China's silicon substrate LED technology "revolution" breaks the monopoly of foreign technology
Release date: 2017-08-28 Source: People's Daily shared: 
Today, lamps smaller than sesame seeds are leading a new "lighting revolution." What we can see, including open-air electronic screens, car headlights, and smartphone flashes, are all about the development of photodiodes. More than 70% of LED application products in the world have been processed and manufactured in China, but the lack of core technology has been monopolized by high-end foreign companies. Nowadays, the silicon substrate LED light source produced by Jingneng Optoelectronics Co., Ltd. has completely changed the situation that imported products occupy the high-end market.
At present, we know the substrate of the LED in three ways: a sapphire substrate and a silicon carbide substrate and a silicon substrate. Nowadays, the sapphire substrate is widely used, but the silicon substrate is not only cheap and easy to promote, but also improves the reliability of the luminaire system. It is only because the silicon substrate technology is extremely difficult to solve, many developed countries gave up this project early.
Beginning in 2003, the team of Jiang Fengyi, a professor at Nanchang University, focused on silicon substrate LED technology. After long-term efforts, the silicon substrate LED technology has been successfully developed, and industrialization has been achieved through cooperation with Jingneng Optoelectronics.
Wang Min, CEO of Jingneng Optoelectronics, said that “our annual R&D investment is about 80 million yuan to 100 million yuan, and research and development steals about 10% of the project. If there is not enough R&D investment, the enterprise development will Will fall behind." In the LED components with only the hairline radius, Jingneng Optoelectronics has more than 130 international and domestic patent technologies.
The energy consumption of LED lamps is only one tenth of incandescent lamps and one-half of fluorescent lamps. According to the scale of existing lighting power in China, if LEDs are used to replace incandescent lamps and fluorescent lamps, 100 billion kWh of electricity can be saved every year.
The silicon substrate LED technology independently developed by China has been regarded as the third technical route of the global LED industry. It is the core competitiveness of the rapid development of Jingneng Optoelectronics, and also a wonderful epitome of China's LED lighting industry from Chinese manufacturing to China.
The National 863 Expert Group’s evaluation of this technology is: “Breaking the current situation in which a Japanese company monopolizes sapphire substrates and a US company monopolizes silicon carbide-based semiconductor lighting technology, forming a sapphire, silicon carbide, silicon-based semiconductor lighting technology solution. A three-legged situation."
Jiangxi seized the advantages of successful R&D and industrialization of silicon substrate LED technology, vigorously supported the development of the whole industry chain, promoted the technological advantages and accelerated the transformation into industrial advantages, and realized the technological commanding heights to the market commanding heights, and built Nanchang into a national LED light. Valley.
In recent years, Jiangxi has successively issued a series of scientific and technological innovations such as “In-depth implementation of innovation-driven development strategy to promote the construction of innovative provincesâ€, “Jiangxi Province Innovation Driven “5511†Project Implementation Opinionâ€, “Several Provisions on Encouraging Scientific Researchers to Innovate and Start†Policy documents, strengthening the policy guarantee of technological innovation from the top design.
At the same time, Jiangxi is also making every effort to increase the investment in research and development of the whole society, promoting the implementation of the “Action Plan for Promoting the Transformation of Science and Technology Achievements in Jiangxi Provinceâ€, increasing investment in all aspects of scientific research, and building a bridge between production and research. In 2016, the province's research and experimental development expenditure increased to 20.73 billion yuan, 1.82 times in 2012; the main position of enterprise innovation was further strengthened, and R&D investment reached 18.135 billion yuan, an increase of 93% over 2012.
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Tags: lamps, lamps, LED lamps
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