Display substrate, liquid crystal display panel, and display device

Patent metadata

Field	Value
Publication number	US-11573446-B2
Application number	US-202117530065-A
Country	US
Kind code	B2
Filing date	Nov 18, 2021
Priority date	Mar 12, 2021
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

Disclose are a display substrate, a liquid crystal display panel and a display device. The display substrate is provided with a display region. The display substrate includes: a base substrate, and a black matrix arranged on a side of the base substrate. The black matrix includes: a first region corresponding to the display region, and a plurality of frame regions arranged on a periphery of the first region. At least one rectilinear first slit and at least one rectilinear second slit intersecting with the at least one rectilinear first slit are arranged in the at least one of the frame regions, and an extending direction of the at least one rectilinear first slit is same as an extending direction of the at least one of the frame regions.

First claim

What is claimed is:

1. A display substrate, providing with a display region, and comprising:
a base substrate; and
a black matrix arranged on a side of the base substrate;
wherein the black matrix comprises:
a first region corresponding to the display region; and
a plurality of frame regions arranged on a periphery of the first region;
wherein at least one rectilinear first slit with an extending direction same as an extending direction of at least one of the frame regions and at least one rectilinear second slit intersecting with the at least one rectilinear first slit are arranged in the at least one of the frame regions;
the plurality of frame regions comprise a first frame region coated by a coating material; and frame regions, other than the first frame region, in the plurality of frame regions each is provided with the at least one rectilinear first slit and the at least one rectilinear second slit;
a quantity of the at least one rectilinear first slit is smaller than a quantity of the at least one rectilinear second slit;
frame regions, other than the first frame region, in the plurality of frame regions each is provided with one or two rectilinear first slits; and the one or each of the two rectilinear first slits penetrates through two opposite edges of the black matrix.

2. The display substrate according to claim 1 , wherein an end, facing the first region, of each rectilinear second slit is in contact with a rectilinear first slit, close to the first region, in the two rectilinear first slits.

3. The display substrate according to claim 1 , wherein a plurality of pixel openings are arranged in the first region; and
the quantity of the at least one rectilinear second slit arranged in frame regions, other than the first frame region, in the plurality of frame regions is equal to a quantity of rows of the pixel openings; or the quantity of the at least one rectilinear second slit arranged in frame regions, other than the first frame region, in the plurality of frame regions is equal to a quantity of columns of the pixel openings.

4. The display substrate according to claim 3 , wherein the at least one rectilinear first slit of two frame regions connected with each other intersect at a junction region between the two frame regions.

5. The display substrate according to claim 1 , wherein a rectilinear first slit, farthest from the first region, in the at least one rectilinear first slit in each of the frame regions is set as a first frame slit, and a spacing between the first frame slit and an edge of the base substrate ranges from 80 μm to 120 μm.

6. The display substrate according to claim 5 , wherein in a same frame region, a spacing between two adjacent rectilinear first slits ranges from 80 μm to 120 μm.

7. The display substrate according to claim 1 , wherein a width of each of the at least one rectilinear first slit perpendicular to an extending direction of the each rectilinear first slit ranges from 8 μm to 12 μm; and a width of each of the at least one rectilinear second slit perpendicular to an extending direction of the each rectilinear second slit ranges from 8 μm to 12 μm.

8. A liquid crystal display panel, comprising the display substrate according to claim 1 .

9. A display device, comprising the liquid crystal display panel according to claim 8 .

10. The display device according to claim 9 , wherein the plurality of frame regions comprise a first frame region; and
the display device further comprises: a coating material, coating the first frame region of the black matrix.

Assignees

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

Inventors

• Cheng Min
• Dai Ke
• Yang Haipeng
• Zhou Maoxiu
• Jiang Xiaoting
• Zhang Chunxu

Classifications

• G02F1/133512 Primary

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

• G02F1/133388

  with constructional differences between the display region and the peripheral region · CPC title

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title