LED research institute LED inside pointed out that the current cost of LED lighting per 1000 lumens is about 7-10 US dollars. As the cost continues to decline, the demand for LED lighting will accelerate from 2011 to 2012, estimated to 2015. The cost per thousand lumens of lighting is expected to drop to 2-3 dollars, when the global light source will be changed into energy-saving light source, and will save more than 30% of energy consumption.
In recent years, the application of LED in all aspects has shown rapid growth, and two applications such as LED lighting and LED backlight have attracted the most attention. Although LED manufacturers are currently focusing on backlights, the LED industry chain related manufacturers are currently investing in the development and promotion of LED lighting products because the lighting market is much larger than the backlight market.
Philips Philips Lumileds said that LED lighting currently can get about 100-150 lumens per dollar, and it needs a lot of effort to reach the goal of 1000 lumens per dollar for DOE requirements. Take Philips Lumileds' LUXEON Rebel 3000K color temperature LED lighting product as an example. At 350mA current drive, Tj is 85 degrees C. After improvement, the company's research data can reach a maximum efficiency of 220 lumens/W.
From the perspective of LED epitaxy and grain, Zhou Mingjun, general manager of Epistar, pointed out that the price of chip package should be reduced to 500 lumens/$1 to meet the DOE goal of the US Department of Energy. At present, Jingdian has developed a 160lm/w high-voltage driving LED chip HV LED, which will be a solution to the development of LED general lighting applications. Not only the luminous efficiency is improved, but also the current is reduced by the high voltage driving, so the heat dissipation problem is also better solved, and the alternating current driving can be used without a converter. In addition, the new hybrid white LED of Jingdian has achieved high luminous efficiency and high color rendering technology in the laboratory data of 168lm/w.
As for how to reduce the cost of LED production, Dr. Koukou Suu, director of the Ukrain Ubike Semiconductor Electronic Technology Research Institute, believes that the demand for LED lighting in the Japanese market is expanding rapidly, attracting many LED lighting companies to invest, but the most urgent need for manufacturers is to reduce costs, and Improve product brightness and luminous efficiency. In terms of process, the improvement can include PSS process, ITO deposition equipment, plasma etching, and the like.
Li Jia, Director of Veeco MOCVD Marketing, also emphasized that MOCVD's production and productivity are one of the most critical aspects of the LED industry's development, and advances in MOCVD technology have effectively reduced LED manufacturing costs. This includes reducing the yield loss in terms of wavelength, brightness, forward voltage, etc., as well as cost sensitivity analysis through LED wafers, emphasizing product uniformity and repeatability, ensuring LED epitaxial yield and so on.
In other application markets, Dr. Alfred Felder, president and chief executive of Osram, the lighting manufacturer, mentioned that the automotive LED market, thanks to the emergence of new-state LED light sources, allows OEMs and LED light source manufacturers to collaborate to produce more creative ideas. And a variety of lights. At the same time, it is estimated that the pico projector P ic o Projector, which uses LED light source, will grow to more than 7 million units by 2013.
LED street lights and traffic lights are also important applications for LEDs. Huang Wei, chairman and general manager of Lianjia Optoelectronics, said that in the case of the Chinese market, 250,000 LED street lights have been installed in 2009. In 2010, Guangdong Province implemented a large-scale LED industry demonstration and promotion project. It is expected that the installation of LED street lamps will reach 45. Wan Hao. At present, more than 200 cities in the United States have installed LED street lights, and more than 100 cities have announced that they will purchase LED street lamps in large quantities.
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