Liquid crystal display panel, and liquid crystal display device

Patent metadata

Field	Value
Publication number	US-12013615-B2
Application number	US-202318456522-A
Country	US
Kind code	B2
Filing date	Aug 28, 2023
Priority date	Jan 4, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A liquid crystal display panel includes an array substrate and an opposite substrate that are disposed opposite to each other; the liquid crystal display panel has a display region and at least one non-display region disposed beside the display region. The array substrate is of a multi-layer structure and includes a pixel electrode layer and a plurality of protrusions disposed in the at least one non-display region, and the opposite substrate includes a common electrode layer. A protrusion has a structure including at least one film, and a film of the at least one film is located in a layer included in the array substrate.

First claim

What is claimed is:

1. A liquid crystal display panel having a display region and at least one non-display region disposed beside the display region, comprising: an array substrate and an opposite substrate that are disposed opposite to each other, and a sealant disposed between the array substrate and the opposite substrate and in the at least one non-display region; wherein
the array substrate is of a multi-layer structure and includes a pixel electrode layer and a plurality of protrusions disposed in the at least one non-display region and disposed at a side of the sealant proximate to the display region;
the opposite substrate includes a common electrode layer and a first black matrix pattern that is disposed in the at least one non-display region; at least one part of the first black matrix pattern has a plurality of grooves; each protrusion of the plurality of protrusions is corresponding to a groove of the plurality of grooves, and the protrusion is matched with the corresponding groove; and
the protrusion has a structure including at least one film, and a film of the at least one film is located in a layer included in the array substrate.

2. The liquid crystal display panel according to claim 1 , wherein the at least one non-display region surrounds the display region, and the plurality of grooves are located in parts of the first black matrix pattern corresponding to two adjacent or opposite edges of the liquid crystal display panel, or located in all parts of the first black matrix pattern.

3. The liquid crystal display panel according to claim 1 , wherein the at least one non-display region includes a plurality of non-display regions; wherein
the plurality of non-display regions are located at two adjacent or opposite sides of the display region, and the plurality of grooves are located in all parts of the first black matrix pattern; or
the plurality of non-display regions surround a part of the display region, the plurality of grooves are located in parts of the first black matrix pattern corresponding to two adjacent edges of the liquid crystal display panel.

4. The liquid crystal display panel according to claim 1 , wherein in the plurality of grooves, grooves in a part of the first black matrix pattern corresponding to an edge of the liquid crystal display panel are arranged in at least one row.

5. The liquid crystal display panel according to claim 4 , wherein the grooves in the part of the first black matrix pattern are arranged in two or more rows, and protrusions in different rows are aligned with each other or arranged in a staggered manner.

6. The liquid crystal display panel according to claim 1 , wherein a minimum distance between the protrusion and a boundary of the display region closest to the protrusion is greater than or equal to 5 μm.

7. The liquid crystal display panel according to claim 1 , wherein the plurality of protrusions are disposed in the at least one non-display region corresponding to one edge or more edges of the liquid crystal display panel.

8. The liquid crystal display panel according to claim 1 , wherein in the plurality of protrusions, shapes of protrusions in a non-display region corresponding to a same edge of the liquid crystal display panel are not completely the same; and/or
shapes of protrusions in non-display regions corresponding to different edges of the liquid crystal display panel are not completely the same.

9. The liquid crystal display panel according to claim 1 , wherein in the plurality of protrusions, protrusions in a non-display region corresponding to an edge of the liquid crystal display panel are arranged in at least one row; and
protrusions in each row of the at least one row are sequentially arranged in an extending direction of the edge of the liquid crystal display panel corresponding to the non-display region in which the protrusions are disposed.

10. The liquid crystal display panel according to claim 1 , wherein a shape of the protrusion includes at least one of a cylindrical, a frustum of a cone, a prism or a frustum of a pyramid.

11. The liquid crystal display panel according to claim 1 , wherein the film of the at least one film is located in the pixel electrode layer.

12. The liquid crystal display panel according to claim 1 , wherein the array substrate further includes a pixel circuit structure disposed on a side of the pixel electrode layer away from the opposite substrate, the pixel circuit structure includes a gate electrode layer, a gate insulating layer, an active layer and a source-drain electrode layer; and
the film of the at least one film is located in a layer of the pixel circuit structure.

13. The liquid crystal display panel according to claim 1 , wherein the array substrate further includes a pixel circuit structure disposed on a side of the pixel electrode layer away from the opposite substrate, the pixel circuit structure includes a gate electrode layer, a gate insulating layer, an active layer and a source-drain electrode layer; and
the protrusion has a structure including two films, and a layer of the two films is located in the active layer, and another layer of the two films is located in the pixel electrode layer.

14. The liquid crystal display panel according to claim 1 , wherein the array substrate further includes a color filter layer disposed at a side of the pixel electrode layer proximate to or away from the opposite substrate, the color filter layer includes color filter portions of at least two colors; and
the film of the at least one film is located in a color filter portion of a color among the color filter portions of at least two colors.

15. The liquid crystal display panel according to claim 14 , wherein the color filter portions of at least two colors includes at least a color filter portion of red color, and the film of the at least one film is located in the color filter portion of red color.

16. The liquid crystal display panel according to claim 14 , wherein a dimension of the protrusion in a direction from the array substrate to the opposite substrate is less than or equal to a dimension of the color filter layer in the direction from the array substrate to the opposite substrate.

17. The liquid crystal display panel according to claim 1 , wherein a shape of an end face of the protrusion proximate to the corresponding groove is the same as a shape of an opening of the corresponding groove proximate to the protrusion, and an area of the end face of the protrusion proximate to the corresponding groove is equal to or slightly greater than or slightly less than an area of the opening of the corresponding groove proximate to the protrusion.

18. The liquid crystal display panel according to claim 1 , wherein the array substrate further includes an over coat layer disposed on a side of the pixel electrode layer proximate to the opposite substrate; and
the film of the at least one film is located in the over coat layer.

19. The liquid crystal display panel according to claim 1 , wherein the opposite substrate further includes a second base substrate and a color filter layer disposed on a side of the second base substrate proximate to the array substrate, and the color filter layer includes color filter portions of at least two colors; and
the plurality of grooves are located in a color filter portion of a color among the color filter portions of at least two colors.

20. A liquid crystal display device, comprising:
the liquid crystal display panel according to claim 1 ; and
a backlight module config

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Hui
• Wu Xinyin
• Qiao Yong
• Xian Jianbo

Classifications

• G02F1/136209

  Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/133512 Primary

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

• G02F1/136222

  Colour filters incorporated in the active matrix substrate · CPC title

• G02F1/13396

  Spacers having different sizes · CPC title