Flexible display panel and film-like structure

Patent metadata

Field	Value
Publication number	US-10990130-B2
Application number	US-201715752451-A
Country	US
Kind code	B2
Filing date	Aug 3, 2017
Priority date	Jan 25, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A flexible display panel and a film-like structure are provided according to the present disclosure. The flexible display panel includes a flexible display structure and a film-like structure arranged on at least one side of the flexible display structure. The film-like structure includes: a first flexible layer, a second flexible layer, a filler sealed between the first flexible layer and the second flexible layer, and a heater configured to heat the filler. A hardness of the filler varies with a temperature of the filler.

First claim

What is claimed is:

1. A flexible display panel, comprising:
a flexible display structure; and
a film-like structure on at least one side of the flexible display structure,
wherein the film-like structure comprises: a first flexible layer, a second flexible layer, a filler sealed between the first flexible layer and the second flexible layer, and a heater configured to heat the filler;
wherein a hardness of the filler varies with a temperature of the filler.

2. The flexible display panel according to claim 1 , wherein the filler comprises a thermal characteristic material, the thermal characteristic material is in a solid state in a case that the temperature is within a first threshold interval, and the thermal characteristic material is in a liquid state in a case that the temperature is within a second threshold interval.

3. The flexible display panel according to claim 2 , wherein the thermal characteristic material comprises at least one of wax and resin.

4. The flexible display panel according to claim 2 , wherein the filler further comprises a flexible porous layer, and the flexible porous layer comprises at least one porous structure; and
wherein the thermal characteristic material is filled in the at least one porous structure.

5. The flexible display panel according to claim 2 , wherein the filler comprises a flexible porous layer, the flexible porous layer comprises a plurality of porous structures, and the thermal characteristic material is filled in the porous structures;
wherein the heater comprises a metal frame and a wire connected with the metal frame, the metal frame is of a grid structure, and the porous structures are arranged in grids of the grid structure.

6. The flexible display panel according to claim 5 , wherein the flexible porous layer is a sponge.

7. The flexible display panel according to claim 1 , wherein the heater comprises a metal frame and a wire connected with the metal frame.

8. The flexible display panel according to claim 7 , wherein the metal frame and a portion of the wire are between the first flexible layer and the second flexible layer, and the other portion of the wire extends to an outside of the first flexible layer and the second flexible layer.

9. The flexible display panel according to claim 7 , further comprising: a power supply connected with the wire; and a switch configured to control the wire to be connected or disconnected with the power supply.

10. The flexible display panel according to claim 1 , wherein the film-like structure further comprises a cooler configured to cool the filler.

11. The flexible display panel according to claim 10 , wherein the cooler comprises a plurality of piezoelectric cooling components arranged at intervals, each of the piezoelectric cooling components comprises a cold surface and a hot surface, and the cold surface is configured to cool the filler.

12. A method for controlling a flexible display panel to be switched between rigidity and flexibility, wherein the flexible display panel comprises: a flexible display structure and a film-like structure arranged on at least one side of the flexible display structure, the film-like structure comprises: a first flexible layer, a second flexible layer, a filler sealed between the first flexible layer and the second flexible layer, and a heater configured to heat the filler, and a hardness of the filler varies with a temperature of the filler; and
wherein the method comprises:
controlling, by the heater, the temperature of the filler to be increased from a first threshold interval within which the filler is in a solid state to a second threshold interval within which the filler is in a liquid state; and
controlling, by the cooler, the temperature of the filler to be decreased from the second threshold interval to the first threshold interval.

13. A film-like structure, comprising:
a first flexible layer;
a second flexible layer;
a filler sealed between the first flexible layer and the second flexible layer; and
a heater configured to heat the filler;
wherein a hardness of the filler varies with a temperature of the filler.

14. The film-like structure according to claim 13 , wherein the filler comprises a thermal characteristic material, the thermal characteristic material is in a solid state in a case that the temperature is within a first threshold interval, and the thermal characteristic material is in a liquid state in a case that the temperature is within a second threshold interval.

15. The film-like structure according to claim 14 , wherein the thermal characteristic material comprises at least one of wax and resin.

16. The film-like structure according to claim 15 , wherein the filler further comprises a flexible porous layer, the flexible porous layer comprises at least one porous structure, and the thermal characteristic material is filled in the porous structure.

17. The film-like structure according to claim 15 , wherein the flexible porous layer is a sponge.

18. The film-like structure according to claim 13 , wherein the heater comprises a metal frame and a wire connected with the metal frame.

19. The film-like structure according to claim 13 , wherein the film-like structure further comprises a cooler configured to cool the filler.

20. The film-like structure according to claim 19 , wherein the cooler comprises a plurality of piezoelectric cooling components arranged at intervals, each of the piezoelectric cooling components comprises a cold surface and a hot surface, and the cold surface is configured to cool the filler.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Ding Yuankui
• Yuan Guangcai
• Zhao Ce

Classifications

• G06F1/1652 Primary

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

• G09F9/301 Primary

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

• B32B7/027

  Thermal properties · CPC title

• B32B2307/30

  having particular thermal properties · CPC title

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title