Eli5 Why do 4k videos look better than 1080p on a 1080p screen?
In: Technology
For the same reason that resolution supersampling will lead to a better visual experience in a game despite running at the same on-screen resolution.
When you render a game at, say, 4K, but display it on a 1080p screen, there is more “data” for the output device to use in determining what the final image should look like-in fact, there is 4x the amount of data. Using some processing trickery, the output device and the display can generate a superior 1080p image.
Even more basically, it’s exactly the reverse of the reason why 480p looks so much worse on a high-resolution screen than it does on a really old CRT or ancient LCD panel.
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