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Some users are noticing more blooming on the 12.9-inch iPad Pro's Liquid Retina XDR mini-LED display than expected, despite Apple's claims that the effect is minimized.

ipad-pro-xdr-display-blooming.jpg

According to recently published Apple Support documents, the iPad Pro's Liquid Retina XDR display is designed to improve on "the trade-offs of typical local dimming systems, where the extreme brightness of LEDs might cause a slight blooming effect," suggesting that the effect should be minimized.
The Liquid Retina XDR display improves upon the trade-offs of typical local dimming systems, where the extreme brightness of LEDs might cause a slight blooming effect because the LED zones are larger than the LCD pixel size. This display is designed to deliver crisp front-of-screen performance with its incredibly small custom mini-LED design, industry leading mini-LED density, large number of individually controlled local dimming zones, and custom optical films that shape the light while maintaining image fidelity and extreme brightness and contrast.
In spite of this, some iPad Pro owners are noticing more blooming than expected and highlighting their experience on social media.



Thanks to the adoption of mini-LED display technology, the iPad Pro features 2,500 local dimming zones. Local dimming allows some areas of an LED screen to dim almost off for darker, truer blacks, while preserving the bright parts of the screen. The technology can increase the contrast ratio of images significantly and enable the intense highlights of HDR content.

On a display with local dimming, if a zone is lit up and an adjacent zone is not, there may be an artifact toward the part of the screen that becomes brighter than its neighboring zone called "blooming."



OLED displays, such as those used on the iPhone 12 lineup, do not need local dimming since they are able to turn off individual pixels to achieve true blacks, all with no blooming effect. Local dimming can be a way to get near-OLED levels of picture quality, but it struggles to achieve the same level of contrast.

Blooming on the new 12.9-inch iPad Pro is therefore to be expected to some extent, but users seem to be divided about how bad the effect actually is.



Some MacRumors Editors experienced blooming with the 12.9-inch iPad Pro's XDR display, but others found that blooming was not noticeable at all.

Where blooming is visible, especially on HDR content with isolated bright shapes on a black background, it is most prominent on the iPad Pro when viewing the display from an off-axis angle and in a darkened environment. That being said, MacRumors Editors believe that the effect of blooming on the iPad Pro looks less severe in person than it does in images, likely due to exposure and image processing.

Although mini-LED display technology is expected to come to new MacBook Pro models later this year, other rumors suggest that the company is looking to use OLED displays for iPad and MacBook devices from 2022.

Article Link: Apple Says iPad Pro's XDR Display Designed to Minimize Blooming, but Some Users Still Notice the Effect
 
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Such a magical display!

It is really no better than the old displays other than the odd left field use case. Its a tiny step forward, really sideways as they wot stick with this tech, but not enough to justify the increased cost. Or buy a new ipad for it
 
This is the issue with local dimming. It's not great in a dark room because you can really tell the difference between "black with no backlight" and "black with backlight". Though no screen is ideal in a dark room, which is why even in professional color grading studios you have some dim lights all around the walls. Your eyes will adjust to a brighter environment and won't be so sensitive to the slight differences between dark shades. It's also not great for graphics or anything with very defined contours like text. It's best for films and photos. Usually on a studio monitor you'd never view interface or text, you'd only get a video signal straight to the monitor, so this issue hardly ever shows up. Not sure why Apple thought this tech would be suited for an iPad or any consumer device. It's fine for the Apple Pro display XDR because you're expected to use it mostly on video in a controlled environment. But not sure it's best for a device that displays a ton of graphics and text and is bound to be viewed in every random environment imaginable.
 
Are you people sure this isn't BS from android fanboys and girls? The tiny backlights are very tiny. To bleed like these pictures show into the blackness is strange.

And "de Nile" is a river in Egypt.

It is well documented on these Apple-centric forums and Apple just said it is normal because the dimming zones are bigger than the pixels.


That doesn't mean it is acceptable on an $1100+ device, but expected.
 
Are the MiniLED backlight "pixels" either fully on or fully off?

I wonder how this will affect white on black terminal windows if this tech comes to new iMacs or Macbooks. I use those all the time. If setting the background color to a very dark grey solves the issue it won't be as big a deal. :)
 
Every time a new Apple product comes out there is some gate that supposedly is the worst thing ever. How many people are noticing this using the iPad as they normally would? And is this a hardware issue or something that can be adjusted/minimized via a software update?
 
The picture in this article is such absolute BS. The display never looks nearly like this IRL. This looks like a severly overexposed image someone took to make the iPad look bad.

And yes, I do have the new 12.9 with me since friday. The screen is absolutely awesome and I see a very clear difference to my old 12.9 (2018), and not just with HDR content.
 
all those photos shown, are examples of the display running outside of the new API directive for min-LED… even the startup logo hasn’t been updated yet. Give it a few updates and that blooming will be for the most part gone. The edge dimming on the other hand is just part of the display tech. Overall Mini-LED is a good tech, this blooming is a solvable ”color recalibration” issue.
 
Wow. I was considering to add the 13“ iPad Pro to the household, but this is a deal-braker (although expected.)

Local Dimming is the first thing I turn off on a TV that has this feature. I was looking forward to a beefy iPad, but until it’s possible to turn local dimming off, it won’t be that one. (Currently using a first-generation 13“ iPad Pro with no local dimming and it’s a Great device).
 
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