Knowledge of led display, led display the three affected factors

by:Xinyao LCD     2020-03-27
Led display with the other items are the same, in use process inevitably run into all kinds of problems. In the use of full color led display, may be due to the following eight problems, lead to difficulties or affect the use of the play big screen, and also can use it longer. 1. Cooling design of led display, led work will be fever, when temperature is too high will affect the speed of the led attenuation and stability, so the PCB thermal design of the good and the bad affect of led display performance. 2. Reasonable design of current value, the led is the standard current 20 ma, generally it is strongly recommended that when using maximum current cannot exceed eighty percent of the standard current, especially for large screen display point spacing is very small, because of the heat dissipation is not very good, should take measures to reduce the current value. According to the research, due to the attenuation of the three color led display led, can be targeted the bottom of a certain color of current value, maintain the consistency of the big screen for a long time to use the white balance, so as to prolong the service life of led display. 3. Mixed light: the same kind of color and different brightness of led lamp bead need to mix light, or in accordance with the law of discrete designed to plug the lamp light figure, so that the brightness of each color. If there is a problem, this procedure would be a big screen local brightness non-uniformity, directly will affect the display effect of led display.
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