Display module, preparation method thereof, and display apparatus

Patent metadata

Field	Value
Publication number	US-11567352-B2
Application number	US-202117486802-A
Country	US
Kind code	B2
Filing date	Sep 27, 2021
Priority date	Jan 29, 2021
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

The present application discloses a display module, a preparation method thereof, and a display apparatus. In a non-display region of the display panel, the display panel and the optical adhesive have a first open pore and a second open pore penetrating through their thickness, respectively; and an orthographic projection of the first open pore falls in an orthographic projection of the second open pore on the cover plate. A light shading part in the light shading region has a third open pore surrounding the light transmitting region; and the light shading part includes a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate.

First claim

What is claimed is:

1. A display module, comprising: a display region, and at least one first non-display region in the display region, wherein the first non-display region comprises: a light transmitting region, and a light shading region between the display region and the light transmitting region;
the display module further comprises:
a display panel, provide with a first open pore penetrating through its thickness in the first non-display region;
a cover plate on a light emergent side of the display panel;
an optical adhesive between the cover plate and the display panel, provided with a second open pore penetrating through its thickness in the first non-display region, wherein an orthographic projection of the first open pore on the cover plate is located in an orthographic projection of the second open pore on the cover plate; and
a light shading part in the light shading region, wherein the light shading part is provided with a third open pore surrounding the light transmitting region and comprises a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate;
wherein the light shading part comprises:
an ink layer on one side of the cover plate facing the optical adhesive; and
a first photochromic material layer at least coated on one side of the display panel and the optical adhesive proximate to the light transmitting region;
wherein the ink layer is provided with an opening region, an orthographic projection of the opening region on the cover plate coincides with an orthographic projection of the light transmitting region on the cover plate, the orthographic projection of the opening region on the cover plate is located in the orthographic projection of the first open pore on the cover plate, and an edge of the orthographic projection of the second open pore on the cover plate is located in an edge, away from the light transmitting region, of an orthographic projection of the ink layer on the cover plate;
wherein the display panel further comprises:
a second photochromic material layer on one side of the ink layer facing the optical adhesive:
wherein the second photochromic material layer and the first photochromic material layer are of an integrated structure, and the second photochromic material layer covers the opening region and the ink layer in the second open pore; and
a part of the second photochromic material layer covering the opening region is in a transparent state, and a remaining part of the second photochromic material layer is in a light shading state.

2. A display apparatus, comprising: the display module according to claim 1 , and a photosensitive element;
wherein the photosensitive element is in a light transmitting region.

3. The display module according to claim 1 , further comprising:
an optical film between the optical adhesive and the display panel;
a backing film on one side of the display panel facing away from the light emergent side; and
a heat dissipating layer on one side of the backing film facing away from the display panel;
wherein in the first non-display region, the optical film is provided with a fourth open pore penetrating through its thickness, the backing film is provided with a fifth open pore penetrating through its thickness, and the heat dissipating layer is provided with a sixth open pore penetrating through its thickness; and
the orthographic projection of the first open pore on the cover plate coincides with an orthographic projection of the fifth open pore on the cover plate, and the orthographic projection of the second open pore on the cover plate is located in an orthographic projection of the sixth open pore on the cover plate.

4. A display module, comprising: a display region, and at least one first non-display region in the display region, wherein the first non-display region comprises: a light transmitting region, and a light shading region between the display region and the light transmitting region;
the display module further comprises:
a display panel, provide with a first open pore penetrating through its thickness in the first non-display region;
a cover plate on a light emergent side of the display panel;
an optical adhesive between the cover plate and the display panel, provided with a second open pore penetrating through its thickness in the first non-display region, wherein an orthographic projection of the first open pore on the cover plate is located in an orthographic projection of the second open pore on the cover plate; and
a light shading part in the light shading region, wherein the light shading part is provided with a third open pore surrounding the light transmitting region and comprises a photochromic material in a light shading state, and an orthographic projection of the light shading part on the cover plate at least covers a region, which does not overlap with the orthographic projection of the first open pore on the cover plate, of the orthographic projection of the second open pore on the cover plate;
wherein the light shading part comprises:
a part of the optical adhesive extending to the light shading region and doped with the photochromic material;
wherein the photochromic material doped in the optical adhesive in the light shading region is in a light shading state.

5. The display module according to claim 4 , wherein the optical adhesive is entirely doped with the photochromic material; and the photochromic material in a region outside the light shading region is in a transparent state.

6. The display module according to claim 4 , the optical adhesive is only doped with the photochromic material in the light shading region.

7. The display module according to claim 5 , further comprising:
an optical film between the optical adhesive and the display panel;
wherein the light shading part further comprises: a part of the optical film extending to the light shading region and doped with the photochromic material; and the photochromic material doped in the optical film in the light shading region is in a light shading state; and
an orthographic projection of the part of the optical film extending to the light shading region and doped with the photochromic material on the cover plate coincides with an orthographic projection of the part of the optical adhesive extending to the light shading region and doped with the photochromic material on the cover plate.

8. The display module according to claim 7 , wherein the optical film is entirely doped with the photochromic material; and the photochromic material in a region outside the light shading region is in a transparent state.

9. The display module according to claim 4 , wherein an orthographic projection of the third open pore on the cover plate coincides with the orthographic projection of the first open pore on the cover plate, and the orthographic projection of the first open pore on the cover plate coincides with an orthographic projection of the light transmitting region on the cover plate.

10. The display module according to claim 5 , wherein an orthographic projection of the third open pore on the cover plate coincides with the orthographic projection of the first open pore on the cover plate, and the orthographic projection of the first open pore on the cover plate coincides with an orthographic projection of the light transmitting region on the cover plate.

11. The display module according to claim 6 , wherein an orthographic projection of the third open pore on th

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Liao Chuandong
• Chen Liqiang
• Pang Mengyuan
• Wang Yaming
• Wang Yanxin
• Zhao Dongdong

Classifications

• G02F2202/04

  dye · CPC title

• G02F1/0126 Primary

  Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F1/133512 Primary

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/133331

  Cover glasses · CPC title