source:other news release time:2023-03-25 Hits: Popular:led screen wholesaler
It is very picky about the environmental temperature. Theoretically, it is about 25 degrees Celsius at room temperature. However, in fact, the environmental temperature of the outdoor LED display in the application is quite complicated. The maximum temperature in summer may be above 60 degrees Celsius. The minimum temperature in winter may be below -20 degrees Celsius.
LED and IC work efficiency and performance are inconsistent, the brightness is inconsistent, and the overall display of the screen body is naturally changed. Under different temperature conditions, the decline and decrease of the brightness of the three lamps: red, green, and blue is different. At 25 degrees Celsius, its white balance is normal, but the brightness of the three colors of the three colors of 60 degrees Celsius decreases. And its decay is inconsistent, so the phenomenon of decreased brightness and color of the entire screen will occur, and the quality of the entire screen will decrease.
1. Excessive temperature will cause the LED display to completely destruction
(1) The working temperature of the LED display operating temperature exceeds the bearing temperature of the chip will quickly reduce the luminous efficiency of the LED display, produce significant light failure, and cause damage;
(2) The LED display is mostly packaged in transparent epoxy resin. If the temperature exceeds the solid phase transition temperature (usually 125 ° C), the packaging material will change to the rubber -shaped and the thermal expansion coefficient will rise sharply, which will cause the LED display to open roads and failure. Essence
Second, the increase in temperature will shorten the life of the LED display
The life of the LED display is its light decay, that is, the long time, the brightness is getting lower and lower until it finally goes out. It is usually defined as the life expectancy of the LED display attenuation of 30 attenuation.
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