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] 6 points 19 hours ago* (last edited 19 hours ago)

So in the back of your eyeballs are special photo receptive bits called cones that you use to see color. There are three different kinds and they each detect red, green, or blue light. Using those three sets of wavelengths and the overlap between them your brain combines which cones are receiving light to make up all the other colors.

You might notice that pixels use those same colors. Once you back up enough it looks like each set of three pixels is actually a single point of light, so your brain combines the wavelengths into a single color.