OLED micro-display sheet with photoresist materials. Credit: Electronics and Telecommunications Research Institute(ETRI)
A Korean probe squad has developed a worldly exertion successful which a precocious solution is imaginable without requiring a precocious somesthesia for the process. And, it succeeded successful commercializing an existent merchandise by applying the exertion to the OLED display.
The Electronics and Telecommunications Research Institute (ETRI) announced that it had developed a worldly exertion successful which the pixel size tin beryllium made not much than 3μm adjacent astatine the manufacturing temperature of 100℃ oregon less, and succeeded successful applying it to the OLED micro-display for the archetypal clip successful Korea.
A show is produced by forming good pixels connected a bladed movie with a worldly called photoresist that changes its chemic properties erstwhile exposed to light. Until now, photoresist materials person been processed astatine a precocious temperature. But, for the OLED, which emerged arsenic a next-generation display, determination tin beryllium a occupation with the light-emitting diodes, which emit airy astatine precocious temperatures. Developing a worldly exertion that tin beryllium processed adjacent astatine debased temperatures was the key.
ETRI applied the developed photoresist materials to the OLED for the archetypal clip successful Korea. The prototype made by the probe squad is 0.7 inch micro-display which is suitable for wearable devices. The size of each pixel is not much than 3μm, and 2,300 pixels per inch are densely populated, truthful that ultra-high-resolution panels tin beryllium produced.
The probe squad has been doing probe related to OLED micro-display for implementing AR since 2016, and it could play the relation of a level for making this prototype. In addition, ETRI evaluated the show of the developed worldly and supported information successful world-class world conferences and exhibitions.
When the verification was completed, it has succeeded successful exclusively supplying developed materials to Korean companies. Especially, arsenic the worldly is applied to the mobile OLED show sheet for the smartphone released this twelvemonth by the company, it became the archetypal lawsuit of commercialization successful the world. Thanks to this, it is expected to person the economical ripple effect of much than KRW 60 cardinal successful 2021 alone, and it could beryllium evaluated arsenic having achieved applicable worldly localization and self-reliance.
Dr. Nam Sung Cho said, "We succeeded successful localizing root materials done a nationalist task unneurotic with the government, companies, and nationalist probe institutes. We anticipation that this accomplishment volition beryllium adjuvant for Korea to support its presumption arsenic a person successful the show manufacture arsenic good arsenic the independency of materials, parts, and equipment."
ETRI is readying to proceed with follow-up researches to make a sheet with higher resolutions truthful that 3000 pixels tin acceptable successful 1 inch, and it volition proceed the treatment connected transferring the developed micro-display technology to related companies.
Provided by National Research Council of Science & Technology
Citation: ETRI commercialized a debased somesthesia photoresist for OLED micro-display (2021, December 15) retrieved 15 December 2021 from https://techxplore.com/news/2021-12-etri-commercialized-temperature-photoresist-oled.html
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