For a full-color LED display, LED as the most critical components, its quality plays an important role in the LED display. LED display uses large number LEDs per square meter, LEDs directly determine the performance, color saturation and sharpness of full-color LED display.

The failure rate of LED screen

LED display is composed by thousands or even hundreds of thousands of red, green, and blue LED components. Usually failure rate is less than 1/10,000 after 72 hours aging test.

LED brightness will slowly decay along with long-term use, the attenuation is related with LED chip, auxiliary materials, packaging technology and so on. In general, after 1000 hours aging on 20 mA at normal temperature, the red LED attenuation should be less than 7%, blue and green LED decay should be less than 10%. The RGB light decay consistency has great influence on future white balance, thereby affecting the fidelity of the display screen.