LED industry will enter the golden age

From infrared remote control to the mobile phone screen, from traffic lights to display appliances, as the new generation of light source, led, has been increasingly penetrated into people's lives.

"In the next 3 to 5 years, LED industry will enter a golden age. Domestic and foreign related industries will also be more intense competition, LED companies do not attach importance to strengthen the core technology in the field of independent innovation, is bound to be eliminated in the competition. In the recently held annual meeting of the Jiangsu Institute of electronics in 2010, the Chinese Academy of Sciences, Professor Zheng Youliao, Professor of physics, Nanjing University, a speech, causing the resonance of many participants.

More and more ordinary household appliances with LED Technology

LED is semiconductor lighting, is a kind of new light-emitting chip to control the lighting technology, is one of the emerging industry focus on the development of our province. Compared with traditional lamps, LED can save more than 90%, life expectancy is 10 times the fluorescent lamp, incandescent lamp of 100 times.

"At present, LED as backlight of liquid crystal display has become the mainstream of the market. "Zheng Youliao said, has the obvious advantage of LED backlight in clarity, color reduction ability and contrast and so on, in addition to LCD TV, the use of LED technology, computer projector, will soon enter the homes of ordinary people.

China's LED street lamp occupancy rate of less than 0.5%

So far, LED has yet to be used in the traditional lighting, "the reason is not the luminous efficiency of incandescent lamp and fluorescent lamp, but in street lighting, automotive lighting, LED technology has a great advantage. Zheng Youliao said.

The brightness of LED lamp will be 30% - 50% higher than traditional street lamps, energy consumption is only 50%. To 98W LED street lamp, for example, the lighting effect is equivalent to 250W high pressure sodium lamp, life expectancy will reach 50 thousand hours, is more than 10 times the high-pressure mercury lamp. Zheng Youliao said, "a medium-sized city with 300 thousand street lights, if all replaced by LED street lights, a year can save electricity by 300 million degrees. According to reports, at present, there are 28 million lamps in our country, the annual increase and the replacement of street lights up to 3 million - 4 million, while the share of LED street lamp is less than 0.5%, a huge space for future development.

In addition, in the field of automotive lighting, LED technology will have a brilliant future. Zheng Youliao said, a LED bulb life in 5 - 100 thousand hours, to work for up to 12 hours a day, can work for 12 - 23 years. This means that the car can not be replaced with a LED lamp for life. "

Technology and cost bottlenecks need to break through

Although the LED industry has a huge space for development, but in the technical bottleneck, the high cost is the biggest problem at present. A traditional street lamp cost up to 2000 yuan, while a LED street lamp is as high as $4000 - $8000.

Behind the LED high prices is the lack of core technology. Reporters learned that, at present, Japan, the United States and Germany in the field of LED technology has tens of thousands of patents, far ahead of other countries. There are hundreds of enterprises in Jiangsu LED, but most of them are concentrated in the middle and lower reaches of the industrial chain, such as packaging, application, and so on. The core technology of the upstream is very short, and the LED chip is basically imported from the United States, Japan, Germany, South Korea and other places. Jiangsu enterprises must step up with independent intellectual property rights of the core technology research and development, reduce costs, optimize the technology chain, create a brand, grab the market, in order to win in the competition, driving the development of China's LED industry. Zheng Youliao called.