Title:
POLYIMIDE PRECURSOR, POLYIMIDE FILM FORMED THEREFROM, AND POLYIMIDE FILM PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/042497
Kind Code:
A1
Abstract:
Provided are a polyimide precursor, a polyimide film formed therefrom, and a method for preparing said polyimide. The polyimide precursor comprises a product formed from diamine and dianhydride; the diamine comprises a diamine containing a oxadiazole structure. The polyimide film formed from the polyimide precursor has high transmittance.
Inventors:
WANG YAMIN (CN)
Application Number:
PCT/CN2019/115884
Publication Date:
March 11, 2021
Filing Date:
November 06, 2019
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C08G73/10; C08J5/18; C08L79/08; H01L51/54
Domestic Patent References:
| WO2018029766A1 | 2018-02-15 |
Foreign References:
| CN107405907A | 2017-11-28 | |||
| CN104827731A | 2015-08-12 | |||
| CN106928481A | 2017-07-07 | |||
| CN109851785A | 2019-06-07 | |||
| US3621076A | 1971-11-16 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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