LED display industry to expand the need to step up the rapid development of Technology

Reported on 12 December 13 and 1 Chinese network reported that Xi'an outdoor LED screen glare caused by light pollution. Friends said the LED screen caused by strong light can easily lead to traffic accidents, the reporter interviewed a number of drivers reflect traffic arteries LED screen glare and easily interfere with the driver. Xi'an Environmental Protection Bureau staff said that due to the flexibility of the LED screen brightness is very large, it is difficult to have a fixed standard, there is no relevant laws and regulations.

LED large screen light pollution brings a lot of trouble

LED large screen caused by "light pollution" has appeared in many city, this phenomenon caused by removal of the installation location, not suitable for broadcast, screen size, there are technical reasons LED large screen surface brightness adjustment, it is domestic manufacturers have issued research brightness according to ambient brightness is automatically adjusted the regulation system. However, it's also a reminder to the domestic LED display enterprises, "one of the appearance of light pollution is LED large screen problems in the development process, as a new thing, because the LED display technology is not mature, LED large screen in the development process will inevitably have other problems, which need to update technology this is the only way which must be passed to solve any new things to grow. Domestic LED display companies to use this as a reference, for the presence of LED display technical risks, to step up research and development, to minimize the occurrence of the problem, especially the relationship between people's lives, security issues.

LED products although it is not a new thing, but the development status of the domestic LED industry's current situation is not optimistic, the main problems are technical problems, especially the lack of core technology in LED industry, which is currently LED industry development "bottleneck".

As per square meter outdoor LED display contains thousands of pieces of LED devices, one hundred square meters of color display contains millions of LED, the application of LED technology in display belongs to the field of high-end LED. Must have the following characteristics: high brightness, excellent antistatic and high consistency (wavelength, high brightness, low attenuation, low angle) the loss of efficiency the RGB light distribution uniformity. Compared to the application of a single LED, LED display technology involves more and more challenging.

Present LED display technology mainly has the following problems:

Is a problem of lack of brightness. The main advantage of LED display is of complex outdoor environment strong adaptability, the characteristics of outdoor environmental requirements to LED display can guarantee enough brightness to transmit information in the sunny, cloudy, rain and snow weather, long distance, multi angle, so the brightness is particularly important, because LED lack of brightness, making the current LED in the lighting industry can only play a supporting role, mainly used for decoration, this is a great challenge for the comprehensive use of tens of thousands of LED.

Two LED color problem. The application of a single LED, there is no problem of chromatic aberration, but will be a comprehensive use of many LED, then the color problem will be highlighted. Although the existing technologies to improve this problem, but because of the limited domestic technology and production level, the same area with a batch of differences still exist in LED, and this difference is difficult to escape the eye picky, can not guarantee the LED display color reduction and fidelity.

Three LED display control chip. Color high resolution LED display as a new display media, with its clear image and high performance play ability, people pay more and more attention. But for the LED display unit, three color LED chip is the core device, therefore should use the small wavelength difference between the luminescence intensity and the consistent high quality of the tube core, and this technology is mainly in the hands of the world famous companies, such as Japan's Nichia Corporation etc..

Four is heat dissipation. Because of the outdoor environment temperature changes greatly, and the display work itself to produce a certain quantity of heat, if the ambient temperature is too high and bad heat dissipation, it will cause the integrated circuit does not work properly, even burned, so that the display system can not work properly.

Along with the rapid development of LED industry, LED applications continue to expand, shine outdoor advertising, stage background, building decoration, government agencies, outdoor signs and other fields, especially in hosting the Olympic Games, Asian Games, World Expo has become the application domain of LED star". As a new media to display, its development prospects are very broad. However, the development of the market must be based on consumer demand as a starting point for the LED display has problems and hidden dangers, to intensify technological upgrading and increase research and development efforts is the current domestic enterprises need to make up the lesson, that is also the basic foothold in the fierce competition in domestic and international markets.