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Anti-aging common sense of LED display

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Time of issue:2022-01-10 16:33:38

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Anti-aging common sense of LED display

(Summary description)Aging is an important guarantee for the reliability of electronic products, and it is the most essential step in product production. LED products can improve performance after aging,

Anti-aging common sense of LED display

(Summary description)Aging is an important guarantee for the reliability of electronic products, and it is the most essential step in product production. LED products can improve performance after aging,

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Aging is an important guarantee for the reliability of electronic products, and it is the most essential step in product production. LED products can improve performance after aging, and help stabilize the performance in later use. LED display aging test is a very important link in product quality control, but it is often ignored in many cases, and it is impossible to perform correct and effective aging. LED aging test is a countermeasure taken according to the characteristics of the product's failure rate curve, that is, the bathtub curve, in order to improve the reliability of the product, but this method is not necessary, after all, the aging test is to sacrifice the life of a single LED product for the price.

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LED aging methods include constant current aging and constant voltage aging. A constant current source means that the current is constant at any time. The AC or pulsating current source can be designed to have a constant RMS value, but this kind of power source cannot be called a constant current source. Constant current aging is the working characteristic of LED current and is a scientific LED aging method; overcurrent impact aging is also a new aging method adopted by LED display manufacturers. Such aging is carried out by using a constant current source with adjustable frequency and adjustable current. , in order to judge the quality and life expectancy of LEDs in a short time, and can pick out many hidden LEDs that cannot be picked out by conventional aging.

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