Encourage the use of cool thinking LED investment boom

LED investment boom, the industry also calmly in China last year launched a national semiconductor lighting project has to the LED investment boom, many regions have launched LED production line. In the face of the LED industry construction boom, recently, the well-known LED industry experts believe that, in the LED industry in the development of technical route, investment direction and how to implement the fast group breakthrough and other issues, the industry also calmly, to correctly grasp the direction of development. To break the monopoly of a variety of technical routes coexist in the face of LED investment boom, domestic R & D to choose what kind of technical route is the industry experts concerned.

According to reports, the current global implementation method of ultra bright LED mainly concentrated in three kinds of technology, is a blue chip with yellow fluorescent powder; two is purple red green blue chip and phosphor; three is red green and blue chip hybrid packaging. In these three technical routes, a large number of foreign patent applications. Chinese photonics Optoelectronics Industry Association branch secretary Peng Wanhua said, in the face of such a large number of patents, Chinese to break the monopoly, the establishment of independent innovation of intellectual property rights, to promote the development of various ways of line technology co-exist in the industry, another way. Insiders said that the domestic research can be divided into several echelon, the first echelon also around the mainstream of the international technical route to go, in the main technical route to create new intellectual property rights. Blue chip, for example, to study the new epitaxial and chip technology on sapphire substrate or SiC substrate. Second or third tier to study abroad is not a new method to realize mass production, such as out of the international three techniques of siege, development of direct white emitting chip; moreover, the 26 R & D compound substrate, in blue chip organic polymer substrate or GaN substrate. Peking University professor Zhang Guoyi said that the current domestic and foreign direct emission of white chips in the study. Professor at Nanchang University in Jiangxi Jiang in their current study on 26 compound substrate. These new methods, although can avoid foreign patents, but is still in the forefront of research, from the industrialization is still quite remote, therefore, should be allocated to research and development of human and material resources.

"Bottleneck of semiconductor light-emitting technology seems to have focused on the chip manufacturing and packaging, but in the long run, the development of new materials is the priority among priorities." Professor Jiang said, "now foreign high-grade materials, the photoelectric conversion efficiency of 30%, while China is only about 10%. If the further study of the material, so that the conversion efficiency can be increased to 50% to 60%, behind the chip, packaging, etc.." Investment in red light devices can not be ignored in the past two years, LED investment enthusiasm, most of the funds are invested in the industry's hottest super bright blue LED, red and yellow light LED become unpopular". But many experts have stressed that the red and yellow light LED can not be neglected. The thirteenth Research Institute of China Electronic Technology Group Corporation Zhang Wansheng Professor, semiconductor lighting to spread or a distant prospect, optimism is not optimistic that the 5 years, 15 years, is generally 10 to 15 years. Therefore, our recent development goals should be special lighting, such as landscape lighting, decorative lights and other fields. One of the three primary colors of these applications is red light, so the red light can not be used. According to reports, at present, only a small number of companies doing red LED. In the epitaxial material four yuan, Hebei, Shandong and Xiamen three Department of Huaguang three companies, these enterprises or the product of luminous efficiency is not high, only 50mcd ~ 70mcd; or the production of small, not occupy the mainstream position in the market; or only required for their production, do not take away. While in the red chips, Xiamen, Nanchang, Hebei three Xin Lei Lide, Shanghai Dacheng company, less than the number of green and blue chip companies do. In the face of the huge application market, many of these enterprises are operating at full capacity, therefore, the experts called for, but also to increase the investment in the red light device and research efforts.

"Force" to "internal force" by the United Development according to the director of Shanghai Optoelectronic Industry Association, the company general manager Tang Guoqiang said, now the trend of investment LED like integrated circuit industry development process, namely industrial investment is from the road after road ahead of chip manufacturing and packaging equipment manufacturing process, this is a welcome development trend. But industry experts also pointed out that there are also a variety of regret in these investments. Is a global first-class enterprise in China due to the lack of understanding and not added to the current investment ranks, such as the United States LumiledsGree, Japan's Nichia and so on, now in the global business is more than the second or even three line companies, such as Chinese and Korean enterprises in Taiwan province. And a few of the top companies are mostly closed production, not with the domestic industry exchanges. Therefore, how to find and attract world-class enterprises and China's LED industry cooperation is still a more difficult thing. The two is from the past experience of cooperation, the country to invest in the mainland enterprises in Taiwan, their success of joint ventures with mainland enterprises are not many, they owned, how much benefit for mainland enterprises in technology and investment will not. In addition, the Taiwan enterprises with existing technology and investment advantages, coupled with the industrial transfer brings cost advantages, forcing some processing of mainland enterprises to the lower grade of products, make the environment more severe competition and survival. These phenomena indicate that the external force is still difficult to borrow. How does our LED industry unite under the leadership of the government,