Long term development of LED lighting under disorderly competition

As a new generation of light source, LED has a very good performance, such as brightness, color saturation and high light efficiency, high efficiency LED lamp, small size, light weight, firmness and long service life, low driving voltage, easy to drive, but also need to be suitable for a variety of occasions, such as indoor lighting, road lighting, architectural lighting display application, traffic signal lighting, industrial lighting. China's LED industry after the initial stage of development, the initial stage of the industry, the growth of the industry, is currently in a critical period of development, but also faces many problems and challenges.

Disorderly competition affects the development of industry

Dealing with patent war". Since the beginning of 2010, there will be a number of important areas of white LED patent expired, in other words, the LED industry in recent years will fall into frequent patent litigation and battle. According to incomplete statistics, the current global application of LED patents up to 124 thousand, of which the United States accounted for 20 thousand, China accounted for 25 thousand, Japan accounted for 49 thousand. The key is that China's 25 thousand LED patents, mostly concentrated in the middle and lower reaches of the whole industry chain, mostly belonging to the design, utility model patents, patents are rare. Although the upper reaches of the industry chain, although there are a number of peripheral patents, but the core patent mastery is small.

Balance productivity growth and market demand. According to incomplete statistics, only 2010 listed companies to invest in the field of LED is more than 30 billion yuan, of which three optical 20 billion yuan, 4 billion yuan elec-tech. 2010 investment in the LED industry, there are about 37% to invest in the upstream chip area, 52% to invest in downstream applications, signs of excess capacity initially. 2011 1 ~ July, China's MOCVD equipment increased by more than 200 units, is expected in 2012, China's LED chip production capacity will be in the year of 10 times in 2010. At present, China's MOCVD equipment more than 500 units, counted in the construction of the 96 projects, the total number of more than 1600 units. According to statistics, the current domestic sapphire substrate manufacturers 41, with a total investment plan of 44 billion 700 million yuan, of which the project is planned to build up to $12 billion 80 million in the construction of the project capacity of up to 101 million / year. However, due to the global economic situation is not optimistic, LED chip demand is declining. How to expand the LED general lighting market, how to support the government, how to cultivate the market, we need to solve.

Avoid disorderly competition. Before LED hot has caused some blind investment is the most direct result of the vicious competition, blind investment lead to vicious competition, vicious competition, ignoring the quality of products, inferior products tarnished reputation. As a result, disorderly competition led to the closure of some enterprises, small and medium enterprises in the blind investment in such a cold winter may not support. For the industry in which the industry is concerned, the negative impact, how to change it may take time and cost to slowly digest some of these effects. For the LED industry has been difficult, it is not to give us some negative factors?

Development should have a long-term vision

Deal with the shortage of raw materials. High brightness LED chip is based on indium. Its content in the earth's crust in the sixty-first place, the strategic metal ranked in the second place, the development and application of growing, global reserves are not abundant, the price continues to grow, is expected in the future there will be a cyclical shortage. If LED enter the general lighting market, problems of raw materials is abundant? At present, many foreign institutions and enterprises have begun to explore new chip materials, China should pay more attention to this problem, to deal with possible future rising prices of raw materials, the development of new materials LED.

Focus on the development of new technologies. Such as LED internal quantum efficiency, as well as the package structure change, as well as new phosphors / quantum dots, transparent substrate, contact material, reflective material, two optical reflector lamps / design, high performance driver development.

Challenges from the OLED can not be ignored. LED and OLED each one has his good points when LED is pushed to the market, and also face the "fellow" OLED competition. OLED display technology has been relatively mature, and has entered the market, lighting technology is being paid attention to, has been in rapid development. At present, the commercial white OLED light efficiency has reached 50lm/W, 2 times more than ordinary lighting, life has reached 100 thousand hours. The laboratory research and development of white light-emitting efficiency of 120lm/W, close to the U.S. Department of energy requirements for lighting materials 150lm/W. Of course, the OLED plane light source is also facing some problems: OLED luminescent material electricity antioxidant capacity range, afraid of the water, vacuum glass sealing, which requires a LTPSTFT substrate, so that the cost of OLED application in the field of large size will be high; the current yield of large size OLED panel rate is still not high, in order to improve the the OLED product line cost, but also makes the production cannot be increased rapidly; the luminescent material properties, component life restricted short board effect; surface light source specification and its driving power standard has yet to be established.