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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.

4 votes

Why are there no discrete OLEDs?

Making an "OLED" and then putting it in a package, like you'd do with a Chip LED is commercially nonsensical from most points of view: It loses its microscopic-application-advantage It adds no flexibility …
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Could OLED displays be made to produce a voltage when off?

Remember several Mobile phone brands making an OLED model around 2012-ish and then quickly announcing they'd also start using normal LCDs due to sourcing issues? I do! … sets of three LEDs would only reach 8.29 * 10^6 * 3 * (1 * 10^-6)A * 0.1V = (8.29 * 3 * 0.1)W = 2.49W Would you engineer the electronics to capture that into a TV that already cost you way too much in OLED
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