Array substrate and liquid crystal display panel

Patent metadata

Field	Value
Publication number	US-2023090555-A1
Application number	US-202117613039-A
Country	US
Kind code	A1
Filing date	Jan 29, 2021
Priority date	Jan 29, 2021
Publication date	Mar 23, 2023
Grant date	—

Abstract

The present disclosure provides an array substrate and a liquid crystal display panel, belonging to the file of display technology. The array substrate includes a base substrate, a first electrode, an insulating dielectric layer and a second electrode stacked in sequence; the second electrode is provided with at least one hollow hole, and the hollow hole is in a shape of convex polygon, circle or ellipse.

First claim

What is claimed is:

1 . An array substrate, comprising: a base substrate, a first electrode, an insulating dielectric layer and a second electrode stacked in sequence; wherein the second electrode is provided with at least one hollow hole, and the hollow hole is in a shape of convex polygon, circle or ellipse.

2 . The array substrate according to claim 1 , wherein the hollow hole is in a shape of a regular polygon or a circle.

3 . The array substrate according to claim 2 , wherein the hollow hole is in a shape of a circle, a diameter of the hollow hole is in a range of 10 μm to 14 μm.

4 . The array substrate according to claim 2 , wherein the hollow hole is in a shape of a square, a size of an edge of the hollow hole is in a range of 9 μm to 13 μm.

5 . The array substrate according to claim 1 , wherein the hollow hole comprises first hollow holes, and a distance between two adjacent first hollow holes is in a range of 2 μm to 4 μm.

6 . The array substrate according to claim 5 , wherein the first hollow holes are arranged into at least one hollow hole row, and the hollow hole row comprises a plurality of the first hollow holes successively adjacent and arranged linearly along a first direction; the first direction is parallel to a plane where the base substrate is located.

7 . The array substrate according to claim 6 , wherein the first hollow holes are arranged into at least one hollow hole column, and the hollow hole column comprises a plurality of the first hollow holes successively adjacent and arranged linearly along a second direction; the second directions is parallel to the plane where the base substrate is located and intersect with the first direction.

8 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 90° or 60°.

9 . The array substrate according to claim 7 , wherein the hollow hole is in a shape of a square; an included angle between an edge of the hollow hole and the first direction is in the range of 0° to 10°.

10 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 90°; the hollow hole is in a shape of a square; a length of an edge of the hollow hole is 11 μm, a distance between centers of two adjacent first hollow holes is 14 μm.

11 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 90°; the hollow hole is in a shape of a square; a length of an edge of the hollow hole is 9 μm, a distance between centers of two adjacent first hollow holes is 11 μm.

12 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 60°; the hollow hole is in a shape of a square; a length of an edge of the hollow hole is 10 μm, a distance between centers of two adjacent first hollow holes is 13 μm.

13 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 90°; the hollow hole is in a shape of a circle; a diameter of the hollow hole is 11 μm, a distance between centers of two adjacent first hollow holes is 14 μm.

14 . The array substrate according to claim 7 , wherein an included angle between the first direction and the second direction is 60°; the hollow hole is in a shape of a circle; a diameter of the hollow hole is 13 μm, a distance between centers of two adjacent first hollow holes is 16 μm.

15 . The array substrate according to claim 5 , wherein the hollow hole further comprises a second hollow hole, and the second hollow hole is disposed close to an outer edge of the second electrode; a distance between the second hollow hole and an adjacent first hollow hole is smaller than a distance between two adjacent first hollow holes.

16 . The array substrate according to claim 15 , wherein the first hollow holes are arranged into at least one hollow hole row and at least one hollow hole column; the hollow hole row comprises a plurality of first hollow holes that are successively adjacent and arranged linearly along a first direction; the hollow hole column comprises a plurality of first hollow holes that are successively adjacent and arranged linearly along a second direction; the first direction and the second direction are both parallel to a plane of the base substrate and intersect with each other;
any second hollow hole and the first hollow holes in the hollow hole row are arranged in a straight line along the first direction, or any second hollow hole and the first hollow holes in the hollow hole column are arranged in a straight line along the second direction.

17 . The array substrate according to claim 1 , wherein both the first electrode and the second electrode are transparent electrodes.

18 . A liquid crystal display panel, comprising:
an array substrate, the array substrate comprising: a base substrate, a first electrode, an insulating dielectric layer and a second electrode stacked in sequence; wherein the second electrode is provided with at least one hollow hole, and the hollow hole is in a shape of convex polygon, circle or ellipse; a color filter substrate disposed opposite to the array substrate to form a cell; a liquid crystal layer sandwiched between the array substrate and the color filter substrate.

19 . The liquid crystal display panel according to claim 18 , wherein liquid crystals in the liquid crystal layer are negative liquid crystals.

20 . The liquid crystal display panel according to claim 18 , wherein when no voltage is loaded between the first electrode and the second electrode, an included angle between a long axis of a liquid crystal molecule in the liquid crystal layer and a plane where the array substrate is located is in a range of 85° to 90°.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Hongpeng
• Liang Pengxia
• Fang Zheng
• Shi Ge
• Choi Hyunsic
• Sun Yanliu
• Han Jiahui
• Yang Song
• Liu Yujie

Classifications

• G02F1/134372

  for fringe field switching [FFS] where the common electrode is not patterned · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title

• G02F2201/122

  having a particular pattern · CPC title

• G02F1/133707 Primary

  Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes · CPC title