Not long ago, Germany's Novaled AG published a speculation on the OLED market, said that lighting OLED luminous efficiency has now reached 50 lumens / W, is already more than twice the traditional incandescent lamp, also said that within two years is likely to achieve 100 lumens / W The goal, which will exceed the current LED 70 ~ 80 lumens / W standard.
At the same time, due to the high yields of low cost factors such as OLED surface light emission and ultra-thin, it is more suitable than LED as a light source selection for display devices. This has led many LCD panel makers to start adding research and development to OLED technology. If LED does not solve the technical difficulties in two to three years, it will be difficult to overcome the OLED products that come afterwards. At that time, LED may not have any chance of winning.
It is understood that the company has developed OLED technology and organic electronics applications in four areas: monitors, lighting, solar cells, TFT. Among them, the company is most looking forward to the field of lighting, Novaled believes that this is a lighting revolution, is "step by step to move forward." At the same time, he also pointed out that the world's famous light bulb manufacturers are developing general lighting as the goal, but the company believes that "it should first use the characteristics of OLED surface lighting to introduce novel lighting products, and then spread to general lighting applications." . In particular, there is an expectation that the window glass will emit "transparent lighting" and that the wall-to-ceiling light is tiled with a 10 cm square or so tile-like OLED panel. "The focus of OLED lighting is on the energy efficiency of high luminous efficiency." In addition, Japanese, American, and European auto makers have also increased their focus on OLED lighting applications and are studying applications ranging from interiors, dashboards, and various lighting fixtures.
A few days ago, Osram Opto Semiconductors announced that after just two years of research and development, it has refreshed the laboratory records of hot white organic light-emitting diodes. Organic light-emitting diode lighting (ie, OLED lighting) achieves a luminous efficacy of 46 lumens/watt, a brightness of up to 1,000 candelas/square meter, and a lifetime of more than 5,000 hours. For the first time, two key characteristics of OLEDs are realized. Synchronous promotion. In the past, light efficiency and life expectancy have been shifting one after the other: light efficiency has improved, and life expectancy has shortened; vice versa.
Dr. Karsten Heuser, head of OLED lighting technology at OSRAM Opto Semiconductors, was very satisfied with the results achieved in the mid-development period. He said: "The new product has a luminous efficacy of 46 lumens per watt (0.46/0.42 CIE on the integrating sphere). With a service life of more than 5,000 hours, our development team has created a real milestone in the history of thermal white OLEDs.With the improvement of light efficiency and lifespan, OLED planar light sources are gradually approaching the level of traditional lighting solutions. Get a wide range of applications.
About 100 square meters of product prototype, color rendering index (CRI) of 80. It is expected that by March 2009, the development project will see a major breakthrough. The energy-saving LED's>OLED planar light module (demo version) consisting of multiple light emitting panels will achieve a total luminous flux of up to 500 lumens without consuming more power 10 watts.
It is reported that the domestic large-scale production line of Organic Light Emitting Display (OLED), which was established by Tsinghua University, will be officially put into operation in Kunshan City, Jiangsu Province in the second half of 2008. This is the first time in China's display industry industry to rely on independent technology for large-scale production, marking China's new flat panel display technology to achieve a transformation from technology to industry.
Visconnâ€™s OLED technology comes from Tsinghua University. The entire production line is completely designed by itself. The current production base construction has been basically completed, and the production line equipment has been purchased and will be gradually moved in. The total construction area of â€‹â€‹the factory area is 30,000 square meters, with an advanced clean workshop of tens of thousands of square meters, and an annual output of more than 10 million small-sized OLED display devices. OLED displays can be widely used in communications, instrumentation, industrial control, consumer electronics, automotive electronics, aerospace, medical instrumentation and other industries.
Intense competition in the market The bright prospects indicate that the global LED application market will increase from US$ 12.5 billion in 2004 to US$ 50 billion in 2008. At present, the world is starting a battle to seize the commanding heights of the LED market. The first chairman of the LED Industry Alliance of Guangdong Province, Li Xuliang, chairman of Qinsight Optoelectronics believes that under such fierce competition, China's LED industry urgently needs to improve its independent innovation capabilities, fully integrate and utilize existing resources, and strengthen industrial support and joint research. And through learning and warning, we will soon reach the international advanced level.
In recent years, China's LED industry has a certain technology and industry base, initially forming a relatively complete industrial chain, the entire industry step by step rapid growth of the development stage, LED lighting market size and vision is very broad, annual growth rate of 50% . However, compared with foreign companies, the international competitiveness of China's semiconductor lighting industry is still far from sufficient, and the inadequacies are obvious: First, the overall distribution is more decentralized, and the cluster effect is not obvious; second, the industry is small in scale and lacks leading enterprises; The level of technology is not high and there is a big gap with foreign countries.
At present, developed countries such as Europe, America and Japan attach great importance to the development and production of LED. General Electric, Philips, Osram and other industry giants have also cooperated with semiconductor companies to establish semiconductor lighting companies and accelerate the capture of the global LED market. At the same time, foreign companies have also increased their investment in China in the trend of increasing domestic LED production capacity. The type of investment and construction has also shifted from the early packaging plants to the more technologically advanced chips. However, at this stage, in the production of epitaxial wafers, European, American, Japanese, and Chinese Taiwanese manufacturers have not substantially invested in mainland China. Except that Guangzhou Puguang is a Hong Kong-funded enterprise, the rest are basically local companies. According to CCID Consulting's speculation, in the next few years, more foreign-funded enterprises will enter China to set up factories, and domestic enterprises will further increase their production capacity. By then, China will become the region following Japan, South Korea, and China Taiwan. Another LED industry base.
International companies LED'> OLED speed, LED crisis.