公开(公告)号：US20250159828A1

公开(公告)日：2025-05-15

申请号：US18836482

申请日：2023-06-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weiliang Yuan ,  Paoming Tsai ,  Xiongnan Zhang ,  Shuang Du

IPC: H05K5/03 ,  C08G73/10 ,  C08J5/18

Abstract: The present disclosure discloses a method for preparing a display screen cover plate, a display screen cover plate and a display device. The method for preparing a display screen cover plate including: condensing a dianhydride monomer with a first diamine monomer and a second diamine monomer to obtain a polyamide acid; reacting the polyimide acid with a dehydrating agent and a catalyst to obtain a polyimide polymer; dissolving the polyimide polymer in a solvent to obtain a polymer solution; coating the polymer solution onto the substrate to form a film, and peeling off to obtain the display screen cover plate; and the dianhydride monomer having a benzene ring structure and a fluorinated group connected to the benzene ring structure, the first diamine monomer having a pyridine structure, and the second diamine monomer having a benzene ring structure.