Sk Innovation Co., Ltd.

Sk Ie Technology Co., Ltd.

Yoo Seock Hwang

Jin Hyung Park

Hyuk Joo Kim

Min Sang Park

Jin Su Park

Hye Ri Kim

Chol Ho Lee

Seung Min Jeon

Yong Gyun Cho

Ki Yup Kim

Sung Ho Son

Hyuk Jun Kim

The present invention relates to a polyimide-based film, a window cover film including the polyimide-based film, and a display panel including the polyimide-based film. More specifically, the present invention relates to a polyimide-based film of which a modulus measured according to ASTM D882 is 5 GPa or more and a rate of change of the modulus, after the polyimide-based film is maintained under a high-temperature and high-humidity condition of 60° C. and 90% RH for 500 hours, is 10% or less.

Polyimide film and flexible display panel including the same

Provided are a transparent film, an optical material including the same, and a display device including the same.

Transparent film, optical material comprising the same, and display device comprising the same

Disclosed is a casting belt used for manufacturing an optical film by means of a solvent casting process, in more detail, a casting belt for producing a transcendental wide width film which is used to produce a film in a gel state by casting a dope when manufacturing a film that is used for a polarizer of liquid crystal displays or optical compensation films.

Casting belt for producing transcendental wide width film

Growing community of inventors

Daejeon, South Korea

Yoo Seock Hwang