the development of led display

The LED display as a new show media, along with large scale integrated circuit and the rapid development of computer technology, obtained the rapid development, it and the traditional show media - and colorful neon lights, pixel tube TV wall, four color magnetic flap, compared with its high brightness, the dynamic image display effect is good, low trouble, less energy consumption, long service life, display content diversity, showing the way is rich, and performance to price higher advantage, as a new generation of show media, has been widely used in many fields. Especially with its modern grayscale display image promotion for enterprises and institutions stance or public places information display, has become the irreplaceable show media.

Throughout the LED display development process, and contemporary the advancement of science and technology are closely related, the domestic first piece LED display in 1982 in nanjing railway station was built, due to restrictions, luminous brightness LED materials only about 8mcd, plus control and drive circuit immature and display effect is very poor, failure rate is very high. Since 1992, with the improvement of the performance of the electronic components, large scale integrated circuit and the development of computer technology, LED device reliability and brightness constantly improve, cost declining, especially financial securities industry has greatly increased the market demand, makes domestic LED display enters a fast development stage, the emergence of a video display of multilevel grey, and LED TV wall, over-head projectors type projection screen, the LED display compared with its high brightness, contrast, strong, and all-water operation advantages, a wide range of applications, has now become finance, securities, station dock, stadium indispensable propaganda media devices. Especially indoor full color (namely indoor three colors screen) because of its full-color holographic, particles are small, colour lifelike advantage and makes for a period of the development direction of the LED screen, with the increasingly delicate such glowing device and slashed prices, indoor full color will be influenced by the market, big favor to make up for the color projection and other equipment shortage.