WO2016161970A1

WO2016161970A1 - Liquid crystal display

Info

Publication number: WO2016161970A1
Application number: PCT/CN2016/078834
Authority: WO
Inventors: 韩喆; 任立海; 余远辉; 蔡楚珊; 李超; 徐长远
Original assignee: 深圳晶华显示器材有限公司
Priority date: 2015-04-08
Filing date: 2016-04-08
Publication date: 2016-10-13
Also published as: CN104730751A

Abstract

Disclosed is a liquid crystal display, comprising an upper glass (2), a lower glass (8), an upper ITO (4), a lower ITO (10), an upper PI (3), a lower PI (9), an upper polaroid (1), a lower polaroid (7), a supporting body (6) and a liquid crystal body (5). The upper glass (2) is arranged above the lower glass (8). The supporting body (6) is arranged at both sides between the upper glass (2) and the lower glass (8). The liquid crystal body (5) is sealed between the upper glass (2) and the lower glass (8). The lower PI (9) is arranged on the lower glass (8). The lower ITO (10) is arranged on the lower PI (9). The upper ITO (4) is arranged below the upper glass (2). The upper PI (3) is arranged below the upper ITO (4). The upper polaroid (1) is arranged on the upper glass (2). The lower polaroid (7) is arranged below the lower glass (8). Each corresponding pixel point on the lower ITO (10) is provided with a plurality of trenches (201, 202), or each corresponding pixel point on the upper ITO (4) is provided with a plurality of trenches (201, 202). The liquid crystal display has a wide viewing angle, and has no blind angle at the opposing sides of the main viewing angle, so viewing from any angle can be achieved. In addition, the liquid crystal display has a simple production process, is low cost, and has low power consumption.

Description

LCD Monitor

Technical field

The present invention relates to the field of liquid crystal display technologies, and in particular, to a wide viewing angle liquid crystal display technology, and in particular to a liquid crystal display.

Background technique

With the development of technology, liquid crystal display is more and more widely used in people's lives. With the development of liquid crystal display technology, there are more and more types of liquid crystal displays. In some home appliances and industrial control products, the angle of view is relatively wide, but now Some LCD monitors have a narrow viewing angle and cannot meet the requirements. In addition, the opposite side of the main viewing angle of the conventional liquid crystal display has a dead angle.

Summary of the invention

In order to solve the above problems in the prior art, embodiments of the present invention provide a liquid crystal display.

According to an aspect of an embodiment of the invention, a liquid crystal display is disclosed, the liquid crystal display comprising: upper glass, lower glass, upper ITO, lower ITO, upper PI, lower PI, upper polarizer, lower polarizer, support And a liquid crystal body; the upper glass is disposed above the lower glass, the support body is disposed on both sides between the upper glass and the lower glass; and the liquid crystal body is sealed between the upper glass and the lower glass; The ITO is disposed on the lower glass, the lower PI is disposed on the lower ITO; the upper ITO is disposed under the upper glass, and the upper PI is disposed under the upper ITO; An upper polarizer is disposed on the upper glass, and a lower polarizer is disposed under the lower glass; wherein each of the corresponding pixels on the lower ITO is provided with a plurality of trenches or the upper ITO A plurality of grooves are disposed in each corresponding pixel point.

In one embodiment, the plurality of trenches are evenly distributed over the lower ITO.

In one embodiment, the plurality of trenches include: a plurality of rows and a plurality of columns of trenches, and the row trenches are staggered with the column trenches.

In one embodiment, the row trenches are parallel to one side of the liquid crystal display.

In one embodiment, the row of trenches is at an angle of 45 degrees to one edge of the liquid crystal display.

In one embodiment, the row trenches are perpendicular to one side of the liquid crystal display.

In one embodiment, the row trenches are at an angle of from 0 to 180 degrees from one side of the liquid crystal display.

In one embodiment, the plurality of trenches include: a plurality of sets of trenches arranged in a first direction and a plurality of sets of trenches arranged in a second direction, and the trenches arranged in the first direction are aligned with the second direction The grooves are staggered with each other.

In an embodiment, the angle between the first direction and the second direction is an arbitrary angle.

In one embodiment, the angle between the first direction and the second direction and one side of the liquid crystal display is an arbitrary angle.

The technical solution provided by the embodiment of the present application may include the following beneficial effects: the liquid crystal display of the present invention has a wide viewing angle, and the opposite sides of the main viewing angle have no dead angle, and can be viewed at any angle. In addition, the liquid crystal display of the present invention has a simple production process, low cost, and low power consumption.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a cross-sectional view showing a liquid crystal display according to an embodiment of the present invention;

2 is a schematic view showing a groove distribution in an ITO of a liquid crystal display according to an embodiment of the present invention;

3A and 3B are schematic diagrams showing the working principle of a liquid crystal display according to an embodiment of the present invention;

4A and FIG. 4B are schematic diagrams showing the arrangement of liquid crystals 5 in a liquid crystal display according to an embodiment of the present invention;

FIG. 5 is a schematic view showing a groove distribution in an ITO of a liquid crystal display according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 , an embodiment of the present invention provides a liquid crystal display including: upper glass 2, lower glass 8, upper ITO (indium tin oxide) 4, lower ITO 10, upper PI (polyacetamide) 3) Lower PI9, support 6 and liquid crystal 5.

The upper glass 2 is disposed above the lower glass 8, and the support body 6 is disposed on both sides between the upper glass 2 and the lower glass 8, and the upper glass 2 and the lower glass 8 are bonded together by the support 6. A sealed space is partitioned between the upper glass 2 and the lower glass 8, and the sealed space is sealed with the liquid crystal body 5. Also, in the sealed space, the lower ITO 10 is disposed on the lower glass 8, the lower PI 9 is disposed on the lower ITO 10; the upper ITO 4 is disposed under the upper glass 2, and the upper PI 3 is disposed under the upper ITO 4.

As shown in FIG. 1, the liquid crystal display further includes an upper polarizer 1 and a lower polarizer 7, the upper polarizer 1 is disposed above the upper glass 8, and the lower polarizer 7 is disposed under the lower glass 8.

In order to solve the problem that the flying liquid crystal display has a narrow viewing angle and the opposite side of the main viewing angle has a dead angle in the prior art, a plurality of trenches are disposed in each pixel corresponding to the lower ITO 10, or each corresponding to the upper ITO4 A plurality of trenches are provided in each of the pixel points, and only a case where a plurality of trenches are provided in each of the corresponding pixel points on the lower ITO 10 is shown in FIG. For the case where a plurality of trenches are provided in each of the corresponding pixel points on the upper ITO4, the other components in the liquid crystal display are completely the same as in FIG. 1, the only difference being that in each pixel corresponding to the upper ITO4 A plurality of trenches are provided, and no trench is provided in each pixel corresponding to the lower ITO 10, and details are not described herein.

In one embodiment, the plurality of trenches of the lower ITO 10 are evenly distributed over the lower ITO 10. Uniform distribution means that the arrangement between the multiple grooves is not disorganized, but is arranged regularly in a specific way. The present application is not limited to a uniform arrangement, for example, a plurality of grooves may be arranged arbitrarily.

For uniform distribution, the embodiments of the present application may have various arrangements, which are respectively described below.

In one embodiment, as shown in FIG. 2, the plurality of trenches include a plurality of rows of trenches 201 and a plurality of columns of trenches 202, and the row of trenches 201 and the column of trenches 202 are perpendicular to each other. The row trenches 201 are interleaved with the column trenches 202, and the row trenches 201 and the column trenches 202 are not connected.

The liquid crystal display includes a plurality of pixel points. For convenience of description, FIG. 2 only shows the row groove and the column groove in the four pixel points, each pixel point is a rectangle, and the four sides of the rectangle are respectively The four sides of the LCD display are parallel. The angle between the direction of the row trench 201 and the side of the liquid crystal display may be any angle from 0 degrees to 180 degrees.

Preferably, the row of trenches 201 of FIG. 2 is parallel to one side of the liquid crystal display, and the column trenches 202 are perpendicular to the side of the liquid crystal display.

Preferably, the groove 201 of FIG. 2 has an angle of 45 degrees with one side of the liquid crystal display, and the angle between the column groove 202 and the side of the liquid crystal display is 145 degrees.

Preferably, the row of trenches 201 of FIG. 2 is perpendicular to one side of the liquid crystal display, and the column trenches 202 are parallel to the side of the liquid crystal display.

The liquid crystal display shown in FIG. 1 is a schematic cross-sectional view of a liquid crystal display according to an embodiment of the present invention. A cross-sectional view of the liquid crystal display shown in FIG. 1 can be obtained by making a cut surface along the A-A direction shown in FIG. As shown in FIG. 1, there is an opening 11 between the adjacent lower ITOs 10, which is the row trench 201 or the column trench 202 in FIG. It should be noted that the width of the row or column trench shown in FIG. 1 is only for the purpose of illustration, and the actual width is not illustrated. As can be seen from FIG. 2, the row trench or the column trench is separated. The size of the ITO is significantly larger than the width of the row or column trenches.

3A and 3B are schematic diagrams showing the operation of the liquid crystal display of the present invention. Only components such as glass, ITO, and liquid crystal are shown in FIGS. 3A and 3B, and other components in FIG. 1 are not shown. Further, reference numeral 12 represents the thickness of the cartridge. FIG. 3A shows the operation principle of a liquid crystal display in which a plurality of trenches are disposed in each of the corresponding pixel points on the lower ITO 10. As shown in FIG. 3A, the lower ITO 10 has a plurality of evenly-divided cross-staggered trenches due to There is no ITO in the trench, and there is no electric field in the trench during the LCD lighting process. The liquid crystal 5 forms an oblique electric field through the upper ITO4 and the lower ITO10 where the actual ITO is present, and the liquid crystal 5 is inclined in various directions. Arranged to achieve a wide viewing angle. FIG. 3B shows the operation principle of a liquid crystal display in which a plurality of trenches are disposed in each of the corresponding pixels on the upper ITO4. As shown in FIG. 3B, the upper ITO4 has a plurality of evenly-divided cross-staggered trenches. Since there is no ITO in the trench, there is no electric field in the trench during the illumination of the LCD, and the liquid crystal 5 forms an oblique electric field through the upper and lower ITO10 and the place where the ITO is actually present in the ITO4, and the liquid crystal body 5 is inclined in various directions. Arranged to achieve a wide viewing angle.

For a clearer explanation of how to achieve a wide viewing angle in FIGS. 3A and 3B, please refer to FIG. 4A and FIG. 4B. As shown in FIG. 4A, in the case where the LCD is not applied with voltage, the liquid crystal body 5 is vertically aligned, and the LCD has no display. As shown in FIG. 4B, in the case where the LCD is applied with a voltage, the liquid crystal bodies 5 are arranged obliquely in various directions.

Preferably, the width (slit) of the row or column trench is 3 um to 30 um, and at this size, the viewing angle is wider and the picture effect is better.

In one embodiment, as shown in FIG. 5, the plurality of trenches include: a plurality of sets of trenches 501 arranged in a first direction and a plurality of sets of trenches 502 arranged in a second direction, and trenches arranged in a first direction The grooves 502 arranged in the second direction are interlaced with each other. Each set of grooves 501 arranged in the first direction is in the same direction and is parallel to the other groups of grooves 501 arranged in the first direction. Each set of trenches 502 arranged in the second direction is in the same direction and is parallel to the other sets of trenches 502 arranged in the second direction.

The angle a between the first direction and the second direction is any angle from 0 degrees to 180 degrees, and the angle between the first direction and the second direction and one side of the liquid crystal display is any angle from 0 degrees to 180 degrees.

The trench design in FIG. 5 also conforms to the working principle shown in FIGS. 3A and 3B and FIGS. 4A and 4B. Since there is no ITO in the trench, there is no electric field at the trench during the LCD lighting process, and the liquid crystal body 5 through the ITO4 and under In the ITO 10, the actual ITO is formed to form an oblique electric field, and the liquid crystal body 5 is arranged obliquely in various directions to realize a wide viewing angle. As shown in FIG. 4A, in the case where the LCD is not applied with voltage, the liquid crystal body 5 is vertically aligned, and the LCD has no display. As shown in FIG. 4B, in the case where the LCD is applied with a voltage, the liquid crystal bodies 5 are arranged obliquely in various directions.

The liquid crystal display of the invention has a wide viewing angle, and the opposite sides of the main viewing angle have no dead angle, and can be viewed at any angle. In addition, the liquid crystal display of the present invention has a simple production process, low cost, and low power consumption.

The principles and embodiments of the present invention have been described in connection with the specific embodiments of the present invention. The description of the above embodiments is only for the understanding of the method of the present invention and the core idea thereof. At the same time, for those skilled in the art, according to the present invention The present invention is not limited by the scope of the present invention.

Claims

A liquid crystal display, comprising: upper glass, lower glass, upper ITO, lower ITO, upper PI, lower PI, upper polarizer, lower polarizer, support and liquid crystal; The upper glass is disposed above the lower glass, the support body is disposed on both sides between the upper glass and the lower glass; the liquid crystal body is sealed between the upper glass and the lower glass; the lower ITO is disposed in the On the lower glass, the lower PI is disposed on the lower ITO; the upper ITO is disposed under the upper glass, the upper PI is disposed under the upper ITO; and the upper polarizer is disposed on the lower ITO On the upper glass, the lower polarizer is disposed under the lower glass; wherein each of the corresponding pixels on the lower ITO is provided with a plurality of trenches or each pixel corresponding to the upper ITO A plurality of grooves are provided in the middle.
The liquid crystal display of claim 1, wherein the plurality of trenches are uniformly distributed over the lower ITO.
The liquid crystal display according to claim 2, wherein the plurality of trenches comprise: a plurality of rows and a plurality of columns of trenches, and the row trenches are staggered with the column trenches.
A liquid crystal display according to claim 3, wherein said row grooves are parallel to one side of said liquid crystal display.
The liquid crystal display according to claim 3, wherein the row groove has an angle of 45 degrees with one side of the liquid crystal display.
A liquid crystal display according to claim 3, wherein said row grooves are perpendicular to one side of said liquid crystal display.
The liquid crystal display according to claim 3, wherein the row groove has an angle of from 0 to 180 degrees with one side of the liquid crystal display.
The liquid crystal display according to claim 2, wherein the plurality of trenches comprise: a plurality of sets of trenches arranged in a first direction and a plurality of sets of trenches arranged in a second direction, and arranged in a first direction The grooves are arranged in a staggered manner with the grooves arranged in the second direction.
The liquid crystal display according to claim 8, wherein the angle between the first direction and the second direction is an arbitrary angle.
The liquid crystal display according to claim 9, wherein an angle between the first direction and the second direction and one side of the liquid crystal display is an arbitrary angle.