The basic structure of LED is a semiconductor P-N junction. Experiments show that the temperature of the P-N junction will rise when the current flows through the LED device. Strictly speaking, the temperature of the P-N junction region is the junction temperature.
In recent years, with the rapid development of led technology, the scope of application in the domain of lighting is also expanding. LED landscape lighting, LED indoor lighting, or LED large screens have gradually come to the public's attention.
The LED industry is a new industry rising at the beginning of this century. With the rapid development of science and technology, the high-tech field has become one of the focuses of international competitions.