Originally Posted by DisplayCalNoob
The difference in what we see once we get to 12 bit panels, isn't what we assume or think. Its not particularly better color, but a few things that exist in areas we usually associate with resolution, and bit rate.
We get what Dolby has always advertised as a strength of HDR and more specifically Dolby Vision. Better pixels, or fine detail. A life like image quality level of detail. More color, means more detail.
Accompany that with higher peak nit displays, there is a level of depth and sharpness you want find on a 10 bit panel comes very close.
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Fine detail requires contrast between pixels, meaning RGB values are going to be significantly apart from each other, so higher bit depth doesn't improve that. High bit depth only improves areas where the RGB values are very close to each other.
Honestly accurate fine detail can be achieved with even 8bit HDR. For example, I was editing an HDR project but because of the editing environment I had to send the signal to my TV clamped to 8bit. For the most part, there wasn't a significant difference compared to 10bit. All detail and noise looked the same. Most colors looked the same. Highlights looked the same. Shadows looked the same. The only areas that looked different compared to 10bit were the areas with longer, smoother gradients between colors, like the sky, or a character's skin, or a plain floor. There you would see banding or inaccuracy in color, but even then, it wasn't a significant difference. It was like a really subtle band shifted slightly pink or something. Barely there. With 10bit, there's no evidence of anything like that. No banding, no inaccuracy in color, etc. Everything looks perfect. So I don't see how that can be improved upon. I genuinely think 12bit is beyond what we're capable of seeing. Much like 8k would be in nearly all cases.
As for brighter displays, the EOTF has the same sensitivity to bright and dark as our eyes do, so there would be no difference with brighter panels.
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