If we can make 4K resolution phone screen, why can’t we “stack” those smaller screens to make a much higher resolution tv screen?
In: Technology
Nothing is *technically* stopping that from being done. However, there’s little reason to do so.
I’d have to look it up again as I don’t remember the exact figures, but due to limitations of the human eye there is a maximum resolution we *need* to achieve the best possible quality of a screen (in terms of resolution).
As a rough example, for a phone that’s 6-12″ from your face 4k (or maybe even higher) is pretty close to that limit. If you move it 8ft away (such as with a tv) you only need 8k over a full 50″ TV or so to reach that same limit. So if you were to pack a 50″ TV with pixel density equal to a 4k smart phone, you would have to sit with your face about a foot away from that TV to make the jump to 8k noticeable.
In short, the *farther* something is from your face, the less detail it needs to look maximum quality because your eyes aren’t physically capable of picking out the same level of detail at 1ft as they are at 8ft. So, you could make a 50″ TV at some absurd resolution with the same pixel density as a smart phone, but you could also make one with 1/10th the pixel density (and price!) and at typical viewing distances nobody would be able to see a difference in them.
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