Re:Can Dell’s 6K monitor beat their 8K monitor?
by vladvasiliu on Tuesday July 04, 2023 @05:03AM
(#36584078)
I'm familiar with the subpixel arrangement issues. My display is RGB, according to its specs and to some review I've seen before buying it (I made a point of avoiding "non-standard" panels). I only notice this with very thin fonts, since sometimes the vertical lines end up "in between" pixels.
I agree that at some point grayscale AA is good enough. But I've found that that point is at a higher DPI than I get on a 4k 32" screen. On my 24" 4k screen grayscale is good enough, so the limit is somewhere in between for me.
Are you talking about subpixel rendering?
Leveraging individual R G and B dots needs knowledge of the layout to achieve increased resolution, and the algorithm should be adjusting (best effort) to compensate for human colour perception with knowledge of the subpixel layout + subpixel size.
But usually it might be that the screen has a different layout than the OS picked, e.g RGB vs BGR, vertical vs horizontal, or it has a peculiar layout like RGBG. See down the page for an example when it doesn't match, which usually gives the perceptual effect you described https://www.grc.com/ctwhat.htm
At some point though I found with increasing DPI there's diminishing returns to go subpixel and it's simply easier and just as good to go grayscale AA and be done with it.