WO2023138246A1

WO2023138246A1 - Liquid crystal display panel and display device

Info

Publication number: WO2023138246A1
Application number: PCT/CN2022/137225
Authority: WO
Inventors: 胡晓刚; 袁海江
Original assignee: 惠科股份有限公司
Priority date: 2022-01-21
Filing date: 2022-12-07
Publication date: 2023-07-27
Also published as: CN114296268B; CN114296268A

Abstract

A liquid crystal display panel and a display device. The liquid crystal display panel comprises: a dual-cell liquid crystal structure and a driving unit assembly matching each other; the dual-cell liquid crystal structure comprises: a first array substrate (1) and a second array substrate (2) arranged at an interval; the first array substrate (1) has a first binding area; the second array substrate (2) has a second binding area; an orthographic projection of the first binding area on the second array substrate (2) and an orthographic projection of the second binding area on the second array substrate (2) do not shield each other; and the driving unit assembly is separately electrically connected to the first binding area and the second binding area. It can be ensured that after the binding of the first binding area is completed, when binding the second array substrate (2), the effect of the temperature and pressure generated in the binding process on the first binding area is avoided, thereby improving the processing efficiency and improving the yield, and a narrow border design can be realized.

Description

Liquid crystal display panel and display device

Cross References to Related Applications

This application claims priority to the Chinese patent application 202210072515.7 filed on January 21, 2022, entitled "Liquid Crystal Display Panel and Display Device", the entire content of which is incorporated herein by reference.

technical field

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

Background technique

At present, in order to improve the contrast of the display screen, the relevant technology adopts a double-layer liquid crystal cell display panel, the first liquid crystal cell is used for display, and the second liquid crystal cell is used for light control.

However, in the prior art, since the bonding area of the first array substrate shields the bonding area of the second array substrate, after the first array substrate is bonded, when the second array substrate is bonded, the temperature and pressure generated during the bonding process will affect the bonded area of the first array substrate that has been bonded.

Contents of the invention

The purpose of the present application is to provide a liquid crystal display panel and a display device to solve the technical problem in the prior art that the temperature and pressure generated during the bonding process will affect the bonding area where the first array substrate has been bonded when the liquid crystal display panel is bonded to the second array substrate after the first array substrate is bonded.

On the one hand, an embodiment of the present application proposes a liquid crystal display panel, comprising: a matched double-cell liquid crystal structure and a drive unit assembly. The double-cell liquid crystal structure includes: a first array substrate and a second array substrate arranged at intervals. The first array substrate has a first binding region, and the second array substrate has a second binding region.

On the other hand, the embodiment of the present application also provides a display device, including: a backlight module; and the liquid crystal display panel as described in any one of the foregoing, the liquid crystal display panel is installed on the light output side of the backlight module.

According to the liquid crystal display panel and the display device provided by the embodiments of the present application, the liquid crystal display panel specifically includes a matched double-cell liquid crystal structure and a drive unit assembly. The double-cell liquid crystal structure includes a first array substrate and a second array substrate arranged at intervals. The first array substrate has a first binding area, and the second array substrate has a second binding area. In the present application, through the cooperation of the above structures, it can be ensured that after the bonding of the first bonding region is completed, when the second array substrate is bonded, the temperature and pressure generated during the bonding process will not affect the first bonding region, thereby improving processing efficiency and yield, and realizing a narrow frame design.

Description of drawings

The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the figures, the same parts are given the same reference numerals. The attached drawings are not drawn in accordance with the actual scale, and are only used to illustrate the relative positional relationship. The layer thickness of some parts is drawn in an exaggerated way for easy understanding. The layer thickness in the attached drawing does not represent the proportional relationship of the actual layer thickness.

FIG. 1 is a schematic structural diagram showing a first array substrate according to Embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram showing a second array substrate according to Embodiment 1 of the present application;

FIG. 3 is a schematic structural diagram showing the cooperation between the first array substrate and the second array substrate according to Embodiment 1 of the present application;

FIG. 4 is a cross-sectional view showing a liquid crystal display panel in Embodiment 1 of the present application;

5 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 2 of the present application;

6 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 3 of the present application;

7 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 4 of the present application;

8 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 5 of the present application;

FIG. 9 is a schematic structural diagram of a liquid crystal display panel according to yet another embodiment of the present application;

FIG. 10 is a cross-sectional view of a display device according to one embodiment of the present application.

Explanation of reference signs:

1. The first array substrate; 2. The second array substrate; 3. The second liquid crystal layer; 4. The first liquid crystal layer; 5. Notch; 6. The first drive unit; 7. The second drive unit;

Detailed ways

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of domain structures may have been exaggerated. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

In order to solve the technical problem in the prior art that after the first array substrate is bound, when the second array substrate is bound, the temperature and pressure generated during the binding process will affect the bonding area where the first array substrate has been bonded. This application proposes a display device, which specifically includes: a backlight module 17 and a liquid crystal display panel.

The specific structure of the liquid crystal display panel provided by each embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Embodiment one

FIG. 1 is a schematic structural diagram illustrating the cooperation of a first array substrate 1 and a second array substrate 2 in Embodiment 1 of the present application; FIG. 4 is a cross-sectional view of a liquid crystal display panel in Embodiment 1 of the present application.

As shown in Figures 1 to 4, the embodiment of the present application provides a liquid crystal display panel, including a matched double-cell liquid crystal structure and a drive unit assembly. The double-cell liquid crystal structure includes a first array substrate 1 and a second array substrate 2 arranged at intervals.

The first array substrate 1 has a first binding area. Specifically, the first array substrate 1 includes a connected first display area and a first binding area. The first binding area is disposed at the end of the first display substrate, and a first pad area electrically connected to the drive unit assembly is disposed in the first binding area. The second array substrate 2 has a second binding area. Specifically, the second array substrate 2 includes a second display area and a second binding area connected to each other. The second binding area is disposed at the end of the second display substrate, and a second pad area electrically connected to the drive unit assembly is disposed in the second binding area.

More specifically, several first bonding pads are provided in the first bonding area, and several second bonding pads are provided in the second bonding area. Optionally, several first bonding pads and several second bonding pads are arranged at intervals along the length direction. Wherein, the orthographic projection of the first binding area on the second array substrate 2 and the orthographic projection of the second binding area on the second array substrate 2 do not block each other, and the drive unit components are electrically connected to the first binding area and the second binding area respectively.

In a specific embodiment, the driving unit assembly includes a first driving unit 6 and a second driving unit 7, the first driving unit 6 is electrically connected to the first pad region disposed in the first bonding region through the COF 12, and the second driving unit 7 is electrically connected to the second pad region disposed in the second bonding region through the COF 12. More specifically, the first drive unit 6 is electrically connected to several first pads through several chip-on-chip films 12 , and the second drive unit 7 is electrically connected to several second pads through several chip-on films 12 .

In the above embodiments, the second liquid crystal layer 3 is disposed between the first array substrate 1 and the second array substrate 2 , and the first liquid crystal layer 4 is disposed on the side of the first array substrate 1 away from the second liquid crystal layer 3 . Wherein, both the first liquid crystal layer 4 and the second liquid crystal layer 3 include a plurality of liquid crystal molecules, the liquid crystal molecules are usually rod-shaped, can flow like a liquid, and have certain crystal characteristics. When the liquid crystal molecules are in an electric field, their alignment direction will change according to the change of the electric field. Optionally, the first drive unit 6 is used to control the screen display, and the second drive unit 7 is used to control the brightness of the display panel, specifically to control the deflection angle of the second liquid crystal layer 3 according to different signals, so as to realize brightness control and further improve the contrast of the display panel.

To sum up, the design of this embodiment can ensure that after the bonding of the first bonding region is completed, the temperature and pressure generated during the bonding process will not affect the first bonding region when the second array substrate 2 is bonded, thereby improving processing efficiency and yield, and realizing a narrow border design.

In the above embodiment, the double-cell liquid crystal structure further includes a color filter substrate 8 opposite to the first array substrate 1 , and the color filter substrate 8 is disposed on a side of the first liquid crystal layer 4 away from the first array substrate 1 . Specifically, the side of the color filter substrate 8 facing the first liquid crystal layer 4 is provided with a first control electrode 13, the side of the first array substrate 1 facing the first liquid crystal layer 4 is provided with a second control electrode 14, an electric field is formed between the first control electrode 13 and the second control electrode 14, and the deflection of the liquid crystal molecules in the first liquid crystal layer 4 is controlled by controlling the intensity of the electric field, thereby realizing adjustment of the display screen.

Similarly, the side of the first array substrate 1 facing the second liquid crystal layer 3 is provided with a third control electrode 15, and the side of the second array substrate 2 facing the second liquid crystal layer 3 is provided with a fourth control electrode 16. An electric field is formed between the third control electrode 15 and the fourth control electrode 16, and the deflection of the liquid crystal molecules in the second liquid crystal layer 3 is controlled by controlling the strength of the electric field, so as to adjust the brightness of the display screen, and then realize the adjustment of the contrast of the display screen, and finally improve the display effect.

To sum up, the double-cell liquid crystal structure in this embodiment adopts the design of sharing the intermediate substrate, which can effectively reduce the thickness of the device, thereby reducing the spatial error.

Further, the side of the color filter substrate 8 facing away from the first liquid crystal layer 4 is provided with a first polarizer 10, and the side of the second array substrate 2 facing away from the second liquid crystal layer 3 is provided with a second polarizer 11. In addition, the side of the first array substrate 1 facing the first liquid crystal layer 4 is provided with an intermediate polarizing film layer 9; due to the optical path difference between the color filter substrate 8 and the first array substrate 1, the display effect is affected, and eventually the display panel becomes abnormal. Especially when the color filter substrate 8 and the first array substrate 1 are made of glass, the corresponding optical path difference is doubled; in order to solve this technical problem, this application adds the design of the intermediate polarizing film layer 9 to reduce the optical path difference and improve the display effect.

In summary, the color filter substrate 8, the first liquid crystal layer 4 and the first array substrate 1 constitute the first liquid crystal cell, and the first array substrate 1, the second liquid crystal layer 3 and the second array substrate 2 constitute the second liquid crystal cell. The structure of the present application can make the first liquid crystal cell and the second liquid crystal cell form a TN (Twisted Nematic) display mode or a VA (Vertical Alignment) display mode. As for other introductions of the TN display mode or the VA display mode, please refer to the prior art, and similar descriptions will not be repeated here.

It can be understood that the display modes of the first liquid crystal cell and the second liquid crystal cell may be the same or different. Exemplarily, the first liquid crystal cell may be in an IPS (In-Plane Switching) display mode, and the second liquid crystal cell may be in a TN display mode.

In order to solve the technical problem that the temperature and pressure generated during the binding process of the liquid crystal display panel in the prior art will affect the bonded area of the first array substrate 1 when the second array substrate 2 is bound after the first array substrate 1 is bound, this application adopts the method of rationally adjusting the placement positions of the first and second array substrates.

As shown in FIG. 9, in one specific embodiment of the present application, the first binding region and the second binding region are located on the same side of the double-cell liquid crystal structure, the first binding region is set on the side of the first array substrate 1 facing the first liquid crystal layer 4, the second binding region is set on the side of the second array substrate 2 facing the second liquid crystal layer 3, and the length of the first array substrate 1 is set to be smaller than the length of the second array substrate 2, so that the first binding region and the second binding region do not block each other. The design of this embodiment can ensure that after the binding of the first binding region is completed, the binding process is avoided when the second array substrate 2 is bound. The temperature and pressure generated in the process will affect the first bonding area, thereby improving processing efficiency and improving yield.

The design of the above embodiments will increase the frame width of the display panel. In order to reduce the frame width of the display panel and realize the narrow frame design, this application proposes a new embodiment, as shown in FIGS. 1 to 4 . In this embodiment, the length of the first array substrate 1 and the length of the second array substrate 2 are designed to be equal, the orthographic projection of the first binding region on the second array substrate 2 and the orthographic projection of the second binding region on the second array substrate 2 do not block each other, and the orthographic projection of the first binding region on the second array substrate 2 is flush with the orthographic projection of the second binding region on the second array substrate 2, so that the first binding region and the second binding region are staggered on the same side of the double-cell liquid crystal structure.

In summary, with the design of this embodiment, there is a gap between the orthographic projection of the first binding area on the second array substrate 2 and the orthographic projection of the second binding area on the second array substrate 2, and the size of the gap can be adjusted according to the temperature and pressure generated during the binding process, thereby further reducing the mutual interference between the binding process of the first array substrate 1 and the binding process of the second array substrate 2.

Further, a notch 5 is formed on at least the first array substrate 1 , and when the first array substrate 1 and the second array substrate 2 are aligned, the second binding region is exposed through the notch 5 . In a specific embodiment, the gap 5 is only formed on the first array substrate 1 .

More specifically, as shown in FIG. 1 to FIG. 3 , the notch 5 is opened on the right side of the first array substrate 1 , and at this time only the first binding region is provided on the left side of the first array substrate 1 . Correspondingly, a second binding region is formed on the second array substrate 2 at a position corresponding to the notch 5 . Specifically, the second binding area is formed on the right side of the second array substrate 2, so as to ensure that the second binding area can be exposed through the gap 5 after the first array substrate 1 and the second array substrate 2 are mounted in alignment. To sum up, the design of this embodiment can realize simultaneous binding of the first array substrate 1 and the second array, thereby further improving the processing efficiency. In addition, compared with related technologies, the design of this embodiment can effectively reduce the frame width of the display panel; and, the present application can effectively reduce the processing cost by forming only a part of the binding area on each array substrate.

In another specific embodiment, as shown in FIGS. 1 to 3 , a first notch 5 is formed on the first array substrate 1 , and a second notch 5 is formed on the second array substrate 2 . More specifically, as shown in FIG. 1 , the first notch 5 is opened on the right side of the first array substrate 1, and at this time, there is a first binding area on the left side of the first array substrate 1. Correspondingly, the second notch 5 is opened on the left side of the second array substrate 2, and at this time, there is a second binding area on the right side of the second array substrate 2. Optionally, the first binding region and the second binding region are equal in size.

Exemplarily, the length range of the first binding area and the second binding area is: 0.5 mm-3.5 mm, so as to ensure that after the first array substrate 1 and the second array substrate 2 are mounted in alignment, the first binding area corresponds to the position of the second notch 5, and the second binding area can be exposed through the first notch 5, thereby further reducing the processing cost.

In order to further prevent temperature from affecting the corresponding binding effect between the first array substrate 1 and the second array substrate 2, a layer of thermally conductive coating can be coated on the side of the first array substrate 1 facing the second liquid crystal layer 3 corresponding to the second binding region, and the thermally conductive coating can be made of a thermally conductive material. After the bonding of the first array substrate 1 is completed, when the second array substrate 2 is bonded, the thermally conductive coating can conduct away the heat conducted to the first array substrate 1, thereby further reducing the impact on the first bonding area, thereby improving processing efficiency and product yield.

Embodiment two

FIG. 5 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 2 of the present application.

The embodiment of the present application also provides a liquid crystal display panel, which is similar in structure to the liquid crystal display panel in Embodiment 1, except that the first binding region and the second binding region are located on the same side of the double-cell liquid crystal structure, the first binding region is disposed on the side of the first array substrate 1 facing the first liquid crystal layer 4, and the second binding region is disposed on the side of the second array substrate 2 facing away from the second liquid crystal layer 3. After the binding of the first array substrate 1 is completed, the entire liquid crystal display panel can be turned upside down so that the second binding area faces the operator, so that it is convenient for the operator to perform binding operation on the second array substrate 2. To sum up, the design of this embodiment can ensure that the temperature and pressure generated during the bonding process will not affect the first bonding region when the second array substrate 2 is bonded after the bonding of the first bonding region is completed, thereby improving processing efficiency and yield.

Embodiment three

FIG. 6 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 3 of the present application.

The embodiment of the present application also provides a liquid crystal display panel, which is similar to the structure of the liquid crystal display panel in Embodiment 2. The difference is that the drive unit assembly is configured as a circuit board (PCB) 18, and a first drive area and a second drive area are formed on the circuit board 18. The first drive area is electrically connected to the first pad area; the second drive area is electrically connected to the second pad area. Specifically, the first drive area is electrically connected to several first pads through several chip-on-chip films 12 , and the second drive area is electrically connected to several second pads through several chip-on films 12 . To sum up, in this embodiment, the design of setting the drive unit assembly as one circuit board 18 can effectively save the processing cost.

Embodiment four

FIG. 7 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 4 of the present application.

The embodiment of the present application also provides a liquid crystal display panel, which is similar in structure to the liquid crystal display panel in Embodiment 1, except that the first binding region and the second binding region are located on different sides of the double-cell liquid crystal structure, the first binding region is arranged on the side of the first array substrate 1 facing the first liquid crystal layer 4, and the second binding region is arranged on the side of the second array substrate 2 facing away from the second liquid crystal layer 3.

In another specific embodiment, the first binding area is set on the side of the first array substrate 1 facing the first liquid crystal layer 4 , and the second binding area is set on the side of the second array substrate 2 facing the second liquid crystal layer 3 .

In yet another specific embodiment, the first binding area is set on the side of the first array substrate 1 away from the first liquid crystal layer 4 , and the second binding area is set on the side of the second array substrate 2 away from the second liquid crystal layer 3 .

Exemplarily, the first binding area is set on the side of the first array substrate 1 facing the first liquid crystal layer 4, and the second binding area is set on the side of the second array substrate 2 facing away from the second liquid crystal layer 3. After the binding of the first array substrate 1 is completed, the entire liquid crystal display panel can be turned upside down so that the second binding area faces the operator, so that it is convenient for the operator to perform binding operations on the second array substrate 2.

Embodiment five

FIG. 8 is a cross-sectional view showing a liquid crystal display panel according to Embodiment 5 of the present application.

The embodiment of the present application also provides a liquid crystal display panel, which is similar in structure to the liquid crystal display panel in Embodiment 1. The difference is that at least one of the first binding region and the second binding region is formed on the side of the double-cell liquid crystal structure;

In another specific embodiment, the first binding region is disposed on the side surface of the first array substrate 1, and is electrically connected to the first driving unit 6 through the COF 12; the second binding region is disposed on the side of the second array substrate 2 away from the second liquid crystal layer 3, and is electrically connected to the second driving unit 7 through the COF 12.

To sum up, in Embodiment 2 to Embodiment 5, only a part of the binding region can be formed on each array substrate, so that the processing cost can be effectively reduced.

It should be noted that the display panel in the present application only shows some of the structures and components mentioned above, but is not limited thereto. Exemplarily, the array substrate includes: a base substrate and criss-cross scan lines and data lines arranged on the base substrate, the scan lines and data lines enclose pixel units, thin film transistors, pixel electrodes and other structures arranged in the pixel units. The color filter substrate 8 is provided with structures such as a black matrix, a color filter layer, a transparent protective layer, and spacers. The liquid crystal display panel also includes various other display components, for example, an alignment film and frame glue are arranged between the first array substrate 1 and the color filter substrate 8 . These details can be implemented with reference to the prior art, and will not be described in detail here.

It should be readily understood that the terms "on", "above" and "on" in this application should be interpreted in the broadest possible way, so that "on" not only means "directly on" but also includes the meaning of "on" with intervening features or layers in between, and "on" or "on" not only includes the meaning of "above" or "over" but also includes "on" or "on" without intervening features or layers (i.e., directly on something).

As used herein, the term "substrate substrate" refers to a material onto which subsequent layers of material are added. The base substrate itself can be patterned. Materials added on top of the base substrate can be patterned, or can remain unpatterned. In addition, the substrate substrate may comprise a wide range of materials such as silicon, germanium, gallium arsenide, indium phosphide, and the like. Alternatively, the base substrate may be made of non-conductive material (eg, glass, plastic, or sapphire wafer, etc.).

The term "layer" as used herein may refer to a portion of material comprising a region having a certain thickness. A layer may extend over the entirety of the underlying or overlying structure, or may have an extent that is less than the extent of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure having a thickness less than the thickness of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure or between any pair of transverse planes at the top and bottom surfaces. Layers may extend laterally, vertically and/or along the tapered surface. Substrate A substrate may be a layer, may include one or more layers therein, and/or may have one or more layers located thereon, above, and/or below. Layers may include multiple layers. For example, interconnect layers may include one or more conductor and contact layers (in which contacts, interconnect lines, and/or vias are formed) and one or more dielectric layers.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

A liquid crystal display panel, comprising a matched double-cell liquid crystal structure and a drive unit assembly, the double-cell liquid crystal structure includes a first array substrate and a second array substrate arranged at intervals, the first array substrate has a first binding region, and the second array substrate has a second binding region, wherein,

The orthographic projection of the first binding area on the second array substrate and the orthographic projection of the second binding area on the second array substrate do not block each other, and the drive unit assembly is electrically connected to the first binding area and the second binding area respectively.
The liquid crystal display panel according to claim 1, wherein a second liquid crystal layer is disposed between the first array substrate and the second array substrate, and a first liquid crystal layer is disposed on a side of the first array substrate away from the second liquid crystal layer.
The liquid crystal display panel according to claim 2, wherein the first binding region and the second binding region are located on the same side of the double-cell liquid crystal structure.
The liquid crystal display panel according to claim 2, wherein the first binding region and the second binding region are located on different sides of the double-cell liquid crystal structure.
The liquid crystal display panel according to claim 3, wherein the first binding region is disposed on a side of the first array substrate facing the first liquid crystal layer, the second binding region is disposed on a side of the second array substrate facing the second liquid crystal layer, and the orthographic projection of the first binding region on the second array substrate is flush with the orthographic projection of the second binding region on the second array substrate.
The liquid crystal display panel according to claim 5, wherein a notch is formed on at least the first array substrate, the first array substrate and the second array substrate are arranged in alignment, and the second binding region is exposed through the notch.
The liquid crystal display panel according to claim 3, wherein the first binding region is disposed on a side of the first array substrate facing the first liquid crystal layer, and the second binding region is disposed on a side of the second array substrate facing away from the second liquid crystal layer.
The liquid crystal display panel according to claim 3, wherein at least one of the first binding region and the second binding region is formed on a side of the double-cell liquid crystal structure.
The liquid crystal display panel according to claim 7, wherein a first pad area electrically connected to the drive unit assembly is provided in the first binding area, a second pad area electrically connected to the drive unit assembly is provided in the second binding area, the drive unit assembly is provided as a circuit board, a first drive area and a second drive area are formed on the circuit board, the first drive area is electrically connected to the first pad area, and the second drive area is electrically connected to the second pad area.
The liquid crystal display panel according to claim 2, wherein the double-cell liquid crystal structure further includes a color filter substrate and an intermediate polarizing film layer, the color filter substrate is disposed on a side of the first liquid crystal layer away from the first array substrate, and the intermediate polarizing film layer is disposed on a side of the first array substrate facing away from the second liquid crystal layer.
The liquid crystal display panel according to claim 5, wherein the length of the first array substrate is less than or equal to the length of the second array substrate.
The liquid crystal display panel according to claim 6, wherein the length range of the first binding region and the second binding region is: 0.5mm-3.5mm.
The liquid crystal display panel according to claim 2, wherein the side of the first array substrate facing the second liquid crystal layer and corresponding to the second binding region is coated with a thermally conductive coating, and the thermally conductive coating is made of a thermally conductive material.
The liquid crystal display panel according to claim 10, wherein a first control electrode is provided on a side of the color filter substrate facing the first liquid crystal layer, a second control electrode is provided on a side of the first array substrate facing the first liquid crystal layer, and an electric field is formed between the first control electrode and the second control electrode.
The liquid crystal display panel according to claim 10, wherein a first polarizer is provided on a side of the color filter substrate away from the first liquid crystal layer, and a second polarizer is provided on a side of the second array substrate away from the second liquid crystal layer.
A display device comprising:

backlight module; and

The liquid crystal display panel according to any one of claims 1-15, wherein the liquid crystal display panel is arranged on the light emitting side of the backlight module.