In order to reduce the production cost of large-size organic light-emitting diodes (OLEDs), Japan and the mainland have recently accelerated the pace of research and development and have introduced samples faster than the Korean panel makers, which is also more cost-competitive for mass production than 10.5-generation liquid crystal displays (LCDs). The strategy of the large-size OLEDs.
According to Korean media ET News, Japanese JOLED and Continental TCL disclosed the findings of inkjet printing technology in the 2018 OLED Korea Forum held in Seoul, South Korea. They deliberately attacked the next-generation process technology to enter the large-size OLED market, although the technology has not yet reached The process can be officially mass-produced, but the performance of ink-jet printing equipment and materials has been increased to a certain extent, and production production technology can be guaranteed within 1 to 2 years.
JOLED revealed recently that it is developing an ink jet printing process display with a resolution of 300ppi or more on the 8th generation substrate, and developed a 21.6吋4K OLED monitor sample for medical use on the 4.5th generation substrate in 2017 using the ink jet printing process. ASUS supplies samples. JOLED expects to present 300ppi resolution in 8th generation substrates, and to produce OLED panels for ink jet printing processes and high-definition tablet PCs. The previously released 21.6吋4K OLED monitor panel can achieve 204ppi resolution.
JOLED originally decided to mass-produce a 21.6-inch monitor and prepare to invest in equipment. However, due to funding issues, it is looking for foreign funds to pay attention to it. The mass production situation remains unclear. The 200ppi resolution is suitable for 20-inch monitors or larger TV panels. If the JOLED achieves a resolution of 300ppi or more, it can achieve high image quality at the 10-inch panel. JOLED currently has a low probability of investing in mass-produced equipment, but it has its own technology, and if it starts mass production, it will have an impact.
The inkjet printing and R&D open platform of the mainland TCL, Guangdong Juhua Printing and Display Technology, has recently developed a 31吋4K OLED panel using inkjet printing technology. The panel subsidiary Huaxing Optoelectronics also participated in the research and development and produced half the size of the 4.5-generation substrate. Production line trial production. TCL aims to ensure 11th generation substrate inkjet printing mass production technology by 2019. In April, the International Display Technology Symposium (ICDT) in Guangzhou, China will be publicly announced. Juhuaze will cooperate with Huaxing Optoelectronics, Tianma, Zhongdian Panda and university institutions. And other joint research and development technology.
The leading panel maker of the mainland, BOE, has also made large-scale investments in this area, and it is rumored that BOE considers adopting WOLED (White OLED) technology or ink jet printing technology from LeGear Display to produce large-size OLEDs to reach the market.
Korean panel makers are also developing ink jet printing technology. Both LG Display and Samsung Display have built experimental production line samples internally, but have never disclosed relevant information or public samples. The Lejin display uses an 8-generation inkjet printing equipment from Tokyo Electric Power to build an experimental production line. Samsung Display uses the equipment of Kateeva and Semes from the United States to develop inkjet printing technology.
South Korean industry professionals are worried that South Korea will surpass competing countries in the inkjet printing market. In order to enter the large-size OLED market, the mainland is likely to cross WOLED technology and directly adopt inkjet printing technology. Samsung previously stated that it would not develop a large-size OLED business. At present, Samsung has restarted the development of large-size display technologies. Lejin's displays are also considering the introduction of ink-jet printing technology in the 10.5-generation production process. However, mainland China is likely to take the lead in this market.