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LED lamp Dec 21, 2016

LED is English light emitting diode (glow diode) of abbreviations, it of basic structure is a electric to glow of semiconductor material chip, with silver rubber or white rubber curing to bracket Shang, then with silver or gold line connection chip and circuit board, then four week with epoxy resin sealed, up to protection internal core line of role, last installation shell, so LED lamp of seismic performance good. Applications involving mobile phones, lamps, home appliances and other daily goods and machinery production.

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. When a current passes through the wire act on the chip when electron is pulled into a p-region, electrons with holes in the p-compound then energy as a photon, which is the principle of LED lights glow. And the wavelength of the light is the color of the light, is decided by the formation of p-n junction of the material.

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