Patent ID: 11871647
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A display device comprising a display substrate obtained by bending a flexible substrate along a to-be-bent region of the flexible substrate, wherein the flexible substrate is divided into a display region, a binding region on a side of the display region, the to-be-bent region between the display region and the binding region, two transition regions between the to-be-bent region and the display region and between the to-be-bent region and the binding region respectively;
the transition regions comprise a plurality of transition sub-regions arranged in a first direction, the first direction is a direction from the display region to the binding region;
the flexible substrate comprises a flexible base and a back film disposed on the flexible base, a portion of the back film is located in the transition regions;
in any one of the transition regions, the amount of distribution per unit area of the back film in each of the transition sub-regions gradually decreases in a direction gradually approaching the to-be-bent region,
wherein a portion of the back film located outside the transition regions is disposed in the display region and the binding region, a thickness of the back film in both the display region and the binding region is greater than or equal to the thickness of the back film in the transition regions,
wherein both the two transition regions and the to-be-bent region have a bent structure after bending the flexible substrate.