LED lamp

- Mar 29, 2017 -

Light emitting diode, its basic structure is a Electroluminescent semiconductor chip, glue or white with silver adhesive to the brackets, and then connected with a silver or gold chips and circuit boards, four weeks and then sealed with epoxy resins, to protect the role of the internal core, installed last shell, so good seismic behavior of LED lights. Applications involving mobile phones, lamps, home appliances and other daily goods and machinery production.

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.

Previous:History of the LED lights Next:No Information