China's LED technology is getting mature, LED lighting is developing rapidly

Many people think that the high-tech content of the LED industry is mainly concentrated in the upstream areas of epitaxial wafers and chips, while neglecting the high technical content and level of the middle and lower reaches. It turns out that it is precisely because of the rapid development of the mid-stream and downstream application industries. The driving force for upstream development and progress. Pan Jiangen, an expert of the National Expert Group of 863 major special semiconductor lighting projects and vice chairman of the Zhejiang Lighting Society, pointed out that "China's LED industry is driven downstream by the upstream market, and the application market promotes upstream development." At present, China has initially formed LED epitaxy. The production of chips, the preparation of LED chips, the packaging of LED chips and the application of LED products are relatively complete industrial chains, and have certain advantages in downstream integration applications. There are more than 50,000 LED employees, more than 20 research institutes and more than 4,000 enterprises; among them, there are more than 50 upstream enterprises, more than 1,000 packaging enterprises, and more than 3,000 downstream application enterprises. Driven by huge domestic demand, the LED industry has a bright future.

In the LED industry, from LED epitaxial wafers to final application products, a series of industrial chain links such as material epitaxy, chip fabrication, die packaging, application product design and assembly are required. The chip is only one of the links. On the one hand, from epitaxial wafers, packaging to lighting, display and backlight applications, all links in the industry chain can form independent products, with their own technical barriers and research and development needs; on the other hand, the quality of terminal applications Will be affected by each link. With the maturity of application technology, the development of LED lighting application technology has made semiconductor lighting fixtures gain advantages over traditional light sources in terms of efficiency, lighting quality, and design novelty. Semiconductor lighting continues to open up the market. The expansion of the market will lead to an increase in production and an increase in industry R&D investment, accelerating technological advancement, resulting in improved performance and a gradual decline in cost and price. Therefore, the international LED lighting market is developing rapidly and is expected to reach 17.474 billion US dollars in 2010.

China is not far behind in the field of LED lighting. China has introduced a number of policies to actively promote the development of the LED lighting market. It is expected to reach 21.661 billion yuan in 2010 and 35.8% next year.

LED lighting applications mainly refer to luminaire manufacturing and control systems. The technology is more embodied in system design, structural design, heat treatment and second and third optical design. In fact, many LED lighting companies are technically suffering from this headache, how to solve heat dissipation problems, how to solve light failure and so on. The final application of the product is the touchstone of all technologies. For example, the core component of semiconductor lighting is an LED chip, but the luminous efficiency of the LED chip reaches 100lm/W, which is not equal to the efficiency of the semiconductor lighting fixture. It also reaches 100lm/W; more importantly, the semiconductor lighting product needs market recognition. Comprehensive performance, including luminaire efficiency, reliability, and human eye comfort, must have significant advantages over traditional lighting products. In other words, even if the efficiency of a semiconductor lighting fixture reaches 100 lm/W, it does not mean that it will be accepted by the market. There are still many scientific problems in semiconductor lighting itself, such as lighting effects and quality including color rendering and color. Product consistency, human eye comfort, etc. At present, LED street lamp technology lighting is relatively mature. Compared with traditional street lamps, the advantages are obvious and gradually accepted by people. Under the promotion of countries around the world, the international LED street lamp market is increasing year by year, and will reach 261 million US dollars in 2010.

According to statistics, the market sales of LED street lamps in China in the first half of 2010 reached 462 million yuan, and it is expected to sell 693 million US dollars in the second half of the year. It will reach 1.155 billion yuan in the whole year. Driven by policies such as “Ten Cities and Ten Thousand Miles”, the installation volume of LED street lights has actually increased steadily this year, with an increase of 118.74%.