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An OLED (organic light-emitting diode) contains a film of organic material that emits light when current is applied. They may be used to create digital displays that do not require a backlight giving a deeper black level and higher contrast than LCD displays.

22 votes

How do devices like the Game Boy Advance achieve their frame rate?

The key feature of all the games consoles that distinguished them from early PCs and virtually all home computers(1) was hardware sprites. The linked GBA programming guide shows how they work from th …
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4 votes
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Is using a display panel as a light sensor conceivable?

Note that unless you optically focus and project an image onto the screen, you won't get a usable image even if you do manage to read out of an OLED screen. …
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39 votes
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Differences between OLED, LED, LCD, and TFT Screens

Ones that are real LED screens are usually OLED. OLED: organic LED (rather than silicon or germanium based like regular LEDs). …
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