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Principle Of LED Lights
Nov 12, 2016

LED (Light Emitting Diode), light emitting diode, is a solid state semiconductor devices of electric energy translated into visible light, it can be directly converted to electric light. Heart of the LED is a semiconductor chip, the chip attached to a bracket on the end, negative electrode at one end and the other end to connect the power of positive, the whole wafer was encapsulated by epoxy resin. Semiconductor chip is composed of two parts, the part of the p-type semiconductor, in the dominant position it inside the hole, and the other end is the n-type semiconductor, here is mainly electronic. But when I connect the two semiconductor, a p-n junction formed between them.

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