Yes. It’s only a few Hz more than the old ones. Still flickering a lot.
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Other Eye-strain while using iPhone X and up
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Right, that's what I said. Carriers charge restocking fees. I gave up dealing with VZW years ago and nothing I've heard here leads me to believe that any of the others are any easier to deal with.
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Yes, in the hundreds of thousands (>200KHz?) IIRC.
Will reiterate what I stated earlier in the thread. People having this problem should get their eyes tested too. Some confuse the strain they are experiencing as being sourced from PWM, when it can actually be strain from extended periods of focusing too close.
I had an extensive test done by my eye doctor to see what was causing my strain, it turned out to be caused by extended periods of close focus, not the refresh rate of my device. I now try to wear computer glasses when I am on my phone (or laptop) for extended periods of time. My close focus has gotten better overall (even without glasses), and I don't get strain or headaches.
Sure PWM impacts people, many of them, but don't rule out other causes for your eye strain or headaches. If you are Near-sighted, try taking off your corrective lenses when using your phone, you are working your eyes much harder than you need to, as they need to overcome the correction, plus the close focus in that situation.
Just food for thought.
I had an extensive test done by my eye doctor to see what was causing my strain, it turned out to be caused by extended periods of close focus, not the refresh rate of my device. I now try to wear computer glasses when I am on my phone (or laptop) for extended periods of time. My close focus has gotten better overall (even without glasses), and I don't get strain or headaches.
Sure PWM impacts people, many of them, but don't rule out other causes for your eye strain or headaches. If you are Near-sighted, try taking off your corrective lenses when using your phone, you are working your eyes much harder than you need to, as they need to overcome the correction, plus the close focus in that situation.
Just food for thought.
This COULD be true, but if you can focus fine on any phone besides an oled iPhone, the odds are very high it's the phone.
Last year my Max drove me crazy, but I owned 2 Android OLED at the time that didn't give me any issues. Returned the max and haven't had a headache since.
Good point! I definitely support annual eye exams, regardless of our PWM conversation.
I don't mess around with my eyes, which is why if I have a choice, I'm going to use a phone that doesn't rapidly flash the backlight on and off.
I don't mess around with my eyes, which is why if I have a choice, I'm going to use a phone that doesn't rapidly flash the backlight on and off.
Thanks for posting this.
For those that may not be aware, he is a YouTube tech reviewer who had experienced eye strain issues on the iPhone X.
The fact that he is not having the same issues with the iPhone 11P is a good sign and very relevant here.
https://www.notebookcheck.com/Test-...ie-vielen-Detail-Verbesserungen.434752.0.html
So this review says 245 hz instead Of the other notebook check review that says 290.7 hz for PWM???? So confused
So this review says 245 hz instead Of the other notebook check review that says 290.7 hz for PWM???? So confused
Btw, when you mentioned seizure migraines in another post, yikes, what does that mean exactly??
It's good for him that he can now use Apples OLED but he's ignoring the full detail mentioned in review:
“the iPhone 11 Pro uses pulse width modulation (PWM) to control display brightness. The panel in our review unit flickers at between 60 and 290.7 Hz, which is rather unusual. By contrast, most OLED panels flicker at one frequency.”
This suggests the display flickers more which is my experience as my eyes started to hurt very quickly.
Well there’s a wide variety of kinds and severity I can get, depending on the trigger. But that’s way off topic for this thread. The kind I got with an iPhone caused the part of my brain that controls speech to go haywire, and I had a little trouble controlling my hands. I can’t remember which one but one side was more unresponsive than the other.
So basically it looks like I’ve had a stroke of some kind. The one I got from the iPhone impacted my speech and motor control less than a day but I was hypersensitive to all pwm for about a month.
It sounds horrible to get that kind of migraine, but it’s been an informative experience that oddly enough enriched my connection to other people (more long off-topicness). But that doesn’t mean I want to get more of them! I’m really thrilled I get along well with my new iPhone.
You’ll find lots of threads on there about eye strain on the oled screens. Something to with with PWM. It actually flickers at a high rate, some people notice it. Some don’t. LCD’s seems to not have this issue.
can someone tell us what did the guy do on the screens ?? he used a measurement but I don't know to measure what ???
check it here at 13:15
check it here at 13:15
Yes I mentioned earlier in this thread that the original review was bogus as they misread their own graph. It clearly shows slower than 290hz if you measure it yourself, but they wrote the 290 anyway. Sloppy.
Also this goes to show how much this issue is placebo induced that merely the (erroneous) suggestion that apple increased the PWM speed has people left, right and centre deciding that they no longer experience eyestrain and they shall keep their new phones.
It is interesting that people like Zollotech who have reported on PWM before any press really touched the subject, who also suffered with the PWM on earlier OLED iPhones, is now saying the Pro Max isn't bothering him at all. Maybe whiles he's been reviewing it the phone is on very high brightness so he's not noticing it as much?
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That‘s definitely strange, since their graph for the regular Pro says 290hz. Could the Pro vs Pro Max have different Hz implementations?
I’m not sure what to think, since the Pro review has it at 290hz, while the Pro Max is at 245hz apparently. They either made a mistake with one of the numbers, or the two models have differing Hz rates.
Thank you. Scary that a phone display can trigger that.
Can you see that the original review graph is not measuring zero crossing to zero crossing? It is measuring inaccurately shorter than that and coming up with the 290hz figure. It is clearly a mistake but for some reason they don't care enough to notice.
Well we can never rule out the placebo effect. That certainly is a phenomenon.
But to once again rehash something that appears every few pages through this thread: Many of us who could not use previous year’s iPhones could still use the Samsung displays on Android phones.
They all have pwm. So it isn’t just pwm that was/is a factor. Apple had a special implementation of it. It’s hard to find the information. It doesn’t appear very often. I had a link to it buried somewhere deep in the pages of this monster thread. I’m not quite technically proficient enough to try and explain it off the top of my head but from what I recall they had a way to custom control the lighting of the sub pixels to meet their exacting standards for color and power consumption.
This year, the leaks reported that Samsung refined a display that was so good it met Apple’s standards and originally it was reported that they were going to use it as-is. That is the display that is used on the Note10+. (I’ve been comfortable on Samsung Galaxy displays since the S8). I had presumed that meant they’d use it exactly as it is on the Note 10+. That’s one of the reasons I decided to take a chance on it this year despite getting made pretty sick last year by my XS Max display.
But on Apple’s site, they say they do still have customized displays. They probably are less heavy handed with their tweaking, which is why some of us are able to use the new displays.
But they still have enough customization that it still leaves out a few people. At least one of them said he can use the non customized Samsung displays, but still finds the new IPhone ones uncomfortable.
I still find my Note 10+ display more comfortable. If I use my new iPhone too long I will need to take a break sooner than I would on a Note and give my eyes a rest. If they truly had used the Note 10+ display without any of their custom tinkering I don’t think I’d notice that difference. So, there’s room for improvement. But they changed something just enough to get me back in the game.
It's weird with the PWM, NBC said it was higher at 290 hz however that review says that the frequency is irregular and ranges between 60 and 290.7 hz, also the NBC review for the pro max says 245 hz pwm and the regular pro says 290.7 hz, So very strange and inconsistent, links down below:
https://www.notebookcheck.com/Test-...-mehr-Power-auf-den-Handy-Olymp.434956.0.html
https://www.notebookcheck.com/Test-...ie-vielen-Detail-Verbesserungen.434752.0.html
https://www.notebookcheck.com/Test-...-mehr-Power-auf-den-Handy-Olymp.434956.0.html
https://www.notebookcheck.com/Test-...ie-vielen-Detail-Verbesserungen.434752.0.html
Variables:
“I still get eye strain.”
“I think I’m not getting eye strain now.”
Constants:
The iPhone 11 Pro still uses PWM. It still uses a frequency that is either identical to the last two years or only slightly higher. There’s no reason to believe if you had issues with previous OLED models that the latest will be any different. Everyone has their own experience, but based on the technical specifications there shouldn’t be any change in whether or not you are affected.
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It's almost as if people don't even read the responses just before them when they post here. This has now been repeated ad nauseum and so has the response.
The notebookcheck PWM thing is pretty odd. Does anyone have the regular iPhone Pro? I‘m curious if it actually does have 290hz. But then again, that zollotech guy who said he was no longer experiencing PWM symptoms was using the Pro Max, which apparently still has 245hz, kinda weird.