Categories

 Apple iPhone 14 Pro Max

Comments

Display Technology

Flexible OLED Display with Diamond Pixels

6.7 inch Diagonal  / 17.0 cm Diagonal

Excluding the Rounded Corners

Flexible Organic Light Emitting Diode

Diamond Pixels with Diagonal Symmetry.

Screen Aspect Ratio

19.5 : 9 = 2.17

Higher Aspect Ratio

Most Smartphones and Widescreen TVs have 16 : 9 = 1.78

Height to Width Aspect Ratio

iPhone 14 Pro Max display screen is 22% longer than

most Smartphones and widescreen 16:9 TV content.

Screen Size

     2.80 x   6.07 inches

7.12 x 15.43 cm

Display Width and Height in inches and cm.

Screen Area

17.0 square inches  / 109 square cm

The Rounded Corners Account for only 0.6% of Full Rectangular Screen Area

A better measure of size than the diagonal length.

Sensor Slot Area

Dynamic Island

The Sensor Slot Area of the Screen holds the Front Camera and 3D Sensor

It has only 1.1% of the Total Screen Area

It can be Dynamically Enlarged by OS Software into the Dynamic Island

in order to show Multiple Alerts and Information from Running Apps

The Sensor Slot and Dynamic Island are at the top of

the Screen as a rectangular area with rounded corners.

Supported Color Gamuts

              Standard Wide Gamut  –  DCI-P3 Digital Cinema Content

   Standard Normal Gamut  –  sRGB / Rec.709 Content

Automatic Color Gamut Management for Content with ICC Profiles

The iPhone 14 Pro Max supports 2 Standard Gamuts including the new wider DCI-P3 Color Gamut that is

used in the 4K Ultra HD TV content.

Display Refresh Rates

Higher 120 Hz Refresh for Smoother Scrolling and Motion

The Refresh Rate changes Automatically based on the image content

For Static Images the Refresh Rate can go as low as 1 Hz

Higher Refresh Rates improve image Scrolling

plus Video and Motion Performance in Apps,

and may reduce Screen Flicker that some

people experience.

Display Resolution

2796 x 1290 pixels

2.8K  Full HD+

Screen Pixel Resolution.

Quad HD can display four 1280x720 HD images.

Total Number of Pixels

3.6 Mega Pixels

Total Number of Pixels.

Pixels Per Inch

460 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  325 SPPI

 Green  460 SPPI

   Blue  325 SPPI

Diamond Pixel displays have only half the number

of Red and Blue Sub-Pixels as RGB Stripe displays.

See the Diamond Sub-Pixel layout

Total Number of Sub-Pixels

   Red  1.8 Million Sub-Pixels

Green  3.6 Million Sub-Pixels

  Blue  1.8 Million Sub-Pixels

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

Diamond Sub-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

        7.5 inches / 19.0 cm for White and Green Sub-Pixels with 20/20 Vision

 10.6 inches / 26.9 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.

Display Sharpness

at Typical Viewing Distances

 iPhone 14 Pro Max Display appears Perfectly Sharp

Pixels are not Resolved with 20/20 Vision

at Typical Viewing Distances of

     12 to 18 inches

30 to 46 cm

The Typical Viewing Distances for this screen size

are in the range of 12 to 18 inches or 30 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 12 to 18 inches

or 30 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

The iPhone 14 Pro Max has Automatic Color Management that switches to the appropriate Color Gamut for Content with ICC Color Profiles.

The DCI-P3 Digital Cinema Gamut is used in 4K Ultra HD TVs, and other advanced imaging applications.

The sRGB / Rec.709 Gamut is used for most current consumer photo, video, web, and computer content.

Categories

Wide Gamut

DCI-P3 Content

Standard Gamut

sRGB / Rec.709 Content

Comments

Viewing Tests

in Subdued Ambient Lighting

 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 an 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

The iPhone 14 Pro Max display has a relatively small

decrease in Brightness with Viewing Angle and

relatively small to Medium Color Shifts with

Viewing Angle.

See the Viewing Angles section for details.

Overall Display Assessment

Lab Tests and Measurements

 Excellent OLED Display

Accurate DCI-P3 Content

Excellent OLED Display

Accurate sRGB Content

The iPhone 14 Pro Max OLED Display performed

very well in the Lab Tests and Measurements.

Absolute Color Accuracy

Measured over Entire Gamut

See Figure 2 and 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

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

Very Low Reflectance

High Contrast Rating

for Ambient Light

Higher Brightness with

Auto-Brightness On

High Display Brightness

Very 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

Excellent Calibration

Accurate DCI-P3 Content

Excellent Calibration

Accurate sRGB Content

iPhone 14 Pro Max display delivers accurately

calibrated colors and images for both

Wide DCI-P3 and Standard sRGB Content.

Overall Display Grade

Overall Assessment

Overall iPhone 14 Pro Max Display Grade is Excellent A+

DisplayMate Best Smartphone Display Award

with 15 Smartphone Display Performance Records

including 7 that are Visually Indistinguishable From Perfect

An Excellent Top Tier World Class Smartphone Display

The iPhone 14 Pro Max display delivers excellent

image quality for Wide DCI-P3 Color Content

and Standard sRGB Color Content, with

high Screen Brightness and low Reflectance,

has good Viewing Angles, and is an all around

top performing Smartphone display.

Accurate DCI-P3 Content

For Viewing 4K UHD TV

DCI-P3 Cinema Content

Accurate Standard sRGB Content

For Viewing Most Current Content

Photo Video Movie Web

Categories

Wide Gamut

DCI-P3 Content

Standard Gamut

sRGB / Rec.709 Content

Comments

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.

The Screen Reflectance is exactly the same for all Color Gamuts.

The iPhone 14 Pro Max has close to the lowest Screen Reflectance levels 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

 iPhone 14 Pro Max

Comments

Average Screen Reflection

Light From All Directions

4.5 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

 5.5 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 5.4 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.

The iPhone 14 Pro Max comes set with Auto-Brightness turned On, which automatically changes the display Brightness

based on the current level of Ambient Light measured by a sensor beneath the OLED display near the top of the screen..

The Maximum Brightness is higher with Auto-Brightness On.

Categories

Wide Gamut

DCI-P3 Content

Standard Gamut

sRGB / Rec.709 Content

Comments

Manual Brightness Mode

Auto-Brightness Off

Home Screen Peak Brightness

Measured for White

Brightness 840 cd/m²

Excellent

Brightness 840 cd/m²

Excellent

The Peak Brightness for White on the Home Screen.

Measured Maximum Brightness

50% Average Picture Level

Brightness 837 cd/m²

Excellent

Brightness 839 cd/m²

Excellent

This is the Brightness for typical screen content

that has a 50% Average Picture Level.

Measured Maximum Brightness

100% Full Screen White

Brightness 825 cd/m²

Excellent

Brightness 827 cd/m²

Excellent

This is the Brightness for a screen that is entirely

all white with 100% Average Picture Level.

Measured Maximum Brightness

1% Average Picture Level

Brightness 836 cd/m²

Excellent

Brightness 838 cd/m²

Excellent

This is the Brightness for a screen that

has only a tiny 1% Average Picture Level.

Dynamic Brightness

Change in Luminance with

Average Picture Level

1 percent Decrease

Excellent

1 percent Decrease

Excellent

This is the percent Brightness decrease with APL,

Average Picture Level. Ideally should be 0 percent.

Auto Brightness Mode

The Maximum Brightness Increases Automatically with the Ambient Light Level

Measured at 5,500 lux Ambient Light

Measured Maximum Brightness

50% Average Picture Level

Brightness 1,028 cd/m²

Excellent

Brightness 1,032 cd/m²

Excellent

This is the Brightness for typical screen content

that has a 50% Average Picture Level.

Measured Maximum Brightness

100% Full Screen White

Brightness 1,016 cd/m²

Excellent

Brightness 1,020 cd/m²

Excellent

This is the Brightness for a screen that is entirely

all white with 100% Average Picture Level.

Measured Maximum Brightness

1% Average Picture Level

Brightness 1,031 cd/m²

Excellent

Brightness 1,035 cd/m²

Excellent

This is the Brightness for a screen that

has only a tiny 1% Average Picture Level.

Dynamic Brightness

Change in Luminance with

Average Picture Level

1 percent Decrease

Excellent

1 percent Decrease

Excellent

This is the percent Brightness decrease with APL,

Average Picture Level. Ideally should be 0 percent.

Auto High Brightness Mode

Measured at Very High Ambient Light

The Maximum Brightness Increases Significantly for Lower Average Picture Levels in order to improve Screen Readability

Measured Maximum Brightness

50% Average Picture Level

Brightness 1,045 cd/m²

Excellent

Brightness 1,044 cd/m²

Excellent

This is the Brightness for typical screen content

that has a 50% Average Picture Level.

Measured Maximum Brightness

100% Full Screen White

Brightness 1,021 cd/m²

Excellent

Brightness 1,026 cd/m²

Excellent

This is the Brightness for a screen that is entirely

all white with 100% Average Picture Level.

Measured Maximum Brightness

1% Average Picture Level

Brightness 2,108 cd/m²

Excellent

Brightness 2,307 cd/m²

Excellent

This is the Brightness for a screen that

has only a tiny 1% Average Picture Level.

Dynamic Brightness

Change in Luminance with

Average Picture Level

52 percent Decrease

Intentionally Large

56 percent Decrease

Intentionally Large

This is the percent Brightness decrease with APL,

Average Picture Level. Ideally should be 0 percent.

Low Ambient Light

Lowest Peak Brightness

Super Dim Setting

Brightness Slider to Minimum

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

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

Only relevant for Low Ambient Light,

which is seldom the case for mobile devices.

Always-On Display Mode

The Brightness Varies Automatically with the Ambient Light Level

Measured Brightness for White

    Low Ambient Light      2 cd/m²

    High Ambient Light  480 cd/m²

    Low Ambient Light      2 cd/m²

    High Ambient Light  480 cd/m²

Displayed image content when the iPhone

is in Standby Mode.

High Ambient Light Contrast Rating

For White with the Brightness Slider at Maximum

Contrast Rating

for High Ambient Light

The Higher the Better

for Screen Readability

in High Ambient Light

183 – 186

With Manual Brightness Mode

Very Good

227 – 468

With Auto-Brightness On

Excellent

184 – 186

With Manual Brightness Mode

Very Good

228 – 513

With Auto-Brightness On

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 Mode

Excellent  A+

With Auto-Brightness On

Very Good  A

With Manual Brightness Mode

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.

The iPhone has Automatic Color Management that switches to the appropriate Color Gamut for Content with ICC Color Profiles.

Categories

Wide Gamut

DCI-P3 Content

Standard Gamut

sRGB / Rec.709 Content

Comments

Color of White

Color Temperature in degrees

Measured in the dark at 0 lux

See Figure 1

 6,550 K

0.2 JNCD from D65 White

Very Close to Standard

Excellent

Accurate White Point

See Figure 1

6,550 K

0.2 JNCD from D65 White

Very Close to Standard

Excellent

Accurate White Point

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

 102 percent

DCI-P3 Cinema Gamut

Very Close to Standard

Excellent

Accurate Wide Gamut

See Figure 1

104 percent

sRGB / Rec.709 Gamut

Very Close to Standard

Excellent

Accurate Standard Gamut

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

Color Gamut in Ambient Light

Measured at 1,000 lux

Display Brightness set at Maximum

1,000 lux corresponds to

very bright indoor lighting or

outdoor daylight with an

overcast sky.

at 1,000 lux

90 percent

DCI-P3 Cinema Gamut

Very Good

See Figure 1

at 1,000 lux

91 percent

sRGB / Rec.709 Gamut

Very Good

See Figure 1

The visible on-screen Color Gamut decreases

as the Ambient Light level increases.

The Ambient Light level is measured in lux.

The Gamut Depends on both the Display Brightness

and the Screen Reflectance.

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 DCI-P3

Δ(u’v’) = 0.0019

0.5 JNCD

Excellent Accuracy

Accurate DCI-P3 Content

See Figure 2

Average Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0020

0.5 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

Accuracy Plots showing the measured Color Errors.

Color Errors below 2.0 JNCD are Excellent

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

Maximum Color Error at 0 lux

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 2

Largest Color Error

From DCI-P3

Δ(u’v’) = 0.0071

1.8 JNCD

for 100% Blue

Excellent Accuracy

Accurate DCI-P3 Content

See Figure 2

Largest Color Error

From sRGB / Rec.709

Δ(u’v’) = 0.0072

1.8 JNCD

for 100% Blue

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

Accuracy Plots showing the measured Color Errors.

Color Errors below 2.0 JNCD are Excellent

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.

Shifts 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’) = 0.0014

0.3 JNCD

Excellent

See Figure 4

White Point Color Shift

from Low to High APL

Δ(u’v’) = 0.0013

0.3 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 2.0 JNCD are Excellent

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

Average Color Shift

from Low to High APL

Δ(u’v’) = 0.0013

0.3 JNCD

Excellent

See Figure 4

Average Color Shift

from Low to High APL

Δ(u’v’) = 0.0014

0.3 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 2.0 JNCD are Excellent

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.

Maximum Color Shift

For 41 Reference Colors

Just Noticeable Color Difference

See Figure 4

Largest Color Shift

from Low to High APL

Δ(u’v’) = 0.0036

0.9 JNCD

for 100% Cyan-Blue

Excellent

See Figure 4

Largest Color Shift

from Low to High APL

Δ(u’v’) = 0.0030

0.8 JNCD

for 100% Cyan-Blue

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 2.0 JNCD are Excellent

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

1 percent Decrease

Excellent

1 percent Decrease

Excellent

This is the percent Brightness decrease with APL,

Average Picture Level. Ideally should be 0 percent.

Intensity Scale and

Image Contrast

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

Gamma 2.22

Excellent

Gamma Very Accurate

 Gamma 2.22

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

 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 both of the Color Gamut 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 iPhone 14 Pro Max display has a Brightness (Luminance) fall off with Viewing Angle that is much smaller than the best LCD displays.

Color Shifts:

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

The 14 Pro Max has a White Shift of 1.5 JNCD at 30 degrees, which is unlikely to be noticeable.

· The Color Shifts throughout the entire Color Gamut vary as combinations of the Primary Color Shifts.

· The Color Shift for the Red Primary at 30 degrees Viewing Angle is 3.6 JNCD, slightly greater than the 3.5 JNCD limit for a

Green Very Good Rating.

· The Color Shift for the Green Primary at 30 degrees Viewing Angle is 3.7 JNCD, slightly greater than the 3.5 JNCD limit for a

Green Very Good Rating.

· The Color Shift for the Blue Primary at 30 degrees Viewing Angle is 4.6 JNCD, somewhat greater than the 3.5 JNCD limit for a

Green Very Good Rating. But Color Shifts in the Blue Region are less visually noticeable as discussed in this article

Most current model OLED Smartphone Displays have 1 or 2 Primary Color Shift Yellow ratings.

Categories

Wide Gamut

DCI-P3 Content

Standard Gamut

sRGB / Rec.709 Content

Comments

Brightness Decrease

at a 30 degree Viewing Angle

25 percent Decrease

Small Decrease

Very Good

Most screens become less bright when tilted.

OLED decrease is due to optical absorption.

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’) = 0.0059 Shift

 1.5 JNCD  Excellent

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts below 2.0 JNCD are Excellent

Color Shifts for the Primaries

Red Primary Color Shift

at a 30 degree Viewing Angle

Medium Color Shift

Δ(u’v’) = 0.0142

 3.6 JNCD  Good

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts  3.5 to 7.0 JNCD are Good.

Green Primary Color Shift

at a 30 degree Viewing Angle

Medium Color Shift

Δ(u’v’) = 0.0150

 3.7 JNCD  Good

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts  3.5 to 7.0 JNCD are Good.

Blue Primary Color Shift

at a 30 degree Viewing Angle

Medium Color Shift

Δ(u’v’) = 0.0182

 4.6 JNCD  Good

JNCD is a Just Noticeable Color Difference.

See Figure 2 for the definition of JNCD.

Color Shifts  3.5 to 7.0 JNCD are Good.

Color Shifts for Color Mixtures

at a 30 degree Viewing Angle

Reference Brown (255, 128, 0)

 Small Color Shift

Δ(u’v’) = 0.0053

1.3 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 iPhone 14 Pro Max including the Night Shift mode are measured in Figure 5 below.

The Night Shift 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.

The White Point can Shift down to a Warm 2,700 K White Point.

The measured display spectra for several of the Night Shift settings are included in Figure 5b.