Domestic LED industry structure and trends

The LED is a semiconductor light energy is converted to electrical energy, and emits visible light may be infrared, ultraviolet, and other non-visible light. Compared to the small bulbs, LED using a low operating voltage and operating current, high stability, long life, easy to adjust and so on. 

 

Overall threshold LED industry chain is gradually reduced in successive years. Upstream monomer chips and crystals for LED chip processing midstream and downstream packaging and testing, and application. Upstream and midstream: a fierce international competition, most commercial risks, most technology content and huge financial support and so on. In the whole chain, the upstream LED chip and chip epitaxy industry occupies 70% of the profits of the whole industry, packaging occupies 10% -20%, LED applications accounted for 10% -20%. 

 

In the global energy crisis, energy saving, environmental protection, miniaturization increasingly become the focus of the environment, with a long life, rich colors and other characteristics of the LED semiconductor lighting technology is being widely adopted as the main way to save energy. Under conditions to achieve the same lighting effects, the semiconductor light bulbs with LED as a new light source, energy is only one tenth of the traditional incandescent lamp life is 100 times that of traditional incandescent lamps. 

 

Global LED industry in Japan, Taiwan, Europe, America, South Korea, mainland China have different degrees of penetration. Japan enjoys a 50% share of the global LED industry executive acknowledged leaders. 

 

After 30 years of development, LED industry in China has formed a relatively complete industrial chain, covering the LED chip, wafer, chip packaging and chip applications. In the end of 2010, there have been over 1000 and LED-related businesses set up in mainland China. These enterprises are mainly engaged in the packaging and application areas downstream capacity in R & D and chip extended backward. 

 

From the industrial chain, midstream and upstream LED industry has a strong dependence on the capital. Although in 2010 many companies have pledged to invest in LED projects, but ultimately maintain the sidelines. In mainland China, the number of upstream manufacturers occupy a very small proportion of the long-term shortage of chips, packaging manufacturers order backlog situation persists. 

 

In the industrial middle, stage by technology and capital threshold limits (such as high-power equipment and SMT equipment, etc.) in the country is relatively backward, while the low-level packages (such as single in-line device) can basically meet the domestic demand applications, and does not require large investments. 

 

In the downstream industries, different applications exhibit different characteristics, and overheating investment phenomenon temporarily exists. Many domestic enterprises will face long-term investment for excessive competition. It is predicted that from 2011 to 2012, these companies will be faced with the deterioration of the competitive period. 

 

Although China's LED industry as a whole and there is no advantage of advanced technology and on the international market share, but the domestic market conditions to facilitate downstream LED industry to create a good opportunity for development. LED in domestic demand, such as airports, high-speed construction and government projects. 

 

With the increasing lighting efficiency and technology, LED applications has been extended from the traditional to the display lights, traffic lights, backlight, lights, panoramic lighting and other fields, the development trend is very rich. 

 

Chinese government in recent years on the development of LED lighting industry has given high priority. 

 

Vice Minister Ma Songde once said: solid-state lighting industry concentrated in the United States, Europe, Japan, and South Korea and Taiwan of China in Asia, mainland China will soon have its own high-end LED production capacity and R & D institutions. But this requires international collaboration and support. 

 

International Power Electronics Exhibition PCIM-Asia organizers also told us that this LED as an independent paper plates, collected from companies and universities around the world to submit papers, including Fairchild's "low-power light controllable dimmer design ", Fairchild's" one for the primary side of the power of the new regulator LED single-stage PFC topology "and" high efficiency and precise continuous control research and implementation of LED driver "and so on. There are aspects of universities from Taiwan National Chiao Tung University, "triac dimmer with passive LCD Valley-Fill rectifier simulation and design" and National Taipei University of Technology in Taiwan, "an improved utilization of LED dimming circuit", etc. . 

 

This can be seen especially LED as a global hot topic is of concern researchers. 

 

March 2011, the Japanese Richter 9 earthquake, the electronics industry popular effects, such as LED industry is an important R & D base in Jiangmen global LED chip, the impact of the earthquake on the global LED industry, led the entire industry colleagues attention. 

 

According to reports, in the short term, the impact of the earthquake on the electronics industry is not yet clear, each downstream manufacturers generally have 1-2 months of inventory, but if the situation is not restored earthquake, to the finished product after the June price impact will be more obvious. 

 

Currently, China has not mastered the core technology, most domestic enterprises have had to rely on his production and processing technology to do that after the earthquake, the supply-strand breaks, will lead to the collapse of the domestic downstream industries. 

 

We mastered the core technology for the next few years is the most important issue is the only way to get rid of dependence on technology powerhouse. As the power electronics industry benchmark, held in 2011, 21 to 23 June PCIM-Asia for domestic LED industry provides a good platform for contact with foreign core technology offers the possibility, but also in response to the government's call . For the vigorous development of China's LED industry provides international collaboration and support.