Display device

Abstract

A display device includes 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 includes a first electrode, a plurality of first signal lines, and a second signal line; the second display substrate includes a second electrode. The first signal lines and second signal lines are intersected to define pixel regions, and the first electrodes in different pixel regions are insulated from each other. Each first electrode within the same pixel region includes a plurality of electrically connected sub-electrodes, each sub-electrode including a plurality of strip electrodes and an electrode connection portion connected to the strip electrodes. A first gap is provided between adjacent strip electrodes, and the extending 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, and an electrode connection portion is provided between the second gap and the first gap. At least a portion of the second gap is surrounded by the first electrode, which helps to reduce interdomain dark lines and improve the light transmittance of the display device.

Description

Technical Field

[0001] This disclosure relates to a display device. Background Technology

[0002] With the development of liquid crystal display technology, large-size and high-brightness display devices are becoming increasingly popular. Liquid crystal display devices include twisted alignment display mode, planar conversion display mode, and vertical alignment display mode. Vertical alignment display mode, with its advantages such as wide viewing angle and high contrast, can be widely used in large-size display devices. Summary of the Invention

[0003] This disclosure provides a display device, including: a first display substrate, a second display substrate, and a liquid crystal layer located between the first display substrate and the second display substrate. The first display substrate includes a first substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first 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 the side of the plurality of first electrodes away from the first substrate, and the second display substrate includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersected to define a plurality of pixel regions, and the first electrodes in different pixel regions 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 connection portion connected to the plurality of 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 region, the electrode connection 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.

[0004] For example, according to an embodiment of this disclosure, at least one sub-electrode includes a non-closed annular electrode connection portion surrounding the plurality of strip electrodes, the electrode connection portion including an opening, and the opening exposing at least a portion of one end of the strip electrode.

[0005] For example, according to an embodiment of this disclosure, 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; within the same pixel region, the plurality of sub-electrodes are arranged along one of the first direction and the second direction, and the opening exposes only one end of a portion of the strip electrode.

[0006] For example, according to an embodiment of this disclosure, the outline shape of the at least one sub-electrode includes a polygon, and the electrode connection portion surrounds at least two sides of the polygon.

[0007] For example, according to an embodiment of this disclosure, two adjacent sub-electrodes within the same pixel region of at least one pixel region include a non-closed annular electrode connection portion surrounding the plurality of strip electrodes. The electrode connection portion includes an opening, and the opening exposes one end of a portion of the strip electrode. The same pixel region of the at least one pixel region includes a first sub-electrode and a second sub-electrode disposed adjacently. The first sub-electrode is close to the edge of the pixel region, and the second sub-electrode is close to the center of the pixel region. The orientation of the opening of the electrode connection portion in the first sub-electrode is different from the orientation of the opening of the electrode connection portion in the second sub-electrode.

[0008] For example, according to an embodiment of this disclosure, 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 connection portion in the first sub-electrode faces the first signal line, and the opening of the electrode connection portion in the second sub-electrode faces the second signal line.

[0009] For example, according to an embodiment of this disclosure, the orientation of the opening of the electrode connection portion in the first sub-electrode is opposite to the orientation of the opening of the electrode connection portion in the second sub-electrode.

[0010] For example, according to an embodiment of this disclosure, 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-electrode and the second sub-electrode are arranged along the first direction; the at least one pixel region includes two first sub-electrodes, the openings of the electrode connection portions of the two first sub-electrodes have the same orientation, or, the opening of the electrode connection portion of one of the two first sub-electrodes faces the first signal line, and the opening of the electrode connection portion of the other of the two first sub-electrodes faces the second signal line.

[0011] For example, according to an embodiment of this disclosure, 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 connection portion in the first sub-electrode and the opening of the electrode connection portion in the second sub-electrode both face the second signal line, and the 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 connection portion in the second sub-electrode.

[0012] For example, according to an embodiment of this disclosure, the at least one pixel region includes four sub-electrodes arranged along one of the arrangement directions of the plurality of first signal lines and the arrangement directions of the plurality of second signal lines, wherein the second gap is provided between the first sub-electrode and the second sub-electrode, and the second gap is provided between the third sub-electrode and the fourth sub-electrode.

[0013] For example, according to an embodiment of this disclosure, 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; within the same pixel region, the plurality of sub-electrodes are arranged in an array along the first direction and the second direction, and a second gap is provided between adjacent sub-electrodes arranged along the first direction and between adjacent sub-electrodes arranged along the second direction.

[0014] For example, according to an embodiment of this disclosure, at least one sub-electrode includes a closed annular electrode connection portion surrounding the plurality of strip electrodes.

[0015] For example, according to an embodiment of this disclosure, more than 90% of the electrode connection portion is located between the plurality of strip electrodes of the adjacent sub-electrodes in the same pixel area.

[0016] For example, according to an embodiment of this disclosure, the 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°.

[0017] For example, according to an embodiment of this disclosure, the width of the strip electrode is 2 to 4 micrometers, and the width of the first gap is 2 to 4 micrometers.

[0018] For example, according to an embodiment of this 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.

[0019] For example, according to embodiments of this disclosure, one of the first display substrate and the second display substrate includes an alignment film that has undergone alignment treatment, the alignment film being located between the liquid crystal layer and the second electrode; or, both the first display substrate and the second display substrate include alignment films that have undergone alignment treatment.

[0020] For example, according to an embodiment of this disclosure, the first display substrate further includes a plurality of conductive portions disposed on the same layer as and insulated from 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 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.

[0021] For example, according to an embodiment of this disclosure, the first display substrate further includes a connection structure connecting the conductive portions located on both sides of the first signal line. The connection structure is disposed on the same layer as the first electrode and is insulated from it. Along a direction perpendicular to the first substrate, the connection structure overlaps with the first signal line, and the overlapping portion of the connection structure with the first signal line includes a first notch.

[0022] For example, according to an embodiment of this 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. The second notch is formed by the electrode connection portion recessing into the strip electrode side.

[0023] Another embodiment of this disclosure provides a display device, including: a first display substrate, a second display substrate, and a liquid crystal layer located between the first display substrate and the second display substrate. The first display substrate includes a first substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first 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, the first direction intersecting the second direction. The second display substrate is located on the side of the plurality of first electrodes away from the first substrate, and includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersected to define a plurality of pixel regions. The first electrodes in different pixel regions are insulated from each other. In at least some pixel regions, the first electrode within 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 extending directions of the strip electrodes located in adjacent sub-electrodes are parallel to the first direction and the second direction, respectively. Each sub-electrode also includes a closed annular electrode connection portion surrounding the plurality of strip electrodes.

[0024] For example, according to an embodiment of this 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. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0026] Figure 1 This is a schematic diagram of a partial planar structure of a display device.

[0027] Figure 2 for Figure 1 The diagram shows a pixel area when the display device is displaying data.

[0028] Figure 3 This is a partial cross-sectional structural diagram of a display device provided according to an embodiment of the present disclosure.

[0029] Figure 4 for Figure 3 A partial planar structural schematic diagram of the first display substrate in the display device shown.

[0030] Figure 5 for Figure 4 A schematic diagram of a single pixel area displayed on the display device shown.

[0031] Figures 6 to 10 for Figure 5 The diagram shows different film layers in the first display substrate.

[0032] Figure 11 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0033] Figure 12A and Figure 12B for Figure 11 The diagram shows the layout structure of the film layer where the first electrode is located in different examples.

[0034] Figure 13 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0035] Figure 14 for Figure 13 The diagram shows the layout structure of the film layer where the first electrode is located.

[0036] Figure 15 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0037] Figure 16 for Figure 15 The diagram shows the layout structure of the film layer where the first electrode is located.

[0038] Figure 17 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure.

[0039] Figure 18 for Figure 17 The diagram shows the layout structure of the film layer where the first electrode is located.

[0040] Figure 19This is a partial planar structural schematic diagram of a display device provided according to another embodiment of the present disclosure.

[0041] Figure 20 for Figure 19 The diagram shows the layout structure of the film layer where the first electrode is located. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0043] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0044] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include a certain degree of error. Taking into account measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of said value. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component is implied to mean that the component can be one or more, or can be understood as at least one. "At least one" means one or more, and "more" means at least two.

[0045] In this disclosure, "integrated structure" refers to a structure formed by two (or more) interconnected structures through the same deposition process and patterned through the same patterning process, and their materials may be the same or different.

[0046] Figure 1 This is a partial planar structural diagram of a display device. Figure 2 for Figure 1The diagram shows a pixel area when the display device is displaying data.

[0047] like Figure 1 and Figure 2 As shown, the display device includes an array substrate, which includes multiple gate lines 11 and multiple data lines 12. The gate lines 11 extend along the X direction, and the data lines 12 extend along the Y direction. The multiple gate lines 11 and multiple data lines 12 are arranged in an insulated and intersecting manner to define multiple pixel areas.

[0048] For example, such as Figure 1 and Figure 2 As shown, 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 terminals of the thin film transistor 14. The data line 12 is electrically connected to the other of the source and drain terminals of the thin film transistor 14. The data line 11 inputs the voltage signal required for displaying the image to the pixel electrode 13 through the thin film transistor 14 to realize the display of the display device.

[0049] Figure 1 The display device shown also includes a counter substrate, such as a color filter substrate, disposed opposite to the array substrate, and a liquid crystal layer 16 is disposed between the array substrate and the color filter substrate. Figure 1 The solid arrow shown indicates the alignment direction 17 on the alignment film disposed in the array substrate. For example, alignment direction 17 includes two opposite directions parallel to the X direction. Figure 1 The dashed arrows indicate the alignment direction 18 on the alignment film disposed in the color filter substrate. For example, alignment direction 18 includes two opposite directions parallel to the Y direction. The initial alignment direction of the liquid crystal in the liquid crystal layer 16, such as the pretilt angle, is jointly determined by the alignment film in the array substrate and the alignment film in the color filter substrate.

[0050] like Figure 1 As shown, 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. Therefore, the liquid crystal 16 within the same pixel area has four deflection directions under the combined action of the alignment films on both sides, forming four domains. By setting multiple domains in one pixel area, the diversity of liquid crystal rotation directions is increased to alleviate the color shift problem of the display device at large viewing angles.

[0051] like Figure 2 As shown, the display device also includes a black matrix 19 for defining the pixel area 30. For example, the black matrix 19 may be located on the color filter substrate.

[0052] In their research, the inventors of this application discovered that in display devices employing vertical alignment display technology, due to the inconsistent orientation of liquid crystal molecules at the boundaries between domains in multi-domain displays, such as at domain boundaries where liquid crystal molecules are oriented in opposite directions, the liquid crystal molecules become disordered, resulting in… Figure 2 The interdomain dark stripes 20 shown reduce the transmittance of the display device.

[0053] This disclosure provides a display device, including: a first display substrate, a second display substrate, and a liquid crystal layer located between the first display substrate and the second display substrate. The first display substrate includes a first substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first 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 the side of the plurality of first electrodes away from the first substrate, and the second display substrate includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersected to define a plurality of pixel regions, and the first electrodes in different pixel regions 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 connection portion connected to the plurality of 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 region, the electrode connection 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 setting multiple sub-electrodes in the same pixel area, and each sub-electrode includes multiple strip electrodes, with different extension directions of the strip electrodes in different sub-electrodes, multi-domain display can be achieved in the same pixel area. Furthermore, by setting a second gap between two adjacent sub-electrodes, and by setting an electrode connection between the second gap and the first gap, it is possible to prevent the application of an electric field to the edges of the strip electrodes in 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. This reduces the disorder of the deflection direction of liquid crystal molecules between two adjacent sub-electrodes, which is beneficial to weakening inter-domain dark lines and improving the light transmittance of the display device.

[0054] This disclosure provides another display device, 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. The first display substrate includes a first substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first 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, the first direction intersecting the second direction. The second display substrate is located on the side of the plurality of first electrodes away from the first substrate, and includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersected to define a plurality of pixel regions. The first electrodes in different pixel regions are insulated from each other. In at least some pixel regions, the first electrode within 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 extending directions of the strip electrodes located in adjacent sub-electrodes are parallel to the first direction and the second direction, respectively. Each sub-electrode also includes a closed annular electrode connection portion surrounding the plurality of strip electrodes. By providing multiple sub-electrodes, including strip-shaped electrodes, in the first electrode, matching the alignment direction of the alignment film in each display substrate with the extension direction of the strip-shaped electrodes in different sub-electrodes, and setting the electrode connection part as a closed ring, it is beneficial to alleviate the phenomenon of liquid crystal molecule deflection disorder at the boundary of adjacent sub-electrodes, thereby reducing dark lines and improving the transmittance of the display device.

[0055] The display device provided in the embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0056] Figure 3 This is a partial cross-sectional structural diagram of a display device provided according to an embodiment of the present disclosure. Figure 4 for Figure 3 A partial planar structural schematic diagram of the first display substrate in the display device shown. Figure 5 for Figure 4 A schematic diagram of a single pixel area displayed on the display device shown. Figures 6 to 10 for Figure 5 The diagram shows different film layers in the first display substrate. Figure 3 For along Figure 4 A schematic diagram of the local cross-section structure intercepted by line AA'.

[0057] like Figure 3 and Figure 4As shown, 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 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 substrate 110, wherein the arrangement direction of the plurality of first signal lines 130 intersects the arrangement direction of the plurality of second signal lines 140.

[0058] In some examples, such as Figure 4 As shown, multiple first signal lines 130 extend along a first direction, and multiple second signal lines 140 extend along a second direction. For example, Figure 4 The diagram schematically shows the first direction as the X direction and the second direction as the Y direction, but it is not limited to this; the first and second directions can be interchanged. For example, the first and second directions may intersect. For example, the angle between the first and second directions may be 80 to 100 degrees. For example, the first and second directions may be perpendicular.

[0059] For example, such as Figure 4 As shown, 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 can be a gate line for transmitting a gate signal, and the second signal line 140 can be a data line for transmitting a data signal, but it is not limited thereto, and the first signal line and the second signal line can be interchanged.

[0060] like Figure 4 As shown, the second display substrate 200 is located on the side of the plurality of first electrodes 120 away from the first substrate 110. The second display substrate 200 includes a second substrate 210 and a second electrode 220 located on the side of the second substrate 210 facing the first display substrate 100.

[0061] For example, such as Figure 4 As shown, the first electrode 120 can be a pixel electrode, and the second electrode 220 can be a common electrode. For example, the first electrode 120 and the second electrode 220 can be made of a transparent conductive material. For example, the material of the first electrode 120 may include indium tin oxide (ITO).

[0062] like Figure 3 and Figure 4 As shown, multiple first signal lines 130 and multiple second signal lines 140 are intersected to define multiple pixel areas 134, and the first electrodes 120 in different pixel areas 134 are insulated from each other.

[0063] For example, such as Figure 4As shown, each pixel area 134 is the region containing a sub-pixel, which can also be called a display area, used to display a color of light. For example, the boundary of each pixel area 134 can be the boundary formed 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, multiple pixel areas 134 are arranged in an array along a first direction and a second direction. The center of the aforementioned pixel area refers to the geometric center of the pixel area, which may overlap with the second conductive part 152 (described later).

[0064] like Figure 3 and Figure 4 As shown, in at least a portion of the pixel region 134, the first electrode 120 within the same pixel region 134 includes a plurality of electrically connected sub-electrodes 1200, each sub-electrode 1200 including a plurality of strip electrodes 1210 and an electrode connection portion 1220 connected to the plurality of strip electrodes 1210.

[0065] For example, such as Figure 3 and Figure 4 As shown, each pixel region 134 includes a first electrode 120 comprising a plurality of sub-electrodes 1200. For example, the strip electrode 1210 of each sub-electrode 1200 is electrically connected via an electrode connection portion 1220. For example, at least one end of the strip electrode 1210 is connected to the electrode connection portion 1220.

[0066] For example, such as Figure 3 and Figure 4 As shown, the strip electrode 1210 and the electrode connection portion 1220 can be an integrally formed structure. For example, the multiple sub-electrodes 1200 included in the same first electrode 120 can be an integrally formed structure, or they can be spaced apart and electrically connected through other conductive layers.

[0067] For example, such as Figure 3 and Figure 4 As shown, each sub-electrode 1200 within the same pixel region 134 is located in a domain, and different sub-electrodes 1200 are located in different domains. 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.

[0068] like Figure 3 and Figure 4As shown, in the same pixel area 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, multiple strip electrodes 1210 in each sub-electrode 1200 are arranged in parallel, and the angle between the extension directions of the strip electrodes 1210 in adjacent sub-electrodes 1200 in the same pixel area 134 is 20-90 degrees, such as 30-85 degrees, 40-80 degrees, 45-60 degrees, etc.

[0069] For example, such as Figure 4 As shown, the first gap 121 is strip-shaped. For example, the width of the first gap 121 is equal at all locations.

[0070] For example, such as Figure 3 and Figure 4 As shown, the width ratio of different strip electrodes 1210 in the same sub-electrode 1200 is 0.95 to 1.05, and the width ratio of different first gaps 121 in the same sub-electrode 1200 is 0.95 to 1.05.

[0071] For example, the widths of different strip electrodes 1210 in the same sub-electrode 1200 are equal, and the widths of different first gaps 121 in the same sub-electrode 1200 are equal.

[0072] In some examples, such as Figure 3 and Figure 4 As shown, the width of the strip electrode 1210 is 2–4 micrometers, and the width of the first gap 121 is 2–4 micrometers. For example, the width of the strip electrode 1210 is 2.5–3.5 micrometers, such as 2.8–3.2 micrometers, or 3 micrometers. For example, the width of the first gap 121 is 2.2–3 micrometers, such as 2.4–2.8 micrometers, or 2.6 micrometers.

[0073] For example, the width of the strip electrode 1210 is greater than the width of the first gap 121, which is beneficial to increase the electric field strength. For example, the ratio of the width of the strip electrode 1210 to the width of the first gap 121 is 1.05 to 1.5, such as 1.1 to 1.4, such as 1.15.

[0074] like Figure 3 and Figure 4As shown, in each pixel region 134, a second gap 122 is provided between at least two adjacent sub-electrodes 1200, and an electrode connection 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 and the first gap 121 are not connected.

[0075] The above-mentioned sub-electrode 1200 is Figure 4 and Figure 10 The electrodes circled in the dashed box are multiple sub-electrodes 1200 included in the same first electrode 120, which are connected by an electrode connection part 1220. A second gap 122 can be provided between two adjacent sub-electrodes 1200, or no gap can be provided. An electrode connection part 1220 is provided between the strip electrodes 1210 of adjacent sub-electrodes 1200.

[0076] The display device provided in this disclosure enables multi-domain display in the same pixel area by arranging multiple sub-electrodes in the same pixel area, each sub-electrode including multiple strip electrodes, and the extension directions of the strip electrodes in different sub-electrodes being different. Furthermore, by arranging a second gap between two adjacent sub-electrodes and providing an electrode connection between the second gap and the first gap, it is possible to prevent the application of an electric field to the edges of the strip electrodes in 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. This reduces the disorder of the deflection direction of liquid crystal molecules between two adjacent sub-electrodes, which is beneficial for weakening inter-domain dark lines and improving the light transmittance of the display device.

[0077] For example, the second gap can be as follows Figure 4 The gap shown can extend along the Y direction and may also include multiple sub-gap spaces spaced apart from each other. The multiple sub-gap spaces extend along the Y direction and are arranged in a manner that allows the dimensions of the multiple sub-gap spaces to be the same or different. This allows the size of the sub-gap spaces to be adjusted according to the position of different sub-electrodes in the corresponding pixel area, thereby adjusting the electric field intensity and adjusting the liquid crystal deflection direction to reduce interdomain dark lines.

[0078] In some examples, such as Figure 3 As shown, one of the first display substrate 100 and the second display substrate 200 includes an alignment film 230 configured for alignment processing, the alignment film 230 being 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 after alignment processing, while the first display substrate 100 is provided with a film layer 03 covering the first electrode 120, which has not undergone alignment processing.

[0079] Compared to having alignment films that have undergone alignment treatment in both display substrates, such as Figure 1The display device shown in this disclosure provides an alignment film that has undergone alignment treatment in only one display substrate and an electrode structure with multiple strip electrodes in another substrate. By controlling the pretilt angle of the liquid crystal molecules and the strip electrodes with different extension directions working together, a second gap is provided between adjacent sub-electrodes. This can alleviate the problem of disordered deflection of liquid crystal molecules between domains, which is beneficial to reduce dark lines between domains and improve the light transmittance of the display device.

[0080] Of course, the embodiments disclosed herein are not limited to this, and an alignment film that has undergone alignment treatment may also be provided in the first display substrate.

[0081] In some examples, such as Figure 4 and Figure 10 As shown, 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°.

[0082] For example, such as Figure 4 and Figure 10 As shown, 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°, 45°, 70°, 65° or 75°. For example, the angle between the strip electrode 1210 and the Y direction can be 37°, 45°, 70°, 65° or 75°.

[0083] For example, Figure 4 The alignment direction 18 of the alignment film in the second display substrate is schematically shown as the direction indicated by the dashed arrow. The multi-domain display adjustment of liquid crystal molecules is achieved by coordinating this alignment direction with the tilt angle of the strip electrode. Figure 4 The liquid crystal shown is in its deflected state after an electric field is applied. For example, the alignment direction can be approximately parallel to the extension direction of the strip electrode.

[0084] For example, when the angle between the strip electrode 1210 and the Y direction is 37°, and the polarization direction of the linearly polarized light during the alignment treatment of the aligned film is 45°, Δn is minimized. The smaller the gamma shift, the more the color shift phenomenon can be mitigated. Therefore, the smaller the Δn, the smaller the color shift problem. For example, the liquid crystal in the liquid crystal layer can be a positive liquid crystal, such as having birefringence characteristics, that is, the liquid crystal has different refractive indices ne and no in different directions. The above-mentioned Δn refers to the difference between the refractive indices ne and no; it refers to the different display brightness seen from different viewing angles under different gray levels of brightness, and thus Gamma will also change, i.e., the above-mentioned Gamma shift.

[0085] Figure 4 The position of the dark pattern 20 generated in a pixel area is schematically shown by a dashed line. This position can be displayed as shown in the image when the display device is displaying the image. Figure 5 The simulated transmittance graph is shown below. Relative to... Figure 2 The dark pattern on the display device is shown. Figure 5 In the display device shown, by employing strip electrodes and alignment films to jointly control the multi-domain display of liquid crystal, and by setting a second gap between adjacent sub-electrodes that is not connected to the first gap, the liquid crystal deflection disorder between adjacent sub-electrodes can be alleviated, the width of dark lines can be reduced, and the light transmittance of the display device can be improved, such as relative to... Figure 2 The display device shown. Figure 5 The transmittance of the display device shown has increased by 10%.

[0086] In some examples, such as Figure 3 and Figure 4 As shown, 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 beneficial to adjust the pretilt angle of the liquid crystal molecules to reduce interdomain dark lines, thereby improving the light transmittance of the display device.

[0087] 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.

[0088] In some examples, such as Figure 3 and Figure 4 As shown, the width of the second gap 122 is 2 to 3.6 micrometers. For example, the width of the second gap 122 is 2.2 to 3.5 micrometers. For example, the width of the second gap 122 is 2.5 to 3 micrometers. For example, the width of the second gap 122 is 2.6 micrometers.

[0089] For example, such as Figure 3 and Figure 4 As shown, the widths of the first gap 121 and the second gap 122 are equal to further reduce interdomain dark streaks and improve light transmittance.

[0090] For example, such as Figure 4 As shown, the second gap 122 is strip-shaped. For example, the width of the second gap 122 is equal at all locations.

[0091] For example, such as Figure 4 As shown, one end of the second gap 122 can be flush with one end of the first gap 121 in the X direction, and the other end of the second gap 122 can 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 position of two adjacent domains and reduce the dark lines between domains.

[0092] For example, such as Figure 4 and Figure 10 As shown, the extending direction of the first gap 121 is different from the extending direction of the second gap 122. For example, the angle between the extending directions of the first gap 121 and the second gap 122 can be 30 to 90 degrees. For example, the angle between the extending directions of the first gap 121 and the second gap 122 can be 37 to 75 degrees. For example, the angle between the extending directions of the first gap 121 and the second gap 122 can be 45 to 65 degrees. For example, the angle between the extending directions of the first gap 121 and the second gap 122 can be 50 to 70 degrees.

[0093] In some examples, such as Figure 4 and Figure 10 As shown, at least one pixel region 134 includes four sub-electrodes 1200 arranged along one of the arrangement directions of a plurality of first signal lines 130 and a plurality of second signal lines 140. For example, a pixel region 134 may be a quad domain.

[0094] In some examples, such as Figure 4 and Figure 10 As shown, 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. Through the combined effect of the pretilt angle of the liquid crystal molecules corresponding to different sub-electrodes, the strip-shaped electrode, and the second gap between adjacent sub-electrodes that is not connected to the first gap, the instability of liquid crystal deflection at the boundary between two adjacent domains is reduced, improving the stability of liquid crystal deflection and thus mitigating dark lines.

[0095] For example, a space is provided between the second sub-electrode and the third sub-electrode. Figure 6The conductive part shown can be left without a second gap even if there is a dark pattern at this location.

[0096] For example, such as Figure 4 and Figure 10 As shown, the width of the second gap 122 is less than the average width of the electrode connection portion 1220 between the second sub-electrode 1200 and the third sub-electrode 1200.

[0097] For example, such as Figure 4 and Figure 10 As shown, the outer contour of each electrode 120 includes a ring of electrode connecting portions 1220, the shape of which defines the shape of the electrode 120. For example, the shape of the electrode 120 can be polygonal, such as approximately quadrilateral, or a rounded quadrilateral, or a quadrilateral with four straight corners. For example, the shape of the sub-electrode 1200 can be polygonal, such as approximately quadrilateral.

[0098] For example, in each sub-electrode 1200, each strip electrode 1210 is surrounded by a closed annular electrode connection portion 1220. For example, both ends of each strip electrode 1210 are connected to the electrode connection portion 1220.

[0099] For example, such as Figure 4 and Figure 10 As shown, the second gap 122 is surrounded by the electrode connection portion 1220. For example, the first gap 121 is surrounded by the strip electrode 1210 and the electrode connection portion 1220.

[0100] For example, such as Figure 3 and Figure 4 As shown, the first signal line 130 is located on the first substrate 110, the second signal line 140 is located on the side of the first signal line 130 away from the first 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. A transparent film layer 03 is provided on the side of the first electrode 120 away from the first substrate 110. The film layer 03 can be an alignment material layer that has not undergone alignment treatment, but it is not limited to this. The film layer 03 can also be an alignment film that has undergone alignment treatment.

[0101] In some examples, such as Figure 3 , Figure 4 as well as Figures 6 to 10 As shown, the first display substrate 100 also includes a plurality of conductive portions 150 disposed on the same layer as and insulated from 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 disposed between the conductive portion 150 and the first signal line 130. For example, see reference. Figure 4Two conductive parts 150 are provided on both sides of the second signal line 140, which can shield the data signal and avoid the data signal from affecting the coupling capacitance between the first electrodes.

[0102] In some examples, such as Figure 3 , Figure 4 as well as Figures 6 to 10 As shown, at least a portion 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, the second conductive portion 152 extends along the Y direction, and the first conductive portion 151 and the second conductive portion 152 are integrally formed.

[0103] In some examples, such as Figure 3 , Figure 4 as well as Figures 6 to 10 As shown, along the direction perpendicular to the first substrate 110, the first conductive portion 151 and the second signal line 140 do not overlap, and both the first conductive portion 151 and the second conductive portion 152 overlap with the first electrode 120 to form a storage capacitor.

[0104] For example, such as Figure 4 As shown, along a direction perpendicular to the first substrate, the electrode connection portion 1220 of the first electrode 120 overlaps with the first conductive portion 131.

[0105] For example, such as Figure 3 and Figure 4 As shown, 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. Along 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, along a direction perpendicular to the first substrate 110, both first conductive portions 151 overlap with the first electrode 120 to increase the storage capacitance. Of course, the embodiments of this disclosure are not limited to this; 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.

[0106] For example, such as Figure 6 As shown, 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 protrusion 153 with a larger width to further increase the overlap area between the conductive portion and the first electrode to increase the storage capacitance.

[0107] For example, such as Figure 4 As shown, the first display substrate also includes a thin-film transistor 170. A 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. A first electrode 120 is connected to one of the source and drain terminals of the thin-film transistor 170. A second signal line 140 is connected to the other of the source and drain terminals of the thin-film transistor 170. The second signal line 140 inputs the voltage signal required for displaying the image to the first electrode 120 through the thin-film transistor 170 to realize the display of the display device.

[0108] Figure 7 Semiconductor layer 05 is shown. For example, as... Figure 4 and Figure 7 As shown, the semiconductor layer 05 is located on the side of the first signal line 130 away from the first substrate and overlaps with the first signal line 130 to serve as the active layer of the thin film transistor 170.

[0109] Figure 8 The film layer where the second signal line 140 is located is shown. For example, as... Figure 4 and Figure 8 As shown, 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 one structure.

[0110] Figure 9 A via is shown in the insulating layer located between the film layer containing the second signal line and the film layer containing the first electrode. For example, as... Figure 4 , Figure 6 , Figure 8 , Figure 9 as well as Figure 10 As shown, the first display substrate also includes a conductive structure 141 disposed on the same layer as the second signal line 140. The conductive structure 141 is electrically connected to the first electrode 120 through a via 06 disposed on the insulating layer. For example, along a direction perpendicular to the first substrate, the conductive structure 141 overlaps with the protrusion 153 to reduce the impact on the aperture ratio of the display device while forming a storage capacitor. For example, the electrode connection portion 1220 located in the middle region of the first electrode 120 has a wider portion, which is configured to be electrically connected to the conductive structure 141 through the via 06.

[0111] For example, such as Figure 4 , Figure 6 , Figure 8 as well as Figure 9 As shown, the first electrode 120 is electrically connected to the first electrode 142 of the thin-film transistor 170 through the via 07.

[0112] In some examples, such as Figure 3 , Figure 6 , Figure 9 and Figure 10 As shown, 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 in the same layer and material as the first electrode 120 and is insulated from it. Along a direction perpendicular to the first substrate, the connection structure 160 overlaps with the first signal line 130, and the overlapping portion of the connection structure 160 and the first signal line 130 includes a first notch 161. By providing a first notch at the overlapping portion of the connection structure and the first signal line, it is beneficial to minimize the capacitance generated between the connection structure and the first signal line.

[0113] For example, such as Figure 3 , Figure 6 , Figure 9 and Figure 10 As shown, the connection structure 160 is electrically connected to the connection pad 154 of the conductive portion 150 through a through-hole 08 penetrating 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, so as to electrically connect the conductive portions located between adjacent signal lines together. For example, the conductive portion can be input with a common signal, such as the same signal as on the second electrode.

[0114] In some examples, such as Figure 4 and Figure 10 As shown, the 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 recessing into the strip electrode 1210. For example, the orthographic projection of the first electrode 120 on the straight line extending along the X and Y directions overlaps with the orthographic projection of the connecting structure 160 on the corresponding straight line. In order to avoid interference between the first electrode 120 and the connecting structure 160, the edge of the first electrode 120 is set to have the shape of the second notch 1206.

[0115] For example, such as Figure 4 and Figure 10 As shown, the first display substrate includes multiple sub-pixels of different colors, and the first electrode 120 of only one color sub-pixel is provided with a second notch 1206 to reduce the impact on the aperture ratio of the display device.

[0116] Figure 11 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure. Figure 12A and Figure 12B for Figure 11 The diagram shows the layout structure of the film layer where the first electrode is located in different examples. Figure 11 and Figure 12AThe second display substrate in the display device shown, and the other film layers in the first display substrate besides the layer containing the first electrode, can be connected to... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here. Figure 11 and Figure 12A The width of the strip electrode, the width of the first gap, the width of the second gap, and the tilt angle of the strip electrode in the first electrode of the display device shown can be compared with... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here.

[0117] Figure 11 and Figure 12A The first electrode shown is Figure 4 and Figure 10 The difference in the first electrode shown is that at least one sub-electrode 1200 includes an annular electrode connection portion 1220 surrounding a plurality of strip electrodes 1210. The annular electrode connection portion 1220 includes an opening 1222, and the opening 1222 exposes at least a portion of one end of the strip electrodes 1210. For example, the aforementioned annular electrode connection portion 1220 is a non-closed annulus. 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, 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.

[0118] The display device provided in this disclosure, by setting the electrode connection portion to expose at least part of the strip electrode to adjust the deflection direction of the liquid crystal molecules corresponding to the edge of the strip electrode, and by setting the closed annular electrode connection portion relative to the edge of the strip electrode, is advantageous in moving the dark pattern to the side away from the center of the pixel area, such as moving the dark pattern to the side away from the area used for display, so that the dark pattern coincides with the black matrix as much as possible, thereby improving the transmittance of the display device.

[0119] In some examples, such as Figure 11 and Figure 12A As shown, within the same pixel area 134, multiple sub-electrodes 1200 are arranged along one of a first direction and a second direction, and the opening 1222 exposes only one end of a portion of the strip electrode 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 opening 1222 of the sub-electrode 1200 is no greater than N / 2.

[0120] For example, such as Figure 11 and Figure 12AAs shown, in the same sub-electrode 1200, both ends of a portion of the strip electrodes 1210 are connected to the electrode connection portion 1220, while only one end of another portion of the strip electrodes 1210 is connected to the electrode connection portion 1220. For example, in at least one sub-electrode 1200, each strip electrode 1210 is connected to the electrode connection portion 1220 surrounding the second gap 122.

[0121] For example, such as Figure 11 As shown, along a direction perpendicular to the first substrate, at least one strip electrode 1210 of a sub-electrode 1200 overlaps with a 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.

[0122] In some examples, such as Figure 11 and Figure 12A As shown, the outline shape of at least one sub-electrode 1200 includes a polygon, and the annular electrode connection portion 1220 surrounds at least two sides of the polygon. The outline shape of the sub-electrode may refer to the boundary of the sub-electrode, such as at least one side of the corresponding region of the sub-electrode including an opening. For example, the annular electrode connection portion 1220 surrounds at least three sides of the polygon.

[0123] For example, such as Figure 11 and Figure 12A As shown, at least one sub-electrode 1200 has a quadrilateral shape, with electrode connection portions 1220 provided at three sides and an opening 1222 provided at the other side. The quadrilateral can be approximately quadrilateral, such as having rounded corners or straight corners.

[0124] For example, such as Figure 11 and Figure 12A As shown, in the same first electrode 120, at least two sub-electrodes 1200 have different outline shapes. For example, in the same first electrode 120, at least two sub-electrodes 1200 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, and some first electrodes 120 do not include an opening 1222.

[0125] For example, such as Figure 11 and Figure 12AAs shown, in the same first electrode 120, at least two sub-electrodes 1200 include openings 1222 with the same size in the X direction. For example, in the same first electrode 120, at least two sub-electrodes 1200 include openings 1222 with different sizes in the X direction.

[0126] The display device provided in this disclosure can adjust the position and size of the sub-electrode opening for the position and degree of dark patterns in the same pixel area and the position and degree of dark patterns in different pixel areas during display, thereby setting the position of the opening in a targeted manner to improve the transmittance of the display device.

[0127] In some examples, such as Figure 11 and Figure 12A As shown, at least one pixel region 134 includes a first sub-electrode 1201 and a second sub-electrode 1202 disposed adjacently. The first sub-electrode 1201 is close to the edge of the pixel region 134, and the second sub-electrode 1202 is 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.

[0128] In some examples, such as Figure 11 and Figure 12A As shown, the orientation of the opening 1222 of the annular electrode connection portion 1220 in the first sub-electrode 1201 is different from the orientation of the opening 1222 of the annular electrode connection portion 1220 in the second sub-electrode 1202. The orientation of the opening refers to its direction relative to the center of the sub-electrode. For example, an opening facing right indicates that the opening is located to the right of the center of the sub-electrode, and an opening facing upwards indicates that the opening is located above the center of the sub-electrode. Here, "facing right" can refer to the direction indicated by the arrow in the Y direction in the figure, and "facing upwards" can refer to the direction indicated by the arrow in the X direction in the figure. The center of the sub-electrode refers to its geometric center.

[0129] Since the dark patterns generated at different locations in the pixel area are in different positions, by adjusting the opening orientation of the sub-electrode for the dark pattern position, it is beneficial to move the dark patterns generated in the pixel area to the side away from the center of the pixel area so as to bring the dark patterns as close as possible to the black matrix, thereby improving the transmittance of the display device.

[0130] For example, such as Figure 11 and Figure 12A As shown, in the same first electrode 120, at least two sub-electrodes 1200 have openings 1222 with different orientations. For example, the same first electrode 1200 includes two sub-electrodes 1200 with openings facing the same direction. For example, in the same first electrode 120, the two sub-electrodes 1200 located closest to its center have openings 1222 with the same orientation.

[0131] For example, such as Figure 11 and Figure 12AAs shown, the openings 1222 of the multiple sub-electrodes 1200 arranged along the Y direction all have the same orientation, so that the dark lines are moved in the same direction.

[0132] In some examples, such as Figure 11 and Figure 12A As shown, at least one pixel region 134 includes two first sub-electrodes 1201, and the openings 1222 of the annular electrode connection portions 1220 in the two first sub-electrodes 1201 have the same orientation. For example, each pixel region 134 includes two first sub-electrodes 1201, and the openings 1222 of the two first sub-electrodes 1201 have the same orientation. For example, at least one pixel region 134 includes two second sub-electrodes 1202, and the openings 1222 in the two second sub-electrodes 1202 have the same orientation.

[0133] For example, such as Figure 11 and Figure 12A As shown, the same first electrode 120 includes four sub-electrodes 1200 arranged along the X direction. These four sub-electrodes 1200 are sequentially arranged along the X direction as a first sub-electrode 1201, a second sub-electrode 1202, a third sub-electrode 1202, and a fourth sub-electrode 1201. For example, the arrangement direction of the strip electrodes in the first sub-electrode 1200 is the same as that in the third sub-electrode 1200, and the arrangement direction of the strip electrodes in the second sub-electrode 1200 is the same as that in the fourth sub-electrode 1200.

[0134] In some examples, such as Figure 11 and Figure 12A As shown, 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 connection portion 1220 in the first sub-electrode 1201 is opposite to the orientation of the opening 1222 of the annular electrode connection portion 1220 in the second sub-electrode 1202.

[0135] For example, such as Figure 11 and Figure 12A As shown, the opening 1222 in the first sub-electrode 1201 faces left, so that the dark fringe corresponding to the first sub-electrode 1201 moves to the left, such as moving closer to a second signal line 140; the opening 1222 in the second sub-electrode 1202 faces right, so that the dark fringe corresponding to the second sub-electrode 1202 moves to the right, such as moving closer to another second signal line 140, thereby moving the dark fringe to both sides to improve light transmittance.

[0136] In some examples, such as Figure 11 and Figure 12AAs shown, the first sub-electrode 1201 and the second sub-electrode 1202 are arranged along the first direction. The opening 1222 of the annular electrode connection portion 1220 in the first sub-electrode 1201 and the opening 1222 of the annular electrode connection portion 1220 in the second sub-electrode 1202 both face the second signal line 140.

[0137] In some examples, such as Figure 11 and Figure 12A As shown, the straight line extending along the first direction passes through the edge of the strip electrode 1210 in the first sub-electrode 1201 exposed by the opening 1222 and the edge of the annular electrode connection 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 connection 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 connection portion 1220 of the first sub-electrode 1201 in the X direction.

[0138] The display device provided in this disclosure, by setting the edge of the strip electrode in the first electrode with the opening and the edge of the electrode connection portion to be flush in a 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, and while moving the dark pattern outward as much as possible, ensures that the distance between the strip electrode and the second signal line meets the process requirements.

[0139] For example, such as Figure 12A As shown, in the same first electrode 120, the edges of the strip electrodes 1210 of the two first sub-electrodes 1201 are flush in the first direction, and the edges of the strip electrodes 1210 of the two second sub-electrodes 1202 are flush in the first direction. For example, in the same first electrode 120, the edges of the electrode connection portions 1220 of the two first sub-electrodes 1201 are flush in the first direction, and the edges of the electrode connection portions 1220 of the two second sub-electrodes 1202 are flush in the first direction.

[0140] For example, Figure 12A The connection structure 160 shown can be connected with Figures 3 to 10 The connection structure 160 in the display device shown has the same features, and will not be described again here.

[0141] For example, Figure 12A The diagram schematically shows that each of the second gaps is surrounded by the electrode connection portion, but is not limited thereto. At least one second gap may not be surrounded by the electrode connection portion, such as at least one second gap may be in communication with the space between the electrode connection portion and the signal line, in order to specifically reduce interdomain dark lines.

[0142] Figure 12B and Figure 12AThe difference lies in that the electrode connection 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 being surrounded by the electrode connection portion 1220, while the electrode connection portion 1220 of the first sub-electrode 1201 is a non-closed annular structure, such as the electrode connection portion 1220 of the first sub-electrode 1201 having an opening design, which can face the first signal line or the second signal line. This disclosure embodiment does not limit this.

[0143] Figure 13 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure. Figure 14 for Figure 13 The diagram shows the layout structure of the film layer where the first electrode is located. Figure 13 and Figure 14 The second display substrate in the display device shown, and the other film layers in the first display substrate besides the layer containing the first electrode, can be connected to... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here. Figure 13 and Figure 14 The width of the strip electrode, the width of the first gap, the width of the second gap, and the tilt angle of the strip electrode in the first electrode of the display device shown can be compared with... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here.

[0144] Figure 13 and Figure 14 The first electrode shown is Figure 11 and Figure 12A The difference in the first electrode shown lies in the orientation of the opening 1222 of the annular electrode connection portion 1220 in the first sub-electrode 1201. For example, Figure 13 and Figure 14 The orientation of the first electrode 120 shown is different except for the orientation of some openings 1222. Figure 11 and Figure 12A The opening 1222 in the first electrode 120 shown faces outwards, and other features can be the same, which will not be described in detail here.

[0145] In some examples, such as Figure 13 and Figure 14 As shown, the first sub-electrode 1201 and the second sub-electrode 1202 are arranged along a first direction. The opening 1222 of the annular electrode connection portion 1220 in the first sub-electrode 1201 faces the first signal line 130, and the opening 1222 of the annular electrode connection portion 1220 in the second sub-electrode 1202 faces the second signal line 140.

[0146] For example, such as Figure 13 and Figure 14As shown, the opening 1222 of the first sub-electrode 1201 faces upward or downward to move the dark pattern upward or downward, such as towards the direction of the first signal line 130; the opening 1222 of the second sub-electrode 1202 faces to the right to move the dark pattern to the right, such as towards the direction of the second signal line 140, thereby improving the transmittance of the display device.

[0147] For example, such as Figure 13 and Figure 14 As shown, the first electrode 120 includes four sub-electrodes 1200 arranged along the X direction. The openings 1222 of the two first sub-electrodes 1201 located on both sides face upward and downward respectively, and the openings 1222 of the two second sub-electrodes 1202 located in the middle both face to the right, so as to move the dark pattern upward, downward and to the right.

[0148] For example, such as Figure 13 and Figure 14 As shown, the edge of the strip electrode 1210 of the second sub-electrode 1202 is flush with the edge of the electrode connection portion 1220 of the first sub-electrode 1201 in the X direction. This is to maximize the extension of the length of the strip electrode, adjust its edge position to be as far away from the center of the pixel area as possible, and move the dark lines outward as much as possible, while ensuring that the distance between the strip electrode and the second signal line meets the requirements.

[0149] Of course, the embodiments disclosed herein are not limited to this, and may also include Figure 12A and Figure 14 The opening direction of the first electrode is combined as follows: for example, the first electrode includes two first sub-electrodes, the opening of the annular electrode connection portion of one of the two first sub-electrodes faces the first signal line, and the opening of the annular electrode connection portion of the other of the two first sub-electrodes faces the second signal line; or, in the same first sub-electrode, a portion of the same opening faces the first signal line and another portion faces the second signal line.

[0150] For example, such as Figures 3 to 14 As shown, in two adjacent sub-electrodes 1200 arranged in the X direction, at least a portion of the strip electrodes 1210 located in each of the two sub-electrodes 1200 are symmetrically distributed about a straight line extending in the Y direction as an axis of symmetry. For example, the strip electrodes 1210 in the adjacent first sub-electrode 1201 and second sub-electrode 1202 are symmetrically distributed about a second gap 122 as an axis of symmetry. For example, the strip electrodes 1210 in the two adjacent second sub-electrodes 1202 are symmetrically distributed about a second conductive portion 151 as an axis of symmetry.

[0151] For example, such as Figures 3 to 14 As shown, the same first electrode 120 includes two second gaps 122, and two second sub-electrodes 1202 are disposed between the two second gaps 122.

[0152] Figure 15 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure. Figure 16 for Figure 15 The diagram shows the layout structure of the film layer where the first electrode is located. Figure 15 and Figure 16 The second display substrate in the display device shown, and the other film layers in the first display substrate besides the layer containing the first electrode, can be connected to... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here.

[0153] In some examples, such as Figure 15 and Figure 16 As shown, within the same pixel area 134, multiple sub-electrodes 1200 are arranged in an array along a first direction and a second direction, and a second gap 122 is provided between adjacent sub-electrodes 1200 arranged along the first direction and between adjacent sub-electrodes 1200 arranged along the second direction. Figure 15 and Figure 16 The width of the strip electrode and its tilt angle selection range, 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 electrode in the display device shown can be related to... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here.

[0154] For example, Figure 15 The alignment direction 18 of the alignment film in the second display substrate is schematically shown as the direction indicated by the dashed arrow. The multi-domain display adjustment of liquid crystal molecules is achieved by coordinating this alignment direction with the tilt angle of the strip electrode. Figure 15 The liquid crystal shown is in its deflected state after an electric field is applied. For example, there is a certain angle between the alignment direction and the extension direction of the strip electrode, such as an angle greater than 0 degrees and less than 45 degrees. Figure 15 The location of the dark pattern 20 is also schematically shown, such as the dark pattern 20 being cross-shaped. Figure 15 The alignment film material in the first display substrate of the display device shown has not undergone alignment treatment.

[0155] The display device provided in this disclosure provides a way to control the multi-domain display of liquid crystal molecules in the liquid crystal layer by setting multiple sub-electrodes in the same pixel area, and each sub-electrode includes multiple strip electrodes. Furthermore, the alignment film that controls the pretilt angle of the liquid crystal molecules, the strip electrodes with different extension directions, and the second gap that is not connected to the first gap between adjacent sub-electrodes work together to alleviate the problem of disordered deflection of liquid crystal molecules between domains, thereby helping to reduce dark lines between domains and improve the light transmittance of the display device.

[0156] For example, such as Figure 15 and Figure 16As shown, four second gaps 122 are provided in the same first electrode 120, and each of the four second gaps 122 is provided with an electrode connection part 1220, such that the different second gaps 122 in the same first electrode 120 are not connected.

[0157] For example, such as Figure 15 and Figure 16 As shown, the second gaps 122 in the same first electrode 120 are cross-shaped. For example, the electrode connection portion 1220 between multiple second gaps 122 in the same first electrode 120 includes a structure 123, which is configured to connect with... Figure 8 The conductive structure 141 shown is electrically connected.

[0158] For example, such as Figure 15 and Figure 16 As shown, in the same first electrode 120, the strip electrodes 1210 of the adjacent sub-electrodes 1200 arranged along the X direction are symmetrically distributed, and the strip electrodes 1210 of the adjacent sub-electrodes 1200 arranged along the Y direction are also symmetrically distributed.

[0159] For example, such as Figure 15 and Figure 16 As shown, in the same first electrode 120, the strip electrodes 1210 of the multiple sub-electrodes 1200 are distributed in a divergent manner with the center of the first electrode 120 as the center.

[0160] In some examples, such as Figure 15 and Figure 16 As shown, at least one sub-electrode 1200 includes a closed annular electrode connection portion 1220 surrounding a plurality of strip electrodes 1210.

[0161] For example, such as Figure 15 and Figure 16 As shown, in the direction perpendicular to the first substrate, the electrode connection portion 1220 overlaps with the first conductive portion 151, while the strip electrode 1210 does not overlap with the first conductive portion 151.

[0162] Figure 17 This is a partial planar structure schematic diagram of a first display substrate provided according to another example of an embodiment of the present disclosure. Figure 18 for Figure 17 The diagram shows the layout structure of the film layer where the first electrode is located. Figure 17 and Figure 18 The second display substrate in the display device shown, and the other film layers in the first display substrate besides the layer containing the first electrode, can be connected to... Figures 3 to 10 The corresponding structures in the display devices shown have the same characteristics, and will not be described again here.

[0163] Figure 17 and Figure 18 The display device shown is Figure 15 and Figure 16 The difference in the display device shown is that more than 90% of the electrode connection portion 1220 is located between multiple strip electrodes 1210 of adjacent sub-electrodes 1200 in the same pixel area 134. For example, more than 95% of the electrode connection portion 1220 is located between multiple strip electrodes 1210 of adjacent sub-electrodes 1200 in the same pixel area 134. For example, the strip electrodes 1210 are not surrounded by the electrode connection portion 1220.

[0164] For example, such as Figure 17 and Figure 18 As shown, in the same first electrode 120, at least some of the strip electrodes 1210 are connected to the electrode connection portion 1220 at only one end. For example, in the same first electrode 120, each strip electrode 1210 is connected to the electrode connection portion 1220 at only one end.

[0165] For example, such as Figure 17 and Figure 18 As shown, along the direction perpendicular to the first display substrate, the strip electrode 1210 of the same first electrode 120 overlaps with the first conductive portion 151, and the electrode connection portion 1220 includes the portion overlapping with the first conductive portion 151.

[0166] For example, such as Figure 18 As shown, at least one second gap 122 is not completely surrounded by the electrode connection portion 1220, such that at least one second gap 122 can communicate with the space between the first electrode and the signal line. By setting at least one second gap as a non-closed gap, it is beneficial to adjust the deflection direction of the liquid crystal at the edge of the first electrode, alleviate the liquid crystal deflection disorder, reduce dark lines, and improve the transmittance of the display device.

[0167] For example, such as Figure 18 As shown, each of the second gaps 122 is a non-closed gap, and one end of each of the second gaps 122 extends to the structure 123.

[0168] Figure 19 This is a partial planar structural schematic diagram of a display device provided according to another embodiment of the present disclosure. Figure 20 for Figure 19 The diagram shows the layout structure of the film layer where the first electrode is located.

[0169] Figure 19 and Figure 20 The second display substrate in the display device shown, and the other film layers in the first display substrate besides the layer containing the first electrode, can be connected to... Figures 3 to 10 The corresponding structures in the shown display device have the same characteristics. The display device includes... Figure 3The diagram shows 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 includes a first substrate and a plurality of first electrodes, a plurality of first signal lines, and a plurality of second signal lines located on the first 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, the first and second directions intersecting. The second display substrate is located on the side of the plurality of first electrodes away from the first substrate, and includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. The plurality of first signal lines and the plurality of second signal lines are intersected to define a plurality of pixel regions, and the first electrodes in different pixel regions are insulated from each other.

[0170] like Figure 19 and Figure 20 As shown, in at least a portion of the pixel region 134, the first electrode 120 within the same pixel region 134 includes a plurality of electrically connected sub-electrodes 1200, each sub-electrode 1200 including 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 parallel to a first direction and a second direction, such as the X direction and the Y direction, respectively, and the first electrode 120 also includes a closed annular electrode connection portion 1220 surrounding the plurality of strip electrodes 1210 of each sub-electrode 1200.

[0171] For example, Figure 19 The alignment direction 18 of the alignment film in the second display substrate is schematically shown as the direction indicated by the dashed arrow. The multi-domain display adjustment of liquid crystal molecules is achieved by coordinating this alignment direction with the tilt angle of the strip electrode. Figure 19 The location of the dark pattern 20 is also schematically shown, such as the dark pattern 20 being in a cross shape. Figure 19 The liquid crystal shown is in its deflected state after an electric field is applied. For example, there is a certain angle between the alignment direction and the extension direction of the strip electrode, such as 80 to 100 degrees, or 90 degrees. For example, in this embodiment, the alignment material layer in the first display substrate is not aligned, that is, no alignment is performed for the liquid crystal deflection.

[0172] In the display device provided in this embodiment, by providing multiple sub-electrodes, including strip-shaped electrodes, in the first electrode, matching the alignment direction of the alignment film in each display substrate with the extension direction of the strip-shaped electrodes in different sub-electrodes, and setting the electrode connection portion as a closed ring, it is beneficial to alleviate the phenomenon of disordered deflection of liquid crystal molecules at the boundary of adjacent sub-electrodes, thereby reducing dark lines and improving the transmittance of the display device.

[0173] In some examples, such as Figure 19 and Figure 20As shown, in at least one pixel region 134, the same pixel region 134 includes four sub-electrodes 1200 arranged in an array along a first direction and a second direction. For example, the areas of the different sub-electrodes 1200 are approximately the same.

[0174] The following points need to be explained:

[0175] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0176] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0177] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A display device, comprising: The first display substrate includes a first substrate and a plurality of first electrodes, a plurality of first signal lines and a plurality of second signal lines located on the first substrate, wherein the arrangement direction of the plurality of first signal lines intersects with the arrangement direction of the plurality of second signal lines. The second display substrate is located on the side of the plurality of first electrodes away from the first substrate. The second display substrate includes a second substrate and a second electrode located on the side of the second substrate facing the first display substrate. A liquid crystal layer is 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 intersected to define a plurality of pixel regions, and the first electrodes in different pixel regions are insulated from each other; In at least a portion of the pixel region, the first electrode within the same pixel region includes multiple sub-electrodes that are electrically connected. Each sub-electrode includes multiple strip electrodes and an electrode connection portion connected to the multiple strip electrodes. A first gap is provided between adjacent strip electrodes in each sub-electrode, and the extending 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, an electrode connection 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; At least one pixel region includes two adjacent sub-electrodes within the same pixel region, each including a non-closed annular electrode connection portion surrounding the plurality of strip electrodes. The electrode connection portion includes an opening that exposes one end of a portion of the strip electrode. The same pixel region includes a first sub-electrode and a second sub-electrode disposed adjacently, the first sub-electrode being near the edge of the pixel region and the second sub-electrode being near the center of the pixel region. The orientation of the opening of the electrode connection portion in the first sub-electrode differs from the orientation of the opening of the electrode connection portion in the second sub-electrode. The at least one pixel region includes four sub-electrodes arranged sequentially along one of the arrangement directions of the plurality of first signal lines and the arrangement directions of the plurality of second signal lines. The extension direction of the plurality of strip electrodes included in the first sub-electrode is different from the extension direction of the plurality of strip electrodes included in the second sub-electrode, the extension direction of the plurality of strip electrodes included in the second sub-electrode is different from the extension direction of the plurality of strip electrodes included in the third sub-electrode, and the extension direction of the plurality of strip electrodes included in the third sub-electrode is different from the extension direction of the plurality of strip electrodes included in the fourth sub-electrode. The openings of the electrode connection portions in the second and third sub-electrodes face the same direction.

2. 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; Within the same pixel area, the plurality of sub-electrodes are arranged along one of the first and second directions, and the opening exposes only one end of a portion of the strip electrode.

3. The display device according to claim 2, wherein, The outline shape of the at least one sub-electrode includes a polygon, and the electrode connection portion surrounds at least two sides of the polygon.

4. 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; The first sub-electrode and the second sub-electrode are arranged along the first direction, with the opening of the electrode connection portion of the first sub-electrode facing the first signal line, and the opening of the electrode connection portion of the second sub-electrode facing the second signal line.

5. The display device according to claim 1, wherein, The orientation of the opening of the electrode connection portion in the first sub-electrode is opposite to the orientation of the opening of the electrode connection portion in the second sub-electrode.

6. The display device according to claim 1, 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-electrode and the second sub-electrode are arranged along the first direction; The at least one pixel region includes two first sub-electrodes, which are respectively the first sub-electrode and the fourth sub-electrode among the four sub-electrodes. The openings of the electrode connection portions of the two first sub-electrodes have the same orientation, or the opening of the electrode connection portion of one of the two first sub-electrodes faces the first signal line, and the opening of the electrode connection portion of the other of the two first sub-electrodes faces the second signal line.

7. 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 openings of the electrode connection portions in the first sub-electrode and the second sub-electrode are both facing the second signal line. The 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 connection portion in the second sub-electrode.

8. The display device according to claim 1, wherein, The angle between the strip electrode and one of the arrangement directions of the plurality of first signal lines and the arrangement direction of the plurality of second signal lines is 30° to 80°.

9. The display device according to claim 1, wherein, The width of the strip electrode is 2-4 micrometers, and the width of the first gap is 2-4 micrometers.

10. The display device according to any one of claims 1-9, 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.

11. The display device according to any one of claims 1-9, wherein, One of the first display substrate and the second display substrate includes an alignment film that has undergone alignment treatment, the alignment film being located between the liquid crystal layer and the second electrode; or, both the first display substrate and the second display substrate include alignment films that have undergone alignment treatment.

12. The display device according to any one of claims 1-9, wherein, The first display substrate further includes a plurality of conductive portions disposed on the same layer as and insulated from 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 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.

13. The display device according to claim 12, wherein, The first display substrate further includes a connection structure connecting the conductive portions located on both sides of the first signal line. The connection structure is in the same layer as the first electrode and is insulated from it. Along a direction perpendicular to the first substrate, the connection structure overlaps with the first signal line, and the overlapping portion of the connection structure with the first signal line includes a first notch.

14. The display device according to claim 13, 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 recessing into the strip electrode side.

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