Display panel and display device

Abstract

The present invention discloses a display panel and a display device, the display panel includes an array substrate, an opposing substrate, and a liquid crystal layer located between the array substrate and the opposing substrate; the array substrate includes a first substrate and a plurality of thin film transistors; the thin film transistors are located on a side of the first substrate close to the liquid crystal layer, and include an active layer and a gate, and the gate is located on a side of the active layer away from the first substrate; the array substrate also includes a plurality of first conductive structures; the first conductive structure is located on a side of the active layer close to the first substrate, and is insulated from the active layer; the orthographic projection of the first conductive structure on the first substrate overlaps with the orthographic projection of the active layer on the first substrate; the display panel also includes an anti-peeping electrode layer; the anti-peeping electrode layer is located on a side of the film layer where the first conductive structure is located away from the first substrate, and includes at least one anti-peeping electrode; all anti-peeping electrodes are electrically connected to all first conductive structures. The technical solution of the embodiment of the present invention can at least reduce flicker and improve display uniformity.

Description

Technical Field

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

[0002] Thin Film Transistor-Liquid Crystal Display (TFT-LCD) has the characteristics of small size, low power consumption and no radiation. It has developed rapidly in recent years and occupies a dominant position in the current flat panel display market. However, with the development of society and the enrichment of material conditions, while display devices provide people with many conveniences, privacy leaks are always inevitable. To solve this problem, LCDs with anti-peeping functions came into being.

[0003] In the related art, the anti-peeping function is achieved by integrating an anti-peeping electrode in the liquid crystal display panel, using the anti-peeping electrode to adjust the electric field applied to the liquid crystal, and then adjusting the deflection angle of the liquid crystal. However, studies have found that liquid crystal displays with integrated anti-peeping functions will have problems such as uneven display and flickering. Summary of the invention

[0004] The present invention provides a display panel and a display device, so as to at least reduce flicker and improve display uniformity.

[0005] According to one aspect of the present invention, there is provided a display panel, comprising an array substrate, an opposite substrate, and a liquid crystal layer located between the array substrate and the opposite substrate;

[0006] The array substrate includes a first substrate and a plurality of thin film transistors; the thin film transistors are located on a side of the first substrate close to the liquid crystal layer and include an active layer and a gate, and the gate is located on a side of the active layer away from the first substrate;

[0007] The array substrate further includes a plurality of first conductive structures; the first conductive structures are located on a side of the active layer close to the first substrate and are insulated from the active layer; the orthographic projection of the first conductive structures on the first substrate overlaps with the orthographic projection of the active layer on the first substrate;

[0008] The display panel also includes an anti-peeping electrode layer; the anti-peeping electrode layer is located on a side of the film layer where the first conductive structure is located away from the first substrate, and includes at least one anti-peeping electrode; all the anti-peeping electrodes are electrically connected to all the first conductive structures.

[0009] According to another aspect of the present invention, there is provided a display device, comprising a backlight module and a display panel provided by any embodiment of the present invention;

[0010] The backlight module is located on a side of the array substrate away from the opposite substrate.

[0011] The technical solution of the embodiment of the present invention is to set a first conductive structure on a side of the active layer close to the substrate, so that the first conductive structure is insulated from the active layer and overlaps in a direction perpendicular to the first substrate, and all the anti-peeping electrodes and all the first conductive structures are electrically connected, so that in the anti-peeping mode, the voltage applied to the anti-peeping electrode can be simultaneously applied to the first conductive structure. In this way, the first conductive structure can be used as the bottom gate of the thin film transistor to form a double-gate transistor, thereby increasing the on-current of the thin film transistor and reducing the leakage current of the thin film transistor. Further, by reducing the leakage current of the thin film transistor, the phenomenon of flickering and deterioration of display unevenness in the anti-peeping mode can be alleviated, the flicker of the display panel can be reduced, and the display uniformity can be improved; in addition, since the on-current of the thin film transistor is increased, the charging capacity of the pixel electrode can be enhanced, and the display effect of the high-frequency display can be improved.

[0012] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural schematic diagram of an existing liquid crystal display panel;

[0015] Figure 2 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0016] Figure 3 is a schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention;

[0017] Figure 4 is along Figure 3 A schematic diagram of the cross-sectional structure of the display panel taken along line BB';

[0018] Figure 5 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0019] Figure 6 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0020] Figure 7is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0021] Figure 8 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0022] Fig. 9 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0023] Fig.10 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0024] Fig.11 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0025] Fig.12 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0026] Fig.13 is along Fig.12 A schematic cross-sectional structure diagram of the display panel taken at CC';

[0027] Fig.14 is along Fig.12 A schematic diagram of the cross-sectional structure of the display panel taken at DD';

[0028] Fig.15 is along Fig.12 A schematic diagram of the cross-sectional structure of the display panel taken at EE';

[0029] Fig.16 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention;

[0030] Fig.17 is a driving timing diagram of a display panel in an anti-peeping mode provided by an embodiment of the present invention;

[0031] Fig.18 is a schematic diagram of an equivalent circuit in which an anti-peeping electrode and a first conductive structure are electrically connected in a display panel provided by an embodiment of the present invention;

[0032] Fig.19 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] The liquid crystal display panel includes a common electrode and thin film transistors and pixel electrodes arranged in an array. The thin film transistors are electrically connected to the pixel electrodes. By controlling the on and off of each thin film transistor, the pixel voltage can be transmitted to each pixel electrode in turn, forming an electric field between the pixel electrode and the common electrode. By controlling the magnitude of the electric field between the pixel electrode and the common electrode, the deflection angle of the liquid crystal can be controlled, thereby achieving control of the brightness of different sub-pixels. However, due to the leakage of thin film transistors and other reasons, the liquid crystal display panel has problems such as flickering and uneven display.

[0035] As described above, after the anti-peeping function is integrated, the flickering problem and display unevenness problem of the liquid crystal display panel become more serious. For example, Figure 1 Schematic diagram of the structure of an existing liquid crystal display panel. Figure 1 As shown, the liquid crystal display panel includes an array substrate 01, a color filter substrate 02, and a liquid crystal layer 03 located between the array substrate 01 and the color filter substrate 02. The pixel electrode 04 and the common electrode 05 are both located on the array substrate 01, and the anti-peeping electrode 06 is located on the color filter substrate 02. At this time, a horizontal electric field is formed between the pixel electrode 04 and the common electrode 05, and a vertical electric field is formed between the anti-peeping electrode 06 and the common electrode 05. In this way, in the normal display mode, the liquid crystal will deflect in the horizontal direction under the action of the horizontal electric field. In the anti-peeping mode, due to the addition of the vertical electric field, the liquid crystal will deflect in the vertical direction at the same time, resulting in that the light of a large viewing angle cannot be emitted from the display panel, so that the viewer within the large viewing angle range can only see the black display screen, but cannot see the displayed content, thereby realizing the anti-peeping function (black state anti-peeping).

[0036] Since liquid crystal molecules have polarization, if the same-direction voltage is applied to the liquid crystal molecules for a long time, the liquid crystal molecules will be polarized. Even if the voltage is cancelled, the liquid crystal molecules will no longer be able to rotate due to the change of the electric field due to the destruction of their characteristics. To solve this problem, the relevant technology drives the liquid crystal display panel through AC, that is, flips the liquid crystal molecules at a certain frequency when displaying the picture to prevent the liquid crystal molecules from being fixed in the same direction and losing their activity. At present, the liquid crystal display panel supports a variety of flipping modes, such as point flipping mode, row flipping mode, column flipping mode, etc. The way to achieve flipping is mainly to continuously alternate the positive and negative polarity of the source voltage of the thin film transistor, or to continuously alternate the positive and negative polarity of the common electrode to achieve the purpose of AC driving. Taking the continuous alternation of the positive and negative polarity of the source electrode of the thin film transistor as an example, since the vertical electric field between the anti-peeping electrode and the common electrode is in the same direction, the column flipping mode is adopted to make the voltage polarity on the two adjacent columns of pixel electrodes opposite. In this way, when the vertical electric field acts on the positive liquid crystal and the negative liquid crystal, the deflection degree of the liquid crystal is different, which leads to the deterioration of flickering and uneven display. Among them, the positive liquid crystal can be understood as the liquid crystal corresponding to the pixel electrode with positive polarity, and the negative liquid crystal can be understood as the liquid crystal corresponding to the pixel electrode with negative polarity.

[0037] To solve the above problems, an embodiment of the present invention provides a display panel, including an array substrate, an opposing substrate, and a liquid crystal layer located between the array substrate and the opposing substrate; the array substrate includes a first substrate and a plurality of thin film transistors; the thin film transistors are located on a side of the first substrate close to the liquid crystal layer, and include an active layer and a gate, and the gate is located on a side of the active layer away from the first substrate; the array substrate also includes a plurality of first conductive structures; the first conductive structure is located on a side of the active layer close to the first substrate, and is insulated from the active layer; the orthographic projection of the first conductive structure on the first substrate overlaps with the orthographic projection of the active layer on the first substrate; the display panel also includes an anti-peeping electrode layer; the anti-peeping electrode layer is located on a side of the film layer where the first conductive structure is located away from the first substrate, and includes at least one anti-peeping electrode; all the anti-peeping electrodes are electrically connected to all the first conductive structures.

[0038] By adopting the above scheme, the voltage applied to the anti-peeping electrode can be simultaneously applied to the first conductive structure, so that the first conductive structure can be used as the bottom gate of the thin film transistor to form a dual-gate transistor, thereby increasing the on-current of the thin film transistor and reducing the leakage current of the thin film transistor. Furthermore, by reducing the leakage current of the thin film transistor, the phenomenon of flickering and deterioration of display unevenness in the anti-peeping mode can be alleviated, the flicker of the display panel can be reduced, and the display uniformity can be improved. In addition, since the on-current of the thin film transistor is increased, the charging capacity of the pixel electrode can be enhanced, and the display effect of the high-frequency display can be improved.

[0039] The above is the core idea of ​​this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application.

[0040] Figure 2 is a schematic diagram of the structure of a display panel provided by an embodiment of the present invention, wherein the display panel is a liquid crystal display panel, such as Figure 2 As shown, the display panel 100 includes an array substrate 1, an opposing substrate 2, and a liquid crystal layer 3 located between the array substrate 1 and the opposing substrate 2; the array substrate 1 includes a first substrate 11 and a plurality of thin film transistors 12; the thin film transistor 12 is located on a side of the first substrate 11 close to the liquid crystal layer 3, and includes an active layer 121 and a gate 122, and the gate 122 is located on a side of the active layer 121 away from the first substrate 11; the array substrate 1 also includes a plurality of first conductive structures 13; the first conductive structure 13 is located on a side of the active layer 121 close to the first substrate 11, and is insulated from the active layer 121; the orthographic projection of the first conductive structure 13 on the first substrate 11 overlaps with the orthographic projection of the active layer 121 on the first substrate 11; the display panel 100 also includes an anti-peeping electrode layer 40; the anti-peeping electrode layer 40 is located on a side of the film layer where the first conductive structure 13 is located away from the first substrate 11, and includes at least one anti-peeping electrode 4; all anti-peeping electrodes 4 are electrically connected to all first conductive structures 13.

[0041] The array substrate 1 includes a plurality of thin film transistors 12 arranged in an array. Figure 2 Only two thin film transistors 12 are shown. Figure 2 As shown, the thin film transistor 12 includes an active layer 121, a gate 122, a source 123 and a drain 124. The gate 122 is located on a side of the active layer 121 away from the first substrate 11 and is insulated from the active layer 121. The source 123 and the drain 124 are located on a side of the active layer 121 away from the first substrate 11 and form ohmic contact with the active layer 121.

[0042] Continue to see Figure 2 The array substrate 1 further includes a plurality of pixel electrodes 15 and at least one common electrode 14, wherein the pixel electrode 15 is electrically connected to the first electrode of the thin film transistor 12, and the common electrode 14 is located on a side of the pixel electrode 15 away from the liquid crystal layer 3. In this way, a horizontal electric field can be formed between the pixel electrode 15 and the common electrode 14, which is conducive to achieving wide viewing angle display.

[0043] The first electrode of the thin film transistor 12 may be either the source electrode 123 or the drain electrode 124 , which is not limited in the embodiment of the present invention. Figure 2The example of the pixel electrode 15 being electrically connected to the drain electrode 124 of the thin film transistor 12 is used for illustration. By controlling the thin film transistor 12 to be turned on, a pixel voltage can be applied to the corresponding pixel electrode 15, which will be described in detail later.

[0044] It should be noted that Figure 2 The array substrate 1 includes a common electrode 14 as an example for illustration. In this case, the common electrode 14 is a surface electrode. To prevent the common electrode 14 from shielding the electric field, the common electrode 14 may be located on a side of the pixel electrode 15 away from the liquid crystal layer 3. Figure 2 As shown, when the common electrode 14 is located at a side of the pixel electrode 15 away from the liquid crystal layer 3, the pixel electrode 15 can be electrically connected to the thin film transistor 12 by providing an opening on the common electrode 14. In addition, in other embodiments, the array substrate 1 may include a plurality of common electrodes 14, and the orthographic projection of each common electrode 14 on the first substrate 11 is arranged not to overlap with the orthographic projection of the pixel electrode 15 on the first substrate 11, so as to form a horizontal electric field.

[0045] like Figure 2 As shown, optionally, the counter substrate 2 is a color filter substrate, including a second substrate 21 and a plurality of color resist units 22 located on a side of the second substrate 21 close to the liquid crystal layer 3, and a third light shielding layer (black matrix) 23 is provided between adjacent color resist units 22. The plurality of color resist units 22 may include color resist units of at least two different colors, and filter light of at least two colors to achieve color display. Exemplarily, in one embodiment, the plurality of color resist units 22 may include a red color resist unit, a green color resist unit, and a blue color resist unit.

[0046] like Figure 2 As shown, the display panel 100 further includes an anti-peeping electrode layer 40, and the anti-peeping electrode layer 40 includes at least one anti-peeping electrode 4. By applying a voltage to the anti-peeping electrode 4, an electric field is formed between the anti-peeping electrode 4 and the common electrode 14, so that the anti-peeping function can be achieved. Based on different anti-peeping methods, the anti-peeping electrode 4 can have different settings, which will not be described here for the time being, and will be described in detail later. Figure 2 The example in which the anti-peeping electrode layer 40 is disposed on the counter substrate 2 and includes one anti-peeping electrode 4 is used for illustration.

[0047] Furthermore, in this embodiment, a first conductive structure 13 is further provided in the array substrate 1, and the first conductive structure 13 is located on a side of the active layer 121 close to the first substrate 11, and is insulated from the active layer 121, and the orthographic projection of the first conductive structure 13 on the first substrate 11 overlaps with the orthographic projection of the active layer 121 on the first substrate 11, and all the anti-peeping electrodes 4 are electrically connected to all the first conductive structures 13. Among them, the first conductive structure 13 can be any solid structure with conductive capability known to those skilled in the art, and the embodiment of the present invention is not limited to this.

[0048] In this embodiment, all the anti-peeping electrodes 4 and all the first conductive structures 13 are electrically connected, so that in the anti-peeping mode, the voltage applied to the anti-peeping electrode 4 can be simultaneously applied to the first conductive structure 13. In this way, the first conductive structure 13 can be used as the bottom gate of the thin film transistor 12 to form a double-gate transistor, thereby reducing the leakage current of the thin film transistor 12. Furthermore, by reducing the leakage current of the thin film transistor, the phenomenon of flickering and worsening of display unevenness in the anti-peeping mode can be alleviated, the flicker of the display panel can be reduced, and the display uniformity can be improved.

[0049] In addition, the lower the refresh rate of the display, the more serious the flicker phenomenon, so the anti-peeping function is usually applied to high-frequency displays. However, in high-frequency displays, due to the high refresh rate, the charging time of each row of pixel electrodes is shortened, which may cause the voltage of the pixel electrode to be difficult to reach the expected voltage, thereby reducing the display effect. The technical solution of the embodiment of the present invention electrically connects all the anti-peeping electrodes 4 and all the first conductive structures 13, so that in the anti-peeping mode, the voltage applied to the anti-peeping electrode 4 can be simultaneously applied to the first conductive structure 13. In this way, the first conductive structure 13 can be used as the bottom gate of the thin-film transistor 12 to form a dual-gate transistor, thereby increasing the on-current of the thin-film transistor, thereby enhancing the charging capacity of the pixel electrode and improving the display effect of the high-frequency display.

[0050] Based on the above embodiments, continue to refer to Figure 2 Optionally, the array substrate 1 includes a metal shading layer 160, which is located on a side of the active layer 121 close to the first substrate 11 and is insulated from the active layer 121; the metal shading layer 160 includes a plurality of metal shading blocks 16, and the orthographic projection of the metal shading block 16 on the first substrate 11 overlaps with the orthographic projection of the active layer 121 on the first substrate 11; the metal shading block 16 is reused as the first conductive structure 13.

[0051] The thin film transistor 12 is relatively sensitive to light, and is prone to threshold voltage drift and other defects after being exposed to light, thereby affecting the display effect. Since the liquid crystal display panel cannot emit light by itself, it is necessary to set a backlight module on the back side of the liquid crystal display panel (that is, the side of the array substrate 1 away from the liquid crystal layer 3). The backlight module provides a display light source, and uses the liquid crystal, the upper polarizer 1001 and the lower polarizer 1002 in the liquid crystal display panel to control the amount of light output, thereby realizing display. By setting a metal light shielding block 16 on the side of the active layer 121 close to the first substrate 11, the metal light shielding block 16 can be used to block the light irradiated from the backlight module to the active layer 121, thereby reducing the performance impact on the thin film transistor 12.

[0052] In this embodiment, by reusing the metal light shielding block 16 as the first conductive structure 13, in the anti-peeping mode, the voltage applied to the anti-peeping electrode 4 can be simultaneously applied to the metal light shielding block 16, so that the metal light shielding block 16 serves as the bottom gate of the thin film transistor 12, forming a double-gate transistor, increasing the on-current of the thin film transistor 12, reducing the leakage current of the thin film transistor 12, thereby reducing the flicker of the display panel, improving the display uniformity, enhancing the charging capacity of the pixel electrode, and improving the display effect of the high-frequency display. In the normal display mode, no voltage is applied to the anti-peeping electrode 4. At this time, there is no voltage on the metal light shielding block 16, which can play the above-mentioned light shielding role and reduce the impact on the performance of the thin film transistor.

[0053] Optionally, the orthographic projection of the channel region of the active layer 121 on the first substrate 11 is located within the orthographic projection range of the first conductive structure 13 (metal light shielding block 16) on the first substrate 11, so as to effectively shield the light irradiated by the backlight module to the active layer 121. In addition, in other embodiments, the orthographic projection of the first conductive structure 13 (metal light shielding block 16) on the first substrate 11 can also be arranged to cover the orthographic projection of the active layer 121 on the first substrate 11.

[0054] Figure 3 is a schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention, Figure 4 is along Figure 3 The cross-sectional structure diagram of the display panel taken at BB' is as follows: Figure 3 and Figure 4 As shown, optionally, the display panel 100 includes a display area AA and a non-display area NA located on at least one side of the display area AA; the display panel 100 also includes a first connection structure 5; the first connection structure 5 is located in the non-display area NA and includes a plurality of first connection divisions 51, and the first connection divisions 51 extend in a direction perpendicular to the plane where the first substrate 11 is located; the anti-peeping electrode 4 and the first conductive structure 13 are electrically connected through the first connection structure 5.

[0055] Specifically, the light source provided by the backlight module is emitted through the liquid crystal display panel, so the design of the liquid crystal display panel needs to consider the light transmittance. Figure 2 As shown, the thin film transistor 12 in the array substrate 1 is usually arranged corresponding to the third light shielding layer 23 in the counter substrate 2 to reduce light loss. In this embodiment, by arranging the first connection structure 5 for connecting the anti-peeping electrode 4 and the first conductive structure 13 in the non-display area NA, the influence on light propagation can be reduced and light loss can be reduced.

[0056] Furthermore, since the non-display area NA of the display panel 100 is provided with other circuit structures and signal lines, such as a gate drive circuit, an electrostatic protection circuit, etc., the embodiment of the present invention provides a first connection structure 5 including a plurality of first connection sections 51 extending in a direction perpendicular to the plane where the first substrate 11 is located, rather than a whole-surface connection structure in the non-display area NA. While ensuring the electrical connection between the anti-peeping electrode 4 and the first conductive structure 13, the display area AA and the non-display area NA will not be cut off in the direction perpendicular to the plane where the first substrate 11 is located, thereby avoiding affecting the original circuit structure and signal line settings.

[0057] In addition, to achieve the anti-peeping function, the anti-peeping electrode 4 can be arranged on the array substrate 1, or the anti-peeping electrode 4 can be arranged on the opposing substrate 2. When the anti-peeping electrode 4 is located on the opposing substrate 2, since the first conductive structure 13 is located on the array substrate 1, the first connecting structure 5 needs to pass through the layer where the liquid crystal layer 3 is located in order to electrically connect the anti-peeping electrode 4 and the first conductive structure 13. In this case, by arranging the first connecting structure 5 in the non-display area NA, the first connecting structure 5 can be prevented from affecting the liquid crystal. When the anti-peeping electrode 4 is located on the array substrate 1, the first connecting structure 5 can be arranged in the non-display area NA to reduce the influence on the propagation of light. Of course, in other embodiments, since the anti-peeping electrode 4 and the first conductive structure 13 are both located on the array substrate 1, the first connecting structure 5 does not need to pass through the layer where the liquid crystal layer 3 is located. Therefore, the first connecting structure 5 can also be arranged in the display area AA. The embodiment of the present invention only takes the first connecting structure 5 located in the non-display area NA as an example for explanation.

[0058] On the basis of the above-mentioned embodiments, the technical solutions of the embodiments of the present invention are further described in detail below based on different configurations of the anti-peeping electrode layer.

[0059] Reference Figure 3 and Figure 4 As a feasible setting method, optionally, the opposing substrate 2 includes a second substrate 21, the anti-peeping electrode 4 is located on a side of the second substrate 21 close to the liquid crystal layer 3, and the first connecting portion 51 passes through the layer where the liquid crystal layer 3 is located; the array substrate 1 also includes at least one common electrode 14, and the anti-peeping electrode 4 forms a vertical electric field with the common electrode 14.

[0060] In this embodiment, the anti-peeping electrode layer is located on the opposing substrate 2. At this time, the first connecting portion 51 needs to pass through the layer where the liquid crystal layer 3 is located to electrically connect the anti-peeping electrode 4 and the first conductive structure 13. Figure 4 As shown, a sealing glue 6 is arranged around the liquid crystal, and the first connecting portion 51 can penetrate the sealing glue 6 to avoid affecting the liquid crystal.

[0061] When the anti-peeping electrode layer is located on the opposing substrate 2, the anti-peeping electrode layer may include one anti-peeping electrode 4 or multiple anti-peeping electrodes 4. As long as the anti-peeping electrode 4 and the common electrode 14 form a vertical electric field, the anti-peeping function can be achieved. The specific principle is described above and will not be repeated here.

[0062] Specifically, when the anti-peeping electrode layer includes one anti-peeping electrode 4, the anti-peeping electrode 4 is a surface electrode that at least covers the display area AA, and whether the array substrate 1 includes one common electrode 14 or multiple common electrodes 14, the anti-peeping electrode 4 can overlap with the orthographic projection of the common electrode 14 on the plane where the first substrate 11 is located, so that the anti-peeping electrode 4 and the common electrode 14 can form a vertical electric field in the anti-peeping mode. Similarly, when the array substrate 1 includes one common electrode 14, whether the anti-peeping electrode layer includes one anti-peeping electrode 4 or multiple anti-peeping electrodes 4, the anti-peeping electrode 4 and the common electrode 14 can form a vertical electric field. When the anti-peeping electrode layer includes multiple anti-peeping electrodes 4 and the array substrate 1 includes multiple common electrodes 14, the orthographic projection of the anti-peeping electrode 4 on the first substrate 11 can be set to overlap with the orthographic projection of the common electrode 14 on the first substrate 11, so that the anti-peeping electrode 4 and the common electrode 14 form a vertical electric field.

[0063] In the following, firstly, taking the case where the anti-peeping electrode layer is located on the counter substrate 2 and includes an anti-peeping electrode 4 as an example, the connection method between the anti-peeping electrode 4 and the first conductive structure 13 is described in detail.

[0064] Reference Figure 3 The anti-peeping electrode layer 40 includes an anti-peeping electrode 4, the orthographic projection of the anti-peeping electrode 4 on the first substrate 11 covers the orthographic projection of the display area AA on the first substrate 11, and has a portion located in the non-display area NA; the first connecting portion 51 overlaps with the orthographic projection of the anti-peeping electrode 4 on the first substrate 11.

[0065] Specifically, Figure 4 As shown, when the anti-peeping electrode layer 40 includes an anti-peeping electrode 4, by setting the anti-peeping electrode 4 on the first substrate 11 to have a portion of its orthographic projection located in the non-display area NA, the first connecting portion 51 located in the non-display area NA overlaps with the orthographic projection of the portion of the anti-peeping electrode 4 located in the non-display area NA on the first substrate 11, thereby electrically connecting the first connecting portion 51 to the anti-peeping electrode 4.

[0066] Figure 5 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Figure 6 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention. Figure 3 , Figure 5 or Figure 6 As shown, optionally, a plurality of first conductive structures 13 are arranged in an array along a first direction x and a second direction y; the array substrate 1 further comprises a second connection structure 17; the second connection structure 17 comprises a plurality of second connection sub-portions 171 extending along the first direction x and arranged along the second direction y, one second connection sub-portion 171 being electrically connected to a plurality of first conductive structures 13 arranged along the first direction x; the second connection sub-portion 171 having a portion extending to the non-display area NA; and / or, the second connection structure 17 comprises a plurality of third connection sub-portions 172 extending along the second direction y and arranged along the first direction x, one third connection sub-portion 172 being electrically connected to a plurality of first conductive structures 13 arranged along the second direction y; the third connection sub-portion 172 having a portion extending to the non-display area NA. The first connection sub-portion 51 overlaps with the orthographic projection of the second connection structure 17 on the first substrate 11.

[0067] The first direction x and the second direction y may be a row direction and a column direction respectively. For example, the row direction may be consistent with an extension direction of the scan line, and the column direction may be consistent with an extension direction of the data line.

[0068] Specifically, since the plurality of first conductive structures 13 are independent of each other, in order to electrically connect all the anti-peeping electrodes 4 and all the first conductive structures 13, the first conductive structures 13 need to be electrically connected first. In this embodiment, the second connecting structure 17 is used to electrically connect the first conductive structures 13, and the second connecting structure 17 is extended to the non-display area NA so as to serve as a bridge for electrically connecting the first connecting structure 5 and the first conductive structure 13. Since the anti-peeping electrode 4 is a surface electrode, at least part of the first conductive structure 13 is electrically connected through the second connecting structure 17, and the first connecting section 51 is reasonably set, so that all the anti-peeping electrodes 4 can be electrically connected to all the first conductive structures 13.

[0069] For example, Figure 3 and Figure 4 As shown, in one embodiment, the optional second connection structure 17 includes a plurality of second connection divisions 171 extending along the first direction x and arranged along the second direction y. In this way, the plurality of first conductive structures 13 arranged along the first direction x can be electrically connected through the second connection divisions 171. By arranging the orthographic projections of the first connection division 51 and the second connection structure 17 (i.e., the second connection division 171) on the first substrate 11 to overlap, the first connection division 51 and the second connection division 171 can be electrically connected, thereby achieving electrical connection between the anti-peeping electrode 4 and all the first conductive structures 13.

[0070] For example, Figure 5 As shown, in another embodiment, the optional second connection structure 17 includes a plurality of third connection divisions 172 extending along the second direction y and arranged along the first direction x. In this way, the plurality of first conductive structures 13 arranged along the second direction y can be electrically connected through the third connection divisions 172. By arranging the first connection division 51 and the second connection structure 17 (i.e., the third connection division 172) to overlap their orthographic projections on the first substrate 11, the first connection division 51 and the third connection division 172 can be electrically connected, thereby achieving electrical connection between the anti-peeping electrode 4 and all the first conductive structures 13.

[0071] For example, Figure 6 As shown, in another embodiment, the optional second connection structure 17 includes the second connection sub-portion 171 and the third connection sub-portion 172 at the same time, so that all the first conductive structures 13 can be electrically connected, and then by setting the first connection sub-portion 51 and the second connection structure 17 to overlap the orthographic projection on the first substrate 11, the first connection sub-portion 51 can be electrically connected to the second connection structure 17, thereby realizing the electrical connection between the anti-peeping electrode 4 and all the first conductive structures 13. When the second connection structure 17 includes the second connection sub-portion 171 and the third connection sub-portion 172 at the same time, it is beneficial to improve the voltage uniformity of the first conductive structure 13 at different positions and improve the display effect.

[0072] It should be noted that when the second connection structure 17 includes both the second connection segment 171 and the third connection segment 172, Figure 6 The example that the number of the second connection segments 171 is equal to the number of rows of the first conductive structure 13, and the number of the third connection segments 172 is equal to the number of columns of the first conductive structure 13 is used for illustration only, and this setting is not limiting. In other embodiments, the number of the second connection segments 171 can be equal to the number of rows of the first conductive structure 13, and the number of the third connection segments 172 can be less than the number of columns of the first conductive structure 13. In this way, all the first conductive structures 13 can also be electrically connected by the second connection structure 17. Similarly, in other embodiments, the number of the second connection segments 171 can be less than the number of rows of the first conductive structure 13, and the number of the third connection segments 172 can be equal to the number of columns of the first conductive structure 13.

[0073] It should also be noted that when the second connection structure 17 includes both the second connection section 171 and the third connection section 172, the orthographic projections of the first connection section 51 and the second connection structure 17 on the first substrate 11 overlap. Specifically, the orthographic projections of the first connection section 51 and at least one of the second connection section 171 and the third connection section 172 on the first substrate 11 overlap. Figure 6The orthographic projections of the first connection sub-part 51 and the second connection sub-part 171 on the first substrate 11 overlap as an example for illustration. In other embodiments, the orthographic projections of the first connection sub-part 51 and the third connection sub-part 172 on the first substrate 11 may also overlap; or the orthographic projections of the first connection sub-part 51 and at least a portion of the second connection sub-part 171 and at least a portion of the third connection sub-part 172 on the first substrate 11 may also overlap.

[0074] Combination Figure 2 and Figure 3 As shown, the counter substrate 2 is a color filter substrate, including a second substrate 21 and a plurality of color resist units 22 located on a side of the second substrate 21 close to the liquid crystal layer 3, and a third light shielding layer 23 is provided between adjacent color resist units 22; optionally, the orthographic projection of the second connection structure 17 on the second substrate 21 overlaps with the orthographic projection of the third light shielding layer 23 on the second substrate 21. In this way, the influence of the second connection structure 17 on the transmittance can be reduced.

[0075] Optionally, the second connection structure 17 and the first conductive structure 13 are formed in the same process, which can simplify the process and improve production efficiency.

[0076] Figure 7 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention. Figure 7 As shown, optionally, the array substrate 1 further includes a third connection structure 7, which is located in the non-display area NA and electrically connected to the second connection structure 17. The first connection portion 51 overlaps with the orthographic projection of the third connection structure 7 on the first substrate 11.

[0077] The second connection structure 17 may include at least one of the second connection sub-portion 171 and the third connection sub-portion 172, which is not limited in the embodiment of the present invention. In the embodiment of the present invention, the third connection structure 7 is arranged in the non-display area NA to electrically connect the third connection structure 7 with the second connection structure 17. On the one hand, when the second connection structure 17 includes only one of the second connection sub-portion 171 and the third connection sub-portion 172, all the first conductive structures 13 can be electrically connected by the third connection structure 7. On the other hand, the first connection sub-portion 51 can be arranged to overlap the orthographic projection of the third connection structure 7 on the first substrate 11, and the first connection sub-portion 51 can be electrically connected to the third connection structure 7, so that all the anti-peeping electrodes 4 can be electrically connected to all the first conductive structures 13. In this way, compared with arranging the orthographic projection of the first connection sub-portion 51 and the second connection structure 17 on the first substrate 11 to overlap, the requirements for alignment accuracy can be reduced, the number of the first connection sub-portions 51 can be reduced, and the impact on the original circuit structure and signal lines can be further reduced.

[0078] For example, Figure 7Take the second connection structure 17 including a plurality of second connection segments 171 extending along the first direction x as an example for illustration. Figure 7 As shown, in this embodiment, by providing a third connection structure 7, the third connection structure 7 is electrically connected to the second connection sub-portion 171 (i.e., the second connection structure 17), and all the first conductive structures 13 can be electrically connected by the third connection structure 7. Further, when the anti-peeping electrode layer 40 includes an anti-peeping electrode 4, the orthographic projection of the anti-peeping electrode 4 on the first substrate 11 covers the orthographic projection of the display area AA on the first substrate 11, and has a portion located in the non-display area NA, Figure 7 The solution shown in the figure can electrically connect the third connection structure 7 with the second connection sub-portion 171, and simultaneously overlap the orthographic projections of the anti-peeping electrode 4 and the third connection structure 7 on the first substrate 11 by arranging the first connection sub-portion 51, so that the first connection sub-portion 51 can be electrically connected with the anti-peeping electrode 4 and the third connection structure 7, thereby realizing the electrical connection between all the anti-peeping electrodes 4 and all the first conductive structures 13. Figure 3 It can be seen that in this embodiment ( Figure 7 ) By setting the third connection structure 7, there is no need to set a first connection section 51 corresponding to each second connection section 171, so that the number of first connection sections 51 can be reduced, further ensuring that the original circuit structure and signal line settings are not affected. Moreover, since the first connection section 51 does not need to be set corresponding to the second connection section 171, even if some of the first connection sections 51 and the third connection structure 7 are misaligned, other first connection sections 51 can be used to apply the voltage signal on the anti-peeping electrode 4 to the third connection structure 7, and then to each first conductive structure 13, thereby reducing the requirements for alignment accuracy.

[0079] It should be noted that Figure 7 The third connection structure 7 is located at one end of the second connection segment 171 as an example for illustration only, and is not intended to be limiting. In other embodiments, the third connection structure 7 may be disposed at both opposite ends of the second connection segment 171, and further, the first connection segment 51 may overlap with the orthographic projection of the third connection structure 7 on at least one side on the first substrate 11, which is not limited in the embodiment of the present invention.

[0080] Similarly, when the second connection structure 17 includes multiple third connection divisions 172 extending along the second direction y, a third connection structure 7 can be set at at least one end of the third connection division 172, and a first connection division 51 can be set corresponding to the third connection structure 7 at at least one end, so that the first connection division 51 overlaps with the anti-peep electrode 4 and the positive projection of the third connection structure 7 on the first substrate 11 at the same time, which is not repeated here.

[0081] also, Figure 8 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, referring to Figure 8 As shown, when the second connection structure 17 includes both the second connection sub-portion 171 and the third connection sub-portion 172, the third connection structure 7 can also be provided to be electrically connected to the second connection structure 17. In this case, the third connection structure 7 can be provided at least one end of the second connection sub-portion 171 and / or at least one end of the third connection sub-portion 172, and electrically connected to at least one of the second connection sub-portion 171 and the third connection sub-portion 172. This embodiment of the present invention is not limited to this. Figure 8 The third connection structure 7 is located at one end of the third connection segment 172 and is electrically connected to the third connection segment 172 as an example for illustration.

[0082] Optionally, the third connection structure 7, the first conductive structure 13 and the second connection structure 17 are formed in the same process to simplify the process and improve production efficiency.

[0083] In summary, the above embodiment takes the anti-peeping electrode layer 40 being located on the counter substrate 2 and including one anti-peeping electrode 4 as an example, and describes in detail the electrical connection method between the anti-peeping electrode 4 and the first conductive structure 13. Next, taking the anti-peeping electrode layer 40 being located on the counter substrate 2 and including multiple anti-peeping electrodes 4 as an example, the connection method between the anti-peeping electrode 4 and the first conductive structure 13 is briefly described.

[0084] Specifically, when the anti-peeping electrode layer includes multiple anti-peeping electrodes 4, in order to electrically connect all the anti-peeping electrodes 4 with all the first conductive structures 13, it is necessary to first electrically connect all the anti-peeping electrodes 4 and all the first conductive structures 13, and then electrically connect all the anti-peeping electrodes 4 and all the first conductive structures 13 through the first connecting section 51.

[0085] As described above, for the first conductive structure 13, the second connection structure 17 and the third connection structure 7 can be provided in the array substrate 1, so that all the first conductive structures 13 are electrically connected by using the second connection structure 17 and the third connection structure 7. For the connection method of all the anti-peeping electrodes 4, the connection method of the first conductive structure 13 can also be set with reference to the connection method of the first conductive structure 13.

[0086] For example, Fig. 9 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Fig.10 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Fig.11 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention. Figure 9-11As shown, optionally, the anti-peeping electrode layer includes a plurality of anti-peeping electrodes 4 arranged in an array along a first direction x and a second direction y, and also includes a fourth connection structure 8 and a fifth connection structure 9; the fifth connection structure 9 is located in the non-display area NA and is electrically connected to the fourth connection structure 8; the first connection segment 51 overlaps with the orthographic projections of the fifth connection structure 9 and the third connection structure 7 on the first substrate 11 at the same time; wherein the fourth connection structure 8 includes a fourth connection segment 81 extending along the first direction x and arranged along the second direction y, one fourth connection segment 81 is electrically connected to the plurality of anti-peeping electrodes 4 arranged along the first direction x, and the fourth connection segment 81 has a portion extending to the non-display area NA (such as Fig. 9 ); or, the fourth connection structure 8 includes a plurality of fifth connection sub-portions 82 extending along the second direction y and arranged along the first direction x, one fifth connection sub-portion 82 is electrically connected to a plurality of anti-peeping electrodes 4 arranged along the second direction y, and the fifth connection sub-portion 82 has a portion extending to the non-display area NA (such as Fig.10 ); or, the fourth connection structure 8 includes a fourth connection sub-portion 81 extending along the first direction x and arranged along the second direction y and a plurality of fifth connection sub-portions 82 extending along the second direction y and arranged along the first direction x, one fourth connection sub-portion 81 is electrically connected to the plurality of anti-peeping electrodes 4 arranged along the first direction x, the fourth connection sub-portion 81 has a portion extending to the non-display area NA, one fifth connection sub-portion 82 is electrically connected to the plurality of anti-peeping electrodes 4 arranged along the second direction y, the fifth connection sub-portion 82 has a portion extending to the non-display area NA (such as Fig.11 ).

[0087] Specifically, the embodiment of the present invention can electrically connect all the anti-peeping electrodes 4 by setting the fourth connecting structure 8 and the fifth connecting structure 9. Furthermore, by setting the first connecting section 51 to overlap with the orthographic projections of the fifth connecting structure 9 and the third connecting structure 7 on the first substrate 11 at the same time, all the anti-peeping electrodes 4 and all the first conductive structures 13 can be electrically connected.

[0088] Among them, the setting method of the fourth connecting structure 8 can be understood by referring to the setting method of the above-mentioned second connecting structure 17, wherein the setting method of the fourth connecting section 81 is similar to the setting method of the second connecting section 171, the setting method of the fifth connecting section 82 is similar to the setting method of the third connecting section 172, and the setting method of the fifth connecting structure 9 can be understood by referring to the setting method of the above-mentioned third connecting structure 7, and no repeated explanation will be made here.

[0089] It should be noted that Figure 9-11 The fourth connection structure 8 and the fifth connection structure 9 are both provided in the same layer as the anti-peeping electrode 4 and are integrally formed as an example for illustration, which can simplify the process and improve production efficiency.

[0090] In summary, the above embodiments are based on the anti-peeping electrode layer being located on the opposing substrate 2, and taking the anti-peeping electrode layer including one or more anti-peeping electrodes as an example, the electrical connection method of all the anti-peeping electrodes 4 and all the first conductive structures 13 is described in detail. Next, based on the anti-peeping electrode layer being located on the array substrate 1, the electrical connection method of all the anti-peeping electrodes 4 and all the first conductive structures 13 is described.

[0091] Fig.12 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Fig.13 is along Fig.12 The cross-sectional structure diagram of the display panel taken at CC', Fig.14 is along Fig.12 DD' is a schematic diagram of the cross-sectional structure of the display panel, combined with Figure 12-14 As shown, optionally, the display panel 100 includes a plurality of pixel areas S1 and a plurality of anti-peeping areas S2; the anti-peeping electrode layer includes a plurality of anti-peeping electrodes 4, and the array substrate 1 further includes a plurality of pixel electrodes 15 and at least one common electrode 14; the pixel electrode 15 is located in the pixel area S1, the anti-peeping electrode 4 is located in the anti-peeping area S2, and the pixel electrode 15 and the anti-peeping electrode 4 are both located on a side of the common electrode 14 close to the liquid crystal layer 3; the anti-peeping electrode 4 forms a horizontal electric field with the common electrode 14; the opposing substrate 2 includes a second substrate 21, a first light shielding layer 24 and a second light shielding layer 25; the second The shading layer 25 is located on the side of the first shading layer 24 close to the liquid crystal layer 3, and the first shading layer 24 and the second shading layer 25 are both located in the anti-peeping area S2; the first shading layer 24 includes a first opening 241 and a first shading portion 242, and the second shading layer 25 includes a second opening 251 and a second shading portion 252, the orthographic projection of the first shading portion 242 on the second substrate 21 covers the orthographic projection of the second opening 251 on the second substrate 21, and the orthographic projection of the second shading portion 252 on the second substrate 21 covers the orthographic projection of the first opening 241 on the second substrate 21.

[0092] like Fig.12 As shown, the orthographic projections of the pixel area S1 and the anti-peeping area S2 on the first substrate 11 do not overlap, wherein the pixel area S1 is used for normal light emission, and the anti-peeping area S2 is used for non-light emission in the normal display mode. In the anti-peeping mode, it does not emit light at a small viewing angle, but emits light at a large viewing angle, thereby realizing white state anti-peeping. Specifically, in the anti-peeping mode, viewers within a large viewing angle range can see the light emitted by the anti-peeping area S2, but cannot clearly see the display content of the pixel area S1, thereby realizing the white state anti-peeping effect.

[0093] Specifically, the anti-peeping principle of this embodiment is as follows: the anti-peeping electrode layer is located on the array substrate 1 , is arranged corresponding to the anti-peeping area S2 , and forms a horizontal electric field with the common electrode 14 , which is beneficial for the anti-peeping area S2 to achieve wide viewing angle display. At the same time, a first light shielding layer 24 and a second light shielding layer 25 are provided in the opposing substrate 2 corresponding to the anti-peeping area S2, and the first opening 241 of the first light shielding layer 24 is within the projection range of the second light shielding portion 252 of the second light shielding layer 25, and the second opening 251 of the second light shielding layer 25 is within the projection range of the first light shielding portion 242 of the first light shielding layer 24. In this way, the light emitted by the backlight module corresponding to the anti-peeping area S2 can be blocked by the second light shielding portion 252, and can only be emitted from the second opening 251 to the light exit surface of the display panel. Due to the existence of the first light shielding layer 24, the light emitted from the second opening 251 is blocked by the first light shielding portion 242, and only part of the light with a large viewing angle is emitted from the first opening 241 to the light exit surface of the display panel. Therefore, only viewers within the large viewing angle range can see the light emitted from the anti-peeping area S2, thereby achieving an anti-peeping effect. Viewers at other viewing angles will not feel the light emitted from the anti-peeping area S2, but can only feel the light emitted from the pixel area S1, so that the normal display of the display panel will not be affected in the anti-peeping mode.

[0094] It should be noted that the embodiment of the present invention only takes the example that the first light-shielding layer 24 and the second light-shielding layer 25 are located on the opposing substrate 2. In other embodiments, the first light-shielding layer 24 and the second light-shielding layer 25 may also be arranged on the array substrate, or respectively located on the array substrate and the opposing substrate. The embodiment of the present invention does not limit this.

[0095] like Fig.13 and Fig.14 As shown, optionally, the anti-peeping electrode 4 and the pixel electrode 15 are arranged in the same layer, so that the pixel electrode 15 and the anti-peeping electrode 4 can be formed in the same process, which simplifies the process and improves production efficiency.

[0096] Fig.15 is along Fig.12 EE' is a schematic diagram of the cross-sectional structure of the display panel, combined with Fig.12 and Fig.15 As shown, in this embodiment, since the anti-peeping electrode layer includes multiple anti-peeping electrodes 4, the fourth connection structure 8 and the fifth connection structure 9 can be set in the array substrate 1 with reference to the above embodiment, and all the anti-peeping electrodes 4 are electrically connected by using the fourth connection structure 8 and the fifth connection structure 9. At the same time, the second connection structure 17 and the third connection structure 7 are set in the array substrate 1, and all the first conductive structures 13 are electrically connected by using the second connection structure 17 and the third connection structure 7, and then the third connection structure 7 and the fifth connection structure 9 are electrically connected through the first connection division 51 of the non-display area NA, so that all the anti-peeping electrodes 4 and all the first conductive structures 13 are electrically connected.

[0097] It needs to be explained that Fig.12 The example in which the second connection structure 17 includes a plurality of second connection sections 171 extending along the first direction x and arranged along the second direction y, and the fourth connection structure 8 includes a plurality of fourth connection sections 81 extending along the first direction x and arranged along the second direction y is only taken for illustration, but is not limiting. Other feasible implementation modes can be set with reference to the above description and will not be described one by one here.

[0098] In summary, the above embodiments have described in detail the manner in which all anti-peeping electrodes are electrically connected to all first conductive structures based on different configurations of the anti-peeping electrode layer. The above embodiments can be combined with each other without contradiction, and the embodiments of the present invention are not limited thereto.

[0099] Based on any of the above embodiments, Fig.16 is a schematic diagram of a top view of another display panel provided by an embodiment of the present invention, Fig.17 is a driving timing diagram of a display panel in an anti-peeping mode provided by an embodiment of the present invention, such as Fig.16 and Fig.17 As shown, optionally, the array substrate 1 also includes a plurality of data lines 1004, and the data lines 1004 are electrically connected to the thin film transistor 12; during the driving process of two adjacent frames (frame) of display images, the polarities of the data signals DATA transmitted on the same data line 1004 are opposite, and during the driving process of the same frame of display images, the polarities of the data signals transmitted on two adjacent data lines 1004 are opposite.

[0100] like Fig.16 As shown, a plurality of scanning lines 1003 and a plurality of data lines 1004 are arranged on the array substrate 1, and the extension direction of the scanning lines 1003 intersects with the extension direction of the data lines 1004. Usually, a scanning line 1003 is electrically connected to the gate of the thin film transistor 12 in the same row, and a data line 1004 is electrically connected to the source of the thin film transistor 12 in the same column. In this way, a scanning enable signal can be output to each scanning line 1003 in sequence through the gate driving circuit, and the thin film transistor 12 is selected row by row by using the scanning line 1003, so that the driver chip IC transmits the pixel voltage (i.e., the data signal DATA) to the pixel electrode 15 corresponding to the thin film transistor 12 in the on state through the data line 1004, so that the liquid crystal is deflected under the action of the electric field of the pixel electrode 15 and the common electrode 14, and the light transmittance is controlled.

[0101] like Fig.16 As shown, in the same frame display picture, the voltage polarities on the three columns of pixel electrodes 15 are positive, negative, and positive, respectively, that is, in the driving process of the same frame display picture, the polarities of the data signals transmitted on the two adjacent data lines are opposite. In addition, Fig.17In the display driving process, the DATA signal is the transmission signal waveform of a data line, such as Fig.17 As shown, during the driving process of three adjacent display frames, the polarities of the data signals transmitted on the data line are positive, negative, and positive, respectively, so that during the driving process of two adjacent display frames, the polarities of the data signals transmitted on the same data line are opposite, so that column flipping can be achieved, thereby improving the liquid crystal polarization phenomenon.

[0102] Continue to see Fig.17 , Fig.17 SUB in the figure represents a voltage signal applied to the anti-peeping electrode 4, which can be provided by a driving chip IC or other components, and the embodiment of the present invention does not limit this. In the anti-peeping mode, by applying a voltage signal (such as a positive voltage) to the anti-peeping electrode 4, the electric field between the anti-peeping electrode 4 and the common electrode 14 can be used to achieve an anti-peeping effect. At the same time, since the anti-peeping electrode 4 is electrically connected to the first conductive structure 13 disposed on the side of the active layer 121 close to the first substrate 11, the SUB signal can be synchronously applied to the first conductive structure 13, so that the first conductive structure 13 serves as the bottom gate of the thin film transistor 12, forming a dual-gate transistor, reducing leakage current, and increasing conduction current, thereby reducing flicker, improving display uniformity, improving charging capacity, and improving the display effect of high-frequency displays.

[0103] Fig.18 is a schematic diagram of an equivalent circuit in which the anti-peeping electrode 4 is electrically connected to the first conductive structure 13 in the display panel provided by an embodiment of the present invention, as shown Fig.18 As shown, optionally, the anti-peeping electrode 4 and the first conductive structure 13 do not form a loop.

[0104] Specifically, Fig.18 In the figure, R-4 represents the resistance of all anti-peeping electrodes 4, and R-13 represents the resistance of all first conductive structures 13. Fig.18 As shown, the embodiment of the present invention only provides the voltage signal (SUB) to the anti-peeping electrode 4 and the first conductive structure 13 at the same time, and the anti-peeping electrode 4 and the first conductive structure 13 do not form a loop. With this arrangement, when the voltage signal is transmitted to the anti-peeping electrode 4 and the first conductive structure 13, no current will be generated (because there will be current only when there is a loop), so the power consumption is small, which can avoid excessive increase in the power consumption of the display.

[0105] For example, refer to Fig.17 Taking the voltage signal SUB as the positive voltage output by the driver chip as an example, when the voltage signal is transmitted to the anti-peeping electrode 4 and the first conductive structure 13, energy is consumed only at the rising edge of the positive voltage signal output by the driver chip, so the power consumption is relatively small, which can avoid excessive increase in the power consumption of the display.

[0106] Specifically, to ensure that the anti-peeping electrode 4 and the first conductive structure 13 do not form a loop, optionally, all the first connecting portions 51 are located in the non-display area NA on the same side of the display area AA.

[0107] For example, refer to Figure 3 When the second connection structure 17 includes a plurality of second connection divisions 171, in order to electrically connect the anti-peeping electrode 4 and the first conductive structure 13 at the same time, a first connection division 51 may be provided corresponding to at least one of the two opposite ends of the second connection division 171. However, if the first connection division 51 is provided corresponding to both opposite ends of the second connection division 171, a loop will be formed between the anti-peeping electrode 4 and the first conductive structure 13, generating current, thereby causing greater power consumption. Figure 3 In the illustrated solution, all first connection sections 51 are located in the non-display area NA on the left side of the display area AA, which ensures that the anti-peeping electrode 4 and the common electrode 14 do not form a loop, thereby avoiding high power consumption.

[0108] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.19 1 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention. The display device 1000 includes a backlight module 200 and a display panel 100 provided by any of the above embodiments. The backlight module 200 is located on a side of the array substrate 1 away from the opposing substrate 2. Since the display device 1000 includes the display panel 100 provided by any of the above embodiments, it has the same beneficial effects as the above display panels. The same points can be referred to the description of the above display panel embodiments, which will not be repeated here. The display device 1000 provided by the embodiment of the present invention can be Fig.19 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present invention do not specifically limit this.

[0109] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel comprising an array substrate, an opposing substrate, and a liquid crystal layer located between the array substrate and the opposing substrate; It is characterized in that The array substrate comprises a first substrate and a plurality of thin film transistors; the thin film transistors are located on a side of the first substrate close to the liquid crystal layer and comprise an active layer and a gate, and the gate is located on a side of the active layer away from the first substrate; The array substrate further includes a plurality of first conductive structures; The first conductive structure is located on a side of the active layer close to the first substrate and is insulated from the active layer; an orthographic projection of the first conductive structure on the first substrate overlaps with an orthographic projection of the active layer on the first substrate; The display panel also includes an anti-peeping electrode layer; the anti-peeping electrode layer is located on a side of the film layer where the first conductive structure is located away from the first substrate, and includes at least one anti-peeping electrode; all the anti-peeping electrodes are electrically connected to all the first conductive structures; in the anti-peeping mode, the first conductive structure serves as the bottom gate of the thin film transistor to form a dual-gate transistor.

2. The display panel according to claim 1, It is characterized in that The array substrate comprises a metal light shielding layer, which is located on a side of the active layer close to the first substrate and is insulated from the active layer; The metal light-shielding layer includes a plurality of metal light-shielding blocks, and the orthographic projections of the metal light-shielding blocks on the first substrate overlap with the orthographic projections of the active layer on the first substrate; the metal light-shielding blocks are reused as the first conductive structure.

3. The display panel according to claim 1, It is characterized in that The display panel comprises a display area and a non-display area located at least on one side of the display area; The display panel further includes a first connection structure; the first connection structure is located in the non-display area and includes a plurality of first connection sub-parts, and the first connection sub-parts extend in a direction perpendicular to a plane where the first substrate is located; The anti-peeping electrode and the first conductive structure are electrically connected via the first connecting structure.

4. The display panel according to claim 3, It is characterized in that A plurality of the first conductive structures are arranged in an array along a first direction and a second direction; The array substrate further includes a second connection structure; the second connection structure includes a plurality of second connection sub-sections extending along the first direction and arranged along the second direction, one of the second connection sub-sections being electrically connected to a plurality of the first conductive structures arranged along the first direction; the second connection sub-section has a portion extending to the non-display area; and / or, The second connection structure comprises a plurality of third connection sub-portions extending along the second direction and arranged along the first direction, and one of the third connection sub-portions is electrically connected to a plurality of the first conductive structures arranged along the second direction; The third connection portion has a portion extending to the non-display area.

5. The display panel according to claim 4, It is characterized in that The anti-peeping electrode layer comprises an anti-peeping electrode, the orthographic projection of the anti-peeping electrode on the first substrate covers the orthographic projection of the display area on the first substrate, and has a portion located in the non-display area; The first connection section overlaps with the orthographic projections of the anti-peeping electrode and the second connection structure on the first substrate at the same time.

6. The display panel according to claim 4, It is characterized in that The array substrate further includes a third connection structure, wherein the third connection structure is located in the non-display area and is electrically connected to the second connection structure.

7. The display panel according to claim 6, It is characterized in that The anti-peeping electrode layer comprises an anti-peeping electrode, the orthographic projection of the anti-peeping electrode on the first substrate covers the orthographic projection of the display area on the first substrate, and has a portion located in the non-display area; The first connection section overlaps with the orthographic projections of the anti-peeping electrode and the third connection structure on the first substrate at the same time.

8. The display panel according to claim 6, It is characterized in that The anti-peeping electrode layer includes a plurality of anti-peeping electrodes arranged in an array along the first direction and the second direction, and also includes a fourth connecting structure and a fifth connecting structure; The fourth connection structure includes a fourth connection segment extending along the first direction and arranged along the second direction, one of the fourth connection segments being electrically connected to the plurality of anti-peeping electrodes arranged along the first direction; the fourth connection segment having a portion extending to the non-display area; and / or the fourth connection structure includes a plurality of fifth connection segments extending along the second direction and arranged along the first direction, one of the fifth connection segments being electrically connected to the plurality of anti-peeping electrodes arranged along the second direction; the fifth connection segment having a portion extending to the non-display area; The fifth connection structure is located in the non-display area and is electrically connected to the fourth connection structure; The first connection branch overlaps with orthographic projections of the fifth connection structure and the third connection structure on the first substrate at the same time.

9. The display panel according to any one of claims 5, 7 and 8, It is characterized in that The counter substrate includes a second substrate, the anti-peeping electrode is located on a side of the second substrate close to the liquid crystal layer, and the first connecting portion passes through the layer where the liquid crystal layer is located; The array substrate further includes at least one common electrode, and the anti-peeping electrode and the common electrode form a vertical electric field.

10. The display panel according to claim 8, It is characterized in that The display panel includes a plurality of pixel areas and a plurality of privacy protection areas; The array substrate further comprises a plurality of pixel electrodes and at least one common electrode; the pixel electrode is located in the pixel area, the anti-peeping electrode is located in the anti-peeping area, the pixel electrode and the anti-peeping electrode are both located on a side of the common electrode away from the first substrate; the anti-peeping electrode and the common electrode form a horizontal electric field; The opposing substrate includes a second substrate, a first light-shielding layer and a second light-shielding layer; the second light-shielding layer is located on a side of the first light-shielding layer close to the liquid crystal layer, and the first light-shielding layer and the second light-shielding layer are both located in the anti-peeping area; the first light-shielding layer includes a first opening and a first light-shielding portion, the second light-shielding layer includes a second opening and a second light-shielding portion, the orthographic projection of the first light-shielding portion on the second substrate covers the orthographic projection of the second opening on the second substrate, and the orthographic projection of the second light-shielding portion on the second substrate covers the orthographic projection of the first opening on the second substrate.

11. The display panel according to claim 1, It is characterized in that The array substrate further comprises a plurality of data lines, wherein the data lines are electrically connected to the thin film transistors; In the driving process of two adjacent display frames, the polarities of data signals transmitted on the same data line are opposite, and in the driving process of the same display frame, the polarities of data signals transmitted on two adjacent data lines are opposite.

12. The display panel according to claim 4, It is characterized in that The counter substrate comprises a second substrate and a plurality of color-resistance units located on a side of the second substrate close to the liquid crystal layer, and a third light-shielding layer is arranged between adjacent color-resistance units; An orthographic projection of the second connection structure on the second substrate overlaps with an orthographic projection of the third light shielding layer on the second substrate.

13. The display panel according to claim 1, It is characterized in that The anti-peeping electrode and the first conductive structure do not form a loop.

14. A display device, It is characterized in that Comprising a backlight module and a display panel according to any one of claims 1 to 13; The backlight module is located at a side of the array substrate away from the opposite substrate.

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