techxplore[.]com/news/2025-10-ultra-hd-tv-worth-scientists.html
cl.cam.ac[.]uk/research/rainbow/projects/display_calc/
According to researchers at the University of Cambridge and Meta Reality Labs, the human eye has a resolution limit: in other words, there are only so many pixels the eye can see. Above this limit, a screen is giving our eyes more information than they can detect.
Now matter what kind of screen you're talking about, it doesn't do much if any good to have more resolution than you can actually see, and to that end the researchers have a calculator [2nd link] that you can plug your figures into, e.g., screen size, resolution, distance.