As a representative of the new generation of light sources, LEDs have excellent performance, such as high brightness, color saturation and light efficiency. LED lamps have high efficiency, small size, light weight, firmness, long life, low driving voltage, easy to drive, and suitable for Need for a variety of occasions, such as indoor lighting, road lighting, architectural lighting, display applications, traffic signal lighting, industrial lighting. After the initial development, industrial start-up period and industrial growth period, China's LED industry is currently in the period of key technology development, and faces many problems and challenges. Disorderly competition affects the development of the industry in response to patent wars. Since 2010, some important white LED field patents will expire, in other words, the LED industry will be caught in frequent patent litigation and competition in recent years. According to incomplete statistics, there are currently 124,000 LED patent applications worldwide, including 20,000 in the US, 25,000 in China, and 49,000 in Japan. The key point is that China's 25,000 LED patents are mostly concentrated in the middle and lower reaches of the entire industrial chain, mostly in design and utility model patents, and invention patents are few and far between. Although there are some peripheral patents in the upstream industry chain, the core patents are less mastery. Balance capacity growth and market demand. According to incomplete statistics, in 2010, only listed companies invested more than 30 billion yuan in the LED field, including 30 billion yuan for Sanan Optoelectronics and 4 billion yuan for Dehao Runda. In 2010, investment in the LED industry, about 37 investment in the upstream chip field, 52 investment in downstream applications, signs of overcapacity. From January to July 2011, China's MOCVD equipment increased by more than 200 units. It is estimated that in 2012, China's LED chip production capacity will be 10 times that of 2010. At present, there are more than 500 MOCVD equipment in China, counting 96 projects under construction, with a total number of units exceeding 1600. According to statistics, there are currently 41 domestic sapphire substrate production enterprises with a total investment plan of 44.7 billion yuan, of which the project under construction is planned to reach 12.08 billion yuan, and the capacity of projects under construction is 101 million pieces/year. However, due to the pessimistic global economic situation, the demand for LED chips is declining. How to expand the LED general lighting market, how the government should support, how to cultivate the market, we need to solve. Avoid disorderly competition. The most direct result of some blind investment caused by the LED heat was vicious competition. Blind investment led to vicious competition, vicious competition ignored product quality, and inferior products corrupted reputation. As a result, disorderly competition has led to the collapse of some enterprises, and small and medium-sized enterprises that are blindly invested may not survive in such a cold winter. For the industry in the industry, what is the negative impact, how to change? It may take time and cost to slowly digest such effects. For the LED industry, which is difficult, has it added some unfavorable factors to it? Development should have a long-term vision to deal with the shortage of raw materials. High brightness LED chips are based on metal indium. Its content in the earth's crust is ranked 61st, strategic metal ranks second, development and application are growing, global reserves are not abundant, prices are growing, and there is expected to be a cyclical shortage in the future. If LED enters the general lighting market, the question is whether the raw materials are abundant. At present, many foreign institutions and enterprises have begun to explore new chip materials. China should also pay attention to this issue and start to deal with the possible rise in raw material prices in the future. New LED materials.
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