Display panel and display device

Patent metadata

Field	Value
Publication number	US-11747934-B2
Application number	US-202117474321-A
Country	US
Kind code	B2
Filing date	Sep 14, 2021
Priority date	Jul 30, 2019
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A display panel includes a first substrate, a light-emitting functional layer, a second substrate, an optical adhesive layer and a polarizer stacked in sequence. The display panel includes a display area and a non-display area. The display panel further includes a touch-control driving plate disposed on a surface of a first portion of the second substrate facing away from the light-emitting functional layer. The first portion of the second substrate is in the non-display area. The optical adhesive layer covers a second portion of the touch-control driving plate. A distance between a surface of the optical adhesive layer facing away from the light-emitting functional layer and the light-emitting functional layer is greater than or equal to a distance between a surface of the touch-control driving plate facing away from the light-emitting functional layer and the light-emitting functional layer.

First claim

What is claimed is:

1. A display panel, comprising:
a first substrate, a light-emitting functional layer, a second substrate, an optical adhesive layer and a polarizer stacked in sequence,
wherein the display panel comprises a display area and a non-display area located on at least one side of the display area;
the display panel further comprises a touch-control driving plate disposed on a surface of a first portion of the second substrate facing away from the light-emitting functional layer, the first portion of the second substrate is in the non-display area; the optical adhesive layer covers a second portion of the touch-control driving plate; a distance between a surface of the optical adhesive layer facing away from the light-emitting functional layer and the light-emitting functional layer is greater than a distance between a surface of the touch-control driving plate facing away from the light-emitting functional layer and the light-emitting functional layer;
wherein a thickness of a third portion of the optical adhesive layer not covering the touch-control driving plate is twice or more than twice a thickness of the touch-control driving plate.

2. The display panel of claim 1 , wherein a vertical projection of the polarizer on the second substrate partially overlaps a vertical projection of the touch-control driving plate on the second substrate.

3. The display panel of claim 1 , wherein a thickness of the third portion of the optical adhesive layer not covering the touch-control driving plate ranges from 40 microns to 200 microns.

4. The display panel of claim 1 , wherein a thickness of the first portion of the second substrate provided with the touch-control driving plate is less than a thickness of a fourth portion of the second substrate located in the display area.

5. The display panel of claim 1 , wherein the optical adhesive layer covers a lateral edge of the first portion of the second substrate, and the first portion of the second substrate is provided with the touch-control driving plate.

6. The display panel of claim 1 , wherein the optical adhesive layer is a heat curing adhesive layer.

7. The display panel of claim 6 , wherein the optical adhesive layer is doped with at least one of phenolic resin, melamine resin, epoxy resin and polyurethane resin.

8. The display panel of claim 1 , wherein the second substrate comprises an encapsulation glass, and the second substrate further comprises a touch-control electrode layer;
the touch-control electrode layer is disposed on a surface of the encapsulation glass facing away from the first substrate; and
the touch-control electrode layer is electrically connected to the touch-control driving plate.

9. The display panel of claim 1 , wherein the second substrate comprises a thin-film encapsulation layer, and the second substrate further comprises a touch-control electrode layer;
the touch-control electrode layer is disposed on a surface of the thin-film encapsulation layer facing away from the first substrate, or the touch-control electrode layer is disposed in the thin-film encapsulation layer; and
the touch-control electrode layer is electrically connected to the touch-control driving plate.

10. A display panel, comprising:
a first substrate, a light-emitting functional layer, a second substrate, an optical adhesive layer and a polarizer stacked in sequence,
wherein the display panel comprises a display area and a non-display area located on at least one side of the display area;
the display panel further comprises a touch-control driving plate disposed on a surface of a first portion of the second substrate facing away from the light-emitting functional layer, the first portion of the second substrate is in the non-display area; the optical adhesive layer covers a second portion of the touch-control driving plate; a distance between a surface of the optical adhesive layer facing away from the light-emitting functional layer and the light-emitting functional layer is greater than a distance between a surface of the touch-control driving plate facing away from the light-emitting functional layer and the light-emitting functional layer;
wherein the optical adhesive layer covers a lateral edge of the first portion of the second substrate, and the first portion of the second substrate is provided with the touch-control driving plate.

11. The display panel of claim 10 , wherein a vertical projection of the polarizer on the second substrate partially overlaps a vertical projection of the touch-control driving plate on the second substrate.

12. The display panel of claim 10 , wherein the second substrate comprises an encapsulation glass, and the second substrate further comprises a touch-control electrode layer;
the touch-control electrode layer is disposed on a surface of the encapsulation glass facing away from the first substrate; and
the touch-control electrode layer is electrically connected to the touch-control driving plate.

13. The display panel of claim 10 , wherein the second substrate comprises a thin-film encapsulation layer, and the second substrate further comprises a touch-control electrode layer;
the touch-control electrode layer is disposed on a surface of the thin-film encapsulation layer facing away from the first substrate, or the touch-control electrode layer is disposed in the thin-film encapsulation layer; and
the touch-control electrode layer is electrically connected to the touch-control driving plate.

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Xiong Shuihu
• Guo Feng
• Hu Yongxue
• Zhao Lingling
• Feng Kai

Classifications

• H10H20/855

  Optical field-shaping means, e.g. lenses · CPC title

• H10H20/852

  Encapsulations · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• H01L33/52

  Electricity · mapped topic