Irregularly-shaped display panel and display device

Patent metadata

Field	Value
Publication number	US-12082476-B2
Application number	US-202117593979-A
Country	US
Kind code	B2
Filing date	Aug 6, 2021
Priority date	Jul 9, 2021
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

An irregularly-shaped display panel and a display device are disclosed. The irregularly-shaped display panel includes an encapsulation area arranged around an opening and an irregularly-shaped display area arranged around the encapsulation area. A plurality of undercut structures in the encapsulation area are spaced apart from each other. The undercut structures include at least one first undercut structure and at least one second undercut structure. The first undercut structure includes a continuous first undercut groove, and the second undercut structure includes a plurality of second undercut grooves separated from each other and a partition part located between the second undercut grooves.

First claim

What is claimed is:

1. An irregularly-shaped display panel, wherein an opening is defined on the irregularly-shaped display panel, and the irregularly-shaped display panel comprises an encapsulation area arranged around the opening and an irregularly-shaped display area arranged around the encapsulation area;
wherein the irregularly-shaped display panel further comprises a plurality of undercut structures located in the encapsulation area and arranged around the opening, and the undercut structures are spaced apart from each other;
wherein the plurality of undercut structures comprise at least one first undercut structure and at least one second undercut structure, the first undercut structure comprises a continuous first undercut groove, the second undercut structure comprises a plurality of second undercut grooves separated from each other and a partition part located between adjacent two of the second undercut grooves, and one of the at least one first undercut structure is arranged adjacent to the irregularly-shaped display area; and
wherein a plurality of second undercut structures are arranged in the encapsulation area, wherein the partition parts of adjacent two of the second undercut structures are in a staggered arrangement.

2. The irregularly-shaped display panel according to claim 1 , wherein all of the partition parts of the second undercut structures are in a staggered arrangement.

3. The irregularly-shaped display panel according to claim 1 , wherein a plurality of first undercut structures are arranged in the encapsulation area, and the first undercut structures and the second undercut structures are spaced apart.

4. The irregularly-shaped display panel according to claim 1 , wherein a plurality of first undercut structures are arranged in the encapsulation area, and at least one of the first undercut structures is arranged between the second undercut structures.

5. The irregularly-shaped display panel according to claim 4 , wherein a blocking wall is arranged in the encapsulation area, at least one of the first undercut structures is arranged near a side of the blocking wall close to the irregularly-shaped display area, and at least one of the first undercut structures is arranged near a side of the blocking wall away from the irregularly-shaped display area.

6. The irregularly-shaped display panel according to claim 5 , wherein the second undercut structures are arranged near the side of the blocking wall away from the irregularly-shaped display area, wherein at least one of the first undercut structures is arranged between the second undercut structures arranged near the side of the blocking wall away from the irregularly-shaped display area and the blocking wall.

7. The irregularly-shaped display panel according to claim 6 , wherein at least one of the first undercut structures is arranged between the second undercut structures arranged near the side of the blocking wall away from the irregularly-shaped display area.

8. The irregularly-shaped display panel according to claim 6 , wherein at least one of the second undercut structures is arranged near the side of the blocking wall close to the irregularly-shaped display area.

9. The irregularly-shaped display panel according to claim 1 , wherein the irregularly-shaped display area comprises a first irregularly-shaped boundary extending along a first direction and two second irregularly-shaped boundaries extending along a second direction, and the two second irregularly-shaped boundaries are located at two ends of the first irregularly-shaped boundary, a length of the first irregularly-shaped boundary is greater than a length of the second irregularly-shaped boundary, wherein the partition parts are arranged opposite the first irregularly-shaped boundary.

10. A display device, wherein the display device comprises an optical element and an irregularly-shaped display panel, an opening is defined on the irregularly-shaped display panel, the optical element is arranged in the opening, and the irregularly-shaped display panel comprises an encapsulation area arranged around the opening and an irregularly-shaped display area arranged around the encapsulation area;
wherein the irregularly-shaped display panel further comprises a plurality of undercut structures located in the encapsulation area and arranged around the opening, and the plurality of undercut structures are spaced apart from each other;
wherein the plurality of undercut structures comprise at least one first undercut structure and at least one second undercut structure, the first undercut structure comprises a continuous first undercut groove, and the second undercut structure comprises a plurality of second undercut grooves separated from each other and a partition part located between adjacent two of the second undercut grooves, and one of the at least one first undercut structure is arranged adjacent to the irregularly-shaped display area; and
wherein a plurality of second undercut structures are arranged in the encapsulation area, wherein the partition parts of adjacent two of the second undercut structures are in a staggered arrangement.

11. The display device according to claim 10 , wherein all of the partition parts of the second undercut structures are in a staggered arrangement.

12. The display device according to claim 10 , wherein a plurality of first undercut structures are arranged in the encapsulation area, and the first undercut structures and the second undercut structures are spaced apart.

13. The display device according to claim 10 , wherein a plurality of first undercut structures are arranged in the encapsulation area, at least one of the first undercut structures is arranged between the second undercut structures.

14. The display device according to claim 12 , wherein a blocking wall is arranged in the encapsulation area, at least one of the first undercut structures is arranged near a side of the blocking wall close to the irregularly-shaped display area, and at least one of the first undercut structures is arranged near a side of the blocking wall away from the irregularly-shaped display area.

15. The display device according to claim 14 , wherein the second undercut structures are arranged near the side of the blocking wall away from the irregularly-shaped display area, wherein at least one of the first undercut structures is arranged between the second undercut structures arranged near the side of the blocking wall away from the irregularly-shaped display area and the blocking wall.

16. The display device according to claim 15 , wherein at least one of the first undercut structures is arranged between the second undercut structures arranged near the side of the blocking wall away from the irregularly-shaped display area.

17. The display device according to claim 15 , wherein at least one of the second undercut structures is arranged near the side of the blocking wall close to the irregularly-shaped display area.

18. The display device according to claim 10 , wherein the irregularly-shaped display area comprises a first irregularly-shaped boundary extending along a first direction and two second irregularly-shaped boundaries extending along a second direction, and the two second irregularly-shaped boundaries are located at two ends of the first irregularly-shaped boundary, a length of the first irregularly-shaped boundary is greater than a length of the second irregularly-shaped boundary, wherein the partition parts are disposed opposite the first irregularly-shaped boundary.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd
• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Wang Yijia
• Zhang Ming
• Wang Ao

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K77/10

  Substrates, e.g. flexible substrates · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/00

  Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00 · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title