The history of LED displays

The history of LED displays


LED display as a new display media, with the rapid development of large-scale integrated circuits and computer technology, has been developed rapidly, it is compared with the traditional display media - colorful neon, pixel tube TV wall, four-color magnetic flip-flop, with its high brightness, dynamic image display effect, low failure, less energy consumption, long life, display content, rich display mode, high performance to price ratio, as a new generation of display media, has been widely used in all walks of life. As a new generation of display media, it has been widely used in all walks of life with its advantages of high brightness, good dynamic image display, low failure, low energy consumption, long service life, diverse display contents, rich display methods, and high performance to price ratio. In particular, the grayscale display with its modern posture for enterprises and institutions image publicity and public places information display has become an irreplaceable display media.


Throughout the development process of LED display, and the contemporary progress of science and technology is closely related, the first domestic LED display was built in 1982 in Nanjing Railway Station, due to the limitations of LED materials at that time, the luminous brightness is only about 8mcd, coupled with the control and drives circuit is not mature enough, the display effect is very poor, the failure rate is very high. From 1992 onwards, with the improvement of electronic components performance, large-scale integrated circuits and the development of computer technology, the reliability, and brightness of LED devices continue to improve, the cost continues to decline, especially in the financial securities industry, the substantial growth of market demand, so that the domestic LED display into a stage of rapid development, the emergence of multi-level gray LED video display, and TV walls, rear projection Compared with TV walls and rear projection screens, LED displays have been widely used for their high brightness, strong contrast, and all-weather operation, and have now become an essential propaganda media device for finance, securities, stations and terminals, stadiums and so on. Especially indoor full-color screens (i.e. indoor three-color screens) because of its full-color holographic, small particles, the advantages of realistic color and become the director of development of LED screens in the future period, with the increasing sophistication of such light-emitting devices and significant price reductions, indoor full-color screens will be greatly favored by the market to make up for the lack of color projection and other equipment.


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