Wuhan outdoor LCD splicing screen, LCD screen splicing Wuhan (certified), LCD screen splicing

 By use of the environment is divided into indoor, outdoor and semi-outdoor Indoor screen area is generally from less than 1 square meter to more than 60 square meters of Wuhan inch LCD screen, indoor LED display in the indoor environment, such moderate display brightness, viewing angle, color mixing from the past, light weight, high density, for relatively close viewing. Outdoor screen area is generally from a few meters to tens or even hundreds of square meters, more dilute dot density (mostly 2500-10000 points per square meter), brightness in 5500-8500cd / square meter (towards different, different brightness requirements), in the sun Under direct conditions, viewing distance of tens of meters Wuhan 55-inch LCD splicing screen, screen body has a good wind resistance to rain and lightning protection. Semi-outdoor screen between both outdoor and indoor, with high brightness, can be used in non-direct sunlight outdoor screen body has a certain seal, usually under the eaves or in the window. LED causes fever: LED fever because of the added power did not completely converted to light, but is part of the conversion into heat. LED light efficiency only 100lm / W, its electro-optical conversion efficiency of only about 20 to 30%. That is about 70% of the electrical energy into heat energy. Specifically, the price of Wuhan mosaic screen LCD, LED junction temperature is due to two factors caused by: 1. Internal quantum efficiency is not high, that is, when electrons and holes recombine and generate photons are not 100%, often referred to by the "current leakage" leaving the PN zone carrier recombination rate decreases. Leakage current times voltage is this part of the power, which is converted into heat, but this part does not account for the main component, because the internal photon efficiency is close to 90%. 2. Internally generated photons emitted to the outside of the chip can not be fully and finally into heat splicing LCD screen, which is the main part, because it called external quantum efficiency of only about 30%, most of them converted to heat up. As previously mentioned, although incandescent light efficiency is very low, only 15lm / W or so, but it is almost all of the electrical energy into light energy and radiate out, because most of the radiant energy is infrared, so low light efficiency , but it eliminates the problem of heat dissipation. Wuhan outdoor LCD splicing screen, LCD screen splicing Wuhan (certified), LCD screen splicing by Eagle Technology Co., Ltd. in Wuhan. Wuhan Eagle Technology Co., Ltd. (www.jishengled.com/)(www.jishengled.com) was Wuhan, diode leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Eagle Technology leadership with the staff warmly welcome all inquiries negotiations to create the Eagle Technology better future.