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It is predicted that the global LED market will grow from 3.2 billion US dollars in 2004 to 5.6 billion US dollars in 2008. Among them, the output value of high-brightness LED market will increase from 1.6 billion US dollars to 2.64 billion US dollars, and the ultra-high brightness LED market will be from 2006. It will grow rapidly and will account for 22% of the global market in 2008. The ever-expanding application market and continuous innovation of technology have provided a good development environment for China's LED industry.
High energy efficiency is the key to rapid development
The most critical reason for LEDs to have such a broad business prospect is undeniably the unique feature of LEDs that are highly energy efficient. As the third-generation semiconductor lighting material, the life of LED is 100 times that of ordinary incandescent lamps, energy consumption is much smaller than incandescent lamps, and the replacement cost is lower. It has the advantages of volume filial safety, pollution-free, maintenance-free, fast response, etc. Subsidiary advantages.
For this reason, the application of LEDs has also expanded from the original display, mobile phone and LCD background light source to more profitable applications, such as general lighting, theater lighting, car headlights, brake lights and traffic lights. .
In May this year, many scholars and entrepreneurs made good suggestions on this in the "2007 New Light Sources and New Energy Forum" jointly sponsored by the National Semiconductor Lighting Engineering R&D and Industry Alliance and the Yangzhou Municipal Government in Yangzhou. Jiang Minghua, a professor at Shandong University and a member of the Chinese Academy of Sciences, made an appeal, hoping that LED should enter the field of streetlights as soon as possible, and vividly compares "solar and semiconductor lighting is a pair of green couples". To accelerate the solution of existing problems, we must do the development of solar street lamps. Work hard.
According to some data, the luminous point of the facade of the Shanghai Oriental Pearl TV Tower was originally a traditional light source. The power of a luminous point is 200 watts, and the brightness of the traditional light source will gradually weaken. So since the beginning of 2005, the TV tower has replaced the original light source with LED. Compared with the original light source, the front light-emitting area of ​​the LED is increased by 5 times, and the luminous efficiency is also increased by 5 times. However, the power of one light-emitting point is only 50 watts, and the power of nearly 160,000 degrees can be saved in one year.
For the energy saving and environmental protection characteristics of LED, Guo Yuguo, president of Jiangsu Wenrun Photoelectric Co., Ltd. has a unique understanding. He believes that at present, we are in an era where people have the pursuit, ideas and ability to improve their quality of life. They are also an era in which the environment and the resources are generally felt to be under pressure. This is very big in many cases. A pair of contradictions, and the development of LED technology and industry can bring people hope: we can achieve our goal of pursuing a higher quality of life without increasing pressure on the environment or even reducing stress. "Maybe, the biggest development opportunity for the LED packaging industry and the entire LED industry is coming from this." Guo Yuguo believes.
We can already not only imagine, but also have a life at your fingertips: in the city after sunset, we can enjoy the chic charm of the shining of the Chinese lanterns and the change of color without the need to worry about wasting energy or even With a sense of guilt, when we return home, we can freely choose color or brightness without psychological burden according to our own mood or needs. In this sense, we have stepped into the threshold of the semiconductor lighting era with one foot.
Ding Chenglong, deputy general manager of Beijing Changdian Zhiyuan Optoelectronics Co., Ltd. said that for China's energy conservation, emission reduction and sustainable development, we must vigorously promote the LED industry and semiconductor lighting, and vigorously promote the company's strict product reliability and longevity. Its application contributes to the sustainable development of all mankind.
Pay attention to constraining the outstanding development of LED
In 2006, it was a year of rapid improvement in the electro-optical conversion efficiency of LED blue and blue lasers abroad. The white light source made of blue light-excited phosphors was from 48 lm/W at the beginning of the year to 90 lm/W-100 lm/W at the end of the year. Far beyond this level, the blue laser DVD has been seen at a high price.
With the increase of “lumen/watt†and the decline of “price/wattâ€, the application field will be from high-end markets such as car exterior lights – brake lights, turn signals, small lights, low beam lights, front and rear fog lights, interior lighting And car dashboard lighting and large-screen display, highway, railway signal display, to the low-end market such as traffic signal display, street lights, miner's lamp, garden lights, lawn lights, projection lights, decorative lights, indoor lighting and so on.
The ever-expanding application market and continuous innovation of technology have provided a good development environment for China's LED industry. Based on the development status of semiconductor lighting, China has formulated a semiconductor lighting industry development plan and technology development route in line with its own development, and has given strong support to the development of the LED industry, providing a good platform for the development of the LED industry. The LED packaging industry has relatively low capital and technical requirements, and will be better developed in this good environment. However, most of the equipment in China's LED packaging industry relies on imports. The scale of enterprises is small, the investment in packaging technology is insufficient, and the overall level of technology is not high, which seriously restricts the development of the industry. In this regard, Jiang Guozhong, vice president of Jiangxi Lianchuang Optoelectronics Technology Co., Ltd. suggested that we must grasp the development opportunities, must increase the research and development and industrialization of packaging equipment, conduct in-depth research on packaging technology, and adhere to independent innovation.
At present, there are many problems that restrict the development of LED packaging enterprises, such as scale problems and independent intellectual property rights. In addition, the all-round communication between packaging companies and traditional lighting and application companies cannot be ignored. This includes unified understanding, standardization, design, technology, and standards. Chairman of Xiamen Hualian Electronics Co., Ltd., Chairman of the National Semiconductor Lighting Engineering R&D and Industry Alliance, and Chairman of the Optoelectronics Branch of China Optical Optoelectronics Industry Association Fan Yuxi stressed in an interview with China Electronics News that facing LED technology The situation of accelerating progress, mutual understanding and communication between the packaging and application industries has become an urgent issue. This is necessary for China's LED lighting products to truly enter traditional lighting and develop healthily and take less detours.
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October 12, 2023