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Some new M4 iPad Pro models are exhibiting a visible static grain pattern across the OLED display, according to several user reports on Reddit (1, 2, 3) and the MacRumors Forums.

oled-m4-ipad-pro-grainy-display-reports.jpg
Image credit: MacRumors user bk215

Users who see the grain generally report that it is most noticeable in dark environments with the display set at a low to medium brightness while viewing content with gray or muted colors. Some have compared the effect to a photo taken on a high ISO setting that has visual noise.

Whether this is a genuine display defect is hard to say at this point. OLED displays in general can exhibit a visual grain or a "screen-door effect" due to several factors related to the design and manufacturing process.

The individual sub-pixels in OLED displays can vary in size and shape, contributing to an inconsistent, uneven texture or graininess. This is usually more noticeable on larger displays. Variations in the deposition of organic materials can also affect the uniformity of light emission.

OLED displays also control brightness at the pixel level, and power management techniques can lead to minor variations in brightness across the screen. This is sometimes noticeable as a grainy effect, particularly in low-light conditions or when displaying uniform colors.

Notably, there were similar reports of grainy screens on Samsung Galaxy S24 Ultra smartphones.

Samsung supplies the displays for Apple's 11-inch M4 iPad Pro model, while LG Display supplies the panels for the 13-inch model. According to a March report out of Korea, Samsung faced poor yields of the 11-inch panels, and was unable to meet Apple's order quantity. The shortfall led Apple to transfer some orders for the smaller panel to LG Display.

grain-effect-oled-ipad-pro.jpeg
Image credit: Reddit user Vingdoloras

So far most reports relate to the 11-inch iPad Pro, but there are one or two that reference the 13-inch model, so it is unclear if the potential defect – if it is indeed one – is specific to one OLED panel supplier. The reports appear to be limited to new iPad Pro models with the Standard glass option. Apple's latest iPad Pro models are also available with a matte nano-texture display option for 1TB and 2TB storage configurations at an additional cost of $100.

Note that these reports are unrelated to a known issue we covered earlier in the week that involved blown-out colors when viewing certain HDR content on M4 iPad Pro models.

Article Link: OLED iPad Pro Users Report 'Grainy' Displays, But It May Not Be a Defect
 
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TracerAnalog

macrumors 6502a
Nov 7, 2012
673
1,237
No grain in my iPad. Not saying the issue isn’t real, but the provided picture means nothing. It is typically what you see if you take a picture of an OLED/LCD screen with your phone. It’s a moire effect caused by the resolution of the camera sensor versus the resolution of the screen.

/edit: I saw some better pictures without moire and indeed saw the graininess. It sucks, but I’m pretty sure Apple will replace your iPad for a new one if that happened to you.
 
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MrGimper

macrumors G3
Sep 22, 2012
8,687
12,264
Andover, UK
I'm sure something like this was reported with the Apple Watch Series 4. Was wrapped up in the "backlight bleed" phenomenon (which looked like backlight bleed, but wasn't actually backlight bleed as OLEDs don't have a backlight obviously)
 
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Dj64Mk7

macrumors 65816
Sep 15, 2013
1,349
664
That looks terrible and unacceptable. That is distracting.
I think I might just be sensitive to it, but I noticed it way back in November 2018 on the iPhone XS Max (and every iPhone I’ve had with OLDED since), in 2021 with both a 65 inch LG CX and a 55 inch LG C1 (although mostly the C1), and now in 2024 with the 11 inch iPad Pro. It’s actually one of the first things I notice when I look at OLED screens.

I’m not sure if it’s a possible cause of the headaches and eye strain I’ve had, but it’s something I’ve noticed.
 

McWetty

macrumors regular
Oct 7, 2011
248
1,138
New tech always has hurdles. The hope is that Apple will cover it under warranty or allow an extended return window.
 
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Jim Lahey

macrumors 68030
Apr 8, 2014
2,673
5,478
I'm more interested in grayscale uniformity across the panel after 3+ years of heavy use. We only have sketchy claims of this tech's ability to maintain durability while simultaneously pumping out a thousand nits day after day. The proof of the pudding is in the eating. Call me in 2027 👍
 

Onelifenofear

macrumors 6502a
Feb 20, 2019
737
1,406
London
OK... so this is the same as the Samsung Ultra issue. The sub pixels RGB are not uniformly dimming.

As you dim them down... the Reds dim more to black then the Greens and the Blue, which are still quite bright so you are seeing those more than the R+Gs creating a pattern.

SOME oled TV's will do the same if you have at at below 40% Brightness.

It's fixable via firmware. It will be the Software > Screen Driver needing tuning for the different screens. Not a big deal I am sure... but let's see how much fist waving and huffing and puffing appears online.

 

tomchr9

macrumors member
Apr 10, 2024
59
121
It looks like a screen-door effect due to the rear OLED panel providing backlight in the tandem display. Just as mentioned with LGs WOLED.
 

eltoslightfoot

macrumors 68020
Feb 25, 2011
2,345
2,841
OK... so this is the same as the Samsung Ultra issue. The sub pixels RGB are not uniformly dimming.

As you dim them down... the Reds dim more to black then the Greens and the Blue, which are still quite bright so you are seeing those more than the R+Gs creating a pattern.

SOME oled TV's will do the same if you have at at below 40% Brightness.

It's fixable via firmware. It will be the Software > Screen Driver needing tuning for the different screens. Not a big deal I am sure... but let's see how much fist waving and huffing and puffing appears online.

Well, to be fair, if it is fixable via firmware, then they need to actually do this fix before I would be happy given the cost. I would definitely "huff and puff" as you put it until it is actually in place.

It would be different if the device was a couple hundred bucks instead of $999 or $1299.
 
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