Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a first substrate, a second substrate, a dimming structure, a first electrode, a second electrode, a first sub-pixel and a second sub-pixel. Wherein the dimming structure is arranged between the first substrate and the second substrate, a plurality of first grooves are formed in the side, close to the first substrate, of the dimming structure, and a plurality of second grooves are formed in the side, close to the second substrate, of the dimming structure; the first grooves and the second grooves are sequentially and alternately arranged in the first direction and the second direction, and the first direction and the second direction are parallel to the dimming structure and intersect with each other. The first electrode is arranged on one side, close to the first substrate, of the dimming structure; the second electrode is arranged on the side, close to the second substrate, of the dimming structure and used for forming a preset electric field with the second electrode to control the light transmittance of the dimming structure. The first sub-pixels are arranged in the first grooves, and the second sub-pixels are arranged in the second grooves. According to the display panel, the circuit complexity of double-sided display can be simplified, the thickness of the panel is reduced, and the peep-proof requirement is met.

Description

Technical Field

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

[0002] With the continuous development of display technology, Organic Light-Emitting Diode (OLED) display technology has gradually become the mainstream display technology due to its advantages such as fast response speed, wide operating temperature range, high contrast, large viewing angle, and flexible display and translucent display.

[0003] At present, OLED display panels that can achieve double-sided display function usually require electrochromic materials and control electrodes on both sides, which leads to high circuit complexity, increased panel thickness and inability to meet narrow viewing angle and anti-peep requirements. Summary of the invention

[0004] The present application provides a display panel and a display device, aiming to solve the problems in the prior art of display panels with double-sided display functions, such as complex circuits, increased panel thickness, and inability to meet narrow viewing angle and anti-peeping requirements.

[0005] In order to solve the above technical problems, the first technical solution provided by the present application is to provide a display panel. The display panel includes: a first substrate; a second substrate, arranged opposite to the second substrate; A dimming structure is arranged between a first substrate and a second substrate; a plurality of first grooves are arranged on a side of the dimming structure close to the first substrate, and a plurality of second grooves are arranged on a side of the dimming structure close to the second substrate; the first grooves and the second grooves are arranged alternately in a first direction and a second direction, and the first direction and the second direction are parallel to and intersect the dimming structure; A first electrode is disposed on a side of the dimming structure close to the first substrate; A second electrode is disposed on a side of the dimming structure close to the second substrate, and is used to form a preset electric field with the second electrode to control the light transmittance of the dimming structure; A first sub-pixel is disposed in the first groove; The second sub-pixel is disposed in the second groove.

[0006] In some embodiments, when the first electrode and the second electrode form a first preset electric field, the dimming structure is opaque and the display panel is in a narrow viewing angle display mode; when the first sub-pixel and the second sub-pixel are turned on, the display panel is in a narrow viewing angle double-sided display mode; when the first sub-pixel or the second sub-pixel is turned on, the display panel is in a narrow viewing angle single-sided display mode; When the first electrode and the second electrode form a second preset electric field, the dimming structure is translucent and the display panel is in a wide-viewing angle display mode; when the first sub-pixel and the second sub-pixel are turned on, the display panel is in a wide-viewing angle high-resolution display mode; when the first sub-pixel or the second sub-pixel is turned on, the display panel is in a wide-viewing angle low-resolution display mode.

[0007] In some embodiments, the first electrode includes a plurality of first sub-electrodes that are distributed in an array and insulated from each other; a first insulating layer is further provided between the first electrode and the first substrate, and a plurality of first via holes are further provided in the first insulating layer; a first touch connection line is provided between the first insulating layer and the first substrate, and the first touch connection line is electrically connected to the corresponding first sub-electrode through the first via hole, so as to transmit a first touch signal; The second electrode includes a plurality of second sub-electrodes distributed in an array and insulated from each other; a second insulating layer is provided between the second electrode and the second substrate, and a plurality of second via holes are provided in the second insulating layer; a second touch connection line is provided between the second insulating layer and the second substrate, and the second touch connection line is electrically connected to the corresponding second sub-electrode through the second via hole, so as to transmit a second touch signal; The first gap between two adjacent first sub-electrodes is located at the sidewall of the first groove, the second gap between two adjacent second sub-electrodes is located at the sidewall of the second groove, and the first gap and the second gap located on opposite sides of the same sidewall are staggered.

[0008] In some embodiments, each frame includes a display phase and a touch phase; In the display stage, the first sub-electrode serves as the cathode of the first sub-pixel for transmitting the first cathode signal; the second sub-electrode also serves as the cathode of the second sub-pixel for transmitting the second cathode signal; and the first cathode signal and the second cathode signal maintain a first difference or a second difference to maintain the light-transmitting state or the light-impeding state of the dimming structure; During the touch stage, the first sub-electrode acts as a first touch electrode for transmitting a first touch signal; the second sub-electrode acts as a second touch electrode for transmitting a second touch signal; and a first difference or a second difference is maintained between the first touch signal and the second touch signal to maintain the light-transmitting state or the light-opaque state of the dimming structure.

[0009] In some embodiments, a first insulating layer, a first scanning touch electrode and a first data touch electrode, a second insulating layer, a first scanning line, a third insulating layer, and a first data line are sequentially stacked on a side of the first electrode close to the first substrate; wherein the first scanning touch electrodes and the first data touch electrodes are distributed in an array and insulated from each other, the first scanning touch electrodes in the same row are connected to the same first scanning line, and the first data touch electrodes in the same column are connected to the same first data line; A fourth insulating layer, a second scanning touch electrode, a second data touch electrode, a fifth insulating layer, a second scanning line, a sixth insulating layer, and a second data line are stacked in sequence on one side of the second electrode close to the second substrate; wherein the second scanning touch electrodes and the second data touch electrodes are distributed in an array and insulated from each other, the second scanning touch electrodes in the same row are connected to the same second scanning line, and the second data touch electrodes in the same column are connected to the same second data line.

[0010] In some embodiments, the dimming structure includes a first dimming layer, a second dimming layer and a third dimming layer; the side wall on the side where the adjacent first groove and the second groove are close to each other is the first dimming layer, the bottom wall of the first groove close to the second substrate is the second dimming layer, and the bottom wall of the second groove close to the first substrate is the third dimming layer; the dimming structure has an opaque state and a transparent state; under the action of the same preset electric field, the second dimming layer and the third dimming layer are opposite to the transparent state of the first dimming layer.

[0011] In some embodiments, when the first electrode and the second electrode form a second preset electric field, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in an opaque state, and the display panel is in a first wide-viewing angle display mode; When the first electrode and the second electrode form a first preset electric field, the first dimming layer is in an opaque state, the second dimming layer and the third dimming layer are in a transparent state, and the display panel is in a first narrow viewing angle display mode.

[0012] In some embodiments, the first electrode includes a third sub-electrode and a fourth sub-electrode insulated from each other, the third sub-electrode is disposed on a side surface of the third dimming layer close to the first substrate; the fourth sub-electrode is disposed on a groove wall surface of the first groove and a side surface of the adjacent first dimming layer close to the first substrate; The second electrode includes a fifth sub-electrode and a sixth sub-electrode insulated from each other. The fifth sub-electrode is arranged on a side surface of the second dimming layer close to the second substrate; the sixth sub-electrode is arranged on the groove wall surface of the second groove and a side surface of the adjacent first dimming layer close to the second substrate.

[0013] In some embodiments, the ends of the third sub-electrodes on the same side are electrically connected via the first connection portion, the ends of the fourth sub-electrodes on the same side are electrically connected via the second connection portion, the ends of the fifth sub-electrodes on the same side are electrically connected via the third connection portion, and the ends of the sixth sub-electrodes on the same side are electrically connected via the fourth connection portion; wherein, When the third sub-electrode and the sixth sub-electrode form a first preset electric field, the fourth sub-electrode and the fifth sub-electrode form a first preset electric field, and the fourth sub-electrode and the sixth sub-electrode form a second preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the display panel is in a second wide-viewing angle display mode; When the third sub-electrode and the sixth sub-electrode form a second preset electric field, the fourth sub-electrode and the fifth sub-electrode form a second preset electric field, and the fourth sub-electrode and the sixth sub-electrode form a first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are in an opaque state, and the display panel is in a second narrow viewing angle display mode.

[0014] In some embodiments, the fourth sub-electrode includes a first side electrode, a bottom wall electrode and a second side electrode, the first side electrode is arranged on one side wall surface of the first groove, the second side electrode is arranged on the other side wall surface of the first groove, and the bottom wall electrode is arranged on the bottom wall surface of the first groove.

[0015] In some embodiments, ends of the third sub-electrodes located on the same side are electrically connected through the first connection portion; ends of the first side electrodes located on the same side are electrically connected through the first sub-connection portion, ends of the second side electrodes located on the same side are electrically connected through the second sub-connection portion, and ends of the bottom wall electrodes located on the same side are electrically connected through the third sub-connection portion; ends of the fifth sub-electrodes located on the same side are electrically connected through the third connection portion, and ends of the sixth sub-electrodes located on the same side are electrically connected through the fourth connection portion; The first side electrode and the sixth sub-electrode form a second preset electric field, the bottom wall electrode and the fifth sub-electrode form a second preset electric field, the third sub-electrode and the sixth sub-electrode form a second preset electric field, and when the second side electrode and the sixth sub-electrode form the first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer provided with the second side electrode are in an opaque state, the first dimming layer provided with the first side electrode is in a transparent state, and the display panel is in a double-sided first side viewing angle display mode; When the first side electrode and the sixth sub-electrode form a first preset electric field, the bottom wall electrode and the fifth sub-electrode form a second preset electric field, the third sub-electrode and the sixth sub-electrode form a second preset electric field, and the second side electrode and the sixth sub-electrode form the second preset electric field, the first dimming layer, the second dimming layer, and the third dimming layer provided with the first side electrode are in an opaque state, the first dimming layer provided with the second side electrode is in a transparent state, and the display panel is in a double-sided second side viewing angle display mode; The third sub-electrode and the sixth sub-electrode form a first preset electric field, the first side electrode and the sixth sub-electrode form a second preset electric field, the bottom wall electrode and the fifth sub-electrode form a first preset electric field, the second side electrode and the sixth sub-electrode form a first preset electric field, the second dimming layer, the first dimming layer with the first side electrode and the third dimming layer are in a light-transmitting state, the first dimming layer with the second side electrode is in an opaque state, and the display panel is in a double-sided and double-side viewing angle display mode.

[0016] In some embodiments, ends of a plurality of adjacent third sub-electrodes located on the same side are electrically connected through a first connecting portion to form a first functional electrode, and the plurality of first functional electrodes are arranged in an array, and each first functional electrode is electrically connected to a corresponding third touch connection line; Ends of a plurality of adjacent first side electrodes located on the same side are electrically connected through a first sub-connection portion to form a first side viewing electrode, a plurality of first side viewing electrodes are arranged in an array, and each first side viewing electrode is electrically connected to a corresponding first side connecting line; ends of a plurality of adjacent second side electrodes located on the same side are electrically connected through a second sub-connection portion to form a second side viewing electrode, a plurality of second side viewing electrodes are arranged in an array, and each second side viewing electrode is electrically connected to a corresponding second side connecting line; ends of a plurality of adjacent bottom wall electrodes located on the same side are electrically connected through a third sub-connection portion to form a bottom electrode, a plurality of bottom electrodes are arranged in an array, and each bottom electrode is electrically connected to a corresponding bottom electrode connecting line; Ends of a plurality of adjacent fifth sub-electrodes located on the same side are electrically connected through a third connection portion to form a second functional electrode, the plurality of second functional electrodes are arranged in an array, and each second functional electrode is electrically connected to a corresponding fourth touch connection line; ends of a plurality of adjacent sixth sub-electrodes located on the same side are electrically connected through a fourth connection portion to form a third functional electrode, the plurality of third functional electrodes are arranged in an array, and each third functional electrode is electrically connected to a corresponding fifth touch connection line; Each frame includes a display phase and a touch phase; Among them, in the touch stage, the first functional electrode serves as the third touch electrode for transmitting the third touch signal; the second functional electrode serves as the fourth touch electrode for transmitting the fourth touch signal; and the first difference or the second difference is maintained between the third touch signal and the voltage signal of the sixth sub-electrode to maintain the translucent state or the opaque state of the second dimming layer; the first difference or the second difference is maintained between the fourth touch signal and the voltage signal of the bottom wall electrode to maintain the translucent state or the opaque state of the third dimming layer.

[0017] In some embodiments, the display panel has a first display area and a second display area; In the first display area, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the first sub-pixel and the second sub-pixel jointly display a first picture; In the second display area, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in an opaque state, the first sub-pixel displays the second picture toward the first substrate, and the second sub-pixel displays the third picture toward the second substrate. The second picture and the third picture have the same content and are displayed in opposite directions.

[0018] In some embodiments, the display panel has a regular display area and a logo display area, and the shape of the logo display area is the same as the shape of the logo pattern; In the conventional display area, the first dimming layer is in a light-transmitting state; in the logo display area, the first dimming layer is in a light-opaque state; or, In the conventional display area, the first dimming layer is in an opaque state; in the logo display area, the first dimming layer is in a translucent state.

[0019] In order to solve the above technical problems, the second technical solution provided by the present application is to provide a display device. The display device includes: The display panel is the display panel provided by the above technical solution; The control circuit board is electrically connected to the display panel and is used to control the display panel to display images in a corresponding display mode.

[0020] Beneficial effects of the present application: Different from the prior art, the present application provides a display panel and a display device. The display panel includes a first substrate and a second substrate arranged opposite to each other, a dimming structure arranged between the first substrate and the second substrate, and a first sub-pixel and a second sub-pixel arranged in a dimming structure groove. Among them, by opening a plurality of first grooves on the side of the dimming structure close to the first substrate, opening a plurality of second grooves on the side of the dimming structure close to the second substrate, and making the first grooves and the second grooves alternately arranged in sequence along the first direction and the second direction, the first direction and the second direction are parallel to the dimming structure and intersect, so that the first sub-pixel in the first groove and the second sub-pixel in the second groove have no overlap on the surface parallel to the dimming structure and are arranged alternately, so that the first sub-pixel and the second sub-pixel can display the picture independently or together. By setting a first electrode on the side of the dimming structure close to the first substrate and a second electrode on the side close to the second substrate, the light transmittance of the dimming structure can be controlled by controlling the electric field between the first electrode and the second electrode, so that the dimming structure can be controlled to be a light-transmitting state and a light-impermeable state. When the dimming structure is in a light-transmitting state, the light of the first sub-pixel and the second sub-pixel can pass through the dimming structure to emit light toward the first substrate and the second substrate, and the dimming structure has no effect on the viewing angle of the first sub-pixel and the second sub-pixel, so that double-sided wide viewing angle display can be achieved, and the switching between high resolution and low resolution can also be achieved by controlling the light emission of the first sub-pixel and / or the second sub-pixel. When the dimming structure is in an opaque state, it has a light-shielding effect, so that the first sub-pixel can only emit light toward the first substrate, and the second sub-pixel can only emit light toward the second substrate, and the groove structure on the dimming structure can converge the viewing angles of the first sub-pixel and the second sub-pixel, thereby achieving a narrow viewing angle double-sided display to meet the anti-peeping requirements; further, the first sub-pixel or the second sub-pixel can be turned off to achieve a single-sided display, so that the privacy of the displayed content is better and the power consumption can be reduced. At the same time, by setting the dimming structure, there is no need to set a dimming layer on both sides of the sub-pixel, which can reduce the thickness of the panel; and since only one dimming structure is set, only the first electrode and the second electrode need to be set on both sides of the dimming structure, which can simplify the control circuit and reduce the complexity of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 is a schematic structural diagram of a display panel provided in the first embodiment of the present application; Figure 2 is a schematic diagram of a planar structure of a dimming structure provided in an embodiment of the present application; Figure 3 is a schematic flow chart of a method for preparing a display panel provided in one embodiment of the present application; Figure 4a It corresponds to Figure 3 A process flow chart of steps S11 to S15; Figure 4b It corresponds to Figure 3 A process flow chart of steps S21 to S24; Figure 5 yes Figure 1 A schematic diagram of light emission of a display panel in a narrow viewing angle double-sided display mode provided by an embodiment; Figure 6 yes Figure 1 A schematic diagram of light emission of a display panel in a narrow viewing angle single-sided display mode provided by an embodiment; Figure 7 yes Figure 1 A schematic diagram of light emission of a display panel provided in an embodiment in a wide viewing angle and high resolution display mode; Figure 8 yes Figure 1 A schematic diagram of light emission of a display panel provided in an embodiment in a wide viewing angle and low resolution display mode; Fig. 9 for Figure 1 A schematic diagram of light emission of a display panel in a high- and low-resolution mixed display mode provided by an embodiment; Fig.10 is a schematic structural diagram of a display panel provided in a second embodiment of the present application; Fig.11 yes Fig.10 A schematic diagram of a planar structure provided by an embodiment of the first electrode; Fig.12 is a control timing diagram of a first electrode and a second electrode provided in an embodiment of the present application; Fig.13 is a control timing diagram of a first electrode and a second electrode provided by another embodiment of the present application; Fig.14 yes Fig.10 A light emitting state diagram of a display mode of the display panel; Fig.15 is a schematic diagram of the planar position relationship of electrodes in a display panel provided in the third embodiment of the present application; Fig.16 is a schematic structural diagram of a display panel provided in the third embodiment of the present application; Fig.17 is a schematic structural diagram of another display panel provided in the fourth embodiment of the present application; Fig.18 is a schematic structural diagram of a display panel provided in a fifth embodiment of the present application; Fig.19 is a schematic flow chart of a method for preparing a display panel provided in another embodiment of the present application; Fig.20a It corresponds to Fig.19 A process flow chart of steps S31 to S36; Fig.20b It corresponds to Fig.19 A process flow chart of steps S41 to S45; Fig.21 yes Fig.18 A schematic diagram of light emission of a display panel provided in an embodiment in a wide-viewing-angle double-sided display mode; Fig. 22 yes Fig.18 A schematic diagram of light emission of a display panel provided in an embodiment in a wide viewing angle single-sided display mode; Fig.23 yes Fig.18 A schematic diagram of a light-emitting display panel provided in an embodiment in a first narrow viewing angle double-sided display mode; Fig.24 yes Fig.18 Another schematic diagram of light emission of the display panel provided in the embodiment in the first narrow viewing angle double-sided display mode; Fig.25 yes Fig.18 Another schematic diagram of light emission of the display panel provided in the embodiment in the first narrow viewing angle double-sided display mode; Fig.26 is a schematic structural diagram of a display panel provided in a sixth embodiment of the present application; Fig. 27 yes Fig.26 A schematic diagram of a planar structure of the first electrode; Fig.28 yes Fig.26 A schematic diagram of a light-emitting display panel in a second wide viewing angle display mode; Fig.29 yes Fig.26 A schematic diagram of a light-emitting display panel in a second narrow viewing angle display mode; Fig.30 is a schematic diagram of the structure of a display panel provided in a seventh embodiment of the present embodiment; Fig.31 yes Fig.30 A schematic diagram of a planar structure of the first electrode; Fig.32 yes Fig.30 A schematic diagram of the middle display panel emitting light in a double-sided first side viewing angle display mode; Fig.33 yes Fig.30 A schematic diagram of the middle display panel emitting light in a double-sided second side viewing angle display mode; Fig.34 yes Fig.30 A schematic diagram of the light emission of the middle display panel in a double-sided and double-side viewing angle display mode; Fig.35a yes Fig.30 Another schematic diagram of the planar structure of the first electrode; Fig.35b yes Fig.30 A schematic diagram of a planar structure of the second electrode; Fig.36 yes Fig.30 A schematic diagram of a light-emitting display panel in a hybrid display mode; Fig.37 yes Fig.30 A display schematic diagram of the middle display panel in a logo display mode; Fig.38 yes Fig.30 A display schematic diagram of the middle display panel in another logo display mode; Fig.39 It is a schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0023] Reference numerals: 100-display panel; 101-first display area; 102-second display area; 103-picture area; 104-text area; 105-high resolution area; 106-low resolution area; 107-conventional display area; 108-logo display area; 10-first substrate; 11-carrier; 20-second substrate; 30-dimming structure; 30a-electrochromic material layer; 31-first groove; 32-second groove; 33-first dimming layer; 33 / a-first dimming layer; 33 / b-first dimming layer layer; 33a-first electrochromic material layer; 34-second dimming layer; 35-third dimming layer; 40-first electrode; 401-first gap; 41-first sub-electrode; 42-third sub-electrode; 43-fourth sub-electrode; 431-first side electrode; 432-second side electrode; 433-bottom wall electrode; 441-first connecting part; 442-second connecting part; 451-first sub-connecting part; 452-third sub-connecting part; 453-second sub-connecting part; 461-first functional electrode; 462-first Side viewing electrode; 463-second side viewing electrode; 464-bottom electrode; 50-second electrode; 501-second gap; 51-second sub-electrode; 52-fifth sub-electrode; 53-sixth sub-electrode; 541-second functional electrode; 542-third functional electrode; 61-first sub-pixel; 611-anode; 62-second sub-pixel; 71-first insulating layer; 711-first via hole; 72-second insulating layer; 721-second via hole; 73-third insulating layer; 74-fourth insulating layer; 75-fifth Insulating layer; 76-sixth insulating layer; 81-first touch connection line; 811-fourth touch connection line; 812-fifth touch connection line; 82-second touch connection line; 83-first scan line; 84-first data line; 85-third touch connection line; 86-second data line; 871-first side connection line; 872-bottom electrode connection line; 873-second side connection line; 91-first scan touch electrode; 92-first data touch electrode; 94-second data touch electrode; 200-control circuit board; X-first direction; Y-second direction; T1-display stage; T2-touch stage; P1-first pixel opening; P2-second pixel opening. DETAILED DESCRIPTION

[0024] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0025] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0030] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of a display panel provided in the first embodiment of the present application, Figure 2 1 is a schematic diagram of a planar structure of a dimming structure provided in an embodiment of the present application. In this embodiment, a display panel 100 is provided, and the display panel 100 includes: A first substrate 10; a second substrate 20, disposed opposite to the second substrate 20; A dimming structure 30 is disposed between the first substrate 10 and the second substrate 20; a plurality of first grooves 31 are disposed on a side of the dimming structure 30 close to the first substrate 10, and a plurality of second grooves 32 are disposed on a side close to the second substrate 20; the first grooves 31 and the second grooves 32 are alternately disposed along a first direction X and a second direction Y, and the first direction X and the second direction Y are parallel to and intersect the dimming structure 30; The first electrode 40 is disposed on a side of the dimming structure 30 close to the first substrate 10; The second electrode 50 is disposed on a side of the dimming structure 30 close to the second substrate 20 and is used to form a preset electric field with the second electrode 50 to control the light transmittance of the dimming structure 30; The first sub-pixel 61 is disposed in the first groove 31; The second sub-pixel 62 is disposed in the second groove 32 .

[0031] The first substrate 10 and the second substrate 20 may be transparent carriers 11, such as glass substrates, or flexible transparent substrates, respectively, and may be specifically configured according to actual needs.

[0032] The material of the dimming structure 30 may be an electrochromic material. A first groove 31 and a second groove 32 are respectively provided on the front and back sides of the dimming structure 30 to form a continuous front and back semi-enclosed structure, and a first sub-pixel 61 is provided in the first groove 31, and a second sub-pixel 62 is provided in the second groove 32, so as to achieve a one-to-one correspondence with the sub-pixels on the front and back sides.

[0033] The first sub-pixel 61 and the second sub-pixel 62 each include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. The first sub-pixel 61 and the second sub-pixel 62 may specifically include a pixel driving circuit and a light-emitting device. The light-emitting device may specifically be a self-luminous device, such as a light-emitting diode (LED), a sub-millimeter light-emitting diode (Mini Light-Emitting Diode, Mini-LED), a micro light-emitting diode (Micro Light-Emitting Diode, Micro-LED), an organic light-emitting diode (Organic Light-Emitting Diode, OLED) and other current-driven self-luminous devices.

[0034] In the embodiment of the present application, a plurality of first grooves 31 are provided on the side of the dimming structure 30 close to the first substrate 10, and a plurality of second grooves 32 are provided on the side of the dimming structure 30 close to the second substrate 20, and the first grooves 31 and the second grooves 32 are alternately arranged in sequence along the first direction X and the second direction Y, and the first direction X and the second direction Y are parallel to the dimming structure 30 and intersect, so that the first sub-pixel 61 in the first groove 31 and the second sub-pixel 62 in the second groove 32 are arranged alternately without overlap on the surface parallel to the dimming structure 30, so that the first sub-pixel 61 and the second sub-pixel 62 can display the picture independently or together. By providing the first electrode 40 on the side of the dimming structure 30 close to the first substrate 10 and the second electrode 50 on the side close to the second substrate 20, the light transmittance of the dimming structure 30 can be controlled by controlling the electric field between the first electrode 40 and the second electrode 50, so that the dimming structure 30 can be controlled to be in a light-transmitting state and a light-impermeable state. When the dimming structure 30 is in a light-transmitting state, the light of the first sub-pixel 61 and the second sub-pixel 62 can pass through the dimming structure 30 to emit light toward the first substrate 10 and the second substrate 20, and the dimming structure 30 has no effect on the viewing angles of the first sub-pixel 61 and the second sub-pixel 62, so that double-sided wide viewing angle display can be achieved, and the switching between high resolution and low resolution can be achieved by controlling the light emission of the first sub-pixel 61 and / or the second sub-pixel 62. When the dimming structure 30 is in an opaque state, it has a light-shielding effect, so that the first sub-pixel 61 can only emit light toward the first substrate 10, and the second sub-pixel 62 can only emit light toward the second substrate 20, and the groove structure on the dimming structure 30 can converge the viewing angles of the first sub-pixel 61 and the second sub-pixel 62, so as to achieve a narrow viewing angle double-sided display to meet the anti-peeping requirements; further, the first sub-pixel 61 or the second sub-pixel 62 can be turned off to achieve a single-sided display, so that the privacy of the displayed content is better and the power consumption can be reduced. At the same time, by setting the dimming structure 30, there is no need to set a dimming layer on both sides of the sub-pixel, which can reduce the thickness of the panel; and since only one dimming structure 30 is set, only the first electrode 40 and the second electrode 50 need to be set on both sides of the dimming structure 30, which can simplify the control circuit and reduce the complexity of the circuit.

[0035] See also Figure 3 and Figure 4a , Figure 4b , Figure 3 is a schematic diagram of a process for preparing a display panel 100 provided in one embodiment of the present application. Figure 4a It corresponds to Figure 3 A process flow chart of steps S11 to S15, Figure 4b It corresponds to Figure 3 Specifically, the manufacturing method of the display panel 100 includes: S11: providing a carrier 11, depositing an electrochromic material layer 30a on the carrier 11, and performing a first patterning process to form a plurality of first grooves 31; S12: forming a first electrode 40 on a first surface of the electrochromic material layer 30a; S13: manufacturing a first sub-pixel 61 in the first groove 31; S14: Covering and bonding the first substrate 10; S15: peeling off the carrier 11; S21: turning over the electrochromic material layer 30a and performing a second patterning process to form a plurality of second grooves 32; S22: forming a second electrode 50 on the second surface of the electrochromic material layer 30a; S23: manufacturing a second sub-pixel 62 in the second groove 32; S24: Cover and bond the second substrate 20.

[0036] The preparation method provided by the above-mentioned embodiment can be used to prepare the display panel 100 provided in the above-mentioned embodiment. The structure and function of the display panel 100 are the same or similar to the structure and function of the display panel 100 in the above-mentioned embodiment, and the same technical effect can be achieved. Please refer to the above introduction for details, which will not be repeated here.

[0037] See also Figure 5 and Figure 6 , Figure 5 yes Figure 1 A schematic diagram of the light emission of the display panel in the narrow viewing angle double-sided display mode provided in the embodiment, Figure 6 yes Figure 1 Schematic diagram of the light emission of the display panel in the narrow viewing angle single-sided display mode provided in the embodiment. The dotted arrows radiating outward from the first sub-pixel 61 and / or the second sub-pixel 62 in the figure represent the outgoing light of the first sub-pixel 61 and / or the second sub-pixel 62, and the dotted arrows radiating outward from the first sub-pixel 61 and / or the second sub-pixel 62 in the following figures of this application all represent their outgoing light. In this embodiment, when the first electrode 40 and the second electrode 50 form a first preset electric field, the dimming structure 30 is opaque, and the display panel 100 is in the narrow viewing angle display mode. When the first sub-pixel 61 and the second sub-pixel 62 are turned on, the display panel 100 is in the narrow viewing angle double-sided display mode; when the first sub-pixel 61 or the second sub-pixel 62 is turned on, the display panel 100 is in the narrow viewing angle single-sided display mode.

[0038] Specifically, the voltage of the first electrode 40 and the voltage of the second electrode 50 can be controlled so that the first electrode 40 and the second electrode 50 form a first preset electric field, so that the dimming structure 30 is switched to a light-proof state under the action of the first preset electric field.

[0039] like Figure 5 As shown, when the dimming structure 30 is in an opaque state, the sidewall of the first groove 31 can have a convergent effect on the outgoing light of the first sub-pixel 61 to reduce the light exit angle of the first sub-pixel 61. The first sub-pixel 61 is displayed at a narrow viewing angle toward the first substrate 10, showing an anti-peeping effect, that is, it is visible at a positive viewing angle, and the display content cannot be observed at an angle deviating from the positive viewing angle. Similarly, the sidewall of the second groove 32 can have a convergent effect on the outgoing light of the second sub-pixel 62 to reduce the light exit angle of the second sub-pixel 62. The second sub-pixel 62 is displayed at a narrow viewing angle toward the second substrate 20, showing an anti-peeping effect.

[0040] In this display mode, the display content on one side of the first substrate 10 is determined by the first sub-pixel 61, and the display content on one side of the second substrate 20 is determined by the second sub-pixel 62, that is, the display content on both sides of the display panel 100 can be displayed independently without affecting each other, while achieving narrow viewing angle display on both sides to meet privacy requirements.

[0041] like Figure 6 As shown, when the first sub-pixel 61 is turned on and the second sub-pixel is turned off, the dimming structure 30 is in a light-proof state and can block the light from the first sub-pixel 61 toward the second substrate 20. Therefore, the first sub-pixel 61 emits light toward the first substrate 10, and the second sub-pixel 62 is turned off and does not emit light, so that the display panel 100 displays only on one side of the first substrate 10. Similarly, when the second sub-pixel 62 is turned on and the first sub-pixel 61 is turned off, the display panel 100 displays only on one side of the second substrate 20.

[0042] In this mode, unilateral small viewing angle display can be performed according to display requirements. For example, if display is required only on the first side or only on the second side, the first sub-pixel 61 or the second sub-pixel 62 can be controlled to be turned on. This can meet the unilateral display and anti-peeping requirements and reduce power consumption.

[0043] See also Figure 7 and Figure 8 , Figure 7 yes Figure 1 A schematic diagram of the light emission of the display panel provided in the embodiment in a wide viewing angle and high resolution display mode, Figure 8 yes Figure 1 Schematic diagram of light emission of a display panel in a wide viewing angle and low resolution display mode provided in an embodiment. In this embodiment, when the first electrode 40 and the second electrode 50 form a second preset electric field, the dimming structure 30 is transparent, and the display panel 100 is in a wide viewing angle display mode; when the first sub-pixel 61 and the second sub-pixel 62 are turned on, the display panel 100 is in a wide viewing angle and high resolution display mode; when the first sub-pixel 61 or the second sub-pixel 62 is turned on, the display panel 100 is in a wide viewing angle and low resolution display mode.

[0044] Specifically, the voltage of the first electrode 40 and the voltage of the second electrode 50 can be controlled so that the first electrode 40 and the second electrode 50 form a second preset electric field, so that the dimming structure 30 is switched to a light-transmitting state under the action of the second preset electric field. In the light-transmitting state, the dimming structure 30 has no shielding effect on the light of the first sub-pixel 61 and the second sub-pixel 62. Therefore, by controlling the dimming structure 30 to be in a light-transmitting state, the viewing angle of the display panel 100 can be relatively large. When anti-peeping is not required, the dimming structure 30 can be controlled to be in a light-transmitting state.

[0045] like Figure 7 As shown, when the first sub-pixel 61 and the second sub-pixel 62 are both turned on, the first sub-pixel 61 and the second sub-pixel 62 display together, that is, the display content on both sides is the same, and the display content is displayed by the first sub-pixel 61 and the second sub-pixel 62 emitting light together, and the pixel density is relatively large.

[0046] like Figure 8 As shown, when the first sub-pixel 61 is turned on and the second sub-pixel 62 is turned off, only the first sub-pixel 61 performs double-sided display, and the pixel density of the picture is relatively Figure 7 Similarly, when the second sub-pixel 62 is turned on and the first sub-pixel 61 is turned off, only the second sub-pixel 62 performs double-sided display, and the pixel density of the screen is relatively Figure 7 The embodiment also reduced by 50%.

[0047] In this embodiment, when double-sided large viewing angle display is performed, the switching between high resolution and low resolution can be achieved by controlling the first sub-pixel 61 and / or the second sub-pixel 62 to be turned on.

[0048] See also Fig. 9 , Fig. 9 for Figure 1 Schematic diagram of the light emission of the display panel in the high- and low-resolution mixed display mode provided in the embodiment. In the present embodiment, when the first electrode 40 and the second electrode 50 form a second preset electric field, the dimming structure 30 is light-transmissive. The display panel 100 includes a high-resolution display area and a low-resolution display area; in the high-resolution display area, the first sub-pixel 61 and the second sub-pixel 62 are both turned on; in the low-resolution display area, the first sub-pixel 61 or the second sub-pixel 62 is turned on. That is, by making a part of the area on the display panel 100 display at a high resolution and a part of the area display at a low resolution, high-quality display can be achieved while reducing power consumption.

[0049] In the embodiment of the present application, the dimming structure 30 is arranged in the plane, and only two control electrodes are required to realize all functions. The control is simple, there is no external screen, the cost is low, and a narrow viewing angle privacy mode can be additionally realized.

[0050] See also Fig.10 and Fig.11 , Fig.10 is a schematic diagram of the structure of a display panel provided in the second embodiment of the present application, Fig.11 yes Fig.10 A schematic diagram of a planar structure of an embodiment of the first electrode in the present application. In the embodiment of the present application, the first electrode 40 includes a plurality of first sub-electrodes 41 distributed in an array and insulated from each other; a first insulating layer 71 is further provided between the first electrode 40 and the first substrate 10, and a plurality of first via holes 711 are further provided in the first insulating layer 71; a first touch connection line 81 is provided between the first insulating layer 71 and the first substrate 10, and the first touch connection line 81 is electrically connected to the corresponding first sub-electrode 41 through the first via hole 711 for transmitting a first touch signal.

[0051] The second electrode 50 includes a plurality of second sub-electrodes 51 which are distributed in an array and insulated from each other. A second insulating layer 72 is provided between the second electrode 50 and the second substrate 20, and a plurality of second via holes 721 are provided in the second insulating layer 72. A second touch connection line 82 is provided between the second insulating layer 72 and the second substrate 20, and the second touch connection line 82 is electrically connected to the corresponding second sub-electrode 51 through the second via hole 721 for transmitting a second touch signal.

[0052] The first gap 401 between two adjacent first sub-electrodes 41 is located at the side wall of the first groove 31 , the second gap 501 between two adjacent second sub-electrodes 51 is located at the side wall of the second groove 32 , and the first gap 401 and the second gap 501 located on opposite sides of the same side wall are staggered.

[0053] Among them, by designing the first electrode 40 and the second electrode 50 into blocks, and connecting the touch connection lines to the first sub-electrode 41 and the second sub-electrode 51 accordingly, the first sub-electrode 41 and the second sub-electrode 51 can not only serve as control electrodes of the dimming structure 30, but also as touch electrodes, thereby realizing the touch function on both sides.

[0054] It should be noted that by making the first gap 401 between two adjacent first sub-electrodes 41 located at the side wall of the first groove 31, the second gap 501 between two adjacent second sub-electrodes 51 located at the side wall of the second groove 32, and the first gap 401 and the second gap 501 located on opposite sides of the same side wall are staggered, the problem of abnormal state switching response of the dimming structure 30 caused by the weakening of the electric field strength in part of the dimming structure 30 between the breaks in the first electrode 40 and the breaks in the second electrode 50 can be reduced.

[0055] It can be understood that the adjacent first grooves 31 and second grooves 32 share the same side wall of the dimming structure 30 on the side where they are close to each other, and by setting the slits of the first electrode 40 and the second electrode 50 on the side wall, it is beneficial to electrically connect the touch connection line with the corresponding first sub-electrode 41 or second sub-electrode 51. Furthermore, by staggering the slits on the opposite sides of the same side wall to ensure that both sides of the slit position can form a strong fringe electric field with the complete electrode on the opposite side, the normal response of the light-transmitting state of the dimming structure 30 can still be guaranteed.

[0056] See also Fig.12 and Fig.13 , Fig.12 is a control timing diagram of the first electrode and the second electrode provided in one embodiment of the present application, Fig.13 1 is a control timing diagram of the first electrode and the second electrode provided in another embodiment of the present application. In this embodiment, when the display panel 100 performs display work, it displays pictures frame by frame in sequence. Specifically, each frame includes a display stage T1 and a touch stage T2.

[0057] In the display stage T1, the first sub-electrode 41 serves as the cathode of the first sub-pixel 61 for transmitting a first cathode signal; the second sub-electrode 51 also serves as the cathode of the second sub-pixel 62 for transmitting a second cathode signal; and a first difference or a second difference is maintained between the first cathode signal and the second cathode signal to maintain the light-transmitting state or the light-opaque state of the dimming structure 30.

[0058] In the touch stage T2, the first sub-electrode 41 serves as the first touch electrode for transmitting the first touch signal; the second sub-electrode 51 serves as the second touch electrode for transmitting the second touch signal; and the first difference or the second difference is maintained between the first touch signal and the second touch signal to maintain the light-transmitting state or the light-opaque state of the dimming structure 30.

[0059] In the embodiment of the present application, when the voltage difference between the first electrode 40 and the second electrode 50 is 0V, a second preset electric field is formed, and under the action of the second preset electric field, the dimming structure 30 is in a light-transmitting state. When the voltage difference between the first electrode 40 and the second electrode 50 is 5V, a first preset electric field is formed, and under the action of the first preset electric field, the dimming structure 30 is in an opaque state.

[0060] like Fig.12As shown, in this embodiment, in each frame, the voltage difference between the first sub-electrode 41 and the second sub-electrode 51 is 0V, the dimming structure 30 is in a light-transmitting state, and the display panel 100 is in a double-sided wide-viewing angle display mode. That is, at any time in a frame, the voltage difference between the first sub-electrode 41 and the second sub-electrode 51 is 0V. Specifically, in the display stage T1, the first sub-electrode 41 and the second sub-electrode 51 serve as cathodes of the first sub-pixel 61 and the second sub-pixel 62, respectively, for transmitting cathode signals, and the cathode voltages on the first sub-electrode 41 and the second sub-electrode 51 remain unchanged. In the touch stage T2, the first sub-electrode 41 and the second sub-electrode 51 respectively serve as the first touch electrode and the second touch electrode, and are respectively used to transmit the first touch signal and the second touch signal to realize the touch function on both sides; at the same time, in order to keep the dimming structure 30 in a light-transmitting state, the voltage difference between the first touch signal and the second touch signal is maintained at 0V, that is, at any time in the touch stage T2, the voltage difference between the first touch signal and the second touch signal is 0V, so as to keep the state of the dimming structure 30 unchanged while realizing touch.

[0061] like Fig.13 As shown, in this embodiment, in each frame, the voltage difference between the first sub-electrode 41 and the second sub-electrode 51 is 5V, the dimming structure 30 is in an opaque state, and the display panel 100 is in a narrow viewing angle display mode. In the display stage T1, the first sub-electrode 41 and the second sub-electrode 51 serve as cathodes of the first sub-pixel 61 and the second sub-pixel 62, respectively, for transmitting cathode signals. It should be noted that in order to keep the dimming structure 30 in an opaque state, the voltage difference between the first sub-electrode 41 and the second sub-electrode 51 needs to be maintained at 5V. Therefore, if the cathode signal of the first sub-electrode 41 is Vcom as a reference, the cathode signal of the second sub-electrode 51 is (Vcom-5V). Correspondingly, in the touch stage T2, the high level of the first touch signal of the first sub-electrode 41 is VH, and the low level is VL, then the high level of the second touch signal of the second sub-electrode 51 is (VH-5V), and the low level is (VL-5V), so that the state of the dimming structure 30 is kept unchanged while the touch function is realized. In some embodiments, considering the limit range of the driving IC voltage, the cathode signal of the first sub-electrode 41 may be set to (Vcom+2.5V), and the cathode signal of the second sub-electrode 51 may be set to (Vcom-2.5V).

[0062] In the above embodiment, when the display panel 100 is in a wide viewing angle display mode, the dimming structure 30 is transparent so that the display content on both sides is in a mirror effect, that is, when a normal picture is viewed on one side of the first substrate 10, it is a mirror image of the picture when viewed on the side of the second substrate 20, which affects the user's perception, especially the displayed text content. Therefore, further, when user A is the main subject, the switching control is performed according to his position to ensure that the main person's viewing picture is normal. In the embodiment of the present application, since touch electrodes are provided on both sides, the user can switch the control through the touch function.

[0063] See also Fig.14 , Fig.14 yes Fig.10 The light-emitting state diagram of a display mode of the display panel in FIG. Further, for the display content of the picture + text mixture, the following settings can be made: the partial dimming structure 30 corresponding to the picture area 103 can be controlled by controlling the first sub-electrode 41 and the second sub-electrode 51 of the area to be a second preset electric field, so that the dimming structure 30 of the area is in a light-transmitting state, thereby realizing high-resolution picture display; the partial dimming structure 30 corresponding to the text area 104 can be controlled by controlling the first sub-electrode 41 and the second sub-electrode 51 of the area to be a first preset electric field, so that the dimming structure 30 of the area is in an opaque state, so that the first sub-pixel 61 displays the corresponding text content toward the side of the first substrate 10, and the second sub-pixel 62 displays the corresponding text content toward the side of the second substrate 20, and the first sub-pixel 61 and the second sub-pixel 62 are displayed independently, thereby realizing non-mirror text display on both sides. This display mode can not only maintain the fineness of the picture, but also solve the problem of text mirroring.

[0064] See also Figure 15-17 , Fig.15 is a schematic diagram of the planar position relationship of electrodes in a display panel provided in the third embodiment of the present application, Fig.16 is a schematic structural diagram of a display panel provided in the third embodiment of the present application, Fig.17: is a schematic diagram of the structure of another display panel provided by the fourth embodiment of the present application. In some embodiments, the first electrode 40 is stacked with a first insulating layer 71, a first scanning touch electrode 91 and a first data touch electrode 92, a third insulating layer 73, a first scanning line 83, a fifth insulating layer 75, and a first data line 84 in sequence on one side close to the first substrate 10; wherein the first scanning touch electrodes 91 and the first data touch electrodes 92 are arranged in an array and insulated from each other, the first scanning touch electrodes 91 in the same row are connected to the same first scanning line 83, and the first data touch electrodes 92 in the same column are connected to the same first data line 84. The second electrode 50 is stacked with a second insulating layer 72, a second scanning touch electrode and a second data touch electrode 94, a fourth insulating layer 74, a second scanning line, a sixth insulating layer 76, and a second data line 86 in sequence on one side close to the second substrate 20; wherein the second scanning touch electrodes and the second data touch electrodes 94 are arranged in an array and insulated from each other, the second scanning touch electrodes in the same row are connected to the same second scanning line, and the second data touch electrodes 94 in the same column are connected to the same second data line 86.

[0065] The first scanning touch electrode 91 and the first data touch electrode 92 are arranged on part of the dimming structure 30 between adjacent first grooves 31, and are staggered with the first touch connection line 81; specifically, the first touch connection line 81 is arranged close to one of the first grooves 31, the first scanning touch electrode 91 and the second data touch electrode 94 are arranged close to the adjacent first groove 31, and these touch structures are arranged on the side wall between the adjacent first groove 31 and the second groove 32, so as to reduce the influence of the first touch connection line 81, the first scanning line and the first data line 84 on the screen display. Similarly, the second scanning touch electrode, the second data touch electrode 94, the second touch connection line 82, the second scanning line and the second data line 86 are also arranged in this way.

[0066] Specifically, the first scanning touch electrode 91 and the first data touch electrode 92 are pixel-level electrodes, and are both transparent electrodes. The specific material may be a transparent conductive material, such as indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO) and other transparent conductive materials. The first scanning touch electrode 91 and the first data touch electrode 92 are separated from the first sub-electrode 41 by an insulating layer. The first scanning touch electrode 91 is electrically connected to the first scanning line 83 through a connecting via, and the first data touch electrode 92 is electrically connected to the first data line 84 through a connecting via. Similarly, the second scanning touch electrode, the second data touch electrode 94, the second touch connection line 82, the second scanning line and the second data line 86 are also arranged in this way.

[0067] like Fig.16As shown, in this embodiment, the scanning lines and data lines can be wired first, and then the scanning touch electrodes and data touch electrodes can be processed. In this way, the scanning lines or data lines on the same display side can share the mask with the touch connection lines, and the scanning touch electrodes and data touch electrodes on the same display side can share the mask.

[0068] like Fig.17 As shown, in this embodiment, the process of scanning touch electrodes and data touch electrodes can be performed first, and then the scanning lines and data lines can be wired. In this way, the scanning touch electrodes, data touch electrodes and touch connection lines on the same display side can share the same mask.

[0069] Through the above settings, the time of one frame can be divided into the display stage T1 and the touch stage T2 by time-division multiplexing the scan lines and data lines. In the display stage T1, the scan lines and data lines are used to normally transmit scan signals and data signals, thereby driving the sub-pixels to normally display the corresponding images. In the touch stage T2, the scan lines are multiplexed into horizontal touch lines, which are used to transmit low-voltage pulses to the scan touch electrodes for sensing detection, so as to complete the row positioning of the touch position; the data lines are multiplexed into vertical touch lines, which are used to transmit pulse square waves to the data touch electrodes for sensing detection, so as to complete the column positioning of the touch position; through row positioning and column positioning, the point coordinates of the precise touch position are obtained, thereby realizing pixel-level precise touch. This precise touch mode can be applied to scenarios such as precise drawing and high-precision touch demand operations.

[0070] It should be noted that in the touch stage T2, when the scan line transmits a low voltage pulse, it is necessary to control the gate-drain voltage Vgd of the driving transistor to be lower than the threshold voltage of the driving transistor, so that the driving transistor is in a cut-off state to avoid abnormal images. At the same time, in the touch stage T2, the first electrode 40 and the second electrode 50 can maintain normal cathode signal output without special waveform requirements.

[0071] In some embodiments, the first scan line 83, the first data line 84, the first scan touch electrode 91, the first data touch electrode 92, the second scan line, the second data line 86, the second scan touch electrode, and the second data touch electrode 94 are all disposed on the sidewall between the adjacent first groove 31 and the second groove 32, so that the touch structure does not completely cover the first sub-electrode 41 and the second sub-electrode 51, so that the first sub-electrode 41 and the second sub-electrode 51 can still maintain good touch sensing. When the display panel 100 does not require high-precision touch, the first sub-electrode 41 and the second sub-electrode 51 can be switched to perform touch sensing to reduce power consumption.

[0072] In the display panel 100 in the above embodiment, in order to achieve that the first sub-pixel 61 and the second sub-pixel 62 can support independent display images and maintain high-resolution display when displaying an image together, the first sub-pixel 61 and the second sub-pixel 62 adjacent to each other on the front and back surfaces are set to sub-pixels of different colors, and a circulation unit is ensured to avoid the same color of adjacent sub-pixels on the front and back surfaces.

[0073] It can be understood that the pixel arrangement rules of the first sub-pixel 61 and the second sub-pixel 62 need to meet the following three conditions: First, when the first sub-pixel 61 and the second sub-pixel 62 participate in the double-sided display, the first sub-pixel 61 and the second sub-pixel 62 jointly form the sub-pixel of the screen, that is, the first sub-pixel 61 and the second sub-pixel 62 both emit light to participate in the display work. The first sub-pixel 61 and the second sub-pixel 62 need to form a plurality of array-distributed circulation units, each of which includes at least one red sub-pixel, one green sub-pixel, and one blue sub-pixel.

[0074] Second, when only the first sub-pixel 61 participates in the picture display, the first sub-pixel 61 forms the sub-pixel of the picture, that is, only the first sub-pixel 61 emits light to participate in the display work, and the second sub-pixel 62 is turned off. The first sub-pixels 61 are arranged to form a plurality of array-distributed circulation units, each of which includes at least one red sub-pixel, one green sub-pixel, and one blue sub-pixel.

[0075] Third, when only the second sub-pixel 62 participates in the picture display, the second sub-pixel 62 forms the sub-pixel of the picture, that is, only the second sub-pixel 62 emits light to participate in the display work, and the first sub-pixel 61 is turned off. The second sub-pixels 62 are arranged to form a plurality of array-distributed circulation units, each of which includes at least one red sub-pixel, one green sub-pixel and one blue sub-pixel.

[0076] like Figure 1 As shown, for example, the circulation unit of the first sub-pixel 61 is RGB, and the circulation unit of the second sub-pixel 62 is BRG. At this time, the projection of the first sub-pixel 61 and the second sub-pixel 62 on the dimming structure 30 is RBGRBG, which can achieve high-resolution double-sided display while ensuring normal single-sided display. Among them, R represents the red sub-pixel, G represents the green sub-pixel, and B represents the blue sub-pixel. In other embodiments, the arrangement of the first sub-pixel 61 and the second sub-pixel 62 can also be other methods, as long as the above conditions are met, and they are not listed here one by one.

[0077] See also Fig.18 , Fig.18: is a schematic diagram of the structure of the display panel provided in the fifth embodiment of the present application. In this embodiment, the dimming structure 30 includes a first dimming layer 33, a second dimming layer 34 and a third dimming layer 35; the side wall of the adjacent first groove 31 and the second groove 32 close to each other is the first dimming layer 33, the bottom wall of the first groove 31 close to the second substrate 20 is the second dimming layer 34, and the bottom wall of the second groove 32 close to the first substrate 10 is the third dimming layer 35; the dimming structure 30 has an opaque state and a transparent state; under the same preset electric field, the second dimming layer 34 and the third dimming layer 35 are opposite to the first dimming layer 33 in terms of the light transmission state.

[0078] Among them, the partial dimming structure 30 of the sidewall structure between adjacent sub-pixels is the first dimming layer 33, the corresponding partial dimming structure 30 on the side of the first sub-pixel 61 close to the second substrate 20 is the second dimming layer 34, and the corresponding partial dimming structure 30 on the side of the second sub-pixel 62 close to the first substrate 10 is the third dimming layer 35. Among them, the electrical property requirements of the first dimming layer 33 are opposite to those of the second dimming layer 34, and are also opposite to those of the third dimming layer 35, and the electrical property requirements of the second dimming layer 34 are the same as those of the third dimming layer 35; that is, under the same electric field, the first dimming layer 33 is in a light-transmitting state, and the second dimming layer 34 and the third dimming layer 35 are both in a light-impermeable state, or the first dimming layer 33 is in a light-impermeable state, and the second dimming layer 34 and the third dimming layer 35 are both in a light-transmitting state.

[0079] Specifically, the display panel 100 can be prepared by the following implementation mode, and please refer to the following introduction for details.

[0080] See also Fig.19 and Fig.20a , Fig.20b , Fig.19 is a schematic flow chart of a method for preparing a display panel 100 provided in another embodiment of the present application. Fig.20a It corresponds to Fig.19 A process flow chart of steps S31 to S36, Fig.20b It corresponds to Fig.19 Specifically, the manufacturing method of the display panel 100 includes: S31: providing a carrier 11, depositing a first electrochromic material layer 33a on the carrier 11, and performing a first patterning process to form a plurality of first pixel openings P1 distributed in an array; S32: depositing a second electrochromic material layer at the bottom of the first pixel opening P1 to form a second dimming layer; S33: forming a first electrode 40 on the surface of the first electrochromic material layer 33a and the second electrochromic material layer; S34: manufacturing a first sub-pixel 61 in the first pixel opening P1; S35: Covering and bonding the first substrate 10; S36: Peeling off the carrier 11; S41: turning over the first electrochromic material layer 33a and performing a second patterning process to form a plurality of second pixel openings P2; the second pixel openings P2 are opened between adjacent first pixel openings P1; S42: depositing a third electrochromic material layer at the bottom of the second pixel opening P2 to form a third dimming layer; S43: forming a second electrode 50 on the surface of the first electrochromic material layer 33a and the third electrochromic material layer; S44: manufacturing a second sub-pixel 62 in the second pixel opening P2; S45: Cover and bond the second substrate 20.

[0081] Specifically, the first pixel opening P1 corresponds to the first groove 31 structure of the display panel 100 in the above embodiment, and the second pixel opening P2 corresponds to the second groove 32 structure of the display panel 100 in the above embodiment. The first electrochromic material layer 33a is patterned twice to form the first dimming layer in the above embodiment. The first dimming layer, the second dimming layer and the third dimming layer together constitute the dimming structure 30.

[0082] The display panel 100 manufactured in this embodiment, by making the dimming structure 30 include a first dimming layer, a second dimming layer, and a third dimming layer with opposite electrical requirements, can control the voltage between the first electrode 40 and the second electrode 50 to control the electric field between the first electrode 40 and the second electrode 50, thereby controlling the states of the first dimming layer, the second dimming layer, and the third dimming layer.

[0083] For example, when a first preset electric field is formed between the first electrode 40 and the second electrode 50, the first dimming layer is in an opaque state, and the second dimming layer and the third dimming layer are in a translucent state. At this time, the first dimming layer can converge the viewing angles of the first sub-pixel 61 and the second sub-pixel 62, thereby achieving a narrow viewing angle display to meet the anti-peeping requirements of the display panel 100. When a second preset electric field is formed between the first electrode 40 and the second electrode 50, the first dimming layer is in a translucent state, and the second dimming layer and the third dimming layer are in an opaque state. The display panel 100 can achieve a wide viewing angle display, and can achieve a double-sided display or a single-sided display.

[0084] See also Fig.21 and Fig. 22 , Fig.21 yes Fig.18 A schematic diagram of the light emission of the display panel provided in the embodiment in the wide viewing angle double-sided display mode, Fig. 22 yes Fig.18Schematic diagram of light emission of a display panel in a wide viewing angle single-sided display mode provided in an embodiment. In some embodiments, when the first electrode 40 and the second electrode 50 form a second preset electric field, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in an opaque state, and the display panel 100 is in a first wide viewing angle display mode.

[0085] Specifically, the voltage of the first electrode 40 and the second electrode 50 can be controlled so that a second preset electric field is formed between the first electrode 40 and the second electrode 50. For example, by controlling the voltage of the first electrode 40 and the second electrode 50 so that the voltage difference between the first electrode 40 and the second electrode 50 is 0V, a second preset electric field is formed, at which time the first dimming layer is in a light-transmitting state, and the second dimming layer and the third dimming layer are in a light-impeding state. In this state, the first dimming layer is light-transmissive and has no convergence effect on the viewing angle of the sub-pixel, and the display panel 100 displays at a wide viewing angle; the second dimming layer is light-impermeable and is located on the side of the first sub-pixel 61 close to the second substrate 20, and has a blocking effect on the light emitted by the first sub-pixel 61 toward the second substrate 20, so that the first sub-pixel 61 only displays the image toward the first substrate 10 side; the third dimming layer is light-impermeable and is located on the side of the second sub-pixel 62 close to the first substrate 10, and has a blocking effect on the light emitted by the second sub-pixel 62 toward the first substrate 10, so that the second sub-pixel 62 only displays the image toward the second substrate 20 side.

[0086] like Fig.21 As shown, in this embodiment, the first sub-pixel 61 and the second sub-pixel 62 are both turned on, the first sub-pixel 61 displays in the direction of the first substrate 10, and the second sub-pixel 62 displays in the direction of the second substrate 20, and the first sub-pixel 61 and the second sub-pixel 62 can display independently. That is, the first sub-pixel 61 displays the first image, and the second sub-pixel 62 displays the second image. The first image and the second image can be the same or different, so that the two sides of the display panel 100 can display the same picture or different pictures, thereby meeting different usage scenarios.

[0087] like Fig. 22 As shown, in this embodiment, the first sub-pixel 61 is turned on, the second sub-pixel 62 is turned off, and the first sub-pixel 61 displays the picture in the direction of the first substrate 10, so that the display panel 100 only displays on one side of the first substrate 10, thereby realizing single-sided display. Similarly, when the second sub-pixel 62 is turned on and the first sub-pixel 61 is turned off, the second sub-pixel 62 displays the picture in the direction of the second substrate 20, so that the display panel 100 only displays on one side of the second substrate 20, thereby realizing unit display. Specifically, the display surface can be switched according to the display demand, so that the display panel 100 can switch the display surface with one key according to the user demand.

[0088] See also Fig.23 and Fig.24 , Fig.23 yes Fig.18 A schematic diagram of a display panel providing an embodiment of the present invention lighting up in a first narrow viewing angle double-sided display mode, Fig.24 yes Fig.18 Another schematic diagram of the display panel 100 in the first narrow viewing angle double-sided display mode provided in the embodiment. In some embodiments, when the first electrode 40 and the second electrode 50 form a first preset electric field, the first dimming layer is in an opaque state, the second dimming layer and the third dimming layer are in a transparent state, and the display panel 100 is in the first narrow viewing angle display mode.

[0089] Specifically, the voltage of the first electrode 40 and the second electrode 50 can be controlled so that a first preset electric field is formed between the first electrode 40 and the second electrode 50. For example, by controlling the voltage of the first electrode 40 and the second electrode 50, the voltage difference between the first electrode 40 and the second electrode 50 is 5V, and the first preset electric field is formed. At this time, the first dimming layer is in an opaque state, and the second dimming layer and the third dimming layer are in a transparent state. In this state, the first dimming layer is opaque and has a shielding effect on the emitted light of the sub-pixel, so that the light emitting angle of the first sub-pixel 61 and the second sub-pixel 62 is reduced; the second dimming layer and the third dimming layer are in a transparent state, so that the first sub-pixel 61 and the second sub-pixel 62 can emit light toward both sides, so that the display viewing angle of the display panel 100 on the first substrate 10 side and the display viewing angle on the second substrate 20 side are reduced, which can meet the double-sided display anti-peeping requirements.

[0090] like Fig.23 As shown, in this embodiment, the first sub-pixel 61 and the second sub-pixel 62 are both turned on to display images, and the display panel 100 displays images on both the first substrate 10 and the second substrate 20, which can achieve double-sided narrow viewing angle and high-resolution display. In scenarios where high resolution requirements and anti-peeping are required, the display panel 100 can be switched to this display mode for display work.

[0091] like Fig.24As shown, in this embodiment, only the first sub-pixel 61 is turned on and the second sub-pixel 62 is turned off. At this time, only the first sub-pixel 61 refers to the display image, and the display panel 100 displays images on both the first substrate 10 and the second substrate 20, which can achieve double-sided narrow viewing angle and low-resolution display. In scenarios where the resolution requirement is not high and anti-peeping is required, the display panel 100 can be switched to this display mode for display work. When high resolution is not required, by switching the display panel 100 to low-resolution display, power consumption can be effectively reduced because the second sub-pixel 62 is turned off. In some embodiments, according to display needs or according to the display characteristics of the first sub-pixel 61 and the second sub-pixel 62, it is possible to choose to turn on the first sub-pixel 61 and turn off the second sub-pixel 62, or turn off the first sub-pixel 61 and turn on the second sub-pixel 62, or it can also be switched according to the situation.

[0092] See also Fig.25 , Fig.25 yes Fig.18 Another schematic diagram of the light emission of the display panel 100 in the first narrow viewing angle double-sided display mode provided in the embodiment. In this embodiment, the display surface of the display panel 100 can be partitioned according to the characteristics of the image to be displayed, and divided into a high-resolution area 105 and a low-resolution area 106. The area in the image that requires high-resolution display corresponds to the high-resolution area 105, and the area that does not require high-resolution display corresponds to the low-resolution area 106. When displaying, the first sub-pixel 61 and the second sub-pixel 62 in the high-resolution area 105 are both turned on to participate in the image display, and only the first sub-pixel 61 or the second sub-pixel 62 in the low-resolution area 106 is turned on to participate in the image display; by using this display mode to perform high- and low-resolution mixed display, while reducing power consumption, the quality of image display can also be maintained.

[0093] See also Fig.26 and Fig. 27 , Fig.26 is a schematic diagram of the structure of a display panel provided in a sixth embodiment of the present application, Fig. 27 yes Fig.26 A schematic diagram of a planar structure of the first electrode in FIG. In some embodiments, the first electrode 40 includes a third sub-electrode 42 and a fourth sub-electrode 43 that are insulated from each other, the third sub-electrode 42 is disposed on a side surface of the third dimming layer close to the first substrate 10; the fourth sub-electrode 43 is disposed on a groove wall surface of the first groove 31 and a side surface of the adjacent first dimming layer close to the first substrate 10; the second electrode 50 includes a fifth sub-electrode 52 and a sixth sub-electrode 53 that are insulated from each other, the fifth sub-electrode 52 is disposed on a side surface of the second dimming layer close to the second substrate 20; the sixth sub-electrode 53 is disposed on a groove wall surface of the second groove 32 and a side surface of the adjacent first dimming layer close to the second substrate 20.

[0094] In this embodiment, the ends of the third sub-electrode 42 located on the same side are electrically connected through the first connecting portion 441, the ends of the fourth sub-electrode 43 located on the same side are electrically connected through the second connecting portion 442, the ends of the fifth sub-electrode 52 located on the same side are electrically connected through the third connecting portion, and the ends of the sixth sub-electrode 53 located on the same side are electrically connected through the fourth connecting portion.

[0095] Among them, in the first electrode 40, the third sub-electrode 42 and the fourth sub-electrode 43 can extend along the first direction X or the second direction Y, and the third sub-electrode 42 and the fourth sub-electrode 43 can be arranged alternately in sequence along the second direction Y or the first direction X, and the ends of the plurality of third sub-electrodes 42 located on the first side are electrically connected through the first connecting portion 441 to form a "comb-shaped" electrode, and the ends of the plurality of fourth sub-electrodes 43 located on the second side are electrically connected through the second connecting portion 442 to form another "comb-shaped" electrode; wherein the first side is opposite to the second side.

[0096] Similarly, in the second electrode 50, the fifth sub-electrode 52 and the sixth sub-electrode 53 may also extend along the first direction X or the second direction Y, and the fifth sub-electrode 52 and the sixth sub-electrode 53 may be arranged alternately in sequence along the second direction Y or the first direction X, and the ends of the plurality of fifth sub-electrodes 52 located on the first side are electrically connected through the first connecting portion 441 to form a "comb-shaped" electrode, and the ends of the plurality of sixth sub-electrodes 53 located on the second side are electrically connected through the second connecting portion 442 to form another "comb-shaped" electrode; wherein the first side is opposite to the second side. Specifically, the third sub-electrode 42, the fourth sub-electrode 43, the fifth sub-electrode 52 and the sixth sub-electrode 53 have the same extension direction, so that the overlapping area between the third sub-electrode 42 and the sixth sub-electrode 53, and between the fourth sub-electrode 43 and the fifth sub-electrode 52 in the direction perpendicular to the display panel 100 is larger, so as to better form a preset electric field, thereby better controlling the state of the dimming structure 30.

[0097] Specifically, when a first preset electric field is formed between the third sub-electrode 42 and the sixth sub-electrode 53, the third dimming layer is in a light-transmitting state; when a first preset electric field is formed between the fourth sub-electrode 43 and the fifth sub-electrode 52, the second dimming layer is in a light-transmitting state; when a second preset electric field is formed between the fourth sub-electrode 43 and the sixth sub-electrode 53, the first dimming layer is in a light-transmitting state.

[0098] When a second preset electric field is formed between the third sub-electrode 42 and the sixth sub-electrode 53, the third dimming layer is in an opaque state; when a second preset electric field is formed between the fourth sub-electrode 43 and the fifth sub-electrode 52, the second dimming layer is in an opaque state; when a first preset electric field is formed between the fourth sub-electrode 43 and the sixth sub-electrode 53, the first dimming layer is in an opaque state.

[0099] See also Fig.28 , Fig.28 yes Fig.26A schematic diagram of the light emission of the display panel in the second wide viewing angle display mode. In this embodiment, when the third sub-electrode 42 and the sixth sub-electrode 53 form the first preset electric field, the fourth sub-electrode 43 and the fifth sub-electrode 52 form the first preset electric field, and the fourth sub-electrode 43 and the sixth sub-electrode 53 form the second preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the display panel 100 is in the second wide viewing angle display mode.

[0100] In this display mode, the first dimming layer, the second dimming layer and the third dimming layer of the dimming structure 30 are all in a light-transmitting state. Similar to the above embodiment, in this mode, when high-resolution display is required, the first sub-pixel 61 and the second sub-pixel 62 can be turned on to participate in image display; when high-resolution display is not required, the first sub-pixel 61 or the second sub-pixel 62 can be turned on, and only the first sub-pixel 61 or only the second sub-pixel 62 refers to the image display to reduce power consumption; or, the display surface can be partitioned into a high-resolution area 105 and a low-resolution area 106, and the first sub-pixel 61 and the second sub-pixel 62 in the high-resolution area are both turned on to participate in image display, and only the first sub-pixel 61 or only the second sub-pixel 62 in the low-resolution area 106 is turned on to participate in image display, which can maintain high-quality display and appropriately reduce power consumption. The three display modes can be switched according to user needs.

[0101] See also Fig.29 , Fig.29 yes Fig.26 A schematic diagram of the light emission of the display panel in the second narrow viewing angle display mode. In this embodiment, the third sub-electrode 42 and the sixth sub-electrode 53 form the second preset electric field, the fourth sub-electrode 43 and the fifth sub-electrode 52 form the second preset electric field, and when the fourth sub-electrode 43 and the sixth sub-electrode 53 form the first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are in an opaque state, and the display panel 100 is in the second narrow viewing angle display mode.

[0102] In this display mode, the first dimming layer, the second dimming layer and the third dimming layer of the dimming structure 30 are all in an opaque state. Similar to the above embodiment, this display mode can meet the anti-peeping requirements. At the same time, when double-sided display is required, the first sub-pixel 61 and the second sub-pixel 62 can be turned on to display images respectively. The images displayed by the first sub-pixel 61 and the second sub-pixel 62 can be the same or different, and can be set according to actual needs; when only one side of the first substrate 10 is required to display, only the first sub-pixel 61 can be turned on and the second sub-pixel 62 can be turned off; when only one side of the second substrate 20 is required to display, only the second sub-pixel 62 can be turned on and the first sub-pixel 61 can be turned off.

[0103] See also Fig.30 and Fig.31 , Fig.30 is a schematic diagram of the structure of a display panel provided in a seventh embodiment of the present embodiment, Fig.31 yes Fig.30 In some embodiments, the fourth sub-electrode 43 can be further divided into a first side electrode 431, a bottom wall electrode 433 and a second side electrode 432. The first side electrode 431 is disposed on one side wall surface of the first groove 31, the second side electrode 432 is disposed on the other side wall surface of the first groove 31, and the bottom wall electrode 433 is disposed on the bottom wall surface of the first groove 31.

[0104] In this embodiment, the ends of the third sub-electrodes 42 located on the same side are electrically connected through the first connecting portion 441; the ends of the first side electrodes 431 located on the same side are electrically connected through the first sub-connecting portion 451, the ends of the second side electrodes 432 located on the same side are electrically connected through the second sub-connecting portion 453, and the ends of the bottom wall electrodes 433 located on the same side are electrically connected through the third sub-connecting portion 452; the ends of the fifth sub-electrodes 52 located on the same side are electrically connected through the third connecting portion, and the ends of the sixth sub-electrodes 53 located on the same side are electrically connected through the fourth connecting portion.

[0105] The extension direction of the first side electrode 431, the bottom wall electrode 433 and the second side electrode 432 is the same as the extension direction of the third sub-electrode 42. The ends of the multiple first side electrodes 431 located on the first side are electrically connected through the first sub-connection part 451 to form a "comb-shaped" electrode; the ends of the multiple second side electrodes 432 located on the second side are electrically connected through the second sub-connection part 453 to form another "comb-shaped" electrode; the ends of the bottom wall electrode 433 located on the second side are electrically connected through the third sub-connection part 452 to form another "comb-shaped" electrode; wherein the first side is opposite to the second side. Specifically, the specific structures of the fourth sub-electrode 43 and the fifth sub-electrode 52 are the same as those in the above embodiments.

[0106] Specifically, when the first side electrode 431 and the sixth sub-electrode 53 form the second preset electric field, the first dimming layer 33 provided with the first side electrode 431 is in a light-transmitting state, that is, the first dimming layer 33 on one side of the first groove 31, and the first dimming layer 33 is defined as the first dimming layer 33 / a. When the second side electrode 432 and the sixth sub-electrode 53 form the second preset electric field, the first dimming layer 33 provided with the second side electrode 432 is in a transparent state, that is, the first dimming layer 33 on the other side of the first groove 31, and the first dimming layer 33 is defined as the first dimming layer 33 / b. When the third sub-electrode 42 and the sixth sub-electrode 53 form the first preset electric field, the third dimming layer 35 is in a light-transmitting state. When the bottom wall electrode 433 and the fifth sub-electrode 52 form the first preset electric field, the second dimming layer 34 is in a light-transmitting state.

[0107] When the first side electrode 431 and the sixth sub-electrode 53 form a first preset electric field, the first dimming layer 33 / a is in an opaque state. When the second side electrode 432 and the sixth sub-electrode 53 form a first preset electric field, the first dimming layer 33 / b is in an opaque state. When the third sub-electrode 42 and the sixth sub-electrode 53 form a second preset electric field, the third dimming layer 35 is in an opaque state. When the bottom wall electrode 433 and the fifth sub-electrode 52 form a second preset electric field, the second dimming layer 34 is in an opaque state.

[0108] In this embodiment, by dividing the fourth sub-electrode 43 into a first side electrode 431 corresponding to the first dimming layer 33 / a on one side of the first groove 31, a bottom wall electrode 433 corresponding to the bottom wall of the first groove 31, and a second side electrode 432 corresponding to the first dimming layer 33 / b on the other side of the first groove 31, the first dimming layer 33 / a located on one side of the first sub-pixel 61 and the first dimming layer 33 / b located on the other side of the first sub-pixel 61 can be further independently controlled separately, so that the display panel 100 can realize more display modes as follows in addition to the display modes in the above embodiments, so that the display panel 100 can also adapt to more usage scenarios.

[0109] See also Fig.32 , Fig.32 yes Fig.30 A schematic diagram of the light emission of the display panel in the double-sided first side viewing angle display mode. In this embodiment, the first side electrode 431 and the sixth sub-electrode 53 form a second preset electric field, the bottom wall electrode 433 and the fifth sub-electrode 52 form a second preset electric field, the third sub-electrode 42 and the sixth sub-electrode 53 form a second preset electric field, and when the second side electrode 432 and the sixth sub-electrode 53 form the first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer provided with the second side electrode 432 are in an opaque state, and the first dimming layer provided with the first side electrode 431 is in a transparent state, and the display panel 100 is in the double-sided first side viewing angle display mode.

[0110] Specifically, taking the first side as the left side as an example, in this display mode, only the first dimming layer 33 / a is in a light-transmitting state, and the first dimming layer 33 / b, the second dimming layer and the third dimming layer are all in an opaque state. In this state, the first dimming layer 33 / a on the left side of the first sub-pixel 61 does not block the outgoing light of the first sub-pixel 61, so that the first sub-pixel 61 can be displayed toward the front viewing angle and the left viewing angle, and the display content cannot be seen at the right viewing angle. Similarly, taking the second sub-pixel 62 as the main body, the first dimming layer 33 / a on the left side of the second sub-pixel 62 does not block the outgoing light of the second sub-pixel 62, so that the second sub-pixel 62 can be displayed toward the front viewing angle and the left viewing angle, and the display content cannot be seen at the right viewing angle.

[0111] It is easy to understand that in some embodiments, only the first sub-pixel 61 can be turned on and the second sub-pixel 62 can be turned off, so that the display panel 100 can be displayed only on one side of the first substrate 10, and can be displayed at a front viewing angle and a left viewing angle. In some embodiments, as needed, only the second sub-pixel 62 can be turned on and the first sub-pixel 61 can be turned off, so that the display panel 100 can be displayed only on one side of the second substrate 20, and can be displayed at a front viewing angle and a left viewing angle. By turning off the first sub-pixel 61 or the second sub-pixel 62, single-sided front viewing angle and left viewing angle display can be achieved.

[0112] In one embodiment, taking the example of forming a first preset electric field when the voltage difference between the two electrodes is 5V and forming a second preset electric field when the voltage difference between the two electrodes is 0V, the first side electrode 431 can be 0V, the sixth sub-electrode 53 can be 0V, the second side electrode 432 can be 5V or (-5)V, the bottom wall electrode 433 can be 0V, the third sub-electrode 42 can be 0V, and the fifth sub-electrode 52 can be 0V, thereby realizing the above-mentioned double-sided or single-sided first side viewing angle display mode.

[0113] See also Fig.33 , Fig.33 yes Fig.30 A schematic diagram of the light emission of the display panel in the double-sided second side viewing angle display mode. In this embodiment, the first side electrode 431 and the sixth sub-electrode 53 form a first preset electric field, the bottom wall electrode 433 and the fifth sub-electrode 52 form a second preset electric field, the third sub-electrode 42 and the sixth sub-electrode 53 form a second preset electric field, and when the second side electrode 432 and the sixth sub-electrode 53 form the second preset electric field, the first dimming layer, the second dimming layer, and the third dimming layer provided with the first side electrode 431 are in an opaque state, and the first dimming layer provided with the second side electrode 432 is in a transparent state, and the display panel 100 is in the double-sided second side viewing angle display mode.

[0114] Specifically, taking the second side as the right side as an example, in this display mode, only the first dimming layer 33 / b is in a light-transmitting state, and the first dimming layer 33 / a, the second dimming layer and the third dimming layer are all in an opaque state. In this state, the first dimming layer 33 / b on the right side of the first sub-pixel 61 does not block the outgoing light of the first sub-pixel 61, so that the first sub-pixel 61 can be displayed toward the front viewing angle and the right viewing angle, and the display content cannot be seen at the left viewing angle. Similarly, taking the second sub-pixel 62 as the main body, the first dimming layer 33 / b on the right side of the second sub-pixel 62 does not block the outgoing light of the second sub-pixel 62, so that the second sub-pixel 62 can be displayed toward the front viewing angle and the right viewing angle, and the display content cannot be seen at the left viewing angle.

[0115] It is easy to understand that in some embodiments, only the first sub-pixel 61 can be turned on and the second sub-pixel 62 can be turned off, so that the display panel 100 can be displayed only on one side of the first substrate 10, and can be displayed at the front viewing angle and the right viewing angle. In some embodiments, as needed, only the second sub-pixel 62 can be turned on and the first sub-pixel 61 can be turned off, so that the display panel 100 can be displayed only on one side of the second substrate 20, and can be displayed at the front viewing angle and the right viewing angle. By turning off the first sub-pixel 61 or the second sub-pixel 62, single-sided front viewing angle and right viewing angle display can be achieved.

[0116] In one embodiment, taking the example of forming a first preset electric field when the voltage difference between the two electrodes is 5V and forming a second preset electric field when the voltage difference between the two electrodes is 0V, the first side electrode 431 can be 5V or (-5)V, the sixth sub-electrode 53 can be 0V, the second side electrode 432 can be 0V, the bottom wall electrode 433 can be 0V, the third sub-electrode 42 can be 0V, and the fifth sub-electrode 52 can be 0V, thereby realizing the above-mentioned double-sided or single-sided first side viewing angle display mode.

[0117] See also Fig.34 , Fig.34 yes Fig.30 A schematic diagram of the light emission of the display panel in the double-sided and double-side viewing angle display mode. In this embodiment, the third sub-electrode 42 and the sixth sub-electrode 53 form a first preset electric field, the first side electrode 431 and the sixth sub-electrode 53 form a second preset electric field, the bottom wall electrode 433 and the fifth sub-electrode 52 form a first preset electric field, the second side electrode 432 and the sixth sub-electrode 53 form a first preset electric field, the second dimming layer, the first dimming layer provided with the first side electrode 431 and the third dimming layer are in a light-transmitting state, the first dimming layer provided with the second side electrode 432 is in an opaque state, and the display panel 100 is in a double-sided and double-side viewing angle display mode.

[0118] Specifically, taking the first side as the left side and the second side as the right side as an example, in this display mode, one of the first dimming layer 33 / a and the first dimming layer 33 / b is in a light-transmitting state and the other is in an opaque state, and the second dimming layer and the third dimming layer are both in a light-transmitting state; in this embodiment, the first dimming layer 33 / a is in a light-transmitting state and the first dimming layer 33 / b is in an opaque state as an example.

[0119] In this state, the first sub-pixel 61 and the second sub-pixel 62 are displayed on both the side facing the first substrate 10 and the side facing the second substrate 20. On the side of the first substrate 10, since the first dimming layer 33 / a and the third dimming layer are light-transmissive, the first sub-pixel 61 can be displayed toward the front viewing angle and the left viewing angle, and the second sub-pixel 62 can be displayed toward the front viewing angle and the right viewing angle. Similarly, on the side of the second substrate 20, since the first dimming layer 33 / a and the second dimming layer are light-transmissive, the first sub-pixel 61 can be displayed toward the front viewing angle and the left viewing angle, and the second sub-pixel 62 can be displayed toward the front viewing angle and the right viewing angle.

[0120] In this display mode, the content displayed by the first sub-pixel 61 is viewed from the left side, and the content displayed by the second sub-pixel 62 is viewed from the right side. The display content of the left side and the display content of the right side do not interfere with each other, so that dual-use of one screen can be achieved. In this display mode, users at the left side can view the first display content, and users at the right side can view the second display content. The first display screen and the second display screen can be different or different; for example, this mode can be used in a vehicle driving scene, and the display panel 100 facing the main driver's side can be used to display navigation information and vehicle-related information, and the display panel 100 facing the co-driver's side can display other content, so that the display panel 100 will not affect the main driver's driving of the vehicle, and can also be displayed according to the needs of the co-driver, so as to achieve dual-use of one screen.

[0121] In one embodiment, taking the example that the first preset electric field is formed when the voltage difference between the two electrodes is 5V and the second preset electric field is formed when the voltage difference between the two electrodes is 0V, the first side electrode 431 can be 0V, the sixth sub-electrode 53 can be 0V, the second side electrode 432 can be 0V, the bottom wall electrode 433 can be 0V, the third sub-electrode 42 can be 5V, and the fifth sub-electrode 52 can be 5V or (-5)V, so as to realize the above-mentioned double-sided or single-sided first side viewing angle display mode.

[0122] Please refer to Fig.30 and Fig.35a , Fig.35b , Fig.35a yes Fig.30 Another schematic diagram of the planar structure of the first electrode; Fig.35b yes Fig.30 In some embodiments, the third sub-electrode 42, the first side electrode 431, the second side electrode 432 and the bottom wall electrode 433 can be designed in blocks, and independent electrode connection lines are set to connect each electrode block.

[0123] Among them, the ends of several adjacent third sub-electrodes 42 located on the same side are electrically connected through the first connecting portion 441 to form a first functional electrode 461. The multiple first functional electrodes 461 are arranged in an array, and each first functional electrode 461 is electrically connected to the corresponding third touch connection line 85.

[0124] The ends of several adjacent first side electrodes 431 located on the same side are electrically connected through the first sub-connecting portion 451 to form a first side viewing electrode 462, and the multiple first side viewing electrodes 462 are arranged in an array, and each first side viewing electrode 462 is electrically connected to the corresponding first side connecting line 871; the ends of several adjacent second side electrodes 432 located on the same side are electrically connected through the second sub-connecting portion 453 to form a second side viewing electrode 463, and the multiple second side viewing electrodes 463 are arranged in an array, and each second side viewing electrode 463 is electrically connected to the corresponding second side connecting line 873; the ends of several adjacent bottom wall electrodes 433 located on the same side are electrically connected through the third sub-connecting portion 452 to form a bottom electrode 464, and the multiple bottom electrodes 464 are arranged in an array, and each bottom electrode 464 is electrically connected to the corresponding bottom electrode connecting line 872.

[0125] The ends of several adjacent fifth sub-electrodes 52 located on the same side are electrically connected through the third connecting portion to form a second functional electrode 541, and the multiple second functional electrodes 541 are arranged in an array, and each second functional electrode 541 is electrically connected to the corresponding fourth touch connection line 811; the ends of several adjacent sixth sub-electrodes 53 located on the same side are electrically connected through the fourth connecting portion to form a third functional electrode 542, and the multiple third functional electrodes 542 are arranged in an array, and each third functional electrode 542 is electrically connected to the corresponding fifth touch connection line 812.

[0126] In this embodiment, the anode 611 of the first sub-pixel 61 is located on the side of the light-emitting layer close to the first substrate 10, and the anode 611 of the second sub-pixel 62 is located on the side of the light-emitting layer close to the second substrate 20. Fig.30 It can be seen that, since the bottom wall electrode 433 is almost completely shielded by the anode 611 of the first sub-pixel 61, the bottom electrode 464 formed by the bottom wall electrode 433 can only be used as the control electrode of the second dimming layer, and cannot be used as a touch electrode, but can be reused as the cathode of the first sub-pixel 61. The area of ​​the touch plane corresponding to the first side electrode 431 and the second side electrode 432 is small. When used as touch electrodes, the induction amount is small, so they are not used as touch electrodes, but only as control electrodes of the first dimming layer. The first functional electrode 461 formed by the third sub-electrode 42 is not shielded by the anode 611 of the first sub-pixel 61, and can be used as the control electrode and touch electrode of the third dimming layer at the same time, so as to realize the touch function on the display surface on one side of the first substrate 10.

[0127] For the display surface on one side of the second substrate 20, the fifth sub-electrode 52 is not shielded by the anode 611 of the second sub-pixel 62, and can be used as the control electrode and touch electrode of the second dimming layer at the same time. Part of the sixth sub-electrode 53 is not shielded by the anode 611 of the second sub-pixel 62, and can be used as the control electrode of the first dimming layer and the third dimming layer, the cathode of the second sub-pixel 62, and the touch electrode at the same time. By multiplexing the fifth sub-electrode 52 and / or the sixth sub-electrode 53 as the touch electrode, the touch function can be realized on the display surface on one side of the second substrate 20. Through the above-mentioned setting method, the double-sided touch display of the display panel 100 can be realized.

[0128] It should be noted that when preparing the display panel 100, the present embodiment integrates and reuses the cathode, the touch electrode and the control electrode of the dimming structure 30, so the first electrode 40 and the second electrode 50 need to be disconnected at the corresponding positions for block processing, which can be specifically performed through a patterning process. At the same time, due to the introduction of the touch connection line, an insulating layer needs to be provided between the electrode block and the connection line corresponding to each electrode block, and the corresponding electrode blocks are connected through vias to avoid the situation where the connection line has no contact with other electrode blocks, which affects normal touch control.

[0129] Specifically, when the display panel 100 displays images frame by frame, each frame time includes a display stage T1 and a touch stage T2. In the display stage T1, the first functional electrode 461 serves as a control electrode of the third dimming layer, the first side viewing electrode 462 serves as a control electrode corresponding to the first dimming layer, the second side viewing electrode 463 serves as a control electrode corresponding to the first dimming layer, the bottom electrode 464 serves as a cathode of the first sub-pixel 61 and a control electrode of the second dimming layer, and the bottom electrode 464 outputs a cathode signal.

[0130] In the touch stage T2, the first functional electrode 461 serves as the third touch electrode for transmitting the third touch signal; the second functional electrode 541 serves as the fourth touch electrode for transmitting the fourth touch signal; and the first difference or the second difference is maintained between the third touch signal and the voltage signal of the sixth sub-electrode 53 to maintain the translucent state or the opaque state of the second dimming layer; the first difference or the second difference is maintained between the fourth touch signal and the voltage signal of the bottom wall electrode 433 to maintain the translucent state or the opaque state of the third dimming layer.

[0131] Through the above configuration and the reuse of the electrodes, the display panel 100 can realize the touch function while realizing the above display modes, without adding additional touch electrode blocks, thus realizing the reuse of electrodes and functional integration.

[0132] See also Fig.36 , Fig.36 yes Fig.30A schematic diagram of the light emission of the display panel in a hybrid display mode. Further, while realizing the touch function, in this embodiment, the display panel 100 has a first display area 101 and a second display area 102. In the first display area 101, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the first sub-pixel 61 and the second sub-pixel 62 jointly display the first picture. In the second display area 102, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in an opaque state, the first sub-pixel 61 displays the second picture toward the first substrate 10, and the second sub-pixel 62 displays the third picture toward the second substrate 20. The second picture and the third picture have the same content and are displayed in opposite directions.

[0133] It is easy to understand that due to the double-sided transparent display, when the display panel 100 displays text, the text content will be normal on one display surface and mirrored on the other display surface, which is not conducive to user reading. In this embodiment, the second dimming layer and the third dimming layer in the second display area 102 can be opaque through partitioned display, so that the display surface of the first sub-pixel 61 facing the side of the first substrate 10 displays normal text content, and the display surface of the second sub-pixel 62 facing the side of the second substrate 20 displays normal text content, and the first sub-pixel 61 and the second sub-pixel 62 do not affect the display on the opposite side, thereby solving the problem of mirrored text display. At the same time, in the first display area 101, the second dimming layer and the third dimming layer are in a transparent state, and a double-sided display is performed. The first sub-pixel 61 and the second sub-pixel 62 jointly participate in the display of the same frame to perform high-resolution display, thereby ensuring the fineness of the picture.

[0134] In some embodiments, in this display mode, the first dimming layer in the first display area 101 and / or the second display area 102 can be in a light-transmitting state or an opaque state, thereby meeting wide viewing angle or anti-peeping requirements, or meeting left and / or right viewing angle display requirements.

[0135] See also Fig.37 , Fig.37 yes Fig.30 A display schematic diagram of the display panel in a logo display mode. In some embodiments, the display panel 100 has a regular display area 107 and a logo display area 108, and the shape of the logo display area 108 is the same as the shape of the logo pattern. In the regular display area 107, the first dimming layer is in a light-transmitting state; in the logo display area 108, the first dimming layer is in an opaque state.

[0136] The logo display area 108 corresponds to the area of ​​the first dimming layer where the logo needs to be displayed, that is, the logo display area 108 has the same pattern shape as the logo to be displayed. Since the first side electrode 431, the second side electrode 432 and the bottom wall electrode 433 for controlling the first dimming layer are designed in a block manner, the state of the first dimming layer can be controlled in a block manner. Therefore, by controlling the block manner of the first dimming layer, the first dimming layer at a specific position can present some logo patterns.

[0137] In this embodiment, in the identification display area 108, the first dimming layer in this area can be put into an opaque state by controlling the voltage difference of the control electrode of the first dimming layer; in the conventional display area 107, the first dimming layer of the conventional display area 107 is put into a translucent state by controlling the voltage difference of the control electrode of the first dimming layer, that is, by forming a contrast between the states of the first dimming layer of the conventional display area 107 and the first dimming layer of the identification display area 108, the dark pattern identification function of the left and right viewing angles can be realized without affecting the normal picture display.

[0138] See also Fig.38 , Fig.38 yes Fig.30 A display schematic diagram of the display panel in another logo display mode. In some embodiments, the display panel 100 has a regular display area 107 and a logo display area 108, and the shape of the logo display area 108 is the same as the shape of the logo pattern. In the regular display area 107, the first dimming layer is in an opaque state; in the logo display area 108, the first dimming layer is in a translucent state.

[0139] and Fig.37 What is different from the embodiment in the above is that, in the present embodiment, in the identification display area 108, the first dimming layer is controlled to be in a light-transmitting state; in the conventional display area 107, the first dimming layer is controlled to be in an opaque state. Similarly, by forming a contrast between the states of the first dimming layer in the conventional display area 107 and the first dimming layer in the identification display area 108, the bright-line identification function of the left and right viewing angles can be realized without affecting the display of the normal picture.

[0140] See also Fig.39 , Fig.39 1 is a schematic diagram of a display device according to an embodiment of the present application. In this embodiment, a display device is provided, and the display device includes a display panel 100 and a control circuit board 200 .

[0141] Among them, the display panel 100 is the display panel 100 provided in the above embodiment, and can realize all the functions and technical effects of the display panel 100 in the above embodiment. For details, please refer to the above detailed description, which will not be repeated here.

[0142] The control circuit board 200 is electrically connected to the display panel 100 and is used to control the display panel 100 to display images in a corresponding display mode, so as to achieve the functions and technical effects involved in the above embodiments.

[0143] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: include: a first substrate; a second substrate, arranged opposite to the second substrate; A dimming structure, disposed between the first substrate and the second substrate; A plurality of first grooves are provided on a side of the dimming structure close to the first substrate, and a plurality of second grooves are provided on a side close to the second substrate; the first grooves and the second grooves are alternately arranged in a first direction and a second direction, and the first direction and the second direction are parallel to and intersect the dimming structure; A first electrode, disposed on a side of the dimming structure close to the first substrate; A second electrode is disposed on a side of the dimming structure close to the second substrate, and is used to form a preset electric field with the second electrode to control the light transmittance of the dimming structure; A first sub-pixel is disposed in the first groove; The second sub-pixel is disposed in the second groove.

2. The display panel according to claim 1, characterized in that: When the first electrode and the second electrode form a first preset electric field, the dimming structure is opaque, and the display panel is in a narrow viewing angle display mode; when the first sub-pixel and the second sub-pixel are turned on, the display panel is in a narrow viewing angle double-sided display mode; when the first sub-pixel or the second sub-pixel is turned on, the display panel is in a narrow viewing angle single-sided display mode; When the first electrode and the second electrode form a second preset electric field, the dimming structure is light-transmissive and the display panel is in a wide-viewing angle display mode; when the first sub-pixel and the second sub-pixel are turned on, the display panel is in a wide-viewing angle high-resolution display mode; when the first sub-pixel or the second sub-pixel is turned on, the display panel is in a wide-viewing angle low-resolution display mode.

3. The display panel according to claim 1, characterized in that: The first electrode includes a plurality of first sub-electrodes distributed in an array and insulated from each other; a first insulating layer is further provided between the first electrode and the first substrate, and a plurality of first via holes are further provided in the first insulating layer; a first touch connection line is provided between the first insulating layer and the first substrate, and the first touch connection line is electrically connected to the corresponding first sub-electrode through the first via hole, so as to transmit a first touch signal; The second electrode includes a plurality of second sub-electrodes distributed in an array and insulated from each other; a second insulating layer is further provided between the second electrode and the second substrate, and a plurality of second via holes are further provided in the second insulating layer; a second touch connection line is provided between the second insulating layer and the second substrate, and the second touch connection line is electrically connected to the corresponding second sub-electrode through the second via hole, so as to transmit a second touch signal; A first gap between two adjacent first sub-electrodes is located at the sidewall of the first groove, a second gap between two adjacent second sub-electrodes is located at the sidewall of the second groove, and the first gap and the second gap located on opposite sides of the same sidewall are staggered.

4. The display panel according to claim 3, characterized in that: Each frame includes a display phase and a touch phase; In the display stage, the first sub-electrode serves as the cathode of the first sub-pixel, and is used to transmit a first cathode signal; the second sub-electrode also serves as the cathode of the second sub-pixel, and is used to transmit a second cathode signal; and a first difference or a second difference is maintained between the first cathode signal and the second cathode signal, so as to maintain a light-transmitting state or a light-impermeable state of the dimming structure; In the touch stage, the first sub-electrode serves as a first touch electrode for transmitting a first touch signal; the second sub-electrode serves as a second touch electrode for transmitting a second touch signal; and a first difference or a second difference is maintained between the first touch signal and the second touch signal to maintain the light-transmitting state or the light-opaque state of the dimming structure.

5. The display panel according to claim 1 or 3, characterized in that: A first insulating layer, a first scanning touch electrode and a first data touch electrode, a second insulating layer, a first scanning line, a third insulating layer, and a first data line are sequentially stacked on a side of the first electrode close to the first substrate; wherein the first scanning touch electrodes and the first data touch electrodes are distributed in an array and insulated from each other, the first scanning touch electrodes in the same row are connected to the same first scanning line, and the first data touch electrodes in the same column are connected to the same first data line; A fourth insulating layer, a second scanning touch electrode, a second data touch electrode, a fifth insulating layer, a second scanning line, a sixth insulating layer, and a second data line are sequentially stacked on one side of the second electrode close to the second substrate; wherein the second scanning touch electrodes and the second data touch electrodes are distributed in an array and insulated from each other, the second scanning touch electrodes in the same row are connected to the same second scanning line, and the second data touch electrodes in the same column are connected to the same second data line.

6. The display panel according to claim 1, characterized in that: The dimming structure comprises a first dimming layer, a second dimming layer and a third dimming layer; the side wall of the first groove and the second groove adjacent to each other is the first dimming layer, the bottom wall of the first groove close to the second substrate is the second dimming layer, and the bottom wall of the second groove close to the first substrate is the third dimming layer; the dimming structure has an opaque state and a translucent state; Under the same preset electric field, the second dimming layer and the third dimming layer have light transmittance states opposite to that of the first dimming layer.

7. The display panel according to claim 6, characterized in that: When the first electrode and the second electrode form a second preset electric field, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in a light-opaque state, and the display panel is in a first wide-viewing angle display mode; When the first electrode and the second electrode form a first preset electric field, the first dimming layer is in an opaque state, the second dimming layer and the third dimming layer are in a translucent state, and the display panel is in a first narrow viewing angle display mode.

8. The display panel according to claim 6, characterized in that ； The first electrode includes a third sub-electrode and a fourth sub-electrode which are insulated from each other, the third sub-electrode is arranged on a side surface of the third dimming layer close to the first substrate; the fourth sub-electrode is arranged on a groove wall surface of the first groove and a side surface of the adjacent first dimming layer close to the first substrate; The second electrode includes a fifth sub-electrode and a sixth sub-electrode insulated from each other, the fifth sub-electrode being arranged on a surface of the second dimming layer on one side close to the second substrate; the sixth sub-electrode being arranged on a groove wall surface of the second groove and a surface of the adjacent first dimming layer on one side close to the second substrate.

9. The display panel according to claim 8, characterized in that: The ends of the third sub-electrodes located on the same side are electrically connected via the first connection portion, the ends of the fourth sub-electrodes located on the same side are electrically connected via the second connection portion, the ends of the fifth sub-electrodes located on the same side are electrically connected via the third connection portion, and the ends of the sixth sub-electrodes located on the same side are electrically connected via the fourth connection portion; wherein, When the third sub-electrode and the sixth sub-electrode form a first preset electric field, the fourth sub-electrode and the fifth sub-electrode form a first preset electric field, and the fourth sub-electrode and the sixth sub-electrode form a second preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the display panel is in a second wide-viewing angle display mode; When the third sub-electrode and the sixth sub-electrode form a second preset electric field, the fourth sub-electrode and the fifth sub-electrode form a second preset electric field, and the fourth sub-electrode and the sixth sub-electrode form a first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer are in an opaque state, and the display panel is in a second narrow viewing angle display mode.

10. The display panel according to claim 8, characterized in that: The fourth sub-electrode includes a first side electrode, a bottom wall electrode and a second side electrode, the first side electrode is arranged on one side wall surface of the first groove, the second side electrode is arranged on the other side wall surface of the first groove, and the bottom wall electrode is arranged on the bottom wall surface of the first groove.

11. The display panel according to claim 10, characterized in that: The ends of the third sub-electrodes located on the same side are electrically connected via the first connecting portion; the ends of the first side electrodes located on the same side are electrically connected via the first sub-connecting portion, the ends of the second side electrodes located on the same side are electrically connected via the second sub-connecting portion, and the ends of the bottom wall electrodes located on the same side are electrically connected via the third sub-connecting portion; the ends of the fifth sub-electrodes located on the same side are electrically connected via the third connecting portion, and the ends of the sixth sub-electrodes located on the same side are electrically connected via the fourth connecting portion; The first side electrode and the sixth sub-electrode form a second preset electric field, the bottom wall electrode and the fifth sub-electrode form a second preset electric field, the third sub-electrode and the sixth sub-electrode form a second preset electric field, and when the second side electrode and the sixth sub-electrode form the first preset electric field, the first dimming layer, the second dimming layer and the third dimming layer provided with the second side electrode are in an opaque state, the first dimming layer provided with the first side electrode is in a transparent state, and the display panel is in a double-sided first side viewing angle display mode; The first side electrode and the sixth sub-electrode form a first preset electric field, the bottom wall electrode and the fifth sub-electrode form a second preset electric field, the third sub-electrode and the sixth sub-electrode form a second preset electric field, and when the second side electrode and the sixth sub-electrode form the second preset electric field, the first dimming layer, the second dimming layer, and the third dimming layer provided with the first side electrode are in an opaque state, the first dimming layer provided with the second side electrode is in a transparent state, and the display panel is in a double-sided second side viewing angle display mode; The third sub-electrode and the sixth sub-electrode form a first preset electric field, the first side electrode and the sixth sub-electrode form a second preset electric field, the bottom wall electrode and the fifth sub-electrode form a first preset electric field, the second side electrode and the sixth sub-electrode form a first preset electric field, the second dimming layer, the first dimming layer provided with the first side electrode, and the third dimming layer are in a light-transmitting state, the first dimming layer provided with the second side electrode is in an opaque state, and the display panel is in a double-sided and double-side viewing angle display mode.

12. The display panel according to claim 10, characterized in that: Ends of a plurality of adjacent third sub-electrodes located on the same side are electrically connected through a first connecting portion to form a first functional electrode, and a plurality of the first functional electrodes are arranged in an array, and each of the first functional electrodes is electrically connected to a corresponding third touch connection line; Ends of a plurality of adjacent first side electrodes located on the same side are electrically connected through a first sub-connection portion to form a first side viewing electrode, a plurality of the first side viewing electrodes are arranged in an array, and each of the first side viewing electrodes is electrically connected to a corresponding first side connecting line; ends of a plurality of adjacent second side electrodes located on the same side are electrically connected through a second sub-connection portion to form a second side viewing electrode, a plurality of the second side viewing electrodes are arranged in an array, and each of the second side viewing electrodes is electrically connected to a corresponding second side connecting line; ends of a plurality of adjacent bottom wall electrodes located on the same side are electrically connected through a third sub-connection portion to form a bottom electrode, a plurality of the bottom electrodes are arranged in an array, and each of the bottom electrodes is electrically connected to a corresponding bottom electrode connecting line; Ends of a plurality of adjacent fifth sub-electrodes located on the same side are electrically connected through a third connection portion to form a second functional electrode, a plurality of the second functional electrodes are arranged in an array, and each of the second functional electrodes is electrically connected to a corresponding fourth touch connection line; ends of a plurality of adjacent sixth sub-electrodes located on the same side are electrically connected through a fourth connection portion to form a third functional electrode, a plurality of the third functional electrodes are arranged in an array, and each of the third functional electrodes is electrically connected to a corresponding fifth touch connection line; Each frame includes a display phase and a touch phase; Among them, in the touch stage, the first functional electrode serves as the third touch electrode for transmitting a third touch signal; the second functional electrode serves as the fourth touch electrode for transmitting a fourth touch signal; and the third touch signal and the voltage signal of the sixth sub-electrode maintain a first difference or a second difference to maintain the translucent state or the opaque state of the second dimming layer; the fourth touch signal and the voltage signal of the bottom wall electrode maintain a first difference or a second difference to maintain the translucent state or the opaque state of the third dimming layer.

13. The display panel according to claim 12, characterized in that: The display panel has a first display area and a second display area; In the first display area, the first dimming layer, the second dimming layer and the third dimming layer are all in a light-transmitting state, and the first sub-pixel and the second sub-pixel jointly display a first picture; In the second display area, the first dimming layer is in a light-transmitting state, the second dimming layer and the third dimming layer are in an opaque state, the first sub-pixel displays a second picture toward the first substrate, and the second sub-pixel displays a third picture toward the second substrate, and the second picture has the same content as the third picture and is displayed in opposite directions.

14. The display panel according to claim 12, characterized in that: The display panel has a conventional display area and a logo display area, and the shape of the logo display area is the same as the shape of the logo pattern; In the conventional display area, the first dimming layer is in a light-transmitting state; in the logo display area, the first dimming layer is in a light-opaque state; or, In the conventional display area, the first dimming layer is in an opaque state; in the logo display area, the first dimming layer is in a translucent state.

15. A display device, characterized in that: include: The display panel is a display panel as claimed in any one of claims 1 to 14; The control circuit board is electrically connected to the display panel and is used to control the display panel to display images in a corresponding display mode.

Images