WO2020062447A1

WO2020062447A1 - Display panel and display device

Info

Publication number: WO2020062447A1
Application number: PCT/CN2018/114061
Authority: WO
Inventors: 李泽尧
Original assignee: 惠科股份有限公司; 重庆惠科金渝光电科技有限公司
Priority date: 2018-09-28
Filing date: 2018-11-06
Publication date: 2020-04-02
Also published as: CN208969389U

Abstract

A display panel and display device, wherein the display panel comprises a first substrate, a liquid crystal layer and a second substrate; the liquid crystal layer is provided with a spacer; and a black matrix layer and two or more color barrier layers are provided at the part where the second substrate and the spacer make contact.

Description

Display panel and display device

Technical field

The present application relates to the field of display technology, and in particular, to a display panel and a display device.

Background technique

Liquid crystal display (Liquid Crystal Display, LCD) has many advantages such as thin body, power saving, no radiation, etc., and has been widely used. The liquid crystal layer in the liquid crystal display panel of the liquid crystal display is often provided with a spacer (Photo Spacer, PS) for supporting the first substrate and the second substrate. However, the liquid crystal display is often affected by the environmental pressure during use. The force of the spacer will change, causing the spacer to deform to some extent.

In a conventional liquid crystal display, the spacer is disposed between the BM (Black Matrix) layer of the second substrate and the metal layer of the first substrate plus two insulating layers. When the spacer is subjected to a force change, a larger distance occurs. Deformation causes the box thickness of the liquid crystal display to change to a large extent, which easily causes problems such as vacuum bubbles (bubbles) or gravity mura (referring to the phenomenon that the brightness of the display is uneven and causes various traces). Therefore, the conventional liquid crystal display has the disadvantage of low reliability.

Summary of the Invention

According to various embodiments of the present application, a display panel and a display device are provided.

A display panel includes:

First substrate

A second substrate opposite to the first substrate;

A liquid crystal layer disposed between the first substrate and the second substrate; and

A spacer disposed on the liquid crystal layer, one end of the spacer is in contact with the second substrate, and the other end of the spacer is in contact with the first substrate;

A portion of the second substrate in contact with the spacer is provided with a black matrix layer and two or more color resist layers.

In an embodiment, a portion of the first substrate that is in contact with the spacer is provided with an insulating layer and two or more conductive layers.

In one embodiment, the material of the conductive layer is graphene.

In one embodiment, an active layer is further provided on a portion of the first substrate that is in contact with the spacer.

In one embodiment, a portion of the first substrate that is in contact with the spacer is provided with one active layer, two conductive layers, and two insulating layers.

In one embodiment, the number of the color resist layers is three layers.

In one embodiment, the color resist layers are a red color resist layer, a green color resist layer, and a blue color resist layer, respectively.

In one embodiment, the number of the spacers is plural, and the number of the color resist layers provided in a portion of the second substrate that is in contact with each of the spacers is not completely the same.

In one embodiment, a part of the color resist layer of the second substrate in contact with the spacer is provided as two layers, and another part of the color resist layer of the second substrate in contact with the spacer is provided as Three floors.

In one embodiment, the number of the spacers is plural, and the number of the color resist layers provided on a portion of the second substrate that is in contact with each of the spacers is completely the same.

In one embodiment, a plurality of the spacers are uniformly distributed on the liquid crystal display layer.

In one embodiment, the materials and shapes of the plurality of spacers are the same.

In one embodiment, the first substrate is an array substrate, and the second substrate is a color filter substrate.

A display device includes a backlight module and a display panel. The display panel includes:

First substrate

A second substrate opposite to the first substrate;

In one embodiment, the display device further includes:

A first polarizer disposed on a side of the second substrate away from the liquid crystal layer; and

A second polarizer is disposed on a side of the first substrate away from the liquid crystal layer.

In one embodiment, the backlight module is an edge-lit backlight module.

Details of one or more embodiments of the present application are set forth in the accompanying drawings and description below. Other features, objects, and advantages of the invention will be apparent from the description, the drawings, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

1 is a schematic structural diagram of a display panel according to an embodiment;

2 is a schematic structural diagram of a display panel in another embodiment;

FIG. 3 is a schematic structural diagram of a display panel in another embodiment.

detailed description

In order to facilitate understanding of the present application, the present application will be described more fully with reference to the related drawings. The drawings show the preferred embodiments of the present application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of this application.

Referring to FIG. 1, a display panel includes a first substrate 20, a second substrate 10 disposed opposite the first substrate 20, a liquid crystal layer 30 disposed between the first substrate 20 and the second substrate 10, and a spacer 31 Is disposed on the liquid crystal layer 30, one end of the spacer 31 is in contact with the second substrate 10, and the other end of the spacer 31 is in contact with the first substrate 20; a portion of the second substrate 10 in contact with the spacer 31 is provided with a black matrix layer 11 and Two or more color resist layers 12.

Specifically, the second substrate 10 further includes a substrate body 13, and the black matrix layer 11 and the color resist layer 12 are sequentially stacked on the substrate body 13. The second substrate 10 (Color Filter) is an optical filter substrate that expresses colors. It can accurately select light that passes through a certain band range and reflects light in other bands. The basic structure of the second substrate 10 is composed of a transparent substrate (Glass Substrate), a black matrix (Black matrix), a color resist layer (Color layer), a protective layer (Over Coat), and an ITO conductive film. The material of the transparent substrate is generally glass or plastic, and glass substrates are commonly used; the materials that make up the black matrix are distributed on the transparent substrate to prevent light leakage and provide light shielding for TTF (Thin Film Transistor, thin film transistor); color resistance The layers are generally obtained by using pigments or dyes as colorants to obtain three primary colors of R (red), G (green), and B (blue). It should be noted that the material of the black matrix can be either an organic material or an inorganic material. The specific material to be used can be selected differently according to the actual situation, as long as it can prevent light leakage and light shielding.

In traditional display panels, the contact surface of the second substrate and the spacer is often provided with only one black matrix layer and one color resistance layer, so that when the environment of the display panel changes, the internal and external pressures of the display panel are not consistent. As a result of the large deformation of the spacer, the cell thickness of the corresponding display panel L (Cell gap, that is, the distance from the second substrate to the first substrate without spacers) will also change to the same extent. After the amount of change in the thickness L of the box exceeds a certain limit, it is easy to cause a vacuum bubble or gravity mura of the display panel. By providing two or more color resist layers 12 on the contact surface between the second substrate 10 and the spacer 31, the height H of the spacer 31 is reduced (that is, the height of the second substrate 10 and the spacer 31 is reduced). The distance from the contact surface to the contact surface between the first substrate 20 and the spacer 31). As the object is in the stage of elastic deformation, the ratio of stress to strain is the coefficient of elasticity. When the materials used are the same, the coefficient of elasticity is a fixed value. The stress is the ratio of the magnitude of the force to the force area, and the strain is the ratio of the magnitude of the deformation to the total length. When the elastic coefficient, the magnitude of the force, and the force area have not changed, the total length (that is, the height H of the spacer 31 When the value of) is reduced, the amount of deformation will be reduced accordingly. That is, when the height H of the spacer 31 is reduced, when the display panel is subjected to the same amount of force as a conventional display panel, a smaller amount of change occurs, and the corresponding change in the thickness L of the display panel will also Reduced, thereby reducing the possibility that the variation of the box thickness L exceeds the limit, effectively reducing the risk of vacuum bubbles or gravity mura of the display panel.

Further, in one embodiment, the number of the color resist layers 12 is three layers. Specifically, it is possible to reduce the height H of the spacer 31 by providing one black matrix layer 11 and three color resist layers 12 on the contact surface between the second substrate 10 and the spacer 31.

Furthermore, in one embodiment, the three color resist layers 12 disposed on the contact surface between the second substrate 10 and the spacer 31 are a red color resist layer 12, a green color resist layer 12, and a blue color resist layer 12, respectively. It can be understood that the number of color resist layers 12 is not unique, and is not limited to the three color resist layers 12 in this embodiment, but may also be two color resist layers 12, four color resist layers 12, and five color resists. The layer 12 or the like may be any one that can reduce the height H of the spacer 31. In addition, the color selection of the color resist layer 12 is not unique, and different selections can be made according to actual application scenarios.

In one embodiment, referring to FIG. 2, an insulating layer 22 and two or more conductive layers 21 are disposed on a portion of the first substrate 20 that is in contact with the spacer 31.

Specifically, the first substrate 20 further includes a substrate body 24, and an insulating layer and a conductive layer are stacked on the substrate body 24. The first substrate 20 has a plurality of scanning lines arranged in the first direction and a plurality of signal lines arranged in the second direction. The plurality of scanning lines are insulated from the plurality of signal lines and intersect, and the plurality of scanning lines and the plurality of signal lines. The insulation intersect defines a plurality of pixel units arranged in an array; the first substrate 20 is further provided with a first substrate 20-row driving circuit (GOA) that provides scanning signals for the pixel units, and Corresponding circuit. A liquid crystal layer 30 is provided between the first substrate 20 and the second substrate 10, and a liquid crystal 32 and a spacer 31 are provided in the liquid crystal layer 30. The liquid crystal 32 refers to a state in which the rigidity of a solid substance is lost after being melted or dissolved by a solvent. , To obtain the fluidity of the liquid, and retain the anisotropic orderly arrangement of some crystalline material molecules, forming an intermediate state material that has both the properties of crystal and liquid. When a current passes through the thin film transistor, the first substrate 20 and the second substrate 10 are turned on, thereby generating an electric field, causing liquid crystal molecules to deflect, thereby changing the polarization of light. In addition, the first substrate 20 and the second substrate 10 are bonded together to form each pixel including three colors of red, green, and blue. These pixels emitting red, green, and blue colors constitute an image frame on the display panel.

The spacer 31 in the liquid crystal layer 30 has a function of supporting the first substrate 20 and the second substrate 10. The contact surface between the first substrate 20 and the spacer 31 is often provided with a conductive layer 21 and two insulating layers 22. When the force is changed, the spacer 31 also undergoes a large deformation, which causes a large change in the box thickness L of the display panel, which easily causes a vacuum bubble or gravity mura. By setting the conductive layer 21 on the contact surface of the first substrate 20 and the spacer 31 to two or more layers, the height H of the spacer 31 is reduced, and two or two layers are provided to the second substrate 10 and the spacer 31 described above. The color resist layer 12 above the layer is similar. When subjected to the same magnitude of force, the amount of change in the thickness L of the box is reduced, the risk of vacuum bubble or gravity mura of the display panel is reduced, and the use reliability of the display panel is effectively improved.

In one embodiment, the material of the conductive layer 21 is graphene. It is a two-dimensional carbon nanomaterial with hexagonal honeycomb lattice composed of carbon atoms with sp2 hybrid orbits. Graphene is widely used in physics, materials, and electronic information technology due to its excellent optical, electrical, and mechanical characteristics. field. It can be understood that, in other embodiments, other materials may be used as the material of the conductive layer 21.

In one embodiment, the number of the conductive layers 21 is two layers.

Specifically, the contact surface of the first substrate 20 and the spacer 31 is provided with two conductive layers 21 and two insulating layers 22. At this time, the contact surface of the second substrate 10 and the spacer 31 is provided with a black matrix layer 11 and two or more color resist layers 12, while increasing the thickness of the contact surface of the second substrate 10 and the spacer 31 and the The thickness of the contact surface between the substrate 20 and the spacer 31 further reduces the height H of the spacer 31 and more effectively avoids the risk of a vacuum bubble or gravity mura on the display panel. It can be understood that, in other embodiments, two or more conductive layers 21 and insulating layers 22 may be provided only on the contact surface between the first substrate 20 and the spacer 31, and the second substrate 10 is in contact with the spacer 31. The surface is still a black matrix layer 11 and a color resist layer 12, and the height H of the spacer 31 can also be reduced to achieve the same purpose. It can be understood that, in other embodiments, the number of the conductive layers 21 may be other, such as three layers, four layers, etc., as long as the height H of the spacer 31 can be effectively reduced.

In one embodiment, referring to FIG. 3, a portion of the first substrate 20 that is in contact with the spacer 31 is further provided with an active layer 23.

Specifically, the first substrate 20 includes an active layer 23, a conductive layer 21, a source, and a drain disposed on the substrate. The conductive layer 21 is disposed on opposite sides of the active layer 23 and is in contact with the active layer 23. The electrodes and the drain are respectively disposed on the conductive layers 21 on opposite sides of the active layer 23. Therefore, an active layer 23, a conductive layer 21, and an insulating layer 22 may be provided on a contact surface between the first substrate 20 and the spacer 31 to reduce the height H of the spacer 31.

In one embodiment, a portion of the first substrate 20 that is in contact with the spacer 31 is provided with one active layer 23, two conductive layers 21, and two insulating layers 22.

Specifically, one active layer 23, two conductive layers 21, and two insulating layers 22 may be provided at the contact surface between the first substrate 20 and the spacer 31, thereby effectively reducing the height H of the spacer 31 and achieving Reduce the risk of vacuum bubble or gravity mura on the display panel. It should be noted that the number of active layers 23 is not unique, and is not limited to only one layer in the above embodiment. Two active layers 23 may be provided, as long as the height H of the spacer 31 can be reduced. For the purpose.

In one embodiment, the number of the spacers 31 is plural, and the number of the color resist layers 12 provided in the portions of the second substrate 10 that are in contact with each of the spacers 31 is not completely the same.

Specifically, in the liquid crystal layer 30 of the display panel, the number of the spacers 31 is not unique. In order to support the first substrate 20 and the second substrate 10, there is sufficient space between the first substrate 20 and the second substrate 10. To store liquid crystal molecules, a large number of spacers 31 are often provided between the second substrate 10 and the first substrate 20. In order to reduce the height H of the spacer 31 and reduce the risk of vacuum bubbles or gravity mura of the display panel, when the color resist layer 12 is provided on the contact surface between the second substrate 10 and the spacer 31, the number of the color resist layer 12 may be incomplete. same.

In one embodiment, a part of the color resist layer 12 in a portion of the second substrate 10 in contact with the spacer 31 is provided in two layers, and another part of the color resist layer 12 in a portion of the second substrate 10 in contact with the spacer 31 is provided in three layers. .

Specifically, the color resist layer 12 on the contact surface of part of the second substrate 10 and the spacer 31 may be set as two layers, and the color resist layer 12 on the contact surface of the other part of the second substrate 10 and the spacer 31 may be set as three layers. The effect of lowering the spacer 31 can also be achieved. It should be noted that, in other embodiments, the color resist layer 12 on the contact surface of the second substrate 10 and the spacer 31 may also be set to other layers with incomplete numbers. It can be understood that, in one embodiment, the conductive layer 21 on the contact surface between the first substrate 20 and the spacer 31 can also be set to an inconsistent number of layers, as long as the height H of the spacer 31 can be reduced.

It can be understood that, in one embodiment, the number of the color resist layers 12 provided in the portions of the second substrate 10 that are in contact with the spacers is completely the same. Specifically, the number of all the color resist layers 12 disposed on the contact surface between the second substrate 10 and the spacer 31 is the same, and has the advantage of convenient processing while reducing the height H of the spacer 31. It can be understood that, in one embodiment, the conductive layers 21 and the active layers 23 on the contact surfaces of all the first substrates 20 and the spacers 31 may be respectively set to the same number of layers. It should be noted that, in one embodiment, the number of the color resist layers 12 provided on the contact surface of the second substrate 10 and the spacer 31 is the same, and the number of the conductive layers 21 provided on the contact surface of the first substrate 20 and the spacer 31 is the same. The number and the number of active layers 23 are respectively the same, that is, in this embodiment, the heights H of all the spacers 31 are the same. While realizing the reduction of the risk of vacuum bubble or gravity mura of the display panel, it also has processing convenience and display Panel display has the advantage of uniform effect.

In one embodiment, the plurality of spacers 31 are uniformly distributed on the liquid crystal display layer.

Specifically, the plurality of spacers 31 are evenly distributed on the liquid crystal layer 30 between the first substrate 20 and the second substrate 10, and when the display panel is subjected to an external force, the force acting on the display panel can be evenly shared. , Further improving the use reliability of the display panel. It can be understood that, in other embodiments, the spacers 31 may also be distributed on the liquid crystal layer 30 in other manners; for example, in one embodiment, in the middle region of the display panel, since the possibility of receiving external force is greater, Many spacers 31 are provided in this partial area to share external force.

In one embodiment, the materials and shapes of the plurality of spacers 31 are the same.

Specifically, the shape of the spacer 31 may be a circle, an ellipse, a circular truncated cone or a cylindrical shape, and the specific form of the spacer 31 may be selected according to actual conditions. In this embodiment, all the spacers 31 use the same shape and the same material of the spacers 31. When the same external force is applied, the same deformation occurs, which also improves the reliability of the display panel.

In one embodiment, the first substrate 20 is an array substrate, and the second substrate 10 is a color filter substrate.

Specifically, the array substrate is a thin film transistor array substrate, on which data lines arranged in a first direction and scan lines arranged in a second direction are provided, and pixel units arranged in an array are defined at the intersection of the data lines and the scan lines. After providing a scanning signal and a data signal to the pixel unit, the pixel unit emits light. The color film substrate has a glass substrate composed of a glass substrate, a black matrix, a color layer, a protective layer, and an ITO conductive film, which can accurately select light passing through a certain band range and reflect light in other bands. The array substrate and the color filter substrate are oppositely arranged, and can be displayed by an image source under the driving of a light source and a corresponding driving signal.

In order to facilitate understanding of the present application, the present application is explained in detail below with reference to specific embodiments. Taking the number of color resist layers 12 as three layers, the number of conductive layers 21 as two layers, and the number of insulating layers 22 as two layers, for example, please refer to FIG. 3. At this time, the portion where the second substrate 10 is in contact with the spacer 31, The substrate body 13 of the second substrate 10 is provided with a black matrix layer, a first color resist layer, a second color resist layer, and a third color resist layer in this order. The portion of the first substrate 20 that is in contact with the spacer 31 is A substrate 20 of a substrate 20 is provided with a first insulating layer, a first conductive layer, an active layer, a second conductive layer, and a second insulating layer in this order. With the above setting, the height of the spacer 31 is reduced, thereby effectively reducing the possibility of vacuum bubble or gravity mura of the liquid crystal display panel.

In the above display panel, a portion of the second substrate 10 that is in contact with the spacer 31 is provided with a black matrix layer 11 and two or more color resist layers 12. The portion of the first substrate 20 that is in contact with the spacer 31 is unchanged. In this case, the height H of the spacer 31 is effectively reduced. A certain degree of deformation occurs when the display panel is subjected to a force. Since the height H of the spacer 31 becomes smaller and the deformation amount does not change, the deformation size of the spacer 31 is lower at this time, and the corresponding display panel box The thickness L change amount will also be lower, thereby reducing the possibility of vacuum bubble or gravity mura of the liquid crystal display panel, which has the advantage of strong reliability compared with the traditional liquid crystal display panel.

A display device includes a backlight module and the above-mentioned display panel.

Specifically, the display panel is shown in FIGS. 1-3. The backlight module provides sufficient brightness and a uniformly distributed light source for the display panel so that it can display images normally. The liquid crystal display is a passive light-emitting element, and does not emit light through the display panel itself. The display panel displays images or characters as a result of modulating light.

In a conventional display panel, the contact surface of the second substrate 10 and the spacer 31 is often provided with only one black matrix layer 11 and one color resist layer 12, so that when the environment of the display panel changes, the display panel ’s The internal and external pressures are inconsistent, causing the spacer 31 to undergo a large deformation, and the corresponding cell thickness of the display panel, L (Cell gap, ie the distance from the second substrate 10 to the first substrate 20 without the spacer 31 portion) also occurs. With the same degree of change, when the change amount of the box thickness L of the display panel exceeds a certain limit, it is easy to cause a vacuum bubble or a gravity mura of the display panel. By providing two or more color resist layers 12 on the contact surface of the second substrate 10 and the spacer 31, the height H of the spacer 31 is reduced. As the object is in the stage of elastic deformation, the ratio of stress to strain is the coefficient of elasticity. When the materials used are the same, the coefficient of elasticity is a fixed value. The stress is the ratio of the magnitude of the force to the force area, and the strain is the ratio of the magnitude of the deformation to the total length. When the elastic coefficient, the magnitude of the force, and the force area have not changed, the total length (that is, the height H of the spacer 31 When the value of) is reduced, the amount of deformation will be reduced accordingly. That is, when the height H of the spacer 31 is reduced, when the display panel is subjected to the same amount of force as a conventional display panel, a smaller amount of change occurs, and the corresponding change in the thickness L of the display panel will also Reduced, thereby reducing the possibility that the variation of the box thickness L exceeds the limit, effectively reducing the risk of vacuum bubbles or gravity mura of the display panel.

Further, the spacer 31 in the liquid crystal layer 30 has a function of supporting the first substrate 20 and the second substrate 10, and the contact surface of the first substrate 20 and the spacer 31 is often provided with a conductive layer 21 and two insulating layers 22, When the force of the display panel changes, the spacer 31 also undergoes a large deformation, which causes a large change in the thickness L of the display panel, which may easily cause a vacuum bubble or gravity mura. By setting the conductive layer 21 on the contact surface of the first substrate 20 and the spacer 31 to two or more layers, the height H of the spacer 31 is reduced, and two layers or the second substrate 10 and the spacer 31 are provided. The two or more color resist layers 12 are similar. When subjected to the same magnitude of force, the amount of change in the thickness L of the box is reduced, the risk of vacuum bubble or gravity mura of the display panel is reduced, and the use reliability of the display panel is effectively improved. It should be noted that, in one embodiment, the material of the conductive layer 21 is graphene. It can be understood that, in other embodiments, other materials may be used as the material of the conductive layer 21.

Furthermore, in one embodiment, the side of the first substrate 20 that is in contact with the spacer 31 is further provided with an active layer 23. Specifically, the first substrate 20 includes an active layer 23, a conductive layer 21, a source, and a drain disposed on the substrate. The conductive layer 21 is disposed on opposite sides of the active layer 23 and is in contact with the active layer 23. The electrodes and the drain are respectively disposed on the conductive layers 21 on opposite sides of the active layer 23. Therefore, an active layer 23, a conductive layer 21, and an insulating layer 22 may be provided on a contact surface between the first substrate 20 and the spacer 31 to reduce the height H of the spacer 31. In one embodiment, an active layer 23, two conductive layers 21, and two insulating layers 22 may be provided at a contact surface between the first substrate 20 and the spacer 31, thereby effectively reducing the height of the spacer 31. H, to reduce the risk of vacuum bubble or gravity mura in the display panel. It should be noted that the number of active layers 23 is not unique, and is not limited to only one layer in the above embodiment. Two active layers 23 may be provided, as long as the height H of the spacer 31 can be reduced. For the purpose.

In one embodiment, the display device further includes a first polarizer disposed on a side of the second substrate 10 away from the liquid crystal layer 30; and a second polarizer disposed on a side of the first substrate 20 away from the liquid crystal layer 30.

Specifically, a liquid crystal material is placed between two transparent conductive glasses attached with a polarizer having a vertical optical axis, and the liquid crystal molecules are distributed parallel to the transparent conductive glass when no voltage is applied, and the two transparent conductive glasses are respectively arranged on the two transparent conductive glasses. Alignment films oriented perpendicular to each other, the liquid crystal molecules are sequentially rotated and arranged in the direction of the fine grooves of the alignment film. If no electric field is applied, light is incident from the second polarizer, and its polarization direction is rotated 90 degrees according to the arrangement of the liquid crystal molecules. The first polarizer is emitted, and it is in a bright state at this time. If two conductive glasses are energized, an electric field will be formed between the two conductive glasses, which will affect the alignment of the liquid crystal molecules. When the voltage is large enough, the molecules are aligned vertically along the electric field, the polarization direction of the light does not change, and the light cannot penetrate , Which in turn shields the light source, thereby forming a dark state under the condition of voltage application.

In one embodiment, the backlight module is an edge-lit backlight module.

Specifically, the edge-light-type backlight module refers to that a light source (Edge lighting) is disposed on the side of the light guide plate, and the light guide plate uniformly emits light behind the liquid crystal panel. The design of the edge-lit backlight module makes the display device have the advantages of light weight, thin, narrow frame and low power consumption. It can be understood that, in other embodiments, the backlight module may also be a direct type backlight module or a hollow type backlight module, as long as it can provide a corresponding light source for the display device.

In the above display device, a portion of the second substrate 10 that is in contact with the spacer 31 is provided with a black matrix layer 11 and two or more color resist layers 12, and a portion of the first substrate 20 that is in contact with the spacer 31 does not occur With the change, the height H of the spacer 31 is effectively reduced. A certain degree of deformation occurs when the display panel is subjected to a force. Since the height H of the spacer 31 becomes smaller and the deformation amount does not change, the deformation size of the spacer 31 is lower at this time, and the corresponding display panel box The thickness L change amount will also be lower, thereby reducing the possibility of vacuum bubble or gravity mura of the liquid crystal display panel, which has the advantage of strong reliability compared with the traditional liquid crystal display panel.

The technical features of the embodiments described above can be arbitrarily combined. In order to simplify the description, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, It should be considered as the scope described in this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they cannot be understood as a limitation on the scope of patent application. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims

A display panel includes:

First substrate

A second substrate opposite to the first substrate;

A liquid crystal layer disposed between the first substrate and the second substrate; and

A spacer disposed on the liquid crystal layer, one end of the spacer is in contact with the second substrate, and the other end of the spacer is in contact with the first substrate;

A portion of the second substrate in contact with the spacer is provided with a black matrix layer and two or more color resist layers.
The display panel according to claim 1, wherein an portion of the first substrate that is in contact with the spacer is provided with an insulating layer and two or more conductive layers.
The display panel according to claim 2, wherein a material of the conductive layer is graphene.
The display panel according to claim 2, wherein a portion of the first substrate that is in contact with the spacer further includes an active layer.
The display panel according to claim 4, wherein a portion of the first substrate that is in contact with the spacer is provided with an active layer, two conductive layers, and two insulating layers.
The display panel according to claim 1, wherein the number of the color resist layers is three layers.
The display panel according to claim 6, wherein the color resist layers are a red color resist layer, a green color resist layer, and a blue color resist layer, respectively.
The display panel according to claim 1, wherein the number of the spacers is plural, and the number of the color resist layers provided in a portion of the second substrate that is in contact with each of the spacers is not completely the same.
The display panel according to claim 8, wherein a part of the color resist layer of the second substrate in contact with the spacer is provided in two layers, and the other part of the second substrate is in contact with the spacer. The color resist layer of the contact portion is provided in three layers.
The display panel according to claim 1, wherein the number of the spacers is plural, and the number of the color resist layers provided in a portion of the second substrate that is in contact with each of the spacers is completely the same.
The display panel according to claim 10, wherein a plurality of the spacers are uniformly distributed on the liquid crystal display layer.
The display panel according to claim 11, wherein a plurality of the spacers have the same material and shape.
The display panel according to claim 1, wherein the first substrate is an array substrate, and the second substrate is a color filter substrate.
A display device includes a backlight module and a display panel. The display panel includes:

First substrate

A second substrate opposite to the first substrate;

A liquid crystal layer disposed between the first substrate and the second substrate; and

A spacer disposed on the liquid crystal layer, one end of the spacer is in contact with the second substrate, and the other end of the spacer is in contact with the first substrate;

A portion of the second substrate in contact with the spacer is provided with a black matrix layer and two or more color resist layers.
The display device according to claim 14, wherein the display device further comprises:

A first polarizer disposed on a side of the second substrate away from the liquid crystal layer; and

A second polarizer is disposed on a side of the first substrate away from the liquid crystal layer.
The display device according to claim 14, wherein the backlight module is an edge-lit backlight module.