Flexible display structure, method for manufacturing the same, and display device

Patent metadata

Field	Value
Publication number	US-12228970-B2
Application number	US-202117613120-A
Country	US
Kind code	B2
Filing date	Mar 10, 2021
Priority date	Apr 20, 2020
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

Provided is a flexible display structure, including a reinforcing strip, and a flexible display panel and a supporting layer that are laminated. The flexible display panel is provided with a first surface and a second surface opposite to each other, and a first side surface connecting the first surface and the second surface, and the reinforcing strip is disposed on the first side surface and configured to adhere the flexible display panel to the supporting layer.

First claim

What is claimed is:

1. A flexible display structure, comprising: a reinforcing strip, and a flexible display panel, and a supporting layer that are laminated, wherein the flexible display panel is provided with a first surface and a second surface opposite to each other, and a first side surface connecting the first surface and the second surface, and the reinforcing strip is disposed on the first side surface and configured to adhere the flexible display panel to the supporting layer.

2. The flexible display structure according to claim 1 , wherein the supporting layer is provided with a third surface and a fourth surface opposite to each other, and a second side surface connecting the third surface and the fourth surface, wherein the third surface is attached to the second surface, and an orthographic projection of the flexible display panel on the third surface is within the third surface; and wherein the reinforcing strip is configured to adhere the third surface and the first side surface, or the reinforcing strip is disposed on the second side surface and configured to adhere the third surface, the first side surface and the second side surface.

3. The flexible display structure according to claim 1 , wherein the supporting layer is provided with a third surface and a fourth surface opposite to each other, and a second side surface connecting the third surface and the fourth surface, wherein the third surface is attached to the second surface, an orthographic projection of the flexible display panel on the third surface is in coincidence with the third surface, and the reinforcing strip is configured to adhere the first side surface and the second side surface.

4. The flexible display structure according to claim 2 , wherein the reinforcing strip is distributed between a plane where the first surface is disposed and a plane where the fourth surface is disposed.

5. The flexible display structure according to claim 1 , further comprising a transparent cover plate laminated on the flexible display panel, wherein the flexible display panel is disposed between the transparent cover plate and the supporting layer, and the reinforcing strip is configured to adhere the transparent cover plate and the flexible display panel.

6. The flexible display structure according to claim 5 , wherein the transparent cover plate is provided with a fifth surface and a sixth surface opposite to each other, and a third side surface connecting the fifth surface and the sixth surface, wherein the sixth surface is attached to the first surface, and an orthographic projection of the flexible display panel on the sixth surface is within the sixth surface; and wherein the reinforcing strip is configured to adhere the sixth surface and the first side surface, or the reinforcing strip is disposed on the third side surface and configured to adhere the first side surface, the sixth surface and the third side surface.

7. The flexible display structure according to claim 5 , wherein the transparent cover plate is provided with a fifth surface and a sixth surface opposite to each other, and a third side surface connecting the fifth surface and the sixth surface, wherein the sixth surface is attached to the first surface, an orthographic projection of the flexible display panel on the sixth surface is in coincidence with the sixth surface, and the reinforcing strip is configured to adhere the first side surface and the third side surface.

8. The flexible display structure according to claim 6 , wherein the reinforcing strip is distributed between a plane where the fifth surface is disposed and a plane where a surface, distal from the flexible display panel, of the supporting layer is disposed.

9. The flexible display structure according to claim 1 , wherein a surface, distal from the first side surface, of the reinforcing strip is a flat surface or a smooth curved surface.

10. The flexible display structure according to claim 1 , wherein a distance between the first side surface and a surface, distal from the first side surface, of the reinforcing strip ranges from 5 μm to 300 μm.

11. The flexible display structure according to claim 1 , wherein the reinforcing strip is arranged around the first side surface.

12. The flexible display structure according to claim 1 , wherein the reinforcing strip is formed by curing an ultraviolet-moisture dual-curing adhesive.

13. The flexible display structure according to claim 1 , wherein a storage modulus of the reinforcing strip ranges from 60 kpa to 150 kpa and a shear strength of the reinforcing strip ranges from 3 kgf/cm 2 to 5 kgf/cm 2 .

14. The flexible display structure according to claim 1 , wherein an adhesive layer is provided between the flexible display panel and the supporting layer, and an orthographic projection of the adhesive layer on the supporting layer is within an orthographic projection of the flexible display panel on the supporting layer.

15. The flexible display structure according to claim 1 , wherein the flexible display panel comprises a panel body, a polarizer, and a polyethylene terephthalate film that are laminated, wherein the polarizer and the polyethylene terephthalate film are disposed on two sides of the panel body respectively, and the polyethylene terephthalate film and the supporting layer are disposed on a same side of the panel body.

16. A method for manufacturing a flexible display structure, comprising:
providing a flexible display panel and a supporting layer that are laminated, wherein the flexible display panel is provided with a first surface and a second surface opposite to each other, and a first side surface connecting the first surface and the second surface; and
forming a reinforcing strip on the first side surface, wherein the reinforcing strip is configured to adhere the flexible display panel to the supporting layer.

17. The method according to claim 16 , wherein forming the reinforcing strip on the first side surface comprises:
spraying an ultraviolet-moisture dual-curing adhesive on the first side surface via a nozzle; and
forming the reinforcing strip by curing the ultraviolet-moisture dual-curing adhesive.

18. The method according to claim 17 , wherein forming the reinforcing strip by curing the ultraviolet-moisture dual-curing adhesive comprises:
irradiating, while spraying the ultraviolet-moisture dual-curing adhesive on the first side surface, the ultraviolet-moisture dual-curing adhesive as sprayed on the first side surface with ultraviolet light until the ultraviolet-moisture dual-curing adhesive is cured into the reinforcing strip.

19. The method according to claim 17 , wherein forming the reinforcing strip by curing the ultraviolet-moisture dual-curing adhesive comprises:
irradiating, while spraying the ultraviolet-moisture dual-curing adhesive on the first side surface, the ultraviolet-moisture dual-curing adhesive as sprayed on the first side surface with ultraviolet light until the ultraviolet-moisture dual-curing adhesive is semi-cured; and
allowing the flexible display panel to stand still until the ultraviolet-moisture dual-curing adhesive is completely cured.

20. A display device comprising a flexible display structure, wherein the flexible display structure comprises a reinforcing strip, and a flexible display panel, and a supporting layer that are laminated,
wherein the flexible display panel is provided with a first surface and a second surface opposite to each other, and a first side surface connecting the first surface and the second surface, a

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Liu Shaokui
• Qing Wei
• Tang Qiang
• Wang Zhihui
• Liu Xingguo
• Bi Xianlei

Classifications

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• H04M1/185

  Improving the shock resistance of the housing, e.g. by increasing the rigidity · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• H04M1/0268

  including a flexible display panel · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title