Display panel and manufacturing method therefor, display screen, and electronic device

Patent metadata

Field	Value
Publication number	US-12484376-B2
Application number	US-202118022392-A
Country	US
Kind code	B2
Filing date	Oct 22, 2021
Priority date	Aug 31, 2020
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

This application provides a display panel, a display screen including the display panel, and an electronic device including the display screen. The display panel includes a thin film transistor backplane, an organic layer, and a packaging layer that are successively stacked. The display panel is provided with a through hole, which runs through the thin film transistor backplane, the organic layer, and the packaging layer; the display panel includes a non-display area and a display area, the non-display area being disposed around the through hole and the display area being disposed around the non-display area; the organic layer includes a first organic layer and a second organic layer, the first organic layer is a part located in the display area, and the second organic layer is a part located in the non-display area.

First claim

What is claimed is:

1 . A display panel, comprising:
a thin film transistor backplane; an organic layer; and a packaging layer, wherein the thin film transistor backplane, the organic layer, and the packaging layer are successively stacked; wherein the display panel is provided with a through hole, wherein runs through the thin film transistor backplane, the organic layer, and the packaging layer; wherein the display panel comprises a non-display area and a display area, the non-display area being disposed around the through hole and the display area being disposed around the non-display area; wherein the organic layer comprises a first organic layer and a second organic layer, the first organic layer is partially located in the display area, and the second organic layer is partially located in the non-display area, wherein the first organic layer comprises a plurality of display devices, the second organic layer is provided with a first groove that runs through the second organic layer, and the first groove is disposed around the through hole; and wherein the packaging layer covers the organic layer and is filled in the first groove.

2 . The display panel according to claim 1 , wherein a width of the first groove on a side closer to the packaging layer is greater than the width of the first groove on a side away from the packaging layer.

3 . The display panel according to claim 1 , wherein:
the thin film transistor backplane comprises a substrate and a dam disposed on the substrate, wherein the dam is located in the non-display area and is disposed around the through hole; the organic layer covers the substrate and the dam, and the first groove is spaced apart from the dam; and the packaging layer comprises a first inorganic packaging layer, an organic packaging layer, and a second inorganic packaging layer, wherein the first inorganic packaging layer covers the organic layer and is filled in the first groove, the organic packaging layer covers a part of the first inorganic packaging layer located on an outer circumference of the dam, and the second inorganic packaging layer covers the organic packaging layer and the first inorganic packaging layer.

4 . The display panel according to claim 3 , wherein the first groove is provided in both inner and outer sides of the dam.

5 . The display panel according to claim 1 , wherein the width of the first groove on the side closer to the packaging layer is 10 μm-50 μm and the width of the first groove on the side away from the packaging layer is 10 μm-50 μm.

6 . The display panel according to claim 3 ,
wherein the substrate is provided with a second groove that forms an opening on a surface of the substrate facing the organic layer, wherein the second groove does not run through the substrate, and the second groove is located between the dam and the through hole and surrounds the through hole; and wherein the first groove is located on an outer circumference of the second groove.

7 . The display panel according to claim 1 , wherein the display panel comprises a touch layer that covers the packaging layer, and the through hole runs through the touch layer.

8 . An electronic device, comprising:
an optical device; and a display screen, wherein the optical device corresponds to the through hole, and the optical device is configured to acquire a light ray passing through a transparent area and the through hole, wherein the display screen comprises a cover plate and the display panel according to claim 1 , wherein the cover plate is laminated to the display panel, and wherein the packaging layer is located between the cover plate and the organic layer.

9 . The electronic device according to claim 8 ,
wherein the cover plate comprises a first transparent area, an opaque area, and a second transparent area; wherein the first transparent area is disposed around the opaque area and the opaque area is disposed around the second transparent area; and wherein the display area is located in the first transparent area, the opaque area corresponds to the non-display area, and the second transparent area corresponds to the through hole.

10 . The electronic device according to claim 9 , wherein a boundary of the opaque area and the second transparent area falls within a boundary of the through hole.

Assignees

• Honor Device Co Ltd

Inventors

• Long Haohui
• Wei Shanshan
• Fang Jianping
• Li Xiaolong

Classifications

• H10K71/00

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

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/873

  Encapsulations · CPC title