Dimming panel and display device

Abstract

The embodiment of the invention provides a dimming panel and a display device, relates to the technical field of display, and aims to improve the light leakage phenomenon of a partial area, close to a peripheral area, of a display area. The dimming panel comprises a first substrate, a second substrate, frame sealing glue, a first liquid crystal layer, a functional electrode layer, a conductive layer and a common electrode layer, wherein the first substrate and the second substrate are oppositely arranged. The functional electrode layer comprises a regulation electrode located in the peripheral area and a driving electrode located in the display area. The regulation and control electrode is located on the side, close to the display area, of the frame sealing glue and surrounds at least one part of the display area. The conductive layer comprises a regulation and control signal line and a driving signal line; the regulation and control signal line comprises a first regulation and control signal line and a second regulation and control signal line which are connected with each other; the driving signal lines are electrically connected with the driving electrodes. And a voltage difference exists between the regulation voltage transmitted to the regulation electrode in the first regulation signal line and the common voltage transmitted in the common electrode layer. The dimming panel is used for dimming, and the display device is used for displaying images.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a dimming panel and a display device. Background Art

[0002] In the field of liquid crystal display, a dimming panel design has appeared in the display device. The display device is a device in which a dimming panel is set between a backlight module and a display panel. The dimming panel controls the transmittance of light emitted by the backlight module to control the backlight emitted to the display panel, thereby achieving the purpose of anti-peeping or regional control of the backlight of the display device.

[0003] For example, the dimming panel in the display device can control the emission angle range of the backlight provided by the backlight module, thereby realizing the anti-peeping state and the shared display state of the display device.

[0004] For another example, a dimming panel in a display device can realize regional control of the backlight, realize high contrast display of the display device, and thus realize High Dynamic Range Imaging (HDR) technology of the display device. Summary of the invention

[0005] The purpose of the embodiments of the present disclosure is to provide a dimming panel and a display device, which are used to improve the light leakage phenomenon in a partial area of ​​a display area close to a peripheral area.

[0006] To achieve the above objectives, the embodiments of the present disclosure provide the following technical solutions:

[0007] On the one hand, a dimming panel is provided. The dimming panel has a display area and a peripheral area surrounding the display area; the dimming panel includes: a first substrate and a second substrate arranged opposite to each other, a frame sealant, a first liquid crystal layer, a functional electrode layer, a conductive layer and a common electrode layer. The first substrate and the second substrate are arranged opposite to each other. The frame sealant connects the first substrate and the second substrate. The frame sealant is located in the peripheral area and surrounds the display area. The first liquid crystal layer is arranged in a cavity surrounded by the first substrate, the frame sealant and the second substrate. The functional electrode layer is arranged on a side of the first substrate close to the first liquid crystal layer. The functional electrode layer includes a control electrode located in the peripheral area and a driving electrode located in the display area. The control electrode is located on a side of the frame sealant close to the display area and surrounds at least a portion of the display area. The conductive layer is arranged between the first substrate and the functional electrode layer; the conductive layer includes a control signal line and a drive signal line; the control signal line includes a first control signal line and a second control signal line connected to each other, the first control signal line is located on the side of the sealant close to the display area, the second control signal line is located on the side of the sealant away from the display area, and the first control signal line is electrically connected to the control electrode; part of the drive signal line is located in the display area, and the drive signal line is electrically connected to the drive electrode. The common electrode layer is arranged between the conductive layer and the functional electrode layer, or, arranged on the side of the second substrate close to the first liquid crystal layer. There is a voltage difference between the control voltage transmitted from the first control signal line to the control electrode and the common voltage transmitted in the common electrode layer.

[0008] In the dimming panel, by setting a control electrode in the functional conductive layer so that the control electrode is located in the peripheral area, and setting a first control signal line electrically connected to the control electrode in the conductive layer, the first control signal line can be used to transmit a control signal having a voltage difference with the common voltage signal to the control electrode, thereby forming an electric field between the control electrode and the common electrode layer. In this way, after the impurity ions are released in the sealant and diffused to the first liquid crystal layer, the impurity ions are bound in the peripheral area of ​​the dimming panel due to the presence of the electric field, thereby preventing the impurity ions from diffusing from the peripheral area to the display area, thereby preventing the impurity ions from affecting the electric field between the common electrode layer and the drive electrode in the display area, and avoiding affecting the normal deflection of the liquid crystal molecules between the common electrode layer and the drive electrode, which is conducive to improving the light leakage phenomenon in the partial area of ​​the display area close to the peripheral area.

[0009] In some embodiments, the orthographic projection of the first control signal line on the first substrate is located between the orthographic projection of the sealing glue on the first substrate and the orthographic projection of the display area on the first substrate, and at least partially overlaps with the orthographic projection of the control electrode on the first substrate; and / or the routing morphology of the first control signal line is the same as the routing morphology of the control electrode.

[0010] In some embodiments, the peripheral area includes a first binding area; the dimming panel also includes: at least one target pin located in the first binding area, and the second control signal line is electrically connected to the target pin.

[0011] In some embodiments, the access end of the second control signal line is spaced apart from the first binding area. The conductive layer further includes a connecting line, the first end of which is bound to the target pin, and the second end of which is an integral structure with the access end of the second control signal line; or, the conductive layer includes a connecting line, the first end of which is bound to the target pin, and the second end of which is spaced apart from the access end of the second control signal line; the functional electrode layer further includes a bridging pattern located on the second end of the connecting line and the access end of the second control signal line, and the second end of the connecting line is electrically connected to the access end of the second control signal line through the bridging pattern.

[0012] In some embodiments, the access end of the second control signal line is arranged relative to the area occupied by the target pin.

[0013] In some embodiments, the regulation electrode includes a first sub-line, a second sub-line, a third sub-line and a fourth sub-line which are connected end to end in sequence, the first sub-line is located on a side of the display area close to the first binding area, the first sub-line and the fourth sub-line are disconnected from each other to form an opening, and the opening is arranged opposite to the first binding area.

[0014] In some embodiments, the first control signal line is in an open shape. The second control signal line has two access ends, and both of the access ends are electrically connected to the target pin.

[0015] In some embodiments, at least a portion of the first control signal lines are arranged in a grid shape, and / or at least a portion of the second control signal lines are arranged in a grid shape.

[0016] In some embodiments, a minimum distance between an orthographic projection of the control electrode on the first substrate and an orthographic projection of the sealing adhesive on the first substrate is greater than or equal to 0.2 mm.

[0017] In some embodiments, the functional electrode layer further includes: a transfer electrode located in the peripheral area; the transfer electrode is arranged on a surface of the side of the frame sealant close to the first substrate. The conductive layer further includes: a common voltage signal line located in the peripheral area. In the case where the common electrode layer is located between the conductive layer and the functional electrode layer, the transfer electrode is electrically connected to the common electrode layer, and the transfer electrode is also electrically connected to the common voltage signal line. In the case where the common electrode layer is located on a side of the second substrate close to the first liquid crystal layer, the common electrode layer is in contact with the frame sealant, the frame sealant has conductive particles, and the transfer electrode is electrically connected to the common voltage signal line.

[0018] In some embodiments, a distance between an orthographic projection of the switching electrode on the first substrate and an orthographic projection of the control electrode on the first substrate is less than or equal to 0.05 mm.

[0019] In some embodiments, an orthographic projection of the switching electrode on the first substrate at least partially overlaps with an orthographic projection of the sealing adhesive on the first substrate.

[0020] In some embodiments, in an orthographic projection onto the first substrate, a minimum distance between an orthographic projection of the driving electrode on the first substrate and an orthographic projection of the regulating electrode on the first substrate is greater than or equal to 0.13 mm.

[0021] In some embodiments, the driving signal line is arranged in a zigzag shape.

[0022] In some embodiments, when the common electrode layer is located between the conductive layer and the functional electrode layer, the driving electrode includes a plurality of driving electrode blocks, and the plurality of driving electrode blocks are arranged in a plurality of rows and columns. The driving signal line includes a plurality of sub-driving signal lines, and the plurality of sub-driving signal lines extend in the column direction and are sequentially arranged in a row direction. The common electrode layer has a plurality of through holes, and one driving electrode block is electrically connected to one sub-driving signal line through a corresponding through hole.

[0023] In some embodiments, the conductive layer further includes: a plurality of transmission signal lines located in the display area, the plurality of transmission signal lines extending along the column direction and arranged in sequence along the row direction; a column of driving electrode blocks is arranged corresponding to at least one transmission signal line.

[0024] In some embodiments, the conductive layer further comprises: a plurality of light shielding lines located in the display area; the plurality of light shielding lines extend along the row direction and are sequentially spaced along the column direction; and the orthographic projection of the light shielding line on the first substrate is located between the orthographic projections of two adjacent rows of driving electrode blocks on the first substrate.

[0025] In some embodiments, along the column direction, a size of an orthographic projection of the shading line on the first substrate is greater than or equal to a size between orthographic projections of two adjacent rows of driving electrode blocks on the first substrate.

[0026] In some embodiments, the shielding line is disconnected at a position where it intersects with the sub-driving signal line.

[0027] In another aspect, a display device is provided, comprising a backlight module, any dimming panel as described above, and a display panel disposed on a side of the dimming panel away from the backlight module.

[0028] In some embodiments, the display device further includes: a flexible circuit board bound to the target pin in the first binding area of ​​the dimming panel.

[0029] In some embodiments, in the dimming panel, the driving electrode in the functional electrode layer includes a plurality of driving electrode blocks, and the driving signal line includes a plurality of sub-driving signal lines. The peripheral area of ​​the dimming panel also includes a second binding area, and the second binding area is located between the first binding area and the frame sealant of the dimming panel. The plurality of sub-driving signal lines extend out of the range defined by the frame sealant and extend to the second binding area. The display device also includes: a driving chip bound to the second binding area, and the driving chip is electrically connected to the plurality of driving signal lines.

[0030] In some embodiments, the display device further includes: a first polarizer, a second polarizer, and a third polarizer. The first polarizer is disposed between the backlight module and the dimming panel. The second polarizer is disposed between the dimming panel and the display panel. The light transmission axis of the second polarizer is parallel to the light transmission axis of the first polarizer. The third polarizer is disposed on the display panel. The light transmission axis of the third polarizer is perpendicular to the light transmission axis of the first polarizer.

[0031] In some embodiments, the display device further comprises: an anti-peep film, a fourth polarizer and a fifth polarizer. The anti-peep film is arranged between the backlight module and the dimming panel. The fourth polarizer is arranged between the dimming panel and the display panel. The fifth polarizer is arranged on the display panel.

[0032] The above-mentioned display device has the same structure and beneficial technical effects as the dimming panel provided in some of the above-mentioned embodiments, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the products involved in the embodiments of the present disclosure.

[0034] Figure 1 is a structural diagram of a display device according to some embodiments of the present disclosure;

[0035] Figure 2 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0036] Figure 3 for Figure 1 A cross-sectional view along CC' direction;

[0037] Figure 4 for Figure 1 A cross-sectional view along CC' direction;

[0038] Figure 5A is a structural diagram of a dimming panel according to some embodiments of the present disclosure;

[0039] Figure 5B is a structural diagram of another dimming panel according to some embodiments of the present disclosure;

[0040] Figure 5C for Figure 5B The structural diagram of the control electrode in FIG.

[0041] Figure 5D for Figure 5B The structural diagram of the regulatory signal line in ;

[0042] Figure 6 for Figure 5A A cross-sectional view along the DD' direction;

[0043] Figure 7 for Figure 5B A cross-sectional view along EE' direction;

[0044] Figure 8 is a partial structural diagram of a dimming panel according to some embodiments of the present disclosure;

[0045] Fig. 9 is a partial structural diagram of another dimming panel according to some embodiments of the present disclosure;

[0046] Fig. 10A is a structural diagram of yet another display device according to some embodiments of the present disclosure;

[0047] Fig. 10B for Fig. 10A A local magnified view of the middle Q1 region;

[0048] Fig. 10C for Fig. 10B A partial magnified view of the middle Q2 region;

[0049] Fig. 10D for Fig. 10B Another partial magnification of the middle Q2 area;

[0050] Fig.10E for Fig. 10D A cross-sectional view along the FF' direction;

[0051] Fig.11 for Fig. 10A A partial magnified view of the middle Q3 area;

[0052] Fig.12 for Fig.11 A partial magnified view of the middle Q4 area;

[0053] Fig.13A is a structural diagram of yet another display device according to some embodiments of the present disclosure;

[0054] Fig. 13B is a structural diagram of yet another display device according to some embodiments of the present disclosure;

[0055] Fig.14 for Fig. 13B A cross-sectional view along the GG' direction;

[0056] Fig.15 for Fig.13A A partial magnified view of the middle Q5 area;

[0057] Fig.16 for Fig.15 A partial magnified view of the middle Q6 area;

[0058] Fig.17 for Fig. 13B A partial magnified view of the middle Q7 region;

[0059] Fig.18 for Fig. 10A A partial magnified view of the middle Q8 region;

[0060] Fig.19 for Fig.18 A partial magnified view of the middle Q9 region;

[0061] Fig. 20 is a structural diagram of yet another display device according to some embodiments of the present disclosure;

[0062] Fig.21A is a light propagation path diagram of a display device according to some embodiments of the present disclosure;

[0063] Fig.21B is another light propagation path diagram of a display device according to some embodiments of the present disclosure;

[0064] Fig. 22 is a structural diagram of yet another display device according to some embodiments of the present disclosure;

[0065] Fig.23 for Fig. 22 A cross-sectional view along the NN' direction;

[0066] Fig.24 for Fig. 22 A cross-sectional view along the OO' direction;

[0067] Fig.25 is a structural diagram of yet another display device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0068] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0069] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0070] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0071] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0072] The use of "adapted to" or "configured to" herein is meant to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0073] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0074] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0075] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0076] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0077] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0078] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0079] Some embodiments of the present disclosure provide a dimming panel and a display device. The dimming panel and the display device are respectively introduced below in conjunction with the accompanying drawings.

[0080] like Figure 1As shown, some embodiments of the present disclosure provide a display device 1000. The display device 1000 can be any device that displays whether it is moving (e.g., video) or fixed (e.g., still image) and whether it is text or image. More specifically, it is expected that the embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, TV monitors, flat panel displays, computer monitors, car displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, etc.

[0081] In some examples, such as Figure 2 As shown, the display device 1000 includes a backlight module 200, a dimming panel 100, a display panel 300 and a housing 400. The dimming panel 100 is arranged on the light-emitting side of the backlight module 200, and the display panel 300 is arranged on the side of the dimming panel 100 away from the backlight module 200. The backlight module 200, the dimming panel 100, and the display panel 300 are arranged in the housing 400. The housing 400 has a certain strength and can provide protection for the backlight module 200, the dimming panel 100, and the display panel 300 arranged in the housing 400. For example, the material of the housing includes plastic.

[0082] Here, the backlight module 200 is used to provide backlight. The light-emitting side of the backlight module refers to the side from which the backlight module emits light.

[0083] The dimming panel 100 is used to adjust the light passing through it. The display panel is used to cooperate with the backlight module and the dimming panel to realize image display. By using the dimming panel to adjust the light passing through it, the display device 1000 can have an anti-peeping function, or the display device 1000 can realize a high-contrast display function.

[0084] The display panel 300 is, for example, a liquid crystal display panel. Depending on the display mode, the display panel 300 may be a twisted nematic (TN) display panel, an in-plane switching (IPS) display panel, an advanced super-dimensional switching (ADS) display panel, etc., and may be selected and set according to actual needs, and the present disclosure does not limit this.

[0085] Exemplarily, the driving mode of the display panel 300 may be a passive matrix (PM) driving mode or an active matrix (AM) driving mode. When the driving mode of the display panel 300 is an active matrix driving mode, the display panel 300 may be, for example, a thin film transistor liquid crystal display panel (TFT-LCD).

[0086] In some examples, such as Figure 3 and Figure 4 As shown, along a direction perpendicular to and away from the backlight module 200 , the display panel 300 includes an array substrate 310 , a second liquid crystal layer 320 , and a color filter substrate 330 which are stacked in sequence.

[0087] Exemplarily, the array substrate 310 includes a plurality of thin film transistors and a plurality of pixel electrodes electrically connected to the plurality of thin film transistors, respectively. Each thin film transistor can provide an electrical signal to a corresponding pixel electrode.

[0088] Exemplarily, the color filter substrate 330 includes a variety of color filters and other structures. For example, when the light incident on the color filter is white light, the color filter may include a red filter, a green filter, a blue filter, etc. The red filter can only allow the red light in the incident light to pass through, the green filter can only allow the green light in the incident light to pass through, and the blue filter can only allow the blue light in the incident light to pass through. For another example, when the light incident on the color filter is blue light, the color filter may include a red filter and a green filter, etc.

[0089] like Figure 3 and Figure 4 As shown, the color filter substrate 330 further includes a black matrix 331 .

[0090] Exemplarily, the black matrix 331 may be disposed between adjacent color filters to isolate color filters of different colors and avoid light mixing.

[0091] Exemplarily, the black matrix 331 may also be disposed in an area adjacent to the display area AA and the peripheral area BB to prevent oblique light from the peripheral area BB from being emitted from the display area AA, thereby shielding the display area AA from light leakage.

[0092] The display panel further comprises a common electrode, which can be arranged in the array substrate or in the color filter substrate. The common electrode is used to receive a common voltage signal.

[0093] For example, there is a voltage difference between the common voltage signal and the electric signal in the pixel electrode, so that an electric field can be generated between the common electrode and the pixel electrode. The liquid crystal molecules in the second liquid crystal layer can be deflected under the action of the electric field, thereby changing the amount of light passing through the liquid crystal molecules, so that the light emitted by the liquid crystal molecules reaches a preset brightness. The above light passes through the filters of different colors in the color filter substrate and then emits. The emitted light includes light of various colors, such as red light, green light, blue light, etc. The light of various colors cooperates with each other, so that the display device can realize display.

[0094] In some embodiments, Figure 5A and Figure 5B As shown, the dimming panel 100 has a display area AA and a peripheral area BB surrounding the display area AA. The display area AA corresponds to the area for displaying images in the display panel 300, and the peripheral area BB is the area of ​​the dimming panel 100 other than the display area AA, and the peripheral area BB surrounds the display area AA.

[0095] In some examples, such as Figure 6 and Figure 7 As shown, the dimming panel 100 includes a first substrate 1 , a second substrate 2 , a sealing adhesive 3 , a first liquid crystal layer 4 , a functional electrode layer 5 , a conductive layer 6 and a common electrode layer 7 .

[0096] The first substrate 1 and the second substrate 2 are arranged opposite to each other. The material of the first substrate 1 and the material of the second substrate 2 may be the same or different. The material of the first substrate 1 and the material of the second substrate 2 may include organic material or inorganic material.

[0097] For example, the first substrate 1 and the second substrate 2 are both glass substrates.

[0098] The sealant 3 connects the first substrate 1 and the second substrate 2. Figure 5A and Figure 5B As shown, the frame sealant 3 is located in the peripheral area BB and surrounds the display area AA. The frame sealant 3 is not only used to support the first substrate 1 and the second substrate 2, but also used to form a closed cavity together with the first substrate 1 and the second substrate 2 to provide a holding space for the first liquid crystal layer 4. The first liquid crystal layer 4 is disposed in the cavity surrounded by the first substrate 1, the frame sealant 3 and the second substrate 2.

[0099] The sealed cavity can also isolate the air to prevent the first liquid crystal layer 4 in the cavity from being contaminated.

[0100] Exemplarily, the material of the frame sealant 3 includes organic material.

[0101] like Figure 6 and Figure 7As shown, the functional electrode layer 5 is arranged on a side of the first substrate 1 close to the first liquid crystal layer 4. The functional electrode layer 5 includes a driving electrode 51 located in the display area AA.

[0102] There are many ways to configure the driving electrodes 51 , and the configuration can be based on actual display requirements.

[0103] For example, Figure 5A As shown, the driving electrode 51 is an integrated structure, that is, only one driving electrode 51 is disposed in the display area AA.

[0104] For example, Figure 5B As shown, the driving electrode 51 may be divided into a plurality of patterns, that is, the driving electrode 51 may include a plurality of mutually independent driving electrode blocks.

[0105] Exemplarily, the material of the functional electrode layer 5 may include a transparent conductive material, including but not limited to indium tin oxide. This allows the driving electrode 51 located in the display area AA to have a higher light transmittance, thereby avoiding blocking of light and affecting the display effect of the display device 1000.

[0106] like Figure 6 and Figure 7 As shown, the conductive layer 6 is disposed between the first substrate 1 and the functional electrode layer 5. The conductive layer 6 includes a drive signal line 61, and a portion of the drive signal line 61 is located in the display area BB. The drive signal line 61 is electrically connected to the drive electrode 51, and the drive signal line 61 is used to receive the drive signal required by the drive electrode 51 and transmit the drive signal to the drive electrode 51.

[0107] The material of the functional electrode layer 5 and the material of the conductive layer 6 may be the same or different. Exemplarily, the material of the functional electrode layer 5 and the material of the conductive layer 6 are different, and the material of the conductive layer 6 may include a metal material, including but not limited to copper, gold or silver. In this way, the attenuation of the signal transmitted by each signal line (including but not limited to the above-mentioned drive signal line 61) provided in the conductive layer 6 can be reduced.

[0108] The location of the common electrode layer 7 is related to the display mode of the dimming panel 100 , and can be specifically determined according to the display mode of the dimming panel 100 .

[0109] In some examples, such as Figure 7 As shown, the dimming panel 100 is an advanced super-dimensional field switching display mode. At this time, the common electrode layer 7 is arranged between the conductive layer 6 and the functional electrode layer 5.

[0110] Furthermore, if Figure 7As shown, an insulating layer is provided between the common electrode layer 7 and the conductive layer 6, and between the common electrode layer 7 and the functional electrode layer 5. The insulating layer between the common electrode layer 7 and the conductive layer 6, the common electrode layer 7, and the insulating layer between the common electrode layer 7 and the functional electrode layer 5 are provided with vias, and the driving electrode 51 in the functional electrode layer 5 can be electrically connected to the driving signal line 61 in the conductive layer 6 through the corresponding vias.

[0111] In other examples, such as Figure 6 As shown, the dimming panel 100 is in a twisted nematic display mode. At this time, the common electrode layer 7 is arranged on a side of the second substrate 2 close to the first liquid crystal layer 4 .

[0112] Furthermore, an insulating layer is provided between the functional electrode layer 5 and the conductive layer 6 , and the insulating layer has via holes. The driving electrode 51 can be electrically connected to the driving signal line 61 through the corresponding via holes without passing through the common electrode layer 7 .

[0113] Exemplarily, the material of the common electrode layer 7 may be a transparent conductive material, including but not limited to indium tin oxide. This allows the common electrode layer 7 to have a higher light transmittance, thereby avoiding blocking of light passing through the portion of the common electrode layer 7 located in the display area AA, and avoiding affecting the display effect of the display device 1000.

[0114] The common electrode layer 7 can receive a common voltage signal, which can be the same as or different from the common voltage signal received by the common electrode of the display panel 300. There is a voltage difference between the common voltage signal received by the common electrode layer 7 and the driving signal received by the driving electrode 51, so that an electric field can be formed between the common electrode layer 7 and the driving electrode 51. The electric field can drive the liquid crystal molecules in the first liquid crystal layer 4 to deflect, so as to adjust the polarization direction of the light passing through the dimming panel 100.

[0115] In one implementation, Figure 8 and Fig. 9 As shown, after the dimming panel 100 is manufactured, it is necessary to perform a reliability high temperature test on the dimming panel 100. After the test, the frame sealant 3 releases impurity ions P (such as silicon, oxygen, aluminum, titanium, boron, aromatic groups, etc.), and the impurity ions P gradually diffuse into the first liquid crystal layer 4 and diffuse from the peripheral area BB of the dimming panel 100 to the display area AA.

[0116] The impurity ions P generally carry an electric charge. After the impurity ions diffuse into the display area AA, the impurity ions will affect the electric field formed by the common electrode layer and the driving electrode (eg Figure 8 and Fig. 9As shown by the dotted arrow in the figure, the liquid crystal molecules in the area where the impurity ions are located cannot be deflected normally, making it difficult to control the light in the partial area of ​​the display area AA close to the peripheral area BB, thereby causing light leakage in the partial area (for example, manifested as a mountain-shaped display defect).

[0117] Currently, the influence of the impurity ions P on the liquid crystal molecules is usually reduced by reducing the content of the impurity ions P in the frame-sealing glue 3. However, it is difficult to fundamentally remove the impurity ions in the frame-sealing glue 3 with the current process, which means that the influence of the impurity ions P on the liquid crystal molecules is also difficult to eradicate.

[0118] Based on this, combined Figure 5A , Figure 5B , Figure 6 and Figure 7 In the dimming panel 100 provided in the embodiment of the present disclosure, the functional electrode layer 5 further includes: a control electrode 52 located in the peripheral area BB. The control electrode 52 is located on a side of the sealant 3 close to the display area AA and surrounds at least a portion of the display area AA.

[0119] The above-mentioned control electrode 52 is, for example, disposed on at least one side of the display area AA. Optionally, the display area AA is rectangular in shape, and the control electrode 52 is disposed on one side of the display area AA; or Figure 5A and Figure 5B As shown, the control electrodes 52 are arranged on multiple sides of the display area AA.

[0120] like Figure 5A and Figure 5B As shown, the conductive layer 6 further includes: a control signal line 62. The control signal line 62 includes a first control signal line 621 and a second control signal line 622 connected to each other, the first control signal line 621 is located on a side of the sealant 3 close to the display area AA, the second control signal line 622 is located on a side of the sealant 3 away from the display area AA, and the first control signal line 621 is electrically connected to the control electrode 52.

[0121] For example, Figure 6 As shown, when the common electrode layer 7 is disposed on the side of the second substrate 2 close to the first liquid crystal layer 4, the control electrode 52 can be electrically connected to the first control signal line 621 through the corresponding via hole. In this case, the via hole penetrates the insulating layer between the functional electrode layer 5 and the conductive layer 6.

[0122] For example, Figure 7 As shown, when the common electrode layer 7 is disposed between the conductive layer 6 and the functional electrode layer 5, the control electrode 52 can be electrically connected to the first control signal line 621 through the corresponding via hole. It can be understood that in this case, the via hole penetrates the insulating layer between the functional electrode layer 5 and the conductive layer 6, and the common electrode layer 7.

[0123] The second control signal line 622 is used to receive the control signal, and transmit the control signal to the first control signal line 621, and finally to the control electrode 52. There is a voltage difference between the control voltage transmitted from the first control signal line 621 to the control electrode 52 and the common voltage transmitted from the common electrode layer 7.

[0124] In this way, Figure 6 and Figure 7 As shown, an electric field (also called a bound electric field, such as Figure 6 and Figure 7 The electric field is distributed in the peripheral area BB. The impurity ions P released from the sealant 3 are bound in the peripheral area BB due to the electric field during the diffusion process from the peripheral area BB to the display area AA, making it difficult for the impurity ions to diffuse to the display area AA.

[0125] Therefore, the dimming panel 100 provided by the embodiment of the present disclosure, by setting the control electrode 52 in the functional conductive layer 5 so that the control electrode 52 is located in the peripheral area BB, and setting the first control signal line 621 electrically connected to the control electrode 52 in the conductive layer 6, can use the first control signal line 621 to transmit the control signal having a voltage difference with the common voltage signal to the control electrode 52, and then form an electric field between the control electrode 52 and the common electrode layer 7. In this way, after the impurity ions P are released in the sealant 3 and diffused to the first liquid crystal layer 4, the impurity ions P are bound in the peripheral area BB of the dimming panel 100 due to the existence of the above electric field, which can prevent the impurity ions P from diffusing from the peripheral area BB to the display area AA, and then prevent the impurity ions P from affecting the electric field between the common electrode layer 7 and the driving electrode 51 in the display area AA, and avoid affecting the normal deflection of the liquid crystal molecules located between the common electrode layer 7 and the driving electrode 51, which is conducive to improving the light leakage phenomenon in the partial area of ​​the display area AA close to the peripheral area BB. When the material of the conductive layer 6 is metal material, the resistance of the control signal line 62 can be reduced, and the attenuation of the control voltage transmitted on the control signal line 62 can be reduced, which is beneficial to ensure the stability of the electric field between the control electrode 52 and the common electrode layer 7, and ensure the binding effect on the impurity ions P.

[0126] Moreover, the embodiment of the present disclosure sets the control electrode 52 on the functional electrode layer 5 and sets the control signal line 62 on the conductive layer 6, instead of setting other additional film layers, so as to avoid increasing the number of film layers in the dimming panel 100, and further avoid increasing the thickness of the dimming panel 100. When the conductive layer 6 is made of metal material, the resistance of the control signal line 62 can be reduced, and the attenuation of the control voltage transmitted on the control signal line 62 can be reduced, which is conducive to ensuring the stability of the electric field between the control electrode 52 and the common electrode layer 7, and ensuring the binding effect on the impurity ions P.

[0127] In some examples, in a direction perpendicular to the plane of the substrate 1 , the width of the control electrode 52 includes, but is not limited to, 0.12 mm.

[0128] It is understandable that the larger the width of the control electrode 52 is, the larger the range of the electric field formed between the control electrode 52 and the common electrode layer 7 is, and the stronger the binding effect on the impurity ions P is. The disclosed embodiment can adjust the width of the control electrode 52 according to the size of the dimming panel 100, so as to avoid the influence of the width of the control electrode 52 on the size of the peripheral area BB of the dimming panel 100 on the basis of a relatively strong electric field between the control electrode 52 and the common electrode layer 7.

[0129] In some embodiments, Figure 5A and Figure 5B As shown, the orthographic projection of the first control signal line 621 on the first substrate 1 is located between the orthographic projection of the sealing glue 3 on the first substrate 1 and the orthographic projection of the display area AA on the first substrate 1, and at least partially overlaps with the orthographic projection of the control electrode 52 on the first substrate 1.

[0130] It should be noted that the above-mentioned “at least partially overlap” includes: partial overlap, full overlap, and overlap.

[0131] Through the above-mentioned arrangement, a plurality of connection holes can be set at the part where the orthographic projection of the first control signal line 621 on the first substrate 1 overlaps with the orthographic projection of the control electrode 52 on the first substrate 1 to realize the electrical connection between the first control signal line 621 and the control electrode 52. This not only facilitates improving the reliability of the electrical connection between the first control signal line 621 and the control electrode 52, but also reduces the overall resistance of the overlapping part of the first control signal line 621 and the control electrode 52, which is beneficial to reducing the loss of the control voltage during the transmission process of the above-mentioned overlapping part, and is beneficial to improving the stability of the electric field formed between the control electrode 52 and the common electrode layer 7, thereby ensuring the binding effect of the above-mentioned electric field on the impurity ions P.

[0132] Furthermore, the area occupied by the first control signal line 621 and the control electrode 52 in the entire dimming panel 100 can be reduced.

[0133] In other embodiments, Figure 5A and Figure 5B As shown, the routing morphology of the first control signal line 621 is the same as the routing morphology of the control electrode 52 .

[0134] Here, “routing morphology” refers to, for example, the extending direction of the routing, the shape of the routing, etc.

[0135] Exemplarily, the routing morphology of the first control signal line 621 is a straight line, and the routing morphology of the control electrode 52 is also a straight line.

[0136] Alternatively, the routing shape of the first control signal line 621 may be an arc shape, and the routing shape of the control electrode 52 may also be an arc shape.

[0137] Or, if Figure 5B As shown in FIG. 1 , the routing morphology of the first control signal line 621 is a multi-segment fold line, and the routing morphology of the control electrode 52 is also a multi-segment fold line. Figure 5C As shown, the control electrode 52 includes a first sub-line 521, a second sub-line 522, a third sub-line 523 and a fourth sub-line 524 connected end to end in sequence; Figure 5B , the first sub-line 521 is located below the display area AA, the second sub-line 522 is located on the left side of the display area AA, the third sub-line 523 is located above the display area AA, and the fourth sub-line 524 is located on the right side of the display area AA. Figure 5D As shown, the first control signal line 621 also includes a fifth sub-line 6211, a sixth sub-line 6212, a seventh sub-line 6213 and an eighth sub-line 6214 which are connected end to end in sequence; Figure 5B , the fifth sub-line 6211 is located below the display area AA, the sixth sub-line 6212 is located on the left side of the display area AA, the seventh sub-line 6213 is located above the display area AA, and the eighth sub-line 6214 is located on the right side of the display area AA. Among them, the first sub-line 521 is arranged correspondingly to the fifth sub-line 6211, the second sub-line 522 is arranged correspondingly to the sixth sub-line 6212, the third sub-line 523 is arranged correspondingly to the seventh sub-line 6213, and the fourth sub-line 524 is arranged correspondingly to the eighth sub-line 6214.

[0138] Through the above-mentioned arrangement, the positions where the control electrodes 52 are arranged in the dimming panel 100 are all correspondingly provided with control signal lines 62. Therefore, in the direction toward the plane where the first substrate 1 is located, the portion of the control signal line 62 located on the side of the sealing glue 3 close to the display area AA can form a transmission channel for the control signal together with the control electrode 52, which is also beneficial to reducing the area occupied by the control signal line and the control electrode.

[0139] In some embodiments, Figure 5A and Figure 5BAs shown, the peripheral area BB includes a first binding area B1. The dimming panel 100 further includes: at least one target pin 8 located in the first binding area B1.

[0140] The number of the target pins 8 may be one, two, three or even more. In the case where the number of the target pins 8 is multiple, the types of the multiple target pins 8 may be the same or different.

[0141] Optionally, the number of the target pin 8 may be one. Fig. 10A , Fig. 10B , Fig. 10C As shown, the target pin 8 can be a first voltage signal pin 81, a second voltage signal pin 82 or a clock signal pin 83. Among them, the first voltage signal pin 81 is used to transmit a first voltage signal, and the first voltage signal can be, for example, a high-level constant voltage signal. The second voltage signal pin 82 is used to transmit a second voltage signal, and the first voltage signal can be, for example, a low-level constant voltage signal. The clock signal pin 83 is used to transmit a clock signal.

[0142] Exemplarily, there is a voltage difference between the first voltage signal, the second voltage signal, and the clock signal and the common voltage transmitted in the common electrode 71 .

[0143] Optionally, the number of the target pins 8 may be two, and the types of the two target pins 8 are different. The two target pins 8 are, for example, two of the first voltage signal pin 81 , the second voltage signal pin 82 , and the clock signal pin 83 .

[0144] Optionally, the number of the target pins 8 may be three, and the types of the three target pins 8 are different. The three target pins 8 are, for example, a first voltage signal pin 81, a second voltage signal pin 82, and a clock signal pin 83.

[0145] Optionally, the number of the target pins 8 may be greater, wherein some of the target pins 8 are used to transmit display signals to the display panel 300 .

[0146] For example, Figure 5A and Figure 5B As shown, the second control signal line 622 is electrically connected to the target pin 8. The target pin 8 can receive a control voltage signal and transmit the control voltage signal to the first control signal line 621.

[0147] Here, the target pin 8 electrically connected to the second control signal line 622 only needs to receive one control voltage signal. For example, the second control signal line 622 can be electrically connected to only one of the first voltage signal pin 81, the second voltage signal pin 82, and the clock signal pin 83. Accordingly, the control voltage signal is one of the first voltage signal, the second voltage signal, and the clock signal.

[0148] Through the above arrangement, the control voltage signal transmitted in the target pin 8 can be transmitted to the second control signal line 622, and finally transmitted to the control electrode 52 through the first control signal line 621, so as to generate an electric field between the common electrode layer 7 and the control electrode 52 to bind the impurity ions. In addition, when the material of the conductive layer 6 is a metal material (such as copper, gold, silver, etc.), compared with the transparent conductive material (such as indium tin oxide), the resistance of the metal material is smaller. By setting the first control signal line 621 and the second control signal line 622 in the conductive layer 6, the resistance of the first control signal line 621 and the second control signal line 622 can be made smaller, which can reduce the attenuation of the control signal transmitted to the control electrode 52, which is conducive to ensuring the stability of the above control signal, thereby ensuring the electric field strength between the control electrode 52 and the common electrode 71, which is conducive to ensuring the binding effect on the impurity ions.

[0149] In some embodiments, Fig. 10C and Fig. 10D As shown, the access end 622A of the second control signal line 622 is spaced apart from the first binding area B1, and does not extend into the first binding area B1 to be directly connected to the first binding area B1. Optionally, the conductive layer 6 also includes a connecting line 63, a first end 63A of the connecting line 63 is bound to the target pin 8, and a second end 63B of the connecting line 63 is electrically connected to the access end 622A of the second control signal line 622. That is, the access end 622A of the control signal line 62 is electrically connected to the target pin 8 through the connecting line 63.

[0150] The number of the connecting wires 63 may be multiple, and the types of the target pins 8 electrically connected to the first ends 63A of the multiple connecting wires 63 are different. Fig. 10C and Fig. 10D , three connecting wires 63 are schematically shown, and the first ends 63A of the three connecting wires 63 are connected to different target pins 8, and the second end 63B of one of the three connecting wires 63 is electrically connected to the second control signal wire 622. That is to say, the other two connecting wires 63 can be used as alternatives, and after the connecting wire 63 electrically connected to the second control signal wire 622 is damaged, the second control signal wire 622 can be reconnected to the alternative connecting wire 63 to input the control signal to the second control signal wire 622, thereby facilitating the maintenance of the dimming panel 100.

[0151] There are multiple ways to electrically connect the access end 622A of the second control signal line 622 and the second end 63B of the connection line 63 .

[0152] In some examples, such as Fig. 10C As shown, the second end 63B of the connecting line 63 and the access end 622A of the second regulating signal line 622 are in an integrated structure.

[0153] That is, during the process of manufacturing the conductive layer 6, the access end 622A of the second control signal line 622 and the connecting line 63 electrically connected thereto are continuous and not disconnected. In this way, the electrical connection between the second control signal line 622 and the connecting line 63 can be achieved after the conductive layer 6 is manufactured, which can reduce the wiring difficulty of the conductive layer 6 and simplify the manufacturing process of the dimming panel 100.

[0154] In other examples, combined with Fig. 10D and Fig.10E , the second end 63B of the connecting line 63 is spaced from the access end 622A of the second control signal line 622. That is, in the process of manufacturing the conductive layer 6, the access end 622A of the second control signal line 622 and the connecting line 63 electrically connected thereto are disconnected. Among them, the functional electrode layer 5 also includes: a bridge pattern 53 located on the second end of the connecting line 63 and the access end 622A of the second control signal line 622, and the second end 63B of the connecting line 63 is electrically connected to the access end 622A of the second control signal line 622 through the bridge pattern 53.

[0155] Exemplarily, one end of the bridging pattern 53 passes through a corresponding via hole in the insulating layer therebelow and contacts the second end 63B of the connecting line 63, thereby achieving electrical connection, and the other end of the bridging pattern 53 passes through a corresponding via hole in the insulating layer therebelow and contacts the access end 622A of the second control signal line 622, thereby achieving electrical connection.

[0156] By adopting the above-mentioned setting method, even if the access end 622A of the second control signal line 622 is far away from the second end 63B of the connecting line 63, electrical connection can be achieved through the bridging pattern 53, which can improve the setting flexibility of the position of the access end 622A of the second control signal line 622 and the second end 63B of the connecting line 63, which is conducive to improving the wiring flexibility of the conductive layer 6.

[0157] In some embodiments, Figure 5A and Figure 5B As shown, the access end 622A of the second control signal line 622 is arranged opposite to the area occupied by the target pin 8.

[0158] The “relative arrangement” here may mean that in the extension direction perpendicular to the first binding area B1 , the access end 622A of the second control signal line 622 and the area occupied by the target pin 8 are directly opposite.

[0159] By adopting the above-mentioned setting method, the distance between the access end 622A of the second control signal line 622 and the target pin 8 can be reduced, the difficulty of connecting the access end 622A of the second control signal line 622 to the target pin 8 can be reduced, and the winding complexity of the connecting line 63 can be reduced, thereby reducing the design and manufacturing difficulty of the dimming panel 100.

[0160] In some embodiments, Figure 5C As shown, Figure 5C As shown, the regulating electrode 52 includes a first sub-line 521, a second sub-line 522, a third sub-line 523 and a fourth sub-line 524 which are connected end to end in sequence; the first sub-line 521 is located on the side of the display area AA close to the first binding area B1, and the first sub-line 521 and the fourth sub-line 524 are disconnected from each other to form an opening, and the above-mentioned opening is arranged opposite to the first binding area B1.

[0161] Exemplarily, the control electrode 52 is in the shape of a ring with an opening.

[0162] Exemplary, combined Figure 5B , the first sub-line 521 is located below the display area AA, the second sub-line 522 is located on the left side of the display area AA, the third sub-line 523 is located above the display area AA, and the fourth sub-line 524 is located on the right side of the display area AA.

[0163] By arranging the opening opposite to the first binding area B1 , the opening can reserve space for other electrodes (such as the driving electrode 51 ), which is beneficial for realizing flexible arrangement of the position of the driving electrode 51 .

[0164] In some embodiments, Figure 5A and Figure 5B As shown, the first control signal line 621 is in an open ring shape.

[0165] For example, Figure 5B and Figure 5D , the first control signal line 621 also includes a fifth sub-line 6211, a sixth sub-line 6212, a seventh sub-line 6213 and an eighth sub-line 6214 which are connected end to end in sequence; Figure 5B The fifth sub-line 6211 is located below the display area AA, the sixth sub-line 6212 is located on the left side of the display area AA, the seventh sub-line 6213 is located above the display area AA, and the eighth sub-line 6214 is located on the right side of the display area AA. The fifth sub-line 6211 and the eighth sub-line 6214 are disconnected and spaced apart to provide a space for other structures to avoid.

[0166] In some examples, such as Figure 5A As shown, the second control signal line 622 has two access terminals 62A, and both access terminals 62A are electrically connected to the target pin 8 .

[0167] For example, Figure 5D As shown, the second control signal line 622 includes a ninth sub-line 6221 and a tenth sub-line 6222 which are disconnected from each other. The two access terminals 62A can be marked as a first access terminal 62A1 and a second access terminal 62A2. The first access terminal 62A1 is located on the ninth sub-line 6221, and the second access terminal 62A2 is located on the tenth sub-line 6222.

[0168] The first access terminal 62A1 and the second access terminal 62A2 are both arranged near the first binding area B1, the first access terminal 62A1 is electrically connected to a target pin 8 in the first binding area B1 through a connecting line, and the second access terminal 62A2 is electrically connected to another target pin 8 in the first binding area B1 through a connecting line; moreover, the target pin 8 electrically connected to the first access terminal 62A1 and the target pin 8 electrically connected to the second access terminal 62A2 are the same type of target pin 8, so that the signal input by the target pin 8 to the second control signal line 622 is the same signal.

[0169] Exemplarily, the target pin 8 in the first binding area B1 is bound to the flexible circuit board, and the flexible circuit board can provide a control signal to the target pin 8 , and the target pin 8 can transmit the control signal to the access end 62A of the second control signal line 622 .

[0170] Through the above-mentioned setting, the control signal can be input into the control signal line 62 from the two access ends 62A of the control signal line 62 at the same time, reducing the attenuation of the control signal in the control signal line 62, making the control voltage in the control signal line 62 more stable, thereby ensuring the stability of the electric field formed between the common electrode layer 7 and the control electrode 52, and ensuring the binding effect on impurity ions.

[0171] In some embodiments, in combination Fig.11 and Fig.12 At least a portion of the first control signal lines 621 are arranged in a grid shape, and / or at least a portion of the second control signal lines 622 are arranged in a grid shape.

[0172] In this way, the flexibility of the first control signal line 621 and / or the second control signal line 622 can be enhanced, which is conducive to enhancing the anti-bending performance of the first control signal line 621 and / or the second control signal line 622, and avoiding the first control signal line 621 and / or the second control signal line 622 from being damaged due to bending. In addition, the above arrangement is also conducive to reducing the shielding effect of the first control signal line 621 on light, and improving the dimming effect of the dimming panel 100.

[0173] In some embodiments, Figure 6 As shown, the minimum distance L1 between the orthographic projection of the control electrode 52 on the first substrate 1 and the orthographic projection of the sealing glue 3 on the first substrate 1 is greater than or equal to 0.2 mm.

[0174] For example, when the control electrode 52 includes a first sub-line 521, a second sub-line 522, a third sub-line 523, and a fourth sub-line 524 connected end to end in sequence, the distances between the first sub-line 521, the second sub-line 522, the third sub-line 523, and the fourth sub-line 524 and the frame sealant 3 may be the same, which can simplify the design difficulty of the dimming panel 100. Alternatively, the distances between the first sub-line 521, the second sub-line 522, the third sub-line 523, and the fourth sub-line 524 and the frame sealant 3 may also be different, which can increase the flexibility of setting the control electrode 52 in the dimming panel 100.

[0175] Exemplary, combined Figure 5B and Figure 5C , the distances between the first sub-line 521 , the second sub-line 522 , the third sub-line 523 , the fourth sub-line 524 and the sealant 3 are the same, and the minimum distance L1 between the control electrode 52 and the sealant 3 is the distance between any position on the control electrode 52 and the sealant 3 .

[0176] Exemplarily, when the distances between the first sub-line 521, the second sub-line 522, the third sub-line 523, the fourth sub-line 524 and the frame sealant 3 are different, the minimum distance L1 may be the distance between the first sub-line 521 and the frame sealant 3, or the distance between the second sub-line 522 and the frame sealant 3, or the distance between the third sub-line 523 and the frame sealant 3, or the distance between the fourth sub-line 524 and the frame sealant 3. The minimum distance among the above distances is taken as the value of L1.

[0177] Illustratively, the distance L1 may be 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm or 0.25 mm, etc.

[0178] Correspondingly, when the dimming panel 100 is larger in size, the distance L1 can be set larger.

[0179] It can be understood that the material of the frame sealant 3 is an organic material, and the frame sealant 3 before curing has a certain fluidity.

[0180] Through the above arrangement, an error space can be left between the frame sealing glue 3 and the control electrode 52. During the process of making the frame sealing glue 3, the material of the frame sealing glue 3 can be prevented from flowing and covering the control electrode 52, thereby avoiding affecting the electric field formed between the control electrode 52 and the common electrode layer 7.

[0181] In some embodiments, Figure 5A and Figure 5B As shown, the functional electrode layer 5 further includes: a transfer electrode 53 located in the peripheral area BB. The transfer electrode 53 is arranged on a side surface of the sealing glue 3 close to the first substrate 1, that is, the transfer electrode 53 is in direct contact with the sealing glue 3. The conductive layer 6 further includes: a common voltage signal line 64 located in the peripheral area BB.

[0182] Exemplarily, the common voltage signal line 64 is used to introduce a common voltage signal and transmit the common voltage signal to the common electrode layer 7 .

[0183] It is understood that there are multiple electrical connection modes between the common voltage signal line 64 and the common electrode layer 7 , which may be determined specifically according to the position of the common electrode layer 7 .

[0184] In another implementation, when the common electrode layer 7 is located between the conductive layer 6 and the functional electrode layer 5, after the transfer electrode 53 is electrically connected to the common electrode layer 7 through the via, the common electrode layer 7 is electrically connected to the common voltage signal line 64 through the via. In this case, in the process of manufacturing the dimming panel 100, two punching processes are required to realize the electrical connection between the transfer electrode 53 and the common electrode layer 7 and the common voltage signal line 64.

[0185] In some embodiments of the present disclosure, Figure 7 As shown, the switching electrode 53 is electrically connected to the common electrode layer 7 , and the switching electrode 53 is also electrically connected to the common voltage signal line 64 .

[0186] For example, a portion of the switching electrode 53 may pass through the insulating layer between the functional electrode layer 5 and the common electrode layer 7 to contact the common electrode layer 7; another portion of the switching electrode 53 may pass through the insulating layer between the functional electrode layer 5 and the common electrode layer 7, the common electrode layer 7, and the insulating layer between the common electrode layer 7 and the conductive layer 6 to contact the common voltage signal line 64. The common voltage signal line 64 is connected to the common electrode layer 7 through the switching electrode 53.

[0187] Similarly, the common voltage signal transmitted in the common voltage signal line 64 can be transmitted to the switching electrode 53, and then transmitted to the common electrode layer 7 through the switching electrode 53. The above-mentioned arrangement in the embodiment of the present disclosure can realize the electrical connection between the switching electrode 53 and the common electrode layer 7 and the common voltage signal line 64 through a single punching process after the insulating layer between the functional electrode layer 5 and the common electrode layer 7 is manufactured. Compared with the above-mentioned other implementation method, one punching process is reduced, so the manufacturing process of the dimming panel 100 can be simplified. In other examples, such as Figure 6As shown, in the case where the common electrode layer 7 is located on a side of the second substrate 2 close to the first liquid crystal layer 4 , the common electrode layer 7 is in contact with the frame sealant 3 , and the frame sealant 3 has conductive particles.

[0188] Exemplarily, the conductive particles of the frame sealant 3 may include gold balls or the like.

[0189] For example, the transfer electrode 53 can pass through the insulating layer between the functional electrode layer 5 and the conductive layer 6 to contact the common voltage signal line 64. Since the common electrode layer 7 is in contact with the sealant 3, the common voltage signal line 64 can be electrically connected to the common electrode layer 7 through the transfer electrode 53 and the sealant 3 in sequence.

[0190] In some embodiments, in combination Fig. 10A , Fig.11 and Fig.12 , a distance L2 between the orthographic projection of the switching electrode 53 on the first substrate 1 and the orthographic projection of the control electrode 52 on the first substrate 1 is less than or equal to 0.05 mm.

[0191] Illustratively, the distance L2 may be 0.05 mm, 0.04 mm, 0.03 mm, 0.02 mm or 0.01 mm, etc.

[0192] The strength of the electric field generated between the two electrodes is inversely proportional to the distance between the two electrodes. Through the above arrangement, the distance between the switching electrode 53 and the control electrode 52 can be made smaller, so that a stronger electric field can be generated between the switching electrode 53 and the control electrode 52, which assists the electric field between the control electrode and the common electrode layer, enhances the binding effect on the impurity ions P, and further improves the light leakage phenomenon in the partial area of ​​the display area AA close to the peripheral area BB.

[0193] In some embodiments, in combination Figure 5A , Figure 5B , Figure 6 and Figure 7 In the part where the orthographic projection of the sealing glue 3 on the first substrate 1 overlaps with the orthographic projection of the switching electrode 53 on the first substrate 1 , the orthographic projection of the sealing glue 3 on the first substrate 1 is located within the range of the orthographic projection of the switching electrode 53 on the first substrate 1 .

[0194] As mentioned above, Figure 6 and Figure 7 In the embodiment, an insulating layer is provided between two adjacent conductive film layers of the dimming panel 100. The insulating layer is generally made of inorganic materials such as silicon nitride or silicon oxide. The bonding strength between the frame sealant 3 and the inorganic materials is relatively weak. Through the above arrangement, the frame sealant 3 can be directly in contact with the transfer electrode 53, thereby enhancing the bonding strength between the frame sealant 3 and the transfer electrode 53.

[0195] For example, Fig.12 As shown, the minimum distance L3 between the edge of the transfer electrode 53 and the edge of the frame sealant 3 may be 0.25 mm.

[0196] The frame-sealing glue 3 is fluid before curing. The above-mentioned setting can reserve an error space between the edge of the transfer electrode 53 and the frame-sealing glue 3 to avoid the frame-sealing glue 3 flowing between the transfer electrode 53 and the control electrode 52 during the process of making the frame-sealing glue 3, thereby avoiding affecting the intensity of the electric field formed between the transfer electrode 53 and the control electrode 52.

[0197] In some examples, such as Fig.12 As shown, the minimum distance L4 between the orthographic projection of the driving electrode 51 on the first substrate 1 and the orthographic projection of the control electrode 52 on the first substrate 1 is greater than or equal to 0.13 mm.

[0198] Exemplarily, the minimum distance L4 between the orthographic projection of the driving electrode 51 on the first substrate 1 and the orthographic projection of the control electrode 52 on the first substrate 1 may be 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm or 0.17 mm, etc.

[0199] Through the above-mentioned setting, it can be ensured that there is a sufficient distance between the driving electrode 51 and the control electrode 52, so as to avoid the control signal transmitted in the control electrode 52 from having an adverse effect on the driving signal transmitted in the driving electrode 51, thereby avoiding affecting the electric field formed between the driving electrode 51 and the common electrode layer 7, thereby ensuring the normal deflection effect of the liquid crystal molecules in the part of the first liquid crystal layer 4 corresponding to the driving electrode 51.

[0200] It is understandable that, if the size of the dimming panel 100 allows, the above L4 can be set as large as possible, so as to minimize the impact of the control signal transmitted in the control electrode 7 on the driving signal transmitted in the driving electrode 51.

[0201] In some embodiments, Fig.13A and Fig. 13B As shown, the driving signal line 61 is arranged in a zigzag shape.

[0202] It should be noted that in order to clearly show the relative position relationship of the components in the dimming panel 100, Fig.13A and Fig. 13B The backlight module 200 and the display panel 300 are not shown in the figure.

[0203] Moiré is a visual phenomenon in which interference fringes are formed when light passes through an object with regular spacing.

[0204] By arranging the driving signal lines 61 in a zigzag shape, it is possible to avoid forming regular intervals between the driving signal lines 61 and avoid generating moiré patterns after light passes through the driving signal lines 61 , thereby facilitating ensuring the display effect of the display device 1000 .

[0205] In some embodiments, in combination Fig.13A , Fig. 13B and Fig.14 In the case where the common electrode layer 7 is located between the conductive layer 6 and the functional electrode layer 5, the driving electrode 51 includes a plurality of driving electrode blocks 511, and the plurality of driving electrode blocks 511 are arranged in a plurality of rows and columns. The driving signal line 61 includes a plurality of sub-driving signal lines 611, and the plurality of sub-driving signal lines 611 extend along the column direction Y and are sequentially arranged at intervals along the row direction X. The common electrode layer 7 has a plurality of through holes K, combined with Fig.15 and Fig.16 , one driving electrode block 511 is electrically connected to one sub-driving signal line 611 through a corresponding through hole K.

[0206] For example, Fig.14 As shown, an insulating layer is provided between the functional electrode layer 5 and the common electrode layer 7 and between the common electrode layer 7 and the conductive layer 6 , and a driving electrode block 511 can pass through the insulating layer and the common electrode layer 7 to be electrically connected to a sub-driving signal line 611 .

[0207] Exemplarily, the plurality of sub-driving signal lines 611 may transmit the same driving signal or different driving signals.

[0208] By setting a plurality of driving electrode blocks 511 and setting a sub-driving signal line 611 electrically connected to each driving electrode block 511, it is possible to achieve independent control of each driving electrode block, and further control of the deflection direction of the liquid crystal molecules in the area corresponding to each driving electrode block 511, and further control of the light passing through each driving electrode block 511, thereby achieving regional control of the light passing through the dimming panel 100.

[0209] In some embodiments, in combination Fig.13A , Fig. 13B and Fig.14 The conductive layer 6 further includes: a plurality of transmission signal lines 65 located in the display area AA, the plurality of transmission signal lines 65 extending along the column direction Y and arranged in sequence and at intervals along the row direction X. A column of driving electrode blocks 511 is arranged corresponding to at least one transmission signal line 65 .

[0210] Exemplarily, one column of driving electrode blocks 511 is disposed corresponding to one transmission signal line 65 , or one column of driving electrode blocks 511 is disposed corresponding to a plurality of transmission signal lines 65 .

[0211] For example, among all the sub-driving signal lines 611, there may be a situation where one of the sub-driving signal lines 611 works abnormally due to a manufacturing defect, which makes it difficult for the sub-driving signal line 611 to transmit a driving signal to the corresponding driving electrode block 511. In this case, an alternative transmission signal line 65 can be electrically connected to the sub-driving signal line 611, and the transmission signal line 65 is used to transmit a driving signal to the above-mentioned driving electrode block 511, so that the corresponding driving electrode block 511 can normally receive the driving signal.

[0212] Through the above configuration, the reliability of the dimming panel 100 can be improved, the defect rate of the dimming panel 100 can be reduced, and thus the production cost of the dimming panel 100 can be reduced.

[0213] In some embodiments, Fig.13A The difference is that in Fig. 13B In the embodiment, the conductive layer 6 further includes: a plurality of light shielding lines 66 located in the display area AA. The plurality of light shielding lines 66 extend along the row direction X and are sequentially spaced along the column direction Y. The orthographic projection of the light shielding line 66 on the first substrate 1 is located between the orthographic projections of two adjacent rows of driving electrode blocks 511 on the first substrate 1.

[0214] It can be understood that there is a gap between two adjacent rows of driving electrode blocks 511. In the case of an electric field formed between the driving electrode blocks 511 and the common electrode layer 7, it is difficult for the electric field to deflect the liquid crystal molecules located in the gap, that is, it is impossible to adjust the light passing through the gap, which may cause light leakage in the display device 1000. The shielding line 66 can block the light. By setting the shielding line 66 between two adjacent rows of driving electrode blocks 511, it can prevent the light from being directly emitted from the gap between the two rows of driving electrode blocks 511, thereby preventing the display device 1000 from leaking light.

[0215] In some embodiments, Fig. 13B As shown, along the column direction Y, the size of the orthographic projection of the shielding line 66 on the first substrate 1 is greater than or equal to the size between the orthographic projections of two adjacent rows of driving electrode blocks 511 on the first substrate 1 .

[0216] Through the above arrangement, the shading line 66 can completely cover the gap between two adjacent rows of driving electrode blocks 511, thereby further improving the shielding effect of the shading line 66 on the light emitted from the gap between two rows of driving electrode blocks 511, thereby preventing light leakage of the display device 1000.

[0217] In some embodiments, in combination Fig. 13B and Fig.17 As shown, the shielding line 66 is disconnected at the intersection with the sub-driving signal line 611.

[0218] Through the above arrangement, interference between the sub-driving signal line 611 and the light shielding line 66 can be avoided, thereby preventing the light shielding line 66 from affecting the transmission of the driving signal in the sub-driving signal line 611 .

[0219] It should be noted that the shading line 66 is also disconnected at the intersection with the transmission signal line 65 , which can also avoid interference between the transmission signal line 65 and the shading line 66 .

[0220] In some embodiments, Fig.13A , Fig. 13B As shown, the display device 1000 provided in the embodiment of the present disclosure further includes: a flexible circuit board 500 bound to the target pin 8 in the first binding area B1 of the dimming panel 100 .

[0221] Exemplarily, the flexible circuit board 500 is used to provide various electrical signals to the dimming panel 100 .

[0222] For example, the flexible circuit board 500 is used to provide the first voltage signal transmitted in the above-mentioned first voltage signal pin 81; or, the flexible circuit board 500 is used to provide the second voltage signal transmitted in the above-mentioned second voltage signal pin 82; or, the flexible circuit board 500 is used to provide the clock signal transmitted in the above-mentioned clock signal pin 83.

[0223] For example, Fig.13A , Fig. 13B As shown, the common voltage signal line 64 is electrically connected to the flexible circuit board 500 , so as to transmit the common voltage signal in the flexible circuit board 500 to the common voltage signal line 64 , and finally to the common electrode layer.

[0224] Through the above arrangement, various electrical signals provided in the flexible circuit board 500 can be transmitted to the dimming panel 100 , so that the dimming panel 100 can work normally.

[0225] In some embodiments, Fig.13A , Fig. 13B As shown, in the dimming panel 100, when the driving electrode 51 in the functional electrode layer 5 includes a plurality of driving electrode blocks 511, and the driving signal line 61 includes a plurality of sub-driving signal lines 611, the peripheral area B of the dimming panel 100 also includes a second binding area B2, and the second binding area B2 is located between the first binding area B1 and the sealing glue 3 of the dimming panel 100. The plurality of sub-driving signal lines 611 extend out of the range defined by the sealing glue 3 and extend to the second binding area B2.

[0226] like Fig.13A , Fig. 13B The display device 1000 further includes: a driving chip 600 bound to the second binding area B2 , and the driving chip 600 is electrically connected to a plurality of driving signal lines 61 .

[0227] Exemplarily, the driving chip 600 is used to provide driving signals to a plurality of driving signal lines 61 .

[0228] Through the above setting, the sub-driving signal line 611 can transmit the driving signal provided by the driving chip 600 to the driving electrode block 511 in the display area AA, so that each driving electrode block 511 can individually control the deflection direction of the liquid crystal in the area corresponding to the driving electrode block 511, thereby realizing the regional control of the light passing through the dimming panel 100.

[0229] In some examples, combined Fig. 10A , Fig.18 and Fig.19 The dimming panel 100 further includes a plurality of driving pins 9 , and one sub-driving signal line 611 is electrically connected to one driving pin 9 .

[0230] Exemplarily, the driving pin 9 is also electrically connected to the driving chip 600 .

[0231] In this way, the driving signal provided by the driving chip 600 can be transmitted to the sub-driving signal line 611 through the driving pin 9 .

[0232] For example, Fig.19 As shown, the driving pins 9 are arranged in two rows, and any two adjacent sub-driving signal lines 611 are electrically connected to the driving pins 9 in different rows.

[0233] There are a large number of driving pins 9, so the size occupied by multiple driving pins 9 in the row direction X is large. By arranging the driving pins 9 into two rows, the size occupied by multiple driving pins 9 in the row direction X can be reduced, which is beneficial to reducing the size of the dimming panel 100 in the row direction X.

[0234] In some embodiments, Fig. 20 As shown, the display device 1000 also includes a polarizer 700, and the polarizer 700 includes a first polarizer 710, a second polarizer 720, and a third polarizer 730. The first polarizer 710 is arranged between the backlight module 200 and the dimming panel 100. The second polarizer 720 is arranged between the dimming panel 100 and the display panel 300. The light transmission axis of the second polarizer 720 and the light transmission axis of the first polarizer 710 are parallel to each other. The third polarizer 730 is arranged on the display panel 300, and the light transmission axis of the third polarizer 730 and the light transmission axis of the first polarizer 710 are perpendicular to each other.

[0235] Exemplarily, the light emitted by the backlight module 200 becomes the first linear polarized light after passing through the first polarizer 710. After the driver chip 600 inputs different driving signals to the driving electrode block 511, the liquid crystal molecules in the first liquid crystal layer 4 corresponding to the different driving electrode blocks have different deflection states, so that the polarization direction of the first linear polarized light can be adjusted to different degrees. Because the light transmission axis of the second polarizer 720 and the light transmission axis of the first polarizer 710 are parallel to each other, after the first linear polarized light passes through the dimming panel 100 and then through the second polarizer 720, the intensity of the light with different polarization directions will change, so the light intensity of the light in different areas can be controlled.

[0236] For example, if the polarization direction of a portion of the first linearly polarized light does not change after passing through the dimming panel 100 , the portion of light can all pass through the second polarizer 720 , and the light intensity of the portion of light does not change after passing through the second polarizer 720 .

[0237] For another example, a portion of the first linear polarized light changes its polarization direction after passing through the dimming panel 100, and the angle of the polarization direction change is between 0° and 90°. This portion of light can partially pass through the second polarizer 720, and the light intensity of this portion of light will become weaker after passing through the second polarizer 720.

[0238] For another example, a portion of the first linear polarized light changes its polarization direction after passing through the dimming panel 100, and the angle of the polarization direction change is 90°. Then, all of this portion of light is blocked by the second polarizer 720, and the light intensity of this portion of light is approximately 0 after passing through the second polarizer 720.

[0239] The light passing through the second polarizer 720 is incident on the display panel 300 and emitted from the third polarizer 730. Since the light in different areas has different intensities when passing through the second polarizer 720, the light passing through the second polarizer 720 can enhance the brightness difference between different display areas in the display device 1000 after passing through the display panel 300 and the third polarizer 730, thereby achieving high contrast display of the display device 1000.

[0240] In some other embodiments, the display mode of the dimming panel 100 of the display device 1000 is a twisted nematic display mode. Fig.21A and Fig.21B As shown, the liquid crystal molecules in the first liquid crystal layer 4 of the dimming panel 100 are marked as first liquid crystal molecules 41. When an electric field is formed between the driving electrode 51 and the common electrode layer 7, as shown in FIG. Fig.21A As shown, the deflection state of the first liquid crystal molecule 41 is a vertical state; when no electric field is formed between the driving electrode 51 and the common electrode layer 7, as shown in FIG. Fig.21BAs shown, the deflection state of the first liquid crystal molecules 41 is a horizontal state.

[0241] According to the optical properties of the first liquid crystal molecules 41, Fig.21A As shown, part of the light emitted by the backlight module 200 becomes the first linear polarized light P1 after passing through the first polarizer 710. The first linear polarized light P1 passes through the first liquid crystal molecules 41 of the first liquid crystal layer 4 with different incident directions. According to the polarization characteristics of the liquid crystal molecules, the polarization direction of the light passing through the first liquid crystal molecules 41 along the optical axis direction of the first liquid crystal molecules 41 does not change, and is still the first linear polarized light P1. Therefore, it can pass through the second polarizer 720 having the same light transmission axis as the first polarizer 710, and finally be emitted to the display panel 300, so as to provide backlight for the display panel 300. After the above-mentioned light is emitted from the display panel 300, a visible area is formed on the light output side of the display device 1000. However, the polarization direction of the light that does not pass through the first liquid crystal molecule 41 along the optical axis direction of the first liquid crystal molecule 41 will change, that is, the polarization direction of the first linear polarized light P1 with a side viewing angle changes after passing through the first liquid crystal molecule 41, and becomes the second linear polarized light P2, and the polarization direction of the second linear polarized light P2 is different from the polarization direction of the first linear polarized light P1. Therefore, it is difficult for the second linear polarized light P2 to pass through the second polarizer 720 whose transmission axis is the same as that of the first polarizer 710, and it is impossible to provide backlight for the display panel 300, thereby forming an invisible area on the light output side of the display device 1000, that is, people in the invisible area cannot clearly see the content displayed by the display device 1000, thereby realizing the anti-peeping function of the display device 1000.

[0242] According to the optical properties of the first liquid crystal molecules 41, Fig.21B As shown, part of the light emitted by the backlight module 200 becomes the first linear polarized light P1 after passing through the first polarizer 710. The first linear polarized light P1 passes through the first liquid crystal molecules 41 of the first liquid crystal layer 4 with different incident directions. According to the optical properties of the liquid crystal molecules, the polarization direction of the first linear polarized light P1 after passing through the first liquid crystal molecules 41 of the first liquid crystal layer 4 is basically unchanged. Therefore, most of the first linear polarized light P1 can pass through the second polarizer 720 having the same absorption axis direction as the first polarizer 710, and finally be emitted to the display panel 300, so as to provide backlight for the display panel 300. In this way, the light emitting side of the display device 1000 is all visible area, thereby realizing shared display of the display device 1000.

[0243] Through the above configuration, the display device 1000 can have a shared display function and an anti-peeping function.

[0244] Furthermore, when the display device 1000 has a shared display function and an anti-peeping function, Fig.13A and Fig. 13BThe driving chip 600 provides different driving signals to the driving signal line 61. Fig. 22 In the embodiment, the flexible circuit board 500 provides a driving signal to the driving signal line 61. In the case where the driving signal line 61 includes a plurality of sub-driving signal lines 611, the flexible circuit board 500 provides the same driving signal to different sub-driving signal lines 611, so that the electric field formed between the common electrode layer 7 and the driving electrode 51 of the dimming panel 100 is the same everywhere, so that the deflection directions of all the first liquid crystal molecules 41 in the first liquid crystal layer 4 are the same, and the polarization directions of the light passing through the first liquid crystal layer 4 are adjusted in the same manner, so that the display device 1000 realizes a shared display function and an anti-peeping function in the entire display area. In this case, the connection method of the driving signal line 61 and the driving electrode 51 in the dimming panel 100 can be referred to. Fig.23 The connection method between the transfer electrode 53 and the common voltage signal line 64 in the dimming panel 100 can be seen in Fig.24 .

[0245] In some other embodiments, the display mode of the first liquid crystal layer 4 in the dimming panel 100 of the display device 1000 is an advanced super-dimensional field switching mode, such as Fig.25 As shown, the display device 1000 further includes an anti-peep film 800 and a polarizer 700, and the polarizer 700 includes a fourth polarizer 740 and a fifth polarizer 750. The anti-peep film 800 is disposed between the backlight module 200 and the dimming panel 100. The fourth polarizer 740 is disposed between the dimming panel 100 and the display panel 300. The fifth polarizer 750 is disposed on the display panel 300.

[0246] Exemplarily, the directions of the transmission axes of the fourth polarizer 740 and the fifth polarizer 750 may be the same, or the directions of the transmission axes of the fourth polarizer 740 and the fifth polarizer 750 may be perpendicular to each other.

[0247] Exemplarily, the privacy film 800 is used to narrow the emission range of the light emitted by the backlight module 200 , that is, the light emitted by the backlight module 200 becomes collimated light after passing through the privacy film 800 .

[0248] Illustratively, when no electric field is generated between the common electrode layer 7 and the driving electrode 51 of the dimming panel 100, the liquid crystal molecules 41 of the first liquid crystal layer 4 are not deflected, and the emission range of the collimated light remains unchanged after passing through the dimming panel 100, and a visible range can only be formed in a partial area of ​​the light-emitting side of the display device 1000, thereby realizing the anti-peeping function of the display device 1000.

[0249] Illustratively, when an electric field is generated between the common electrode layer 7 and the driving electrode 51 of the dimming panel 100, the liquid crystal molecules 41 of the first liquid crystal layer 4 are deflected, and the emission range of the collimated light becomes larger after passing through the dimming panel 100, and a visible range can be formed in the entire area of ​​the light-emitting side of the display device 1000, thereby realizing the shared display function of the display device 1000.

[0250] Through the above configuration, the display device 1000 can have an anti-peeping function and a shared display function.

[0251] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A dimming panel, It is characterized in that The dimming panel has a display area and a peripheral area surrounding the display area; the dimming panel includes: A first substrate and a second substrate arranged opposite to each other; A frame sealant is used to connect the first substrate and the second substrate; the frame sealant is located in the peripheral area and surrounds the display area; A first liquid crystal layer is disposed in a cavity surrounded by the first substrate, the frame sealant and the second substrate; A functional electrode layer is arranged on a side of the first substrate close to the first liquid crystal layer; the functional electrode layer comprises a control electrode located in the peripheral area and a driving electrode located in the display area; the control electrode is located on a side of the frame sealant close to the display area and surrounds at least a portion of the display area; A conductive layer is provided between the first substrate and the functional electrode layer; the conductive layer comprises a control signal line and a drive signal line; the control signal line comprises a first control signal line and a second control signal line connected to each other, the first control signal line is located on a side of the frame sealant close to the display area, the second control signal line is located on a side of the frame sealant away from the display area, the first control signal line is electrically connected to the control electrode; a portion of the drive signal line is located in the display area, and the drive signal line is electrically connected to the drive electrode; and, A common electrode layer, disposed between the conductive layer and the functional electrode layer, or disposed on a side of the second substrate close to the first liquid crystal layer; There is a voltage difference between the control voltage transmitted from the first control signal line to the control electrode and the common voltage transmitted from the common electrode layer.

2. The dimming panel according to claim 1, It is characterized in that The orthographic projection of the first control signal line on the first substrate is located between the orthographic projection of the sealing glue on the first substrate and the orthographic projection of the display area on the first substrate, and at least partially overlaps with the orthographic projection of the control electrode on the first substrate; and / or, The routing morphology of the first control signal line is the same as the routing morphology of the control electrode.

3. The dimming panel according to claim 1, It is characterized in that The peripheral region includes a first binding region; The dimming panel further includes: at least one target pin located in the first binding area, and the second regulation signal line is electrically connected to the target pin.

4. The dimming panel according to claim 3, It is characterized in that The access end of the second control signal line is spaced apart from the first binding area; The conductive layer further includes a connecting wire, a first end of the connecting wire is bound to the target pin, and a second end of the connecting wire is integrated with an access end of the second control signal wire; or, The conductive layer includes a connecting wire, a first end of the connecting wire is bound to the target pin, and a second end of the connecting wire is spaced apart from an access end of the second control signal line; the functional electrode layer also includes a bridging pattern located on the second end of the connecting wire and the access end of the second control signal line, and the second end of the connecting wire is electrically connected to the access end of the second control signal line through the bridging pattern.

5. The dimming panel according to claim 4, It is characterized in that The access end of the second control signal line is arranged relative to the area occupied by the target pin.

6. The dimming panel according to claim 3, It is characterized in that The regulating electrode includes a first sub-line, a second sub-line, a third sub-line and a fourth sub-line which are connected end to end in sequence, the first sub-line is located on a side of the display area close to the first binding area, the first sub-line and the fourth sub-line are disconnected from each other to form an opening, and the opening is arranged opposite to the first binding area.

7. The dimming panel according to claim 6, It is characterized in that The first control signal line is in the shape of an open ring; The second control signal line has two access ends, and both of the access ends are electrically connected to the target pin.

8. The dimming panel according to claim 1, It is characterized in that At least a portion of the first control signal lines are arranged in a grid shape, and / or at least a portion of the second control signal lines are arranged in a grid shape.

9. The dimming panel according to claim 1, It is characterized in that The minimum distance between the orthographic projection of the control electrode on the first substrate and the orthographic projection of the frame sealing adhesive on the first substrate is greater than or equal to 0.2 mm.

10. The dimming panel according to claim 1, It is characterized in that The functional electrode layer further includes: a transfer electrode located in the peripheral area; the transfer electrode is arranged on a surface of the frame sealant on one side close to the first substrate; The conductive layer further includes: a common voltage signal line located in the peripheral area; In the case where the common electrode layer is located between the conductive layer and the functional electrode layer, the switching electrode is electrically connected to the common electrode layer, and the switching electrode is also electrically connected to the common voltage signal line; In the case where the common electrode layer is located on a side of the second substrate close to the first liquid crystal layer, the common electrode layer is in contact with the frame sealant, the frame sealant has conductive particles, and the transfer electrode is electrically connected to the common voltage signal line.

11. The dimming panel according to claim 10, It is characterized in that A distance between an orthographic projection of the switching electrode on the first substrate and an orthographic projection of the control electrode on the first substrate is less than or equal to 0.05 mm.

12. The dimming panel according to claim 10 or 11, It is characterized in that The orthographic projection of the switching electrode on the first substrate at least partially overlaps with the orthographic projection of the frame sealing adhesive on the first substrate.

13. The dimming panel according to claim 1, It is characterized in that A minimum distance between an orthographic projection of the driving electrode on the first substrate and an orthographic projection of the regulating electrode on the first substrate is greater than or equal to 0.13 mm.

14. The dimming panel according to claim 1, It is characterized in that The driving signal line is arranged in a zigzag shape.

15. The dimming panel according to claim 1, It is characterized in that In the case where the common electrode layer is located between the conductive layer and the functional electrode layer, the driving electrode comprises a plurality of driving electrode blocks, and the plurality of driving electrode blocks are arranged in a plurality of rows and columns; The driving signal line includes a plurality of sub-driving signal lines, and the plurality of sub-driving signal lines extend along the column direction and are sequentially arranged at intervals along the row direction; The common electrode layer has a plurality of through holes, and a driving electrode block passes through a corresponding through hole and is electrically connected to a sub-driving signal line.

16. The dimming panel according to claim 15, It is characterized in that The conductive layer further comprises: a plurality of transmission signal lines located in the display area, the plurality of transmission signal lines extending along the column direction and arranged in sequence and spaced apart along the row direction; A column of driving electrode blocks is arranged corresponding to at least one transmission signal line.

17. The dimming panel according to claim 15, It is characterized in that The conductive layer further comprises: a plurality of light shielding lines located in the display area; the plurality of light shielding lines extend along the row direction and are sequentially spaced apart along the column direction; The orthographic projection of the shielding line on the first substrate is located between the orthographic projections of two adjacent rows of driving electrode blocks on the first substrate.

18. The dimming panel according to claim 17, It is characterized in that Along the column direction, a size of an orthographic projection of the shielding line on the first substrate is greater than or equal to a size between orthographic projections of two adjacent rows of driving electrode blocks on the first substrate.

19. The dimming panel according to claim 17 or 18, It is characterized in that The shielding line is disconnected at a position where it intersects with the sub-driving signal line.

20. A display device, It is characterized in that The display device comprises: Backlight module; A dimming panel disposed on the light-emitting side of the backlight module, wherein the dimming panel is the dimming panel according to any one of claims 1 to 19; The display panel is arranged on a side of the dimming panel away from the backlight module.

21. The display device according to claim 20, It is characterized in that The display device further includes: a flexible circuit board bound to the target pin in the first binding area of ​​the dimming panel.

22. The display device according to claim 21, It is characterized in that In the dimming panel, the driving electrodes in the functional electrode layer include a plurality of driving electrode blocks, and the driving signal lines include a plurality of sub-driving signal lines; The peripheral area of ​​the dimming panel further includes a second binding area, and the second binding area is located between the first binding area and the frame sealant of the dimming panel; The plurality of sub-driving signal lines extend out of the range defined by the frame sealant and extend to the second binding area; The display device further includes: a driving chip bound to the second binding area, wherein the driving chip is electrically connected to the plurality of driving signal lines.

23. The display device according to any one of claims 20 to 22, It is characterized in that The display device further includes: A first polarizer disposed between the backlight module and the dimming panel; A second polarizer is disposed between the dimming panel and the display panel; the light transmission axis of the second polarizer is parallel to the light transmission axis of the first polarizer; and, A third polarizer is disposed on the display panel, wherein a light transmission axis of the third polarizer and a light transmission axis of the first polarizer are perpendicular to each other.

24. The display device according to any one of claims 20 to 22, It is characterized in that The display device further includes: An anti-peep film disposed between the backlight module and the dimming panel; A fourth polarizer disposed between the dimming panel and the display panel; A fifth polarizer is disposed on the display panel.

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