POLYIMIDE PRECURSOR, POLYIMIDE, FLEXIBLE SUBSTRATE PREPARED THEREWITH, COLOR FILTER AND PRODUCTION METHOD THEREOF, AND FLEXIBLE DISPLAY DEVICE

    公开(公告)号:PH12014502700B1

    公开(公告)日:2015-02-02

    申请号:PH12014502700

    申请日:2014-12-03

    Abstract: The present invention is directed to a polyimide precursor having a unit structure expressed by a general formula (1) and a unit structure expressed by a general formula (2). [Chem. 1] (In the general formulas (1) and (2) , X1 to X4 each independently represent a hydrogen atom, a monovalent organic group with 1 to 10 carbon atoms or a monovalent alkylsilyl group with 1 to 10 carbon atoms. R1 is represented by a general formula (3) and R2 is represented by a general formula (4).) [Chem. 2] (In the general formula (4), R3 and R4 each independently represent a monovalent organic group with 1 to 10 carbon atoms.) According to the present invention, there is provided a polymide precursor which does not cause white turbidity, cracking and foaming of a film irrespective of the curing condition of the polyimide resin film. There is also provided a flexible TFT array, a flecible color filter and a flexible substrate with a gas barrier layer and a flexible display panel prepared therewith.

Patent Agency Ranking