Full color LED display performance is associated with what materials - Full color LED screen - knowledge

by:Xinyao LCD     2020-04-22
Full color LED display is set microelectronics technology, computer technology, information processing in one of the large display system. It for its colorful, wide dynamic range, high brightness, long life, stable and reliable work, becomes the multitudinous show among the media, is widely used in commercial advertising, sports venues, information dissemination, news release, securities trading, etc. , is currently one of the more advanced display media. Below to see full color LED display a number of factors: 1, the antistatic ability of LED is a semiconductor equipment, is sensitive to electrostatic, easily lead to static electricity failure, so the antistatic ability appeared on the screen stature is very important. In general, the LED pattern of human body electrostatic voltage test failure should not less than 2000 v. 2, lost power, for full-color LED display by tens of thousands of and even hundreds of thousands of group consisting of red, green, blue three kinds of LED pixels, the failure of any color leds are affect the screen all the visual effect. In general, according to the professional experience, in full color LED display beginning the loss power of the assembly and the aging 72 hours before delivery should be no more than three over ten thousand ( Refers to the LED equipment itself reason lead to the failure of) 。 3, the attenuation characteristics of red, green, blue LED display have brightness with working hours to add attenuation characteristics. The stand or fall of full-color LED display chip and adjuvant material abundance of encapsulation technology level and the concave and convex resolution the attenuation velocity of leds. In general, after 1000 hours, 20 ma lit experiment at room temperature, the attenuation of the red LED should be less than 10%, the attenuation of blue and green leds should be less than 15%. Consistency of red, green, and blue attenuation of full color LED display has great influence on the white balance in the future, which displays the fidelity. 4, full-color LED display brightness is one of the important decision factors appeared screen brightness. Full-color LED display brightness is higher, the greater the allowance of using current, to save electricity, adhere to the safe has advantages of LED. Leds have different viewpoints of value, in the case of chip brightness is set, the smaller the viewpoint, full-color LED display is more bright, but show the Angle of screen. Shall generally be selected 100 degree appeared LED to ensure that the screen to meet the point of view. For different point distance and the appearance of different stadia screen, should be in brightness, viewpoints, and find a balance on the price.
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