Street Address: Shangbu South Road
City: Shenzhen
Province: Guangdong
Country/Region: China
General
LED (Light Emitting Diode), is a solid state semiconductor device, it can directly turn the electricity into the light. The heart of LED is a chip of a semiconductor, one end of the chip attaches to a support, one end is the negative pole, that another end connects the positive pole, make the whole chip encapsulated by the epoxy resin.The semiconductor chip is made up of two parts, a part is a Model P semiconductor, it occupies an leading position inside the hole it, another end is a Model N semiconductor, and mainly an electron here. But when these two kinds of semiconductors are joined, it would form one P-N combination.. When the electric current through the wire acts on this chip, the electron will be pushed to the P area, the electron compounds with the hole in P district, then will send out energy in the form of photon, this is the principle that LED gives out light. And the wavelength is the color of light, it is determined by the material of P-N combination .