Bad
Good
Bad
Great
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

111

Crosscall Stellar-X5

165

Google Pixel 8
How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux
This graph shows the white point coordinates for the image pattern using the default or the faithful mode. D65 illuminant (6500 Kelvin) is a standard that defines the color of white at midday; it is used for display calibration as a white reference, therefore devices are expected to be at or close to the D65 white point.
Color fidelity
Each arrow represents the color difference between a target color pattern (base of the arrow) and its actual measurement (tip of the arrow). The longer the arrow, the more visible the color difference is. If the arrow stays within the circle, the color difference will be visible only to trained eyes. The tested color mode is the most faithful proposed by each device, and a color correction is applied to account for the different white points of each device.
White color shift with angle
This graph shows the color shift when the screen is at an angle. Each dot represents a measurement at a particular angle. Dots inside the inner circle exhibit no color shift in angle; those between the inner and outer circle have shifts that only trained experts will see; but those falling outside the outer circle are noticeable.
Circadian Action Factor Crosscall Stellar-X5
0.34
Good
Good
Bad
Bad
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
The circadian action factor is a metric that defines how light impacts the human sleep cycle. It is the ratio of the light energy contributing to sleep disturbances (centered around 450 nm, representing blue light) over the light energy contributing to our perception (covering 400 nm to 700 nm and centered on 550 nm, which is green light). A high circadian action factor means that the ambient light contains strong blue-light energy and is likely to affect the body’s sleep cycle, while a low circadian action factor implies the light has weak blue-light energy and is less likely to affect sleeping patterns.
Spectrum of white emission with Night mode ON
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.
Spectrum of white emission with Night mode OFF
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.

Video

103

Crosscall Stellar-X5

163

Samsung Galaxy S23
How Display Video score is composed

The video attribute evaluates the Standard Dynamic Range (SDR) and High Dynamic Range (HDR10) video handling in indoor and low-light conditions . Our measurements run in the labs are completed by perceptual testing and analysis.

Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.


Video rendering in a low-light (0 lux) environment
Clockwise from top left: Crosscall Stellar-X5, Fairphone 4, Poco F4 GT, Samsung Galaxy A55 5G
(Photos for illustration only)

SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
Gamut coverage for video content under 0 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
Gamut coverage for video content under 830 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
SDR Video Frame Drops FHD at 30 fps
0 %
Few
Good
Bad
Many
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
SDR Video Frame Drops UHD at 30 fps
1.2 %
Few
Good
Bad
Many
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
These gauges present the percentage of frame irregularities in a 30-second video. These irregularities are not necessarily perceived by users (unless they are all located at the same time stamp) but are an indicator of performance.

Touch

138

Crosscall Stellar-X5

164

Google Pixel 7 Pro
How Display Touch score is composed

We evaluate the touch attributes under many types of contents where touch is key, and requires different behaviors such as gaming (quick touch to response time), web (smooth scrolling of the page) and images (accurate and smooth navigation from one image to another).

Average Touch Response Time Crosscall Stellar-X5
80 ms
Fast
Good
Bad
Slow
Crosscall Stellar-X5
Fairphone 5
Xiaomi Redmi Note 13 Pro Plus 5G
Samsung Galaxy A55 5G
Touch To Display response time
This response time test precisely evaluates the time elapsed between a single touch of the robot on the screen and the displayed action. This test is applied to activities that require high reactivity, such as gaming.

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https://www.dxomark.com/crosscall-stellar-x5-display-test/feed/ 0 DISPLAY DISPLAY Crosscall_Stellar-X5_readability_skintone_indoor Crosscall_Stellar-X5_readability_skintone_sunlight Crosscall_Stellar-X5_readability_uniformity Crosscall_Stellar-X5_video_lowlight
Honor 200 Pro Display test https://www.dxomark.com/honor-200-pro-display-test/ https://www.dxomark.com/honor-200-pro-display-test/#respond Mon, 27 May 2024 16:23:58 +0000 https://www.dxomark.com/?p=173224&preview=true&preview_id=173224 We put the Honor 200 Pro through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications 6.8 inches OLED Dimensions 63.3x 75.2 mm x8.2 mm Resolution: [...]

The post Honor 200 Pro Display test appeared first on DXOMARK.

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We put the Honor 200 Pro through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications

  • 6.8 inches OLED
  • Dimensions 63.3x 75.2 mm x8.2 mm
  • Resolution: FHD+ 2700×1224 pixels
  • Refresh rate: 120 Hz
  • Aspect ratio:~20:9

Scoring

Sub-scores and attributes included in the calculations of the global score.

Honor 200 Pro Honor 200 Pro
151
display
145

164

165

Best

146

163

158

164

Eye Comfort Label & Attributes

Eye Comfort
<10%
Flicker perception probability
% of population
1.79
Minimum Brightness
in nits
0.65
Circadian Action Factor
 
95%
Color
Consistency
vs Display-P3 color space

Pros

  • Good color accuracy in all tested lighting conditions
  • Good HDR10 video rendering in low-light conditions
  • Excellent touch-to-display response time

Cons

  • Lack of smoothness when browsing the web
  • Lack of luminance for video content in indoor conditions
  • Many frame mismatches, especially for 60 fps content
  • Low peak luminance in challenging environments

The Honor 200 Pro’s display showed a strong performance in our Display protocol, supported by achieving a top score in color and an excellent showing in touch.

The Honor 200 Pro’s flicker-free screen provided a well-adapted brightness in low light and in indoor conditions. However, the display’s readability was heavily challenged in outdoor lighting, and the device couldn’t quite match the luminance and contrast levels of its competitors.

Color performance was by far the display’s strongest aspect. The device’s colors, tested in the faithful mode were accurate throughout. This, along with color uniformity, earned the device the highest score in this attribute. Despite a slight green color shift when viewed from an angle, the screen managed to maintain its color accuracy.

Touch performance was highlighted by a very fast and accurate average response time of 56 ms. In addition, the device showed no evidence of reacting to any unintended touches. However, there was a little lack of smoothness when scrolling the web and when viewing the gallery app.

Video performance was overall good, but results were held back mainly because of the many frame mismatches that were visible, especially on content displayed at 60 frames per second. The device’s screen luminance of different videos was generally low when watching in indoor conditions.

The Honor 200 Pro’s lack of flicker, well-controlled luminance as well as its color consistency and effective blue light filtering also earned it DXOMARK’s Eye Comfort label, distinguishing it as a device that is visually comfortable to use in low light.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

145

Honor 200 Pro

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.
Skin-tone rendering in an outdoor (50 000 lux) environment
From left: Honor 200 Pro, Samsung Galaxy S24, Google Pixel 8
(Photos for illustration only)

Average Reflectance (SCI) Honor 200 Pro
4.8 %
Low
Good
Bad
High
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).
Uniformity

This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Honor 200 Pro
No flicker
Bad
Good
Bad
Great
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

165

Honor 200 Pro

Best

How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux
This graph shows the white point coordinates for the image pattern using the default or the faithful mode. D65 illuminant (6500 Kelvin) is a standard that defines the color of white at midday; it is used for display calibration as a white reference, therefore devices are expected to be at or close to the D65 white point.
Color fidelity
Each arrow represents the color difference between a target color pattern (base of the arrow) and its actual measurement (tip of the arrow). The longer the arrow, the more visible the color difference is. If the arrow stays within the circle, the color difference will be visible only to trained eyes. The tested color mode is the most faithful proposed by each device, and a color correction is applied to account for the different white points of each device.
White color shift with angle
This graph shows the color shift when the screen is at an angle. Each dot represents a measurement at a particular angle. Dots inside the inner circle exhibit no color shift in angle; those between the inner and outer circle have shifts that only trained experts will see; but those falling outside the outer circle are noticeable.
Circadian Action Factor Honor 200 Pro
0.65
Good
Good
Bad
Bad
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
The circadian action factor is a metric that defines how light impacts the human sleep cycle. It is the ratio of the light energy contributing to sleep disturbances (centered around 450 nm, representing blue light) over the light energy contributing to our perception (covering 400 nm to 700 nm and centered on 550 nm, which is green light). A high circadian action factor means that the ambient light contains strong blue-light energy and is likely to affect the body’s sleep cycle, while a low circadian action factor implies the light has weak blue-light energy and is less likely to affect sleeping patterns.
Spectrum of white emission with Night mode ON
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.
Spectrum of white emission with Night mode OFF
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.

Video

146

Honor 200 Pro

163

Samsung Galaxy S23
How Display Video score is composed

The video attribute evaluates the Standard Dynamic Range (SDR) and High Dynamic Range (HDR10) video handling in indoor and low-light conditions . Our measurements run in the labs are completed by perceptual testing and analysis.

Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.

SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
Gamut coverage for video content under 0 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
Gamut coverage for video content under 830 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
SDR Video Frame Drops FHD at 30 fps
8.4 %
Few
Good
Bad
Many
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
SDR Video Frame Drops UHD at 30 fps
27.2 %
Few
Good
Bad
Many
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
These gauges present the percentage of frame irregularities in a 30-second video. These irregularities are not necessarily perceived by users (unless they are all located at the same time stamp) but are an indicator of performance.

Touch

158

Honor 200 Pro

164

Google Pixel 7 Pro
How Display Touch score is composed

We evaluate the touch attributes under many types of contents where touch is key, and requires different behaviors such as gaming (quick touch to response time), web (smooth scrolling of the page) and images (accurate and smooth navigation from one image to another).

Average Touch Response Time Honor 200 Pro
56 ms
Fast
Good
Bad
Slow
Honor 200 Pro
Samsung Galaxy S24
Google Pixel 8
Touch To Display response time
This response time test precisely evaluates the time elapsed between a single touch of the robot on the screen and the displayed action. This test is applied to activities that require high reactivity, such as gaming.

The post Honor 200 Pro Display test appeared first on DXOMARK.

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https://www.dxomark.com/honor-200-pro-display-test/feed/ 0 Honor 200 Pro Best Eye Comfort DISPLAY DISPLAY Honor_200_Pro_readability_skintone_sunlight Luminance_Map_Gray_20_Portrait_Normalized Best
Oppo Find X7 Ultra Display test https://www.dxomark.com/oppo-find-x7-ultra-display-test/ https://www.dxomark.com/oppo-find-x7-ultra-display-test/#respond Fri, 17 May 2024 15:10:48 +0000 https://www.dxomark.com/?p=172724&preview=true&preview_id=172724 We put the Oppo Find X7 Ultra through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications 6.82 inches LTPO AMOLED Dimensions: 164.3 x 76.2 x [...]

The post Oppo Find X7 Ultra Display test appeared first on DXOMARK.

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We put the Oppo Find X7 Ultra through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications

  • 6.82 inches LTPO AMOLED
  • Dimensions: 164.3 x 76.2 x 9.5 mm (6.47 x 3.00 x 0.37 inches)
  • Resolution: 1440 x 3168 pixels, (~510 ppi density)
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Oppo Find X7 Ultra Oppo Find X7 Ultra
144
display
150

164

164

165

120

163

161

164

Eye Comfort Label & Attributes

Eye Comfort
<10%
Flicker perception probability
% of population
1.57
Minimum Brightness
in nits
0.63
Circadian Action Factor
 
99%
Color
Consistency
vs Display-P3 color space

Pros

  • Good color rendering in every lighting condition
  • Well-managed brightness levels in every use case
  • Smooth display in all use cases

Cons

  • Lack of brightness when watching HDR10 videos
  • Lack of contrast when watching HDR10 videos

The Oppo Find X7 Ultra’s display overall score was supported by the device’s strong results in the color and touch attributes, which helped to counter a middling video score.  The device showed good color rendering in every use case tested, and the device’s screen smoothness was evident in all the use cases.

Oppo’s latest flagship made a slight improvement over previous Oppo models, despite the screen’s slightly low brightness. However, screen brightness in sunlight was close in performance to other ultra-premium devices.

The lack of brightness affected the video-watching experience, making it uncomfortable to watch HDR10 content  because dark tones were hard to see. As a result, it will be necessary for most users to adjust  the device luminance manually.

The OPPO Find X7 Ultra is the first device to receive the DXOMARK Eye Comfort Label after having passed all four key criteria: temporal light modulation, brightness level, blue light filtering, and color consistency.

Our measurements showed that the device was essentially free of flicker, with a 10% chance of the user perceiving any brightness abnormalities. Manual adjustment of the display luminance can go as low as 1.5 nits, which is low enough even for the most sensitive eyes under dark room conditions. Our testers particularly appreciated the blue-light filtering performance in the device’s “Bedtime Mode,” which efficiently, and continuously, adapted the blue-light filtering to the time of day. The device’s circadian action factor, which indicates the level of disturbance induced by artificial lighting on human sleep cycle, reached an impressive 0.63, below DXOMARK’s already challenging recommended maximum threshold of 0.65. And when it came to color accuracy, the device was able to maintain almost all of its P3 color gamut with the blue-light filter mode activated.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

150

Oppo Find X7 Ultra

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.


Skin-tone rendering in an indoor (1000 lux) environment
From left to right: Oppo Find X7 Ultra, Samsung Galaxy S24 Ultra, Apple iPhone 15 Pro Max
(Photos for illustration only)


Skin-tone rendering in a sunlight (>90 000 lux) environment
From left to right: Oppo Find X7 Ultra, Samsung Galaxy S24 Ultra, Apple iPhone 15 Pro Max
(Photos for illustration only)
Average Reflectance (SCI) Oppo Find X7 Ultra
4.5 %
Low
Good
Bad
High
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).

Uniformity

This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Oppo Find X7 Ultra
No flicker
Bad
Good
Bad
Great
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

164

Oppo Find X7 Ultra

165

Google Pixel 8
How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux
This graph shows the white point coordinates for the image pattern using the default or the faithful mode. D65 illuminant (6500 Kelvin) is a standard that defines the color of white at midday; it is used for display calibration as a white reference, therefore devices are expected to be at or close to the D65 white point.
Color fidelity
Each arrow represents the color difference between a target color pattern (base of the arrow) and its actual measurement (tip of the arrow). The longer the arrow, the more visible the color difference is. If the arrow stays within the circle, the color difference will be visible only to trained eyes. The tested color mode is the most faithful proposed by each device, and a color correction is applied to account for the different white points of each device.
White color shift with angle
This graph shows the color shift when the screen is at an angle. Each dot represents a measurement at a particular angle. Dots inside the inner circle exhibit no color shift in angle; those between the inner and outer circle have shifts that only trained experts will see; but those falling outside the outer circle are noticeable.
Circadian Action Factor Oppo Find X7 Ultra
0.63
Good
Good
Bad
Bad
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
The circadian action factor is a metric that defines how light impacts the human sleep cycle. It is the ratio of the light energy contributing to sleep disturbances (centered around 450 nm, representing blue light) over the light energy contributing to our perception (covering 400 nm to 700 nm and centered on 550 nm, which is green light). A high circadian action factor means that the ambient light contains strong blue-light energy and is likely to affect the body’s sleep cycle, while a low circadian action factor implies the light has weak blue-light energy and is less likely to affect sleeping patterns.
Spectrum of white emission with Night mode ON
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.
Spectrum of white emission with Night mode OFF
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.

Video

120

Oppo Find X7 Ultra

163

Samsung Galaxy S23
How Display Video score is composed

The video attribute evaluates the Standard Dynamic Range (SDR) and High Dynamic Range (HDR10) video handling in indoor and low-light conditions . Our measurements run in the labs are completed by perceptual testing and analysis.

Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.


Video rendering in a low-light (0 lux) environment
Clockwise from top left: Oppo Find X7 Ultra, Samsung Galaxy S24 Ultra, Apple iPhone 15 Pro Max
(Photos for illustration only)

SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
Gamut coverage for video content under 0 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
Gamut coverage for video content under 830 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
SDR Video Frame Drops FHD at 30 fps
2.8 %
Few
Good
Bad
Many
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
SDR Video Frame Drops UHD at 30 fps
3.5 %
Few
Good
Bad
Many
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
These gauges present the percentage of frame irregularities in a 30-second video. These irregularities are not necessarily perceived by users (unless they are all located at the same time stamp) but are an indicator of performance.

Touch

161

Oppo Find X7 Ultra

164

Google Pixel 7 Pro
How Display Touch score is composed

We evaluate the touch attributes under many types of contents where touch is key, and requires different behaviors such as gaming (quick touch to response time), web (smooth scrolling of the page) and images (accurate and smooth navigation from one image to another).

Average Touch Response Time Oppo Find X7 Ultra
73 ms
Fast
Good
Bad
Slow
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
Touch To Display response time
This response time test precisely evaluates the time elapsed between a single touch of the robot on the screen and the displayed action. This test is applied to activities that require high reactivity, such as gaming.

The post Oppo Find X7 Ultra Display test appeared first on DXOMARK.

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https://www.dxomark.com/oppo-find-x7-ultra-display-test/feed/ 0 Oppo Find X7 Ultra Eye Comfort DISPLAY DISPLAY indoor_noX6 sunlight_nox6 Luminance_Map_Gray_20_Portrait_Normalized HDR10_noX6
Vivo X100 Pro Display test https://www.dxomark.com/v2-vivo-x100-pro-display-test/ https://www.dxomark.com/v2-vivo-x100-pro-display-test/#respond Mon, 29 Apr 2024 12:00:42 +0000 https://www.dxomark.com/?p=170836&preview=true&preview_id=170836 We put the Vivo X100 Pro through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications: 6.78 inches AMOLED LTPO Resolution: 1260 x 2800 pixels, (~452 [...]

The post Vivo X100 Pro Display test appeared first on DXOMARK.

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We put the Vivo X100 Pro through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications:

  • 6.78 inches AMOLED LTPO
  • Resolution: 1260 x 2800 pixels, (~452 ppi density)
  • Aspect ratio: 20:9
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Vivo X100 Pro Vivo X100 Pro
153
display
149

164

160

165

152

163

148

164

Pros

  • Good color fidelity in indoor conditions
  • Good HDR10 video experience, with well-managed brightness and details

Cons

  • Unnatural rendering of dark content under sunlight
  • Screen shows a brighter area at the left edge

The Vivo X100 Pro’s display performance was overall very good, with the screen achieving a very high score in the color attribute for its excellent and faithful color rendering in indoor and low-light conditions.

The Vivo X100 Pro display showed significant improvements over the previous Vivo flagship, the X90 Pro+, particularly in the HDR10 video experience. When watching HDR10 videos in a low-light environment, the Vivo X100 Pro provided a comfortable brightness level, pleasant color-rendering, and rich details that were visible even in the darkest shades of the content. Under indoor lighting, HDR10 video performance was correct thanks mainly to the screen’s proper brightness. However, a slight lack of contrast was visible.

The device’s high brightness mode increased readability under sunlight. However, the brightness boost targeted for the darkest shades made the image content appear unnatural. The screen reached a measured luminance of 1037 nits in a 20,000 lux outdoor environment, but when taken to the extreme 100,000 lux environment (direct sunlight), the device’s luminance measured a maximum of 1890 nits. This compares with the 1500 nits achieved on the X90 Pro+.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

149

Vivo X100 Pro

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.
Skin-tone rendering in an indoor (1000 lux) environment
From left to right: Vivo X100 Pro, Vivo X90 Pro+, Huawei Mate 60 Pro, Samsung Galaxy S24 Ultra
 (Photos for illustration only)


Readability in a sunlight (>90 000 lux) environment
From left to right: Vivo X100 Pro, Vivo X90 Pro+, Huawei Mate 60 Pro, Samsung Galaxy S24 Ultra
 (Photos for illustration only)
Average Reflectance (SCI) Vivo X100 Pro
4.3 %
Low
Good
Bad
High
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).

Uniformity

This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Vivo X100 Pro
2170 Hz
Bad
Good
Bad
Great
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

160

Vivo X100 Pro

165

Google Pixel 8
How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux
This graph shows the white point coordinates for the image pattern using the default or the faithful mode. D65 illuminant (6500 Kelvin) is a standard that defines the color of white at midday; it is used for display calibration as a white reference, therefore devices are expected to be at or close to the D65 white point.
Color fidelity
Each arrow represents the color difference between a target color pattern (base of the arrow) and its actual measurement (tip of the arrow). The longer the arrow, the more visible the color difference is. If the arrow stays within the circle, the color difference will be visible only to trained eyes. The tested color mode is the most faithful proposed by each device, and a color correction is applied to account for the different white points of each device.
White color shift with angle
This graph shows the color shift when the screen is at an angle. Each dot represents a measurement at a particular angle. Dots inside the inner circle exhibit no color shift in angle; those between the inner and outer circle have shifts that only trained experts will see; but those falling outside the outer circle are noticeable.
Circadian Action Factor Vivo X100 Pro
0.66
Good
Good
Bad
Bad
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
The circadian action factor is a metric that defines how light impacts the human sleep cycle. It is the ratio of the light energy contributing to sleep disturbances (centered around 450 nm, representing blue light) over the light energy contributing to our perception (covering 400 nm to 700 nm and centered on 550 nm, which is green light). A high circadian action factor means that the ambient light contains strong blue-light energy and is likely to affect the body’s sleep cycle, while a low circadian action factor implies the light has weak blue-light energy and is less likely to affect sleeping patterns.
Spectrum of white emission with Night mode ON
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.
Spectrum of white emission with Night mode OFF
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.

Video

152

Vivo X100 Pro

163

Samsung Galaxy S23
How Display Video score is composed

The video attribute evaluates the Standard Dynamic Range (SDR) and High Dynamic Range (HDR10) video handling in indoor and low-light conditions . Our measurements run in the labs are completed by perceptual testing and analysis.

Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video rendering in a low-light (0 lux) environment
Clockwise from top left: Vivo X100 Pro, Vivo X90 Pro+, Huawei Mate 60 Pro, Samsung Galaxy S24 Ultra
 (Photos for illustration only)
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
Gamut coverage for video content under 0 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
Gamut coverage for video content under 830 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
SDR Video Frame Drops FHD at 30 fps
0.8 %
Few
Good
Bad
Many
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
SDR Video Frame Drops UHD at 30 fps
0.9 %
Few
Good
Bad
Many
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
These gauges present the percentage of frame irregularities in a 30-second video. These irregularities are not necessarily perceived by users (unless they are all located at the same time stamp) but are an indicator of performance.

Touch

148

Vivo X100 Pro

164

Google Pixel 7 Pro
How Display Touch score is composed

We evaluate the touch attributes under many types of contents where touch is key, and requires different behaviors such as gaming (quick touch to response time), web (smooth scrolling of the page) and images (accurate and smooth navigation from one image to another).

Average Touch Response Time Vivo X100 Pro
88 ms
Fast
Good
Bad
Slow
Vivo X100 Pro
Vivo X90 Pro Plus
Huawei Mate 60 Pro
Samsung Galaxy S24 Ultra
Touch To Display response time
This response time test precisely evaluates the time elapsed between a single touch of the robot on the screen and the displayed action. This test is applied to activities that require high reactivity, such as gaming.

The post Vivo X100 Pro Display test appeared first on DXOMARK.

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https://www.dxomark.com/v2-vivo-x100-pro-display-test/feed/ 0 Vivo X100 Pro DISPLAY DISPLAY Vivo_X100_Pro_readability_indoor Vivo_X100_Pro_readability_sunlight Vivo_X100_Pro_readability_uniformity Vivo_X100_Pro_video_lowlight_1
Samsung Galaxy Z Fold5 Display test https://www.dxomark.com/v2-samsung-galaxy-z-fold5-display-test/ https://www.dxomark.com/v2-samsung-galaxy-z-fold5-display-test/#respond Thu, 25 Apr 2024 09:31:37 +0000 https://www.dxomark.com/?p=170801&preview=true&preview_id=170801 We put the Samsung Galaxy Z Fold5  through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications: 7.6-inch AMOLED Dimensions: 154.9 x 67.1 x 13.4 mm [...]

The post Samsung Galaxy Z Fold5 Display test appeared first on DXOMARK.

]]>
We put the Samsung Galaxy Z Fold5  through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications:

  • 7.6-inch AMOLED
  • Dimensions: 154.9 x 67.1 x 13.4 mm (6.10 x 2.64 x 0.53 inches)
  • Resolution: 1812 x 2176 pixels (~373 ppi density)
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Samsung Galaxy Z Fold5 Samsung Galaxy Z Fold5
142
display
136

164

144

165

149

163

135

164

Pros

  • Good color fidelity and suitable brightness for HDR10 video content
  • Good readability in all tested lighting conditions
  • Smooth in most usages

Cons

  • Under sunlight, the high brightness mode gives an unnatural aspect to color content
  • The crease is visible in most situations

The Samsung Galaxy Z Fold5 provided a decent display performance, demonstrating strong showings in video and color under the updated protocol.

Good readability under sunlight is rare among ultra-premium devices, yet the Z Fold5 achieved good contrast on content viewed even in bright outdoor conditions. Our engineers measured the device’s peak brightness at 1682 nits under bright sunlight. Only slightly detracting from its all-round excellent performance, the Z Fold5’s screen was highly reflective.

The Samsung Galaxy Z Fold5 provided a wide color gamut in its default “Vivid” mode, resulting in pleasant and saturated colors in low light and indoor conditions. When in direct sunlight outdoors, the device’s high brightness mode made some colorful content look slightly desaturated and flat in “Vivid” mode. When tested in the protocol’s natural mode setting, color rendering was faithful, comfortable and pleasant, in most lighting conditions, except under sunlight.

As is typical of many Samsung devices, the Z Fold5’s brightness, colors, and detail rendering make it a good device for watching HDR10 videos in both low-light and indoor conditions.

A recurring issue with many foldable screens is the visibility of a crease when the screen is unfolded. The Z Fold5’s crease was visible in every condition, especially outdoors; and as with other foldable phones, the device was affected by a jello effect — a slight perceptible lag between the right and left sides of the display that can make content appear a bit “bent.” But our engineers observed no frame mismatches when evaluating the Z Fold5 while watching videos.

Its brightness, color, and detail rendering make it a great choice for watching videos. Accurate and reactive, the device felt smooth when browsing the web, and scrolling in the gallery, but sometimes it was prone to reacting to unwanted touches.

Note that DXOMARK tested the Z Fold5’s main screen with its protective screen on, per Samsung’s recommendation to consumers.

Exceptionally, our engineers also measured the peak brightness and reflectance of the Z Fold5’s cover screen, which is not part of the protocol and did not factor into the device’s scoring. The Z Fold5’s cover screen achieved peak brightness at 1710 nits and had the same color gamut as the main screen; moreover, the cover screen was less reflective than the main screen (4.8% vs. 6.3%).

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

136

Samsung Galaxy Z Fold5

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.
Skin-tone rendering in an indoor (1000 lux) environment

From left: Samsung Galaxy Z Fold5, Google Pixel Fold, Honor Magic Vs
(Photos for illustration only)


Readability in an outdoor (20 000 lux) environment
From left: Samsung Galaxy Z Fold5, Google Pixel Fold, Honor Magic Vs
(Photos for illustration only)
Average Reflectance (SCI) Samsung Galaxy Z Fold5
6.3 %
Low
Good
Bad
High
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).
This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Samsung Galaxy Z Fold5
240 Hz
Bad
Good
Bad
Great
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

144

Samsung Galaxy Z Fold5

165

Google Pixel 8
How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux
This graph shows the white point coordinates for the image pattern using the default or the faithful mode. D65 illuminant (6500 Kelvin) is a standard that defines the color of white at midday; it is used for display calibration as a white reference, therefore devices are expected to be at or close to the D65 white point.
Color fidelity
Each arrow represents the color difference between a target color pattern (base of the arrow) and its actual measurement (tip of the arrow). The longer the arrow, the more visible the color difference is. If the arrow stays within the circle, the color difference will be visible only to trained eyes. The tested color mode is the most faithful proposed by each device, and a color correction is applied to account for the different white points of each device.
White color shift with angle
This graph shows the color shift when the screen is at an angle. Each dot represents a measurement at a particular angle. Dots inside the inner circle exhibit no color shift in angle; those between the inner and outer circle have shifts that only trained experts will see; but those falling outside the outer circle are noticeable.
Circadian Action Factor Samsung Galaxy Z Fold5
0.72
Good
Good
Bad
Bad
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
The circadian action factor is a metric that defines how light impacts the human sleep cycle. It is the ratio of the light energy contributing to sleep disturbances (centered around 450 nm, representing blue light) over the light energy contributing to our perception (covering 400 nm to 700 nm and centered on 550 nm, which is green light). A high circadian action factor means that the ambient light contains strong blue-light energy and is likely to affect the body’s sleep cycle, while a low circadian action factor implies the light has weak blue-light energy and is less likely to affect sleeping patterns.
Spectrum of white emission with Night mode ON
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.
Spectrum of white emission with Night mode OFF
Spectrum measurements of a white web page with BLF mode on and off. This graph shows the impact of blue light filtering on the whole spectrum. All other settings used are default, in particular, the luminance level follows the auto-brightness adaptation from the manufacturer.
The wavelength (horizontal axis) defines light color but also the capacity to see it. For example, UV, which has a very low wavelength, and infra-red, which has a high wavelength, are both not visible to the human eye. White light is composed of all wavelengths between 400 nm and 700 nm, which is the range visible to the human eye.

Video

149

Samsung Galaxy Z Fold5

163

Samsung Galaxy S23
How Display Video score is composed

The video attribute evaluates the Standard Dynamic Range (SDR) and High Dynamic Range (HDR10) video handling in indoor and low-light conditions . Our measurements run in the labs are completed by perceptual testing and analysis.

Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video peak luminance vs Lighting conditions
This bar chart presents the peak luminance measured for SDR and HDR10 content on a 10% window white pattern.
Video rendering in a low-light (0 lux) environment
Clockwise from top left: Samsung Galaxy Z Fold5, Google Pixel Fold, Honor Magic Vs
(Photos for illustration only)
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
SDR video EOTF curve
These curves represent the SDR video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for SDR videos follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
HDR10 video EOTF curve
These curves represent the HDR10 video tone distribution for white color.
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). While the PQ (Perceptual Quantizer) standard is reminded here for reference, it cannot be a target for smartphones as it is an absolute standard whereas smartphones adapt their brightness to lighting conditions. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under bright lighting conditions (830 lux) in the low gray levels region (< 30%).
Gamut coverage for video content under 0 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
Gamut coverage for video content under 830 lux environment
The primary colors are measured both in HDR10 and SDR. The solid color gamut measures the extent of the color area that the device can render in total darkness. The dotted line represents the content’s artistic intent. The measured gamut should match the master color space of each video.
SDR Video Frame Drops FHD at 30 fps
0 %
Few
Good
Bad
Many
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
SDR Video Frame Drops UHD at 30 fps
0 %
Few
Good
Bad
Many
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
These gauges present the percentage of frame irregularities in a 30-second video. These irregularities are not necessarily perceived by users (unless they are all located at the same time stamp) but are an indicator of performance.

Touch

135

Samsung Galaxy Z Fold5

164

Google Pixel 7 Pro
How Display Touch score is composed

We evaluate the touch attributes under many types of contents where touch is key, and requires different behaviors such as gaming (quick touch to response time), web (smooth scrolling of the page) and images (accurate and smooth navigation from one image to another).

Average Touch Response Time Samsung Galaxy Z Fold5
75 ms
Fast
Good
Bad
Slow
Samsung Galaxy Z Fold5
Google Pixel Fold
Honor Magic V2
Touch To Display response time
This response time test precisely evaluates the time elapsed between a single touch of the robot on the screen and the displayed action. This test is applied to activities that require high reactivity, such as gaming.

The post Samsung Galaxy Z Fold5 Display test appeared first on DXOMARK.

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https://www.dxomark.com/v2-samsung-galaxy-z-fold5-display-test/feed/ 0 Samsung Galaxy Z Fold5 DISPLAY DISPLAY Samsung_Galaxy_Z_Fold5_readability_indoor Samsung_Galaxy_Z_Fold5_readability_shade Samsung_Galaxy_Z_Fold5_video_lowlight_1
Xiaomi 14 Display test https://www.dxomark.com/v2-xiaomi-14-display-test/ https://www.dxomark.com/v2-xiaomi-14-display-test/#respond Thu, 25 Apr 2024 09:29:44 +0000 https://www.dxomark.com/?p=170822&preview=true&preview_id=170822 We put the Xiaomi 14 through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases. Overview Key display specifications: 6.36 inches OLED Resolution: 1200 x 2670 pixels, (~460 ppi density) [...]

The post Xiaomi 14 Display test appeared first on DXOMARK.

]]>
We put the Xiaomi 14 through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications:

  • 6.36 inches OLED
  • Resolution: 1200 x 2670 pixels, (~460 ppi density)
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Xiaomi 14 Xiaomi 14
137
display
132

164

135

165

138

163

160

164

Pros

  • Smooth display experience when scrolling the web
  • Adapted brightness in low-light conditions for photo and web
  • Pleasing color rendering in indoor conditions for photo

Cons

  • Many frame mismatches when watching videos
  • Lack of brightness and details in indoor lighting environment when looking at photos
  • Lack of brightness and dark details when watching HDR10 videos
  • Display is not uniform

The Xiaomi 14 had a mixed display performance in our tests, although it offered a very smooth screen experience in all use cases, with a steady performance in the touch and video attributes.

The device’s best-scoring attribute was touch, thanks to an impressive average touch to display response time of 64 ms.

Although the Xiaomi 14 provided an acceptable performance in video, the device’s overall video performance was affected by some instabilities. When watching HDR10 videos in indoor conditions, the screen lacked sufficient brightness and showed few details in dark tones, particularly in low light. In addition, HDR10 frame-drop management was poor.

In readability, the Xiaomi 14 screen managed its brightness well, particularly in low-light conditions, however, it might fall a bit short on readability for intense lighting conditions. Xiaomi says that the device can reach a peak brightness of 3000 nits, but our tests showed the device reaching 2740 nits — but only for HDR video content. Our experts measured 923 nits under 20,000 lux and only 1490 nits under sunlight on a classic (20% window) white image pattern in High Brightness Mode, results that were lower than some competitors in this segment. Readability, however, was affected by the screen’s low-frequency temporal management in default mode (but the device has an anti-flicker feature that can limit this phenomenon.) The Xiaomi 14’s screen also lacked uniformity in brightness and color.

The Xiaomi 14’s colors were quite good in most lighting conditions when viewing photos, but when tested in faithful mode, the screen’s color rendering could appear to be slightly saturated.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

132

Xiaomi 14

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.
Readability in an indoor (1000 lux) environment
From left to right: Xiaomi 14, Xiaomi 13, Samsung Galaxy S24, Apple iPhone 15
(Photos for illustration only)


Readability in an outdoor (20 000 lux) environment
From left to right: Xiaomi 14, Xiaomi 13, Samsung Galaxy S24, Apple iPhone 15
(Photos for illustration only)
Average Reflectance (SCI) Xiaomi 14
4.7 %
Low
Good
Bad
High
Xiaomi 14
Samsung Galaxy S24
Apple Iphone 15
Xiaomi 13
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).

Uniformity
This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Xiaomi 14
480 Hz
Bad
Good
Bad
Great
Xiaomi 14
Samsung Galaxy S24
Apple Iphone 15
Xiaomi 13
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.