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grmlin

macrumors 65816
Feb 16, 2015
1,110
777
Oh. So the only "fix" in sight is a switch to OLED?

I prefer retina over mini-LED and I'm frankly glad I went for the smaller size because that seems... annoying.
The most promising replacement is Micro LED I think. It's basically like an oled where every pixel/color is a separate LED. Didn't announce Samsung some extremely expensive TVs using this tech recently? Maybe it's something normal people can buy in some years then.
 
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floral

macrumors 65816
Jan 12, 2023
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The most promising replacement is Micro LED I think. It's basically like an oled where every pixel/color is a separate LED. Didn't announce Samsung some extremely expensive TVs using this tech recently? Maybe it's something normal people can buy in some years then.
That sounds even cooler!
 

xxray

macrumors 68040
Jul 27, 2013
3,115
9,412
Oh. So the only "fix" in sight is a switch to OLED?

I prefer retina over mini-LED and I'm frankly glad I went for the smaller size because that seems... annoying.

I thought maybe there would be an improvement via a software update with the iPad because for how many mini-LED zones the display has, the blooming shouldn’t be as bad as it is and since Apple reduced blooming just months later with the MacBook Pros. However, it could just be that they’re fundamentally different mini-LED displays and Apple can’t improve the current iPad Pro panel with software any farther. If they haven’t done it so far, almost 2 years since release and with the new M2 model, I don’t see why they’d do it now.

I don’t really think there’s a fix to completely get rid of blooming on mini-LED displays though. The whole reason there is blooming is because the pixels are separated into zones that each have one backlight behind them. Blooming happens when just a small amount of pixels in that zone needs lit up, but since it can’t just light that one/few pixels only, the entire zone has the backlight turned on behind it. The reason OLED and micro-LED solves blooming is that each individual pixel has a backlight behind it. So an entire cluster/zone of pixels doesn’t need to be turned on for just one or a few pixels. Only the pixels that are supposed to have a backlight turned on will have it.

So, for example, your 11” iPad just has one big backlight for the entire screen. That’s why there’s no blooming but there’s no pure black pixels either. Every pixel always has the backlight turned on behind it. The 12.9” iPad Pro has ~10,000 zones/clusters of pixels with one backlight per zone. You can get pure black pixels if the entire zone is turned off, but if any pixel needs lit up in a zone, the entire zone must be turned on, leading to blooming. For OLED and micro-LED, each individual pixel has its own backlight, so no blooming.
 

fel10

macrumors 68020
Feb 2, 2010
2,295
3,550
Woodstock, GA USA
Do you also see the trailing behind text while scrolling on the iPad Pro? Most notcieable on a dark background. It seems to be a response time issue but causes eye strain for me.
I actually started that thread about the scrolling issue which the last update completely fixed it
 

floral

macrumors 65816
Jan 12, 2023
1,011
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Earth
I thought maybe there would be an improvement via a software update with the iPad because for how many mini-LED zones the display has, the blooming shouldn’t be as bad as it is and since Apple reduced blooming just months later with the MacBook Pros. However, it could just be that they’re fundamentally different mini-LED displays and Apple can’t improve the current iPad Pro panel with software any farther. If they haven’t done it so far, almost 2 years since release and with the new M2 model, I don’t see why they’d do it now.

I don’t really think there’s a fix to completely get rid of blooming on mini-LED displays though. The whole reason there is blooming is because the pixels are separated into zones that each have one backlight behind them. Blooming happens when just a small amount of pixels in that zone needs lit up, but since it can’t just light that one/few pixels only, the entire zone has the backlight turned on behind it. The reason OLED and micro-LED solves blooming is that each individual pixel has a backlight behind it. So an entire cluster/zone of pixels doesn’t need to be turned on for just one or a few pixels. Only the pixels that are supposed to have a backlight turned on will have it.

So, for example, your 11” iPad just has one big backlight for the entire screen. That’s why there’s no blooming but there’s no pure black pixels either. Every pixel always has the backlight turned on behind it. The 12.9” iPad Pro has ~10,000 zones/clusters of pixels with one backlight per zone. You can get pure black pixels if the entire zone is turned off, but if any pixel needs lit up in a zone, the entire zone must be turned on, leading to blooming. For OLED and micro-LED, each individual pixel has its own backlight, so no blooming.
So that's why I notice a very dark grey for the blacks and not.. actual blacks.
 

profcutter

macrumors 68000
Mar 28, 2019
1,550
1,296
Found it

The problem with microLED so far is that making smaller displays is more difficult because you have to make the LED emitters themselves smaller. Hence the huge price tags and the huge sizes for high res microLED displays. OLED has its trade offs, but it’s here now. One of the trade offs is longevity, but you’d think apple would be happy about that.
 
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VaruLV

macrumors 6502a
Mar 25, 2019
636
561
So, for example, your 11” iPad just has one big backlight for the entire screen. That’s why there’s no blooming but there’s no pure black pixels either. Every pixel always has the backlight turned on behind it. The 12.9” iPad Pro has ~10,000 zones/clusters of pixels with one backlight per zone. You can get pure black pixels if the entire zone is turned off, but if any pixel needs lit up in a zone, the entire zone must be turned on, leading to blooming. For OLED and micro-LED, each individual pixel has its own backlight, so no blooming.
Its 10k+ mini LED's(or "pixels" as you called them) in group of 4:
  • Liquid Retina XDR display
  • 12.9-inch (diagonal) mini-LED-backlit Multi‑Touch display with IPS technology
  • 2D backlighting system with 2,596 full‑array local dimming zones
Thus its not 10k dimming zones/cluster, for that in total would make it in excess of 40k mini LED's in that screen and dimming would probably be non issue even for the hardcore complainers here 😃!
 
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xxray

macrumors 68040
Jul 27, 2013
3,115
9,412
Its 10k+ mini LED's(or "pixels" as you called them) in group of 4:
  • Liquid Retina XDR display
  • 12.9-inch (diagonal) mini-LED-backlit Multi‑Touch display with IPS technology
  • 2D backlighting system with 2,596 full‑array local dimming zones
Thus its not 10k dimming zones/cluster, for that in total would make it in excess of 40k mini LED's in that screen and dimming would probably be non issue even for the hardcore complainers here 😃!

Thank you for the corrections.
 
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pdoherty

macrumors 65816
Dec 30, 2014
1,491
1,736
Not fixed and probably never will be. The mini-LED MacBook Pros have significantly less blooming than the mini-LED iPad Pros, but it’s still present. Even with the improvements on the MBP, I was watching an HDR show on it in the dark last week, and there was a night scene with a lot of flashing lights. It was comical how bad it looked due to the blooming, like you couldn’t even discern what was happening. This is likely one of the reasons Apple is expected to move to OLED for both the iPad Pros and MacBook Pros next year. Mini-LED is a stopgap between LCD and OLED.
They need microLED and skip everything in between. No idea when those are ready in small (phone and tablet) sizes though.
 

Radon87000

macrumors 604
Nov 29, 2013
7,777
6,255
Not fixed and probably never will be. The mini-LED MacBook Pros have significantly less blooming than the mini-LED iPad Pros, but it’s still present. Even with the improvements on the MBP, I was watching an HDR show on it in the dark last week, and there was a night scene with a lot of flashing lights. It was comical how bad it looked due to the blooming, like you couldn’t even discern what was happening. This is likely one of the reasons Apple is expected to move to OLED for both the iPad Pros and MacBook Pros next year. Mini-LED is a stopgap between LCD and OLED.
Reduced blooming comes at the cost of brightness. I don't own the MiniLED Macbook but if its having less bloom than the iPad, Apple likely went aggressive with the local dimming algorithm so it won't be as bright as the iPad in HDR.

IMO, MiniLED is a cost effective way of trying to match an LCD with the capabilities of OLED but it still doesn't lend itself naturally to HDR. OLED's per pixel dimming is crucial for good HDR
 

Unregistered 4U

macrumors G4
Jul 22, 2002
10,603
8,613
So that's why I notice a very dark grey for the blacks and not.. actual blacks.
After getting my new iPad, I pulled up my old one because I needed to make sure some files got copied over… and I had no idea how I didn’t notice how not-black the blacks on the old one was. It was such a stark difference.
 
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rkuo

macrumors 65816
Sep 25, 2010
1,308
955
I thought maybe there would be an improvement via a software update with the iPad because for how many mini-LED zones the display has, the blooming shouldn’t be as bad as it is and since Apple reduced blooming just months later with the MacBook Pros. However, it could just be that they’re fundamentally different mini-LED displays and Apple can’t improve the current iPad Pro panel with software any farther. If they haven’t done it so far, almost 2 years since release and with the new M2 model, I don’t see why they’d do it now.

I don’t really think there’s a fix to completely get rid of blooming on mini-LED displays though. The whole reason there is blooming is because the pixels are separated into zones that each have one backlight behind them. Blooming happens when just a small amount of pixels in that zone needs lit up, but since it can’t just light that one/few pixels only, the entire zone has the backlight turned on behind it. The reason OLED and micro-LED solves blooming is that each individual pixel has a backlight behind it. So an entire cluster/zone of pixels doesn’t need to be turned on for just one or a few pixels. Only the pixels that are supposed to have a backlight turned on will have it.

So, for example, your 11” iPad just has one big backlight for the entire screen. That’s why there’s no blooming but there’s no pure black pixels either. Every pixel always has the backlight turned on behind it. The 12.9” iPad Pro has ~10,000 zones/clusters of pixels with one backlight per zone. You can get pure black pixels if the entire zone is turned off, but if any pixel needs lit up in a zone, the entire zone must be turned on, leading to blooming. For OLED and micro-LED, each individual pixel has its own backlight, so no blooming.
Yes ... and to reiterate, on LED TV's with local dimming, the trick to mitigate perceived blooming is to use bias lighting to raise the light floor in the room a bit above pitch black. The same applies to the iPad. Even movie theaters are not pitch black. If you absolutely must use the iPad in pitch black darkness with a movie or an app that is prone to blooming, then oh well ... that's how the tech works.
 

Radon87000

macrumors 604
Nov 29, 2013
7,777
6,255
After getting my new iPad, I pulled up my old one because I needed to make sure some files got copied over… and I had no idea how I didn’t notice how not-black the blacks on the old one was. It was such a stark difference.
The difference is even more stark when you move to OLED from MiniLED. You start to notice the flawed blooming on the MiniLED more as the OLED is pitch black.
 

grmlin

macrumors 65816
Feb 16, 2015
1,110
777
The difference is even more stark when you move to OLED from MiniLED. You start to notice the flawed blooming on the MiniLED more as the OLED is pitch black.
I have an LG OLED TV and the iPad screen is still fantastic :) I just love the peak brightness watching movies/tv shows
 
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grmlin

macrumors 65816
Feb 16, 2015
1,110
777
Thread bump

am I imagining things or did Apple improve the dimming? It looks much better to me than ever, lying in darkness in bed. And I’m using mine (M1) since release day.
 

PinkyMacGodess

Suspended
Mar 7, 2007
10,271
6,227
Midwest America.
Thread bump

am I imagining things or did Apple improve the dimming? It looks much better to me than ever, lying in darkness in bed. And I’m using mine (M1) since release day.

I have the immediate predecessor to that model, and use my Mini more. That IPP hurts when it hits my nose.

But it also seems to be brighter than the mini. Is that what 'blooming' is?

EDIT: And with most of the images being 'old' at the beginning, I can't tell. Hmm...
 

WilliamG

macrumors G4
Mar 29, 2008
10,007
3,894
Seattle
Thread bump

am I imagining things or did Apple improve the dimming? It looks much better to me than ever, lying in darkness in bed. And I’m using mine (M1) since release day.
You're imagining it. I have the M2 12.9 now, and it's just as bad in certain scenarios as it's ever been, especially in near-black scenes in movies. The blooming can be horrendous.
 
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Ubele

macrumors 6502a
Mar 20, 2008
903
344
I thought it had improved, too, but I realized that I don’t watch my iPad in bed at night in total darkness as much as I used to. Seriously, I only noticed the blooming in white-on-black closing credits. I never noticed it with actual content. I’ve suffered from OCD in the past, and the blooming would have driven me crazy when I was younger. But now, the iPad Pro screen looks fabulous to me 99% of the time, especially when compared to my previous “regular” 2017 9.7” iPad, where the blacks we dark gray. If you need something to be 100% perfect under all viewing conditions… well, I don’t know what tablet to recommend. For me, I love my 2021 12.9” IPP!
 

someone33

macrumors member
Original poster
Sep 17, 2014
92
87
You're imagining it. I have the M2 12.9 now, and it's just as bad in certain scenarios as it's ever been, especially in near-black scenes in movies. The blooming can be horrendous.
It's too bad because it's really close to being about perfect. It seems like Sony is still the only company that has really nailed local dimming algorithms, everything else just has too many shortcomings.
 

grmlin

macrumors 65816
Feb 16, 2015
1,110
777
Still. It’s better than before. I use mine multiple times a week in bed with the wife sleeping next to me. Tried it again yesterday and it was still different.

Weird
 

madat42

macrumors 6502
Mar 25, 2011
326
128
Thread bump

am I imagining things or did Apple improve the dimming? It looks much better to me than ever, lying in darkness in bed. And I’m using mine (M1) since release day.
I was going to chime in here too and ask if others are also noticing an improved difference in blooming? I could have sworn I used to see pretty bad blooming - an almost white box around white text on black screen. I think the Apple TV+ logo would appear this way last month but not anymore. Did it change after the iOS 16.4.1 update?
 

WilliamG

macrumors G4
Mar 29, 2008
10,007
3,894
Seattle
I was going to chime in here too and ask if others are also noticing an improved difference in blooming? I could have sworn I used to see pretty bad blooming - an almost white box around white text on black screen. I think the Apple TV+ logo would appear this way last month but not anymore. Did it change after the iOS 16.4.1 update?
No, and no.
 

grmlin

macrumors 65816
Feb 16, 2015
1,110
777
I was going to chime in here too and ask if others are also noticing an improved difference in blooming? I could have sworn I used to see pretty bad blooming - an almost white box around white text on black screen. I think the Apple TV+ logo would appear this way last month but not anymore. Did it change after the iOS 16.4.1 update?
I don't know what they did, but something changed. I use it for almost two years now but content like the Apple TV logo definitely improved. The white boxes are less pronounced. The blooming is still there, of course, but it feels less intense.
 
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