So the biggest question for many of us is whether or not the new iPhone XR uses PWM or DC to dim its LCD screen. Has there been any news to this effect now that it has been available for a couple of days?
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iPhone XR PWM or DC? Any News?
- Thread starter Lawney
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zx128k
macrumors regular
No PWM. Confirmed by https://www.notebookcheck.com and many people on here doing their own tests.
It is when we are talking about Apple LCD vs Apple OLED. Apple has never used it on their lcd displays and it wouldn’t change now over a decade later
Are we talking about HTC here or an Apple product? An Apple product I think ? If so why would it matter if a HTC M8 ( chose a random LCD display phone that isn’t made by Apple with no knowledge of if it has it or not ) uses it or not ? It doesn’t matter since Apple has never done it and as such why would the XR has it ...
zx128k
macrumors regular
I think they use high frequency PWM on the MacBook/MacBook Pro’s LCD’s at lower brightness settings.
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Yep I believe that’s true, too.
https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartphones-and-Tablets-with-PWM.163979.0.html
https://forums.macrumors.com/threads/does-the-macbook-pro-uses-pwm.2037667/
Although this one place said the 2017 15” doesn’t:
https://laptopmedia.com/highlights/...any-unnecessary-strain-on-your-eyes-pwm-free/
user1234
macrumors 6502a
The iMac Pro also uses PWM below 50% brightness. As low as 208 Hz.
https://www.notebookcheck.net/Apple-iMac-Pro-Xeon-W-2140B-Radeon-Pro-Vega-56-Review.313558.0.html
https://www.notebookcheck.net/Apple-iMac-Pro-Xeon-W-2140B-Radeon-Pro-Vega-56-Review.313558.0.html