Electroluminescent display.How Stuff Works

Electroluminescence is the Optical and Electrical phenomenon in which a material emits light when current passes through it. This phenomenon is entirely different from the emission of light from bulbs and other light emitting devices. It is resulting from the radiative recombination of electrons and holes in a semi conductor material. The excited electrons then generate Photons which appear as light. LEDs and Phosphor displays are typical examples of electroluminescent lighting.

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