Display panel and display terminal

Abstract

This application discloses a display panel and a display terminal. The display panel includes pixel electrodes disposed on a first substrate and a common electrode disposed on a second substrate. The pixel electrodes include a plurality of spaced first branch electrodes, and the common electrode includes a plurality of spaced second branch electrodes. An auxiliary electrode is disposed between the pixel electrodes and the first substrate, and / or, between the common electrode and the second substrate. The orthographic projections of the first branch electrodes and the second branch electrodes onto the auxiliary electrode are both located within the auxiliary electrode. By providing an auxiliary electrode, and ensuring that the orthographic projections of the first branch electrodes and the second branch electrodes are both located within the auxiliary electrode, the auxiliary electrode can form an additional electric field with the opposing first branch electrode or second branch electrode. This additional electric field can be superimposed on the electric field formed between the pixel electrodes and the common electrode, thereby enhancing the electric field of the liquid crystal layer and thus improving the response speed of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and a display terminal. Background Technology

[0002] Liquid crystal display (LCD) panels have advantages such as high resolution, small size, and light weight, and are widely used in the display technology field. LCD panels control the deflection of liquid crystal molecules through an electric field, thereby controlling the brightness of the displayed image. The reaction speed of the liquid crystal molecules determines the response speed of the LCD panel. When the response speed is slow, a "ghosting" phenomenon occurs, affecting the display effect.

[0003] Therefore, it is urgent to solve the above-mentioned technical problems. Summary of the Invention

[0004] This application provides a display panel and a display terminal to improve the technical problem of slow response speed of liquid crystal display panels.

[0005] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows:

[0006] This application provides a display panel, the display panel comprising:

[0007] First substrate;

[0008] The second substrate is positioned opposite the first substrate at a distance;

[0009] Multiple pixel electrodes are disposed on the side of the first substrate facing the second substrate, and the pixel electrodes include multiple spaced first branch electrodes;

[0010] A common electrode is disposed on the side of the second substrate facing the first substrate, and the common electrode includes a plurality of spaced second branch electrodes;

[0011] A liquid crystal layer is disposed between a first substrate and a second substrate; and

[0012] An auxiliary electrode is disposed between the pixel electrode and the first substrate, and / or between the common electrode and the second substrate;

[0013] The orthographic projection of the first branch electrode on the second substrate at least covers the adjacent edge lines of two adjacent second branch electrodes, and the orthographic projections of the first branch electrode and the second branch electrode on the auxiliary electrode are both located within the auxiliary electrode.

[0014] In the display panel of this application, the auxiliary electrode includes a plurality of first electrode portions disposed on the first substrate, and the first electrode portions are disposed between the pixel electrode and the first substrate, with one first electrode portion corresponding to and electrically connected to one pixel electrode.

[0015] In the display panel of this application, a first insulating layer is provided between the first electrode portion and the pixel electrode, and the first electrode portion and the pixel electrode are electrically connected through a first electrical connection post; or, the first electrode portion is in contact with the pixel electrode and the first insulating layer is provided on the side of the first electrode portion away from the pixel electrode.

[0016] In the display panel of this application, the auxiliary electrode includes a second electrode portion disposed on a second substrate, and the second electrode portion is disposed between a common electrode and the second substrate, and the second electrode portion is electrically connected to the common electrode.

[0017] In the display panel of this application, the auxiliary electrode includes at least one second electrode portion, and a second insulating layer is provided between the second electrode portion and the common electrode, or the second electrode portion is in contact with the common electrode.

[0018] In the display panel of this application, the pixel electrode includes a first main electrode connected to a plurality of first branch electrodes. The first main electrode includes a first wide portion and a first narrow portion. The first wide portion and the first narrow portion are alternately connected and disposed along a first direction. The width of the first wide portion is greater than the width of the first narrow portion.

[0019] The common electrode includes a second main electrode connected to a plurality of second branch electrodes. The second main electrode is provided with a plurality of first openings, which are arranged at intervals along a first direction.

[0020] At least a portion of the orthogonal projection of the first narrow portion onto the common electrode lies within the first opening.

[0021] In the display panel of this application, the first narrow portion includes a first sub-segment and a second sub-segment. In a first direction, one end of the first sub-segment is connected to a first wide portion, the other end of the first sub-segment is connected to the second sub-segment, and the other end of the second sub-segment is connected to another first wide portion.

[0022] In the direction from the side where the first sub-segment is connected to the first wide portion to the side where the first sub-segment is connected to the second sub-segment, the width of the first sub-segment decreases, and in the direction from the side where the second sub-segment is connected to the first wide portion to the side where the second sub-segment is connected to the first sub-segment, the width of the second sub-segment decreases.

[0023] In the display panel of this application, the width of the first branch electrode and the width of the second branch electrode are the same, and the spacing between two adjacent first branch electrodes and the spacing between two adjacent second branch electrodes are the same.

[0024] In the display panel of this application, within a sub-pixel of the display panel, the pixel electrode includes a first peripheral electrode extending along a first direction, and a plurality of first branch electrodes connected to the first peripheral electrode; the common electrode includes a second peripheral electrode extending along the first direction, and a plurality of second branch electrodes connected to the second peripheral electrode, wherein the orthographic projection of the second peripheral electrode on the pixel electrode at least partially overlaps with the first peripheral electrode.

[0025] This application also provides a display terminal, which includes the display panel described above.

[0026] Beneficial Effects: This application discloses a display panel and a display terminal. The display panel includes a first substrate, a second substrate, pixel electrodes, a common electrode, a liquid crystal layer, and an auxiliary electrode. The second substrate and the first substrate are spaced apart and opposite each other. A plurality of pixel electrodes are disposed on the side of the first substrate facing the second substrate, and each pixel electrode includes a plurality of spaced first branch electrodes. The common electrode is disposed on the side of the second substrate facing the first substrate, and the common electrode includes a plurality of spaced second branch electrodes. The liquid crystal layer is disposed between the first substrate and the second substrate. The auxiliary electrode is disposed between the pixel electrodes and the first substrate, and / or between the common electrode and the second substrate. The orthographic projection of the first branch electrode on the second substrate at least covers the adjacent edge lines of two adjacent second branch electrodes. The orthographic projections of the first branch electrode and the second branch electrode on the auxiliary electrode are both located within the auxiliary electrode. This application, by using an auxiliary electrode between the pixel electrode and the first substrate, and / or between the common electrode and the second substrate, and with the orthographic projections of the first branch electrode and the second branch electrode both located within the auxiliary electrode, allows the auxiliary electrode to form an additional electric field with the opposite first branch electrode or second branch electrode. This additional electric field can be superimposed on the electric field formed between the pixel electrode and the common electrode, thereby enhancing the electric field of the liquid crystal layer. Increasing the electric field strength can improve the reaction speed of liquid crystal molecules, thereby enhancing the response speed of the display panel. Attached Figure Description

[0027] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0028] Figure 1 A top view of a display panel provided for an embodiment of this application;

[0029] Figure 2 for Figure 1 A magnified view of the local structure of a sub-pixel;

[0030] Figure 3a for Figure 2 A schematic diagram of the partial decomposed structure of the membrane layer;

[0031] Figure 3b for Figure 2 A schematic diagram of the decomposed structure of another part of the membrane layer;

[0032] Figure 4 for Figure 2 A magnified cross-sectional view of the first seed pixel at point AA;

[0033] Figure 5 for Figure 2 A magnified cross-sectional view of the second seed pixel at position AA;

[0034] Figure 6 for Figure 2 A magnified cross-sectional view of the third seed pixel at point AA;

[0035] Figure 7 for Figure 2 A magnified cross-sectional view of the fourth seed pixel at point AA;

[0036] Figure 8 for Figure 2 A magnified cross-sectional view of the fifth seed pixel at point AA.

[0037] Explanation of reference numerals in the attached figures:

[0038] First substrate 10, pixel electrode 30, first branch electrode 31, first main electrode 32, first wide portion 321, first narrow portion 322, first sub-segment 3221, second sub-segment 3222, first peripheral electrode 33, width L1 of the first branch electrode, spacing S1 between two adjacent first branch electrodes, third main electrode 34, second substrate 20, common electrode 40, second branch electrode 41, second main electrode 42, first opening 421, second peripheral electrode 43, width L2 of the second branch electrode, spacing S2 between two adjacent second branch electrodes, fourth main electrode 44, liquid crystal layer 50, auxiliary electrode 60, first electrode portion 61, second electrode portion 62, first insulating layer 71, second insulating layer 72, first direction D1, second direction D2, sub-pixel 80, array layer 81, color resist layer 82, display area AA, non-display area NA, connecting trace 35, first electrical connection post 90. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or working state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0040] This application provides a display panel, such as Figures 1 to 8 As shown, the display panel includes a first substrate 10, a second substrate 20, pixel electrodes 30, a common electrode 40, a liquid crystal layer 50, and an auxiliary electrode 60. The second substrate 20 is spaced apart from the first substrate 10. A plurality of pixel electrodes 30 are disposed on the side of the first substrate 10 facing the second substrate 20, and each pixel electrode 30 includes a plurality of spaced first branch electrodes 31. The common electrode 40 is disposed on the side of the second substrate 20 facing the first substrate 10, and each common electrode 40 includes a plurality of spaced second branch electrodes 41. The liquid crystal layer 50 is disposed between the first substrate 10 and the second substrate 20. The auxiliary electrode 60 is disposed between the pixel electrodes 30 and the first substrate 10, and / or between the common electrode 40 and the second substrate 20. The orthographic projection of the first branch electrode 31 on the second substrate 20 at least covers the adjacent edge lines of two adjacent second branch electrodes 41. The orthographic projections of the first branch electrode 31 and the second branch electrode 41 on the auxiliary electrode 60 are both located within the auxiliary electrode 60.

[0041] In this embodiment, the display panel is a liquid crystal display panel or the like. The display panel includes a plurality of sub-pixels 80, which can be red sub-pixels, green sub-pixels, blue sub-pixels, but are not limited to these.

[0042] In this embodiment, the display panel further includes a color resist layer 82, which includes red, green, and blue color resists. The color resist layer 82 is used to enable the display panel to display in color. The color resist layer 82 can be disposed on the first substrate 10 or the second substrate 20. When the color resist layer 82 is disposed on the second substrate 20, it can be in the form of COA (CF on Array, where the color resist is located on an array substrate). However, it is not limited to this.

[0043] In this embodiment, the first substrate 10 and the second substrate 20 can be glass substrates, but are not limited thereto. The first substrate 10 and the second substrate 20 are disposed opposite to each other and spaced apart. A liquid crystal layer 50 is disposed between the first substrate 10 and the second substrate 20.

[0044] In this embodiment, a pixel electrode 30 is provided on the side of the first substrate 10 facing the second substrate 20. One pixel electrode 30 corresponds to one sub-pixel 80, and the pixel electrodes 30 of multiple sub-pixels 80 are insulated from each other. An array layer 81 is also provided between the pixel electrode 30 and the first substrate 10. The array layer 81 includes a pixel driving circuit, which includes multiple thin-film transistors, etc. The source and drain layers of the thin-film transistors are connected to the pixel electrode 30. The pixel driving circuit is used to control the driving voltage of the pixel electrode 30 of each sub-pixel 80.

[0045] A common electrode 40 is disposed on the side of the second substrate 20 facing the first substrate 10. A common voltage can be applied to the common electrode 40. An electric field is formed between the driving voltage and the common voltage. The electric field can control the deflection of liquid crystal molecules in the liquid crystal layer 50, thereby controlling the brightness of the displayed image.

[0046] The display panel includes a display area AA and a non-display area NA located around the display area AA. The non-display area NA may be provided with at least one common voltage input terminal, through which a common voltage can be input. The common voltage input terminal may be located on the first substrate 10 and input to the common electrode 40 located on the second substrate 20 via conductive gold balls or the like, but is not limited thereto. The common electrodes 40 of the display panel are electrically connected to each other, thereby allowing a common voltage to be input to all sub-pixels 80 through the common voltage input terminal.

[0047] It should be noted that the pixel electrode 30 and the common electrode 40 are patterned electrodes. The pixel electrode 30 may include a plurality of spaced first branch electrodes 31, and the common electrode 40 may include a plurality of spaced second branch electrodes 41.

[0048] The orthographic projection of the first branch electrode 31 onto the second substrate 20 at least covers the adjacent edge lines of two adjacent second branch electrodes 41. This means that in the orthographic projection pattern of the display panel on the display surface, the first branch electrode 31 at least covers the gap between two adjacent second branch electrodes 41, and the first branch electrode 31 at least covers the adjacent edge lines of these two adjacent second branch electrodes 41. In other words, at least one first branch electrode 31 and the second branch electrode 41 are misaligned and their edges overlap. Through this arrangement, an oblique electric field can be formed between a portion of the first branch electrode 31 and the second branch electrode 41.

[0049] It should be understood that, under otherwise unchanged conditions, when the first branch electrode 31 and the second branch electrode 41 are aligned, a perpendicular electric field is formed between them. "Apparently aligned" refers to the overlapping area of ​​the orthographic projections of the first and second branches on the display surface of the display panel. Since the intensity of the oblique electric field is greater than that of the perpendicular electric field, misaligning the first branch electrode 31 and the second branch electrode 41 with overlapping edges can enhance the intensity of the electric field. Increased electric field intensity can improve the reaction speed of the liquid crystal molecules, thereby improving the response speed of the display panel.

[0050] In some embodiments, the auxiliary electrode 60 may be disposed between the pixel electrode 30 and the first substrate 10.

[0051] In some embodiments, the auxiliary electrode 60 may be disposed between the common electrode 40 and the second substrate 20.

[0052] In some embodiments, the auxiliary electrode 60 may be disposed simultaneously between the pixel electrode 30 and the first substrate 10, and between the common electrode 40 and the second substrate 20.

[0053] It should be understood that in all embodiments of this application, the auxiliary electrode 60, pixel electrode 30, and common electrode 40 are all made of transparent conductive materials, thus not affecting the transmission of light. The transparent conductive materials can be ITO (indium tin oxide), IZO (indium zinc oxide), IZTO (indium zinc tin oxide), IAZO (indium aluminum zinc oxide), IGZO (indium gallium zinc oxide), IGTO (indium gallium tin oxide), AZO (aluminum zinc oxide), ATO (antimony tin oxide), IGZTO (indium gallium zinc tin oxide), etc., but are not limited to these.

[0054] When the auxiliary electrode 60 is located between the pixel electrode 30 and the first substrate 10, the auxiliary electrode 60 can be input with the same driving voltage as the pixel electrode 30.

[0055] When the auxiliary electrode 60 is located between the common electrode 40 and the second substrate 20, the auxiliary electrode 60 can be input with the same common voltage as the common electrode 40.

[0056] When the auxiliary electrode 60 is simultaneously disposed between the pixel electrode 30 and the first substrate 10 and between the common electrode 40 and the second substrate 20, the auxiliary electrode 60 located between the pixel electrode 30 and the first substrate 10 can be input with the same driving voltage as the pixel electrode 30, and the auxiliary electrode 60 located between the common electrode 40 and the second substrate 20 can be input with the same common voltage as the common electrode 40.

[0057] By setting an auxiliary electrode 60, the orthogonal projections of the first branch electrode 31 and the second branch electrode 41 onto the auxiliary electrode 60 are both located within the auxiliary electrode 60. The auxiliary electrode 60 can form an additional electric field with the opposing first branch electrode 31 or second branch electrode 41. This additional electric field can be superimposed on the oblique electric field formed between the pixel electrode 30 and the common electrode 40, thereby enhancing the electric field of the liquid crystal layer 50. Increased electric field strength can improve the reaction speed of liquid crystal molecules, thus improving the response speed of the display panel.

[0058] It should be understood that, depending on the voltage requirements of the auxiliary electrode 60, the auxiliary electrode 60 can be configured as a patterned electrode or an electrode covering an entire layer. That is, when the auxiliary electrode 60 is used to input a driving voltage, one auxiliary electrode 60 can be configured to correspond to one sub-pixel 80; when the auxiliary electrode 60 is used to input a common voltage, the auxiliary electrode 60 can be configured as an entire layer or as a patterned electrode. When the auxiliary electrode 60 is configured as an entire layer, a photomask can be saved.

[0059] Furthermore, in the auxiliary electrode 60 corresponding to a sub-pixel 80, the auxiliary electrode 60 can also be patterned. That is to say, the auxiliary electrode 60 can also include multiple auxiliary branch electrodes arranged at intervals, and the auxiliary branch electrodes can form an additional vertical electric field with the first branch electrode 31 or the second branch electrode 41 that are directly opposite each other.

[0060] In the display panel of this application, as Figures 2 to 4 As shown, the auxiliary electrode 60 includes a plurality of first electrode portions 61 disposed on the first substrate 10, and the first electrode portions 61 are disposed between the pixel electrode 30 and the first substrate 10. Each first electrode portion 61 corresponds to and is electrically connected to a pixel electrode 30.

[0061] In this embodiment, the first electrode portion 61 is disposed between the pixel electrode 30 and the first substrate 10, and the orthographic projections of the first branch electrode 31 and the second branch electrode 41 onto the first electrode portion 61 are located within the first electrode portion 61. It is understood that one first electrode portion 61 corresponds to one sub-pixel 80, and the first electrode portion 61 and the pixel electrode 30 of the corresponding sub-pixel 80 receive the same driving voltage. Since the portion of the first electrode portion 61 located between two adjacent first branch electrodes 31 is directly opposite the second branch electrode 41, the directly opposite first electrode portion 61 and the second branch electrode 41 can form a vertical additional electric field, thereby compensating for the electric field loss at the gap between two adjacent first branch electrodes 31 caused by their spacing, and enhancing the electric field strength.

[0062] Furthermore, in this embodiment, as Figure 4 and Figure 5As shown, a first insulating layer 71 is provided between the first electrode portion 61 and the pixel electrode 30, and the first electrode portion 61 and the pixel electrode 30 are electrically connected through a first electrical connection post 90; or, the first electrode portion 61 is in contact with the pixel electrode 30 and the first insulating layer 71 is provided on the side of the first electrode portion 61 away from the pixel electrode 30.

[0063] In this embodiment, the first insulating layer 71 can be an organic insulating layer. The material of the first insulating layer 71 can be selected from acrylic resin, epoxy resin, and perfluoroalkoxy resin, but is not limited thereto. The first insulating layer 71 can serve as an insulating layer and can also act as a planarization layer. The first insulating layer 71 has a flat upper surface, which is utilized in the fabrication of subsequent film layers.

[0064] In some embodiments, such as Figure 4 As shown, Figure 4 This is an enlarged cross-sectional view of the first seed pixel 80 at point AA. The first electrode portion 61 corresponds to and is electrically connected to a pixel electrode 30. The first electrode portion 61 and the pixel electrode 30 can be electrically connected via a first electrical connection post 90. The first electrical connection post 90 can be disposed within the sub-pixel 80. To avoid interference with the electric field caused by the first electrical connection post 90, the orthographic projection of the first electrical connection post 90 on the display surface is designed not to overlap with the orthographic projection of the pixel electrode 30 on the display surface. The pixel electrode 30 and the first electrical connection post 90 can be connected via a connecting trace 35, which is disposed on the same layer as the pixel electrode 30 and connected thereto. In other words, the first electrical connection post 90 penetrates the first insulating layer 71, with one end connected to the connecting trace 35 and the other end connected to the first electrode portion 61.

[0065] In some embodiments, such as Figure 5 As shown, Figure 5This is an enlarged cross-sectional view of the second seed pixel 80. The second seed pixel 80 differs from the first seed pixel 80 in that the first electrode portion 61 is in contact with the pixel electrode 30, and a first insulating layer 71 is provided on the side of the first electrode portion 61 facing away from the pixel electrode 30. This means that no other film layer needs to be provided between the first electrode portion 61 and the pixel electrode 30; the first insulating layer 71 is placed below the first electrode portion 61. The first electrode portion 61 and the pixel electrode 30 can be formed through two processes. First, the first electrode portion 61 is formed. The first electrode portion 61 is a block electrode corresponding to the sub-pixel 80, and no patterned structure is provided on the block electrode. Then, a patterned pixel electrode 30 is formed on the first electrode portion 61. Optionally, in some embodiments, the first electrode portion 61 and the pixel electrode 30 can be fabricated using a half-tone mask process. This means that the first electrode portion 61 and the pixel electrode 30 can be fabricated using the same material and the same photomask. The first electrode portion 61 is connected to two adjacent first branch electrodes 31, and the thickness of the first electrode portion 61 is less than the thickness of the first branch electrodes 31. Therefore, the first electrode portion 61 and the pixel electrode 30 can be formed simultaneously in a single patterning process. This configuration simplifies the manufacturing process of the display panel without increasing the cost of the photomask.

[0066] In the display panel of this application, as Figure 6 and Figure 8 As shown, the auxiliary electrode 60 includes a second electrode portion 62 disposed on the second substrate 20, and the second electrode portion 62 is disposed between the common electrode 40 and the second substrate 20, and the second electrode portion 62 is electrically connected to the common electrode 40.

[0067] In this embodiment, the second electrode portion 62 is disposed between the common electrode 40 and the second substrate 20, and the orthographic projections of the first branch electrode 31 and the second branch electrode 41 onto the second electrode portion 62 are located within the second electrode portion 62. It is understood that the second electrode portion 62 can be disposed corresponding to the sub-pixel 80 or disposed across the entire layer, and the second electrode portion 62 receives the same common voltage as the common electrode 40. Since the portion of the second electrode portion 62 located between two adjacent second branch electrodes 41 is directly opposite the first branch electrode 31, the directly opposite second electrode portion 62 and the first branch electrode 31 can form a vertical additional electric field, thereby compensating for the electric field loss at the gap between adjacent second branch electrodes 41 caused by their spaced arrangement, and enhancing the electric field strength.

[0068] Furthermore, in the display panel of this application, the second electrode portion 62 is disposed in contact with the common electrode 40.

[0069] In this embodiment, the second insulating layer 72 can be a passivation layer, and the material of the second insulating layer 72 can be silicon nitride, silicon carbide nitride, silicon oxide, etc., but is not limited to these.

[0070] In some embodiments, the second electrode portion 62 can be provided as an entire layer, and the second electrode portion 62 corresponds to a plurality of sub-pixels 80.

[0071] In some embodiments, such as Figure 6 As shown, Figure 6 This is an enlarged cross-sectional view of the third seed pixel 80. The second electrode portion 62 is a single layer, and a second insulating layer 72 is provided between the second electrode portion 62 and the common electrode 40.

[0072] Optionally, in some embodiments, the second electrode portion 62 can be patterned. For example, the second electrode portion 62 can be a block electrode disposed corresponding to the sub-pixel 80. Multiple block electrodes are connected by traces to input the same common voltage.

[0073] In some embodiments, such as Figure 7 As shown, Figure 6 This is an enlarged cross-sectional view of the fourth seed pixel 80. The difference between the fourth seed pixel 80 and the third seed pixel 80 is that the second electrode portion 62 is in contact with the common electrode 40, meaning that no other film layer needs to be provided between the second electrode portion 62 and the common electrode 40. With this arrangement, the second insulating layer 72 can be omitted, thereby simplifying the manufacturing process of the display panel.

[0074] Furthermore, the second electrode 62 and the common electrode 40 can be fabricated using a half-tone mask process on the same photomask, which can further simplify the manufacturing process of the display panel without increasing the manufacturing cost of the photomask.

[0075] Optionally, in some embodiments, such as Figure 8 As shown, Figure 8 This is an enlarged cross-sectional view of the fifth seed pixel 80. The difference between the fifth seed pixel 80 and the first seed pixel 80 is that the fifth seed pixel 80 also includes a second electrode portion 62. In the fifth seed pixel 80, the auxiliary electrode 60 includes a first electrode portion 61 and a second electrode portion 62. The arrangement of the first electrode portion 61 and the second electrode portion 62 is the same as in the embodiment described above, and will not be repeated here. By simultaneously providing the first electrode portion 61 and the second electrode portion 62, it is possible to compensate for both the electric field loss at the gap between adjacent first branch electrodes 31 caused by their spacing and the electric field loss at the gap between adjacent second branch electrodes 41 caused by their spacing, thereby further enhancing the electric field strength.

[0076] Please refer to the display panel of this application. Figure 2 , Figure 3a , Figure 3b ,in, Figure 2 for Figure 1 A magnified schematic diagram of a sub-pixel 80 shows the orthographic projection patterns of the common electrode 40 and the pixel electrode 30 on the display surface. Figure 3a for Figure 2 The orthographic projection pattern of the film layer of the pixel electrode 30 on the display surface. Figure 3b for Figure 2 The orthographic projection pattern of the film layer of the common electrode 40 on the display surface.

[0077] like Figure 3a As shown, the pixel electrode 30 includes a first main electrode 32 connected to a plurality of first branch electrodes 31. The first main electrode 32 includes a first wide portion 321 and a first narrow portion 322, which are alternately connected along a first direction D1. The width of the first wide portion 321 is greater than the width of the first narrow portion 322. The common electrode 40 includes a second main electrode 42 connected to a plurality of second branch electrodes 41. The second main electrode 42 is provided with a plurality of first openings 421, which are arranged at intervals along the first direction D1. At least a portion of the orthographic projection of the first narrow portion 322 onto the common electrode 40 is located within the first opening 421.

[0078] In this embodiment, multiple first branch electrodes 31 are all connected to the first main electrode 32. The driving voltage of the pixel electrode 30 is transmitted to the multiple first branch electrodes 31 through the first main electrode 32, thereby giving the multiple first branch electrodes 31 a uniform driving voltage.

[0079] The first main electrode 32 includes a first wide portion 321 and a first narrow portion 322 alternately connected along a first direction D1. In a direction perpendicular to the first direction D1, the width of the first wide portion is greater than the width of the first narrow portion 322. That is to say, the first main electrode 32 has at least two alternating widths.

[0080] like Figure 3b As shown, the common electrode 40 includes a second main electrode 42, and a plurality of second branch electrodes 41 are externally connected to the second main electrode 42. The common voltage of the common electrode 40 is transmitted to the plurality of second branch electrodes 41 through the second main electrode 42, thereby giving the plurality of second branch electrodes 41 a consistent common voltage.

[0081] The second main electrode 42 is provided with a plurality of first openings 421, which are spaced apart along a first direction D1 and are provided corresponding to the first narrow portion 322. The orthogonal projection of the first narrow portion 322 onto the common electrode 40 is at least partially located within the first openings 421. With the above arrangement, the first main electrode 32 and the second main electrode 42 can be at least partially misaligned, thereby forming an oblique electric field between the first main electrode 32 and the second main electrode 42, thereby enhancing the electric field of the liquid crystal layer 50.

[0082] Furthermore, such as Figure 3a As shown, in the display panel of this application, the first narrow portion 322 includes a first sub-segment 3221 and a second sub-segment 3222. In the first direction D1, one end of the first sub-segment 3221 is connected to a first wide portion 321, the other end of the first sub-segment 3221 is connected to the second sub-segment 3222, and the other end of the second sub-segment 3222 is connected to another first wide portion 321. The width of the first sub-segment 3221 decreases from the side where the first sub-segment 3221 is connected to the first wide portion 321 to the side where the first sub-segment 3221 is connected to the second sub-segment 3222. Similarly, the width of the second sub-segment 3222 decreases from the side where the second sub-segment 3222 is connected to the first wide portion 321 to the side where the second sub-segment 3222 is connected to the first sub-segment 3221.

[0083] In this embodiment, the first narrow portion 322 includes a connected first sub-segment 3221 and a second sub-segment 3222. In the direction in which the first sub-segment 3221 and the second sub-segment 3222 approach each other, the width of the first sub-segment 3221 decreases, and the width of the second sub-segment 3222 decreases as well. The narrowest point of the first sub-segment 3221 and the narrowest point of the second sub-segment 3222 are connected. Through this arrangement, the distance between the edge lines of the orthographic projections of the first sub-segment 3221 and the second sub-segment 3222 onto the common electrode 40 and the edge line of the first opening 421 is unequal. This ensures that even if the first main electrode 32 and the second main electrode 42 are misaligned due to process precision limitations, at least a portion of the edge lines of the first sub-segment 3221 and the second sub-segment 3222 can be located within the first opening 421, thereby successfully forming an oblique electric field.

[0084] Furthermore, in some embodiments, at least a portion of the edge line of the first sub-segment 3221 is parallel to the extension direction of the first branch electrode 31, thereby aligning the edge line of the first sub-segment 3221 with the extension direction of the first branch electrode 31, reducing the difference between the electric field at the edge line of the first sub-segment 3221 and the electric field at the first branch electrode 31, thereby avoiding disordered arrangement of liquid crystal molecules.

[0085] Similarly, in some embodiments, at least a portion of the edge line of the second sub-segment 3222 is parallel to the extension direction of the first branch electrode 31, thereby aligning the edge line of the second sub-segment 3222 with the extension direction of the first branch electrode 31, reducing the difference between the electric field at the edge line of the second sub-segment 3222 and the electric field at the first branch electrode 31, thereby avoiding disordered arrangement of liquid crystal molecules.

[0086] In the display panel of this application, as Figure 3a and Figure 3b As shown, the width L1 of the first branch electrode and the width L2 of the second branch electrode are the same, and the spacing S1 between two adjacent first branch electrodes and the spacing S2 between two adjacent second branch electrodes are the same.

[0087] In this embodiment, the extension direction of the first branch electrode 31 is the length direction, and the direction perpendicular to the length direction is the width direction. The spacing between two adjacent first branch electrodes 31 is the width of the gap between the two adjacent first branch electrodes 31 in the width direction.

[0088] The extension direction of the second branch electrode 41 is the length direction, and the direction perpendicular to the length direction is the width direction. The width L1 of the first branch electrode and the width L2 of the second branch electrode are the same, and the spacing between two adjacent second branch electrodes 41 is the width of the gap between the two adjacent second branch electrodes 41 in the width direction.

[0089] By setting the width L1 of the first branch electrode and the width L2 of the second branch electrode to be the same, and setting the spacing S1 between two adjacent first branch electrodes and the spacing S2 between two adjacent second branch electrodes to be the same, the alignment relationship of multiple first branch electrodes 31 and multiple second branch electrodes 41 can be made consistent, so that the first branch electrodes 31 and the second branch electrodes 41 can be consistently misaligned to form an oblique electric field.

[0090] In the display panel of this application, as Figure 3a and Figure 3b As shown, within a sub-pixel 80 of the display panel, the pixel electrode 30 includes a first peripheral electrode 33 extending along a first direction D1, and a plurality of first branch electrodes 31 connected to the first peripheral electrode 33; the common electrode 40 includes a second peripheral electrode 43 extending along the first direction D1, and a plurality of second branch electrodes 41 connected to the second peripheral electrode 43, and the orthographic projection of the second peripheral electrode 43 on the pixel electrode 30 at least partially overlaps with the first peripheral electrode 33.

[0091] In this embodiment, the first peripheral electrode 33 can extend along the first direction D1, and the extension direction of the first peripheral electrode 33 is parallel to the extension direction of the first main electrode 32. One end of each of the plurality of first branch electrodes 31 is connected to the first main electrode 32, and the other end is connected to the first peripheral electrode 33. With the above arrangement, the driving voltage of the plurality of first branch electrodes 31 can be made more uniform.

[0092] The second peripheral electrode 43 can extend along the first direction D1, and the extension direction of the second peripheral electrode 43 is parallel to the extension direction of the second main electrode 42. One end of the plurality of second branch electrodes 41 is connected to the second main electrode 42, and the other end is connected to the second peripheral electrode 43. With the above arrangement, the common voltage of the plurality of second branch electrodes 41 can be made more uniform.

[0093] In this embodiment, the orthographic projection of the second peripheral electrode 43 onto the pixel electrode 30 at least partially overlaps with the first peripheral electrode 33. With this arrangement, at least a portion of the first peripheral electrode 33 and the second peripheral electrode 43 are directly opposite each other. The directly opposite first peripheral electrode 33 and the second peripheral electrode 43 can form a vertical electric field, preventing the tilting direction of liquid crystal molecules in the edge region of the pixel electrode 30 within a sub-pixel 80 from conflicting with the tilting direction of liquid crystal molecules in the middle region of the pixel electrode 30, thereby improving the light transmittance of the edge region of the sub-pixel 80.

[0094] Optionally, such as Figure 3a As shown, the pixel electrode 30 may include a third main electrode 34, which is intersected with the first main electrode 32. The third main electrode 34 extends along a second direction D2, which forms an angle with the first direction D1. The angle can be a right angle or an acute angle. A plurality of first branch electrodes 31 are connected to the third main electrode 34.

[0095] Correspondingly, such as Figure 3b As shown, the common electrode 40 may include a fourth main electrode 44, which is intersected with the second main electrode 42. The fourth main electrode 44 extends along the second direction D2. A plurality of second branch electrodes 41 are connected to the fourth main electrode 44.

[0096] It should be understood that the third main electrode 34 can be configured similarly to the first main electrode 32, that is, a first wide portion 321 and a first narrow portion 322 can be provided on the third main electrode 34. The fourth main electrode 44 can be configured similarly to the second main electrode 42, that is, a first opening 421 can be provided on the fourth main electrode 44. The configuration of the first wide portion 321, the first narrow portion 322, and the first opening 421 refers to the above embodiment and will not be repeated here.

[0097] It should be noted that, in some embodiments, a first opening 421 can be provided on the first main electrode 32, and a first wide portion 321 and a first narrow portion 322 can be provided on the second main electrode 42, which can also achieve the purpose of forming an oblique electric field between the first main electrode 32 and the second main electrode 42.

[0098] This application also provides a display terminal, which includes the display panel described above.

[0099] In this embodiment, the display terminal can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0101] The above provides a detailed description of a display panel and display terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: First substrate; The second substrate is positioned opposite the first substrate at a distance; Multiple pixel electrodes are disposed on the side of the first substrate facing the second substrate, and the pixel electrodes include multiple spaced first branch electrodes; A common electrode is disposed on the side of the second substrate facing the first substrate, and the common electrode includes a plurality of spaced second branch electrodes; A liquid crystal layer is disposed between the first substrate and the second substrate; as well as An auxiliary electrode is disposed between the pixel electrode and the first substrate, and the auxiliary electrode receives the same voltage as the pixel electrode; and / or, the auxiliary electrode is disposed between the common electrode and the second substrate, and the auxiliary electrode receives the same voltage as the common electrode. Wherein, the orthographic projection of the first branch electrode on the second substrate at least covers the adjacent edge lines of two adjacent second branch electrodes, and the orthographic projections of the first branch electrode and the second branch electrode on the auxiliary electrode are both located within the auxiliary electrode.

2. The display panel according to claim 1, characterized in that, The auxiliary electrode includes a plurality of first electrode portions disposed on the first substrate, and the first electrode portions are disposed between the pixel electrode and the first substrate, with one first electrode portion corresponding to and electrically connected to one pixel electrode.

3. The display panel according to claim 2, characterized in that, A first insulating layer is provided between the first electrode portion and the pixel electrode, and the first electrode portion and the pixel electrode are electrically connected through a first electrical connection post; or, the first electrode portion is disposed in contact with the pixel electrode and the first insulating layer is provided on the side of the first electrode portion away from the pixel electrode.

4. The display panel according to any one of claims 1 to 3, characterized in that, The auxiliary electrode includes a second electrode portion disposed on the second substrate, and the second electrode portion is disposed between the common electrode and the second substrate, and the second electrode portion is electrically connected to the common electrode.

5. The display panel according to claim 4, characterized in that, The auxiliary electrode includes at least one second electrode portion, and a second insulating layer is provided between the second electrode portion and the common electrode, or the second electrode portion is in contact with the common electrode.

6. The display panel according to claim 1, characterized in that, The pixel electrode includes a first trunk electrode connected to a plurality of first branch electrodes. The first trunk electrode includes a first wide portion and a first narrow portion. The first wide portion and the first narrow portion are alternately connected and disposed along a first direction. The width of the first wide portion is greater than the width of the first narrow portion. The common electrode includes a second main electrode connected to a plurality of second branch electrodes. The second main electrode is provided with a plurality of first openings, and the plurality of first openings are arranged at intervals along the first direction. Wherein, at least a portion of the orthographic projection of the first narrow portion onto the common electrode lies within the first opening.

7. The display panel according to claim 6, characterized in that, The first narrow portion includes a first sub-segment and a second sub-segment. In the first direction, one end of the first sub-segment is connected to a first wide portion, the other end of the first sub-segment is connected to the second sub-segment, and the other end of the second sub-segment is connected to another first wide portion. Wherein, the width of the first sub-segment decreases from the side where the first sub-segment is connected to the first wide portion to the side where the first sub-segment is connected to the second sub-segment, and the width of the second sub-segment decreases from the side where the second sub-segment is connected to the first wide portion to the side where the second sub-segment is connected to the first sub-segment.

8. The display panel according to claim 1, characterized in that, The width of the first branch electrode is the same as the width of the second branch electrode, and the spacing between two adjacent first branch electrodes is the same as the spacing between two adjacent second branch electrodes.

9. The display panel according to claim 1, characterized in that, Within a sub-pixel of the display panel, the pixel electrode includes a first peripheral electrode extending along a first direction, and a plurality of first branch electrodes connected to the first peripheral electrode; the common electrode includes a second peripheral electrode extending along the first direction, and a plurality of second branch electrodes connected to the second peripheral electrode, wherein the orthographic projection of the second peripheral electrode on the pixel electrode at least partially overlaps with the first peripheral electrode.

10. A display terminal, characterized in that, The display terminal includes a display panel as described in any one of claims 1 to 9.

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