In the context of the current global energy shortages, the energy conservation is an important issue for us in the future. In the field of lighting, the application of LED lighting products is attracting the attention of the world. LED is a new type of green light source. It is bound to be the trend of future development. In the 21st century, it will enter the era of new lighting sources represented by LED.
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The Chinese LED industry started in the 1970s. After more than 30 years of development, China's LED industry has initially formed a relatively complete industrial chain including LED epitaxial wafer production, LED chip preparation, LED chip packaging and LED product application. Under the impetus of “National Semiconductor Lighting Projectâ€, seven national semiconductor lighting engineering industrialization bases in Shanghai, Dalian, Nanchang, Xiamen, Shenzhen, Yangzhou and Shijiazhuang were formed. The Yangtze River Delta, the Pearl River Delta, the Triangle and the North have become the gathering places for the development of China's LED industry.
At present, the development of China's semiconductor lighting industry is improving, the development of epitaxial chip companies is particularly rapid, the scale of packaging enterprises continues to grow rapidly, and lighting applications have made great progress. In 2007, the output value of China's LED application products has exceeded 30 billion yuan. It has become the world's largest producer and exporter of LED full-color display, solar LED, landscape lighting and other applications. The emerging semiconductor lighting industry is taking shape. Domestically, it has formed certain characteristics in the field of lighting. Among them, outdoor lighting has developed the fastest. There are hundreds of LED street lamp companies and dozens of demonstration roads have been built, but they still lag behind in the indoor general lighting market.
Recently, Zhongshan LED industry has made new achievements. The "Single Bead High Power 30W Combined LED Street Light" project developed by Zhongshan Hongbao Electric Co., Ltd. officially passed the scientific and technological achievement appraisal and was recognized in the field of semiconductor lighting. The overall technology has reached the domestic leading level, and the application of single-bead high-power 30WLED combined light source in street lamps has reached the international advanced level. It has been reported that this project combines the thermal requirements, optical characteristics and driving characteristics of high-power LED light sources to carry out research and development of key LED street lamp technologies, and has achieved innovative results. In addition, the product of the product has been tested by an authoritative testing organization, and the energy-saving effect of the various technical indexes is over 60% compared with the high-pressure sodium lamp street lamp. At the same time, related technologies have applied for 6 invention patents, utility model patents and 15 appearance patents. This will undoubtedly bring a strong shot to the LED lighting industry in China.
However, although the domestic LED lighting industry is facing a trend of rapid development, it still needs to work hard on core technologies to occupy the status of upstream core products. Liu Shiping, deputy secretary-general of the China Lighting Society, believes that the lack of core technology is one of the bottlenecks in China's LED development. The data shows that although China has obtained about 20,000 LED related patents as of the end of last year, most of them are concentrated in downstream applications, packaging and other fields. Due to the lack of core technology, China's LED development is uneven upstream and downstream. Most enterprises are small in scale, low in technology, and unreasonable in industrial structure. However, with the country's emphasis on this emerging industry and the strengthening of its layout, it is expected to push the industry to further break through the bottleneck and achieve new development. 