We often encounter such problems when applying LED screens. The LED screen works normally when the product is first used, but after being lit for a period of time, the light will dim, flicker, malfunction, and light up intermittently. causing serious damage to the product. Therefore, aging testing must be performed during LED display production.

    The aging of LED display screens is an essential step in the LED display production process. It is also a testing link in LED display production testing. It is an important guarantee for the quality of LED electronic display screens.

     LED aging test is a very important part of product quality control. LED products can improve their performance after aging, helping to stabilize their performance in later use. The LED aging test is a countermeasure taken based on the characteristics of the product failure rate curve, that is, the bathtub curve, to improve product reliability.

    The aging of LED display is divided into white light aging (4 hours) and video aging (48 hours).

    LED aging methods include constant current aging and constant voltage aging.

     A constant current source means that the current is constant at all times. If there is a frequency problem, it is not constant current. That‘s alternating current or pulsating current. AC or pulsating current sources can be designed to have a constant effective value, but this type of power supply cannot be called a "constant current source." Constant current aging is in line with the LED current operating characteristics and is a scientific LED aging method. Overcurrent impact aging is also an aging method adopted by manufacturers. By using a constant current source with adjustable frequency and current for such aging, the quality and life of the LED can be judged in a short time, and many problems that cannot be solved by conventional aging can be discovered. Picking out Hidden LED Hazards,

1. Test content: white screen, red, green and blue monochrome, grayscale gradient, video effect, text effect

2.LED display white screen test time is not less than 24 hours

3. Monochrome and grayscale gradient testing shall take no less than 24 hours.

4. Video and text effect testing shall not be less than 24 hours 4

5. There must be someone on duty during the LED display aging test, and if any problems are found, they should be reported to the engineering department manager for processing in a timely manner.

     Aging is an important guarantee for the reliability of electronic products and an essential step in product production. LED products can improve their performance after aging and help stabilize their performance after drying. LED display aging test is a very important link in product quality control, but it is often ignored in many cases and cannot perform correct and effective aging.