Display device and display panel

Patent metadata

Field	Value
Publication number	US-11587989-B2
Application number	US-202016929361-A
Country	US
Kind code	B2
Filing date	Jul 15, 2020
Priority date	Aug 14, 2019
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

The present disclosure relates to a display device, a display panel, and a manufacturing method thereof. The display panel includes a substrate, a driving layer, and a display layer. The substrate has an opening area, a transition area surrounding the opening area, and a display area surrounding the transition area. The driving layer is disposed on a side of the substrate and covers at least the transition area and the display area, an area of the driving layer being located in the transition area being provided with a separation groove surrounding the opening area, the separation groove including a first groove body and a second groove body sequentially communicated toward the substrate in a direction perpendicular to the substrate, and a distance between bottom ends of side walls of the first groove body being smaller than a distance between top ends of side walls of the second groove body.

First claim

What is claimed is:

1. A display panel, comprising:
a substrate having an opening area, a transition area surrounding the opening area, and a display area surrounding the transition area;
a driving layer disposed on a side of the substrate and covering at least the transition area and the display area, wherein an area of the driving layer located in the transition area is provided with a separation groove surrounding the opening area, the separation groove comprises a first groove body and a second groove body which are sequentially communicated toward the substrate in a direction perpendicular to the substrate, and a distance between bottom ends of two side walls of the first groove body is smaller than a distance between top ends of two side walls of the second groove body; and
a display layer covering the driving layer, and comprising a light-emitting layer, wherein the light-emitting layer is discontinuous in the second groove body,
wherein a number of the separation grooves is multiple, diameters of the multiple separation grooves are different from each other, and the multiple separation grooves are distributed in a concentric-ring shape.

2. The display panel according to claim 1 , wherein the driving layer comprises:
a gate disposed on the substrate and located in the display area;
a gate insulator layer covering the gate and covering at least the transition area and the display area;
an active layer disposed on a surface of the gate insulator layer away from the substrate and directly opposite to the gate;
an insulator layer covering the active layer and the gate insulator layer; and
a source and a drain disposed on a surface of the insulator layer away from the substrate, and coupled to both ends of the active layer; and
wherein the separation groove extends from the insulator layer to the gate insulator layer in the direction perpendicular to the substrate.

3. The display panel according to claim 2 , wherein a bottom of the second groove body exposes the substrate, and a height of the second groove body in the direction perpendicular to the substrate is same as a thickness of the gate.

4. The display panel according to claim 1 , wherein the two side walls of the first groove body are perpendicular to the substrate, and the two side walls of the second groove body are perpendicular to the substrate.

5. The display panel according to claim 1 , wherein the display panel further comprises a packaging layer covering the display layer and filling the separation groove.

6. The display panel according to claim 1 , wherein an area of the display layer located in the opening area is provided with a through hole at least penetrating the display layer and the driving layer.

7. The display panel according to claim 1 , wherein a shape of the separation groove is a closed ring shape surrounding the opening area.

8. The display panel according to claim 1 , wherein the two side walls of the first groove body comprises steps.

9. A display device, comprising a display panel, wherein the display panel comprises:
a substrate having an opening area, a transition area surrounding the opening area, and a display area surrounding the transition area;
a driving layer disposed on a side of the substrate and covering at least the transition area and the display area, wherein an area of the driving layer located in the transition area is provided with a separation groove surrounding the opening area, the separation groove comprises a first groove body and a second groove body which are sequentially communicated toward the substrate in a direction perpendicular to the substrate, and a distance between bottom ends of two side walls of the first groove body is smaller than a distance between top ends of two side walls of the second groove body; and
a display layer covering the driving layer, and comprising a light-emitting layer, wherein the light-emitting layer is discontinuous in the second groove body,
wherein a number of the separation grooves is multiple, diameters of the multiple separation grooves are different from each other, and the multiple separation grooves are distributed in a concentric-ring shape.

10. The display device according to claim 9 , wherein the driving layer comprises:
a gate disposed on the substrate and located in the display area;
a gate insulator layer covering the gate and covering at least the transition area and the display area;
an active layer disposed on a surface of the gate insulator layer away from the substrate and directly opposite to the gate;
an insulator layer covering the active layer and the gate insulator layer; and
a source and a drain, disposed on a surface of the insulator layer away from the substrate, and coupled to both ends of the active layer; and
wherein the separation groove extends from the insulator layer to the gate insulator layer in the direction perpendicular to the substrate.

11. The display device according to claim 10 , wherein a bottom of the second groove body exposes the substrate, and a height of the second groove body in the direction perpendicular to the substrate is same as a thickness of the gate.

12. The display device according to claim 9 , wherein the two side walls of the first groove body are perpendicular to the substrate, and the two side walls of the second groove body are perpendicular to the substrate.

13. The display device according to claim 9 , wherein the two side walls of the first groove body comprises steps.

Assignees

• Chongqing Boe Display Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wu Xinwei
• Sun Shicheng
• Zhang Zhen
• Zhang Wei
• Li Cunzhi
• Kwak Jonguk

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/88

  Dummy elements, i.e. elements having non-functional features · CPC title

• H10K59/124 Primary

  Insulating layers formed between TFT elements and OLED elements · CPC title