Patent ID: 11957039
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 1:
2. The method according to claim 1, wherein each of the openings is a blind hole, a distance between a bottom surface of the opening and a surface of the flexible substrate in contact with the support substrate is greater than zero, and each of the first to-be-etched portions is located on the bottom surface of the respective opening;
the flexible substrate comprises second to-be-etched portions, each of which is located between the bottom surface of the respective opening and the support substrate, and orthographic projections of the first to-be-etched portions on the support substrate coincide with orthographic projections of the second to-be-etched portions on the support substrate; and
after etching the first to-be-etched portions to remove the first to-be-etched portions, the method further comprises:
etching the second to-be-etched portions to remove the second to-be-etched portions.