Rare earth activation of new silicate luminescent materials is a major breakthrough in white LED lighting. It breaks the monopoly of international industry giants and realizes the “Created in China†of white LED luminescent powder. White LED technology is the basis for the industrialization of semiconductor lighting, and the yellow phosphor excited by the blue chip is one of the key technologies for preparing white LED. The most commonly used and widely recognized in the industry are rare earth doped garnet-structured phosphors: YAG and TAG, but these two technologies have been patented by Japan Nichia Co., Ltd. and Osram, Germany, Korea and China. LED companies in Taiwan pay expensive patent royalties and license fees every year. If we do not break the monopoly of foreign patents, China will face the same problem. Since 1997, Dalian Luming Technology Group has successively invented a series of new silicate matrix luminescent materials activated by rare earths. This material is another major new white phosphor patent after the Japanese Nichia YAG powder and the German Osram TAG powder patent monopoly. Its original results have been patented by China, the United States, Germany, France, the United Kingdom, Italy, South Korea and other countries. .
The major technology invention project of the Ministry of Information Industry of 2006 is a GaN-based high-performance LED chip and industrialization. The main content is based on sapphire as a substrate, the epitaxial layer is formed by metal organic chemical vapor deposition method, and then chip fabrication is completed through a series of chip processing techniques. The project has applied for 11 invention patents, including 7 US invention patents and 4 Chinese invention patents. Luming has designed and built an industrialized production line with an annual capacity of 300,000 high-quality epitaxial wafers and 3 billion high-reliability chip capabilities. Such LED chips play an increasingly important role in traffic lights and indoor and outdoor full color displays, urban landscape lighting, LCD backlights, automotive lights, special lighting and future general lighting.
"All this is inseparable from the policy of the Dalian Municipal Party Committee and the Municipal Government to encourage enterprises to innovate and develop and seize the opportunities of the new technology industry." Xiao Zhiguo, Chairman of Luming Group, spoke of the development and breakthrough of the company in the past year and issued a deep testimony. In the 21st century, a new industrial revolution triggered by semiconductor technology--the semiconductor lighting revolution began to sweep the world, and the United States, Europe, Japan, South Korea, etc. have successively launched national new light source plans to seize the commanding heights of new industries. The city has supported the optoelectronics industry as a high-tech strategic industry. Mayor Xia Deren is the leader of the Dalian Optoelectronics Industry Leading Group. In 2006, Dalian Optoelectronics R&D Center was completed and used. Dalian has formed a chain of upstream, downstream and downstream industries in the semiconductor lighting industry. A good industrial development trend that is compatible with convergence, basic research and application development.
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