3 ms·
It's 4k because it's an HD resolution (1080) doubled horizontally and vertically. If this is HD: ┏━━━━┓ ┃ ┃ ┗━━━━┛ Then 4 of these tiled b
by athenot 6y ago
It's 4k because it's an HD resolution (1080) doubled horizontally and vertically.
If this is HD:
┏━━━━┓
┃ ┃
┗━━━━┛
Then 4 of these tiled become 4k:
┏━━━━┳━━━━┓
┃ ┃ ┃
┣━━━━╋━━━━┫
┃ ┃ ┃
┗━━━━┻━━━━┛
I used to have 4 separate HD monitors laid out horizontally on my desk, and in terms of pixel realestate, a 4k effectively replaces them... until retina/high density displays became affordable. Now my 5k monitor is effectively the realestate of 4 HD monitors, but nice and smooth.
- dheera 6y agoNo, it's 4K because it's approximately 4000 (actually 3840) pixels in the horizontal dimension. It has nothing to do with 4 times 1080p. 640x480 ("480p" <-- vertical) 1280x720 ("720p" <-- vertical) 1920x1080 ("1080p" <-- vertical) 3840x2160 ("4K" <-- they marketing departments suddenly started measuring horizontal)
- Tijdreiziger 6y ago4K is the marketing term, i.e.: 4K > Full HD > HD > SD (marketing terms) 2160p/i > 1080p/i > 720p/ > 480p/i / 576p/i (resolutions)
- kalleboo 6y ago640x480 (VGA), 800x600 (SVGA), etc came from the computer industry since they had 4:3 CRTs 720p, 1080p came from the TV industry since they always counted video in "lines" (NTSC is 525 lines) 4K came from the movie industry (the 2005 Digital Cinema specification), since movies have wildly different aspect ratios so counting the vertical doesn't make sense (specifically, it's very rare for movies to be 16:9!)
- jandrese 6y agoIf that were the case wouldn't it be called 4x instead of 4k?