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  • BOE, Tianma, TCL Report Strong Profits In 2021_03/27/22
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R-T-R Production for OLED Lighting in Korea
April 10, 2017
​ 
OLEDNet reports the Korea Institute of Machinery and Materials (KIMM), the Ministry of Science, ICT and Future Planning-affiliated developed a 300mm wide Roll-to-Roll (R-T-R) manufacturing technology to produce flexible OLED* with GJM Co., Ltd. KIMM uses Roll-to-Roll vacuum evaporation equipment to produce flexible OLED products inside a single chamber to deposit the light emitting layer and the metal electrode. The approach replaces the current method of using polyimide on a carrier glass, which adds the additional process of attaching and detaching a film as well as the need for additional evaporation equipment. By using this R-T-R approach, it is possible to produce OLEDs with ‘multi-layer evaporation’ process that deposits organic and inorganic layers sequentially on top of a roll type film, which is formed inside a vacuum chamber. The researchers claim the time and facilities required for production are greatly reduced. This method is expected to be used in the lighting industry first and can produce any desired shape. Shin Kwon, senior researcher of KIMM explained “R-T-R vacuum evaporation equipment can be used for continuous production of flexible OLED, which could be the next generation of OLED displays. We are also developing fine pattern mask alignment technology to produce individual sub-pixels Red/Green/Blue used in displays. When it’s completed, it can be used for high-resolution displays.” 
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