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Old 11-03-2022, 08:04 PM   #54
Quoth
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Quote:
Originally Posted by salamanderjuice View Post
16K is like 480ppi.
Depends on screen size.
A 65″ 4K screen is really poor DPI.
65″ 3840 x 2160 = 67.78 dpi, poorer than almost all 1990s CRTs!
Fine at family viewing distance with 1:27 movie like Ben Hur. Rubbish for reading glasses or normal text reading distance.

I may though have made some mistakes in the arithmetic. Certainly compared with 23″ 3840 x 2160 (AKA 4K) you'd need 10,852 x 6104 pixels, which I suppose might be called 11K.

23″ 3840 x 2160 = 191.56 dpi, not enough for HDPI setting.
65″ 7680 x 4320 = 135.56 dpi, typical 8K
65″ 10,852 x 6104 = 191.56 dpi dpi
So I think 16K would be about 15360 x 8640 = 271.13 dpi, good enough to turn off ClearType or similar.
480 dpi would allow HIDPI setting and need about 27192 x 15295 which marketing people might call 28K or 30K


Useful https://www.sven.de/dpi/ ?

Cinema has various different resolutions called 4K, 8K, 16K etc and the normal 4K, 8K 16K of domestic monitors are simply multiples of the 1920 x 1080 (HD or 2K) 2K may also refer to resolutions like 2048 × 1556 (full-aperture), 2048 × 1152 (HDTV, 16:9 aspect ratio) or 2048 × 872 pixels (Cinemascope, 2.35:1 aspect ratio).

There are 2560 x 1440 monitors. That should have been entry level HD. The 1440 x 720 is hardly HD and PCs often had 1600 x 1200 4:3 (common by 2002), till TV panels for 16:9 took over at 1920x 1080, few screens had 1920x1200.

4K = 3840 x 2160 (UHD or UHD-1)
8K = 7680×4320 (UHDTV-2)

There may not be a 16K spec.

Last edited by Quoth; 11-03-2022 at 08:06 PM.
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