As the birth of the "cold door" led, can be described as a trek, hard anomalies. Nowadays, with the jump in technology, it has been called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life and small size, and can be widely used in various fields such as indication, display, decoration, backlight, general illumination and urban night scene. Therefore, in the current economic situation and the energy crisis, it has become a highly acclaimed new form of lighting.
In recent years, various countries around the world have launched a fierce technical competition around the research and application of led. The United States has invested $500 million since 2000 to implement the National Semiconductor Lighting Program. The European Union also announced a similar plan in July 2000. With the support of the "863" program, China first proposed the development of semiconductor lighting plans in June 2003.
China's semiconductor lighting industry
863 plan lays the foundation of China's led industry
Before 2002, domestic LED chips were completely dependent on imports. After the launch of the National Semiconductor Lighting Project in 2003, GaN power chips were built from scratch, and led to the development of low-power chips, gradually replacing imports. In 2006, the domestic demand for LED chips was 66 billion, and the import volume was 37 billion. The localization rate has reached 44%. It is estimated that in 2007, the number of low-power GaN chips for domestic white light lighting will reach 8 billion, the localization rate will exceed 30%, and the localization rate of power GaN chips will reach 20%.
In 2003, the “Eleventh Five-Year Plan†863 major project of semiconductor lighting has represented the highest level of domestic R&D since its implementation. Nowadays, China's LED epitaxial materials, chip manufacturing, device packaging, phosphors, etc. have all shown unit technology with independent technology property rights. Some core technologies are original, and initially formed from upstream materials, midstream chip preparation, downstream device packaging and The relatively complete R&D and industrial system, such as integrated application, laid the foundation for the bigger and stronger LED industry in China.
As of the end of 2008, the National Semiconductor Lighting Project has made significant progress: some original technologies have emerged in exploratory, cutting-edge material growth and device research. Domestically developed 280 nm UV LED device, 20 mA output power reaches the milliwatt level, at the international advanced level; non-polar GaN epitaxial growth, X-ray diffraction half-peak width decreased from the original 780 arc seconds to 559 arc seconds, this value is one of the best results reported internationally; for the first time to achieve large-area nano and thin film photonic lattice led, 20mA room temperature continuous driving small chip output power increased from 4.3mW to 8mW; all phosphorescent The luminous efficiency of the laminated white OLED has reached 45 lm/W; the 6-piece and 7-piece MOCVD prototypes have been successfully developed and process validation is underway.
China's LED industry has also made major breakthroughs in key technologies for industrialization. The proportion of domestic chip replacement imports has increased year by year, and has been close to 50% so far. The power type white LED package is close to the international advanced level and has become an important LED packaging base in the world. The enterprise-based 100 lumens/watt led manufacturing technology is progressing rapidly. Through the graphic substrate technology and the improved epitaxial layer structure, the power-type chip package completed on the industrialized line reaches 75 lm/W. The efficiency of the power-type silicon substrate LED chip with independent intellectual property rights is close to 60 lm/W, which is at the international advanced level.
At the same time, the research and major applications of large-scale system integration technology are progressing smoothly. The product types and scales of the products are at the forefront of the world, and have become the largest producer and exporter of LED full color display, solar led, landscape lighting and other application products. Tianjin FAW Xiali and Changzhou Xingyu have developed led car headlights. In July 2008, Hisense’s first 42-inch ultra-thin LED-backlit LCD TV was launched. It has sold nearly 10,000 units, indicating 40% of world production. China's consumer electronics products began to use LED technology on a large scale.
The implementation of large-scale system integration technology represented by the Olympic demonstration project has promoted product integration innovation and demonstration applications, showing that it has achieved energy-saving and environmental protection effects and improved the recognition of the international community. In August last year, the opening ceremony of the Beijing Olympic Games and the LED landscape lighting and full-color display screens used by the venues set a precedent for the large-scale use of LED lighting technology in the history of the Olympic Games. LED became an important force supporting the Green Olympics and the Olympic Games. According to estimates, only 50,000 square meters of water landscape lighting, compared with fluorescent lamps, the annual energy saving of 745,000 degrees, energy saving of more than 70%. Power type led (with foreign chip package up to 80-90 lumens / watt) has begun to be applied in lighting fields such as secondary road lights, parking lots, gas stations, etc., can save 30-50% of electricity, and the overall cost of procurement and operation is about 3 The year is about the same as the traditional light source, and the light efficiency is increased by about 30% every year, and the price is reduced by 40%. About 50,000 ç›led street lamps have been demonstrated in more than 20 cities, and it has become possible to use LED for energy-saving renovation of municipal lighting.
Significant achievements have been made in the promotion of standard coordination, and 12 national standards and 7 industry standards are being approved. In particular, members of the organization spontaneously raised funds to deal with the US “337 investigation†patent litigation. The Alliance has also actively utilized two markets and two resources to promote international cooperation. It has successfully organized the 5th International Forum and Exhibition of Semiconductor Lighting, with a total of 3,000 participants. Participate in the American Solid State Lighting Systems and Technology Alliance (ASSIST), and participate in international conferences as an opportunity to coordinate and promote international standardization.
Through the implementation of major projects in semiconductor lighting engineering, it is expected that in 2010, China is expected to break through the core technologies of materials and devices, so that the luminous efficiency of white light reaches 130lm/W, the industrialization level reaches 100lm/W, and more than 200 invention patents are applied to further reduce costs. In the main links of the industrial chain, 2-3 leading brand enterprises will be formed, and the application will begin to enter the field of general lighting. The scale of related industries will reach 100 billion yuan, and the annual energy saving will be 50 billion kWh, eventually forming independent intellectual property rights and international competitiveness. China's semiconductor lighting emerging industry.
Ten Cities and Wanlings Blowing China's LED Industry Assembly Number
It is understood that in 2008 China's semiconductor lighting industry output value of nearly 70 billion, the chip localization rate of nearly 50%. At present, there are more than 3,000 semiconductor lighting related enterprises in China, and there have been downward extensions of upstream and midstream enterprises. The signs of mergers and acquisitions have emerged. In the first quarter of this year, orders for packaging and application companies rebounded rapidly. In the context of the financial crisis, China's semiconductor lighting industry presented The trend of rising against the trend. In 2009, the “Ten Cities and Ten Thousand Miles†application demonstration project will bring a historical opportunity for rapid development of the semiconductor lighting industry.
On May 21, 2009, the Ministry of Science and Technology organized a seminar on the Pilot Work Program for the Pilot City of “Ten Cities and Ten Thousands†Semiconductor Lighting Application Engineering. In 2009, on June 19th, the “Ten City Wanhao†semiconductor lighting application project of the Ministry of Science and Technology was launched in Dalian. 21 cities including Dalian, Shenzhen, Shanghai, Tianjin and Hangzhou have become pilot cities for “Ten Cities and Ten Thousands†semiconductor lighting application projects. On August 31, the launching ceremony of the pilot project of the “Ten Cities and Ten Thousands†semiconductor lighting application project was held in Weifang, Shandong Province, and the national campaign of the “Ten Cities and Ten Thousand Miles†project was announced.
The goal of “Ten Cities and Ten Thousands†semiconductor lighting application project is to apply 6 million semiconductor lighting products to municipal projects in the pilot cities in 2011, directly driving domestic demand by 15 billion yuan; by 2015, semiconductor lighting will enter 30% of the general lighting market. . Semiconductor lighting (led) is considered to be the most promising high-tech green industry in the 21st century due to its environmental protection, energy saving and long life. The development of LED lighting has become the focus of the global lighting industry.
2009 is known by the industry as the first year of white light led into general lighting, and the financial crisis has highlighted its importance. The implementation of the “Ten Cities and Ten Thousand Miles†project marks the gradual entry of the semiconductor lighting industry into the main battlefield of the industrial economy. Nowadays, the implementation of semiconductor lighting projects led by 21 cities is booming. In this interview, we have taken a look at the implementation status of the “Ten Cities and Ten Thousand Cities†project in several typical cities for your reference.
In 2005, this magazine has carried out detailed follow-up reports on the LED industry, and has published a series of reports to prospectively reveal the development of the upcoming LED industry.
Ten years of grinding a sword, four years is not short. Today, led is entering the people's attention with great fanfare. Enter "led", the results from the search engine may be 80-90% about the led backlight TV. Although LED lighting seems to be hiding in the "deep", but it can not hide the fact that it is hot.
Dongguan: "Thousands of Miles" and "Ten Cities and Ten Thousand Cities" are in parallel
In response to the new problems faced by the LED lighting application pilot project, the “Photovoltaic Industry Development†forum was held in Dongguan Science and Technology Museum recently. Experts from the Institute of Electronics of the Ministry of Industry and Information Technology and Tsinghua University professors were invited to highlight the future development trend of the LED industry and how to Improve the competitiveness of the LED industry cluster in the international market.
According to the reporter, He Jianzhong, a high-tech industry branch of the Dongguan Science and Technology Bureau, learned that the LED demonstration project is one of the tasks in the major special guidelines of Guangdong Province. In the specific operation, encourage the first road section or the relevant road section. Rectification project. The target for 2008 is 5000 ç› led lights, but only 3,000 布 is laid out due to reality, and the remaining tasks continue to roll as the next round of plans. The target for 2009 is 9000 baht, implemented in 6-7 towns. As a large-scale science and technology special energy-saving emission reduction project in Guangdong Province, the LED street lamp demonstration project is a "thousands of thousands of miles" project.
At the beginning of this year, the Guangdong Provincial High-power LED Street Light Demonstration Promotion Conference was held in Dongguan City, and the “Tianli 100,000†high-power LED street lamp industrialization demonstration and promotion project was launched. This project refers to the demonstration and promotion project of led street lamps with a total mileage of 1,500 km and a scale of about 100,000 in Guangzhou, Dongguan, Foshan, Zhongshan, Zhaoqing and Shantou. It is announced to the world that LED lighting has moved from traditional landscape lighting to road lighting and has been successfully scaled up.
Promoting the popularization of led street lamps and developing and expanding the LED industry are of great significance for the adjustment of industrial structure and energy conservation and emission reduction in Guangdong Province. In order to enlarge and strengthen the LED industry in Guangdong Province, Guangdong first formulated the technology roadmap for the LED industry, and defined the technology needs, priority themes, time nodes and development paths of the LED industry in the next five years and beyond. Secondly, the organization and implementation of the "green lighting project": First, continue to implement the "energy-saving emission reduction and renewable energy" major science and technology projects, focusing on high-power chip manufacturing, lighting structure optimization design and chip cooling and other key technologies. The second is to plan and implement the “Thousand Miles of 100,000†high-power LED street lamp industrialization demonstration and promotion project. The third is to build a led industrialization base, focus on optimizing the regional layout of the LED industry, improve the industrial supporting capacity, and guide the transformation and upgrading of the traditional lighting industry. Then further optimize the policy environment, improve the financial service system, and promote the organic integration of technology capital, industrial capital and financial capital. Fully promote the "enterprise + user + bank" model, and introduce more strategic investment partners for the large-scale application of LED street lighting products.
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