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Linus is right. On an LCD screen the light travels through the pixel. The controller on each sub-pixel (see groups of three rgb rectangles in dont_shog_me_bro's answer) determines how that light is twisted and bent to display N amount of each, rgb, to give the full pixel it's color. See two pages here


Yes, this is correct, at least some of the time. Here is an image of an LCD display taken with a microscope: The black/white parts at the top of each pixel are the hardware for controlling each of those pixels. On mobile displays the manufacturer should use the smallest control hardware possible to maximise the amount of light that passes through the pixel, ...

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