Patent ID: 11926704
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. The method for manufacturing the polyimide substrate as claimed in claim 1, wherein the step of cyclodehydrating the polyamic acid containing oxazole and fluorine to produce the polyimide containing oxazole and fluorine and forming the polyimide substrate by film formation of the polyimide containing oxazole and fluorine comprises steps of:
adding N-Methyl-2-pyrrolidone to a solution of the polyamic acid containing oxazole and fluorine, and filtering the solution of the polyamic acid containing oxazole and fluorine with an organic filter;
spin-coating the filtered solution of the polyamic acid containing oxazole and fluorine onto a glass substrate, and cyclodehydrating the polyamic acid containing oxazole and fluorine by crosslinking curing to produce the polyimide substrate.