led display indoor outdoor rental has great prospects for development because of its advantages of energy saving, environmental protection and long life. but the temperature is very important to the led display screen. the influence of temperature on the led display screen is related to the life and light efficiency and color of the led display screen. so the right temperature is very important for the led display screen.
the influence of temperature on led display screen has the following five points:
1. high temperature will lead to the complete destruction of led display screen
(1) if the working temperature of the led display exceeds the load-bearing temperature of the chip, the luminous efficiency of the led display will decrease rapidly, resulting in obvious light decay and damage.
(2) most led displays are encapsulated with transparent epoxy resin. if the junction temperature exceeds the solid phase transition temperature (usually 125 c), the encapsulation material will change to rubber shape and the thermal expansion coefficient will rise sharply, which will lead to the open circuit and failure of led display.
2. increasing temperature will shorten the life of led display
the lifetime of the led display is reflected in its light decay, that is, the brightness becomes lower and lower over a long period of time until it finally goes out. usually, the lifetime of led display is defined as the time when the luminous flux decreases by 30.