I’ve read that OLED displays work by turning off electricity for an individual pixel which is displaying pure black, eliminating the backlight and displaying the deepest black possible. My question is, as soon as you have something that’s almost black, but not *pure* black (like `rgb(1,1,1)`), does the depth of the black go back to being just as good/bad as a regular LED screen? If not, then how?
In: Technology
OLED pixels only produce as much light as they need. black produces no light so it uses no electricity. dark grey produces a little bit of light, so it uses a little bit of electricity
OLED power use can be approximated with a simple calculation. take each pixel’s RGB values, translate them to luminance, and add them together (in reality each subpixel has a different efficiency rating you have to factor in. green at 100% brightness doesn’t use the same amount of electricity as red at 100% brightness). the result: OLED uses less electricity for a lot of content, even if it’s colorful. but it uses more for things like websites that are mostly white background
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