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A comment on Display brighter-than-white color on Apple devices. Parent comment

Re:Display brighter-than-white color on Apple devices by fifafu on Monday June 19, 2023 @07:56AM (#36390006)
It does not apply any dark overlay, at least not on HDR screens, it just looks like it does due to the big difference in brightness.

I would assume the iPad Air 4 doesn't have a HDR screen, but maybe I'm wrong. On HDR capable screens you should still see a huge difference even on maximum brightness.

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Re:Display brighter-than-white color on Apple devices by treecle on Monday June 19, 2023 @08:05AM (#36390088)
Apple does some trickery to display HDR on non HDR Apple displays. Look up EDR.
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Re:Display brighter-than-white color on Apple devices by AlanYx on Monday June 19, 2023 @09:50AM (#36391077)
On some post-2017 non-HDR Apple displays, the OS actually dynamically adjusts the screen's gamma curve to simulate this effect. On machines that support this, if you hold Option down while opening the Display control panel, there's an additional option that appears to enable/disable this.
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