The LED Panel Light emitting diode (LightEmittingDiode, LED), a semiconductor component. Initially used as the indicator, a display panel, etc.; With the emergence of white LED, has also been used as an illumination. It is known as a new light source, with high efficiency, long life, not damaged traditional light source can not compare with the advantages of 21st century. Plus the forward voltage, the light emitting diode can emit monochromatic, continuous light, which is electroluminescent effect a. Change the chemical composition of the semiconductor material, and allows the light emitting diode emits light in the near ultraviolet, visible or infrared. In 1955, the Radio Corporation of America (RadioCorporationofAmerica) Rubin Brown Stone Thai (RubinBraunstein) (1922 years old) first found the infrared radiation of gallium arsenide (GaAs) and other semiconductor alloys role. In 1962, General Electric Company, Nick Ho Lun Yake (NickHolonyakJr.) (1928) developed the first practical application of visible light-emitting diodes.
LED (Light Emitting Diode), light emitting diode, is a solid state semiconductor devices, it can be directly to the electrically converted to light. The heart of LED is attached to a bracket on one end of a semiconductor chip, the chip, is the negative side, and the other end connected to the positive power supply, so that the whole wafer is epoxy encapsulated. The semiconductor wafer is composed of two parts, a part is a P type semiconductor, the hole in it dominant, the other end is an N-type semiconductor, in the side of the main electronic. But the two semiconductor linking between them to form a "PN junction. When the current through the wire act on the chip, the electron will be pushed to the P region, the P zone electron hole recombination, then will be issued in the form of photons of energy, this is the LED light-emitting principle. And the wavelength of light that is the color of light, is the formation of PN
LED (Light Emitting Diode), light emitting diode, is a solid state semiconductor devices, it can be directly to the electrically converted to light. The heart of LED is attached to a bracket on one end of a semiconductor chip, the chip, is the negative side, and the other end connected to the positive power supply, so that the whole wafer is epoxy encapsulated. The semiconductor wafer is composed of two parts, a part is a P type semiconductor, the hole in it dominant, the other end is an N-type semiconductor, in the side of the main electronic. But the two semiconductor linking between them to form a "PN junction. When the current through the wire act on the chip, the electron will be pushed to the P region, the P zone electron hole recombination, then will be issued in the form of photons of energy, this is the LED light-emitting principle. And the wavelength of light that is the color of light, is the formation of PN
