Flexible display module and foldable display apparatus

Patent metadata

Field	Value
Publication number	US-11864406-B2
Application number	US-202117359681-A
Country	US
Kind code	B2
Filing date	Jun 28, 2021
Priority date	Dec 1, 2020
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A flexible display module and a foldable display apparatus are provided. The flexible display module is assembled with a shell of the foldable display apparatus. The flexible display module includes a bending region, a display panel and a back plate provided on a side of the display panel away from a display side. The flexible display module further includes a support member disposed on a first surface of the back plate away from the display panel, wherein the support member is located in a middle region in a width direction of the bending region, and the support member is configured to be fixed with the shell. A first side surface of the support member is attached and fixed to the first surface of the back plate, a second side surface adjacent to the first side surface of the support member extends along a length direction of the bending region.

First claim

What is claimed is:

1. A flexible display module configured to be assembled with a shell of a foldable display apparatus, the flexible display module comprises a bending region which is configured to be in a bent shape when the flexible display module is in a folded state, the flexible display module further comprises a display panel and a back plate disposed on one side of the display panel away from a display side, and the back plate has a first surface away from the display side of the display panel; wherein the flexible display module further comprises a support member disposed on the first surface of the back plate, the support member is located in a middle region in a width direction of the bending region, and the support member is configured to be fixed with the shell of the foldable display apparatus; and the support member has a first side surface and a second side surface which are adjacent to each other, the first side surface is attached and fixed to the first surface of the back plate, the second side surface extends along a length direction of the bending region, and a flexible part is connected between the second side surface and the first surface of the back plate; and a flexible layer is provided on the second side surface of the support member, a side of the flexible layer facing the back plate is bonded to the first surface of the back plate, and the flexible layer is the flexible part; and a surface of the flexible layer facing away from the second side surface of the support member is provided with a V-shaped groove extending along the length direction of the bending region; and the shell comprises a first shell, a second shell and a connecting shaft, wherein the first shell and the second shell are both hinged on the connecting shaft; the support member further has a third side surface opposite to the first side surface, and the third side surface of the support member is fixed on the connecting shaft.

2. The flexible display module according to claim 1 , wherein intersection between the second side surface of the support member and the first surface of the back plate is filled and consolidated with a flexible fixing adhesive, and the flexible fixing adhesive is the flexible part.

3. The flexible display module according to claim 2 , wherein a surface of the flexible fixing adhesive is an arc-shaped surface recessed inward, or the surface of the flexible fixing adhesive is an inclined surface.

4. The flexible display module according to claim 1 , wherein a part of the back plate corresponding to the bending region comprises a first opening region, a first solid region and a second opening region which are disposed in sequence along the width direction of the bending region, wherein the first opening region and the second opening region are each provided with a plurality of openings, and the first side surface of the support member is attached and fixed to the first solid region.

5. The flexible display module according to claim 4 , wherein the support member has two second side surfaces which are opposite to each other, a first flexible part is connected between one of the second side surfaces of the support member and a part of the first surface of the back plate corresponding to the first opening region, and a second flexible part is connected between the other second side surface of the support member and a part of the first surface of the back plate corresponding to the second opening region; and the flexible part comprises the first flexible part and the second flexible part.

6. The flexible display module according to claim 4 , wherein the back plate further comprises a second solid region located on one side of the first opening region away from the first solid region, and a third solid region located on one side of the second opening region away from the first solid region, wherein the second solid region and the third solid region are respectively located on two sides of the bending region.

7. The flexible display module according to claim 1 , wherein a material of the back plate comprises any one or more of stainless steel, copper and aluminum; or/and a material of the support member comprises any one or more of stainless steel, copper and aluminum.

8. A foldable display apparatus, comprising a shell and a flexible display module assembled on the shell; the flexible display module comprises a bending region, and the bending region is configured to be in a bent shape when the flexible display module is in a folded state; the flexible display module further comprises a display panel and a back plate disposed on one side of the display panel away from a display side, wherein the back plate has a first surface away from the display side of the display panel; the flexible display module further comprises a support member disposed on the first surface of the back plate, wherein the support member is located in a middle region in a width direction of the bending region, and the support member is configured to be fixed with the shell of the foldable display apparatus; the support member has a first side surface and a second side surface which are adjacent to each other, the first side surface is attached and fixed to the first surface of the back plate, the second side surface extends along a length direction of the bending region, and a flexible part is connected between the second side surface and the first surface of the back plate; and a flexible layer is provided on the second side surface of the support member, a side of the flexible layer facing the back plate is bonded to the first surface of the back plate, and the flexible layer is the flexible part; and a surface of the flexible layer facing away from the second side surface of the support member is provided with a V-shaped groove extending along the length direction of the bending region; and the shell comprises a first shell, a second shell and a connecting shaft, wherein the first shell and the second shell are both hinged on the connecting shaft; parts of the flexible display module located on two sides of the bending region are respectively disposed on the first shell and the second shell; the bending region corresponds to the connecting shaft; the support member further has a third side surface opposite to the first side surface, and the third side surface of the support member is fixed on the connecting shaft.

9. The foldable display apparatus according to claim 8 , wherein intersection between the second side surface of the support member and the first surface of the back plate is filled and consolidated with a flexible fixing adhesive, and the flexible fixing adhesive is the flexible part.

10. The foldable display apparatus according to claim 9 , wherein a surface of the flexible fixing adhesive is an arc-shaped surface recessed inward, or the surface of the flexible fixing adhesive is an inclined surface.

11. The foldable display apparatus according to claim 8 , wherein a part of the back plate corresponding to the bending region comprises a first opening region, a first solid region and a second opening region which are disposed in sequence along the width direction of the bending region, wherein the first opening region and the second opening region are each provided with a plurality of openings, and the first side surface of the support member is attached and fixed to the first solid region.

12. The foldable display apparatus according to claim 11 , wherein the support member has two second side surfaces which are opposite to each other, a first flexible part is connected between one of the second side surfaces of the support member and a part of the first surface of the back plate corresponding to the first ope

Assignees

• Boe Technology Group Co Ltd

Inventors

• Luo Xiaofei
• Chu Shangchieh
• Sun Baofeng
• Yang Yanyan

Classifications

• H10K59/8794

  Arrangements for heating and cooling · CPC title

• H10K50/84 Primary

  Passivation; Containers; Encapsulations · CPC title

• H10K59/87 Primary

  Passivation; Containers; Encapsulations · CPC title

• H10K2102/311

  Flexible OLED · CPC title