Display panel, manufacturing method of display panel, and display apparatus

Patent metadata

Field	Value
Publication number	US-11770957-B2
Application number	US-202117357397-A
Country	US
Kind code	B2
Filing date	Jun 24, 2021
Priority date	Dec 21, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Disclosed are a display panel, a manufacturing method of the display panel, and a display apparatus. The display panel includes: a base substrate; and a pixel circuit film layer disposed on the base substrate. The display panel has a plurality of island regions, opening regions between the adjacent island regions, and bridge regions connecting adjacent island regions. Where the plurality of island regions are provided therein the base substrate and the pixel circuit film layer; the opening regions each is provided with a first via hole, and the first via hole runs through the base substrate and the pixel circuit film layer. The display panel further comprises: deformable components each filling the first via hole; where each deformable component comprises an elastic material.

First claim

What is claimed is:

1. A display panel, comprising:
a base substrate; and
a pixel circuit film layer disposed on the base substrate;
wherein the display panel has a plurality of island regions, opening regions between the adjacent island regions, and bridge regions connecting adjacent island regions;
wherein
the base substrate and the pixel circuit film layer are provided in the plurality of island regions;
the opening regions each is provided with a first via hole, and the first via hole runs through the base substrate and the pixel circuit film layer;

wherein the display panel further comprises:
deformable components each filling the first via hole;
wherein each deformable component comprises an elastic material;

a first protective layer on a side, facing away from the base substrate, of the pixel circuit film layer; and
a second protective layer on a side, facing away from the pixel circuit film layer, of the base substrate;
wherein both the first protective layer and the second protective layer cover the deformable components;

a first electrode layer between the first protective layer and the deformable components; and
a second electrode layer between the second protective layer and the deformable components;
wherein in each opening region, an orthographic projection of the first electrode layer on the base substrate overlaps an orthographic projection of the second electrode layer on the base substrate; and both the first electrode layer and the second electrode layer are in contact with the deformable components.

2. The display panel according to claim 1 , wherein each deformable component further comprises:
a plurality of particles uniformly dispersed in the elastic material; wherein
the plurality of particles comprise: water absorbent particles and/or readily oxidizable particles.

3. The display panel according to claim 2 , wherein a diameter of the particles is 10 nm to 10 μm.

4. The display panel according to claim 2 , wherein a material of the particles comprises one or a combination of following: calcium fluoride, lithium fluoride, magnesium, and silver.

5. The display panel according to claim 1 , wherein an elastic modulus of the elastic material is 10 KPa to 20 MPa.

6. The display panel according to claim 5 , wherein the elastic material comprises one or a combination of following: polydimethylsiloxane, thermoplastic polyurethanes, and rubber.

7. The display panel according to claim 1 , wherein the first protective layer and the second protective layer comprise elastic materials.

8. The display panel according to claim 1 , wherein
the first electrode layer comprises:
a plurality of first electrodes corresponding to the deformable components in one-to-one correspondence; and
first connecting leads electrically connected with the first electrodes;
wherein a projection of each first electrode on the base substrate overlaps a projection of a corresponding deformable component on the base substrate;

and
the second electrode layer comprises a planar electrode disposed on an entire surface; or
the second electrode layer comprises:
a plurality of second electrodes corresponding to the deformable components in one-to-one correspondence; and
second connecting leads electrically connected with the second electrodes;
wherein an orthographic projection of each first electrode on the base substrate overlaps an orthographic projection of a corresponding second electrode on the base substrate.

9. The display panel according to claim 1 , wherein each deformable component further comprises: conductive portions uniformly dispersed in the elastic material.

10. The display panel according to claim 9 , wherein the conductive portions comprise one or a combination of following: metal particles, carbon black particles, carbon nanotubes, and graphene.

11. The display panel according to claim 1 , further comprising:
a first encapsulation layer between the first electrode layer and the pixel circuit film layer; and
a second encapsulation layer between the second electrode layer and the base substrate;
wherein
each first via hole runs through the first encapsulation layer and the second encapsulation layer; and
the first encapsulation layer and the second encapsulation layer comprise elastic materials.

12. A manufacturing method of a display panel, wherein the display panel comprises: a plurality of island regions, opening regions located between the adjacent island regions, and bridge regions connecting the adjacent island regions;
wherein the method comprises:
providing a base substrate;
forming a pixel circuit film layer on the base substrate;
forming first via holes running through the base substrate and the pixel circuit film layer in the opening regions; and
filling each first via hole with an elastic material to form a deformable component;
wherein after each first via hole is filled with the elastic material to form the deformable component, the method further comprises:
forming a first protective layer covering the deformable component on a side, facing away from the base substrate, of the pixel circuit film layer; and
forming a second protective layer covering the deformable component on a side, facing away from the pixel circuit film layer, of the base substrate;

wherein before the first protective layer covering the deformable structure is formed on the side, facing away from the base substrate, of the pixel circuit film layer, the method further comprises:
forming a first electrode layer in contact with the deformable component on the side, facing away from the base substrate, of the pixel circuit film layer; and

before the second protective layer covering the deformable structure is formed on the side, facing away from the pixel circuit film layer, of the base substrate, the method further comprises:
forming a second electrode layer in contact with the deformable component on the side, facing away from the pixel circuit film layer, of the base substrate.

13. The method according to claim 12 , wherein filling each first via hole with the elastic material comprises:
injecting the elastic material to each first via hole through a pouring or spraying or knife-coating process.

14. A display apparatus, comprising a display panel, wherein the display panel comprises:
a base substrate; and
a pixel circuit film layer disposed on the base substrate;
wherein the display panel has a plurality of island regions, opening regions between the adjacent island regions, and bridge regions connecting adjacent island regions;
wherein
the base substrate and the pixel circuit film layer are provided in the plurality of island regions;
the opening regions each is provided with a first via hole, and the first via hole runs through the base substrate and the pixel circuit film layer;

wherein the display panel further comprises:
deformable components each filling the first via hole;
wherein each deformable component comprises an elastic material;

a first protective layer on a side, facing away from the base substrate, of the pixel circuit film layer; and
a second protective layer on a side, facing away from the pixel circuit film layer, of the base substrate;
wherein both the first protective layer and the second protective layer cover the deformable components;

a first electrode layer between the first protective layer and the deformable components; and
a second electrode layer between the second protective layer and the deformable components;
wherein in each opening region, an orthographic projection of the first electrode layer on the base substrate over

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wang Bingwei
• Cao Fangxu

Classifications

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K50/846

  comprising getter material or desiccants · CPC title

• H10K71/00

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