Granted Patent B2

US 12,411,522 · App. 17/785,113 · Granted Sep 9, 2025

Inventors: Yaming Wang (Beijing, CN); Liqiang Chen (Beijing, CN); Jiafan Shi (Beijing, CN); Pinfan Wang (Beijing, CN); Jia Zhao (Beijing, CN); Mengyuan Pang (Beijing, CN)

Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.

G06F1/1652G06F1/26

Abstract

Claims (49)

1. A flexible display screen, comprising:

a main display portion including a first side, an arc-shaped side and a second side that are connected in sequence;

a first bending portion located on a side of the main display portion where the first side is located and connected to the first side;

a second bending portion located on a side of the main display portion where the second side is located and connected to the second side; and

a corner bending portion located on a side of the main display portion where the arc-shaped side is located and connected to the arc-shaped side;

wherein the first bending portion, the corner bending portion and the second bending portion are connected in sequence, and constitute a display region together with the main display portion; and a plurality of openings are disposed in the corner bending portion, and face a bending direction of the corner bending portion; and

the plurality of openings have a same shape, the plurality of openings are arranged in a plurality of rows in a radial direction of the arc-shaped side, openings in each row are arranged at intervals along an extending direction of the arc-shaped side, and the openings in each row are arranged in a same arc level along the arc-shaped side.

2. The flexible display screen according to claim 1 , wherein the corner bending portion has a wiring region and a deformation region that are sequentially disposed along a direction from the corner bending portion toward the main display portion; wherein

the deformation region is connected to the arc-shaped side, and the plurality of openings are disposed in the deformation region; and

at least one first signal line is disposed in the wiring region.

3. The flexible display screen according to claim 2 , wherein along a direction from a center of the deformation region toward the first bending portion and along a direction from the center of the deformation region toward the second bending portion,

dimensions of openings in each of at least one row along the radial direction of the arc-shaped side are reduced in sequence; and/or

dimensions of openings in each of at least one row along the extending direction of the arc-shaped side are reduced in sequence.

4. The flexible display screen according to claim 2 , wherein along a direction from a center of the deformation region toward a side boundary of the deformation region along the radial direction of the arc-shaped side and along a direction from the center of the deformation region toward another side boundary of the deformation region along the radial direction of the arc-shaped side,

dimensions, along the radial direction of the arc-shaped side, of openings arranged along the radial direction of the arc-shaped side are reduced in sequence; and/or

dimensions, along the extending direction of the arc-shaped side, of openings arranged along the radial direction of the arc-shaped side are reduced in sequence.

5. The flexible display screen according to claim 2 , wherein the deformation region includes a middle region and an edge region, and the edge region surrounds the middle region; wherein

a dimension, along the radial direction of the arc-shaped side, of an opening in the plurality of openings located in the middle region is greater than a dimension, along the radial direction of the arc-shaped side, of an opening in the plurality of openings located in the edge region; and/or

a dimension, along the extending direction of the arc-shaped side, of an opening in the plurality of openings located in the middle region is greater than a dimension, along the extending direction of the arc-shaped side, of an opening in the plurality of openings located in the edge region.

6. The flexible display screen according to claim 5 , wherein dimensions, along the radial direction of the arc-shaped side, of openings in the plurality of openings located in the middle region are substantially same; and/or

dimensions, along the radial direction of the arc-shaped side, of openings in the plurality of openings located in the edge region are substantially same.

7. The flexible display screen according to claim 5 , wherein a dimension of the deformation region along the radial direction of the arc-shaped side is L1, and a minimum distance, along the radial direction of the arc-shaped side, between a boundary of the middle region and a boundary of the deformation region that are close to each other is in a range of ¼ L1 to ⅓ L1; and/or

a dimension of the deformation region along the extending direction of the arc-shaped side is L2, and a distance, along the extending direction of the arc-shaped side, between a boundary of the middle region and a boundary of the deformation region that are close to each other is in a range of ⅙ L2 to ⅛ L2.

8. The flexible display screen according to claim 2 , wherein along a direction from a center of the deformation region toward the first bending portion and along a direction from the center of the deformation region toward the second bending portion, distances, each of which is a distance between two adjacent openings in openings in each of at least one row, are increased in sequence; and/or

along a direction from a center of the deformation region toward a side boundary of the deformation region along the radial direction of the arc-shaped side and along a direction from the center of the deformation region toward another side boundary of the deformation region along the radial direction of the arc-shaped side, distances, each of which is a distance between two adjacent openings in openings arranged along the radial direction of the arc-shaped side, are increased in sequence.

9. The flexible display screen according to claim 1 , wherein the plurality of openings have a strip shape, and a length extending direction of the plurality of openings is substantially same as the extending direction of the arc-shaped side; and/or a length extending direction of the plurality of openings is substantially tangent to the extending direction of the arc-shaped side.

10. The flexible display screen according to claim 1 , wherein the plurality of openings are divided into a plurality of groups that are arranged in a plurality of rows along the radial direction of the arc-shaped side, and groups of openings in each row are arranged at intervals along the extending direction of the arc-shaped side or a tangential direction of the arc-shaped side; and

a distance between two adjacent openings in each group of openings is less than a distance between two openings that are closest to each other in two adjacent groups of openings.

11. The flexible display screen according to claim 1 , wherein the plurality of openings have a circular shape, an elliptical shape, or a polygonal shape.

12. The flexible display screen according to claim 1 , wherein the plurality of openings are through holes penetrating through the corner bending portion along a thickness direction of the corner bending portion; or

the plurality of openings are grooves recessed along a thickness direction of the corner bending portion.

13. The flexible display screen according to claim 1 , wherein the corner bending portion includes:

a plurality of sub-pixels, wherein two adjacent openings are provided with at least one sub-pixel therebetween; or

the plurality of openings are divided into a plurality of groups, and two adjacent groups of openings are provided with at least one sub-pixel therebetween.

14. The flexible display screen according to claim 13 , wherein the corner bending portion has a wiring region and a deformation region, the plurality of openings are disposed in the deformation region, and at least one first signal line is disposed in the wiring region; and

the corner bending portion further includes:

a plurality of second signal lines, wherein each sub-pixel is electrically connected to at least one second signal line; the plurality of second signal lines extend in gaps between the plurality of openings, and each second signal line is electrically connected to a first signal line in the at least one first signal line.

15. A method for assembling a flexible display screen, wherein the flexible display screen is the flexible display screen according to claim 1 ; the method comprises:

connecting a side of the first bending portion, a side of the second bending portion, and a side of the corner bending portion that are away from the main display portion to respective carrier films;

attaching the flexible display screen to a forming die, at least part of each of the carrier films protruding from a boundary of the forming die; and

pulling the carrier films to attach the flexible display screen to the forming die.

16. The method for assembling the flexible display screen according to claim 15 , wherein a carrier film connected to the corner bending portion of the flexible display screen is provided with a plurality of slits arranged at intervals, and the plurality of slits are arranged at intervals along an extending direction of the arc-shaped side of the main display portion of the flexible display screen; each slit extends along a radial direction of the arc-shaped side, and an end of each slit extends to a side of the carrier film connected to the corner bending portion.

17. An electronic apparatus comprising the flexible display screen according to claim 1 .

18. The flexible display screen according to claim 3 , wherein along a direction from the center of the deformation region toward a side boundary of the deformation region along the radial direction of the arc-shaped side and along a direction from the center of the deformation region toward another side boundary of the deformation region along the radial direction of the arc-shaped side,

dimensions, along the radial direction of the arc-shaped side, of openings arranged along the radial direction of the arc-shaped side are reduced in sequence; and/or

dimensions, along the extending direction of the arc-shaped side, of openings arranged along the radial direction of the arc-shaped side are reduced in sequence.

19. The flexible display screen according to claim 3 , wherein the deformation region includes a middle region and an edge region, and the edge region surrounds the middle region; wherein

a dimension, along the radial direction of the arc-shaped side, of an opening in the plurality of openings located in the middle region is greater than a dimension, along the radial direction of the arc-shaped side, of an opening in the plurality of openings located in the edge region; and/or

a dimension, along the extending direction of the arc-shaped side, of an opening in the plurality of openings located in the middle region is greater than a dimension, along the extending direction of the arc-shaped side, of an opening in the plurality of openings located in the edge region.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (53)

Cited By (1)

US 12,557,525