LED electronic display quotes Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd.

LED electronic display (13992889963) Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd. offer LED display aging is the last necessary step in the production of LED display, LED display production is detected The last link is detected, LED electronic display is an important guarantee of product quality. LED aging test in product quality control is a very important part. LED products in the aging can enhance its effectiveness and help stabilize the effectiveness of post-use. Measures LED aging test is based on product failure rate curve that is characteristic of the bathtub curve taken in order to improve product reliability. LED full-color display is divided into white aging aging (four hours) and video aging (48 hours). LED aging modes include constant voltage constant current aging and aging. Constant current source means at any time constant. Has a frequency of problems, it is not a constant. It is AC or pulsating current. AC or pulsating current source can be designed to RMS constant, but this power is not called "constant current source." Aging is the most constant LED current operating features, is the most scientific way LED aging. An overcurrent impact of aging means aging but also manufacturers the latest available, through the use of adjustable frequency, current adjustable constant current source for such aging in a short time to judge the quality of the life expectancy of the LED, and can pick out many conventional Aging can not pick out the hidden LED. LED display aging test five considerations: First, the test content: black and white, red, green, blue color, shades of gray, video effects, text effects. Two, led display a white screen test playing time is not less than 24 hours. Third, monochrome, grayscale gradient test not less than 24 hours. Fourth, video, text effects test not less than 24 hours. Five, led display aging test must manned, identify problems and timely reported to the Engineering Manager for processing. (Finishing Source: HC LED screen network)