The LED display technology introduction

In 1923, ROM plug kauf (o.w Lossen. In the semiconductor SIC has studied impurities in the P - N "Light emission, developed Light Emitting Diode (LED Emitting Diode), garages, has been ignored. With the rapid development of electronic industry, in the 1960s, display technology is rapidly developing, people developed PDP plasma display panels, laser display LCD monitor, leds, electrochromic display ECD, electrophoresis showed EPID and so on many kinds of technology. Due to production and processing technology of semiconductor maturity and perfection, leds has become increasingly in solid display dominant. LED by extensive attention and the rapid development, because it itself has the activities, many advantages. For example: high brightness, working voltage, low consumption, easy integration, drive is simple, long life, impact resistance and stable performance, and its development prospect. Currently towards a higher brightness, higher resistance to climatic and glowing density, luminous uniformity, full-color change development.

In the early 1980s, with the development of the computer, showing the way CGA outlets appeared, it has 320 * 200 resolution 4 kinds of color, in just 10 years has experienced the display mode EGA, SEGA, CGA outlets, SVGA to high, and VGA resolution from 320, showing precision to 1,600 * * 200 development by four colors, 1250 to 32 bit truecolor, scan frequency to 150K from 1.57 K. Monitors working principle is the receiving host signal reductive into light form shows that with the development of people just need a bigger screen equipment, then a projector, but its brightness cannot in natural light use, then appeared LED displays (screen), it has a perspective, high brightness, colorful characteristics. The LED display application has been widely, in sports venues, big screen display system can match live and match the score, time, highlight replays, etc.; In transportation industry, can display road operation; In the financial industry, and real-time display financial information, such as stock, exchange rates, interest rates, etc.; In commercial telecommunications system to the masses of customers, can display announcement, news, advertising, etc. According to the survey shows that people accept information about two-thirds of information is obtained through the eyes. Display technology used in industrial production, military, medical units, such as public security system and aerospace industry national economic, social life and military field, and play an important role, display technology of modern human social life has become an indispensable technology.