LED display screen is a device which can be classified as p4, p5, p6, p7.62, p8, p10, p20, p25 and more, according to the pixel pitch. It can reproduce all sorts for images, characters, TV programs, videos, VCD and flashs. LED display screen is characterized by good image illumination uniformity, nature color transitions reliability, stability and excellent consistency of signal output, without mosaic, and video transmission delay ascribing to static-constant current drive model. Besides, there are multiplied file formats in LED display screen, such as AVI, MOV, MPG, DAT, VOB, etc. LED display screen can show all kinds of word, text, graph, picture, active images, video, 2-dimention, 3-dimention animation and other information with your PC doing synchronously. It is designed for indoor and outdoor applications, like crowded areas, concert halls, holiday resorts, presentations, exhibitions, meetings, train stations, airports, metro stations, halls, congested city streets and squares, TV studios, modern dynamic video signs and banners and more.