On the evening of February 6, BOE announced that the company and Hefei New Station High-tech Industrial Development Zone Management Committee, Hefei Industrial Investment Holding (Group) Co., Ltd. and Hefei Venture Capital Guiding Fund Co., Ltd. signed the "Hefei Printing OLED" Project Investment Agreement. The project content is centered on the construction of OLED technology platform. The total investment of the platform is about 1 billion yuan. The project funds are mainly used for new printing, evaporation and other equipment costs and opening and operating expenses.
Not only BOE, TCL, Samsung, LG and other companies have also been involved in the field of OLED printing. According to industry insiders, due to the limitations of production equipment, it is difficult to achieve mass production of OLED screens within 3 to 5 years.
The so-called printing OLED technology, in simple terms, refers to the production of OLED screens like printed newspapers, mainly for large-size screens. In terms of subdivision, OLED printing technology is mainly divided into inkjet printing and screen printing.
According to the current technical routes of Chinese, Japanese and Korean companies, the focus is on developing inkjet printing. Compared with the current evaporation technology, the new printing technology can greatly reduce the cost, extend the life of OLED materials, and improve the yield of large-size screens, thus achieving mass production of large-size screens.
In addition to BOE's construction of OLED technology platform in Hefei, TCL, Samsung, LG, etc. are also actively deploying OLED printing technology. On January 22nd, the Guangdong Printing and Flexibility Display Innovation Center was established. Guangdong Juhua Printing and Display Technology Co., Ltd. (hereinafter referred to as “Juhua Companyâ€), a joint venture between Huaxing Optoelectronics and Tianma Microelectronics, was involved.
In order to consolidate the upstream end of the industrial chain, TCL signed a strategic cooperation agreement with DuPont, Sumitomo Chemical, Nissan Chemical and US Cordie after establishing Polyhua. These partners will support Juhua in the development of printed OLED technology. The materials and process requirements, tailor-made research and development equipment for Juhua.
At the same time, Korean Samsung and LG have also actively introduced inkjet printing processes in the past two years. Their plan is to start demonstration production lines in 2017 to increase the production capacity of OLED displays. If the production line starts smoothly, it will accelerate the popularity of OLED products.
Key equipment cannot be mass produced into bottlenecksOLED printing technology is of great significance for large screens such as TV, but the industry is still not mature and facing many difficulties. In the view of Li Dongsheng, chairman of TCL Corporation, although the establishment of the Guangdong Printing and Flexible Display Innovation Center has accelerated the progress of OLED printing technology, it will take at least three to five years to make breakthroughs in printing technology.
According to industry insiders, the production of large-size OLED screens with new technologies requires more than 8.5 generations of inkjet printing equipment, soluble OLED materials and inks, inkjet printing technology, thin film packaging technology, oxide TFT backplane technology, and drive compensation technology. Achieve breakthroughs in the entire industry chain. “At present, the main problem is that the most critical equipment in the printing process is still not mass-produced,†the industry source said.
In an interview with reporters, industry observer Liu Buchen said that domestic enterprises must realize the OLED printing technology until 2020, when the competitive advantage of laser TV and other products on large-size screens will cease.
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