Categories

 OPPO Find X2

Comments

Display Technology

Flexible OLED Display with Diamond Pixels

6.8 inch Diagonal  /  17.5 cm Diagonal

Excluding the Rounded Corners

Flexible Organic Light Emitting Diode

Diamond Pixels with Diagonal Sub-Pixel Symmetry.

Screen Aspect Ratio

19.8: 9 = 2.20

New Higher Aspect Ratio

Most Smartphones and Widescreen TVs have 16 : 9 = 1.78

Height to Width Aspect Ratio

OPPO Find X2 display screen is 24% longer than

most Smartphones and widescreen 16:9 TV content.

Screen Size

     2.81 x   6.18 inches

7.13 x 15.68 cm

Display Width and Height in inches and cm.

Screen Area

17.3 square inches  /  111.8 square cm

After Subtracting the Camera Opening but not the Rounded Corners

A better measure of size than the diagonal length.

Supported Color Gamuts

Vivid mode  –  Wide Color Gamut with Higher Contrast

Cinematic DCI-P3 mode  –  DCI-P3 Standard Color Gamut

Gentle sRGB mode  –  sRGB / Rec.709 Standard Color Gamut

The OPPO Find X2 supports 2 Standard

Color Gamuts: sRGB and the new wider DCI-P3

Color Gamut that is used in 4K Ultra HD TV content.

Display Refresh Rates

Display Frames Per Second

Normal  60 Hz

High 120 Hz for Smoother Scrolling and Motion

Higher Refresh Rates improve image Scrolling

plus Video and Motion Performance in Apps,

and may reduce Screen Flicker that some people experience.

Display Resolution

3168 x 1440 pixels

New 3K  Quad HD+

Screen Pixel Resolution.

Quad HD can display four 1280x720 HD images.

Total Number of Pixels

4.6 Mega Pixels

Total Number of Display Pixels.

Pixels Per Inch PPI

513 PPI with Diamond Pixels

Excellent

Sharpness depends on the viewing distance and PPI.

See this on the visual acuity for a true Retina Display

Sub-Pixels Per Inch

    Red  363 SPPI

 Green  513 SPPI

   Blue  363 SPPI

Diamond Pixel displays have only half the number of

Red and Blue Sub-Pixels as RGB Stripe displays.

Total Number of Sub-Pixels

   Red  2.3 Million Sub-Pixels

Green  4.6 Million Sub-Pixels

  Blue  2.3 Million Sub-Pixels

Number of Mega Sub-Pixels for Red, Green, Blue.

Diamond Pixel displays have only half the number of

Red and Blue Sub-Pixels as RGB Stripe displays.

At High PPI this is generally not visible due to the

use of Sub-Pixel Rendering.

20/20 Vision Distance

where Pixels or Sub-Pixels

are Not Resolved

      6.7 inches / 17.0 cm  for White and Green Sub-Pixels with 20/20 Vision

 9.5 inches / 24.1 cm  for Red and Blue Sub-Pixels with 20/20 Vision

For 20/20 Vision the minimum Viewing Distance

where the screen appears perfectly sharp to the eye.

At 10 inches from the screen 20/20 Vision is 344 PPI.

Display Sharpness

at Typical Viewing Distances

 OPPO Find X2 Display appears Perfectly Sharp

Pixels are not Resolved with 20/20 Vision

at Typical Viewing Distances of

     10 to 18 inches

25 to 46 cm

The Typical Viewing Distances for this screen size

are in the range of 10 to 18 inches or 25 to 46 cm.

Also note that eye’s resolution is much lower for

Red and Blue color content than White and Green.

Appears Perfectly Sharp

at Typical Viewing Distances

 Yes

Typical Viewing Distances are 10 to 18 inches

or 25 to 46 cm for this screen size.

Overall Assessments

This section summarizes the results for all of the extensive Lab Measurements and Viewing Tests performed on the display.

See  Screen Reflections,  Brightness and Contrast,  Colors and Intensities,  Viewing Angles,  OLED Spectra

Here we provide results for the Vivid mode, which has a Wide Color Gamut and Higher Image Contrast,

the Cinematic DCI-P3 mode, which is calibrated for the new DCI-P3 Gamut that is used in 4K Ultra HD TVs,

and the Gentle sRGB mode, which is calibrated for the sRGB / Rec.709 Gamut that is used for most current

consumer photo, video, web, and computer content.

Categories

Vivid mode

Wide Color Gamut

Cinematic mode

DCI-P3 Content

Gentle mode

sRGB Content

Comments

Viewing Tests

in Subdued Ambient Lighting

Very Good Images

Photos and Videos

have Vivid Color

and Higher Contrast

Intentionally Vivid Colors

Excellent Images

Photos and Videos

have Excellent Color

and Accurate Contrast

Accurate DCI-P3 Content

Excellent Images

Photos and Videos

have Excellent Color

and Accurate Contrast

Accurate sRGB Content

The Viewing Tests examine the accuracy of

photographic images by comparing the displays

to a calibrated studio monitor and TV.

Variation with Viewing Angle

Colors and Brightness

See Viewing Angles

Color Shifts

Small to Medium

with Viewing Angle

Small Brightness Shifts

with Viewing Angle

Color Shifts

Small to Medium

with Viewing Angle

Small Brightness Shifts

with Viewing Angle

Color Shifts

Small to Medium

with Viewing Angle

Small Brightness Shifts

with Viewing Angle

The OPPO Find X2 display has a relatively small

decrease in Brightness with Viewing Angle and

relatively small Color Shifts with Viewing Angle.

See the Viewing Angles section for details.

Overall Display Assessment

Lab Tests and Measurements

Excellent OLED Display

Vivid Color Mode

Excellent OLED Display

Accurate DCI-P3 Content

Excellent OLED Display

Accurate sRGB Content

The OPPO Find X2 OLED Display performed

very well in the Lab Tests and Measurements.

Absolute Color Accuracy

Measured over Entire Gamut

See Figure 2 and Colors

 Good Color Accuracy

Colors More Saturated

Intentionally Vivid Colors

Excellent Color Accuracy

Color Errors are Very Small

Accurate DCI-P3 Content

Excellent Color Accuracy

Color Errors are Very Small

Accurate sRGB Content

Absolute Color Accuracy is measured with a

Spectroradiometer for 41 Reference Colors

uniformly distributed within the entire Color Gamut.

See Figure 2 and Colors for details.

Image Contrast Accuracy

See Figure 3 and Contrast

Very Good Accuracy

Image Contrast

Intentionally Higher

Excellent Accuracy

Image Contrast

Very Accurate

Excellent Accuracy

Image Contrast

Very Accurate

The Image Contrast Accuracy is determined by

measuring the Log Intensity Scale and Gamma.

See Figure 3 and Contrast for details.

Performance in Ambient Light

Display Brightness

Screen Reflectance

Contrast Rating

See Brightness and Contrast

See Screen Reflections

High Display Brightness

Record Low Reflectance

High Contrast Rating

for Ambient Light

Higher Brightness with

Auto Brightness On

High Display Brightness

Record Low Reflectance

High Contrast Rating

for Ambient Light

Higher Brightness with

Auto Brightness On

High Display Brightness

Record Low Reflectance

High Contrast Rating

for Ambient Light

Higher Brightness with

Auto Brightness On

Smartphones are seldom used in the dark.

Screen Brightness and Reflectance determine

the Contrast Rating for High Ambient Light.

See the Brightness and Contrast section for details.

See the Screen Reflections section for details.

Overall Display Calibration

Image and Picture Quality

Lab Tests and Viewing Tests

Wide Color Gamut Mode

Intentionally Vivid Colors

and Higher Image Contrast

Excellent Calibration

Accurate DCI-P3 Content 

Excellent Calibration

Accurate sRGB Content

OPPO Find X2 display has Gentle and Cinematic Modes

that deliver accurately calibrated colors and images

and a Vivid Color Mode that is preferred by

some users and for some applications.

Overall Display Grade

Overall Assessment

Overall OPPO Find X2 Display Grade is Excellent A+

DisplayMate Best Smartphone Display Award

with 12 Smartphone Display Performance Records

An Excellent Top Tier World Class Smartphone Display

The OPPO Find X2 display delivers Excellent

Image Quality, has both Gentle sRGB and

Cinematic DCI-P3 modes and a Vivid Mode with

a Wide Color Gamut, has High Screen Brightness

and low Reflectance, has good Viewing Angles, and

is an all around Top Performing Smartphone Display.

Vivid Color Mode

Also Best for Viewing in

High Ambient Light

Accurate DCI-P3 Content

For Viewing 4K UHD TV

DCI-P3 Cinema Content

Accurate sRGB mode

For Viewing Most Content

Photo Video Movie Web

Categories

Vivid mode

Wide Color Gamut

Cinematic mode

DCI-P3 Content

Gentle mode

sRGB Content

Comments

The OPPO Find X2 sets or matches 12 Smartphone Display Performance Records for:

Numerical Performance Differences that are Visually Indistinguishable are considered Matched and Tied Performance Records.

· Highest   Absolute Color Accuracy  (0.4 JNCD)  –  Visually Indistinguishable From Perfect.

· Highest   Image Contrast Accuracy and Intensity Scale Accuracy  (2.21 Gamma)  –  Visually Indistinguishable From Perfect.

· Smallest  Shift in Color Accuracy and Intensity Scale with the Image Content APL  (0.2 JNCD)  –  Visually Indistinguishable From Perfect.

· Smallest  Shift in Image Contrast and Intensity Scale with the Image Content APL  (0.01 Gamma)  –  Visually Indistinguishable From Perfect.

· Highest   Full Screen Brightness for OLED Smartphones  (800 nits at 100% APL).

· Highest   Peak Display Brightness  (1,360 nits for Low APL).

· Highest   Contrast Ratio  (Infinite).

· Lowest    Screen Reflectance  (4.4 percent).

· Highest   Contrast Rating in Ambient Light  (182 for 100% APL and 309 for Peak Brightness).

· Smallest  Brightness Variation with Viewing Angle  (23 percent at 30 degrees).

· Smallest  Color Variation of White with Viewing Angle  (1.0 JNCD at 30 degrees).

· Highest   Visible Screen Resolution 3K (3168x1440)  –  4K Does Not Appear Visually Sharper on a Smartphone.

Screen Reflections

All display screens are mirrors good enough to use for personal grooming – but that is actually a very bad feature…

We measured the light reflected from all directions and also direct mirror (specular) reflections, which are much more

distracting and cause more eye strain. Many Smartphones still have greater than 10 percent reflections that make

the screen much harder to read even in moderate ambient light levels, requiring ever higher brightness settings that

waste precious battery power. Manufacturers should reduce the mirror reflections with anti-reflection coatings and

matte or haze surface finishes.

Our Lab Measurements include Average Reflectance for Ambient Light from All Directions and for Mirror Reflections.

We use an Integrating Hemisphere and a highly collimated pencil light beam together with a Spectroradiometer.

Note that the Screen Reflectance is exactly the same for all of the OPPO Find X2 Screen Modes.

The OPPO Find X2 has close to the lowest Screen Reflectance level that we have ever measured for a Smartphone.

These results are extremely important for screen readability, picture quality, and color accuracy in ambient light.

Categories

 OPPO Find X2

Comments

Average Screen Reflection

Light From All Directions

4.4 percent

for Ambient Light Reflections

Excellent

Measured using an Integrating Hemisphere and

a Spectroradiometer.

The lowest value we have ever measured

for a Smartphone is 4.3 percent.

Mirror Reflections

Percentage of Light Reflected

 5.3 percent

for Mirror Reflections

Very Good

These are the most annoying types of Reflections.

Measured using a Spectroradiometer and a narrow

collimated pencil beam of light reflected off the screen.

The lowest value we have ever measured

for a Smartphone is 5.3 percent.

Brightness and Contrast

The Contrast Ratio is the specification that gets the most attention, but it only applies for low ambient light, which is seldom

the case for mobile displays.

Much more important is the Contrast Rating for High Ambient Light, which indicates how easy it is to read the screen under

high ambient lighting and depends on both the Maximum Brightness and the Screen Reflectance. The larger the better.

The display’s actual on-screen Contrast Ratio changes with the Ambient Light lux level and is proportional to the Contrast Rating.

Categories

Vivid mode

Wide Color Gamut

Cinematic mode

DCI-P3 Content

Gentle mode

sRGB Content

Comments

Home Screen Peak Brightness

Measured for White

Brightness 696 cd/m²

Excellent

Brightness 484 cd/m²

Very Good

Brightness 484 cd/m²

Very Good

The Peak Brightness for White on the Home Screen.

Measured Average Brightness

50% Average Picture Level

Brightness 580 cd/m²

Excellent

Brightness 473 cd/m²

Very Good

Brightness 473 cd/m²

Very Good

This is the Brightness for typical screen content

that has a 50% Average Picture Level.

Measured Full Brightness

100% Full Screen White

Brightness 502 cd/m²

Very Good

Brightness 486 cd/m²

Very Good

Brightness 489 cd/m²

Very Good

This is the Brightness for a screen that is entirely

all white with 100% Average Picture Level.

Measured Peak Brightness

1% Average Picture Level

Brightness 735 cd/m²

Excellent

Brightness 459 cd/m²

Very Good

Brightness 458 cd/m²

Very Good

This is the Peak Brightness for a screen that

has only a tiny 1% Average Picture Level.

Dynamic Brightness

Change in Luminance with

Average Picture Level APL

32 percent Decrease

Intentionally Large

6 percent Decrease

Very Good

6 percent Decrease

Very Good

This is the percent Brightness decrease with APL

Average Picture Level. Ideally should be 0 percent.

Low Ambient Light

Lowest Peak Brightness

Super Dimming Mode

Brightness Slider to Minimum

2 cd/m²

For Very Low Light

2 cd/m²

For Very Low Light

2 cd/m²

For Very Low Light

This is the Lowest Brightness with the Slider set to

Minimum. This is useful for working in very dark

environments. Picture Quality remains Excellent.

Black Brightness at 0 lux

at Maximum Brightness Setting

0 cd/m²

Outstanding

0 cd/m²

Outstanding

0 cd/m²

Outstanding

Black Brightness is important for Low Ambient Light,

which is seldom the case for mobile devices.

Contrast Ratio at 0 lux

Relevant for Low Ambient Light

Infinite

Outstanding

Infinite

Outstanding

Infinite

Outstanding

Only relevant for Low Ambient Light,

which is seldom the case for mobile devices.

High Brightness Mode

Automatic Brightness in High Ambient Light

Measured High Brightness Mode

50% Average Picture Level

High Brightness Mode

969 cd/m²

Excellent

High Brightness Mode

719 cd/m²

Excellent

High Brightness Mode

717 cd/m²

Excellent

This is the Brightness for typical screen content

that has a 50% Average Picture Level.

Measured High Brightness Mode

100% Full screen White

High Brightness Mode

800 cd/m²

Excellent

High Brightness Mode

764 cd/m²

Excellent

High Brightness Mode

764 cd/m²

Excellent

This is the Brightness for a screen that is entirely

all white with 100% Average Picture Level.

Measured High Brightness Mode

1% Average Picture Level

High Brightness Mode

1,360 cd/m²

Excellent

High Brightness Mode

669 cd/m²

Excellent

High Brightness Mode

666 cd/m²

Excellent

This is the Peak Brightness for a screen that

has only a small 1% Average Picture Level.

High Ambient Light Contrast Rating

Contrast Rating

for High Ambient Light

The Higher the Better

for Screen Readability

in High Ambient Light

114 – 167

With Manual Brightness

Very Good

182 – 309

High Brightness Mode

Excellent

104 – 110

With Manual Brightness

Very Good

152 – 174

High Brightness Mode

Excellent

104 – 111

With Manual Brightness

Very Good

151 – 174

High Brightness Mode

Excellent

Depends on the Screen Reflectance and Brightness.

Defined as Maximum Brightness / Average Reflectance.

The display’s actual on-screen Contrast Ratio

changes with the Ambient Light lux level and

is proportional to the Contrast Rating.

Screen Readability

in High Ambient Light

Very Good  A

With Manual Brightness

Excellent  A+

With Auto Brightness On

Very Good  A

With Manual Brightness

Excellent  A+

With Auto Brightness On

Very Good  A

With Manual Brightness

Excellent  A+

With Auto Brightness On

Indicates how easy it is to read the screen

under High Ambient Lighting. Depends on

both the Screen Reflectance and Brightness.

See High Ambient Light Screen Shots

Colors and Intensities

The Color Gamut, Intensity Scale, and White Point determine the quality and accuracy of all displayed images and all

the image colors. Bigger is definitely Not Better because the display needs to match all the Standards that were used

when the content was produced.

Categories

Vivid mode

Wide Color Gamut

Cinematic mode

DCI-P3 Content

Gentle mode

sRGB Content

Comments

Color of White

Color Temperature in degrees

Measured in the dark at 0 lux

See Figure 1

7,500 K

2.8 JNCD from D65 White

User Adjustable

from 6,500 K to 9,600 K

Intentionally Bluish Mode

6,510 K

0.4 JNCD from D65 White

Very Close to Standard

Accurate DCI-P3 Content

See Figure 1

6,510 K

0.4 JNCD from D65 White

Very Close to Standard

Accurate sRGB Content

See Figure 1

D65 with 6,500 K is the standard color of White

for most Consumer Content and needed for

accurate color reproduction of all images.

JNCD is a Just Noticeable Color Difference.

White Point accuracy is more critical than other colors.

See Figure 1 for the plotted White Points.

See Figure 2 for the definition of JNCD.

Color Gamut

Measured in the dark at 0 lux

See Figure 1

99 percent

DCI-P3 Cinema Gamut

Intentionally Vivid Colors

Wide Color Gamut Mode

124 percent

sRGB / Rec.709 Gamut

Intentionally Vivid Colors

Wide Color Gamut Mode

See Figure 1

101 percent

DCI-P3 Cinema Gamut

Very Close to Standard

Accurate DCI-P3 Content

See Figure 1

102 percent

sRGB / Rec.709 Gamut

Very Close to Standard

Accurate sRGB Content

See Figure 1

Most current consumer content uses sRGB / Rec.709.

The new 4K UHD TVs and Digital Cinema use DCI-P3.

A Wide Color Gamut is useful in High Ambient Light

and for some applications. It can be used with Color

Management to dynamically change the Gamut.

See Figure 1

Absolute Color Accuracy

Absolute Color Accuracy

Average Color Error at 0 lux

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 2

Average Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0155

3.9 JNCD

Intentionally Vivid Colors

Wide Color Gamut Mode

See Figure 2

Average Color Error

From DCI-P3

Δ(u’v’) = 0.0015

0.4 JNCD

Excellent Accuracy

Accurate DCI-P3 Content

See Figure 2

 Average Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0015

 0.4 JNCD

Excellent Accuracy

Accurate sRGB Content

See Figure 2

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD and for the

Accuracy Plots showing the measured Color Errors.

Color Errors below 3.5 JNCD are Very Good.

Color Errors  3.5 to 7.0 JNCD are Good.

Color Errors above 7.0 JNCD are Poor.

Absolute Color Accuracy

Largest Color Error at 0 lux

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 2

Largest Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0408

10.2 JNCD

for 100% Red

Intentionally Vivid Colors

Wide Color Gamut Mode

See Figure 2

Largest Color Error

From DCI-P3

Δ(u’v’) = 0.0030

0.8 JNCD

for 100% Cyan-Blue

Excellent Accuracy

Accurate DCI-P3 Content

See Figure 2

Largest Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0032

0.8 JNCD

for 100% Yellow-Red

Excellent Accuracy

Accurate sRGB Content

See Figure 2

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD and for the

Accuracy Plots showing the measured Color Errors.

Color Errors below 3.5 JNCD are Very Good.

Color Errors  3.5 to 7.0 JNCD are Good.

Color Errors above 7.0 JNCD are Poor.

Changes in Absolute Color Accuracy with Average Picture Level APL

Measured Shifts in the Absolute Color Accuracy with Image Content from Low 1% APL to High 50% APL

Shift in the Color of White

Just Noticeable Color Difference

See Figure 4

White Point Color Shift

from Low to High APL

Δ(u’v’) = 0.0012

0.3 JNCD

Excellent

White Point Color Shift

from Low to High APL

Δ(u’v’) = 0.0003

0.1 JNCD

Excellent

See Figure 4

White Point Color Shift

from Low to High APL

Δ(u’v’) = 0.0003

0.1 JNCD

Excellent

See Figure 4

JNCD is a Just Noticeable Color Difference

See Figure 2 for the definition of JNCD.

See Figure 4 for the measured Color Shifts.

Color Shifts below 3.5 JNCD are Very Good.

Color Shifts  3.5 to 7.0 JNCD are Good.

Color Shifts above 7.0 JNCD are Poor.

Average Color Shift

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 4

Vivid mode

Intentionally Variable

Average Color Shift

from Low to High APL

Δ(u’v’) = 0.0006

0.2 JNCD

Excellent

See Figure 4

Average Color Shift

from Low to High APL

Δ(u’v’) = 0.0006

0.2 JNCD

Excellent

See Figure 4

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

See Figure 4 for the measured Color Shifts.

Color Shifts below 3.5 JNCD are Very Good.

Color Shifts  3.5 to 7.0 JNCD are Good.

Color Shifts above 7.0 JNCD are Poor.

Largest Color Shift

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 4

Vivid mode

Intentionally Variable

Largest Color Shift

from Low to High APL

Δ(u’v’) = 0.0012

0.3 JNCD

for 75% Blue-Magenta

Excellent

See Figure 4

Largest Color Shift

from Low to High APL

Δ(u’v’) = 0.0016

0.4 JNCD

for 100% Magenta-Red

Excellent

See Figure 4

JNCD is a Just Noticeable Color Difference

See Figure 2 for the definition of JNCD.

See Figure 4 for the measured Color Shifts.

Color Shifts below 3.5 JNCD are Very Good.

Color Shifts  3.5 to 7.0 JNCD are Good.

Color Shifts above 7.0 JNCD are Poor.

Intensity Scale and Image Contrast Accuracy

Dynamic Brightness

Change in Luminance with

Average Picture Level APL

32 percent Decrease

Intentionally Large

6 percent Decrease

Very Good

6 percent Decrease

Very Good

This is the percent Brightness decrease with APL

Average Picture Level. Ideally should be 0 percent.

Intensity Scale and

Image Contrast

See Figure 3

Smooth and Straight

Very Good

Slightly Too Steep

See Figure 3

Very Smooth and Straight

Excellent

Very Accurate

See Figure 3

Very Smooth and Straight

Excellent

Very Accurate

See Figure 3

The Intensity Scale controls image contrast needed

for accurate Image Contrast and Color reproduction.

See Figure 3

Gamma for the Intensity Scale

Larger has more Image Contrast

See Figure 3

2.37

Very Good

Gamma Intentionally High

2.20

Excellent

Gamma Very Accurate

 2.21

Excellent

Gamma Very Accurate

Gamma is the log slope of the Intensity Scale.

Gamma of 2.20 is the standard and needed for

accurate Image Contrast and Color reproduction.

See Figure 3

Image Contrast Accuracy

Very Good

Excellent

Excellent

See Figure 3

Viewing Angles

The variation of Brightness, Contrast, and Color with Viewing Angle is especially important for Smartphones because

of their larger screen and multiple viewers. The typical manufacturer 176+ degree specification for LCD Viewing Angle

is nonsense because that is where the Contrast Ratio falls to a miniscule 10. For most LCDs there are substantial

degradations at less than ±30 degrees, which is not an atypical Viewing Angle for Smartphones and Tablets.

The Viewing Angle variations are essentially identical for all of the OPPO Find X2 Screen Modes.

Note that the Viewing Angle performance is also very important for a single viewer because the Viewing Angle can vary

significantly based on how the Smartphone is held. The Viewing Angle can be very large if resting on a table or desk.

The OPPO Find X2 display has a Brightness (Luminance) fall off with Viewing Angle that is much smaller than the best LCD displays.

The White Point Color Shift is the most viewer noticeable Color Shift with Viewing Angle because it is often the screen background.

Blue Color Shifts are less visually noticeable than the Red and Green Color Shifts found in many Smartphone displays.

Note that we now list the Color Shifts for each individual Primary Color instead of only listing the Maximum Color Shift,

which had up to a higher 5.0 JNCD threshold for receiving a Very Good Green Rating. With the new 3.5 JNCD metric

almost all current model OLED Smartphone Displays would receive a Yellow Rating for one or more of the Primary Colors.

The Color Shifts for the OPPO Find X2 are all Small to Medium and all receive Very Good to Excellent Green Ratings.

Categories

Vivid mode

Wide Color Gamut

Cinematic mode

DCI-P3 Content

Gentle mode

sRGB Content

Comments

Brightness Decrease

at a 30 degree Viewing Angle

23 percent Decrease

Small Decrease

Very Good

Most screens become less bright when tilted.

LCD decrease is generally greater than 50 percent.

Contrast Ratio at 0 lux

at a 30 degree Viewing Angle

Infinite Contrast Ratio

Outstanding

A measure of screen readability when the screen

is tilted under low ambient lighting.

White Point Color Shift

at a 30 degree Viewing Angle

Small Color Shift

Δ(u’v’) = 0.0040

 1.0 JNCD  Excellent

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts below 3.5 JNCD are Very Good.

Color Shifts for the Primaries

Red Primary Color Shift

at a 30 degree Viewing Angle

Small Color Shift

Δ(u’v’) = 0.0103

 2.6 JNCD  Very Good

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts below 3.5 JNCD are Very Good.

Green Primary Color Shift

at a 30 degree Viewing Angle

Small Color Shift

Δ(u’v’) = 0.0064

 1.6 JNCD  Excellent

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts below 3.5 JNCD are Very Good.

Blue Primary Color Shift

at a 30 degree Viewing Angle

Medium Color Shift

Δ(u’v’) = 0.0137

 3.4 JNCD  Very Good

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts below 3.5 JNCD are Very Good.

Color Shifts for Color Mixtures

at a 30 degree Viewing Angle

Reference Brown (255, 128, 0)

 Small Color Shift

Δ(u’v’) = 0.0024

0.6 JNCD  Excellent

JNCD is a Just Noticeable Color Difference.

Color Shifts for non-IPS LCDs are about 10 JNCD.

Reference Brown is a good indicator of color shifts

with angle because of unequal drive levels and

roughly equal luminance contributions from Red

and Green. See Figure 2 for the definition of JNCD.

Display Spectra

The Display Spectra for the Screen Modes and for the Eye Care Night Mode are measured in Figure 5 below.

The Eye Care Night Mode is designed to change the color balance of the display in order to reduce the amount of Blue Light

produced by the display, which some recent research indicates can affect how well users sleep afterwards.