WO2020124785A1

WO2020124785A1 - Liquid crystal display panel and apparatus

Info

Publication number: WO2020124785A1
Application number: PCT/CN2019/076114
Authority: WO
Inventors: 刘子琪
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2018-12-18
Filing date: 2019-02-26
Publication date: 2020-06-25
Also published as: CN109407424B; CN109407424A

Abstract

Provided in the present invention are a liquid crystal display panel and apparatus. The liquid crystal display panel comprises: a pixel electrode, comprising: a main body part; and a peripheral part, arranged outside the main body part, wherein the peripheral part comprises a first peripheral part in a first direction and a second peripheral part in a second direction; the first direction intersects with the second direction; the first peripheral part and the second peripheral part are arranged at intervals; and the first peripheral part and the second peripheral part are not connected electrically.

Description

Liquid crystal display panel and device

Technical field

The invention relates to the field of display technology, in particular to a liquid crystal display panel and device.

Background technique

Due to the large difference in birefringence of liquid crystal molecules in the existing display panel under different viewing angles, the color shift phenomenon is more serious. In terms of physical structure, in order to form an angle of 45° between the liquid crystal molecules and the polarizing axes of the upper and lower orthogonal polarizers, the structure of the pixel electrode in each pixel is generally set to a "meter" shape, thereby forming four domains. The existing pixel electrode structure shown in FIG. 1 includes a peripheral edge portion 10 and a main body portion 20 that surrounds the outside of the main body portion 20. The peripheral edge portion 10 includes a horizontal peripheral edge portion 11 and a vertical peripheral edge portion 12, The peripheral portion 10 is shaped like a mouth. The main body portion 20 includes a horizontal trunk electrode 21, a vertical trunk electrode 22, and a branch electrode 23.

technical problem

However, this pixel structure makes the central area of the pixel produce a strong force at a certain angle (such as 45°). The forces of the four apex angles simultaneously push toward the center, resulting in the formation of distorted dark lines in the center of the pixel, thereby reducing the display effect. .

Technical solution

An object of the present invention is to provide a liquid crystal display panel and device, which can improve the display effect.

To solve the above technical problems, the present invention provides a liquid crystal display panel, which includes:

The pixel electrode includes:

A body portion including a first trunk electrode in the first direction and a second trunk electrode in the second direction; and

A peripheral edge portion is provided outside the main body portion, the peripheral edge portion includes a first peripheral edge portion in a first direction and a second peripheral edge portion in a second direction, the first direction and the second Intersecting directions, the first peripheral edge portion and the second peripheral edge portion are spaced apart, and the first peripheral edge portion and the second peripheral edge portion are not electrically connected; wherein the first peripheral edge portion is There are at least two gaps between the second peripheral edge portion, the first peripheral edge portion is spaced apart from the second stem electrode and the second peripheral edge portion is spaced apart from the first stem electrode.

The invention provides a liquid crystal display panel, which comprises:

The pixel electrode includes:

Main body; and

A peripheral edge portion is provided outside the main body portion, the peripheral edge portion includes a first peripheral edge portion in a first direction and a second peripheral edge portion in a second direction, the first direction and the second The directions intersect, the first peripheral edge portion and the second peripheral edge portion are spaced apart, and the first peripheral edge portion and the second peripheral edge portion are not electrically connected.

The present invention also provides a liquid crystal display device, which includes any one of the above liquid crystal display panels.

Beneficial effect

In the liquid crystal display panel and device of the present invention, by arranging the first peripheral portion and the second peripheral portion at intervals, the central area of the pixel is prevented from being subjected to horizontal and vertical forces to generate strong forces, so as to prevent the formation of distorted dark Grain, which in turn improves the display effect.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of the structure of an existing pixel electrode;

2 is a schematic diagram of a first structure of a pixel electrode according to Embodiment 1 of the present invention;

3 is a schematic diagram of a second structure of a pixel electrode according to Embodiment 1 of the present invention;

4 is a first schematic structural diagram of a pixel electrode according to Embodiment 2 of the present invention;

5 is a second schematic structural diagram of a pixel electrode according to Embodiment 2 of the present invention.

Embodiments of the invention

The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention that can be implemented. Directional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", "inner", "outer", "side", etc., are for reference only Attach the direction of the schema. Therefore, the directional terminology is used to illustrate and understand the present invention, not to limit the present invention. In the figure, units with similar structures are indicated by the same reference numerals.

Please refer to FIGS. 2 to 3. FIG. 2 is a schematic structural diagram of a pixel electrode according to Embodiment 1 of the present invention.

As shown in FIG. 2, the liquid crystal display panel of the present invention includes a pixel electrode. The pixel electrode includes a body portion 20 and a peripheral portion 30, wherein the body portion 20 includes a first trunk electrode 21, a second trunk electrode 22, and a plurality of branch electrodes 23 . For example, the first trunk electrode 21 is a horizontal trunk electrode, and the second trunk electrode 22 is a vertical trunk electrode 22. A slit 24 is provided between two adjacent branch electrodes 23, and the slit 24 is generated by the gap between the two adjacent branch electrodes 23.

The peripheral edge portion 30 is provided outside the main body portion 20; the peripheral edge portion 30 includes a first peripheral edge portion 31 in the first direction and a second peripheral edge portion 32 in the second direction, the first The direction intersects the second direction. In one embodiment, the first direction is a horizontal direction and the second direction is a vertical direction. The first peripheral edge portion 31 is, for example, a horizontal peripheral edge portion, and the second peripheral edge portion 32 is, for example, a vertical peripheral edge portion. The first peripheral edge portion 31 and the second peripheral edge portion 32 are spaced apart, and the first peripheral edge portion 31 and the second peripheral edge portion 32 are not electrically connected. It can be understood that the number of the first peripheral edge portion 31 and the second peripheral edge portion 32 is at least one.

The branch electrode 23 is provided between the second peripheral portion 32 and the first trunk electrode 21 or the first peripheral portion 31 and the second trunk electrode 22.

In one embodiment, in order to avoid affecting the opening ratio at the diagonal, there are at least two gaps between the first peripheral edge portion 31 and the second peripheral edge portion 32. In other words, there are two gaps between each of the first peripheral edge portion 31 and the second peripheral edge portion 32. That is, there are two gaps in each diagonal of the pixel electrode. For example, there is at least two gaps between one end of the first peripheral edge 31 and the adjacent end of the second peripheral edge 32, the adjacent end is the end of the second peripheral edge 32 The end portion adjacent to the one end portion of the first peripheral edge portion 31 in FIG. Specifically, there are two gaps 301 between the left end portion of the first peripheral edge portion 31 above and the upper end portion of the second peripheral edge portion 32 on the left side. Of course, it can be understood that there may be more than two gaps between the right end of the first peripheral edge 31 and the upper end of the second peripheral edge 32 on the right. The structure of the remaining diagonal positions is similar to this.

Wherein the overlapping branch electrode 231 corresponds to the position where the extension line of the first peripheral edge portion 31 and the extension line of the second peripheral edge portion 32 overlap. That is, the overlapping branch electrodes 231 are branch electrodes 23 located on four diagonal corners.

When there is two gaps between one end portion of the first peripheral edge portion 31 and the adjacent end portion of the second peripheral edge portion 32; between the first peripheral edge portion 31 and the second peripheral edge portion 32 The two gaps 301 between them respectively correspond to the positions of one side of the slits 24 on the two sides of the corresponding overlapping branch electrode 231. That is, each gap 301 corresponds to a slit on one side.

In another embodiment, in order to simplify the manufacturing process and reduce production costs, as shown in FIG. 3, the gap 301 between the first peripheral edge portion 31 and the second peripheral edge portion 32 is located on the first peripheral edge The intersection between the extension line of the portion 31 and the extension line of the second peripheral edge portion 32. That is, at this time, there is a gap between each of the first peripheral edge portions 31 and each of the second peripheral edge portions 32. In other words, there is a gap in each diagonal of the pixel electrode.

Since the first peripheral portion and the second peripheral portion are spaced apart, the central area of the pixel is simultaneously affected by the forces in two directions (horizontal and vertical), that is, to avoid a strong effect on the central area of the pixel Force, thereby preventing the formation of distorted dark lines in the central area, thereby improving the display effect.

Please refer to FIGS. 4 to 5. FIG. 4 is a schematic structural diagram of a pixel electrode according to a second embodiment of the present invention.

In this embodiment, based on the previous embodiment, the trunk portion and the peripheral edge portion are also spaced apart, that is, there is also a gap between the trunk portion and the peripheral edge portion.

As shown in FIG. 4, in this embodiment, the body portion 20 includes a first stem electrode 27 and a second stem electrode 28. In an embodiment, the first peripheral portion 31 and the second stem The electrodes 28 are spaced apart and/or the second peripheral portion 32 is spaced apart from the first stem electrode 27.

In another embodiment, the first peripheral portion 31 is spaced apart from the second stem electrode 28 and the second peripheral portion 32 is spaced apart from the first stem electrode 27.

The gap between the first peripheral portion 31 and the second trunk electrode 28 covers the overlap between the extension line of the first peripheral portion 31 and the extension line of the second trunk electrode 28 . That is, the width of the gap between the first peripheral portion 31 and the second trunk electrode 28 is greater than or equal to one of the extension of the first peripheral portion 31 and the extension of the second trunk electrode 28 The width of the intersection between the extension line of the first peripheral edge portion 31 and the extension line of the second trunk electrode 28 is equal to the width of the second trunk electrode 28 or the first The larger of the width of the peripheral edge portion 31. When the width of the second trunk electrode 28 and the first peripheral edge portion 31 are equal, the width at the overlap is equal to the width of the second trunk electrode 28.

As shown in FIG. 5, the gap between the first peripheral edge portion 31 and the second stem electrode 28 includes a first gap portion 302 and two second gap portions 303. The position corresponds to the position of the intersection between the extension line of the first peripheral edge portion 31 and the extension line of the second trunk electrode 28, the second gap portion 303 and the adjacent branch electrode 232 The position of one of the side slits 24 corresponds to the intersection between the adjacent branch electrode 232 and the extension line of the first peripheral edge portion 31 and the extension line of the second trunk electrode 28 The overlap is adjacent. The adjacent branch electrode 232 is a branch electrode adjacent to an intersection between the extension line of the first peripheral portion 31 and the extension line of the second trunk electrode 28.

Of course, the gap between the first peripheral edge portion 31 and the second trunk electrode 28 may include a second gap portion 303, and the second gap portion 303 is narrower on the side of the adjacent branch electrode 232 The positions of the slits 24 correspond to each other. The gap between the first peripheral edge portion 31 and the second trunk electrode 28 may include two or more second gap portions.

It can be understood that the gap 302 between the second peripheral portion 32 and the first stem electrode 27 also covers the overlap between the second peripheral portion 32 and the first stem electrode 27. The gap 302 between the second peripheral portion 32 and the first stem electrode 27 is set in the same manner as the gap between the first peripheral edge 31 and the second stem electrode 28 For details, please refer to the above, which will not be repeated here.

Since the first peripheral portion is spaced apart from the second main electrode or the second peripheral portion is spaced apart from the first main electrode, the central area of the pixel is further reduced from the influence of the horizontal and vertical forces, It is better to avoid generating a strong force on the central area of the pixel, thereby further preventing the central area from forming distorted dark lines, thereby further improving the display effect.

The present invention also provides a liquid crystal display device, which includes the above-mentioned liquid crystal display panel, and may further include a backlight module.

In the liquid crystal display panel and device of the present invention, by arranging the first peripheral portion and the second peripheral portion at intervals, the central area of the pixel is prevented from being subjected to horizontal and vertical forces to generate strong forces, thereby preventing the formation of distorted dark Grain, which in turn improves the display effect.

In summary, although the present invention has been disclosed as the above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various changes without departing from the spirit and scope of the present invention. Such changes and retouching, therefore, the protection scope of the present invention is subject to the scope defined by the claims.

Claims

A liquid crystal display panel, including:

The pixel electrode includes:

A body portion including a first trunk electrode in the first direction and a second trunk electrode in the second direction; and

A peripheral edge portion is provided outside the main body portion, the peripheral edge portion includes a first peripheral edge portion in a first direction and a second peripheral edge portion in a second direction, the first direction and the second Intersecting directions, the first peripheral edge portion and the second peripheral edge portion are spaced apart, and the first peripheral edge portion and the second peripheral edge portion are not electrically connected; wherein the first peripheral edge portion is There are at least two gaps between the second peripheral edge portion, the first peripheral edge portion is spaced apart from the second stem electrode and the second peripheral edge portion is spaced apart from the first stem electrode.
The liquid crystal display panel according to claim 1, wherein the main body portion includes a plurality of branch electrodes, and a slit is provided between two adjacent branch electrodes;

The two gaps between the first peripheral edge portion and the second peripheral edge portion respectively correspond to the position of one side slit among the slits on both sides of the overlapping branch electrode, and the overlapping branch electrode is The intersection between the extension line of the first peripheral edge portion and the extension line of the second peripheral edge portion.
The liquid crystal display panel according to claim 1, wherein a gap between the first peripheral edge portion and the second peripheral edge portion is located at an extension line of the first peripheral edge portion and an extension of the second peripheral edge portion The intersection between the lines.
The liquid crystal display panel according to claim 1, wherein a gap between the first peripheral edge portion and the second trunk electrode covers an extension line of the first peripheral edge portion and an extension of the second trunk electrode The intersection between the lines.
The liquid crystal display panel according to claim 4, wherein the gap between the first peripheral edge portion and the second stem electrode includes a first gap portion and at least one second gap portion, the first gap portion The position corresponds to the position of the overlap between the first peripheral edge portion and the second trunk electrode, and the second gap portion corresponds to the position of the slit on the side of the adjacent branch electrode. The adjacent branch electrode is adjacent to the intersection between the extension line of the first peripheral edge portion and the extension line of the second trunk electrode.
The liquid crystal display panel according to claim 4, wherein the gap between the first peripheral edge portion and the second trunk electrode and the extension line of the first peripheral edge portion and the extension of the second trunk electrode The position of the intersection between the lines corresponds.
The liquid crystal display panel according to claim 1, wherein the gap between the second peripheral edge portion and the first trunk electrode covers one of the extension line of the second peripheral edge portion and the extension line of the first trunk electrode The overlap between.
A liquid crystal display panel, including:

The pixel electrode includes:

Main body; and

A peripheral edge portion is provided outside the main body portion, the peripheral edge portion includes a first peripheral edge portion in a first direction and a second peripheral edge portion in a second direction, the first direction and the second The directions intersect, the first peripheral edge portion and the second peripheral edge portion are spaced apart, and the first peripheral edge portion and the second peripheral edge portion are not electrically connected.
The liquid crystal display panel according to claim 8, wherein there are at least two gaps between the first peripheral edge portion and the second peripheral edge portion.
The liquid crystal display panel according to claim 9, wherein the main body portion includes a plurality of branch electrodes, and a slit is provided between two adjacent branch electrodes;

The two gaps between the first peripheral edge portion and the second peripheral edge portion respectively correspond to the position of one side slit among the slits on both sides of the overlapping branch electrode, and the overlapping branch electrode is The intersection between the extension line of the first peripheral edge portion and the extension line of the second peripheral edge portion.
The liquid crystal display panel according to claim 8, wherein a gap between the first peripheral edge portion and the second peripheral edge portion is located at an extension line of the first peripheral edge portion and an extension of the second peripheral edge portion The intersection between the lines.
The liquid crystal display panel according to claim 8, wherein

The body portion includes a first stem electrode in the first direction and a second stem electrode in the second direction, and the first peripheral portion is spaced apart from the second stem electrode or the The second peripheral portion is spaced apart from the first stem electrode.
The liquid crystal display panel of claim 12, wherein a gap between the first peripheral edge portion and the second trunk electrode covers the extension line of the first peripheral edge portion and the extension of the second trunk electrode The intersection between the lines.
The liquid crystal display panel according to claim 13, wherein the gap between the first peripheral portion and the second stem electrode includes a first gap portion and at least one second gap portion, the first gap portion The position corresponds to the position of the overlap between the first peripheral edge portion and the second trunk electrode, the second gap portion corresponds to the position of the slit on the side of the adjacent branch electrode, the The adjacent branch electrode is adjacent to the intersection between the extension line of the first peripheral edge portion and the extension line of the second trunk electrode.
The liquid crystal display panel according to claim 13, wherein the gap between the first peripheral edge portion and the second trunk electrode and the extension line of the first peripheral edge portion and the extension of the second trunk electrode The position of the intersection between the lines corresponds.
The liquid crystal display panel of claim 12, wherein a gap between the second peripheral edge portion and the first trunk electrode covers one of the extension line of the second peripheral edge portion and the extension line of the first trunk electrode The overlap between.
The liquid crystal display panel according to claim 8, wherein

The main body portion includes a first stem electrode in the first direction and a second stem electrode in the second direction, and the first peripheral portion is spaced apart from the second stem electrode and the The second peripheral portion is spaced apart from the first stem electrode.
A liquid crystal display device includes a liquid crystal display panel, which includes:

The pixel electrode includes:

Main body; and

A peripheral edge portion is provided outside the main body portion, the peripheral edge portion includes a first peripheral edge portion in a first direction and a second peripheral edge portion in a second direction, the first direction and the second The directions intersect, the first peripheral edge portion and the second peripheral edge portion are spaced apart, and the first peripheral edge portion and the second peripheral edge portion are not electrically connected.
The liquid crystal display device according to claim 18, wherein there are at least two gaps between the first peripheral edge portion and the second peripheral edge portion.
The liquid crystal display device according to claim 19, wherein the main body portion includes a plurality of branch electrodes, and a slit is provided between two adjacent branch electrodes;

The two gaps between the first peripheral edge portion and the second peripheral edge portion respectively correspond to the position of one side slit among the slits on both sides of the overlapping branch electrode, and the overlapping branch electrode is The intersection between the extension line of the first peripheral edge portion and the extension line of the second peripheral edge portion.