CN117555182A

CN117555182A - Display panel and display device

Info

Publication number: CN117555182A
Application number: CN202311469766.XA
Authority: CN
Inventors: 王盼; 凌安恺; 沈柏平; 洪津津
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2024-02-13

Abstract

The invention discloses a display panel and a display device, which belong to the technical field of display, wherein the display panel comprises a first liquid crystal box and a second liquid crystal box, and the first liquid crystal box comprises a first array substrate and a first opposite substrate which are oppositely arranged along the thickness direction of the display panel; the second liquid crystal box comprises a second array substrate and a second opposite substrate which are oppositely arranged; the first opposite substrate comprises a color resistance layer and a shading matrix, and the color resistance layer and the shading matrix are respectively arranged on one side of the first opposite substrate facing the first array substrate; wherein the light transmittance of the second counter substrate is greater than the light transmittance of the first counter substrate; the first array substrate and the second array substrate have the same structure, and one side of the first opposite substrate, which is far away from the first array substrate, is a light emitting surface of the display panel. The display device comprises a backlight module and the display panel. The invention not only can improve the contrast ratio, but also can improve the moire phenomenon, thereby being beneficial to improving the display quality.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and more particularly, to a display panel and a display device.

Background

The liquid crystal display (Liquid Crystal Display, LCD) has advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation, relatively low manufacturing cost, etc., and has been widely used in various electronic devices such as tablet computers, televisions, mobile phones, and vehicle-mounted display areas.

As customer experience demands are increasing, as well as special demands for special applications, higher demands are being placed on display quality, for example, dual screen display devices are emerging for improved contrast. Compared with a liquid crystal display panel adopting a backlight module, the double-screen display device controls the light inlet quantity of the color panel through the dimming panel, reduces black brightness to the maximum extent, achieves higher visual angle contrast ratio than the traditional single-color display panel, can effectively reduce cost under the condition of improving display effect, and has great market potential. However, the current double-screen display device can generate moire phenomenon visible to human eyes, and the display effect is affected.

Therefore, it is a technical problem to be solved by those skilled in the art to provide a display panel and a display device capable of improving moire phenomenon in the dual-screen display technology and facilitating improvement of display quality.

Disclosure of Invention

In view of the above, the present invention provides a display panel and a display device, so as to solve the problem that moire is easily generated due to interference of light paths in a dual-screen display device, thereby affecting the display effect.

The invention discloses a display panel, which comprises a first liquid crystal box and a second liquid crystal box, wherein the first liquid crystal box and the second liquid crystal box are oppositely arranged along the thickness direction of the display panel, and the first liquid crystal box comprises a first array substrate and a first opposite substrate which are oppositely arranged along the thickness direction of the display panel; the second liquid crystal box comprises a second array substrate and a second opposite substrate which are oppositely arranged; the first opposite substrate comprises a color resistance layer and a shading matrix, and the color resistance layer and the shading matrix are respectively arranged on one side of the first opposite substrate facing the first array substrate; wherein the light transmittance of the second counter substrate is greater than the light transmittance of the first counter substrate; the first array substrate and the second array substrate have the same structure, and one side of the first opposite substrate, which is far away from the first array substrate, is a light emitting surface of the display panel.

Based on the same inventive concept, the invention also discloses a display device, which comprises a backlight module and the display panel; the backlight module is positioned at one side of the display panel, which is away from the light emergent surface of the display panel.

Compared with the prior art, the display panel and the display device provided by the invention have the advantages that at least the following effects are realized:

the display panel provided by the invention comprises a first liquid crystal box and a second liquid crystal box which are oppositely arranged along the thickness direction of the display panel, wherein the first liquid crystal box comprises a first array substrate and a first opposite substrate which are oppositely arranged, the second liquid crystal box comprises a second array substrate and a second opposite substrate which are oppositely arranged, and the first liquid crystal box and the second liquid crystal box are overlapped to form a double-liquid crystal box display panel structure. According to the invention, the double-screen display panel is designed through the overlapped structure of the double liquid crystal boxes, so that the contrast ratio of a display product can be greatly improved, the product competitiveness is greatly improved, the first liquid crystal box is used for display, the second liquid crystal box is used for dimming control, and when the first liquid crystal box and the second liquid crystal box are both in a dark state, the brightness of the dark state can be greatly reduced, so that the contrast ratio is improved. The invention also makes the light transmittance of the second opposite substrate larger than that of the first opposite substrate, and by reducing or not arranging the light shielding structure or other structures which are easy to influence the light transmittance in the second opposite substrate, the light transmittance of the second opposite substrate is increased, so that the structure difference of the first liquid crystal box and the second liquid crystal box is increased, the frequency of the periodic space structure of the first liquid crystal box and the second liquid crystal box is destroyed, the possibility of generating interference lines is reduced, the occurrence of moire is avoided, the display quality is improved, the light transmittance of the second opposite substrate is increased, the aperture ratio of each dimming pixel in the second liquid crystal box is increased, the light transmittance of the whole display panel is greatly increased, namely the white state brightness is greatly increased, and the contrast ratio of the display panel is equal to the ratio of the white state brightness to the black state brightness. Therefore, the invention can greatly improve the whole contrast of the display panel by increasing the light transmittance of the second opposite substrate while maximally reducing the black state brightness through the design of the double liquid crystal boxes, thereby better improving the display quality. According to the invention, the arrangement area of the shading structure or other structures which are easy to influence light transmission in the second opposite substrate is reduced or not arranged, so that the frequency of the periodic space structures of the first liquid crystal box and the second liquid crystal box can be broken, the structure generated by moire is avoided, the moire can be effectively improved, the periodic space frequency is broken without changing other structural designs of the liquid crystal boxes to make differential designs, the improvement of the process efficiency is facilitated, and the manufacturing cost is saved.

Of course, it is not necessary for any one product to practice the invention to achieve all of the technical effects described above at the same time.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 in the direction A-A';

FIG. 3 is a schematic view of another cross-sectional structure in the direction A-A' of FIG. 1;

FIG. 4 is a schematic view of another cross-sectional structure in the direction A-A' of FIG. 1;

FIG. 5 is a schematic view of another cross-sectional structure in the direction A-A' of FIG. 1;

fig. 6 is a plan structure comparison diagram of the first and second counter substrates of fig. 3;

FIG. 7 is a plan view of the first array substrate and the second array substrate of FIG. 3;

fig. 8 is a schematic plan view of a display device according to an embodiment of the present invention;

fig. 9 is a schematic view of a cross-sectional structure in the direction B-B' in fig. 8.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims (the claims) and their equivalents. The embodiments provided by the embodiments of the present invention may be combined with each other without contradiction.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 and 2 in combination, fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of A-A' in fig. 1 (it can be understood that, since fig. 1 is a schematic plan view of the display panel, the stacked first liquid crystal cell and second liquid crystal cell only illustrate a substrate structure of the first liquid crystal cell on a side close to a light emitting surface of the display panel, and the rest of the structure such as the structure of the second liquid crystal cell can be understood through the cross-sectional view of fig. 2), the display panel 000 provided in this embodiment includes the first liquid crystal cell 10 and the second liquid crystal cell 20, the first liquid crystal cell 10 and the second liquid crystal cell 20 are oppositely disposed along a thickness direction Z of the display panel 000, and the first liquid crystal cell 10 includes a first array substrate 10A and a first opposite substrate 10B oppositely disposed along the thickness direction Z of the display panel 000; the second liquid crystal cell 20 includes a second array substrate 20A and a second counter substrate 20B disposed opposite to each other;

the first opposite substrate 10B includes a color resist layer 10B2 and a light shielding matrix 10B3, and the color resist layer 10B2 and the light shielding matrix 10B3 are respectively disposed on a side of the first opposite substrate 10B facing the first array substrate 10A; wherein,

The light transmittance of the second counter substrate 20B is greater than that of the first counter substrate 10B;

the first array substrate 10A and the second array substrate 20A have the same structure, and a side of the first opposite substrate 10B away from the first array substrate 10A is the light emitting surface 000E of the display panel 000.

Specifically, the display panel 000 provided in this embodiment includes two liquid crystal cells, namely, a first liquid crystal cell 10 and a second liquid crystal cell 20 disposed opposite to each other in the thickness direction Z of the display panel 000, wherein the first liquid crystal cell 10 includes a first array substrate 10A and a first counter substrate 10B disposed opposite to each other, and the second liquid crystal cell 20 includes a second array substrate 20A and a second counter substrate 20B disposed opposite to each other, that is, the first liquid crystal cell 10 and the second liquid crystal cell 20 may be stacked to form a dual-cell display panel 000 structure. In the structure of the display panel 000 formed by the double liquid crystal cells, the side of the first counter substrate 10B of the first liquid crystal cell 10 away from the first array substrate 10A is the light exit surface 000E of the display panel 000, that is, the side of the first liquid crystal cell 10 away from the second liquid crystal cell 20 is understood as the light exit surface 000E of the display panel 000, and the light exit surface 000E of the display panel 000 can be understood as the surface on which light is emitted for displaying a picture.

When the side of the first liquid crystal cell 10 away from the second liquid crystal cell 20 is the light exit face 000E of the display panel 000, the second liquid crystal cell 20 located below the first liquid crystal cell 10 may be understood as a liquid crystal dimming panel for controlling the liquid crystal deflection to achieve dimming in the display panel 000, and the first liquid crystal cell 10 located above the second liquid crystal cell 20 may be understood as a display panel for controlling the liquid crystal deflection to achieve display in the display panel 000.

According to the embodiment, the dual-screen display panel is designed through the stacked structure of the dual liquid crystal boxes, so that the contrast ratio of a display product can be greatly improved, the product competitiveness is greatly improved, the first liquid crystal box 10 is used for display, the second liquid crystal box 20 is used for dimming control, and the brightness of the dark state can be greatly reduced when the first liquid crystal box 10 and the second liquid crystal box 20 are both in the dark state, so that the contrast ratio is improved.

In the first liquid crystal cell 10 of the present embodiment, the first array substrate 10A may be understood as a substrate for setting structures such as a driving circuit, a signal wiring, a thin film transistor, etc., and alternatively, the first array substrate 10A may include a first substrate 10A1 and structures such as a metal conductive layer on one side of the first substrate 10A1 for setting structures such as a driving circuit, a thin film transistor, etc., a transparent electrode layer (not filled in the drawing) for setting pixel electrodes and a common electrode; the first counter substrate 10B may be understood as a substrate that forms the first liquid crystal cell 10 by being encapsulated with the first array substrate 10A, and a plurality of liquid crystal molecules may be included between the first counter substrate 10B and the first array substrate 10A to form the first liquid crystal layer 10C of the first liquid crystal cell 10. Alternatively, the first counter substrate 10B may include a second substrate 10B1, and the color resist layer 10B2 and the light shielding matrix 10B3 included in the first counter substrate 10B may be disposed on a side of the second substrate 10B1 facing the first array substrate 10A, that is, the first counter substrate 10B may be understood as a color film substrate for disposing a color resist (color film) layer of the first liquid crystal cell 10; the light shielding matrix 10B3 may be a black matrix structure, and the color blocking layers 10B2 include a plurality of color blocking blocks 10B21 of different colors located in the hollow area of the light shielding matrix 10B3 of the black matrix structure, so that shielding between the adjacent color blocking blocks 10B21 of different colors is realized through the light shielding matrix 10B3, and color crosstalk is avoided.

It should be understood that, in this embodiment, the film structure included in the first array substrate 10A and the film structure included in the first opposite substrate 10B are not limited in particular, for example, the first substrate 10A1 side of the first array substrate 10A may further include a plurality of insulating layers, buffer layers, planarization layers, and the like, and the first opposite substrate 10B may further include a protective layer or the like on the side of the color resist layer 10B2 and the light shielding matrix 10B3 away from the second substrate 10B1, and may be understood with reference to the structure of the display liquid crystal cell in the related art. It should be understood that, in the present embodiment, specific materials of the first substrate 10A1 and the second substrate 10B1 are not limited, and may be hard materials such as glass and ceramic, or other materials, and may be selected according to practical requirements when implemented.

In the second liquid crystal cell 20 of the present embodiment, the second array substrate 20A has the same structure as the first array substrate 10A, that is, the second liquid crystal cell 20 for dimming also includes the second array substrate 20A provided with a driving circuit, a signal trace, and the like. The second array substrate 20A has the same structure as the first array substrate 10A, and during the process, the second array substrate 20A in the second liquid crystal cell 20 for dimming can be produced simultaneously with the first array substrate 10A in the first liquid crystal cell 10 without being distinguished, so that the process efficiency can be greatly improved. The second array substrate 20A may be understood as a substrate for disposing a driving circuit, a signal trace, a thin film transistor, and the like in the second liquid crystal cell 20, and optionally, the second liquid crystal cell 20 may include a third substrate 20A1, and a metal conductive layer, a transparent electrode layer (not filled in the figure), and the like on one side of the third substrate 20A 1; the second counter substrate 20B may be understood as a substrate that forms the second liquid crystal cell 20 in a package with the second array substrate 20A, and a plurality of liquid crystal molecules may be included between the second counter substrate 20B and the second array substrate 20A to form the second liquid crystal layer 20C of the second liquid crystal cell 10. The second opposite substrate 20B may include a fourth substrate 20B1, and the fourth substrate 20B1 may be glass or other materials, which is not limited in this embodiment. Because the second liquid crystal box 20 is used for controlling the deflection of liquid crystal molecules, so as to control the light entering amount of the first liquid crystal box 10, reduce the black state brightness to the maximum extent, and realize higher visual angle contrast than the traditional single color display panel, the second array substrate 20A of the second liquid crystal box 20 and the first array substrate 10A have the same structure, and the second array substrate 20A and the first array substrate 10A can be manufactured by the same process and by the same mask plate and other materials, thereby being beneficial to greatly saving manufacturing cost, reducing manufacturing difficulty and improving manufacturing efficiency.

It should be understood that the display principle of the liquid crystal display cell is not specifically described in detail in this embodiment, generally, the first liquid crystal cell 10 in this embodiment includes a first counter substrate 10B and a first array substrate 10A that are disposed opposite to each other, and a first liquid crystal layer 10C between the first counter substrate 10B and the first array substrate 10A, where the first counter substrate 10B is provided with a color blocking layer 10B2 and a light shielding matrix 10B3 on a side near the first array substrate 10A, and an electric field between a pixel electrode and a common electrode (which may be disposed on the first array substrate 10A or the pixel electrode is disposed on the first array substrate 10A, and the common electrode is disposed on the first counter substrate 10B, which is not limited in this embodiment) in the first liquid crystal cell 10 can deflect liquid crystal molecules of the first liquid crystal layer 10C. The light generated by the backlight assembly firstly passes through the second liquid crystal cell 20, and the degree of deflection of the liquid crystal molecules of the second liquid crystal layer 20C in the second liquid crystal cell 20 can be different by adjusting the magnitude of the electric field between the pixel electrode and the common electrode in the second liquid crystal cell 20, so as to control the light entering the first liquid crystal cell 10. The different light entering into the first liquid crystal box 10 is controlled by the second liquid crystal box 20, so that the light entering into the first liquid crystal box 10 is different, and then the degree of deflection of the liquid crystal molecules of the first liquid crystal layer 10C in the first liquid crystal box 10 is different in cooperation with the electric field between the pixel electrode and the common electrode in the first liquid crystal box 10, and the light transmittance of the final display panel 000 is different, and the light quantity of the backlight assembly penetrating through the first liquid crystal box 10 is different under the control of the second liquid crystal box 20, so that the display of images is realized.

It should be noted that, in this embodiment, only the film structure of the liquid crystal cell included in the display panel 000 is illustrated, and in specific implementation, the display panel 000 of the dual liquid crystal cell of this embodiment includes, but is not limited to, the above structure, and may also include other film structures, such as a polarizer, and the like, to realize the display of the picture through the combined action, which is not specifically described herein, and may be understood with reference to the film structure of the liquid crystal cell for display in the related art.

The existing double-liquid-crystal-box display equipment can generate a moire phenomenon visible to human eyes, and the display effect is affected. Because the stacked structure of the double liquid crystal boxes has a periodic structure, interference lines, namely mole lines, are easy to generate, the mole lines are visual results of interference between two lines or two objects at constant angles and frequencies, if eyes cannot distinguish the two lines or the two objects, only interference patterns can be seen, and the patterns in the optical phenomenon are the mole lines, the contrast of a display picture is easy to be reduced, and the display quality is influenced.

The inventor researches and discovers that in the existing stacked structure of the double liquid crystal boxes, the periodic structure which is easy to generate interference lines exists in the film layer structure of the two liquid crystal boxes, mainly because the pixel space frequency of the first liquid crystal box and the pixel space frequency of the second liquid crystal box is close, and the pixel space frequency mainly refers to the arrangement frequency of the shading structures in different liquid crystal boxes. Although there are many technical schemes for improving the moire pattern in the related art, such as differential design of pixel electrodes of the dual liquid crystal boxes or differential design of appearance of pixel units of the dual liquid crystal boxes, the various improvements all need to make large-scale changes on the structure of the liquid crystal boxes, which is not beneficial to improving the process efficiency and reducing the manufacturing cost.

To solve the above problems, the present embodiment provides the second opposite substrate 20B with a light transmittance greater than that of the first opposite substrate 10B, and the improvement of the light transmittance can be achieved mainly by reducing or not providing the light shielding structure or other layout area of the light transmittance structure that is easily affected in the second opposite substrate 20B; alternatively, the second counter substrate 20 may not include or reduce the light shielding structure, for example, a black matrix, or may not include or reduce the color block in the second counter substrate 20, for example, the color block layer and the light shielding matrix of the second liquid crystal cell 20 may still be disposed in the film layer structure of the fourth substrate 20B1 facing the side of the second array substrate 20A, but the layout area of the light shielding structure in the light shielding matrix of the second liquid crystal cell 20 needs to be reduced, or other manners of not providing the light shielding structure or other structures that easily affect the light transmittance may be used. In this embodiment, the arrangement area of the light shielding structure or other structure that is easy to affect the light transmission in the second opposite substrate 20B is reduced or not provided, so as to increase the light transmittance of the second opposite substrate 20B, so that the light transmittance of the second opposite substrate 20B is greater than that of the first opposite substrate 10B, the structure of the first liquid crystal cell 10 and the second liquid crystal cell 20 is differentiated, the frequency of the periodic spatial structure of the first liquid crystal cell 10 and the second liquid crystal cell 20 is damaged, the possibility of generating interference lines is reduced, the occurrence of moire is avoided, the display quality is improved, and the light transmittance of the second opposite substrate 20B is increased, so that the aperture ratio of each dimming pixel in the second liquid crystal cell 20 is improved, and the light transmittance of the whole display panel 000 is greatly improved, that is, the white state brightness is greatly improved, and the contrast ratio of the display panel 000 is equal to the white state brightness and the black state brightness. Therefore, the black state brightness is reduced to the maximum extent by the design of the dual liquid crystal cells, and the overall contrast of the display panel 000 is improved greatly by increasing the light transmittance of the second opposite substrate 20B, so as to improve the display quality better.

In addition, in this embodiment, the arrangement area of the light shielding structure or other structures that easily affect the light transmission in the second opposite substrate 20B is reduced or not provided, so as to increase the light transmittance of the second opposite substrate 20B, so that the light transmittance of the second opposite substrate 20B is greater than that of the first opposite substrate 10B, the frequency of the periodic spatial structures of the first liquid crystal cell 10 and the second liquid crystal cell 20 is broken, the structure generated by moire is avoided, not only the moire can be effectively improved, but also the periodic spatial frequency is broken without changing other structural designs of the liquid crystal cell to make differential designs, which is beneficial to improving the process efficiency and saving the manufacturing cost.

Alternatively, as shown in fig. 1 and 2, in the present embodiment, the color blocking layer and the light shielding matrix on the side of the second opposite substrate 20B facing the second array substrate 20A are disposed in a space, and only the first opposite substrate 10B of the first liquid crystal cell 10 near the light emitting surface 000E of the display panel 000 includes the light shielding matrix and the color blocking layer.

In fig. 2 of the present embodiment, only the second counter substrate 20B is provided with no light shielding structure, such as no light shielding matrix and no color resist layer, and the second counter substrate 20B includes only the fourth substrate 20B1 having good light transmittance and other structures such as a protective layer and an alignment film having good light transmittance, so that the frequency of the periodic spatial structures of the first liquid crystal cell 10 and the second liquid crystal cell 20 is broken, and the light transmittance of the second counter substrate 20B is improved.

Alternatively, as shown in fig. 1 and 3, fig. 3 is a schematic view of another cross-sectional structure in the direction A-A' in fig. 1, where the display panel 000 of the present embodiment includes stacked first and second liquid crystal cells 10 and 20, the first liquid crystal cell 10 may include a plurality of display pixel units 100, the first array substrate 10A may include a first substrate 10A1, a plurality of first metal conductive layers 10A2 (such as a gate metal layer for providing a gate of a thin film transistor, a source-drain metal layer for providing a source-drain electrode of a thin film transistor, other metal layers), a first pixel electrode layer 10A3 (for providing a first pixel electrode 10A31 corresponding to the display pixel unit 100), a first common electrode layer 10A4 (for providing a first common electrode 10A41 for forming a liquid crystal molecule deflection driving the first liquid crystal layer 10C with the first pixel electrode 10A 31), other respective insulating layers or protective layers, and so on; the first opposite substrate 10B may include a second substrate 10B1, a color blocking layer 10B2, and a light shielding matrix 10B3, the light shielding matrix 10B3 may be a black matrix structure, the color blocking layer 10B2 includes a plurality of color blocking blocks 10B21 with different colors located in a hollow area of the light shielding matrix 10B3 of the black matrix structure, and further shielding between adjacent color blocking blocks 10B21 with different colors is achieved through the light shielding matrix 10B3, so as to avoid color crosstalk, and the color blocking blocks 10B21 may correspond to the display pixel units 100 one by one.

The second liquid crystal cell 20 may include a plurality of light control pixel units 200, and the second array substrate 20A may include a third substrate 20A1, a plurality of second metal conductive layers 20A2 (e.g., a gate metal layer for providing a thin film transistor gate, a source drain metal layer for providing a source drain of a thin film transistor gate, other metal layers), a second pixel electrode layer 20A3 (for providing a second pixel electrode 20A31 corresponding to the light control pixel unit 200), a second common electrode layer 20A4 (for providing a second common electrode 20A41 for forming a liquid crystal molecule deflection driving the second liquid crystal layer 20C with the second pixel electrode 20A 31), other respective insulating layers or protective layers, and the like; the second counter substrate 20B may include a fourth substrate 20B1, i.e., the second counter substrate 20B does not include a light shielding matrix and a color blocking layer to break up the periodic spatial frequency of the first and second liquid crystal cells 10 and 20 while increasing the light transmittance, avoiding moire.

It can be understood that the display pixel unit 100 of the first liquid crystal cell 10 and the light control pixel unit 200 of the second liquid crystal cell 20 in this embodiment may be correspondingly consistent, that is, one display pixel unit 100 and one light control pixel unit 200 overlap with each other in the thickness direction Z of the display panel 000, so that the pixel density of the first liquid crystal cell 10 and the pixel density of the second liquid crystal cell 20 are consistent as much as possible, so as to achieve the effect of effectively improving the white brightness of the display panel 000 after the two are overlapped, and further facilitate improving the contrast ratio.

It should be noted that, fig. 3 of the present embodiment is only an example illustrating the film structures of the first array substrate 10A and the second array substrate 20A in the first liquid crystal cell 10 and the second liquid crystal cell 20, the structure of the driving circuit disposed by the plurality of metal conductive layers may be understood by referring to the structure of the related liquid crystal display panel, and the embodiment is not described in detail herein, and the film structure of the array substrate may include, but is not limited to, this but may also be other disposed structures, such as the positions of the pixel electrode layer and the common electrode layer may be interchanged, the number of the plurality of metal conductive layers may be more, and may also include a semiconductor layer, etc., and the embodiment is not described herein, and only needs to satisfy that the second counter substrate 20B is not provided with a light shielding matrix and a color resist layer in the embodiment.

In some alternative embodiments, please continue to refer to fig. 1 and 3 in combination, in this embodiment, along the thickness direction Z of the display panel 000, the second opposite substrate 20B is disposed on a side of the first array substrate 10A away from the first opposite substrate 10B, and the second opposite substrate 20A is disposed on a side of the second opposite substrate 20B away from the first array substrate 10A.

In the display panel 000 formed by the first liquid crystal cell 10 and the second liquid crystal cell 20 which are stacked, the side of the first opposite substrate 10B of the first liquid crystal cell 10 far from the first array substrate 10A is the light emitting surface 000E of the display panel 000, so that the second opposite substrate 20B of the second liquid crystal cell 20 is closer to the first liquid crystal cell 10 than the second array substrate 20A, that is, the second opposite substrate 20B is closer to the light emitting surface 000E of the display panel 000 than the second array substrate 20A, so that the first liquid crystal cell 10 and the second liquid crystal cell 20 are both in a structure with the array substrates down and the opposite substrates up, which is convenient for unified stacking of the first liquid crystal cell 10 and the second liquid crystal cell 20, and is favorable for reducing the difficulty of the manufacturing process and improving the efficiency of the manufacturing process.

In some alternative embodiments, referring to fig. 1 and 4 in combination, fig. 4 is a schematic view of another cross-sectional structure in the direction A-A' in fig. 1, in this embodiment, along the thickness direction Z of the display panel 000, the second array substrate 20A is disposed on a side of the first array substrate 10A away from the first opposite substrate 10B, and the second opposite substrate 20B is disposed on a side of the second array substrate 20A away from the first array substrate 10A.

The present embodiment explains that in the display panel 000 formed by the first liquid crystal cell 10 and the second liquid crystal cell 20 which are stacked, the light exit face 000E of the display panel 000 is taken as the side of the first counter substrate 10B of the first liquid crystal cell 10 away from the first array substrate 10A, and in the second array substrate 20A and the second counter substrate 20B of the second liquid crystal cell 20, the second array substrate 20A is closer to the first liquid crystal cell 10 than the second counter substrate 20B, that is, the second array substrate 20A is closer to the light exit face 000E of the display panel 000 than the second counter substrate 20B. When the first liquid crystal cell 10 and the second liquid crystal cell 20 are stacked, the second array substrate 20A and the second opposite substrate 20B of the second liquid crystal cell 20 may be inverted, i.e. the first array substrate 10A of the first liquid crystal cell 10 is down, the first opposite substrate 10B is up, and the second array substrate 20A of the second liquid crystal cell 20 is down, so that when the display panel 000 of the present embodiment is used in combination with a backlight assembly (not illustrated in the drawings), such as the backlight assembly is disposed on a side of the second liquid crystal cell 20 away from the first liquid crystal cell 10, light from the backlight assembly can be prevented from being blocked by the metal conductive structures of the plurality of second metal conductive layers 20A2 in the second array substrate 20A, that is, the light can directly enter the cell of the second liquid crystal cell 20, so that the light propagation efficiency deflected by the liquid crystal molecules of the second liquid crystal layer 20C is higher, which is beneficial to improving the light brightness of the display panel; when the thin film transistor device including the semiconductor active layer and other structures is disposed in the second array substrate 20A, the second array substrate 20A is disposed on a side of the second opposite substrate 20B away from the underlying backlight assembly, so that light emitted by the backlight assembly can be prevented from directly irradiating the semiconductor active layer of the thin film transistor device, and light leakage flow of the thin film transistor device can be reduced, which is beneficial to reducing dark state light leakage when the display panel is driven to emit light, i.e. the problem of dark state light leakage can be improved, and the overall contrast of the display panel is improved.

In some alternative embodiments, please refer to fig. 1 and 5 in combination, fig. 5 is a schematic cross-sectional view of fig. 1 along the direction A-A', and in this embodiment, the first liquid crystal cell 10 further includes a first support column 10D and a first liquid crystal layer 10C; the first support columns 10D are disposed on a side of the first counter substrate 10B facing the first array substrate 10A, and the first liquid crystal layer 10C is disposed between the first array substrate 10A and the first counter substrate 10B;

the second liquid crystal cell 20 further includes a second support column 20D and a second liquid crystal layer 20C; the second support column 20D is disposed on a side of the second opposite substrate 20B facing the second array substrate 20A, and the second liquid crystal layer 20C is disposed between the second array substrate 20A and the second opposite substrate 20B; wherein,

the first support column 10D has the same structure as the second support column 20D, and the orthographic projection of the first support column 10D on the plane of the second opposite substrate 20B coincides with the orthographic projection of the second support column 20D on the plane of the second opposite substrate 20B.

The present embodiment explains that a plurality of first support columns 10D may be provided between the first array substrate 10A and the first counter substrate 10B of the first liquid crystal cell 10, the first support columns 10D being respectively interposed within the range of the first liquid crystal layer 10C; similarly, a plurality of second support columns 20D may be disposed between the second array substrate 20A and the second opposite substrate 20B of the second liquid crystal cell 20, and the second support columns 20D are respectively inserted in the range of the second liquid crystal layer 20C; the first support column 10D and the second support column 20D can play a role in supporting the thickness of the liquid crystal cell, and avoid the deformation problem of the liquid crystal cell caused by external pressure such as pressing in the use process of the display panel 000. Alternatively, the first support columns 10D are generally disposed on a side of the first opposite substrate 10B facing the first array substrate 10A, and the second support columns 20D are disposed on a side of the second opposite substrate 20B facing the second array substrate 20A, that is, one end of the first support columns 10D contacts the first opposite substrate 10B, a distance is left between the other end of the first support columns 10D and the first array substrate 10A, one end of the second support columns 20D contacts the second opposite substrate 20B, a distance is left between the other end of the second support columns 20D and the second array substrate 20A, and when an external pressure such as a pressing force is applied during use of the display panel 000, a certain redundant space is left for the liquid crystal cell, so as to avoid the problems of breakage of the support columns caused by the pressing.

In this embodiment, the first support column 10D and the second support column 20D are configured to have the same structure, and the front projection of the first support column 10D on the plane of the second opposite substrate 20B coincides with the front projection of the second support column 20D on the plane of the second opposite substrate 20B, so that the first support column 10D of the first liquid crystal cell 10 and the second support column 20D of the second liquid crystal cell 20 can share a mask plate of a support column in the process of manufacturing the display panel 000, which is beneficial to improving the manufacturing efficiency, and can greatly save the cost and reduce the research, development and manufacturing costs of the second liquid crystal cell 20.

It can be understood that the moire problem in the prior art is mainly caused by overlapping interference of the light shielding structures (such as the light shielding matrix and the color block) in the first liquid crystal cell 10 and the second liquid crystal cell 20, so that the first support column 10D and the second support column 20D with thick liquid crystal cells have relatively small structural dimensions and are made of relatively transparent materials, and therefore, even if the orthographic projection of the first support column 10D on the plane of the second opposite substrate 20B coincides with the orthographic projection of the second support column 20D on the plane of the second opposite substrate 20B, the moire problem is not formed, and the arrangement of the embodiment not only can enable the first support column 10D of the first liquid crystal cell 10 and the second support column 20D of the second liquid crystal cell 20 to share a mask plate of one support column, but also can save the cost and ensure the display quality.

Optionally, as shown in fig. 5, in this embodiment, the orthographic projection of the first support column 10D on the plane of the first opposite substrate 10B is located in the orthographic projection area of the light shielding matrix 10B3 on the plane of the first opposite substrate 10B, that is, the orthographic projections of the first support column 10D and the second support column 20D on the plane of the first opposite substrate 10B may be located in the orthographic projection area of the light shielding matrix 10B3 on the plane of the first opposite substrate 10B, so that the arrangement of the first support column 10D and the second support column 20D may be prevented from affecting the aperture ratio of the display panel 000, which is beneficial for ensuring the display effect.

In some alternative embodiments, please refer to fig. 1, fig. 3, fig. 5, fig. 6 and fig. 7 in combination, fig. 6 is a comparison of planar structures of the first counter substrate and the second counter substrate in fig. 3, fig. 7 is a comparison of planar structures of the first array substrate and the second array substrate in fig. 3 (it will be understood that, for clarity of illustrating the structure of this embodiment, transparency filling is performed in fig. 6), and in this embodiment, the first liquid crystal cell 10 includes a plurality of display pixel units 100;

the second liquid crystal cell 20 includes a plurality of light control pixel units 200;

in the thickness direction Z of the display panel 000, the display pixel unit 100 and the light control pixel unit 200 overlap each other.

The present embodiment explains a second array substrate 20A in which a driving circuit, signal wiring, and the like are also required in a second liquid crystal cell 20 for dimming in a display panel 000. The second array substrate 20A has the same structure as the first array substrate 10A, and during the process, the second array substrate 20A in the second liquid crystal cell 20 for dimming can be produced simultaneously with the first array substrate 10A in the first liquid crystal cell 10 without being distinguished, so that the process efficiency can be greatly improved. Therefore, when the first array substrate 10A and the second array substrate 20A have the same structure, the area of the display pixel unit 100 included in the first liquid crystal cell 10 and the area of the light control pixel unit 200 included in the second liquid crystal cell 20 are also the same, and in the thickness direction Z of the display panel 000, the display pixel unit 100 and the light control pixel unit 200 overlap each other, which is not only beneficial to improving the alignment accuracy, but also enables the first array substrate 10A of the first liquid crystal cell 10 and the second array substrate 20A of the second liquid crystal cell 20 to be mutually shared and manufactured together, thereby improving the process efficiency.

It can be understood that the moire in the prior art mainly originates from overlapping interference of the light shielding structures (such as the light shielding matrix and the color block) in the first liquid crystal cell 10 and the second liquid crystal cell 20, the structure dimensions of the thin film transistors in the first array substrate 10A and the second array substrate 20A are relatively small, and the manufacturing materials of the pixel electrode and the common electrode of the electrode layer are relatively transparent, so that even if the structures of the first array substrate 10A and the second array substrate 20A are the same, the display pixel unit 100 and the light control pixel unit which are in one-to-one correspondence are formed, the moire problem is not formed, and therefore, by the arrangement of the embodiment, the first array substrate 10A of the first liquid crystal cell 10 and the second array substrate 20A of the second liquid crystal cell 20 can be mutually shared, so that the manufacturing cost is saved, and the display quality can be ensured.

Alternatively, as shown in fig. 1, 3 and 7, the display pixel unit 100 of the first liquid crystal cell 10 includes a plurality of first stripe electrodes 10a310, the plurality of first stripe electrodes 10a310 form a first pixel electrode 10a31 having a slit, the light control pixel unit 200 of the second liquid crystal cell 20 includes a plurality of second stripe electrodes 20a310, and the plurality of second stripe electrodes 20a310 form a second pixel electrode 20a31 having a slit;

in the thickness direction Z of the display panel 000, the first stripe electrodes 10a310 and the second stripe electrodes 20a310 are disposed in one-to-one correspondence, and the first stripe electrodes 10a310 and the second stripe electrodes 20a310 overlap each other.

The present embodiment illustrates that when the second array substrate 20A and the first array substrate 10A in the display panel 000 have the same structure, the area of the display pixel unit 100 included in the first liquid crystal cell 10 and the area of the light control pixel unit 200 included in the second liquid crystal cell 20 are also the same, and the plurality of first stripe electrodes 10A310 in the first pixel electrode 10A31 included in the display pixel unit 100 and the plurality of second stripe electrodes 20A310 in the second pixel electrode 20A31 included in the light control pixel unit 200 are also in one-to-one correspondence and overlap with each other in the thickness direction Z of the display panel 000, which is not only beneficial to improving the alignment precision, but also enables the first pixel electrode 10A31 of the first liquid crystal cell 10 and the second pixel electrode 20A31 of the second liquid crystal cell 20 to share one mask, thereby saving the cost and improving the manufacturing efficiency.

It can be understood that the moire problem in the prior art mainly originates from overlapping interference of the light shielding structures (such as the light shielding matrix and the color block) in the first liquid crystal cell 10 and the second liquid crystal cell 20, and the manufacturing materials of the pixel electrodes of the electrode layers in the first array substrate 10A and the second array substrate 20A are relatively transparent, so that even if the structures of the first pixel electrode of the first array substrate 10A and the second pixel electrode of the second array substrate 20A are the same, the moire problem is not formed, and therefore, by the arrangement of the embodiment, the first array substrate 10A of the first liquid crystal cell 10 and the second array substrate 20A of the second liquid crystal cell 20 can be mutually and commonly manufactured, so that the cost is saved, and the display quality can be ensured.

Optionally, in the present embodiment, the first pixel electrode 10a31 in the first liquid crystal cell 10 and the second pixel electrode 20a31 in the second liquid crystal cell 20 are the same in shape and made of the same mask, and the first stripe electrode 10a310 included in the first pixel electrode 10a31 and the second stripe electrode 20a310 included in the second pixel electrode 20a31 include any one of a straight line shape (not illustrated in the drawing) or a polygonal line shape (as shown in fig. 7), and in implementation, the first pixel electrode and the second pixel electrode 20a31 may be selectively set according to actual requirements.

In the drawings of the present embodiment, the first pixel electrode 10a31 and the second pixel electrode 20a31 are slit electrodes including a plurality of stripe electrodes, the first common electrode 10a41 and the second common electrode 20a41 are block electrodes (only holes are formed at the via holes where the thin film transistors are connected to the pixel electrodes, and the remaining regions may be in a whole shape), and the pixel electrodes and the common electrodes are located at different layers are exemplified. In other alternative embodiments, the pixel electrode and the common electrode may be the same film layer that is insulated from each other, or the film layers of the pixel electrode layer and the common electrode layer in the array substrate may be interchanged, or may be other arrangement modes, which only need to satisfy the requirement of forming an electric field capable of driving the liquid crystal molecules to deflect.

In some alternative embodiments, please continue to refer to fig. 1 and fig. 2 in combination, in this embodiment, the display panel 000 further includes: a first polarizer 10E, a second polarizer 10F, a third polarizer 20E, and a fourth polarizer 20F; the first polarizer 10E is disposed on a side of the first liquid crystal cell 10 facing the light emitting surface 000E of the display panel 000, and the second polarizer 10F is disposed on a side of the first liquid crystal cell 10 facing away from the light emitting surface 000E of the display panel 000; the third polarizer 20E is disposed on a side of the second liquid crystal cell 20 facing the light-emitting surface 000E of the display panel 000, and the fourth polarizer 20F is disposed on a side of the second liquid crystal cell 20 facing away from the light-emitting surface 000E of the display panel 000; wherein,

The first polarizer 10E and the third polarizer 20E have the same structure;

the second polarizer 10F has the same structure as the fourth polarizer 20F.

The present embodiment illustrates that polarizers, i.e., polarizing plates, are required to be disposed on both upper and lower sides of the first liquid crystal cell 10 and the second liquid crystal cell 20, which are disposed in a stacked manner, so that the polarization direction of a specific light beam can be controlled. When natural light passes through the polaroid, light with the vibration direction perpendicular to the transmission axis of the polaroid is absorbed, and only polarized light with the vibration direction parallel to the transmission axis of the polaroid remains in the transmitted light.

Two polarizers, namely a third polarizer 20E and a fourth polarizer 20F, are respectively arranged on two sides of the second liquid crystal cell 20, the third polarizer 20E is arranged on one side of the second liquid crystal cell 20 facing the light-emitting surface 000E of the display panel 000, the fourth polarizer 20F is arranged on one side of the second liquid crystal cell 20 far away from the light-emitting surface 000E of the display panel 000, the fourth polarizer 20F is used for converting light beams generated by the backlight assembly into polarized light, and the third polarizer 20E is used for analyzing the polarized light which is electrically modulated by liquid crystal molecules of the second liquid crystal cell 20 to generate light-dark contrast, so that the light beams which are subjected to light modulation by the second liquid crystal cell 20 are transmitted to the first liquid crystal cell 10. Two polarizers, namely a first polarizer 10E and a second polarizer 10F, are respectively arranged on two sides of the first liquid crystal box 10, the first polarizer 10E is arranged on one side of the first liquid crystal box 10 facing the light-emitting surface 000E of the display panel 000, the second polarizer 10F is arranged on one side of the first liquid crystal box 10 far away from the light-emitting surface 000E of the display panel 000, the second polarizer 10F is used for converting light beams emitted from the second liquid crystal box 20 into polarized light, and the first polarizer 10E is used for analyzing the polarized light which is electrically modulated by liquid crystal molecules of the first liquid crystal box 10 to generate light-dark contrast, so that a display picture is formed. Imaging of display panels including liquid crystals and liquid crystals requires the reliance on polarized light, and thus polarizers are indispensable structures in liquid crystal-type display devices. The first polarizer 10E and the third polarizer 20E of the present embodiment have the same structure, the second polarizer 10F and the fourth polarizer 20F have the same structure, and the first polarizer 10E and the third polarizer 20E have the same function on the basis of the same structure of the first array substrate 10A and the second array substrate 20A, so that the same structure of the polarizers can be adopted for manufacturing, and the second polarizer 10F and the fourth polarizer 20F have the same function, so that the same structure of the polarizers can be adopted for manufacturing, thereby being beneficial to improving the process efficiency.

It can be understood that the polarizing directions of the first polarizer 10E and the second polarizer 10F corresponding to the first liquid crystal cell 10 are perpendicular to each other, and the polarizing directions of the third polarizer 20E and the fourth polarizer 20F corresponding to the second liquid crystal cell 20 are perpendicular to each other, so that light leakage can be prevented. The first polarizer 10E and the second polarizer 10F may both use biaxial compensation film polarizers having compensation effects on both the plane retardation and the vertical retardation, and the third polarizer 20E and the fourth polarizer 20F may both use biaxial compensation film polarizers having compensation effects on both the plane retardation and the vertical retardation, and since the biaxial compensation film polarizers have higher polarization degree, the transmittance of the liquid crystal cell under the condition of no voltage application is reduced, and thus the display contrast and the viewing angle may be improved.

It should be noted that, when the polarizer is attached to the substrate of the liquid crystal box, in order to ensure that the polarizer can be attached to the substrate of the liquid crystal box tightly, the pressure-sensitive adhesive can be coated on one side of the polarizer, and the pressure-sensitive adhesive is protected by the composite release film, and in this embodiment, the method is not particularly limited, and in particular implementation, the method can be set and manufactured according to the actual manufacturing process of the liquid crystal display box.

In some alternative embodiments, please refer to fig. 8 and 9, fig. 8 is a schematic plan view of a display device according to an embodiment of the present invention, and fig. 9 is a schematic cross-sectional view of direction B-B' in fig. 8, where the display device 111 according to the embodiment includes a backlight module 222 and a display panel 000 according to the above embodiment of the present invention, and the backlight module 222 is located at a side of the display panel 000 away from a light-emitting surface 000E of the display panel 000. The embodiment of fig. 8 is only an example of a mobile phone, and the display device 111 is described, and it is to be understood that the display device 111 provided in the embodiment of the present invention may be other display devices 111 having a display function, such as a computer, a television, and a vehicle-mounted display device, which is not particularly limited in the present invention. The display device 111 provided in the embodiment of the present invention has the beneficial effects of the display panel 000 provided in the embodiment of the present invention, and the specific description of the display panel 000 in the above embodiments may be referred to specifically, and this embodiment is not repeated here.

The display device 111 provided in this embodiment includes a display panel 000 and a backlight module 222 disposed on a side of the display panel 000 away from a light emitting surface 000E thereof, where the display panel 000 includes a first liquid crystal cell 10 and a second liquid crystal cell 20 that are stacked, and the first liquid crystal cell 10 is disposed on a side of the second liquid crystal cell 20 away from the backlight module 222. Assuming that the display device 111 is in the off state, the off state transmittance tr=tr1×tr2 of the two-layer liquid crystal cell, tr1 is the off state transmittance of the first liquid crystal cell 10, tr2 is the off state transmittance of the second liquid crystal cell 20, and the off state transmittance tr' =tr1 of the conventional display device in the single-layer liquid crystal cell (including only the first liquid crystal cell); because the transmittance of each single-layer liquid crystal box is less than 1 (no material can fully transmit 100 percent, and light attenuation exists), the more the number of layers of the liquid crystal box is, the more the attenuation is, and the smaller the overall transmittance obtained by multiplying the off-state transmittance is; therefore, the display device 111 including the first liquid crystal cell 10 and the second liquid crystal cell 20 provided in this embodiment has lower overall off-state brightness, and the contrast ratio can be effectively improved.

It is to be understood that the type of the backlight module 222 is not particularly limited in this embodiment, and the backlight module 222 may be any one of a side-in type backlight or a direct type backlight, and may be selectively arranged according to actual requirements when being implemented.

As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel comprising a first liquid crystal cell and a second liquid crystal cell, the first liquid crystal cell and the second liquid crystal cell being oppositely arranged along a thickness direction of the display panel, characterized in that the first liquid crystal cell comprises a first array substrate and a first opposite substrate which are oppositely arranged along the thickness direction of the display panel; the second liquid crystal box comprises a second array substrate and a second opposite substrate which are oppositely arranged;

the first opposite substrate comprises a color resistance layer and a shading matrix, and the color resistance layer and the shading matrix are respectively arranged on one side of the first opposite substrate facing the first array substrate; wherein,

the second counter substrate has a light transmittance greater than that of the first counter substrate;

The first array substrate and the second array substrate have the same structure, and one side of the first opposite substrate, which is far away from the first array substrate, is a light emergent surface of the display panel.

2. The display panel according to claim 1, wherein the color resist layer and the light shielding matrix on the side of the second opposite substrate facing the second array substrate are disposed in a space.

3. The display panel according to claim 1, wherein the second counter substrate is disposed on a side of the first array substrate away from the first counter substrate in a thickness direction of the display panel, and the second array substrate is disposed on a side of the second counter substrate away from the first array substrate.

4. The display panel according to claim 1, wherein the second array substrate is disposed on a side of the first array substrate away from the first counter substrate in a thickness direction of the display panel, and the second counter substrate is disposed on a side of the second array substrate away from the first array substrate.

5. The display panel of claim 1, wherein the first liquid crystal cell further comprises a first support column and a first liquid crystal layer; the first support columns are arranged on one side of the first opposite substrate facing the first array substrate, and the first liquid crystal layer is arranged between the first array substrate and the first opposite substrate;

The second liquid crystal box further comprises a second support column and a second liquid crystal layer; the second support column is arranged on one side of the second opposite substrate facing the second array substrate, and the second liquid crystal layer is arranged between the second array substrate and the second opposite substrate; wherein,

the first support column and the second support column have the same structure, and the orthographic projection of the first support column on the plane of the second opposite substrate coincides with the orthographic projection of the second support column on the plane of the second opposite substrate.

6. The display panel of claim 5, wherein the orthographic projection of the first support column on the plane of the first counter substrate is located in the region of orthographic projection of the light shielding matrix on the plane of the first counter substrate.

7. The display panel of claim 1, wherein the first liquid crystal cell comprises a plurality of display pixel cells;

the second liquid crystal box comprises a plurality of light control pixel units;

in the thickness direction of the display panel, the display pixel unit and the light control pixel unit are mutually overlapped.

8. The display panel of claim 7, wherein the display pixel unit comprises a plurality of first stripe electrodes and the light control pixel unit comprises a plurality of second stripe electrodes;

In the thickness direction of the display panel, the first strip-shaped electrodes and the second strip-shaped electrodes are arranged in one-to-one correspondence, and the first strip-shaped electrodes and the second strip-shaped electrodes are mutually overlapped.

9. The display panel of claim 8, wherein the first stripe-shaped electrode comprises any one of a straight line shape or a folded line shape.

10. The display panel of claim 1, further comprising: the first polarizer, the second polarizer, the third polarizer and the fourth polarizer; the first polaroid is arranged on one side of the first liquid crystal box facing the light-emitting surface of the display panel, and the second polaroid is arranged on one side of the first liquid crystal box far away from the light-emitting surface of the display panel; the third polaroid is arranged on one side of the second liquid crystal box facing the light-emitting surface of the display panel, and the fourth polaroid is arranged on one side of the second liquid crystal box far away from the light-emitting surface of the display panel; wherein,

the first polaroid and the third polaroid have the same structure;

the second polaroid and the fourth polaroid have the same structure.

11. A display device comprising a backlight module and the display panel of any one of claims 1-10;

The backlight module is positioned at one side of the display panel, which is away from the light emergent surface of the display panel.