Strobed Motion Blur Reduction Is Same As PWM (but good kind of PWM)

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Re: Strobed Motion Blur Reduction Is Same As PWM (but good kind of PWM)

Post by Chief Blur Buster » 25 Feb 2023, 13:51

du57in wrote:
16 Feb 2023, 16:03
I have a question about this (please feel free to delete or move if appropriate).

The new iPhone 14 is measured by some reviewers as having a 60Hz PWM rate with a 60Hz refresh rate. When those reviews were published, PWM sensitive users were furious that Apple went with such a low PWM refresh rate.

If I understand this correctly, this should actually be much better for PWM sensitive users as opposed to the non-synced rates of previous iPhones.
Interesting! The decision of framerate=Hz PWM is a tough decision, which is a pick-poison between PWM flicker and motion blur. Some people are more sensitive to motion blur, and some people are more sensitive to PWM.

Alternatively, it might be a confusion with the OLED brief black flicker (less than 5% refreshtime), which has no discernable effect in motionblur.

Are you able to tell me if there's some motion blur benchmarks with the iPhone 14? I have not been paying attention to iPhone 14's motion blur performance at various brightness settings, although I have been itching to buy an iPhone 14 Plus later this year.
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Joined: 16 Feb 2023, 15:55

Re: Strobed Motion Blur Reduction Is Same As PWM (but good kind of PWM)

Post by du57in » 26 Feb 2023, 12:32

Chief Blur Buster wrote:
25 Feb 2023, 13:51
du57in wrote:
16 Feb 2023, 16:03
I have a question about this (please feel free to delete or move if appropriate).

The new iPhone 14 is measured by some reviewers as having a 60Hz PWM rate with a 60Hz refresh rate. When those reviews were published, PWM sensitive users were furious that Apple went with such a low PWM refresh rate.

If I understand this correctly, this should actually be much better for PWM sensitive users as opposed to the non-synced rates of previous iPhones.
Interesting! The decision of framerate=Hz PWM is a tough decision, which is a pick-poison between PWM flicker and motion blur. Some people are more sensitive to motion blur, and some people are more sensitive to PWM.

Alternatively, it might be a confusion with the OLED brief black flicker (less than 5% refreshtime), which has no discernable effect in motionblur.

Are you able to tell me if there's some motion blur benchmarks with the iPhone 14? I have not been paying attention to iPhone 14's motion blur performance at various brightness settings, although I have been itching to buy an iPhone 14 Plus later this year.
The two best, which appear lacking, are probably these two:

https://www.notebookcheck.net/Apple-iPh ... 760.0.html

https://www.dxomark.com/apple-iphone-14-display-test/

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Chief Blur Buster
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Posts: 11647
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Re: Strobed Motion Blur Reduction Is Same As PWM (but good kind of PWM)

Post by Chief Blur Buster » 26 Feb 2023, 15:10

du57in wrote:
26 Feb 2023, 12:32
The two best, which appear lacking, are probably these two:

https://www.notebookcheck.net/Apple-iPh ... 760.0.html

https://www.dxomark.com/apple-iphone-14-display-test/
Thank you!

I guess I will find out when I get an iPhone 14 Plus later this year to upgrade my old phone.
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter

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Forum Rules wrote:  1. Rule #1: Be Nice. This is published forum rule #1. Even To Newbies & People You Disagree With!
  2. Please report rule violations If you see a post that violates forum rules, then report the post.
  3. ALWAYS respect indie testers here. See how indies are bootstrapping Blur Busters research!

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