As the first year of the "Twelfth Five-Year Plan", China led the lighting industry in 2011 ushered in new opportunities, but also faced challenges. How will China's LED lighting industry meet opportunities and face challenges? In the next few years, where are the directions of LED R&D focus and market discussion? On May 11-13, the 5th Shanghai International New Light Source & New Energy Lighting Forum was held. Chinese and foreign political, business, and industrial people came together to discuss the development of the LED industry.
Challenges The Korean LED industry will become the strongest competitors. Zhan Yiren, director of the Institute of Electronics and Optoelectronics at the Institute of Industrial Technology, said that semiconductor lighting has developed rapidly in the last 10 years and has also changed the global industry as a whole. The proportion of the output value of Europe and the United States and Japan gradually decreased. Among them, the cost of the Japanese LED industry was fatal. Because of the sound development of the LED industry, not only good technology, but also strong production capacity and a huge market, if the production cost is too high, it will limit the growth of the industry.
The proportion of output value in Asian countries is gradually increasing. In particular, South Korea has seen rapid growth in recent years. Because South Korea not only has considerable technical potential, but also has a strong system of production capacity, with strong Samsung LED systems such as the strong, the proportion of its output value will further increase, the future will be a strong competitor.
As for Taiwan, the output value ratio is probably maintained at about 25% to 30%. However, Taiwanese companies lack a strong brand of system manufacturers, and Taiwanese companies mostly rely on OEMs. Orders will affect the development of enterprises at any time. Mainland China has more than 3,000 LED manufacturers and has a certain scale effect. Therefore, strengthening cross-strait cooperation and implementing strategic alliances will become a breakthrough for the development of China's LED industry.
At present, LED enters the field of lighting mainly in the alternative market, and asked how easy it is for LEDs to replace traditional lamps. Wang Xiwei, special assistant manager of Epistar, pointed out that the difficulty in replacing LED lighting products is related to competitors. From the ranking point of view, the LED is the most easily defeated incandescent lamp, followed by the bulb lamp, MR16, GU10 spotlights, PAR lamps, etc., the current use of led downlights is also more and more mature, the street lamp is located between the downlight, T8 Among them, the most difficult to replace is the T5, T8, mainly because the T5, T8 luminous efficiency is too high, LED is still difficult to replace the current level of technology. And a large number of T5 applications are mainly in the light band, not lighting.
In addition, Wang Zong pointed out that there is a big problem in the replacement of the market is product compatibility, and as the chip prices drop, compatibility of lighting applications up to 95%, lighting will be a better LED applications. Of course, the alternative market itself is only a transition, LED commercial lighting market will gradually mature, such as the hotel lighting market will have a larger space. In the field of mining and mining lighting, there are price problems in lamps with power exceeding 100W.
High-voltage LED products will dominate the future of LED general lighting market At this forum, Epistar, Diyuan Optoelectronics are pushing high-voltage light-emitting diode (HV LED) chips. With the same output power, the drive current required by the high voltage LED is much lower than that of the low voltage LED, and the cost of the heat sink aluminum housing can be greatly reduced. Currently, there are some drawbacks in the application of DC LED products, which need to be used together with components such as transformers, and the lifetime is only about 20,000 hours. However, the actual lifetime of LED chips is as long as 5-10 million hours. In contrast, HV LEDs require no additional transformers and require only a short drive circuit, resulting in higher device reliability, a more compact structure, and a significant reduction in application costs.
Some experts pointed out that if the use of high-voltage LED to develop LED general lighting products, the overall power consumption can be greatly reduced, thereby significantly reducing the design requirements of the thermal housing, such as we can use a thinner and lighter aluminum housing to meet the heat dissipation of LED lamps Demand, since the cost of heat-dissipating aluminum housing is one of the major cost components of LED lighting fixtures, the effective reduction in the cost of the aluminum housing also means an effective reduction in the cost of the overall LED lighting fixture. It can be seen that high-voltage LEDs can bring about an effective reduction in the cost and weight of LED lighting fixtures, but its more important significance is to significantly reduce the design requirements of the cooling system, which effectively clears the largest LED lighting fixtures into the indoor lighting market. Technical obstacles. Therefore, high-voltage LEDs will dominate the future of the LED general lighting market.
Corporate development will work together to promote the development of LED products to the modularization of this forum, many experts talked about the promotion and application of LED lighting products, all referred to a word - modular. Professor Liu Muqing of the Institute of Light Sources of the Department of Light Sources and Lighting Engineering of Fudan University combined with the operation of the LED lighting system of the Shanghai Yangtze River Tunnel pointed out that although the total failures of lighting sources, light sources and wiring of the Shanghai Changjiang Tunnel are less than 3%, the lamps cannot be opened on site. All repairs must be returned to the factory, causing great trouble for maintenance. This is one of the major problems faced by tunnels using LED lighting. Therefore, Professor Liu said that the integrated LED tunnel light has increased the difficulty in the maintenance of tunnel lights. It is suggested that the technology of modular LED tunnel lights be studied.
In the report, Peixin Energy Technology Co., Ltd. (Hon Hai Technology Group) Hu Jizhong pointed out that manufacturers at home and abroad have launched hundreds of flowers and LED lighting products in various forms. However, most products are not interchangeable, and their performance is incompatible. Mr. Guan Yong, the general manager of Zhejiang Sunshine Lighting Group Co., Ltd. also described his own confusion in the actual market, LED technology is updated too quickly, just listed products can easily become obsolete products, so that dealers are difficult to deal with. It also becomes a problem as to whether the performance of spare parts and new products can guarantee compatibility.
Therefore, Hu Jizhong pointed out that "interchangeability", "compatibility" and "universality" are the key links in the development of lighting fixtures and market acceptance. This involves a modular design. Modules are standard, independently operated, and replaceable units. Modular design means that in the product design and development process, components related to functional operation are merged into a single module based on the product architecture, and the correlation between modules is analyzed through analysis. With the working program, the design combines the required interfaces and determines the best module configuration.
It is believed that in the future, domestic manufacturers will work together to jointly enhance product design and development capabilities, promote the modularization of LED products, and promote the large-scale use of LED in general lighting.
Technology direction LED intelligence will become the scientific and technological development in the development of the new light source in the new energy lighting forum, many LED experts and professors have pointed out that LED light source is a low-voltage microelectronics products, a combination of computer technology, network communications technology , image processing technology, embedded control technology, and when it is used in the field of lighting, many companies have more to play its luminous characteristics, for its control, wireless programming, flexible and other characteristics have not been used to the maximum extent .
Zhan Yiren, director of the Institute of Electronics and Optoelectronics of the Institute of Industrial Technology, said that the characteristics of the smart part of the LED in the future will become the focus of scientific research projects of major universities and the technologies that LED can grow. Intelligence is mainly reflected in: On the one hand, in the lighting effect, how can we better control the color temperature, etc.; on the other hand, can be adapted to different climatic conditions of the LED light source, such as for agricultural lighting, adjust the plant growth period, change Animals and other production period. The future application of LED will gradually extend to surgical lamps, dental lights, endoscopes and so on. In addition, LED light source research and development will gradually increase human perception, human eye comfort and other aspects.
Coincidentally, Sichuan Zhang Xin Light Source Co., Ltd. Zhang also pointed out: "Lighting is only the original function of LED, LED connotation is very rich, can be extended further, such as LED lighting, can achieve wireless Internet access, the future does not require wires, LED Where there is electricity, therefore, LED may subvert the current communication mode in the next 5-8 years. Research institutions and companies need to do is to develop LED emerging markets, mining LED rich content."
Challenges The Korean LED industry will become the strongest competitors. Zhan Yiren, director of the Institute of Electronics and Optoelectronics at the Institute of Industrial Technology, said that semiconductor lighting has developed rapidly in the last 10 years and has also changed the global industry as a whole. The proportion of the output value of Europe and the United States and Japan gradually decreased. Among them, the cost of the Japanese LED industry was fatal. Because of the sound development of the LED industry, not only good technology, but also strong production capacity and a huge market, if the production cost is too high, it will limit the growth of the industry.
The proportion of output value in Asian countries is gradually increasing. In particular, South Korea has seen rapid growth in recent years. Because South Korea not only has considerable technical potential, but also has a strong system of production capacity, with strong Samsung LED systems such as the strong, the proportion of its output value will further increase, the future will be a strong competitor.
As for Taiwan, the output value ratio is probably maintained at about 25% to 30%. However, Taiwanese companies lack a strong brand of system manufacturers, and Taiwanese companies mostly rely on OEMs. Orders will affect the development of enterprises at any time. Mainland China has more than 3,000 LED manufacturers and has a certain scale effect. Therefore, strengthening cross-strait cooperation and implementing strategic alliances will become a breakthrough for the development of China's LED industry.
At present, LED enters the field of lighting mainly in the alternative market, and asked how easy it is for LEDs to replace traditional lamps. Wang Xiwei, special assistant manager of Epistar, pointed out that the difficulty in replacing LED lighting products is related to competitors. From the ranking point of view, the LED is the most easily defeated incandescent lamp, followed by the bulb lamp, MR16, GU10 spotlights, PAR lamps, etc., the current use of led downlights is also more and more mature, the street lamp is located between the downlight, T8 Among them, the most difficult to replace is the T5, T8, mainly because the T5, T8 luminous efficiency is too high, LED is still difficult to replace the current level of technology. And a large number of T5 applications are mainly in the light band, not lighting.
In addition, Wang Zong pointed out that there is a big problem in the replacement of the market is product compatibility, and as the chip prices drop, compatibility of lighting applications up to 95%, lighting will be a better LED applications. Of course, the alternative market itself is only a transition, LED commercial lighting market will gradually mature, such as the hotel lighting market will have a larger space. In the field of mining and mining lighting, there are price problems in lamps with power exceeding 100W.
High-voltage LED products will dominate the future of LED general lighting market At this forum, Epistar, Diyuan Optoelectronics are pushing high-voltage light-emitting diode (HV LED) chips. With the same output power, the drive current required by the high voltage LED is much lower than that of the low voltage LED, and the cost of the heat sink aluminum housing can be greatly reduced. Currently, there are some drawbacks in the application of DC LED products, which need to be used together with components such as transformers, and the lifetime is only about 20,000 hours. However, the actual lifetime of LED chips is as long as 5-10 million hours. In contrast, HV LEDs require no additional transformers and require only a short drive circuit, resulting in higher device reliability, a more compact structure, and a significant reduction in application costs.
Some experts pointed out that if the use of high-voltage LED to develop LED general lighting products, the overall power consumption can be greatly reduced, thereby significantly reducing the design requirements of the thermal housing, such as we can use a thinner and lighter aluminum housing to meet the heat dissipation of LED lamps Demand, since the cost of heat-dissipating aluminum housing is one of the major cost components of LED lighting fixtures, the effective reduction in the cost of the aluminum housing also means an effective reduction in the cost of the overall LED lighting fixture. It can be seen that high-voltage LEDs can bring about an effective reduction in the cost and weight of LED lighting fixtures, but its more important significance is to significantly reduce the design requirements of the cooling system, which effectively clears the largest LED lighting fixtures into the indoor lighting market. Technical obstacles. Therefore, high-voltage LEDs will dominate the future of the LED general lighting market.
Corporate development will work together to promote the development of LED products to the modularization of this forum, many experts talked about the promotion and application of LED lighting products, all referred to a word - modular. Professor Liu Muqing of the Institute of Light Sources of the Department of Light Sources and Lighting Engineering of Fudan University combined with the operation of the LED lighting system of the Shanghai Yangtze River Tunnel pointed out that although the total failures of lighting sources, light sources and wiring of the Shanghai Changjiang Tunnel are less than 3%, the lamps cannot be opened on site. All repairs must be returned to the factory, causing great trouble for maintenance. This is one of the major problems faced by tunnels using LED lighting. Therefore, Professor Liu said that the integrated LED tunnel light has increased the difficulty in the maintenance of tunnel lights. It is suggested that the technology of modular LED tunnel lights be studied.
In the report, Peixin Energy Technology Co., Ltd. (Hon Hai Technology Group) Hu Jizhong pointed out that manufacturers at home and abroad have launched hundreds of flowers and LED lighting products in various forms. However, most products are not interchangeable, and their performance is incompatible. Mr. Guan Yong, the general manager of Zhejiang Sunshine Lighting Group Co., Ltd. also described his own confusion in the actual market, LED technology is updated too quickly, just listed products can easily become obsolete products, so that dealers are difficult to deal with. It also becomes a problem as to whether the performance of spare parts and new products can guarantee compatibility.
Therefore, Hu Jizhong pointed out that "interchangeability", "compatibility" and "universality" are the key links in the development of lighting fixtures and market acceptance. This involves a modular design. Modules are standard, independently operated, and replaceable units. Modular design means that in the product design and development process, components related to functional operation are merged into a single module based on the product architecture, and the correlation between modules is analyzed through analysis. With the working program, the design combines the required interfaces and determines the best module configuration.
It is believed that in the future, domestic manufacturers will work together to jointly enhance product design and development capabilities, promote the modularization of LED products, and promote the large-scale use of LED in general lighting.
Technology direction LED intelligence will become the scientific and technological development in the development of the new light source in the new energy lighting forum, many LED experts and professors have pointed out that LED light source is a low-voltage microelectronics products, a combination of computer technology, network communications technology , image processing technology, embedded control technology, and when it is used in the field of lighting, many companies have more to play its luminous characteristics, for its control, wireless programming, flexible and other characteristics have not been used to the maximum extent .
Zhan Yiren, director of the Institute of Electronics and Optoelectronics of the Institute of Industrial Technology, said that the characteristics of the smart part of the LED in the future will become the focus of scientific research projects of major universities and the technologies that LED can grow. Intelligence is mainly reflected in: On the one hand, in the lighting effect, how can we better control the color temperature, etc.; on the other hand, can be adapted to different climatic conditions of the LED light source, such as for agricultural lighting, adjust the plant growth period, change Animals and other production period. The future application of LED will gradually extend to surgical lamps, dental lights, endoscopes and so on. In addition, LED light source research and development will gradually increase human perception, human eye comfort and other aspects.
Coincidentally, Sichuan Zhang Xin Light Source Co., Ltd. Zhang also pointed out: "Lighting is only the original function of LED, LED connotation is very rich, can be extended further, such as LED lighting, can achieve wireless Internet access, the future does not require wires, LED Where there is electricity, therefore, LED may subvert the current communication mode in the next 5-8 years. Research institutions and companies need to do is to develop LED emerging markets, mining LED rich content."
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