The reasons for the decay of LED display screens are usually caused by the following aspects.led display screen for shop

　　(1) The defects in the material of the LED display chip will quickly proliferate and reproduce when higher temperatures, until they invade the emitting area, forming a large amount of non -radiation composite center, which seriously reduces the lighting efficiency of the LED display. In addition, under high temperature conditions, the micro -defects in the material and the fast expansion impurities from the interface and the electric board will also introduce a light -emitting area to form a large number of deep energy levels, which will also accelerate the light decay of the LED display device.

　　(2) The transparent epoxy resin will degenerate and yellow during high temperature, which affects its light transmission performance. The higher the working temperature, the faster the process. This is another main reason for the decline of the LED display.

　　(3) The light decay of fluorescent powder is also a main reason that affects the decay of lighting of the LED display, because the attenuation of fluorescent powder at high temperature is very serious.

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