One of the supporting activities of the 6th China International Semiconductor Lighting Forum? 2009 OLED LIGHTING learned that OSRAM Opto Semiconductors successfully developed a prototype of OLED large transparent light source in a research project with a thickness of only a few hundred microns. Thanks to the new technology, this organic light-emitting diode does not need to be packaged separately, and it can be surprisingly thin in any design. The transparent test sample has a luminous area of ​​210 cm2, which has already demonstrated the enormous potential of OLED light sources, indicating that many extraordinary lighting dreams will one day become a reality.
With the advancement of technology, AMOLED is expected to further develop in the direction of large and medium size. The notebook computer will be the next application direction of AMOLED manufacturers. It is estimated that from mid-2010, manufacturers will have the opportunity to apply AMOLED on notebook computers, while Netbooks using AMOLED panels will have the opportunity to start mass production at the end of 2010.
In terms of TV, it is expected that there will be more than 20-inch AMOLEDTV production by the end of 2010; meanwhile, in 2011, more than 30-inch AMOLEDTV will enter the market.
The bottleneck of OLED is that its luminescent material has very poor anti-oxidation ability after being energized, and vacuum glass sealing is needed to prevent oxidation. This has relegated the old way of TFT-LCD. Since the OLED is a current type device and requires a relatively high current drive, an LTPS TFT substrate is required.
OLEDs are also very limited in terms of equipment. At present, OLED production equipment is only TOKKI and ULVAC. TOKKI is the main force, and its glass substrate size is only 370mm*470mm. Its luminescent materials are mainly DuPont, BASF and Idemitsu. These chemical giants do not have much interest in this market with only 1% TFT-LCD.
Compared with TFT-LCD, OLED and LCD-LCD 75% of the cost comes from raw materials. Regardless of the size of the production line, the proportion of TFT-LCD raw materials will not decrease, while the cost of raw materials in OLEDs is less than 25%. With the development of TFT-LCD, it is no longer possible to further reduce costs. Once the OLED yield is increased to 70%, TFT-LCD has no place.
As OLED lamps are expected to become the new mainstream of future lighting, the huge business opportunities behind them have attracted about 60 manufacturers from around the world to invest in OLED research. Nearly half of them are committed to the improvement of materials, and international lighting manufacturers have begun to patent. The layout has set off a wave of innovative applications for OLED lighting. At present, OLEDs with luminous efficiencies of 100 lm/W have been researched, and industrialized OLEDs have reached 50-60 lm/W, but the three major problems of brightness, service life and luminous efficiency are still affecting OLED lamps with various advantages. Mass production issues.
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