LED display technology matures the rapid growth of the Chinese market

Different from ordinary cathode ray tube (CRT), plasma TV, LCD screen (PDP) (LCD), LED-display.cnLEDw.com/ ">LED display is the use of semiconductor light emitting diode as a light emitting element of the display, because LED has the advantages of high brightness, bright color, low voltage, low power consumption and long life so, although the angle less than 180 degrees and the pixel spacing is too small (generally not more than 3mm), but its unique advantages in the large screen, especially in light of the indoor and outdoor occasions occasions, LED display is the display of other products can not be replaced.

Important carrier

LED color screen is developed from the last century in 90s, with the rapid development of semiconductor technology and electronic technology to gradually mature. In the early stage of LED, there are some problems, such as small visual angle, low brightness, low uniformity, low resolution and unstable quality. Modern LED display technology is developing towards high performance, such as wide viewing angle, high brightness, high definition, high quality, high reliability and so on.

Modern color LED display is a photoelectric technology, computer technology, digital processing technology and other technologies as one of the high-tech products. It adopts high quality red, green and blue three colors of the semiconductor light emitting device (LED) composed of color light emitting pixel tube, by special large-scale and ultra large scale integrated circuit display circuit, the color television signals and computer signals by digital processing in the first few square meters to achieve large-scale display system of color image and text information display equipment thousand square meters of large screen. It is not only a huge color TV, but also a large color computer terminal, coupled with the configuration of the sound to make it a powerful multimedia information dissemination tool. Huge color screen can make thousands of people watch at the same time, with great rendering power. These features make LED display in the television, newspapers, magazines, radio and the Internet, such as the main media of the list, in today's new moon in the era of information technology development, plays a more and more significant role.

LED stadium is one of the first places to start the application of the display, and now the modern stadium color LED display and scoreboard has become an essential equipment. In the 2008 Beijing Olympic Games, the application of LED display can be fully reflected. In addition to each of the venues are equipped with a large LED display and the scoreboard, the opening ceremony of the innovative application of magic is also huge scrolls LED display. In recent years, indoor and outdoor LED advertising display World Plaza, the A new force suddenly rises., big city, traffic routes are important station in the establishment of advertising information to the big screen, color LED display screen will bring a wider market. The LED display is also widely used in the transportation hub, stock exchange, large-scale theatrical performances, exhibitions and other large public places; in addition to building decorative lighting and LED display mutual penetration technology, make the city become more and more bright and colorful night.

Huge Chinese market

The key performance of color LED display is generally considered to have six aspects: brightness and angle, uniformity and sharpness, color reduction, pixel failure rate, life, energy consumption and energy efficiency. To achieve these high performance, technological innovation is needed in many aspects, such as the design of drive circuit, device selection and reasonable use, control system design, signal transmission, color and brightness correction, reasonable structure design, system software and so on, these factors will affect the performance of the display system. Lack of early LED device brightness, small angle of view, has been gradually resolved by the device manufacturers.

It should be said that the development of LED display technology is very fast, especially the color LED display technology, domestic and foreign manufacturers are committed to the development of new technologies to create higher quality LED display. Domestic enterprises in recent years, the rapid development of technology, while foreign enterprises to enter China has brought the world's advanced level of products, but also to promote the technological progress of the industry. The United States Daktronics is currently the world's largest professional manufacturer of LED display enterprises, since 2006 to enter the China, the successful implementation of the Shanghai Nanjing road Hongyi building, like the Beijing Wukesong Olympic Stadium, Beijing South Railway Station and other large LED display engineering. LED China display market is very large, according to statistics Chinese optics and Optoelectronics Industry Association LED display applications branch: 2007 Chinese LED display market sales reached 7 billion 200 million yuan, the next few years will maintain a high growth rate. I believe that with the LED display technology innovation, as well as the falling cost of people on the LED product awareness continues to deepen, the scope of application of color LED display will be further expanded, and will play a significant role in the development of social economy. (Department of electronic product consultant and production director)