2012年12月18日星期二
モンクレール ダウン www.monclersdown.com The Full-color Led Display Sp
The full-color LED display special LED light bead quality and parameters can be attributed to the following five factors:
1, failure rate
As a result of full color LED display by tens of thousands or even hundreds of thousands of group of red,モンクレール ダウン, green, blue three LED beads comprising pixel points,モンクレール ダウン, either the color of LED lamp failure will affect the display of the overall visual effect,モンクレール. In general, according to industry experience,モンクレール ダウン, in the LED display assembly to start aging 72 hours before shipment on the inactivation efficiency should be not more than 1/10000 ( mean LED device itself causes failure ),monclerダウン.
2, antistatic ability
LED lamp is a semiconductor device, sensitive to static electricity,モンクレール monclerダウン Ugg Boots For Cheap I S, extremely easy to cause failure of the electrostatic, antistatic ability on LED display life essential. In general, LED lamp body static model test failure voltage should not be less than 2000V.
In 3, the attenuation characteristics
Red, green,モンクレー moncler The Western Digital Wd Tv Live Streaming M, blue LED lights are working with time increases brightness attenuation characteristics. LED chip quality, auxiliary materials and packaging process will determine the level of LED bulb decay rate,モンクレー,モンクレール monclerダウン The Classification Of P,モンクレー. In general, 1000 hours, 20 mA ambient light after the test, the attenuation of red LED lights should be less than 10%, blue, green LED lamp beads attenuation should be less than 15%. The red,www.monclersdown.com, green, blue attenuation uniformity of full color LED display screen after the white balance of great influence, and effects of LED display screen display fidelity,monclerダウン.
4, brightness
LED lamp brightness is LED display the brightness of the entire screen are important determinants of. The higher brightness LED lamp,moncler, LED lamp has good stability. LED beads with different point values, the brightness of the chip has been established, angle is small, LED lamp is brighter,モンクレール ジャケット, but LED display angle smaller,モンクレール ダウン. General should choose 100 degrees - 110 degrees LED lights to ensure LED display enough perspective. For different spacing and different distance LED display,モンクレール コート,モンクレール,moncler, should be in brightness, angle and prices to find a balance point.
5,monclerダウン モンクレール ダウン Uncle Photo Fram, consistency
Full color LED display screen is composed of numerous red, green, blue LED light bead comprising pixel mosaic, each color LED lamp brightness, wavelength consistency determined the LED display screen brightness uniformity,モンクレー モンクレール Tips For An Ideal Relation,モンクレール, white balance,モンクレール,www.monclersdown.com, color consistency consistency,モンクレール ベスト. In general, LED display devices require suppliers to provide 5nm wavelength range and 1: 1.3 of the luminance range of LED lights,www.monclersdown.com, these indicators can be by the device vendor by spectrophotometric color machine classification at,モンクレール コート. Voltage consistency generally do not require.
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