A May edition of Advanced Functional Materials, in which Dr. Hong Sung-woo’s research results were published on the cover. (Korea Institute of Production Technology)
“We paid attention to fluorine-based polyimide, as it is a key material for the development of next-generation displays. Based on the results, we want to focus on developing materials that can be applied to all products using flexible screens,” said Hong Sung-woo, who led the team that developed the film.
Flexible optical films, produced using polyimide engineering plastics, prevent foldable displays from breaking, cracking and wrinkling.
Existing films have the fatal drawback of yellowing of the screens, caused by the transfer of electrons which easily absorb light in a low wavelength range. But the new polyimide film developed by Hong’s team is more elastic and has no problem with screens yellowing, the researchers said.
The film did not break, crack or wrinkle even after bending the screen more than 200,000 times, he added.
The research results appeared on the cover of a May issue of Advanced Functional Materials, a weekly academic materials journal.
By Lee Yoon-Seo (y[email protected])