LED has a long way to go money King unlimited

In the short term, LED as a large size LCD backlight, is certainly a hot spot. But in the long run, home lighting will be LED greater application market. But no matter what kind of market, the price is still the biggest obstacle to the current LED wide range of applications.

LED into LCD backlight

Relevant information and creative management of ordinary business opportunities, two years of entrepreneurial small woman "penny Richard small fortune" 97 Canton Fair: machinery market opportunities forecast and baby supermarket shop guide recently, international LED and semiconductor lighting exhibition (LED Expo 2005) and FPD China 2005 in Shanghai at the same time. According to the organizers of the Shanghai optoelectronics industry association secretary general Tang Guoqing introduction, this is the first LED and FPD joint exhibition. LCD backlight module, is one of the most popular applications in the past two years, LED, is also one of the focus of attention at the exhibition.

As everyone knows, LED has been very mature application in the mobile phone color LCD backlight, LCD backlight and as a large size, still just started. Reporters on the scene saw the exhibition, the Japanese company as well as, China and the United States and Taiwan Polytron Technologies Inc are on display in the larger size of the LED backlight.

"We show 15.1 inches of the sample, the power consumption of 60 watts, the screen thickness of only 20 cm. Stanley can do 37 inches." Shanghai Stanley Electric Co., Ltd. Sales Department Lin Yi told reporters, the 15.1 inch LCD backlight display is the use of RGB tricolor LED, a total of using a total of 196 red, 392 green, 196 blue LED." The system adopts a plurality of wedge-shaped LGP ladder arrangement, the uniform light distribution, more importantly, the screen can do so only 20 cm in thickness, this is the biggest characteristic of Stanley products.

According to Yu Hua Polytron Technologies Inc marketing director Yang Xiaofeng said that the 7 inch LCD display on birch module backlight, mainly used in car satellite navigation display. The traditional LCD backlight is CCFL (cold cathode fluorescent lamp), compared with LED backlight source has the advantages of good color reduction, energy saving, long life, low pollution and so on. Stanley staff told reporters, LED backlight can be more vivid color, color gamut of 108%. Because LED has these advantages, more and more manufacturers begin to develop large size LED backlight. According to the China institute director Professor Fang Zhilie light, currently has LED backlight Agilent and MITSUBISHI cooperation made 34 inch LCD TV, SONY and Samsung launched LED backlight LCD TV 40 inches and 46 inches.

Reporters in the exhibition come into contact with people in the industry generally believe that LCD backlight LED applied to the large size of the technology is facing brightness, heat, light distribution and other problems, but the main obstacle to enter the LED of large size LCD backlight is the price. According to Stanley Lin Wi introduction, the 15.1 inch LED backlight will be mass production in the middle of next year, the price of about $150, more expensive than the traditional CCFL about 5 times. He believes that LED backlight is mainly positioned in the high-end LCD TV products, in order to replace the traditional backlight, at least 5 years. Yu Hua Yang Xiaofeng also believes that the main bottleneck is the cost of LED backlight. Currently, the cost of 7 inch LED backlight source and traditional backlight costs almost, below 7 inches is cheaper LED. As chip prices continue to decline, LED prices also showed a downward trend. He is optimistic that this year to next year LED backlight will have a big breakthrough. Professor Fang Zhilie believes that from the beginning of this year will enter the large screen LED backlight and CCFL competitive period, estimated to around 2008 LED backlight in the application of large size LCD screen will dominate. Lighting is still the big market "from the short term, as LED in large size LCD backlight, is definitely a hot spot. But in the long run, home lighting will be LED greater application market." Deng Siguang's view of the United States Gree, represents the views of the majority of the industry. Reporters at the show to see the situation is also in line with the above judgment. Exhibitors, most of them are LED packaging applications, the vast majority of applications to display products to landscape lighting, urban lighting, decorative lamps and display based. Comparison of the new bright spot is used for automobile taillight LED. Shanghai Jinqiao morning Photoelectric Technology Co., Ltd. will be equipped with a LED taillights Passat parked at the exhibition site. According to reports, LED for car taillights, the biggest advantage is that the LED response speed is very fast, compared with the traditional lamp millisecond response speed, the response speed of the LED is nanosecond, which will greatly improve traffic safety. "Application of LED backlight in a stable growth stage. Lighting will be a new growth point for LED." Yu Hua Yang Xiaofeng told reporters. Now LED street lamp, table lamp, lighting has a certain range of applications. However, the price is still the biggest obstacle. Deng Siguang made it clear that, now that the lighting is a bit too early." He believes that from a technical point of view to solve the problem as a large area of the light source LED light spread, but also a certain amount of time. In addition, the price factor is also crucial. According to the staff of the Shanghai blue light Polytron Technologies Inc, the company is developing a home lamp holder, using three watts of LED three, the price of ordinary halogen lamp and a difference of about 10 times. He believes that the main reason for the high price of LED high power LED chip production