If your monitor is off it projects nothing so why can’t they just project nothing for black?
In: 11
Most modern monitors use a white backlight, and then block certain colors to form the display. For black, the monitor blocks as much light as possible. One notable exception is OLED display technology, which uses tiny individual lights to form the display. These monitors can just leave the LEDs off to form black, but they are far from the most dominant display technology.
Hope that helps.
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