Flexible display panel and display apparatus including the same

Patent metadata

Field	Value
Publication number	US-9414463-B2
Application number	US-201514821621-A
Country	US
Kind code	B2
Filing date	Aug 7, 2015
Priority date	Jun 27, 2012
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A flexible display panel and a display apparatus including the flexible display panel are disclosed. The flexible display panel includes an encapsulated panel, a first protective film on one side of the encapsulated panel, and a second protective film on another side of the encapsulated panel. The encapsulated panel includes a flexible panel and a flexible encapsulation member on the flexible panel. The flexible panel includes a first region on a first plane and that includes a display region, and a second region on a second plane that is bent with respect to the first plane and that includes a non-display region. The flexible encapsulation member encapsulates the display region. The display apparatus also includes a support unit for maintaining a shape of the flexible panel.

First claim

What is claimed is:

1. A flexible display panel having a display region and a first non-display region on a first plane and a second non-display region on a second plane that is bent with respect to the first plane, the flexible display panel comprising:
a first protective film;
an encapsulated panel on the first protective film and comprising:
a flexible substrate;
a layer on the flexible substrate and in each of the display region, the first non-display region and the second non-display region; and
a flexible encapsulation member on the flexible substrate to encapsulate the layer therebetween; and

a second protective film on the encapsulated panel.

2. The flexible display panel of claim 1 , wherein the first protective film and the second protective film completely cover the display region and the second non-display region.

3. The flexible display panel of claim 1 ,
wherein the display region is configured to display in a first direction in which the first plane is facing, and
wherein the second non-display region is not facing the first direction.

4. The flexible display panel of claim 1 , wherein an area ratio of the second non-display region to the display region as observed from a first direction in which the first plane is facing when the flexible display panel is not bent, is larger than an area ratio of the second non-display region to the display region as observed from the first direction when the flexible display panel is bent.

5. The flexible display panel of claim 1 ,
wherein the flexible display panel further has a border region between the display region on the first plane and the second non-display region on the second plane, and
wherein the border region has a curved surface having a curvature radius.

6. The flexible display panel of claim 5 , wherein the curvature radius is constant.

7. The flexible display panel of claim 6 , wherein the curvature radius is between 0.01 mm and 10 mm.

8. The flexible display panel of claim 5 , wherein the curved surface has an arc shape.

9. The flexible display panel of claim 5 , wherein the display region extends into the border region.

10. The flexible display panel of claim 5 , wherein the second non-display region extends into the border region.

11. The flexible display panel of claim 10 , wherein the display region extends into the border region.

12. The flexible display panel of claim 1 , wherein the second non-display region on the second plane extends onto a third plane that is bent with respect to the second plane and substantially parallel to the first plane.

13. The flexible display panel of claim 12 , wherein the second non-display region on the third plane includes a pad unit.

14. The flexible display panel of claim 1 , wherein the encapsulated panel further comprises a barrier layer between the flexible substrate and the layer.

15. The flexible display panel of claim 1 , wherein the first protective film and the second protective film are symmetrical with each other.

16. The flexible display panel of claim 1 , wherein the first protective film or the second protective film comprises a polarization film.

17. The flexible display panel of claim 1 , wherein the first protective film covers the flexible substrate and the second protective film covers the flexible encapsulation member.

18. The flexible display panel of claim 1 , wherein the flexible encapsulation member comprises an insulating layer comprising an inorganic layer or an organic layer.

19. The flexible display panel of claim 1 , further comprising a touch panel on the encapsulated panel and configured to display an image of the display region.

20. The flexible display panel of claim 19 , wherein the touch panel comprises a flexible film that is bent to correspond to a shape of the flexible display panel.

21. The flexible display panel of claim 20 , wherein the touch panel comprises:
a touch region on the flexible film and corresponding to the display region; and
a wiring region outside the touch region.

22. A display apparatus having a display region and a first non-display region on a first plane and a second non-display region on a second plane that is bent with respect to the first plane, the display apparatus comprising:
a first protective film;
a flexible encapsulated panel on the first protective film and comprising:
a flexible substrate;
a layer on the flexible substrate and in each of the display region, the first non-display region and the second non-display region; and
a flexible encapsulation member on the flexible substrate to encapsulate the layer therebetween;

a second protective film on the flexible encapsulated panel; and
a support unit for maintaining a shape of the flexible encapsulated panel.

23. The display apparatus of claim 22 , wherein the support unit comprises a transparent protection window.

24. The flexible display panel of claim 1 , wherein the second protective film cover the display region and leave the second non-display region uncovered.

Assignees

• Samsung Display Co Ltd

Inventors

• Ka Ji-Hyun
• Kwak Won-Kyu

Classifications

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• H05B33/04

  Sealing arrangements {, e.g. against humidity} · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F1/1601

  Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64) · CPC title