Originally Posted by WereCatf
Incorrect. AMOLED displays do turn the pixels off. Even Wikipedia ( https://en.wikipedia.org/wiki/AMOLED
) confirms this: "Because the black pixels actually turn off, AMOLED also has contrast ratios that are significantly better than LCD.
sorry (no flame), but YOU are definitely incorrect!
some ("pulsing" in terms of PWM) amoleds are able to show completely dark pixels, but the point is: our note screen
isn't of that type. it's not pulsing (not even on a very high freq) and regulation of "brightness" is done by altering the power of the (sub-)pixel.
however, if the display controller goes on the screen
goes into standby, and all pixels emit a tiny amount light, even if they are set at 0 (in terms of 0-255)! this counts for all pixels of the array, so it is not possible to shutdown single pixels to emit 0 light!
try it for your own: there are a few possibilities for displaying a complete black picture. even at shutdown of the phone you have a few seconds until the already black screen
goes completely black (=real turn off)!
then you have to be in an almost dark room, let your eyes accomodate a minute and then look at the screen
. you will see a) that it still emits light, and that there are dark lines and/or "blotches". go and see for yourself!
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