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A comment on 8K is now being broadcast in Japan. Parent comment

Re:8K is now being broadcast in Japan by jjeaff on Saturday December 01, 2018 @02:55PM (#18578570)
Right, but the size of the screen is irrelevant if you don't also take into account the distance you sit from that screen.

An 8k 360 degree immersive environment might not be quite enough resulution to get fine detail if you were looking at it through a VR headset.

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Re:8K is now being broadcast in Japan by hunter2_ on Saturday December 01, 2018 @03:08PM (#18578632)
I think the short way to say this is viewing angle. If you're seated where the angle between one edge and the opposite edge is more than a typical situation, then you'll want more than typical DPI and thus resolution.

One rule if thumb I recall hearing is that the TV diagonal size should be about 1/3 to 1/2 the viewing distance. I'd need to brush up on my trig to get degrees from that.

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