亚洲 欧美 图片 自拍 视频

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          Xiao Zhiguo: R&D and breakthrough of LED a€?core powdera€?

          On August 17, 2010, sponsored by Gaogong LED, Dalian Luming Technology Group, Dalian Semiconductor Industry Association, Dalian City Government, Dalian Economic and Information Technology Commission, 2010 LED Illuminated China Tour - National Tour Survey and The sixth seminar of the industry seminar was successfully held in Dalian. The seminar was held in the multi-function hall on the second floor of the Bolt Hotel in Dalian. The meeting held a heated discussion on topics such as technology and patents for the development of the LED industry.

          The conference attracted about 100 participants. Liu Yuxi, Director of Semiconductor Division of Dalian Economic and Information Committee, Sun Dapeng, Director of Dalian Jinzhou New District Science and Technology Bureau, Xiao Zhiguo, Chairman of Dalian Luming Technology Group Co., Ltd., and Wuhan Diyuan Optoelectronics Technology Co., Ltd. Manager Dong Zhijiang, sales director of Jiangsu Xinli Optoelectronics Co., Ltd. Gu Zongjun, Ke Rui China senior engineer Wang Xiuru, and Dalian Hongwei Heat Transfer Technology Co., Ltd. general manager Yang Hongwu delivered a speech. Ma Junguo, chief engineer of the Dalian Economic and Information Committee, delivered a speech on behalf of the government.

          Xiao Zhiguo: The core technology of semiconductor lightinga€”a€”Development and breakthrough of LED a€?core powdera€?

          Xiao Zhiguo introduced the research and development and breakthrough of LED "core powder" from the two core technologies of semiconductor light-emitting chip and luminescent material. He pointed out that the technical advantages of combining LED chip with siloxy phosphor are low light decay and high light efficiency. High color rendering and wide color gamut.

          Xiao Zhiguo pointed out that white LED deficiency: low luminous flux, heat dissipation and stability need to be improved, color gamut and color rendering are not good, industry standards are formulated, cost is low, and intellectual property rights; high luminous efficiency and high color rendering White LED preparation elements: chip, phosphor, encapsulation, packaging process, auxiliary materials. The practical phosphors that have been matched with blue LEDs so far mainly include: composite oxides (perovskites), nitrides, nitrogen oxides, niobates, and silicates. In contrast, silicates have high light conversion efficiency. The crystal has good light transmittance and has a broad spectrum excitation band and the like.

          Xiao Zhiguo said that patents are the property of enterprises, patents are the magic weapon of competition, and the future patent war is an inevitable war. Luming Technology Group has more than 180 patents at home and abroad, more than 120 projects in the field of luminescent materials, and more than 60 semiconductor chips, including 80% of invention patents and 45% of international patents. There are great breakthroughs in technology: 1. Fully use domestic materials, creatively develop new siliceous luminescent materials for LEDs, with optimized light conversion efficiency, aging resistance, and excellent performance of broad spectrum excitation and intelligent adjustment. . Firstly invented and realized a single material spectral multi-emission peak illumination applicable to white LEDs, and is suitable for double excitation of ultraviolet light or blue light chip; 2. Realizing full light color spectral distribution in the visible light region in the same material system, The technical barrier of color rendering, low color temperature white LED and the consistency and uniformity of packaging products lay a solid foundation; 3. InGaN/AlGaN/GaN multilayer buffer layer technology is used to design epitaxial graded stress type, quantum well structure, Greatly improve the stability and life of the chip application; 4, the first use of siloxy luminescent materials and chips with this core powder integration technology, using energy transfer principle to achieve high color rendering, low color temperature, excellent aging resistance White LED production, LED performance indicators have reached the international advanced level; 5, innovative research on the optimization of luminescent materials and semiconductor chips design, through the optimization of core powder combination to achieve the best luminous efficiency and color rendering performance of white LED; In the industrial chain of white LED, establish a comprehensive intellectual property protection system, break through the patent blockade and monopoly of international lighting giants such as Nichia and Osram, which is conducive to revitalization.

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          Xiao Zhiguo, Chairman of Dalian Luming Technology Group Co., Ltd.

          亚洲 欧美 图片 自拍 视频
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