Patent ID: 11865823
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A flexible display substrate, comprising:
a back plate comprising a display area, which comprises a bending area and a non-bending area; and
a back film layer disposed on the back plate and comprising a first sub-back film layer and a second sub-back film layer, wherein the first sub-back film layer is disposed on the non-bending area, and the second sub-back film layer is disposed on the bending area and covers a portion of the bending area,
wherein the second sub-back film layer extends along a first direction in the bending area, the second sub-back film layer only comprises two spaced back film members, which are arranged at two ends of the bending area in a second direction perpendicular to the first direction, respectively, no other back film member is provided between the two spaced back film members, and each of the two spaced back film members is connected to the first sub-back film layer and has a hardness higher than a hardness of the first sub-back film layer.