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
each OLED element emits light separately, which is different from the prevalent non-emmitting LCD displays which merely filter a backlight. so in the case of LCD (now with gridded LED backlights), turning off a portion of the backlight will have this effect you are mentioning, a noticable gap in luminosity from the *almost* black with the LCD value attempting to block all of the backlight, to `rgb(0,0,0)` with the backlight off.
but since the OLED elements are the emitters, themselves, they are tuned in manufacturing such that a value of `1` is just barely emitting and is as close to indistinguishable from `0` as their gradient allows.
so to sum it up, local dimming/disabling of a coarse grid of LED backlights (in LED backlit LCD displays) will not have the same effect as individually dimming each emitter independently (in OLED displays).
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