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Originally Posted by NiLuJe
@j.p.s: Yeah, I'm wary of wording it that way, because we're really not (intentionally) displaying anything other than those specific 16 shades of gray. We're just tricking our brain into making it seem so.
The eInk tech itself happens to lend itself very well to the sort of pattern dithering produces, which certainly helps the illusion, too.
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To me, the connotation difference between effective and actual is illustrated by"
"Combining red light and green light effectively produces yellow light, but actually it does not." (Disregarding any language system which might define red light + green light as yellow light. Please assume for the purposes of this discussion that yellow light is strictly the range of
monochromatic light that stimulate the perception of yellow.)
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Note that, on crappy LCDs (older 7bpc+1, which did dithering on their own to fake 8bpc), you could actually detect banding on some gradients (or dithering artefacts/jitter, depending on how it was implemented).
The same thing is true today for cheap fakeish (8bpc+2) HDR displays. But HDR is a vastly more complex issue, so let's not go there (spoiler: it's a mess) ^^.
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Well, for some program material, I can see banding on my SDR OLED TV.