News >>> LED threshold of the whole industry chain is gradually decreased year after year
LED threshold of the whole industry chain is gradually decreased year after year

        Single crystal for the chip and the upper reaches, middle reaches of the LED chip processing, and downstream packaging and testing and application. With upstream and midstream industries: international competition, most commercial risks, the most scientific and technological content and great financial support and so on. In the entire chain, the upstream extension of LED chips and the chip industry occupies 70% of the profits of the entire industry, the package occupies 10% -20%, LED applications accounted for 10% -20%. 
   
        LED is a light energy into electrical energy to the semiconductor, may issue a visible and infrared, ultraviolet, which are not visible. Compared to the light bulb, LED use of low operating voltage and operating current, high stability, long life, easy to adjust and so on. 
   
        In the global energy crisis, energy saving, environmental protection, small is becoming the focus of the larger environment, with a long life, rich color and other characteristics of the LED semiconductor lighting technology, is being widely adopted as the main way to conserve energy. Achieve the same effect in the lighting conditions, the semiconductor lamp uses LED as the new light source, energy consumption compared to traditional incandescent lamp 1 / 10, life is 100 times greater than conventional incandescent lamp. The global LED industry in Japan, Taiwan, Europe, America, Korea, mainland China has different levels of penetration. A 50% share in Japan, the Executive become the leader of the global LED industry.

        After 30 years of development, LED industry in China has formed a relatively complete industrial chain covering the LED substrate, wafer, chip packaging and chip applications. The end of 2010, there are already more than 1,000 LED-related companies with established in Mainland China. These enterprises are mainly engaged in the downstream packaging and applications in research and development and the chip's ability to extend backward
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        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 in the end to keep a wait and see. In mainland China, the number of upstream manufacturers occupy a small percentage of long-term shortage of chips, the order backlog situation packaging manufacturers persist. Middle in the industry, at this stage by the constraints of technology and capital threshold, in the country backward, while the low-level packaging applications can basically meet the domestic demand, without the need for large investments. Downstream in the industry, different applications show different characteristics, and there is a temporary phenomenon of over-investment. Many domestic enterprises will face over the long-term investment for the competition. It is predicted that from 2011 to 2012, will be the deterioration of these companies facing competition period.
 
        Although the overall LED industry in China has not advanced technology and international market share advantage, but the domestic market conditions to facilitate the LED industry, River created a good development opportunity. LED in the domestic demand, such as airports, high-speed construction and government projects. With the lighting efficiency and technology continues to improve, LED application field has extended from the traditional to the display lights, traffic lights, backlight lamp, lights, panoramic field of lighting, the development trend is very rich.
 
        China LED lighting industry in recent years has given high priority. Vice Minister Ma Songde once said: solid-state lighting industry concentrated in the United States, Europe, Japan and Asia, South Korea and China Taiwan, mainland China will soon have its own high-end LED production capacity and R & D institutions. But this requires international collaboration and support.
Power Electronics International Exhibition PCIM-Asia's organizers also told us that this LED as an independent paper plate, collected from companies and universities around the world to submit to the paper, which includes Fairchild's "low-power light controllable dimmer design, "Fairchild's" one for the primary-side LED Power regulating new single-stage PFC topology "and" efficient and precise continuous control LED driver for Research and Implementation ", etc. . Have come from Taiwan University, National Chiao Tung University, "with the passive LCD Valley-Fill bi-directional control rectifier dimmer Simulation and Design" and the Taiwan National Taipei University of Technology, "An improved utilization of LED dimming circuit" and so on. This is also seen as a particular LED is a hot topic around the world much the concern of researchers.
 
       March 2011, the Japanese Richter magnitude 9 earthquake, popular impact the electronics industry, such as the LED industry in Jiangmen is the world's major LED chip R & D base, the earthquake on the global impact of the LED industry, raised the concern of my colleagues in the industry. According to reports, in the short term, the impact of earthquakes on the electronics industry is not yet clear, the downstream manufacturers generally have 1-2 months of inventory, but if the situation of the earthquake is not restored to the June price impact will be finished after obvious. There is no current domestic and core technology, most businesses rely on domestic technology he had to do production and processing, in the earthquake, the supply of strand breaks would lead to the collapse of the domestic downstream industries.
 
        As a power electronics industry benchmark, PCIM-Asia for domestic LED industry provides a good platform for contact with foreign countries may provide the core technology, but also responded to the government's call. LED industry in China's booming development of international collaboration and support. We master the core technology for the next few years is the most important issue, but also get rid of dependence on technology the only way to power.