Service life is an important guarantee for the reliability of electronic products, and it is also a necessary link in the production of electronic products. This product can improve the performance after aging and help maintain stable performance in later use. In product quality control, the aging test of LED displays is very important, but because it is easily overlooked, the aging test cannot be carried out correctly and effectively. According to the characteristics of the product failure rate curve, the LED aging test method is used to improve the reliability of the product, but this method is not required. After all, the aging test sacrifices the life of a single LED product. Pay money
The aging methods of light-emitting diodes include constant current aging and constant voltage aging. Constant current source means that the current does not change at any time. There is a frequency problem, not constant current. That is, AC or pulse current. AC or pulsating current sources can be designed to have a constant effective value, but this type of power source cannot be called a constant current source. Constant current aging is a characteristic of LED current work and a scientific method of LED aging. Impact overcurrent aging is also a new aging method adopted by Shenzhen outdoor LED display manufacturers. Using a constant current source with adjustable frequency and current, the quality and life expectancy of the LED can be judged in a short time, and at the same time potential problems that cannot be found by traditional aging methods can be found.
