iPhone 11 Pro iPhone 11 Pro (Max) - PWM - Eye Strain

seaw

macrumors member
Original poster
Jun 15, 2012
87
8
Hi,

whoever gets his new iPhone 11 Pro first... Could you be so kind and check how the new phones handle dimming the OLED display? I would love to buy one of the new phones but I tested the X and the XS and both gave me headaches.

Thanks
 

waquzy

macrumors 6502a
Sep 9, 2013
830
896
Leicestershire, UK
Hi,

whoever gets his new iPhone 11 Pro first... Could you be so kind and check how the new phones handle dimming the OLED display? I would love to buy one of the new phones but I tested the X and the XS and both gave me headaches.

Thanks
Most likely its gonna be the same problem with the PWM as the displays are pretty much the same
 

McTaste

macrumors regular
Jan 21, 2014
241
429
You can get the display pretty dim using the Accessibility trick, but it is still much brighter than the non oled displays.
 

Matt91uk

macrumors newbie
Sep 17, 2019
2
0
To be fair this year the story is much better for people sensitive to the PWM on iPhones as the 11 is not far off the pro, from what I can see you sacrifice a telephoto camera and 2gb RAM vs the pro and not a great deal else.
 

madKIR

macrumors 6502a
Feb 2, 2010
849
780
NYC
To be fair this year the story is much better for people sensitive to the PWM on iPhones as the 11 is not far off the pro, from what I can see you sacrifice a telephoto camera and 2gb RAM vs the pro and not a great deal else.
They all have 4 Gigs of RAM. You also sacrifice the data speeds since the 11 is only MIMO2 vs MIMO4 in the Pro models.
 
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Matt91uk

macrumors newbie
Sep 17, 2019
2
0
They all have 4 Gigs of RAM. You also sacrifice the data speeds since the 11 is only MIMO2 vs MIMO4 in the Pro models.
I thought the pro models had 6gb for some reason! Well even more reason why the 11 is a great option with little compromise for people sensitive to pwm. Just a shame that the screen is not quite full hd!
 

TDDM

macrumors 6502
Nov 25, 2017
262
329
KA
Is there any Amoled that can do brightness control other way than pwm?
Honestly, PWM isn’t necessarily bad. For example, Macbooks have PWM and no one has any issues with it (For the most part). The difference is that the Macbooks have PWM with Hz rates of 100,000+, while most phones seem to hover around 240Hz. I really hope that Apple increases the Hz rate before they switch to an all OLED lineup.
 

TDDM

macrumors 6502
Nov 25, 2017
262
329
KA
Is there any way to keep the flicker above a certain less irritating level and still use the phone without headaches?
Unfortunately, the OLED iPhones always have flicker, even at full brightness.
 

Maven1975

macrumors 6502a
Aug 24, 2008
884
108
Well... at least we can watch their new show “See”

Great job being ignorant when it comes to eye health Apple.
 
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shinyleaf

macrumors newbie
Nov 7, 2016
8
15
Hi,

whoever gets his new iPhone 11 Pro first... Could you be so kind and check how the new phones handle dimming the OLED display? I would love to buy one of the new phones but I tested the X and the XS and both gave me headaches.

Thanks
There's a bit of mitigation possible to minimize the effect of PWM:

The way Apple use PWM on X, XS, and probably 11 Pro, it only use the flicker between 0-50% brightness. From 51-100% it doesn't use PWM. As long as the display brightness is above 50%, PWM isn't in use.

Now you probably don't want the display that bright all the time. Luckily you can use the Reduce White Point option in Settings -> Accessibility -> Display Accommodation to make the screen less bright. This feature on OLED screens, which doesn't have a backlight, will dim the display by the amount set on the accessibility slider.
 

TDDM

macrumors 6502
Nov 25, 2017
262
329
KA
There's a bit of mitigation possible to minimize the effect of PWM:

The way Apple use PWM on X, XS, and probably 11 Pro, it only use the flicker between 0-50% brightness. From 51-100% it doesn't use PWM. As long as the display brightness is above 50%, PWM isn't in use.

Now you probably don't want the display that bright all the time. Luckily you can use the Reduce White Point option in Settings -> Accessibility -> Display Accommodation to make the screen less bright. This feature on OLED screens, which doesn't have a backlight, will dim the display by the amount set on the accessibility slider.
This doesn't work, iPhones have PWM at all brightness levels.
 

spooky23

macrumors 6502a
Jan 11, 2013
523
304
Epping
Daft question klaxon.

Is this flicker something that some people are able to see or is it a...er...invisible annoyance?

To clarify invisible, I mean it can cause headaches even though the flickering isn't necessarily visible during usage.
 

jonnyb098

macrumors 68030
Nov 16, 2010
2,769
1,980
Michigan
Daft question klaxon.

Is this flicker something that some people are able to see or is it a...er...invisible annoyance?

To clarify invisible, I mean it can cause headaches even though the flickering isn't necessarily visible during usage.
Yes it causes headaches even if it isnt "visible". I remember playing with an iPhone X for about 20 minutes in the store and wondered why my head felt funny after.

This issue affect approx. 10 percent of people so its not a HUGE issue but its significant enough that people are now aware of it.
 

newellj

macrumors 604
Oct 15, 2014
7,539
2,492
East of Eden
It's likely to be the same as the X/XS or so close as not to matter. If it bothers you, you probably need to go with the 11, not the 11 Pro. :(
 

spooky23

macrumors 6502a
Jan 11, 2013
523
304
Epping
Yes it causes headaches even if it isnt "visible". I remember playing with an iPhone X for about 20 minutes in the store and wondered why my head felt funny after.

This issue affect approx. 10 percent of people so its not a HUGE issue but its significant enough that people are now aware of it.
Cheers fella. Not had issues with OLED in tv's but that's a touch different from a handheld device. Here's hoping I'm not part of the 10%.

Never had an issue using the X (family members own it).