The road to LED development: "Technology innovation + policy guidance" can not be less?
In 2003, China's total LED output was 20 billion. After ten years of industry development, the number of domestic and international Yanhe chip manufacturers has grown to nearly one hundred. In 2011, the annual LED output value was 156 billion yuan, of which the epitaxial and chip output value was 6.5 billion yuan.
Ten years ago, the LED industry, which was almost marginalized, ushered in a thriving spring, relying on the emergence of blue light and breakthroughs in high-power technology, as well as strong policy support. At present, the LED industry has become one of the most promising emerging industries, and it is an important part of the new strategic emerging technologies of information technology and energy conservation and environmental protection. After 10 years of development, China's LED industry has grown rapidly, its technological innovation capability has been continuously improved, its application fields have gradually expanded, and a number of key enterprises have grown up, and many companies have successfully listed. Industrial development has begun to take shape and become one of the fastest growing industries.
Significant results
China's LED industry started in the 1970s, and the real development in the past 10 years. In 2003, the Ministry of Science and Technology, the former Ministry of Information Industry, the Ministry of Education, and the Ministry of Construction jointly organized and implemented the National Semiconductor Lighting Project. Subsequently, the National Development and Reform Commission and the Ministry of Finance continued to increase investment in the LED industry and applications. Under the impetus of various ministries and commissions, China's LED industry has made rapid progress, and the industrial scale has maintained a growth rate of around 30%. By 2011, the total output value of the whole industry was 150 billion yuan. "In 2003, the domestic and international Yanhe chip companies were only Xiamen Sanan, Dalian Lumei, Shanghai Blu-ray, Sapphire, Shandong Huaguang, Jiangxi Xinlei, Shijiazhuang 13 and so on. In 2003, China's total LED output was 20 billion, after 10 years of industry development, the domestic and international Yanhe chip manufacturers have grown to nearly 100. In 2011, the LED output value was 156 billion yuan, of which the epitaxial and chip output value was 6.5 billion yuan." Yaweilang Optoelectronics (China) Co., Ltd. Dr. Yan Chunhui, president of the company, told reporters.
While the industrial scale has maintained rapid growth, the technical level has also been significantly improved. The luminous efficiency of mass-produced devices has increased to 110 lm/W or more, and the international advanced level has been shrinking. The packaging technology is developing towards flip-chip and integrated packaging, which is close to the international advanced level; The metal organic source and sapphire substrate independently developed by the company have been applied on a large scale, and the metal MOCVD prototype has been successfully developed. In particular, China's silicon-based (silicon substrate) LED technology level and industry have made breakthroughs.
Nanchang University National Silicon-based LED Engineering Technology Research Center at a current density of 35A/cm2, silicon substrate blue LED device electro-optical conversion power efficiency of 50% to 55%, packaged into a cool white LED device, its luminous lumen efficiency reached 120lm / W ~130lm/W, reached the current mainstream level of sapphire LED. At a current density of 5A/cm2, the silicon substrate blue LED device has an electro-optical conversion power efficiency of 55% to 60%, and is packaged into a cool white LED device, and its luminous lumen efficiency reaches 145 lm/W to 160 lm/W. From small size (0.2mm × 0.2mm) chips to power chips (1.1mm × 1.1mm), small batch production has been realized, which are applied to color screens, digital tubes, flashlights, bulbs, street lamps, etc. So far, China is in an international leading position in both silicon-based LED research and industry.
Policy support
The LED industry is the main content of the country's strategic emerging industries. In recent years, the state has introduced a number of incentive policies. The current good development of the industry is inseparable from the relevant policies introduced by the state to encourage industrial development. In order to support the development of LED and semiconductor lighting industry, the State Council, the National Development and Reform Commission, the Ministry of Industry and Information Technology, the Ministry of Science and Technology and other relevant ministries and commissions have given priority support in the areas of technological independent innovation, technological upgrading and promotion, and promotion and application.
Chen Hesheng, president of Anhui Zerun Optoelectronics Co., Ltd., said in an interview that the support methods of the LED industry at all levels of government and institutions have shifted from investment support to market application and promotion. "Up to the State Council's latest LED energy-saving lighting product subsidy model, down to the current local governments gradually faded out the MOCVD production line investment subsidy model and turned to support the region's enterprises to take the lead in the region's emerging LED energy-saving lighting market, all supporting the application side Promoting the replacement of the investment side has become the main way to support the development of the LED industry. This is not only an important indicator of the transition period of industrial development, but also means that the LED lighting market has reached the eve of large-scale market application," Chen Hesheng said.
As an important measure for the transformation of economic development model and industrial structure adjustment, LED and semiconductor lighting are listed as key contents in the seven strategic emerging industry plans proposed by the state. On May 16 this year, the State Council executive meeting decided to implement the energy-saving and welfare project. The state finance subsidized energy-saving for four products, including high-efficiency lighting (including energy-saving lamps and LED lights). On July 19, the National Development and Reform Commission released the 2012/2013 financial subsidy policy to promote semiconductor (LED) lighting products. In order to support technological innovation and technological advancement of LED and semiconductor lighting, the Ministry of Industry and Information Technology has arranged electronic information industry development fund projects for many years as an important measure to support independent technological innovation of LEDs for key technological breakthroughs, process technology development and testing. Significant results have been achieved in the development of methodologies and the improvement of service capabilities.
The bottleneck problem that plagues industrial development under the new situation is still very prominent. In the short term, the industry has staged and structural overcapacity. In the long run, the core technologies that have plagued industrial development have not yet achieved fundamental breakthroughs, and the industrial structure is still unreasonable.
As a strategic emerging industry, the development of the LED industry will not be smooth, and the industry is at a critical stage of cultivation and development. The development of the LED industry must follow a certain life cycle and development law. After the rapid development of the industry, it must undergo certain adjustments. Technological innovation and policy guidance are the dual driving forces for the development of the LED industry.
Ten years ago, the LED industry, which was almost marginalized, ushered in a thriving spring, relying on the emergence of blue light and breakthroughs in high-power technology, as well as strong policy support. At present, the LED industry has become one of the most promising emerging industries, and it is an important part of the new strategic emerging technologies of information technology and energy conservation and environmental protection. After 10 years of development, China's LED industry has grown rapidly, its technological innovation capability has been continuously improved, its application fields have gradually expanded, and a number of key enterprises have grown up, and many companies have successfully listed. Industrial development has begun to take shape and become one of the fastest growing industries.
Significant results
China's LED industry started in the 1970s, and the real development in the past 10 years. In 2003, the Ministry of Science and Technology, the former Ministry of Information Industry, the Ministry of Education, and the Ministry of Construction jointly organized and implemented the National Semiconductor Lighting Project. Subsequently, the National Development and Reform Commission and the Ministry of Finance continued to increase investment in the LED industry and applications. Under the impetus of various ministries and commissions, China's LED industry has made rapid progress, and the industrial scale has maintained a growth rate of around 30%. By 2011, the total output value of the whole industry was 150 billion yuan. "In 2003, the domestic and international Yanhe chip companies were only Xiamen Sanan, Dalian Lumei, Shanghai Blu-ray, Sapphire, Shandong Huaguang, Jiangxi Xinlei, Shijiazhuang 13 and so on. In 2003, China's total LED output was 20 billion, after 10 years of industry development, the domestic and international Yanhe chip manufacturers have grown to nearly 100. In 2011, the LED output value was 156 billion yuan, of which the epitaxial and chip output value was 6.5 billion yuan." Yaweilang Optoelectronics (China) Co., Ltd. Dr. Yan Chunhui, president of the company, told reporters.
While the industrial scale has maintained rapid growth, the technical level has also been significantly improved. The luminous efficiency of mass-produced devices has increased to 110 lm/W or more, and the international advanced level has been shrinking. The packaging technology is developing towards flip-chip and integrated packaging, which is close to the international advanced level; The metal organic source and sapphire substrate independently developed by the company have been applied on a large scale, and the metal MOCVD prototype has been successfully developed. In particular, China's silicon-based (silicon substrate) LED technology level and industry have made breakthroughs.
Nanchang University National Silicon-based LED Engineering Technology Research Center at a current density of 35A/cm2, silicon substrate blue LED device electro-optical conversion power efficiency of 50% to 55%, packaged into a cool white LED device, its luminous lumen efficiency reached 120lm / W ~130lm/W, reached the current mainstream level of sapphire LED. At a current density of 5A/cm2, the silicon substrate blue LED device has an electro-optical conversion power efficiency of 55% to 60%, and is packaged into a cool white LED device, and its luminous lumen efficiency reaches 145 lm/W to 160 lm/W. From small size (0.2mm × 0.2mm) chips to power chips (1.1mm × 1.1mm), small batch production has been realized, which are applied to color screens, digital tubes, flashlights, bulbs, street lamps, etc. So far, China is in an international leading position in both silicon-based LED research and industry.
Policy support
The LED industry is the main content of the country's strategic emerging industries. In recent years, the state has introduced a number of incentive policies. The current good development of the industry is inseparable from the relevant policies introduced by the state to encourage industrial development. In order to support the development of LED and semiconductor lighting industry, the State Council, the National Development and Reform Commission, the Ministry of Industry and Information Technology, the Ministry of Science and Technology and other relevant ministries and commissions have given priority support in the areas of technological independent innovation, technological upgrading and promotion, and promotion and application.
Chen Hesheng, president of Anhui Zerun Optoelectronics Co., Ltd., said in an interview that the support methods of the LED industry at all levels of government and institutions have shifted from investment support to market application and promotion. "Up to the State Council's latest LED energy-saving lighting product subsidy model, down to the current local governments gradually faded out the MOCVD production line investment subsidy model and turned to support the region's enterprises to take the lead in the region's emerging LED energy-saving lighting market, all supporting the application side Promoting the replacement of the investment side has become the main way to support the development of the LED industry. This is not only an important indicator of the transition period of industrial development, but also means that the LED lighting market has reached the eve of large-scale market application," Chen Hesheng said.
As an important measure for the transformation of economic development model and industrial structure adjustment, LED and semiconductor lighting are listed as key contents in the seven strategic emerging industry plans proposed by the state. On May 16 this year, the State Council executive meeting decided to implement the energy-saving and welfare project. The state finance subsidized energy-saving for four products, including high-efficiency lighting (including energy-saving lamps and LED lights). On July 19, the National Development and Reform Commission released the 2012/2013 financial subsidy policy to promote semiconductor (LED) lighting products. In order to support technological innovation and technological advancement of LED and semiconductor lighting, the Ministry of Industry and Information Technology has arranged electronic information industry development fund projects for many years as an important measure to support independent technological innovation of LEDs for key technological breakthroughs, process technology development and testing. Significant results have been achieved in the development of methodologies and the improvement of service capabilities.
The bottleneck problem that plagues industrial development under the new situation is still very prominent. In the short term, the industry has staged and structural overcapacity. In the long run, the core technologies that have plagued industrial development have not yet achieved fundamental breakthroughs, and the industrial structure is still unreasonable.
As a strategic emerging industry, the development of the LED industry will not be smooth, and the industry is at a critical stage of cultivation and development. The development of the LED industry must follow a certain life cycle and development law. After the rapid development of the industry, it must undergo certain adjustments. Technological innovation and policy guidance are the dual driving forces for the development of the LED industry.
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