Display apparatus

Abstract

A display apparatus, comprising a first display substrate, a second display substrate, and a liquid crystal layer located between the first display substrate and the second display substrate, wherein the first display substrate comprises a first electrode and a plurality of first signal lines and second signal lines; the second display substrate comprises a second electrode; the first signal lines and the second signal lines cross to define pixel regions; first electrodes in different pixel regions are insulated from each other; first electrodes in the same pixel region each comprise a plurality of sub-electrodes electrically connected to each other; each sub-electrode comprises a plurality of strip-shaped electrodes and an electrode connection portion connected to the strip-shaped electrodes; a first gap is provided between adjacent strip-shaped electrodes; extension directions of strip-shaped electrodes in adjacent sub-electrodes intersect; a second gap is provided between at least two adjacent sub-electrodes in each pixel region; an electrode connection portion is provided between the second gap and the first gap; and at least part of the second gap is surrounded by the first electrode. Thus, a reduction in dark fringes between domains is facilitated, thereby improving the light transmittance of the display apparatus.

Description

Display device Technical Field

[0001] An embodiment of the present disclosure relates to a display device. Background Art

[0002] With the development of liquid crystal display technology, large-scale, high-brightness display devices are becoming increasingly popular. Liquid crystal display devices include twisted alignment display mode, in-plane switching display mode, and vertical alignment display mode. The vertical alignment display mode, with its advantages such as wide viewing angle and high contrast, is widely used in large-scale display devices.

[0003] Summary of the Invention

[0004] An embodiment of the present disclosure provides a display device comprising: a first display substrate, a second display substrate, and a liquid crystal layer located between the first and second display substrates. The first display substrate comprises a first base substrate, and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate, wherein the arrangement direction of the plurality of first signal lines intersects the arrangement direction of the plurality of second signal lines. The second display substrate is located on a side of the plurality of first electrodes away from the first base substrate, and comprises a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate. The multiple first signal lines and the multiple second signal lines are cross-arranged to define multiple pixel areas, and the first electrodes in different pixel areas are insulated from each other; in at least some pixel areas, the first electrode in the same pixel area includes multiple electrically connected sub-electrodes, each sub-electrode includes multiple strip electrodes and an electrode connecting portion connected to the multiple strip electrodes, a first gap is provided between adjacent strip electrodes in each sub-electrode, and the extension directions of the strip electrodes in adjacent sub-electrodes intersect; a second gap is provided between at least two adjacent sub-electrodes in each pixel area, the electrode connecting portion is provided between the second gap and the first gap, and at least a portion of the second gap is surrounded by the first electrode.

[0005] For example, according to an embodiment of the present disclosure, at least one sub-electrode includes a non-closed annular electrode connecting portion surrounding the plurality of strip electrodes, the electrode connecting portion includes an opening, and the opening exposes at least one end of a portion of the strip electrodes.

[0006] For example, according to an embodiment of the present disclosure, the multiple first signal lines are arranged along a first direction, and the multiple second signal lines are arranged along a second direction; within the same pixel area, the multiple sub-electrodes are arranged along one of the first direction and the second direction, and the opening only exposes one end of a portion of the strip electrode.

[0007] For example, according to an embodiment of the present disclosure, the contour shape of the at least one sub-electrode includes a polygon, and the electrode connecting portion surrounds at least two sides of the polygon.

[0008] For example, according to an embodiment of the present disclosure, two adjacent sub-electrodes in the same pixel area of ​​at least one pixel area include a non-closed annular electrode connecting portion surrounding the multiple strip electrodes, the electrode connecting portion includes an opening, and the opening exposes one end of a portion of the strip electrode; the same pixel area of ​​the at least one pixel area includes a first sub-electrode and a second sub-electrode arranged adjacent to each other, the first sub-electrode is close to the edge of the pixel area, and the second sub-electrode is close to the center of the pixel area; the orientation of the opening of the electrode connecting portion in the first sub-electrode is different from the orientation of the opening of the electrode connecting portion in the second sub-electrode.

[0009] For example, according to an embodiment of the present disclosure, the multiple first signal lines are arranged along a first direction, and the multiple second signal lines are arranged along a second direction; the first sub-electrode and the second sub-electrode are arranged along the first direction, the opening of the electrode connecting portion in the first sub-electrode faces the first signal line, and the opening of the electrode connecting portion in the second sub-electrode faces the second signal line.

[0010] For example, according to an embodiment of the present disclosure, the orientation of the opening of the electrode connecting portion in the first sub-electrode is opposite to the orientation of the opening of the electrode connecting portion in the second sub-electrode.

[0011] For example, according to an embodiment of the present disclosure, the multiple first signal lines are arranged along a first direction, the multiple second signal lines are arranged along a second direction, and the first sub-electrode and the second sub-electrode are arranged along the first direction; the at least one pixel area includes two first sub-electrodes, and the openings of the electrode connecting portions in the two first sub-electrodes are oriented in the same direction, or, the opening of the electrode connecting portion in one of the two first sub-electrodes is oriented toward the first signal line, and the opening of the electrode connecting portion in the other of the two first sub-electrodes is oriented toward the second signal line.

[0012] For example, according to an embodiment of the present disclosure, the multiple first signal lines are arranged along a first direction, and the multiple second signal lines are arranged along a second direction; the first sub-electrode and the second sub-electrode are arranged along the first direction, the opening of the electrode connecting portion in the first sub-electrode and the opening of the electrode connecting portion in the second sub-electrode are both facing the second signal line, and a straight line extending along the first direction passes through the edge of the strip electrode in the first sub-electrode exposed by the opening and the edge of the electrode connecting portion in the second sub-electrode.

[0013] For example, according to an embodiment of the present disclosure, the at least one pixel area includes four sub-electrodes arranged along the arrangement direction of the multiple first signal lines and one of the arrangement directions of the multiple second signal lines. Among the four sub-electrodes, the second gap is set between the first sub-electrode and the second sub-electrode, and the second gap is set between the third sub-electrode and the fourth sub-electrode.

[0014] For example, according to an embodiment of the present disclosure, the multiple first signal lines are arranged along the first direction, and the multiple second signal lines are arranged along the second direction; within the same pixel area, the multiple sub-electrodes are arrayed along the first direction and the second direction, and the second gap is set between adjacent sub-electrodes arranged along the first direction, and the second gap is set between adjacent sub-electrodes arranged along the second direction.

[0015] For example, according to an embodiment of the present disclosure, at least one sub-electrode includes a closed ring-shaped electrode connecting portion surrounding the plurality of strip-shaped electrodes.

[0016] For example, according to an embodiment of the present disclosure, more than 90% of the electrode connecting portions are located between the plurality of strip electrodes of adjacently arranged sub-electrodes in the same pixel region.

[0017] For example, according to an embodiment of the present disclosure, an angle between the strip electrode and one of the arrangement directions of the plurality of first signal lines and the arrangement directions of the plurality of second signal lines is 30° to 80°.

[0018] For example, according to an embodiment of the present disclosure, the width of the strip electrode is 2 to 4 micrometers, and the width of the first gap is 2 to 4 micrometers.

[0019] For example, according to an embodiment of the present disclosure, the width of the second gap is 2 to 3.6 micrometers, and the ratio of the width of the second gap to the width of the strip electrode is 0.5 to 2.

[0020] For example, according to an embodiment of the present disclosure, one of the first display substrate and the second display substrate includes an alignment film that has undergone alignment treatment, and the alignment film is located between the liquid crystal layer and the second electrode; or, both the first display substrate and the second display substrate include an alignment film that has undergone alignment treatment.

[0021] For example, according to an embodiment of the present disclosure, the first display substrate also includes a plurality of conductive parts that are insulated and arranged in the same layer as the multiple first signal lines, and at least some of the conductive parts include a first conductive part extending along the arrangement direction of the multiple first signal lines and a second conductive part extending along the arrangement direction of the multiple second signal lines. Along the direction perpendicular to the first base substrate, the first conductive part does not overlap with the second signal line, and the first conductive part and the second conductive part both overlap with the first electrode.

[0022] For example, according to an embodiment of the present disclosure, the first display substrate also includes a connecting structure connecting the conductive parts located on both sides of the first signal line. The connecting structure is in the same layer as the first electrode and is insulated. Along a direction perpendicular to the first base substrate, the connecting structure overlaps with the first signal line, and the overlapping part of the connecting structure and the first signal line includes a first notch.

[0023] For example, according to an embodiment of the present disclosure, a straight line extending along the second direction passes through the first electrode and the connection structure, and the first electrode is provided with a second notch to avoid the connection structure, and the second notch is formed by the electrode connection portion being recessed toward one side of the strip electrode.

[0024] Another embodiment of the present disclosure provides a display device, comprising: a first display substrate, a second display substrate, and a liquid crystal layer located between the first and second display substrates. The first display substrate comprises a first base substrate, and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate. The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction, with the first direction intersecting the second direction. The second display substrate is located on a side of the plurality of first electrodes away from the first base substrate. The second display substrate comprises a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are arranged to intersect to define a plurality of pixel regions, with the first electrodes in different pixel regions being insulated from each other. In at least some pixel regions, the first electrode in the same pixel region comprises a plurality of electrically connected sub-electrodes, each sub-electrode comprising a plurality of strip electrodes, with a first gap disposed between adjacent strip electrodes in each sub-electrode. The strip electrodes in adjacent sub-electrodes extend parallel to the first and second directions, respectively, and each sub-electrode further comprises a closed annular electrode connecting portion surrounding the plurality of strip electrodes.

[0025] For example, according to an embodiment of the present disclosure, in at least one pixel region, the same pixel region includes four sub-electrodes arranged in an array along the first direction and the second direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0027] FIG1 is a schematic diagram of a partial planar structure of a display device.

[0028] FIG. 2 is a schematic diagram of a pixel region of the display device shown in FIG. 1 when performing display.

[0029] FIG3 is a schematic diagram of a partial cross-sectional structure of a display device provided according to an embodiment of the present disclosure.

[0030] FIG. 4 is a schematic diagram of a partial planar structure of the first display substrate in the display device shown in FIG. 3 .

[0031] FIG. 5 is a schematic diagram of a pixel region in the display device shown in FIG. 4 during display.

[0032] 6 to 10 are schematic diagrams of different film layers in the first display substrate shown in FIG. 5 .

[0033] FIG11 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0034] 12A and 12B are schematic diagrams of the layout structure of the film layer where the first electrode shown in FIG11 is located in different examples.

[0035] FIG13 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0036] FIG14 is a schematic diagram of the layout structure of the film layer where the first electrode shown in FIG13 is located.

[0037] FIG15 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0038] FIG16 is a schematic diagram of the layout structure of the film layer where the first electrode shown in FIG15 is located.

[0039] FIG17 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0040] FIG18 is a schematic diagram of the layout structure of the film layer where the first electrode shown in FIG17 is located.

[0041] FIG19 is a schematic diagram of a partial planar structure of a display device provided according to another embodiment of the present disclosure.

[0042] FIG20 is a schematic diagram of the layout structure of the film layer where the first electrode shown in FIG19 is located. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0044] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meanings understood by people with ordinary skills in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are simply used to distinguish different components. The words "include" or "comprising" and similar terms mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0045] The features such as “parallel”, “perpendicular” and “same” used in the embodiments of the present disclosure include the features such as “parallel”, “perpendicular” and “same” in the strict sense, as well as the cases where “approximately parallel”, “approximately perpendicular” and “approximately the same” contain certain errors, taking into account the errors associated with the measurement and the measurement of specific quantities (for example, the limitations of the measurement system), and are expressed as being within the acceptable deviation range for a specific value determined by a person of ordinary skill in the art. For example, “approximately” can mean within one or more standard deviations, or within 10% or 5% of the value. When the number of a component is not specifically indicated below in the embodiments of the present disclosure, it means that the component can be one or more, or can be understood as at least one. “At least one” refers to one or more, and “a plurality” refers to at least two.

[0046] The "integrated structure" in the present disclosure refers to a structure in which two (or more) structures are formed by the same deposition process and patterned by the same composition process to form a structure connected to each other, and their materials may be the same or different.

[0047] FIG1 is a schematic diagram of a partial planar structure of a display device, and FIG2 is a schematic diagram of a pixel region of the display device shown in FIG1 when displaying.

[0048] As shown in Figures 1 and 2, the display device includes an array substrate, which includes a plurality of gate lines 11 and a plurality of data lines 12. The gate lines 11 extend along the X direction, and the data lines 12 extend along the Y direction. The plurality of gate lines 11 and the plurality of data lines 12 are insulated and cross-arranged to define a plurality of pixel areas.

[0049] For example, as shown in Figures 1 and 2, the pixel area is provided with a pixel electrode 13 and a thin film transistor 14, the gate line 11 is electrically connected to the gate of the thin film transistor 14 to control the opening or closing of the thin film transistor 14, the pixel electrode 13 is electrically connected to one of the source and drain of the thin film transistor 14, the data line 12 is electrically connected to the other of the source and drain of the thin film transistor 14, and the data line 11 inputs the voltage signal required for displaying the picture to the pixel electrode 13 through the thin film transistor 14 to realize the display of the display device.

[0050] The display device shown in Figure 1 also includes an opposing substrate, such as a color filter substrate, disposed opposite the array substrate. A liquid crystal layer 16 is disposed between the array substrate and the color filter substrate. The solid arrows in Figure 1 indicate alignment directions 17 on the alignment film disposed on the array substrate. For example, alignment directions 17 include two opposite directions parallel to the X direction. The dashed arrows in Figure 1 indicate alignment directions 18 on the alignment film disposed on the color filter substrate. For example, alignment directions 18 include two opposite directions parallel to the Y direction. The initial alignment direction of the liquid crystals in the liquid crystal layer 16, such as the pretilt angle, is determined by both the alignment film on the array substrate and the alignment film on the color filter substrate.

[0051] As shown in Figure 1, the alignment film in the array substrate has two opposite alignment directions 17 corresponding to the same pixel area, and the alignment film in the color filter substrate has two opposite alignment directions 18 corresponding to the same pixel area. Consequently, the liquid crystal 16 in the same pixel area has four deflection directions under the combined action of the alignment films on both sides, forming four domains. By providing multiple domains in a pixel area, the diversity of liquid crystal rotation directions is increased, alleviating the color shift problem of the display device at wide viewing angles.

[0052] As shown in Figure 2, the display device further includes a black matrix 19 for defining a pixel area 30. For example, the black matrix 19 may be located on a color filter substrate.

[0053] During the study, the inventors of the present application discovered that in a display device using vertical alignment display technology, due to the inconsistent orientation of liquid crystal molecules at the boundary between domains in a multi-domain display, for example, at the boundary between domains where the liquid crystal molecules are oriented in opposite directions, the liquid crystal molecules are inverted and disordered, forming inter-domain dark stripes 20 as shown in FIG2 , thereby reducing the transmittance of the display device.

[0054] The present disclosure provides a display device comprising: a first display substrate, a second display substrate, and a liquid crystal layer located between the first and second display substrates. The first display substrate comprises a first base substrate, and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate, wherein the arrangement direction of the plurality of first signal lines intersects the arrangement direction of the plurality of second signal lines. The second display substrate is located on a side of the plurality of first electrodes away from the first base substrate, and comprises a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate. The multiple first signal lines and the multiple second signal lines are cross-arranged to define multiple pixel areas, and the first electrodes in different pixel areas are insulated from each other; in at least some pixel areas, the first electrode in the same pixel area includes multiple electrically connected sub-electrodes, each sub-electrode includes multiple strip electrodes and an electrode connecting portion connected to the multiple strip electrodes, a first gap is provided between adjacent strip electrodes in each sub-electrode, and the extension directions of the strip electrodes in adjacent sub-electrodes intersect; a second gap is provided between at least two adjacent sub-electrodes in each pixel area, the electrode connecting portion is provided between the second gap and the first gap, and at least a portion of the second gap is surrounded by the first electrode. By providing multiple sub-electrodes in the same pixel area, with each sub-electrode including multiple strip electrodes, and with the strip electrodes in different sub-electrodes extending in different directions, multi-domain display can be achieved in the same pixel area; and by providing a second gap between two adjacent sub-electrodes, with an electrode connecting portion provided between the second gap and the first gap, it is possible to prevent the edges of the strip electrodes in adjacent sub-electrodes that are close to each other from being significantly affected by the application of an electric field on the deflection of liquid crystal molecules at the boundary position of the two adjacent sub-electrodes, thereby reducing the disorder of the deflection direction of the liquid crystal molecules between the two adjacent sub-electrodes, which is beneficial to reducing inter-domain dark stripes to improve the transmittance of the display device.

[0055] The present disclosure provides another display device, comprising: a first display substrate, a second display substrate, and a liquid crystal layer located between the first and second display substrates. The first display substrate comprises a first base substrate, and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate. The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction, with the first direction intersecting the second direction. The second display substrate is located on a side of the plurality of first electrodes away from the first base substrate. The second display substrate comprises a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are arranged to intersect to define a plurality of pixel regions, with the first electrodes in different pixel regions being insulated from each other. In at least some pixel regions, the first electrode in the same pixel region comprises a plurality of electrically connected sub-electrodes, each sub-electrode comprising a plurality of strip electrodes, with a first gap being provided between adjacent strip electrodes in each sub-electrode. The strip electrodes in adjacent sub-electrodes extend parallel to the first and second directions, respectively, and each sub-electrode further comprises a closed annular electrode connecting portion surrounding the plurality of strip electrodes. By providing a plurality of sub-electrodes including strip electrodes in the first electrode, matching the orientation direction of the orientation film in each display substrate with the extension direction of the strip electrodes in different sub-electrodes, and setting the electrode connection portion as a closed ring, it is helpful to alleviate the deflection disorder of liquid crystal molecules at the boundary of adjacent sub-electrodes, thereby reducing dark lines and improving the transmittance of the display device.

[0056] The display device provided by the embodiments of the present disclosure is described below with reference to the accompanying drawings.

[0057] Figure 3 is a schematic diagram of a partial cross-sectional structure of a display device according to an embodiment of the present disclosure, and Figure 4 is a schematic diagram of a partial planar structure of a first display substrate in the display device shown in Figure 3. Figure 5 is a schematic diagram of a pixel region in the display device shown in Figure 4 during display. Figures 6 to 10 are schematic diagrams of different film layers in the first display substrate shown in Figure 5. Figure 3 is a schematic diagram of a partial cross-sectional structure taken along line AA' shown in Figure 4.

[0058] As shown in Figures 3 and 4, the display device includes a first display substrate 100 and a second display substrate 200 disposed opposite to each other, and a liquid crystal layer 300 located between the first display substrate 100 and the second display substrate 200. The first display substrate 200 includes a first base substrate 110, and a plurality of first electrodes 120, a plurality of first signal lines 130, and a plurality of second signal lines 140 located on the first base substrate 110. The arrangement direction of the plurality of first signal lines 130 intersects with the arrangement direction of the plurality of second signal lines 140.

[0059] In some examples, as shown in FIG4 , multiple first signal lines 130 extend along a first direction, and multiple second signal lines 140 extend along a second direction. For example, FIG4 schematically illustrates the first direction as the X direction and the second direction as the Y direction, but the present invention is not limited thereto. The first and second directions can be interchangeable. For example, the first and second directions can intersect. For example, the angle between the first and second directions can be 80 to 100 degrees. For example, the first and second directions can be perpendicular.

[0060] For example, as shown in FIG4 , one of the first signal line 130 and the second signal line 140 is configured to transmit a data signal, and the other is configured to transmit a gate signal. For example, the first signal line 130 may be a gate line that transmits a gate signal, and the second signal line 140 may be a data line that transmits a data signal, but the present invention is not limited thereto, and the first signal line and the second signal line may be interchangeable.

[0061] As shown in FIG. 4 , the second display substrate 200 is located on a side of the plurality of first electrodes 120 away from the first base substrate 110 . The second display substrate 200 includes a second base substrate 210 and a second electrode 220 located on a side of the second base substrate 210 facing the first display substrate 100 .

[0062] For example, as shown in FIG4 , the first electrode 120 may be a pixel electrode, and the second electrode 220 may be a common electrode. For example, the first electrode 120 and the second electrode 220 may be made of a transparent conductive material. For example, the material of the first electrode 120 may include indium tin oxide (ITO).

[0063] As shown in FIG. 3 and FIG. 4 , a plurality of first signal lines 130 and a plurality of second signal lines 140 are intersected to define a plurality of pixel regions 134 , and the first electrodes 120 in different pixel regions 134 are insulated from each other.

[0064] For example, as shown in Figure 4, each pixel area 134 is the area where a sub-pixel is located, which can also be called a display area, for displaying a color of light. For example, the boundary of each pixel area 134 can be a boundary surrounded by the four sides of the first signal line 130 and the second signal line 140 closest to the center of the pixel area 134. For example, a black matrix is ​​provided between adjacent pixel areas 134. For example, a first signal line 130 or a second signal line 140 is provided between adjacent pixel areas 134. For example, a plurality of pixel areas 134 are arranged in an array along a first direction and a second direction. The center of the above-mentioned pixel area refers to the geometric center of the pixel area. For example, the geometric center may overlap with the second conductive portion 152 (described later).

[0065] As shown in Figures 3 and 4, in at least part of the pixel area 134, the first electrode 120 in the same pixel area 134 includes multiple electrically connected sub-electrodes 1200, and each sub-electrode 1200 includes multiple strip electrodes 1210 and an electrode connecting portion 1220 connected to the multiple strip electrodes 1210.

[0066] For example, as shown in Figures 3 and 4 , the first electrode 120 included in each pixel region 134 includes a plurality of sub-electrodes 1200. For example, the strip electrodes 1210 of each sub-electrode 1200 are electrically connected via an electrode connecting portion 1220. For example, at least one end of the strip electrodes 1210 is connected to the electrode connecting portion 1220.

[0067] For example, as shown in Figures 3 and 4, the strip electrodes 1210 and the electrode connecting portion 1220 may be integrated. For example, the multiple sub-electrodes 1200 included in the same first electrode 120 may be integrated or spaced apart and electrically connected via other conductive layers.

[0068] For example, as shown in Figures 3 and 4, the area where each sub-electrode 1200 in the same pixel region 134 is located is a domain. Different sub-electrodes 1200 are located in different domains, and the same pixel region 134 includes multiple domains. For example, the number of strip electrodes 1210 included in different sub-electrodes 1200 can be the same or different. For example, in at least one pixel region 134, the number of strip electrodes 1210 included in each sub-electrode 1200 is the same. For example, in at least one pixel region 134, the number of strip electrodes 1210 included in at least one sub-electrode 1200 is different from the number of strip electrodes 1210 included in other sub-electrodes 1200.

[0069] As shown in Figures 3 and 4 , in the same pixel region 134, a first gap 121 is provided between adjacent strip electrodes 1210 in each sub-electrode 1200, and the extension directions of the strip electrodes 1210 in adjacent sub-electrodes 1200 intersect. For example, the multiple strip electrodes 1210 in each sub-electrode 1200 are arranged in parallel, and in the same pixel region 134, the angle between the extension directions of the strip electrodes 1210 in adjacent sub-electrodes 1200 is 20 to 90 degrees, such as 30 to 85 degrees, 40 to 80 degrees, or 45 to 60 degrees.

[0070] For example, as shown in Figure 4, the first gap 121 is in a strip shape. For example, the width of the first gap 121 at each position is uniform.

[0071] For example, as shown in Figures 3 and 4, the width ratio of different strip electrodes 1210 in the same sub-electrode 1200 is 0.95~1.05, and the width ratio of strip electrodes 1210 in different sub-electrodes 1200 is 0.95~1.05; the width ratio of different first gaps 121 in the same sub-electrode 1200 is 0.95~1.05, and the width ratio of first gaps 121 in different sub-electrodes 1200 is 0.95~1.05.

[0072] For example, the widths of different strip electrodes 1210 in the same sub-electrode 1200 are equal, and the widths of the strip electrodes 1210 in different sub-electrodes 1200 are equal; the widths of different first gaps 121 in the same sub-electrode 1200 are equal, and the widths of the first gaps 121 in different sub-electrodes 1200 are equal.

[0073] In some examples, as shown in Figures 3 and 4, the width of the strip electrodes 1210 is 2 to 4 microns, and the width of the first gaps 121 is 2 to 4 microns. For example, the width of the strip electrodes 1210 is 2.5 to 3.5 microns, such as 2.8 to 3.2 microns, or 3 microns. For example, the width of the first gaps 121 is 2.2 to 3 microns, such as 2.4 to 2.8 microns, or 2.6 microns.

[0074] For example, the width of the strip electrodes 1210 is greater than the width of the first gaps 121, which is beneficial for increasing the electric field strength. For example, the ratio of the width of the strip electrodes 1210 to the width of the first gaps 121 is 1.05-1.5, such as 1.1-1.4, such as 1.15.

[0075] As shown in Figures 3 and 4 , a second gap 122 is provided between at least two adjacent sub-electrodes 1200 in each pixel region 134. An electrode connecting portion 1220 is provided between the second gap 122 and the first gap 121, and at least a portion of the second gap 122 is surrounded by the first electrode 120. For example, the second gap 122 is not connected to the first gap 121.

[0076] The above-mentioned sub-electrodes 1200 are the electrodes circled by dotted boxes in Figures 4 and 10. The multiple sub-electrodes 1200 included in the same first electrode 120 are connected through an electrode connecting portion 1220. A second gap 122 can be set between two adjacent sub-electrodes 1200, or no gap can be set, and an electrode connecting portion 1220 is set between the strip electrodes 1210 of adjacent sub-electrodes 1200.

[0077] The display device provided by the embodiment of the present disclosure can achieve multi-domain display in the same pixel area by providing multiple sub-electrodes in the same pixel area, and each sub-electrode includes multiple strip electrodes, and the extension directions of the strip electrodes in different sub-electrodes are different. In addition, by providing a second gap between two adjacent sub-electrodes, and providing an electrode connecting portion between the second gap and the first gap, it can prevent the edges of the strip electrodes in adjacent sub-electrodes that are close to each other from being significantly affected by the electric field applied to the edges of the strip electrodes that are close to each other in the adjacent sub-electrodes from having a significant impact on the deflection of liquid crystal molecules at the boundary position of the two adjacent sub-electrodes, thereby reducing the disorder of the deflection direction of the liquid crystal molecules between the two adjacent sub-electrodes, which is beneficial to reducing the dark lines between domains and improving the transmittance of the display device.

[0078] For example, the second gap may be a gap extending through along the Y direction as shown in FIG4 , or it may include a plurality of sub-gaps spaced apart from each other, and the plurality of sub-gaps are arranged along the Y direction. The sizes of the plurality of sub-gaps may be the same or different. Thus, the sizes of the sub-gaps may be adjusted according to the positions of different sub-electrodes in the corresponding pixel area, the electric field strength may be adjusted, and the deflection direction of the liquid crystal may be adjusted to reduce the interdomain dark stripes.

[0079] In some examples, as shown in FIG3 , one of the first display substrate 100 and the second display substrate 200 includes an alignment film 230 configured to undergo an alignment process, and the alignment film 230 is located between the liquid crystal layer 300 and the second electrode 220. For example, only the second display substrate 200 is provided with the alignment film 230 that has undergone the alignment process, while the first display substrate 100 is provided with a film layer 03 covering the first electrode 120, and the film layer 03 has not undergone the alignment process.

[0080] Compared to the display device shown in FIG1 in which alignment films that have undergone alignment treatment are provided in both display substrates, in the display device provided by the embodiment of the present disclosure, an alignment film that has undergone alignment treatment is provided in only one display substrate, and an electrode structure having multiple strip electrodes is provided in the other substrate. By controlling the alignment film that controls the pretilt angle of the liquid crystal molecules and the strip electrodes with different extension directions, a second gap is provided between adjacent sub-electrodes, which can alleviate the problem of deflection disorder of the inter-domain liquid crystal molecules, and is beneficial to reducing the inter-domain dark lines to improve the transmittance of the display device.

[0081] Of course, the embodiment of the present disclosure is not limited thereto, and an alignment film that has undergone alignment treatment may also be provided in the first display substrate.

[0082] In some examples, as shown in FIG4 and FIG10 , the angle between the strip electrode 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the plurality of second signal lines 130 is 30° to 80°. For example, the angle between the strip electrode 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the plurality of second signal lines 130 is 37° to 75°. For example, the angle between the strip electrode 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the plurality of second signal lines 130 is 40° to 75°. For example, the angle between the strip electrode 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the plurality of second signal lines 130 is 45° to 70°. For example, the angle between the strip electrode 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the plurality of second signal lines 130 is 50° to 65°.

[0083] For example, as shown in Figures 4 and 10, the angle between the strip electrodes 1210 and one of the arrangement directions of the plurality of first signal lines 130 and the arrangement directions of the plurality of second signal lines 130 is 37°, 45°, 70°, 65°, or 75°. For example, the angle between the strip electrodes 1210 and the Y direction can be 37°, 45°, 70°, 65°, or 75°.

[0084] For example, Figure 4 schematically illustrates the alignment direction 18 of the alignment film in the second display substrate, as indicated by the dashed arrow. This alignment direction, combined with the tilt angle of the strip electrodes, enables multi-domain display adjustment of the liquid crystal molecules. Figure 4 shows the liquid crystal in a state of deflection caused by an applied electric field. For example, this alignment direction can be roughly parallel to the direction in which the strip electrodes extend.

[0085] For example, if the angle between the strip electrodes 1210 and the Y direction is 37°, and the polarization direction of the linearly polarized light during the alignment process is 45°, Δn is minimized. The smaller the gamma shift, the less likely the color shift is to occur. Therefore, the smaller Δn, the less likely the color shift is to occur. For example, the liquid crystal in the liquid crystal layer can be positive liquid crystal, such as one with birefringence. This means that the liquid crystal has different refractive indices ne and no in different directions. Δn refers to the difference between the refractive indices ne and no. This refers to the difference in display brightness at different viewing angles at different grayscale levels, resulting in a change in gamma, which is the aforementioned gamma shift.

[0086] FIG4 schematically illustrates the location of dark fringes 20 generated in a pixel region using dashed lines. This location, when the display device is operating, can be seen in the simulated transmittance diagram of FIG5 . Compared to the dark fringes in the display device shown in FIG2 , the display device shown in FIG5 utilizes strip electrodes and an alignment film to jointly control the multi-domain display of the liquid crystal, and provides a second gap between adjacent sub-electrodes that is not connected to the first gap. This alleviates the phenomenon of liquid crystal deflection disorder between adjacent sub-electrodes, reduces the width of the dark fringes, and improves the transmittance of the display device. For example, compared to the display device shown in FIG2 , the transmittance of the display device shown in FIG5 is improved by 10%.

[0087] In some examples, as shown in Figures 3 and 4, the ratio of the width of the second gap 122 to the width of the strip electrode 1210 is 0.5 to 2. By setting the relationship between the width of the second gap and the width of the strip electrode, it is helpful to adjust the pretilt angle of the liquid crystal molecules to reduce interdomain dark stripes, thereby improving the light transmittance of the display device.

[0088] For example, the ratio of the width of the second gap 122 to the width of the strip electrode 1210 is 0.6 to 1.8. For example, the ratio of the width of the second gap 122 to the width of the strip electrode 1210 is 0.8 to 1.5. For example, the ratio of the width of the second gap 122 to the width of the strip electrode 1210 is 1 to 1.2. For example, the width of the second gap 122 is equal to the width of the strip electrode 1210.

[0089] In some examples, as shown in Figures 3 and 4, the width of the second gap 122 is 2 to 3.6 microns. For example, the width of the second gap 122 is 2.2 to 3.5 microns. For example, the width of the second gap 122 is 2.5 to 3 microns. For example, the width of the second gap 122 is 2.6 microns.

[0090] For example, as shown in FIG3 and FIG4 , the widths of the first gap 121 and the second gap 122 are equal to further reduce the interdomain dark fringes and improve the light transmittance.

[0091] For example, as shown in Figure 4, the second gap 122 is in a strip shape. For example, the width of the second gap 122 at each position is equal.

[0092] For example, as shown in FIG4 , one end of the second gap 122 may be flush with one end of the first gap 121 in the X direction, and the other end of the second gap 122 may be flush with the other end of the first gap 121 in the X direction, so as to adjust the deflection of the liquid crystal at the boundary between two adjacent domains and reduce the dark stripes between domains.

[0093] For example, as shown in Figures 4 and 10, the extension direction of the first gap 121 is different from the extension direction of the second gap 122. For example, the angle between the extension direction of the first gap 121 and the extension direction of the second gap 122 can be 30 to 90 degrees. For example, the angle between the extension direction of the first gap 121 and the extension direction of the second gap 122 can be 37 to 75 degrees. For example, the angle between the extension direction of the first gap 121 and the extension direction of the second gap 122 can be 45 to 65 degrees. For example, the angle between the extension direction of the first gap 121 and the extension direction of the second gap 122 can be 50 to 70 degrees.

[0094] 4 and 10 , at least one pixel region 134 includes four sub-electrodes 1200 arranged along one of the arrangement directions of the first signal lines 130 and the second signal lines 140. For example, one pixel region 134 may have four domains.

[0095] In some examples, as shown in Figures 4 and 10, a second gap 122 is provided between the first sub-electrode 1200 and the second sub-electrode 1200, and a second gap 122 is provided between the third sub-electrode 1200 and the fourth sub-electrode 1200. The combined effects of the pretilt angles of the liquid crystal molecules corresponding to the different sub-electrodes, the strip electrodes, and the second gaps between adjacent sub-electrodes that are not connected to the first gaps can help reduce the instability of liquid crystal deflection at the boundary between two adjacent domains, improve the stability of liquid crystal deflection, and alleviate the dark line phenomenon.

[0096] For example, the conductive portion shown in FIG6 is provided between the second sub-electrode and the third sub-electrode. Even if there is a dark line at this position, the second gap may not be provided.

[0097] For example, as shown in FIG. 4 and FIG. 10 , the width of the second gap 122 is smaller than the average width of the electrode connecting portion 1220 between the second sub-electrode 1200 and the third sub-electrode 1200 .

[0098] For example, as shown in Figures 4 and 10, the outer contour of the electrode 120 includes a circle of electrode connecting portions 1220. The shape of the electrode connecting portion 1220 defines the shape of the electrode 120. For example, the shape of the electrode 120 can be polygonal, such as a roughly quadrilateral, or a quadrilateral with rounded corners, or a quadrilateral with four straight corners. For example, the shape of the sub-electrode 1200 can be polygonal, such as a roughly quadrilateral.

[0099] For example, in each sub-electrode 1200 , each strip electrode 1210 is surrounded by a closed ring-shaped electrode connecting portion 1220 . For example, both ends of each strip electrode 1210 are connected to the electrode connecting portion 1220 .

[0100] 4 and 10 , the second gap 122 is surrounded by the electrode connecting portion 1220 . For example, the first gap 121 is surrounded by the strip electrodes 1210 and the electrode connecting portion 1220 .

[0101] For example, as shown in Figures 3 and 4, the first signal line 130 is located on the first base substrate 110, the second signal line 140 is located on the side of the first signal line 130 away from the first base substrate 110, and an insulating layer 01 is provided between the second signal line 140 and the first signal line 130, the first electrode 120 is located on the side of the second signal line 140 away from the first signal line 130, and an insulating layer 02 is provided between the first electrode 120 and the second signal line 140, and a transparent film layer 03 is provided on the side of the first electrode 120 away from the first base substrate 110. The film layer 03 can be an alignment material layer that has not undergone alignment treatment, but is not limited to this. The film layer 03 can also be an alignment film that has undergone alignment treatment.

[0102] In some examples, as shown in Figures 3, 4, and 6 to 10, the first display substrate 100 further includes a plurality of conductive portions 150 disposed insulated from and co-layered with the plurality of first signal lines 130. For example, at least one conductive portion 150 is disposed between adjacent first signal lines 130, and a gap is provided between the conductive portion 150 and the first signal line 130. For example, referring to Figure 4, two conductive portions 150 are disposed on either side of the second signal line 140 to shield the data signal, thereby preventing the data signal from affecting the coupling capacitance between the first electrodes.

[0103] In some examples, as shown in Figures 3, 4, and 6 to 10, at least part of the conductive portion includes a first conductive portion 151 extending along the arrangement direction of the plurality of first signal lines 130 and a second conductive portion 152 extending along the arrangement direction of the plurality of second signal lines 140. For example, the first conductive portion 151 extends along the X direction, and the second conductive portion 152 extends along the Y direction, and the first conductive portion 151 and the second conductive portion 152 are integrally provided.

[0104] In some examples, as shown in Figures 3, 4, and 6 to 10, along a direction perpendicular to the first base substrate 110, the first conductive portion 151 does not overlap with the second signal line 140, and both the first conductive portion 151 and the second conductive portion 152 overlap with the first electrode 120 to form a storage capacitor.

[0105] For example, as shown in FIG. 4 , along a direction perpendicular to the first base substrate, the electrode connecting portion 1220 of the first electrode 120 overlaps with the first conductive portion 131 .

[0106] For example, as shown in Figures 3 and 4, two first conductive portions 151 and a second signal line 140 are disposed between the centers of two adjacent pixel regions 134 arranged along the Y direction. In a direction perpendicular to the first substrate 110, the second signal line 140 does not overlap with the two first conductive portions 151, and the orthographic projections of the two conductive portions 151 on the first substrate 110 are located on either side of the orthographic projection of the second signal line 140 on the first substrate 110 in the Y direction. For example, in a direction perpendicular to the first substrate 110, both first conductive portions 151 overlap with the first electrode 120 to increase storage capacitance. Of course, the embodiments of the present disclosure are not limited to this, and only one first conductive portion that does not overlap with the second signal line may be disposed between two adjacent pixel regions arranged along the Y direction.

[0107] For example, as shown in FIG6 , a second conductive portion 152 is provided between adjacent first signal lines 130 to reduce the impact on the aperture ratio of the display device. For example, the second conductive portion 152 includes a wide protrusion 153 to further increase the overlapping area between the conductive portion and the first electrode to increase the storage capacitance.

[0108] For example, as shown in Figure 4, the first display substrate also includes a thin film transistor 170, the first signal line 130 is connected to the gate of the thin film transistor 170 to control the opening or closing of the thin film transistor 170, the first electrode 120 is connected to one of the source and drain of the thin film transistor 170, and the second signal line 140 is connected to the other of the source and drain of the thin film transistor 170. The second signal line 140 inputs the voltage signal required for the display image to the first electrode 120 through the thin film transistor 170 to realize the display of the display device.

[0109] 7 shows the semiconductor layer 05 . For example, as shown in FIG4 and FIG7 , the semiconductor layer 05 is located on a side of the first signal line 130 away from the first substrate and overlaps with the first signal line 130 to serve as an active layer of the thin film transistor 170 .

[0110] FIG8 shows the film layer where the second signal line 140 is located. For example, as shown in FIG4 and FIG8 , the thin film transistor 170 includes a first electrode 142 and a second electrode 143 . The first electrode 142 of the thin film transistor 170 is electrically connected to the first electrode 120 , and the second electrode 143 of the thin film transistor 170 is electrically connected to the second signal line 140 , such that the two are integrated into a structure.

[0111] Figure 9 shows a via in the insulating layer between the film layer where the second signal line is located and the film layer where the first electrode is located. For example, as shown in Figures 4, 6, 8, 9 and 10, the first display substrate also includes a conductive structure 141 arranged in the same layer as the second signal line 140, and the conductive structure 141 is electrically connected to the first electrode 120 through a via 06 provided on the insulating layer. For example, in a direction perpendicular to the first base substrate, the conductive structure 141 overlaps with the protruding block 153 to form a storage capacitor while reducing the impact on the aperture ratio of the display device. For example, the electrode connecting portion 1220 located in the middle area of ​​the first electrode 120 has a portion with a larger width, which is configured to be electrically connected to the conductive structure 141 through the via 06.

[0112] For example, as shown in FIG. 4 , FIG. 6 , FIG. 8 and FIG. 9 , the first electrode 120 is electrically connected to the first electrode 142 of the thin film transistor 170 through the via hole 07 .

[0113] In some examples, as shown in Figures 3, 6, 9, and 10, the first display substrate further includes a connection structure 160 connecting the conductive portions 150 located on both sides of the first signal line 130. The connection structure 160 is formed from the same layer and material as the first electrode 120 and is insulated. The connection structure 160 overlaps the first signal line 130 in a direction perpendicular to the first base substrate, and the overlapping portion of the connection structure 160 and the first signal line 130 includes a first notch 161. Providing the first notch in the overlapping portion of the connection structure and the first signal line helps minimize the capacitance generated between the connection structure and the first signal line.

[0114] For example, as shown in Figures 3, 6, 9, and 10, the connection structure 160 is electrically connected to the connection pad 154 of the conductive portion 150 through a via 08 that penetrates the insulating layer between the first electrode 120 and the second signal line 140 and the insulating layer between the second signal line 140 and the first signal line 130, thereby electrically connecting the conductive portion located between adjacent signal lines. For example, a common signal, such as the same signal as that on the second electrode, can be input to the conductive portion.

[0115] In some examples, as shown in Figures 4 and 10, a straight line extending along the second direction passes through the first electrode 120 and the connecting structure 160, and the first electrode 160 is provided with a second notch 1206 to avoid the connecting structure 160. The second notch 1206 is formed by the electrode connecting portion 1220 being recessed toward one side of the strip electrode 1210. For example, the orthographic projection of the first electrode 120 on the straight lines extending along the X and Y directions overlaps with the orthographic projection of the connecting structure 160 on the corresponding straight lines. To avoid interference between the first electrode 120 and the connecting structure 160, the edge of the first electrode 120 is configured to have the shape of the second notch 1206.

[0116] For example, as shown in FIG4 and FIG10 , the first display substrate includes a plurality of sub-pixels of different colors, and only the first electrode 120 of the sub-pixel of one color is provided with the second notch 1206 to reduce the impact on the aperture ratio of the display device.

[0117] Figure 11 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure. Figures 12A and 12B are schematic diagrams of the layout structure of the film layer where the first electrode shown in Figure 11 is located in different examples. The second display substrate in the display device shown in Figures 11 and 12A, and the other film layers in the first display substrate except the layer where the first electrode is located can have the same features as the corresponding structures in the display device shown in Figures 3 to 10, and will not be repeated here. The width of the strip electrodes, the width of the first gap, the width of the second gap, and the inclination angle of the strip electrodes in the first electrode in the display device shown in Figures 11 and 12A can have the same features as the corresponding structures in the display device shown in Figures 3 to 10, and will not be repeated here.

[0118] The first electrode shown in Figures 11 and 12A differs from the first electrode shown in Figures 4 and 10 in that at least one sub-electrode 1200 includes a ring-shaped electrode connecting portion 1220 surrounding a plurality of strip-shaped electrodes 1210. The ring-shaped electrode connecting portion 1220 includes an opening 1222, and the opening 1222 exposes at least one end of a portion of the strip-shaped electrodes 1210. For example, the ring-shaped electrode connecting portion 1220 is a non-closed ring. For example, a portion of the first gap 121 in the sub-electrode 1200 is connected to the gap between the first electrode 120 and the signal line (such as the first signal line 130 and the second signal line 140) through the opening 1222, while another portion of the first gap 121 is not connected to the gap between the first electrode 120 and the signal line.

[0119] The display device provided by the present disclosure adjusts the deflection direction of the liquid crystal molecules corresponding to the edge of the strip electrode by configuring the electrode connection portion to expose at least a portion of one end of the strip electrode. Compared with the case where a closed ring electrode connection portion is provided at the edge of the strip electrode, this facilitates moving the dark lines away from the center of the pixel area, for example, moving the dark lines away from the area used for display so that the dark lines overlap with the black matrix as much as possible, thereby improving the transmittance of the display device.

[0120] In some examples, as shown in FIG11 and FIG12A , within a same pixel region 134, multiple sub-electrodes 1200 are arranged along one of a first direction and a second direction, and the openings 1222 expose only one end of a portion of the strip electrodes 1210. For example, multiple sub-electrodes 1200 are arranged along the X direction, each sub-electrode 1200 includes N strip electrodes, and the number of strip electrodes 1210 exposed by the openings 1222 of the sub-electrode 1200 is no greater than N / 2.

[0121] For example, as shown in Figures 11 and 12A , in the same sub-electrode 1200, both ends of some strip electrodes 1210 are connected to the electrode connecting portion 1220, while only one end of another strip electrode 1210 is connected to the electrode connecting portion 1220. For example, in at least one sub-electrode 1200, each strip electrode 1210 is connected to the electrode connecting portion 1220 surrounding the second gap 122.

[0122] For example, as shown in Figure 11 , along a direction perpendicular to the first substrate, the strip electrode 1210 of at least one sub-electrode 1200 overlaps with the first conductive portion 151, and the overlapping portion can form a storage capacitor. For example, along a direction perpendicular to the first substrate, one end of the strip electrode 1210 in the same sub-electrode 1200 overlaps with the first conductive portion 151, while the other end does not overlap with the first conductive portion 151, and the electrode connection portion 1220 connected to the other end overlaps with the first conductive portion 151.

[0123] In some examples, as shown in Figures 11 and 12A, the outline of at least one sub-electrode 1200 includes a polygon, and the annular electrode connecting portion 1220 surrounds at least two sides of the polygon. The outline of the sub-electrode described above can refer to the boundary of the sub-electrode, such as if at least one side of the corresponding area of ​​the sub-electrode includes an open area. For example, the annular electrode connecting portion 1220 surrounds at least three sides of the polygon.

[0124] For example, as shown in Figures 11 and 12A, at least one sub-electrode 1200 has a quadrilateral shape, with electrode connecting portions 1220 disposed on three sides of the quadrilateral and an opening 1222 disposed on another side. The quadrilateral may be substantially quadrilateral, such as having four rounded corners or straight angles.

[0125] For example, as shown in Figures 11 and 12A, at least two sub-electrodes 1200 in the same first electrode 120 have different outline shapes. For example, at least two sub-electrodes 1200 in the same first electrode 120 have the same outline shape. For example, in the same first electrode 120, each sub-electrode 1200 includes an opening 1222. For example, in the same first electrode 120, at least one sub-electrode 1200 does not include an opening 1222. For example, each first electrode 120 includes an opening 1222. For example, some first electrodes 120 include an opening 1222, while some first electrodes 120 do not.

[0126] 11 and 12A , in the same first electrode 120 , at least two sub-electrodes 1200 include openings 1222 of the same size in the X direction. For example, in the same first electrode 120 , at least two sub-electrodes 1200 include openings 1222 of different sizes in the X direction.

[0127] The display device provided by the present disclosure can adjust the position and size of the opening of the sub-electrode according to the position and degree of dark lines in the same pixel area during display, as well as the position and degree of dark lines in different pixel areas, thereby specifically setting the position of the opening to improve the transmittance of the display device.

[0128] In some examples, as shown in FIG11 and FIG12A , the same pixel region 134 of at least one pixel region 134 includes a first sub-electrode 1201 and a second sub-electrode 1202 that are adjacent to each other, with the first sub-electrode 1201 being close to an edge of the pixel region 134 and the second sub-electrode 1202 being close to the center of the pixel region 134. For example, the second sub-electrode 1202 is located between the first sub-electrode 1201 and the center of the pixel region 134.

[0129] In some examples, as shown in Figures 11 and 12A, the orientation of the opening 1222 of the annular electrode connecting portion 1220 in the first sub-electrode 1201 is different from the orientation of the opening 1222 of the annular electrode connecting portion 1220 in the second sub-electrode 1202. The orientation of the opening refers to the direction of the opening relative to the center of the sub-electrode in which it is located. For example, an opening facing right means the opening is located to the right of the center of the sub-electrode, and an opening facing upward means the opening is located above the center of the sub-electrode. Here, rightward may refer to the direction indicated by the arrow in the Y direction in the figure, and upward may refer to the direction indicated by the arrow in the X direction in the figure. The center of the sub-electrode refers to the geometric center of the sub-electrode.

[0130] Since the positions of the dark lines generated at different locations in the pixel area are different, adjusting the opening direction of the sub-electrode according to the position of the dark lines is beneficial to moving the dark lines generated in the pixel area to the side away from the center of the pixel area so as to move the dark lines as close to the black matrix as possible, thereby improving the transmittance of the display device.

[0131] For example, as shown in Figures 11 and 12A , the openings 1222 of at least two sub-electrodes 1200 in the same first electrode 120 have different orientations. For example, the same first electrode 1200 includes two sub-electrodes 1200 with the same opening orientation. For example, the openings 1222 of the two sub-electrodes 1200 located closest to the center of the same first electrode 120 have the same orientation.

[0132] For example, as shown in FIG. 11 and FIG. 12A , the openings 1222 in the plurality of sub-electrodes 1200 arranged along the Y direction are all oriented in the same direction so as to move the dark lines in the same direction.

[0133] In some examples, as shown in Figures 11 and 12A, at least one pixel region 134 includes two first sub-electrodes 1201, and the openings 1222 of the annular electrode connecting portions 1220 of the two first sub-electrodes 1201 are oriented in the same direction. For example, each pixel region 134 includes two first sub-electrodes 1201, and the openings 1222 of the two first sub-electrodes 1201 are oriented in the same direction. For example, at least one pixel region 134 includes two second sub-electrodes 1202, and the openings 1222 of the two second sub-electrodes 1202 are oriented in the same direction.

[0134] For example, as shown in FIG11 and FIG12A , the same first electrode 120 includes four sub-electrodes 1200 arranged along the X direction. The four sub-electrodes 1200 are sequentially arranged along the X direction as a first sub-electrode 1201, a second sub-electrode 1202, a second sub-electrode 1202, and a first sub-electrode 1201. For example, the arrangement direction of the strip electrodes in the first sub-electrode 1200 is the same as the arrangement direction of the strip electrodes in the third sub-electrode 1200, and the arrangement direction of the strip electrodes in the second sub-electrode 1200 is the same as the arrangement direction of the strip electrodes in the fourth sub-electrode 1200.

[0135] In some examples, as shown in Figures 11 and 12A, the first sub-electrode 1201 and the second sub-electrode 1202 are arranged along a first direction, and the orientation of the opening 1222 of the annular electrode connecting portion 1220 in the first sub-electrode 1201 is opposite to the orientation of the opening 1222 of the annular electrode connecting portion 1220 in the second sub-electrode 1202.

[0136] For example, as shown in Figures 11 and 12A, the opening 1222 in the first sub-electrode 1201 faces left, so that the dark lines corresponding to the first sub-electrode 1201 move to the left, such as moving to the side close to a second signal line 140; the opening 1222 in the second sub-electrode 1202 faces right, so that the dark lines corresponding to the second sub-electrode 1202 move to the right, such as moving to the side close to another second signal line 140, thereby moving the dark lines to both sides to improve the transmittance.

[0137] In some examples, as shown in Figures 11 and 12A, the first sub-electrode 1201 and the second sub-electrode 1202 are arranged along the first direction, and the opening 1222 of the annular electrode connecting portion 1220 in the first sub-electrode 1201 and the opening 1222 of the annular electrode connecting portion 1220 in the second sub-electrode 1202 are both facing the second signal line 140.

[0138] In some examples, as shown in FIG11 and FIG12A , a straight line extending along the first direction passes through an edge of the strip electrode 1210 in the first sub-electrode 1201 exposed by the opening 1222 and an edge of the ring-shaped electrode connecting portion 1220 in the second sub-electrode 1202. For example, the edge of the strip electrode 1210 of the first sub-electrode 1201 is flush with the edge of the electrode connecting portion 1220 of the second sub-electrode 1202 in the X direction, and the edge of the strip electrode 1210 of the second sub-electrode 1202 is flush with the edge of the electrode connecting portion 1220 of the first sub-electrode 1201 in the X direction.

[0139] The display device provided by the present disclosure, by setting the edge of the strip electrode in the first electrode with an opening and the edge of the electrode connecting portion to be flush in the first direction, is conducive to greatly extending the length of the strip electrode, so as to adjust its edge position as far away from the center of the pixel area as possible, while moving the dark line as far as possible outward, ensuring that the distance between the strip electrode and the second signal line meets the process requirements.

[0140] For example, as shown in FIG12A , in the same first electrode 120, the edges of the strip electrodes 1210 of the two first sub-electrodes 1201 are aligned in the first direction, and the edges of the strip electrodes 1210 of the two second sub-electrodes 1202 are aligned in the first direction. For example, in the same first electrode 120, the edges of the electrode connecting portions 1220 of the two first sub-electrodes 1201 are aligned in the first direction, and the edges of the electrode connecting portions 1220 of the two second sub-electrodes 1202 are aligned in the first direction.

[0141] For example, the connection structure 160 shown in FIG. 12A may have the same features as the connection structure 160 in the display device shown in FIG. 3 to FIG. 10 , and details thereof will not be repeated here.

[0142] For example, Figure 12A schematically shows that each second gap is surrounded by the electrode connection portion, but is not limited to this. At least one second gap may not be surrounded by the electrode connection portion, such as at least one second gap may be connected to the space between the electrode connection portion and the signal line to specifically weaken the interdomain dark stripes.

[0143] The difference between Figure 12B and Figure 12A is that the electrode connecting portion 1220 in the second sub-electrode 1202 is a closed annular structure, such as the strip electrodes 1210 in the second sub-electrode 1202 are all surrounded by the electrode connecting portion 1220, while the electrode connecting portion 1220 of the first sub-electrode 1201 is a non-closed annular structure, such as the electrode connecting portion 1220 of the first sub-electrode 1201 has an opening design, and the opening can be directed toward the first signal line or the second signal line, and the embodiments of the present disclosure do not limit this.

[0144] FIG13 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example of an embodiment of the present disclosure. FIG14 is a schematic diagram of the layout structure of the film layer where the first electrode shown in FIG13 is located. The second display substrate in the display device shown in FIG13 and FIG14 and the other film layers in the first display substrate except the layer where the first electrode is located can have the same features as the corresponding structures in the display device shown in FIG3 to FIG10, and will not be repeated here. The width of the strip electrodes, the width of the first gap, the width of the second gap, and the inclination angle of the strip electrodes in the first electrode in the display device shown in FIG13 and FIG14 can have the same features as the corresponding structures in the display device shown in FIG3 to FIG10, and will not be repeated here.

[0145] The first electrode shown in Figures 13 and 14 differs from the first electrode shown in Figures 11 and 12A in that the opening 1222 of the annular electrode connecting portion 1220 in the first sub-electrode 1201 is oriented differently. For example, except for the orientation of some openings 1222 in the first electrode 120 shown in Figures 13 and 14 being different from the orientation of the opening 1222 in the first electrode 120 shown in Figures 11 and 12A, other features may be the same and are not further described here.

[0146] In some examples, as shown in Figures 13 and 14, the first sub-electrode 1201 and the second sub-electrode 1202 are arranged along a first direction, the opening 1222 of the annular electrode connecting portion 1220 in the first sub-electrode 1201 is oriented towards the first signal line 130, and the opening 1222 of the annular electrode connecting portion 1220 in the second sub-electrode 1202 is oriented towards the second signal line 140.

[0147] For example, as shown in Figures 13 and 14, the opening 1222 of the first sub-electrode 1201 is facing upward or downward to move the dark line upward or downward, such as in a direction close to the first signal line 130; the opening 1222 of the second sub-electrode 1202 is facing right to move the dark line to the right, such as in a direction close to the second signal line 140, thereby improving the transmittance of the display device.

[0148] For example, as shown in Figures 13 and 14, the first electrode 120 includes four sub-electrodes 1200 arranged along the X direction, the openings 1222 of the two first sub-electrodes 1201 on both sides are facing upward and downward, respectively, and the openings 1222 of the two second sub-electrodes 1202 in the middle are both facing right, so as to move the dark lines upward, downward and to the right.

[0149] For example, as shown in Figures 13 and 14, the edge of the strip electrode 1210 of the second sub-electrode 1202 is flush with the edge of the electrode connecting portion 1220 of the first sub-electrode 1201 in the X direction, so as to greatly extend the length of the strip electrode, adjust its edge position as far away from the center of the pixel area as possible, move the dark line outward as much as possible, and ensure that the distance between the strip electrode and the second signal line meets the requirements.

[0150] Of course, the embodiments of the present disclosure are not limited to this, and the opening directions of the first electrodes shown in Figures 12A and 14 can also be combined, such as the first electrode includes two first sub-electrodes, the opening of the annular electrode connecting portion in one of the two first sub-electrodes faces the first signal line, and the opening of the annular electrode connecting portion in the other of the two first sub-electrodes faces the second signal line; or, in the same first sub-electrode, a part of the same opening faces the first signal line, and the other part faces the second signal line.

[0151] For example, as shown in Figures 3 to 14 , in two adjacent sub-electrodes 1200 arranged in the X direction, at least some of the strip electrodes 1210 in the two sub-electrodes 1200 are symmetrically distributed about a straight line extending in the Y direction. For example, the strip electrodes 1210 in the adjacent first sub-electrode 1201 and second sub-electrode 1202 are symmetrically distributed about the second gap 122. For example, the strip electrodes 1210 in the adjacent second sub-electrodes 1202 are symmetrically distributed about the second conductive portion 151.

[0152] For example, as shown in FIG. 3 to FIG. 14 , the same first electrode 120 includes two second gaps 122 , and two second sub-electrodes 1202 are disposed between the two second gaps 122 .

[0153] Figure 15 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example embodiment of the present disclosure. Figure 16 is a schematic diagram of the layout structure of the film layer where the first electrode is located shown in Figure 15. The second display substrate and the film layers of the first display substrate other than the layer where the first electrode is located in the display devices shown in Figures 15 and 16 can have the same features as the corresponding structures in the display devices shown in Figures 3 to 10, and will not be repeated here.

[0154] In some examples, as shown in Figures 15 and 16 , within the same pixel region 134, multiple sub-electrodes 1200 are arrayed along the first direction and the second direction, with second gaps 122 provided between adjacent sub-electrodes 1200 arranged along the first direction, and second gaps 122 provided between adjacent sub-electrodes 1200 arranged along the second direction. The width of the strip electrodes and their tilt angle selection ranges, the width of the first gap, the width of the second gap, and the relationship between the first gap, the second gap, and the width of the strip electrodes in the display devices shown in Figures 15 and 16 can be similar to the corresponding structures in the display devices shown in Figures 3 to 10 , and are not further described here.

[0155] For example, Figure 15 schematically illustrates the alignment direction 18 of the alignment film in the second display substrate, as indicated by the dashed arrow. This alignment direction, in conjunction with the tilt angle of the strip electrodes, adjusts the multi-domain display of the liquid crystal molecules. Figure 15 shows the liquid crystal in a state of deflection caused by the application of an electric field. For example, this alignment direction forms a certain angle with the extension direction of the strip electrodes, such as an angle greater than 0 degrees and less than 45 degrees. Figure 15 also schematically illustrates the position of dark lines 20, such as the cross-shaped dark lines 20. The alignment film material in the first display substrate of the display device shown in Figure 15 has not undergone alignment treatment.

[0156] The display device provided by the embodiment of the present disclosure is advantageous in controlling the multi-domain display of liquid crystal molecules in the liquid crystal layer by disposing multiple sub-electrodes in the same pixel area, and each sub-electrode includes multiple strip electrodes. The problem of inter-domain liquid crystal molecule deflection disorder is alleviated by the combined action of an alignment film that controls the pre-tilt angle of the liquid crystal molecules, strip electrodes with different extension directions, and a second gap that is not connected to the first gap provided between adjacent sub-electrodes, thereby facilitating the reduction of inter-domain dark lines and improving the light transmittance of the display device.

[0157] For example, as shown in FIG. 15 and FIG. 16 , four second gaps 122 are provided in the same first electrode 120 , and electrode connecting portions 1220 are provided between the four second gaps 122 , as if different second gaps 122 in the same first electrode 120 are not connected.

[0158] For example, as shown in Figures 15 and 16 , the second gaps 122 in the same first electrode 120 are shaped like a cross. For example, the electrode connecting portion 1220 between the plurality of second gaps 122 in the same first electrode 120 includes a structure 123, which is configured to be electrically connected to the conductive structure 141 shown in Figure 8 .

[0159] For example, as shown in FIG15 and FIG16 , in the same first electrode 120 , the strip electrodes 1210 in adjacent sub-electrodes 1200 arranged along the X direction are symmetrically distributed, and the strip electrodes 1210 in adjacent sub-electrodes 1200 arranged along the Y direction are symmetrically distributed.

[0160] For example, as shown in FIG. 15 and FIG. 16 , in the same first electrode 120 , the strip electrodes 1210 in the plurality of sub-electrodes 1200 are distributed in a divergent manner with the center of the first electrode 120 as the center.

[0161] In some examples, as shown in FIG. 15 and FIG. 16 , at least one sub-electrode 1200 includes a closed ring-shaped electrode connecting portion 1220 surrounding the plurality of strip-shaped electrodes 1210 .

[0162] For example, as shown in FIG. 15 and FIG. 16 , in a direction perpendicular to the first base substrate, the electrode connecting portion 1220 overlaps with the first conductive portion 151 , and the strip electrode 1210 does not overlap with the first conductive portion 151 .

[0163] Figure 17 is a schematic diagram of a partial planar structure of a first display substrate provided according to another example embodiment of the present disclosure. Figure 18 is a schematic diagram of the layout structure of the film layer where the first electrode is located shown in Figure 17. The second display substrate and the film layers of the first display substrate other than the layer where the first electrode is located in the display devices shown in Figures 17 and 18 can have the same features as the corresponding structures in the display devices shown in Figures 3 to 10, and will not be repeated here.

[0164] The display device shown in Figures 17 and 18 differs from the display device shown in Figures 15 and 16 in that more than 90% of the electrode connecting portion 1220 is located between the multiple strip electrodes 1210 of the adjacent sub-electrodes 1200 in the same pixel region 134. For example, more than 95% of the electrode connecting portion 1220 is located between the multiple strip electrodes 1210 of the adjacent sub-electrodes 1200 in the same pixel region 134. For example, the strip electrodes 1210 are not surrounded by the electrode connecting portion 1220.

[0165] 17 and 18 , in the same first electrode 120 , at least some of the strip electrodes 1210 are connected to the electrode connecting portion 1220 at only one end.

[0166] For example, as shown in FIG. 17 and FIG. 18 , along a direction perpendicular to the first display substrate, the strip electrodes 1210 of the same first electrode 120 overlap with the first conductive portion 151 , and the electrode connecting portion 1220 includes a portion overlapping with the first conductive portion 151 .

[0167] For example, as shown in FIG18 , at least one second gap 122 is not completely surrounded by the electrode connection portion 1220. For example, at least one second gap 122 may be connected to the space between the first electrode and the signal line. By configuring at least one second gap as a non-enclosed gap, the deflection direction of the liquid crystal at the edge of the first electrode is adjusted, and the phenomenon of liquid crystal deflection disorder is alleviated, thereby reducing dark lines and improving the transmittance of the display device.

[0168] For example, as shown in FIG. 18 , each second gap 122 is a non-enclosed gap, and one end of each second gap 122 extends to the structure 123 .

[0169] Figure 19 is a schematic diagram of a partial planar structure of a display device according to another embodiment of the present disclosure. Figure 20 is a schematic diagram of the layout structure of the film layer where the first electrode is located as shown in Figure 19.

[0170] The second display substrate and other film layers in the first display substrate, except for the layer containing the first electrode, in the display devices shown in Figures 19 and 20 can have the same features as the corresponding structures in the display devices shown in Figures 3 to 10. The display device includes the first display substrate and the second display substrate shown in Figure 3, as well as a liquid crystal layer located between the first and second display substrates. The first display substrate includes a first base substrate, a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate. The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction, with the first direction and the second direction intersecting. The second display substrate is located on a side of the plurality of first electrodes away from the first base substrate. The second display substrate includes a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersecting to define a plurality of pixel regions, and the first electrodes in different pixel regions are insulated from each other.

[0171] As shown in Figures 19 and 20, in at least part of the pixel area 134, the first electrode 120 in the same pixel area 134 includes a plurality of electrically connected sub-electrodes 1200, each sub-electrode 1200 includes a plurality of strip electrodes 1210, and a first gap 121 is provided between adjacent strip electrodes 1210 in each sub-electrode 1200; the extension directions of the strip electrodes 1210 located in adjacent sub-electrodes 1200 are respectively parallel to the first direction and the second direction, such as the X direction and the Y direction, and the first electrode 120 also includes a closed annular electrode connecting portion 1220 of the plurality of strip electrodes 1210 surrounding each sub-electrode 1200.

[0172] For example, Figure 19 schematically illustrates that the alignment direction 18 of the alignment film in the second display substrate is the direction indicated by the dotted arrow. This alignment direction is coordinated with the inclination angle of the strip electrodes to adjust the multi-domain display of the liquid crystal molecules. Figure 19 also schematically illustrates the position of the dark lines 20. As shown in Figure 19, the dark lines 20 are cross-shaped, indicating that the liquid crystal is in a state of deflection after an electric field is applied. For example, there is a certain angle between this alignment direction and the extension direction of the strip electrodes. This angle can be 80 to 100 degrees, such as 90 degrees. For example, the alignment material layer in the first display substrate in this embodiment has not undergone alignment treatment, that is, no alignment is performed on the liquid crystal deflection.

[0173] In the display device provided by the embodiment of the present disclosure, by providing a plurality of sub-electrodes including strip electrodes in the first electrode, the orientation direction of the orientation film in each display substrate is matched with the extension direction of the strip electrodes in different sub-electrodes, and the electrode connection portion is provided as a closed ring, which is beneficial to alleviate the deflection disorder of liquid crystal molecules at the boundary of adjacent sub-electrodes, thereby reducing dark lines and improving the transmittance of the display device.

[0174] In some examples, as shown in Figures 19 and 20, in at least one pixel region 134, the same pixel region 134 includes four sub-electrodes 1200 arranged in an array along the first direction and the second direction. For example, the areas of different sub-electrodes 1200 are substantially the same.

[0175] There are a few points to note:

[0176] (1) The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures can refer to general designs.

[0177] (2) In the absence of conflict, features in the same embodiment and different embodiments of the present disclosure may be combined with each other.

[0178] The foregoing description is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. The scope of protection of the present disclosure is determined by the appended claims.

Claims

1. A display device, comprising: A first display substrate includes a first base substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate, wherein an arrangement direction of the plurality of first signal lines intersects an arrangement direction of the plurality of second signal lines; a second display substrate, located on a side of the plurality of first electrodes away from the first base substrate, the second display substrate comprising a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate; a liquid crystal layer located between the first display substrate and the second display substrate, The plurality of first signal lines and the plurality of second signal lines are arranged to intersect with each other to define a plurality of pixel areas, and the first electrodes in different pixel areas are insulated from each other; In at least some pixel regions, the first electrode in the same pixel region includes a plurality of electrically connected sub-electrodes, each sub-electrode includes a plurality of strip electrodes and an electrode connecting portion connected to the plurality of strip electrodes, a first gap is provided between adjacent strip electrodes in each sub-electrode, and extension directions of the strip electrodes in adjacent sub-electrodes intersect; A second gap is provided between at least two adjacent sub-electrodes in each pixel region, the electrode connecting portion is provided between the second gap and the first gap, and at least a portion of the second gap is surrounded by the first electrode.

2. The display device according to claim 1, wherein At least one sub-electrode includes a non-closed annular electrode connecting portion surrounding the plurality of strip-shaped electrodes, the electrode connecting portion includes an opening, and the opening exposes at least one end of a portion of the strip-shaped electrodes.

3. The display device according to claim 2, wherein: The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction; In the same pixel area, the plurality of sub-electrodes are arranged along one of the first direction and the second direction, and the opening only exposes one end of a portion of the strip-shaped electrode.

4. The display device according to claim 3, wherein An outline shape of the at least one sub-electrode includes a polygon, and the electrode connecting portion surrounds at least two sides of the polygon.

5. The display device according to claim 1, wherein Two adjacent sub-electrodes in the same pixel area of at least one pixel area include a non-enclosed annular electrode connecting portion surrounding the plurality of strip electrodes, the electrode connecting portion includes an opening, and the opening exposes one end of a portion of the strip electrodes; A pixel region of the at least one pixel region includes a first sub-electrode and a second sub-electrode that are adjacent to each other, wherein the first sub-electrode is close to an edge of the pixel region, and the second sub-electrode is close to a center of the pixel region; The orientation of the opening of the electrode connecting portion in the first sub-electrode is different from the orientation of the opening of the electrode connecting portion in the second sub-electrode. The display device according to claim 5 , wherein: The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction; The first sub-electrode and the second sub-electrode are arranged along the first direction, the opening of the electrode connecting portion in the first sub-electrode faces the first signal line, and the opening of the electrode connecting portion in the second sub-electrode faces the second signal line.

7. The display device according to claim 5, wherein The opening of the electrode connecting portion in the first sub-electrode is oriented in an opposite direction to the opening of the electrode connecting portion in the second sub-electrode.

8. The display device according to claim 5, wherein The plurality of first signal lines are arranged along a first direction, the plurality of second signal lines are arranged along a second direction, and the first sub-electrodes and the second sub-electrodes are arranged along the first direction; The at least one pixel region includes two first sub-electrodes, and the openings of the electrode connecting portions in the two first sub-electrodes are oriented in the same direction, or the opening of the electrode connecting portion in one of the two first sub-electrodes is oriented toward the first signal line, and the opening of the electrode connecting portion in the other of the two first sub-electrodes is oriented toward the second signal line.

9. The display device according to claim 7, wherein: The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction; The first sub-electrode and the second sub-electrode are arranged along the first direction, the opening of the electrode connecting portion in the first sub-electrode and the opening of the electrode connecting portion in the second sub-electrode are both facing the second signal line, and a straight line extending along the first direction passes through the edge of the strip electrode in the first sub-electrode exposed by the opening and the edge of the electrode connecting portion in the second sub-electrode.

10. The display device according to any one of claims 1 to 9, wherein: The at least one pixel area includes four sub-electrodes arranged along one of the arrangement directions of the multiple first signal lines and the arrangement directions of the multiple second signal lines. Among the four sub-electrodes, the second gap is set between the first sub-electrode and the second sub-electrode, and the second gap is set between the third sub-electrode and the fourth sub-electrode.

11. The display device according to claim 1, wherein The plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction; In the same pixel area, the multiple sub-electrodes are arranged in an array along the first direction and the second direction, and the second gap is set between adjacent sub-electrodes arranged along the first direction, and the second gap is set between adjacent sub-electrodes arranged along the second direction.

12. The display device according to claim 11, wherein At least one sub-electrode includes a closed ring-shaped electrode connecting portion surrounding the plurality of strip-shaped electrodes.

13. The display device according to claim 11, wherein More than 90% of the electrode connecting portions are located between the plurality of strip electrodes of adjacently arranged sub-electrodes in the same pixel region.

14. The display device according to any one of claims 1 to 13, wherein: An included angle between the strip electrodes and one of the arrangement directions of the plurality of first signal lines and the arrangement directions of the plurality of second signal lines is 30° to 80°.

15. The display device according to any one of claims 1 to 14, wherein: The width of the strip electrodes is 2 to 4 micrometers, and the width of the first gap is 2 to 4 micrometers.

16. The display device according to any one of claims 1 to 15, wherein: The width of the second gap is 2 to 3.6 micrometers, and the ratio of the width of the second gap to the width of the strip electrode is 0.5 to 2.

17. The display device according to any one of claims 1 to 15, wherein: One of the first display substrate and the second display substrate includes an alignment film that has undergone alignment treatment, and the alignment film is located between the liquid crystal layer and the second electrode; or both the first display substrate and the second display substrate include an alignment film that has undergone alignment treatment.

18. The display device according to any one of claims 1 to 17, wherein: The first display substrate also includes a plurality of conductive portions that are insulated and arranged in the same layer as the plurality of first signal lines, at least some of the conductive portions include a first conductive portion extending along the arrangement direction of the plurality of first signal lines and a second conductive portion extending along the arrangement direction of the plurality of second signal lines. In a direction perpendicular to the first base substrate, the first conductive portion does not overlap with the second signal line, and both the first conductive portion and the second conductive portion overlap with the first electrode.

19. The display device according to claim 18, wherein The first display substrate also includes a connecting structure connecting the conductive parts located on both sides of the first signal line. The connecting structure is in the same layer as the first electrode and is insulated. Along a direction perpendicular to the first base substrate, the connecting structure overlaps with the first signal line, and the overlapping portion of the connecting structure and the first signal line includes a first notch.

20. The display device according to claim 19, wherein A straight line extending along the second direction passes through the first electrode and the connection structure, and the first electrode is provided with a second notch to avoid the connection structure. The second notch is formed by the electrode connection portion being recessed toward one side of the strip electrode.

21. A display device comprising: A first display substrate includes a first base substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first base substrate, wherein the plurality of first signal lines are arranged along a first direction, and the plurality of second signal lines are arranged along a second direction, and the first direction intersects the second direction; a second display substrate, located on a side of the plurality of first electrodes away from the first base substrate, the second display substrate comprising a second base substrate and a second electrode located on a side of the second base substrate facing the first display substrate; a liquid crystal layer located between the first display substrate and the second display substrate, The plurality of first signal lines and the plurality of second signal lines are arranged to intersect with each other to define a plurality of pixel areas, and the first electrodes in different pixel areas are insulated from each other; In at least some pixel regions, the first electrode in the same pixel region includes a plurality of electrically connected sub-electrodes, each sub-electrode includes a plurality of strip electrodes, and a first gap is provided between adjacent strip electrodes in each sub-electrode; The extension directions of the strip electrodes located in adjacent sub-electrodes are respectively parallel to the first direction and the second direction, and each sub-electrode further includes a closed annular electrode connecting portion surrounding the plurality of strip electrodes.

22. The display device according to claim 21, wherein In at least one pixel region, the same pixel region includes four sub-electrodes arranged in an array along the first direction and the second direction.

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