Display panel, display device and electronic device

Patent metadata

Field	Value
Publication number	US-11977422-B2
Application number	US-202117356317-A
Country	US
Kind code	B2
Filing date	Jun 23, 2021
Priority date	Nov 11, 2020
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

Provided are a display panel, a display device, and an electronic device. The display panel comprises a panel main body. The panel main body comprises a first portion, a second portion and a bendable third portion, and the third portion is located between the first portion and the second portion. A reinforcement layer is provided on a first face of the first portion to make a stiffness of the first portion higher than a stiffness of the third portion.

First claim

What is claimed is:

1. A display panel, comprising a panel main body, wherein the panel main body comprises a first portion, a second portion and a bendable third portion, and the third portion is located between the first portion and the second portion; and
wherein a reinforcement layer is provided on a first face of the first portion to make a stiffness of the first portion higher than a stiffness of the third portion;
the third portion is connected to one end of the first portion, there is a notch at the one end of the first portion, forming a stepped chamfered part, and the notch is located on the side of the chamfered part away from the first face of the first portion, a surface of the chamfered part is flush with the first face of the first portion, and the reinforcement layer covers the surface of the chamfered part.

2. The display panel according to claim 1 , wherein the first portion is a panel region of the display panel, and the second portion is a light emitting region of the display panel.

3. The display panel according to claim 1 , wherein the reinforcement layer is made of an adhesive tape.

4. The display panel according to claim 1 , wherein a first edge of the reinforcement layer coincides with a boundary line of the first portion and the third portion.

5. The display panel according to claim 1 , wherein a golden finger area is provided on the first face of the first portion, and the reinforcement layer covers an area of the first face of the first portion other than the golden finger area.

6. The display panel according to claim 1 , wherein a back film is provided on a second face of the first portion and/or the second portion, the first face and the second face of the first portion are opposite to each other, and a material of the reinforcement layer is the same as a material of the back film.

7. The display panel according to claim 6 , wherein each of the reinforcement layer and the back film is made of an adhesive tape.

8. The display panel according to claim 6 , wherein a thickness of the reinforcement layer is a preset multiple of a thickness of the back film.

9. The display panel according to claim 1 , wherein a first adhesive layer is coated on a first face of the third portion, and
a stiffness of the first adhesive layer of the third portion is lower than a stiffness of the reinforcement layer of the first portion.

10. The display panel according to claim 9 , wherein the first adhesive layer is made of an ultraviolet-sensitive adhesive.

11. The display panel according to claim 1 , wherein a back film is provided on a second face of the first portion, a first adhesive layer is coated on a first face of the third portion, a stiffness of the back film is lower than a stiffness of the first adhesive layer, and the first face and the second face of the first portion are opposite to each other.

12. The display panel according to claim 2 , wherein the first portion and the second portion stack by bending the third portion to form a folded structure of the display panel, and the first face of the first portion faces outside of the folded structure.

13. The display panel according to claim 12 , wherein a back film is provided on a second face of the first portion and a second face of the second portion, the first face and the second face of the first portion are opposite to each other, and both the second face of the first portion and the second face of the second portion face inside of the folded structure.

14. The display panel according to claim 1 , wherein the first portion and/or the second portion is a bendable portion.

15. The display panel according to claim 1 , wherein panel traces are provided on the third portion, the panel traces are divided into at least two groups, and the at least two groups of panel traces intersect.

16. The display panel according to claim 15 , wherein the panel traces of the third portion are divided into two groups, and the two groups of panel traces extend in a same direction, are of uniformly waved shape, and intersect at a plurality of positions in the extending direction.

17. A display device, comprising the display panel according to claim 1 .

18. An electronic device, comprising the display device according to claim 17 .

Assignees

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

Inventors

• Wang Jiaxiang
• Feng Binfeng
• Cai Yangyang
• Wang Yanli
• Lin Xinqi
• Zhang Chao
• Gong Wei

Classifications

• G06F1/181 Primary

  Enclosures (for portable computers G06F1/1613) · CPC title

• B32B7/022

  Mechanical properties · CPC title

• B32B37/1292

  selectively, e.g. in stripes, in patterns (B32B37/0076 takes precedence) · CPC title

• G06F1/1652 Primary

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

• B32B2457/20

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