WO2016173004A1

WO2016173004A1 - Liquid crystal display and liquid crystal panel

Info

Publication number: WO2016173004A1
Application number: PCT/CN2015/078977
Authority: WO
Inventors: 唐岳军
Original assignee: 深圳市华星光电技术有限公司; 武汉华星光电技术有限公司
Priority date: 2015-04-28
Filing date: 2015-05-14
Publication date: 2016-11-03
Also published as: CN104793405A; CN104793405B

Abstract

A liquid crystal display and a liquid crystal panel (10) thereof. The liquid crystal panel (10) comprises an array substrate (3), a color filter substrate (2), and liquid crystal (5) disposed between the two substrates. A support component used to limit an interval between the two substrates is disposed on the color filter substrate (2). The support component is formed of multiple first, second, and third support units (61, 62, 63), or is formed of multiple first and third support units (61, 63). The first support unit (61) is formed of one primary spacer (601) and at least one secondary spacer (602), the second support unit (62) is formed of one primary spacer (601), and the third support unit (63) is formed of one or more secondary interval bodies (602). Because at least one secondary spacer is disposed near the primary spacer of the first support unit, pressure on primary interval bodies in a same unit is effectively shared, thereby reducing a possibility that a primary spacer is damaged when the liquid crystal panel is subject to uneven pressure. Therefore, a damage rate of liquid crystal panels subject to uneven pressure can be effectively reduced.

Description

LCD display and LCD panel

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. CN20151020959, filed on Apr. 28, 2015, which is incorporated herein by reference.

Technical field

The invention belongs to the technical field of liquid crystal displays, and in particular relates to an improved liquid crystal panel and a liquid crystal display including the same.

Background technique

So far, the best-selling liquid crystal display on the market is nothing more than a Thin Film Transistor Liquid Crystal Display (TFT LCD). The thin film transistor liquid crystal display is mainly composed of a liquid crystal panel and a backlight module, wherein the liquid crystal panel belongs to one of the core components of the liquid crystal display, and the quality level of the liquid crystal panel determines the quality level of the liquid crystal display, so that a high quality liquid crystal panel is manufactured. The goal of constant pursuit.

As shown in FIG. 1 , the conventional liquid crystal panel 200 mainly includes a polarizer 202, an array substrate 201, a color filter substrate 203 and a polarizer 204, and a liquid crystal material 205 sandwiched between the two substrates. At the same time, a plurality of support structures for ensuring the spacing between the two substrates are provided between the two substrates. The support structure mainly includes a plurality of main spacers 206 and a plurality of sub spacers 207. The plurality of main spacers 206 and the plurality of sub spacers 207 are disposed on the color filter substrate 203 in a dispersed manner to ensure proper compression. The liquid crystal panel 200 can be safe and non-destructive.

However, when the liquid crystal panel 200 is subjected to a uniform large-area pressure, the main spacer 206 will be compressed to the same height as the sub-spacer 207, at which time the large-density sub-spacer 207 can share the pressure of the main spacer 206. . However, when the liquid crystal panel 200 is subjected to uneven pressure, particularly when a pressure F1 is applied to a certain point on the liquid crystal panel 200 (for example, a pressure generated in a thinning polishing process and a dynamic pressure test), the liquid crystal panel 200 is pressed. The main spacer 206 will be subjected to excessive pressure, which may cause damage to the structure of the main spacer 206, causing the liquid crystal panel 200 to be inoperable.

Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a liquid crystal panel and a liquid crystal display including the same, which can reduce the possibility that the main spacer is damaged when the liquid crystal panel receives uneven pressure, thereby reducing the liquid crystal panel from being affected. Uneven pressure, especially the rate of damage during the grinding process and dynamic pressure test after thinning.

According to a first aspect of the present invention, a liquid crystal panel comprising an array substrate, a color filter substrate, and a liquid crystal disposed between the array substrate and the color filter substrate is provided. A support assembly for defining a spacing between the array substrate and the color filter substrate is provided on the color filter substrate. The support assembly is composed of a plurality of first support units, second support units and third support units spaced apart from each other, or consists of a plurality of first support units and third support units spaced apart from each other. Wherein, the first supporting unit is composed of one main spacer and at least one auxiliary spacer, the second supporting unit is composed of one main spacer, and the third supporting unit is composed of one or more auxiliary spacers.

In one embodiment, in each of the first supporting units, the spacing between the main spacer and each of the sub-spacers is no more than 15 μm. At the same time, in each of the third supporting units, the distance between the sub-spacer and the sub-spacer is not more than 15 μm.

In one embodiment, in each of the first supporting units, the spacing between the main spacer and each of the sub-spacers is no more than 5 μm.

In one embodiment, the first supporting unit is composed of a first supporting unit and a second supporting unit, wherein the main spacer in the first supporting unit is in contact with the TFT element of the array substrate, and the second supporting unit is The main spacer is not in contact with the TFT elements of the array substrate.

In one embodiment, the first type of support unit includes only two secondary spacers. In either of the first type of support units, the two secondary spacers are on either side of the primary spacer and are offset from the primary spacer.

In one embodiment, in either first support unit, the two secondary spacers are mirror symmetrical about the primary spacer.

In one embodiment, the second support unit comprises at least two secondary spacers. In any of the second support units, at least two secondary spacers are collinear with the primary spacer.

In one embodiment, in either of the second support units, the primary spacer is disposed between any two secondary spacers.

In one embodiment, the support assembly is located on a black matrix of the color filter substrate.

According to a second aspect of the invention, there is provided a liquid crystal display comprising a liquid crystal panel according to the first aspect of the invention.

The liquid crystal panel according to the present invention has a first supporting unit, and at least one auxiliary spacer is disposed in the vicinity of the main spacer in the first supporting unit, and the auxiliary spacer in the first supporting unit can effectively share the main interval in the same unit. The pressure of the object can effectively reduce the possibility of damage of the main spacer when the liquid crystal panel is subjected to uneven pressure, and reduce the uneven pressure of the liquid crystal panel (especially the grinding process and dynamic pressure test after thinning) The damage rate at the time.

The liquid crystal panel according to the present invention has a simple structure, is easy to assemble, is safe to use, and is easy to implement and popularize.

Further, the liquid crystal display according to the second aspect of the invention has the advantageous effects of the liquid crystal panel provided according to the first aspect of the invention.

DRAWINGS

The invention will be described in more detail hereinafter based on the embodiments and with reference to the accompanying drawings. among them:

Figure 1 shows a conventional liquid crystal panel under pressure;

Figure 2 shows a liquid crystal display according to the present invention;

Figure 3 shows a liquid crystal panel according to the present invention;

Figure 4 is a liquid crystal panel in a pressurized state according to the present invention;

Figure 5 is a partial schematic view of a color filter substrate of a liquid crystal panel according to the present invention.

The same components are denoted by the same reference numerals in the drawings. The drawings are not drawn to scale.

detailed description

The invention will now be further described with reference to the accompanying drawings.

2 shows a liquid crystal display 100 according to a first aspect of the present invention, and also shows a liquid crystal panel 10 provided by a second aspect of the present invention. The liquid crystal display 100 can be selected as the best-selling thin film transistor liquid crystal display on the market.

As shown in FIG. 3 , the liquid crystal panel 10 includes a polarizer 1 , an array substrate 3 , a color filter substrate 2 , and a polarizer 4 stacked in this order, and a liquid crystal 5 disposed between the array substrate 3 and the color filter substrate 2 . The polarizer 1 and the polarizer 4 are well known to those skilled in the art and will not be described in detail herein. In addition, the liquid crystal 5 may also be referred to as a liquid crystal layer 5. A support assembly is provided between the array substrate 3 and the color filter substrate 2. The support assembly is for defining a spacing between the array substrate 3 and the color filter substrate 2.

As shown in Figures 3 to 5, the support assembly may be comprised of a plurality of first support units 61 and a second branch that are spaced apart from each other. The support unit 62 and the third support unit 63 are composed. In addition to this, the support assembly can also be composed of a plurality of first support units 61 and third support units 63 that are spaced apart from one another. That is to say, one skilled in the art can select one of the two support components according to actual needs. The first supporting unit 61 is composed of one main spacer 601 and at least one auxiliary spacer 602, the second supporting unit 62 is composed of one main spacer 601, and the third supporting unit 63 is composed of one or more auxiliary spacers 602. .

As shown in FIG. 4, since the main spacer 601 of the first supporting unit 61 has at least one auxiliary spacer 602 adjacent thereto, when the liquid crystal panel 10 is subjected to uneven pressure, especially for a point on the liquid crystal panel 10. When the pressure F2 is received, the at least one auxiliary spacer 602 next to the main spacer 601 can effectively share the force of the main spacer 601, thereby effectively reducing the possibility of structural damage of the main spacer 206, thereby thereby The possibility of damage of the liquid crystal panel 200 in the grinding process and the dynamic pressure test after thinning is reduced to a large extent. At the same time, the main spacer 601 and the auxiliary spacer 602 jointly support the gap between the substrates, and increase the stress area of the array substrate 3, so that the structure of the array substrate 3 is less likely to be damaged.

Specifically, in the first supporting unit 61, the distance between each of the main spacers 601 and the sub-spacers 602 is not more than 15 μm, preferably not more than 5 μm. It is easy to understand that if the spacing between the primary spacer 601 and the secondary spacer 602 is greater than 15 μm, the primary spacer 601 should belong to the second supporting unit 62. In the third supporting unit 63, the spacing between the sub-spacer 602 and the sub-spacer 602 is not more than 15 μm. It is easy to understand that if the spacing between the secondary spacer 602 and the secondary spacer 602 is greater than 15 μm, the two secondary spacers 602 should belong to two different third supporting units 63.

In one embodiment, the main spacer 601 and the sub spacer 602 may each be made of an insulating material such as a resin or an insulating inorganic material. In general, both the main spacer 601 and the sub spacer 602 may be configured in a truncated cone shape. The truncated-shaped spacers help to reduce the manufacturing difficulty, and at the same time, can achieve the first weak and strong elastic force, which is very beneficial to buffer.

Meanwhile, the main spacer 601 and the auxiliary spacer 602 may be made of different materials or materials of different densities such that they have different elastic strengths (corresponding to the stiffness coefficient of the spring), when the liquid crystal panel 10 is pressed. When large, the elastically large secondary spacer 602 can serve as a primary support, effectively reducing the likelihood of structural damage to the primary spacer 206.

In the embodiment shown in FIG. 3, the top end of the main spacer 601 has been in contact with the array substrate 3, and the sub-spacer 602 is not in contact with the array substrate 3. In this way, the sub-spacer 602 can function as a support only when the liquid crystal panel 10 is subjected to a large pressure. The main function of the main spacer 601 is to support two substrates, and the amount of compression of the main spacer 601 can vary to some extent with the filling amount of the liquid crystal 5. It is advantageous for the improvement of the production yield of the liquid crystal panel 10.

As shown in FIG. 5, the color filter substrate 2 includes an array-arranged pixel unit 2a and a black matrix for spacing the pixel units 2a. Each pixel unit 2a is referred to as a sub-pixel. Subpixels have three colors and they are adjacent to each other. Each of the main spacers 601 and each of the sub spacers 602 are fixed on the color filter substrate 2, wherein the distribution density of the main spacers 601 is small, and the distribution density of the sub spacers 602 is large, and the so-called distribution density refers to units. The number of areas in the area, or the contact area between the spacer and the opposite substrate in the unit area. The black matrix of the color filter substrate 2 may cover the TFT elements, the gate electrode lines, and the data signal lines of the array substrate 3. In order to avoid lowering the brightness and effect of the liquid crystal panel 10, the entire support assembly may be disposed on the black matrix of the color filter substrate 2.

In the actual production process, it is often difficult for the main spacer 601 to completely evade the TFT element 3c, and the main spacer 601 which can be in contact with the TFT element 3c can easily damage the TFT element 3c. In order to prevent the TFT element 3a from being damaged, at least one auxiliary spacer 602 is provided in the vicinity of these main spacers 601 such that it constitutes the first supporting unit 61 with these secondary spacers 602. Since the first supporting unit 61 has the auxiliary spacer 602 adjacent to the spacer 601, and the auxiliary spacer 602 can effectively share the force of the main spacer 601, the main spacer 601 is prevented from applying the entire pressure to the TFT element. Further, it is advantageous to protect the TFT element.

According to the position of the main spacer 601 in the first supporting unit 61, the plurality of first supporting units 61 may be divided into a first supporting unit and a second supporting unit. In detail, the main spacer 601 of the first type of support unit can be in contact with the first supporting unit 61 of the TFT element 3c of the array substrate 3, and the main spacer 601 of the second type of supporting unit cannot be combined with the TFT of the array substrate 3. The element 3c is in contact.

In a preferred embodiment, each of the first type of support units includes only two secondary spacers 602. Meanwhile, in any one of the first supporting units, the two sub-spacers 602 are on both sides of the main spacer 601 and are offset from the main spacer 601, so that the two sub-spacers 602 and the main spacer 601 form a character together. Or a word distribution (see Figure 61, right below the 61). Such a product or a word distribution is advantageous for the force of the main spacer 601 which is divided by the two sub-spacers 602, and the main spacer 601 is effectively prevented from being pressed against the TFT element. More preferably, in any of the first supporting units, the two sub-spacers 602 are mirror-symmetrical with respect to the main spacer 601, so that the three form a uniform symmetrical shape or a flat shape, which is obviously advantageous for protecting the TFT elements.

In another preferred embodiment, each of the second type of support units includes at least two secondary spacers 602. At the same time, in any of the second supporting units, the at least two sub-spacers 602 are collinear with the main spacer 601 (see 61 on the right side of FIG. 5). More preferably, the main spacer 601 is disposed between any two sub spacers 602, which facilitates uniform stress on each of the spacers 602, thereby protecting the safety of the liquid crystal panel 10.

In summary, the liquid crystal panel 10 according to the present invention can reduce the possibility that the main spacer 601 is damaged when the liquid crystal panel 10 is subjected to uneven pressure, thereby reducing the uneven pressure of the liquid crystal panel 10 (especially after thinning). Damage rate during grinding process and dynamic pressure test).

Although the present invention has been described with reference to the preferred embodiments thereof, various modifications may be made without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A liquid crystal panel comprising an array substrate, a color filter substrate, and a liquid crystal disposed between the array substrate and the color filter substrate, wherein the array substrate and the color filter substrate are disposed on the color filter substrate a spaced apart support assembly consisting of a plurality of first support units, second support units and third support units spaced apart from each other, or by a plurality of first support units and third support units spaced apart from each other The composition, wherein the first supporting unit is composed of one main spacer and at least one auxiliary spacer, the second supporting unit is composed of one main spacer, and the third supporting unit is composed of one or more Sub-spacer composition.
The liquid crystal panel according to claim 1, wherein in each of the first supporting units, a distance between the main spacer and each of the sub spacers is not more than 15 μm, and in each of the third supporting units The distance between the secondary spacer and the secondary spacer is not more than 15 μm.
The liquid crystal panel according to claim 2, wherein a distance between the main spacer and each of the sub spacers is not more than 5 μm in each of the first supporting units.
The liquid crystal panel according to claim 2, wherein the first supporting unit is composed of a first supporting unit and a second supporting unit, wherein the main spacer in the first supporting unit and the The TFT elements of the array substrate are in contact, and the main spacers in the second type of support unit are not in contact with the TFT elements of the array substrate.
The liquid crystal panel according to claim 4, wherein said first type of supporting unit includes only two of said sub-spacers, and in any one of said first type of supporting units, two of said sub-spacers are in said Both sides of the main spacer are offset from the main spacer.
The liquid crystal panel according to claim 5, wherein, in any of said first type of supporting units, said two sub-spacers are mirror-symmetrical with respect to said main spacer.
The liquid crystal panel according to claim 4, wherein said second supporting unit comprises at least two of said secondary spacers, and in any one of said second supporting units, at least two of said secondary spacers and said main spacer The spacers are collinear.
The liquid crystal panel according to claim 7, wherein in any one of said second type of supporting units, said main spacer is disposed between any two of said sub-spacers.
The liquid crystal panel according to claim 1, wherein the support member is located on a black matrix of the color filter substrate.
A liquid crystal display comprising a liquid crystal panel, the liquid crystal panel comprising an array substrate, a color filter substrate, and a liquid crystal disposed between the array substrate and the color filter substrate, wherein the color film substrate is provided with a limiting a support assembly for spacing the array substrate from the color filter substrate, the support assembly being composed of a plurality of first support units, second support units and third support units spaced apart from each other, or by a plurality of spaced apart ones a first supporting unit and a third supporting unit, wherein the first supporting unit is composed of one main spacer and at least one auxiliary spacer, and the second supporting unit is composed of one main spacer, the third The support unit consists of one or more of the secondary spacers.
The liquid crystal display according to claim 10, wherein in each of the first supporting units, a distance between the main spacer and each sub-spacer is not more than 15 μm, and in each of the third supporting units The distance between the secondary spacer and the secondary spacer is not more than 15 μm.
The liquid crystal display according to claim 11, wherein a distance between the main spacer and each of the sub spacers is not more than 5 μm in each of the first supporting units.
The liquid crystal display of claim 11, wherein the first supporting unit is composed of a first type of supporting unit and a second type of supporting unit, wherein the main spacer in the first type of supporting unit is The TFT elements of the array substrate are in contact, and the main spacers in the second type of support unit are not in contact with the TFT elements of the array substrate.
The liquid crystal display of claim 13, wherein the first type of support unit comprises only two of the sub-spacers, and in any one of the first type of support units, two of the sub-spacers are in the Both sides of the main spacer are offset from the main spacer.
The liquid crystal display of claim 14, wherein in any one of said first type of support units, said two spacers are mirror-symmetrical with respect to said main spacer.
The liquid crystal display of claim 13, wherein the second type of support unit comprises at least two of the sub-spacers, and in any one of the second types of support units, at least two of the sub-spacers and the main The spacers are collinear.
A liquid crystal display according to claim 16, wherein in any one of said second supporting units, said main spacer is disposed between any two of said sub-spacers.
The liquid crystal display of claim 10, wherein the support member is located on a black matrix of the color filter substrate.