SONY hit a new high luminous efficiency OLED 25% law is broken

The day before, Idemitsu Corporation and Sony Corp announced the progress of new breakthroughs in the field of OLED material, the luminous efficiency of blue fluorescent OLED for the first time beyond the boundaries of the industry law 25%, successfully reached 28.5%, which is currently the world of this technology can achieve the highest luminous efficiency. SONY believes that the increase in luminous efficiency, SONY will launch a large screen OLED TV ready.

However, that the market research agency Displaysearch China chief representative Zhang Bing interview with this reporter, OLED to improve the luminous efficiency of the icing on the cake belongs to behavior, accelerate the industrialization and changes are not revolutionary. He pointed out that within 3-5 years, OLED is still not likely to pose a threat to the position of the lcd.

The 25% law is broken

Held in May 18th Los Angeles SID2008 (SocietyforInforma-tionDisplay), SONY and light company announced the luminous efficiency of deep blue fluorescence OLED for the first time in the industry to go beyond the boundaries of the 25% law, said the two sides will reach 28.5%., the field of application of blue color fluorescence OLED technology is newly developed in various other possible consideration.

The luminous efficiency of OLED display (power efficiency), and almost the same LCD backlight module is even lower, which means that the OLED luminous efficiency is still much room for improvement, generally improve the luminous efficiency of OLED, and significantly reduce the production cost of OLED, the future OLED will have the opportunity to replace LCD, and occupy a space for one person in the market.

It is reported that, in the RGB primary colors, the current reproduction of the most blue power consumption. SONY believes that the application of the technology greatly reduces the blue pixel drive current, will significantly reduce the energy consumption of the OLED panel, laying the foundation for the future commercialization of large size OLED tv.

Prior to this, SONY has successfully launched 11 inches OLED TV, and an additional $22 billion to strengthen the development of large-size OLED panel production technology. In promoting the big screen OLED TV, SONY has become one of the most active in many television companies.

However, Zhang Bing believes that OLED itself has the power saving features, further enhance the luminous efficiency means that OLED TV will be more energy-efficient and environmentally friendly. But for the OLED to break through the large size, improve the yield to achieve industrialization, is not a revolutionary technology.

Production is still far away

Reporters learned that, compared to the improvement of the LCD panel industry chain, many of the current resources (such as OLED organic light-emitting materials) and so on are accounted for oligopoly or monopoly, which greatly affected the process of industrialization. Some experts believe that the current OLED industry does not have a mature and stable and can determine the mass production methods.

Analysis shows that, to apply the OLED to the TV, it must be active full color AMOLED (ActiveMatrix active drive) technology. But for now, ActiveMatrix OLED technology is still not mature enough, must rely on the back of the TFTLCD (BackPlane) technology to drive the OLED. Zhang Bing pointed out that in this way, things become complicated, to smooth production should not only solve the OLED problem, but also solve the problem of TFTLCD, but this in turn will make LCD become stronger.

Zhang Bing thinks, because OLED will also face back driving technology, the light-emitting organic materials technology, OLED technology, OLED color sealing and so on technical issues, technology maturity and production feasibility of uncertainty is high, firms less willing to invest, but manufacturers put the less resource, development maturity and production feasibility of technology the more slowly. In the current state of view, the original TFT-LCD panel manufacturers are mostly lack of interest in the OLEDTV, so the evolution of OLEDTV production technology must rely on SONY, Samsung, Toshiba and other resources to promote more TV brand manufacturers. According to forecasts, the next 3-5 years, OLED is still difficult to shake the LCD technology.

SONY also believes that the future will not change the dominant position of the LCD panel for a long time. SHARP executives said that at present does not intend to launch any of the products on the OLED, while Toshiba LCD TV OLED plans to delay until 2010, Samsung is still focused on car audio, MP3 and other handheld devices.

Source: Southern Metropolis Daily