Patent ID: 11956986
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 0:
1. A flexible display screen comprising: a flexible substrate; an OLED device layer disposed on the flexible substrate; an encapsulation layer, disposed on the OLED device layer and encapsulating the OLED device layer; and an encapsulation protection layer formed on the encapsulation layer, wherein the encapsulation protection layer is made of polyimide (PI), the encapsulation protection layer has a thickness of 10-25 um, and the encapsulation protection layer has an elastic modulus of 4000 MPa-14000 MPa, a ratio of a thickness of the encapsulation protection layer to a thickness of the flexible substrate is 1:2 to 1.25:1, the flexible substrate has a thickness of 20 um and an elastic modulus of 7000 MPa.