No Stupid Questions

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How come when you look at the pixels on some tvs they're all split into the same red green blue but then it changes to the actual picture as you back away zooming out, what sorcery is this? (lemmy.world)

submitted 20 hours ago by [email protected] to c/[email protected]

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[–] [email protected] 10 points 19 hours ago* (last edited 11 hours ago)

Your eye can only resolve points at beyond a certain arc angle, below which two close points of light appear as a single point. It's to do with the spacing between the photoreceptors in your eye (they are individual units that act as a single eye, not a single sensor, i.e. your eye has a resolution of its own), the wavelength of the light coming in, and some neurological stuff. Physics and biology.

Edit: wanted to add that all color TV's are made of a matrix of three color elements, usually with 2x the number of green versus red and blue. If it looks like it's one color, then there's usually a diffuser in the way, or you need to get in closer.