Display panel, folding method thereof, and display device

Patent metadata

Field	Value
Publication number	US-11335216-B2
Application number	US-201916622382-A
Country	US
Kind code	B2
Filing date	Nov 7, 2019
Priority date	Aug 28, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A display panel, a folding method thereof, and a display device are provided. The display panel includes a display region, a non-display region, and a bending region. Side edges of the bending region include bending points, the bending points are disposed in the bending region, and the side edges are concaved toward an interior of the bending region at the bending points. During folding, the bending points on the side edges of two sides form at least one guiding axis, which makes the display panel easier to bend, and folding precision and folding effect are good.

First claim

What is claimed is:

1. A display panel, comprising:
a display region;
a non-display region;
a bending region connected to the display region and the non-display region;
a plurality of wires disposed in the bending region; and
a buffer layer disposed in the bending region and configured to protect the wires;
wherein each of side edges of the bending region comprises a bending point, the bending point is disposed in the bending region, and each of the side edges is concaved toward an interior of the bending region at the bending point; and
wherein the side edges of the bending region comprise a first side edge and a second side edge, and a distance between the bending point and the display region is less than a distance between the bending point and the non-display region;
wherein both sides of the bending regions are provided with recesses, and a distance between the bending point and the display region is smaller than a distance between the bending point and the non-display region.

2. The display panel of claim 1 , wherein each of the first side edge and the second side edge comprises the bending point.

3. The display panel of claim 2 , wherein the bending point on the first side edge and the bending point on the second side edge are opposite to each other and symmetrical to a central axis of the bending region.

4. The display panel of claim 1 , wherein each of the side edges comprises a curve, and the bending point is disposed at a midpoint of the curve.

5. The display panel of claim 4 , wherein a distance from the bending point to a line connected to two ends of the curve ranges from 200 μm to 3000 μm.

6. The display panel of claim 1 , wherein each of the side edges comprises a polyline.

7. The display panel of claim 6 , wherein a distance from the bending point to a line connected to two ends of the polyline ranges from 200 μm to 3000 μm.

8. A display panel, comprising:
a display region;
a non-display region;
a bending region connected to the display region and the non-display region;
a plurality of wires disposed in the bending region; and
a buffer layer disposed in the bending region and configured to protect the wires;
wherein each of side edges of the bending region comprises a bending point, the bending point is disposed in the bending region, and each of the side edges is concaved toward an interior of the bending region at the bending point;
wherein both sides of the bending regions are provided with recesses, and a distance between the bending point and the display region is smaller than a distance between the bending point and the non-display region.

9. The display panel of claim 8 , wherein the side edges of the bending region comprise a first side edge and a second side edge, and each of the first side edge and the second side edge comprises the bending point.

10. The display panel of claim 9 , wherein the bending point on the first side edge and the bending point on the second side edge are opposite to each other and symmetrical to a central axis of the bending region.

11. The display panel of claim 8 , wherein each of the side edges comprises a curve, and the bending point is disposed at a midpoint of the curve.

12. The display panel of claim 11 , wherein a distance from the bending point to a line connected to two ends of the curve ranges from 200 μm to 3000 μm.

13. The display panel of claim 8 , wherein each of the side edges comprises a polyline, and a distance between the bending point and the display region is less than a distance between the bending point and the non-display region.

14. The display panel of claim 13 , wherein a distance from the bending point to a line connected to two ends of the polyline ranges from 200 μm to 3000 μm.

15. A display device comprising a display panel, the display panel comprising:
a display region;
a non-display region;
a bending region connected to the display region and the non-display region;
a plurality of wires disposed in the bending region; and
a buffer layer disposed in the bending region and configured to protect the wires;
wherein each of side edges of the bending region comprises a bending point, the bending point is disposed in the bending region, and each of the side edge is concaved toward an interior of the bending region at the bending point;
wherein both sides of the bending regions are provided with recesses, and a distance between the bending point and the display region is smaller than a distance between the bending point and the non-display region.

16. The display device of claim 15 , wherein the side edges of the bending region comprise a first side edge and a second side edge, and each of the first side edge and the second side edge comprises the bending point.

17. The display device of claim 15 , wherein each of the side edges comprises a curve, and the bending point is disposed at a midpoint of the curve.

18. The display device of claim 17 , wherein a distance from the bending point to a line connected to two ends of the curve ranges from 200 μm to 3000 μm.

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Peng Ningkun
• Wu Shaojing

Classifications

• G09F9/301 Primary

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

• G09F9/33

  being semiconductor devices, e.g. diodes · CPC title