The reason for the optimistic expectation is that, first, the policy environment has become the main driving force for industrial development at this stage. In recent years, national policies have been steadily tilting towards the application side. Coupled with the rapid growth of China's LED market, China has become a market with great potential for semiconductor lighting applications and the world's most concerned market. Favorable policies to boost national demonstration projects for the next LED application product application and promotion to lead the direction, but also the development of China's semiconductor lighting industry in two-wheel drive market and policy gained sustained momentum. According to State Lighting R & D and Industry Alliance (CSA) statistical data show that in 2012 the industry reached 192 billion yuan, compared with 156 billion yuan in 2011 increased 23%, although growth has slowed, but the key technologies The breakthrough also makes it possible to maintain a relative growth in 2013 . Responding to this expectation is that for the LED lighting market, which has been sluggish since the second half of 2011 , most of the respondents expressed optimism and believe that with the emergence of positive factors such as LED lighting technology advancement and policy support, the market is picking up. The possibility is great.
Second, in recent years, China's LED lighting industry investment has been showing rapid growth. Although the investment structure changed significantly in 2012 , the proportion of epitaxial chip investment decreased significantly, while the application investment increased significantly, and thus became the most concentrated investment in semiconductor lighting. industry links, followed by investment package, but in this survey for the 2013 China's LED lighting industry to invest in, or nearly half of respondents believe that the presence of 2013 China's LED lighting industry structural investment overheating, 30 percent of respondents It is believed that there is overall overheating, and only 16% of respondents believe that the amount of investment in 2013 matches demand ( Figure 2) . A large amount of money has flooded into the semiconductor lighting industry, which has pushed up the speed of the industry's development. At the same time, it has caused people's concerns about overheated investment. However, with the adjustment of investment structure in 2012 , the investment in China's semiconductor lighting industry will become increasingly rational. It also highlights the competitive advantages of the application field and is conducive to further enhancing the comprehensive competitiveness of China's semiconductor lighting industry. **
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