Actual use, the light intensity often relatively easy to calculate the mapping data units or change the use. For the LED display such initiatives emitters commonly used CD / square meter as the unit of luminous intensity, and viewing angle of auxiliary parameters with LED display, which is equivalent to the surface of the screen illumination units lux; this value and Screen effective display area multiplied by the best perspective on the entire screen of the luminous intensity, assuming Screen luminous intensity of each pixel in the corresponding space constant, this value can be considered but also the entire screen body flux. General outdoor LED display is required to achieve 4000CD / square meter above the brightness of the sunlight has the ideal display. Ordinary indoor LED, the maximum brightness at 700 ~ 2000 CD / square meters. Single LED luminous intensity to CD as a unit, with a perspective parameters, the luminous intensity of the LED color does not matter. Single tube of luminous intensity from several mCD mCD to five thousand dollars. Luminous intensity LED manufacturers are given the means at 20mA current LED lights, luminous point of maximum intensity and the best perspective on the center position. LED package when the top of the lens shape and position of the LED chip from the top of the lens determines the angle and LED light intensity distribution. Generally speaking the same LED larger perspective, the smaller the maximum luminous intensity, but accumulated throughout the three-dimensional hemisphere surface of constant flux. Domestic LED display in the factory will be aging (grilled machine), the LED lights will repair and replacement runaway pixel LED display design, "the whole screen pixels out of control rate" controlled within 1/104, the "area of ??pixels out of control rate "within 3/104 of control is no problem, even some individual manufacturers of enterprise standards before leaving the factory is not allowed out of control pixels, but this is bound to increase the manufacturer's manufacturing maintenance costs and extend the shipping time. In different applications, the actual requirements of the pixels out of control rate can have large differences, in general, LED display for video playback LED display production enterprises, the indicator within 1/104 of control is acceptable, is to be achieved; if used simple character information dissemination, the indicator is controlled within a reasonable 12/104 of LED display design | 金锐光 electricity (certified) | LED Display Technology Co., Ltd. from Yichang 金锐光available. Yichang Jinrui Guang Technology Co., Ltd. (www.ycjrgd.com/) Hubei Yichang, electronic, electrical project co-leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Jinrui Guang power leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinrui Guang electricity.