It is double the resolution, because resolution is expressed as an x,y pair. It is 4 times the pixel density for the same screen size.
Comment on 4k is not 2160p - heard it here first!
SaltySalamander@kbin.social 10 months agoUHD features a 16:9 aspect ratio and is twice the resolution of full HD
Heh, no. 4k is exactly four times the resolution of 1080p.
WestwardWinds@lemmy.world 10 months ago
ricdeh@lemmy.world 10 months ago
Actually, display resolution refers to exactly what you call pixel density, and NOT the pixel dimensions. This error is so common that the term resolution has practically been redefined outside of the professional (science and engineering) space, but technically, display resolution and pixel density are the same thing.
Strangle@lemmy.world 10 months ago
1920 x 2 = 3840 (4K UHD)
That’s what he’s talking about.
newthrowaway20@lemmy.world 10 months ago
Yeah but that would only be an increase in the horizontal resolution… you’d have 3840 x 1080.
So you gotta double the verticall resolution too, which means you’ve now doubled both horizontal and vertical resolutions, which is equal to 4 times the initial resolution