The potential huge economic and social benefits of the LED lighting industry have led to the development of development plans and support policies in various countries around the world. These policies and plans have led to an increase in R&D investment and industrial investment, which has greatly promoted the rapid development of the LED lighting industry and market. . Some experts believe that it is difficult to form a scale in the short-term development of LED lighting through its own market. It must be supported by the national and local governments, and the LED lighting market is expected to enter a new development process. Not long ago, China’s "Electronic Information Industry Adjustment and Revitalization Plan" promulgated by the State Council also clearly proposed to vigorously develop energy-saving and environmentally-friendly LED lighting products. The Ministry of Science and Technology has officially launched the "Ten Cities and Ten Thousand Miles" LED lighting application project nationwide. However, due to the current high cost of LED lighting, at the same time, it faces a series of problems such as lack of standards, heat dissipation performance to be improved, and power supply drive needs to be redesigned.
Step by step and take less detours
At the beginning of this year, in order to expand domestic demand, promote the development of China's LED industry, and reduce energy consumption, the Ministry of Science and Technology launched the “Ten Cities and Ten Thousands†semiconductor lighting application demonstration city program, which covers 21 cities including Beijing, Shanghai, Shenzhen and Wuhan. There are similar LED lighting popularization or R&D programs abroad, such as the US “Solid State Lighting Planâ€, the European “Rainbow Plan†and Japan’s “21st Century Lighting Planâ€. "Ten Cities and Ten Thousand Cities" can be compared with them in terms of scale and intensity. So what problems should China pay attention to when promoting LED lighting applications, especially street lighting applications? What are the similar LED lighting popularization or R&D plans in foreign countries that are worth learning from? Liang Bingwen, chairman of Suzhou Najing Optoelectronics Co., Ltd. and researcher of Suzhou Institute of Nanotechnology, Chinese Academy of Sciences, stressed in an interview with China Electronics News that when promoting the application of LED street lamps, it should be noted that the application of LED street lamps should be focused on the secondary roads. , sidewalks, squares and gardens. Because the luminous flux of LEDs is almost linear with cost, LEDs are currently not suitable for high luminous flux applications. Large-scale promotion should be applied to main roads and high pole lights when the time is ripe. "In foreign countries, such as San Francisco and Los Angeles in the United States are also promoting LED Street Lights, their practices are relatively safe. First test, test and on-site assessment, then propose changes and quickly establish standards, so that less detours and avoid blindness The negative impact will be achieved. Once the pilot is successful, it can be widely promoted in a large area. These practices are worth learning from domestic counterparts.†Liang Bingwen said.
The Ministry of Science and Technology launched the "Ten Cities and Ten Thousand Miles" semiconductor lighting application project, which has undoubtedly played a huge role in promoting the development of the LED industry. Fan Yuxi, chairman of Xiamen Hualian Electronics Co., Ltd. believes that in the specific implementation process, it is necessary to pay attention to several problems: First, LED Street Lights should be gradually promoted as new things, and the scope of application must be compatible with the current state of technology. Starting from the community and the trunk roads, it is difficult to gradually promote the main roads, tunnels and other applications. Secondly, the streetlight demonstration should formulate corresponding technical specifications and testing methods. The expert group should be extensive and cover experts in the fields of lighting, semiconductor, electronics and materials. It is best to advance in two steps. The first step is the demonstration period, highlighting the product quality, strictly controlling the quality during the implementation process, encouraging technological innovation, avoiding price bidding, and taking product performance indicators, localization rate of products and enterprises. Qualification is an important consideration. The second step is the market competition period. Through several rounds of demonstration applications, more perfect LED street lamp specifications or standards will be formulated. At the same time, LED street lamp manufacturing enterprises should set higher technical thresholds and quality assurance thresholds in order to organize according to market mechanism. price competition. "From the similar LED lighting popularization or research and development plans abroad, we can see the importance of foreign technology innovation. The major countries fund more than 100 million US dollars in research and development of LED lighting every year. In addition, the norms or standards guiding industrial development in these countries are early. The roadmap is used to guide the indicators that are developing rapidly. These are worth learning from,†Fan Yuxi said.
Ding Chenglong, deputy chairman of the China Semiconductor Industry Association's Division of Discrete Devices and general manager of Beijing Dingshenglong Technology Development Center, believes that it is necessary to pay attention to the false and true, only to prevent counterfeiting, and must select products based on the data and reports of third-party testing institutions recognized by the state. Ning is lacking, and don't break the reputation of LED lighting.
There are steps to plan standards
The standard issue is one of the most concerned topics in the industry, and the delay in the development of national standards is extremely detrimental to industrial development. There are many reasons why the standard can’t be called out. Li Mantie, general manager of Shenzhen Lehman Optoelectronics Technology Co., Ltd. believes that the LED standard needs to be gradual. LED is an emerging industry. The establishment of standards requires a process. Many LED products have not yet been finalized, and the technology is developing with each passing day. Therefore, LED standards can be formulated step by step and according to the development progress of the LED industry. Li Mantie believes that the development of LED local standards should be encouraged, so that more LED companies can increase their standard awareness and technology level through participation.
LED lighting standards cover a wide range of applications, from luminaires to devices, with modules and components. There are also many departments involved. It is difficult for all departments to reach a consensus in the process of setting standards. The contradiction between the lighting electrical industry and the electronics industry is particularly prominent. In the process of standard setting, the technical content of LED life definition and test method for obtaining reliability characteristic parameters are different. The two sides have different opinions on the traditional perspectives of different industries. Zhang Wansheng, a professor at the 13th Research Institute of China Electronics Technology Group, gave an example to the reporter that the life defined in the draft of the electrical lighting industry standard is the cumulative time from the lighting of a single general lighting to the failure. The lifetime defined in the Electronic Industry Technical Dictionary is a statistical probability value for a batch of LED devices from the start of operation to failure. The former definition is only applicable to traditional light sources such as incandescent lamps and fluorescent lamps, and it is obviously not suitable for LED devices. In order to facilitate the communication and coordination of the two industries and speed up the pace of standard setting, it is recommended that the Ministry of Industry and Information Technology first divide the scope and boundaries of the LED lighting standards in the two industries. The lighting appliance industry mainly focuses on the application products of LED lighting. The electronics industry focuses on devices, modules and modules for LED lighting. Thoroughly reverse the situation that everybody wants to pack the LED lighting world and involve each other, and do a good job of division of labor, which is the key to speeding up the pace of LED lighting standards.
Chen Hesheng, president of Anhui Wenrun Optoelectronics Co., Ltd., believes that the formulation of local standards has great positive significance in the current absence of national standards. Especially in the current streetlight application, due to the promotion of the “Ten Cities and Ten Thousand Miles†plan, the enthusiasm of local governments and enterprises is highly risky. One of the biggest hidden concerns is the level of manufacturing companies involved. There are a lot of temporary “out of the team†teams. In the same project, the problems of installation engineering, streetlight assembly and LED technology are different. Under such a background, the formulation of local standards, because of its relatively standardized requirements in terms of procedures and participants, has positive significance in the unified evaluation of product technical indicators, and can also produce various links in the production process. The reverse force is conducive to industry norms and has a positive effect on the formulation of final national standards.
Encology
Is the current government-led LED lighting promotion model sustainable? For the promotion and development of the LED lighting industry, whether it should be market-led, technology-led or government-led, Liang Bingwen believes that market leadership is the basis for long-term healthy development of the LED lighting industry. Of course, the government must invest in policies, regulations, research and development, and applications. Demonstration and standards are used to guide and support. The development of technology should be guided by the needs of market applications. Chen Hesheng believes that at least in the field of public works such as street lamps, the domestic management and market operation system determines that the promotion of such products can only rely on government leadership. The products of civil use ultimately depend on the market, but the problem is that the advantages of long-life products of LED products are not easy to play out, so that their cost-effective advantages are not fully reflected, so the market space is relatively limited. . For this type of product, the real space will be more in industrial and commercial applications. Li Mantie stressed that the government should vigorously encourage LED research and development. "The gap between China's LED level and foreign countries, one in the brand, and two in research and development. Foreign giants have gained a lot of profits due to the high added value of the brand, and have the strength to invest heavily in research and development, while China's LED companies are still in the stage of entrepreneurial development. The profit situation is not very good, and the corresponding funds and manpower invested in R&D are not enough. If the government can increase R&D investment support for outstanding enterprises in the domestic LED industry, it will be of strategic significance to the development of China's LED industry. Li Mantie believes.
How to focus on human resources, financial resources and resources for research and development? Peng Wanhua, secretary general of the Fujian Optoelectronic Industry Association, believes that it is mainly to overcome the problems of the system and to overcome the scattered and repeated investment of various departments. First of all, to establish an authoritative department to implement, to integrate existing LED R&D institutions and key enterprises, focus on advantages, division of labor, cooperation, and close cooperation, and make breakthroughs in the research and development of LED technology and industrial chain technology. Only by acquiring core technologies with independent property rights will there be a competitive advantage. Second, the state should concentrate its financial resources, manpower and resources on the research and development of semiconductor lighting technology, including epitaxy, chips, packaging, LED application products and supporting key raw materials and equipment. We must master the core technology with independent property rights, otherwise China will always be passive in this industry, and it can only be in the disadvantage of processing and manufacturing.
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