Don't let LED repeat the mistakes of DVD

"Jiangsu LED enterprise, if not now stepping up development of core technologies with independent intellectual property rights, engage in patent, so it won't be long before, especially when we produce large amounts of exports, will certainly encounter patent barriers abroad, like DVD and mobile phone patent trap: the bulk of the profits to be patented abroad manufacturers take yourself can make a little money". August 5th, held in Zhenjiang, the 2006 Jiangsu optoelectronics industry technology forum, the Chinese Academy of Sciences, Nanjing University professor Zheng Youliao a speech to win the resonance of the participants.

LED (English "light emitting diode" abbreviation), is a kind of semiconductor lighting technology. The light emitting device can directly convert electric energy into visible light, and has the advantages of low working voltage, small power consumption, high luminous efficiency, long service life, etc.. Compared with the traditional incandescent lamp and fluorescent lamp, the utility model can save more than 90% of electricity, but the life of the fluorescent lamp is 10 times of that of the fluorescent lamp and the incandescent lamp is more than 100 times, and the pollution of the fluorescent lamp tube can be avoided, and the pollution of the mercury in the fluorescent lamp tube is avoided. "China's lighting electricity if there is a 1/3 semiconductor lighting, will be able to save electricity 80 billion degrees per year, equivalent to an annual power generation of Three Gorges power station." Zheng Youliao said.

In fact, LED has penetrated into people's lives. Like the red and green lights, the streets of Nanjing and other major city of the NanJing Railway Station flyover overhead lighting project, as well as mobile phone, digital camera backlighting keys, car dashboard, outdoor large screen and billboards are using LED technology.

According to Zheng Youliao introduction, now the application bottleneck of LED technology mainly is not the luminous efficiency of incandescent lamp and fluorescent lamp, once the technology breakthrough and reduce manufacturing cost, LED can replace the traditional lighting, triggering a revolution in the global lighting technology.

Faced with such a huge market cake, global companies and research institutions are in action. At present, Japan, the United States and Germany have taken the initiative, the number of patents far ahead. "The most popular methods are foreign manufacturers to apply for a patent," provincial director, optoelectronic technology center allray CEO Dr. Huang Zhenchun said in an interview with reporters, our province LED enterprises are basically application enterprise, truly engaged in chip technology research and development of the few, have patent mainly in the application field, the number is only 100 number. Products are basically no export, self occupied, once you want to enter the international market, it will be everywhere, but the foreign patent barriers, but certainly to fight. However, there is still room for independent innovation in the field of LED, so we must step up independent research and development enterprises. Allray plan through cooperation and development in 2010 to achieve a breakthrough on the technology, so that the light-emitting efficiency of LED reached the level of daylight.

Geng Bo suggested that national semiconductor lighting project project management office, although the 5 industrial base of national semiconductor lighting project is not in Jiangsu, but Jiangsu as the solar energy province, through the integration of industry resources, have its own characteristics in the development of LED technology. Because the LED is about 5 volts DC voltage, and now need to be converted by AC, and solar power is DC, LED can be used directly.