Patent ID: 11937442
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G  Y | IPC H

Claim 16:
17. The method according to claim 15, wherein before processing the second flexible base substrate layer, the method further comprises: forming a second buffer layer on a side of the second flexible base substrate layer away from the first buffer layer, forming a second via hole having a position corresponding to that of the first via hole on the second buffer layer, wherein
processing the second flexible base substrate layer to make the first via hole penetrate through the second flexible base substrate layer comprises: processing the second flexible base substrate layer to make the first via hole and the second via hole communicated with each other and penetrate through the second flexible layer, with an orthographic projection of a surface of the second buffer layer facing the second flexible base substrate layer on the rigid underlaying substrate being larger than an orthographic projection of a surface of the second flexible base substrate layer facing the second buffer layer on the rigid underlaying substrate; forming a third flexible base substrate layer on a side of the second buffer layer away from the second flexible base substrate layer; and processing the third flexible base substrate layer to make the first via hole and the second via hole communicated with each other and penetrate through the third flexible base substrate layer.