Display substrate and display device

Abstract

The present disclosure provides a display substrate and a display device. The display substrate comprises a first substrate, and a scan line and a data line on the first substrate; the display substrate comprises a plurality of pixel structures, the pixel structure comprises a plurality of sub-pixel structures, the sub-pixel structure comprises a common electrode and a pixel electrode, the orthogonal projection of the common electrode on the first substrate and the orthogonal projection of the pixel electrode on the first substrate have an overlapping area; the sub-pixel structure comprises a target sub-pixel structure, the common electrode of the target sub-pixel structure comprises a first part, a second part, a third part and a fourth part, the first part and the second part are arranged along a first direction and extend along a second direction; on the side away from the scan line corresponding to the target sub-pixel structure, the first part and the second part are connected through the third part; on the side close to the scan line corresponding to the target sub-pixel structure, the fourth part is connected with the first part on the side of the first part close to the second part, and the fourth part is separated from the second part.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display substrate and a display device. Background Technology

[0002] A TN (Twisted Nematic) panel refers to a display where nematic liquid crystals form a 90° twisted alignment structure within the screen. When a certain voltage is applied to the upper and lower electrodes of the display, the liquid crystal molecules align vertically, the twisted structure disappears, and the optical rotation phenomenon also disappears. After the applied voltage is removed, the liquid crystal molecules return to their original twisted alignment under the anchoring force on the alignment film surface. By controlling the magnitude of the applied voltage, the degree of twisting of the TN liquid crystal molecules can be controlled, thereby controlling the brightness of the light transmitted through the liquid crystal. Summary of the Invention

[0003] In a first aspect, embodiments of this disclosure provide a display substrate, including a first substrate, and scan lines and data lines located on the first substrate. The scan lines extend along a first direction and are arranged along a second direction on the first substrate, and the data lines are arranged along the first direction and extend along the second direction on the first substrate. The first direction and the second direction are mutually intersecting directions.

[0004] The display substrate includes multiple pixel structures, each pixel structure includes multiple sub-pixel structures, and each sub-pixel structure includes a common electrode and a pixel electrode. The orthographic projection of the common electrode on the first substrate and the orthographic projection of the pixel electrode on the first substrate have an overlapping area.

[0005] The sub-pixel structure includes a target sub-pixel structure, and the common electrode of the target sub-pixel structure includes a first part, a second part, a third part, and a fourth part. The first part and the second part are arranged along the first direction and extend along the second direction.

[0006] On the side of the scan line corresponding to the target sub-pixel structure away from the target sub-pixel structure, the first part and the second part are connected through the third part;

[0007] On the side of the scan line corresponding to the target sub-pixel structure, the fourth part is connected to the first part on the side of the first part that is close to the second part, and the fourth part is separate from the second part.

[0008] In some embodiments, the minimum distance between the second part and the fourth part is greater than half the distance between the first part and the second part.

[0009] In some embodiments, the minimum distance between the second part and the fourth part is greater than 60 percent of the distance between the first part and the second part.

[0010] In some embodiments, the minimum distance between the second part and the fourth part is greater than 36 micrometers.

[0011] In some embodiments, the minimum distance between the second part and the fourth part is greater than 38.3 micrometers.

[0012] In some embodiments, the plurality of sub-pixel structures further include a first sub-pixel structure, the first sub-pixel structure and the target sub-pixel structure corresponding to sub-pixels of different colors, and the common electrode of the first sub-pixel structure includes a fifth part, a sixth part, and a seventh part;

[0013] The fifth part and the sixth part are arranged along the first direction and extend along the second direction. On the side away from the scan line corresponding to the first sub-pixel structure, the fifth part and the sixth part are connected through the seventh part.

[0014] Along the first direction, the widths of the fifth and sixth portions are greater than the widths of the first and second portions;

[0015] Along the second direction, at least a portion of the width of the third portion is greater than the width of the seventh portion.

[0016] In some embodiments, along the first direction, at least a portion of the orthographic projection of the fourth portion onto the first portion does not overlap with the orthographic projection of the second portion onto the first portion.

[0017] In some embodiments, along the first direction, the orthographic projection of the fourth portion onto the first portion does not overlap with the orthographic projection of the second portion onto the first portion.

[0018] In some embodiments, the display substrate includes a semi-via hole structure, and the pixel electrode of the target sub-pixel structure is electrically connected to the sub-pixel driving circuit corresponding to the target sub-pixel structure through the semi-via hole structure;

[0019] The orthographic projection of the semi-via structure on the first substrate overlaps with the orthographic projection of the target connection line on the first substrate, and the target connection line is the line connecting the second part and the fourth part at the position with the smallest distance.

[0020] In some embodiments, the plurality of sub-pixel structures further includes a first sub-pixel structure, the first sub-pixel structure and the target sub-pixel structure corresponding to sub-pixels of different colors, and the area of ​​the orthographic projection of the semi-via structure corresponding to the target sub-pixel structure on the first substrate is greater than the area of ​​the orthographic projection of the first sub-pixel structure on the first substrate.

[0021] In some embodiments, the target sub-pixel structure corresponds to the blue sub-pixel.

[0022] Secondly, embodiments of this disclosure also provide a display panel, including a display substrate and an opposing substrate, wherein the display substrate is the display substrate described in any one of the first aspects.

[0023] In some embodiments, the display panel further includes a black matrix whose orthographic projection on the first substrate overlaps the orthographic projection of the target connection line on the first substrate, wherein the target connection line is the connection between the positions where the distance between the second portion and the fourth portion is the smallest.

[0024] In some embodiments, the black matrix divides the opening region of the target subpixel structure into a first region and a second region that are independent of each other.

[0025] In some embodiments, in the region corresponding to the line connecting the targets, the black matrix is ​​perpendicular to the width of the line connecting the targets, and the width of the black matrix is ​​6 to 10 micrometers.

[0026] In some embodiments, the display substrate is a color filter array substrate, and the black matrix is ​​disposed on the color filter array substrate, or

[0027] The display substrate is an array substrate, the opposing substrate is a color filter substrate, and the black matrix is ​​disposed on the color filter substrate. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 These are display effect diagrams of display devices based on related technologies;

[0030] Figure 2 These are microscopic images of display devices based on related technologies;

[0031] Figure 3AThis is a schematic diagram of the structure of the display substrate provided in the embodiments of this disclosure;

[0032] Figure 3B This is a schematic diagram of the structure of the display substrate provided in the embodiments of this disclosure;

[0033] Figure 4A yes Figure 3A Sectional view along line A-A';

[0034] Figure 4B yes Figure 3A Sectional view along line B-B';

[0035] Path 5 is a schematic diagram of the data line structure according to an embodiment of this disclosure;

[0036] Figure 6 This is a schematic diagram of the structure of the common electrode in an embodiment of this disclosure;

[0037] Figure 7 This is a schematic diagram of the structure of the pixel electrode according to an embodiment of the present disclosure;

[0038] Figure 8 This is a schematic diagram of the distribution of the semi-via structure in an embodiment of this disclosure;

[0039] Figure 9 This is another structural schematic diagram of the display substrate provided in the embodiments of this disclosure;

[0040] Figure 10 This is a schematic diagram of the structure of the black matrix in an embodiment of this disclosure;

[0041] Figure 11 This is another structural schematic diagram of the display substrate provided in the embodiments of this disclosure.

[0042] Figure 12 This is another structural schematic diagram of the display substrate provided in the embodiments of this disclosure. Detailed Implementation

[0043] 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 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.

[0044] The terms "first," "second," etc., used in the embodiments of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Additionally, the use of "and / or" in this application indicates at least one of the connected objects, such as A and / or B and / or C, representing seven possibilities: including A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and A, B, and C present.

[0045] like Figure 1 and Figure 2 As shown, TN type display devices may exhibit localized bright spots during use, such as... Figure 2 As shown, a bright spot appears as a blue line on a microscopic scale. Further research revealed that the cause of this blue line is that, under normal conditions, liquid crystal molecules are in a state of flow equilibrium. When the display panel is pressed, the liquid crystal molecules flow laterally. In areas where the lateral dimension is relatively narrow, the liquid crystals are squeezed and pulled against each other, and the recovery is relatively slow, resulting in the appearance of a blue line.

[0046] This disclosure provides a display substrate.

[0047] In some embodiments, the display substrate may specifically be the display substrate of a TN type display device.

[0048] like Figure 3A , Figure 4A and Figure 4B As shown, in some embodiments, the display substrate includes a first substrate 30, and scan lines 31 and data lines 32 located on the first substrate 30.

[0049] like Figure 4A , Figure 4B and Figure 5 As shown, the display substrate may also include some other structures, such as a first insulating layer 35, an active layer 36, a second insulating layer 37, etc., which are not further limited or described here.

[0050] like Figure 3A , Figure 5 and Figure 6As shown, the scan line 31 extends along the first direction D1 and is arranged along the second direction D2 on the first substrate 30, and the data line 32 is arranged along the first direction D1 and extends along the second direction D2 on the first substrate 30. The first direction D1 and the second direction D2 are mutually intersecting directions.

[0051] In one exemplary embodiment, the first direction D1 is the row direction of the display substrate, and the second direction D2 is the column direction of the display substrate. The first direction D1 and the second direction D2 can be approximately perpendicular to each other. Obviously, the first direction D1 and the second direction D2 are not limited to this, and the first direction D1 and the second direction D2 can be adaptively adjusted.

[0052] The display substrate includes multiple pixel structures. Generally, each pixel structure includes multiple sub-pixel structures. More specifically, each pixel structure can typically include sub-pixel structures corresponding to multiple sub-pixels of different colors.

[0053] like Figure 6 and Figure 7 As shown, the sub-pixel structure includes a common electrode 34 and a pixel electrode 33. There is an overlapping region between the common electrode 34 and the pixel electrode 33. Specifically, the overlapping region refers to the overlapping area between the orthographic projection of the common electrode 34 onto the first substrate 30 and the orthographic projection of the pixel electrode 33 onto the first substrate 30. The overlapping portion between the common electrode 34 and the pixel electrode 33 constitutes the storage capacitance of this sub-pixel structure.

[0054] like Figure 6 As shown, in one embodiment, the common electrode 34 and the scan line 31 are disposed on the same layer and made of the same material; in other words, the common electrode 34 and the scan line 31 are fabricated in a single patterning process. Along the second direction D2, the common electrode 34 and the scan line 31 are alternately arranged. Figure 3A In the state shown, the scan line 31 corresponding to the sub-pixel structure is located below the common electrode 34 of the sub-pixel structure, and the scan line 31 above the sub-pixel structure is the scan line 31 corresponding to the previous row of sub-pixel structures.

[0055] Along the first direction D1, the common electrodes 34 of each sub-pixel structure corresponding to a row of sub-pixels are arranged sequentially, and the common electrodes 34 located in the same row are electrically connected sequentially to provide the same common power signal.

[0056] In some embodiments, the subpixel structure includes a target subpixel structure, and the subpixel structure further includes a first subpixel structure, wherein the first subpixel structure and the target subpixel structure correspond to subpixels of different colors.

[0057] In one exemplary embodiment, each pixel of the display substrate includes three sub-pixels: a red sub-pixel, a blue sub-pixel, and a green sub-pixel. The target sub-pixel structure corresponds to the blue sub-pixel, and the first sub-pixel structure corresponds to either the red or green sub-pixel.

[0058] It should be understood that the above embodiments are for illustrative purposes only, and the correspondence between each sub-pixel structure and sub-pixel color is not further limited in this embodiment.

[0059] like Figure 6 As shown, the common electrode 34 of the target sub-pixel structure includes a first part 341, a second part 342, a third part 343 and a fourth part 344. The first part 341 and the second part 342 are arranged along a first direction D1 and extend along a second direction D2.

[0060] On the side away from the scan line 31 corresponding to the target sub-pixel structure, the first part 341 and the second part 342 are connected by the third part 343.

[0061] like Figure 6 As shown, the common electrode 34 of the first sub-pixel structure includes a fifth part 345, a sixth part 346, and a seventh part 347. The fifth part 345 and the sixth part 346 are arranged along the first direction D1 and extend along the second direction D2. On the side away from the scan line 31 corresponding to the first sub-pixel structure, the fifth part 345 and the sixth part 346 are connected through the seventh part 347.

[0062] like Figure 6 As shown, in Figure 6 In the indicated direction, the common electrode 34 of the first sub-pixel structure is roughly inverted "U" shape, and the common electrode 34 of the target sub-pixel structure is also roughly "U" shape. The main difference between the target sub-pixel structure and the first sub-pixel structure is that the common electrode 34 of the target sub-pixel structure also includes a protruding part, namely the fourth part 344 mentioned above.

[0063] On the side of the scan line 31 corresponding to the target sub-pixel structure, the fourth part 344 is connected to the first part 341 on the side of the first part 341 near the second part 342, and the fourth part 344 is separated from the second part 342.

[0064] like Figure 6As shown, in this embodiment, the general shape of the fourth part 344 can be understood as being composed of a right-angled trapezoid and a rectangular part. The rectangular part is directly connected to the edge of the first part 341 near the second part 342. The longer lower base of the right-angled trapezoid is the same length as one side of the rectangular part, and the lower base of the right-angled trapezoid is connected to a side of equal length of the rectangular part. The oblique leg of the right-angled trapezoid is located near the third part 343, and the right-angled leg extends along one side of the rectangular part.

[0065] By setting the fourth part 344, the area of ​​the common electrode 34 of the sub-pixel corresponding to the target sub-pixel structure can be further increased, and the capacitance value of the thick capacitor corresponding to the target color sub-pixel corresponding to the target sub-pixel structure can be increased, which helps to improve the display effect.

[0066] like Figure 6 As shown, in some embodiments, the minimum distance between the second portion 342 and the fourth portion 344 is greater than half the distance between the first portion 341 and the second portion 342. Further, in some embodiments, the minimum distance between the second portion 342 and the fourth portion 344 is greater than sixty percent of the distance between the first portion 341 and the second portion 342.

[0067] It should be understood that the small distance between the fourth part 344 and the second part 342 can cause the liquid crystal to be pulled and squeezed, resulting in bright spots along the direction of the target connection line. In this embodiment, the line connecting the two parts 342 and 344 with the smallest distance is defined as the target connection line.

[0068] It is important to understand that the target line corresponds to the minimum distance between the fourth part 344 and the second part 342. Thus, as long as no bright spots appear in the area corresponding to the target line, no bright spots will appear in other areas due to this reason.

[0069] In this embodiment, the lateral flow of liquid crystal can be adjusted in different ways.

[0070] like Figure 6 As shown, in some embodiments, this can be achieved by increasing the minimum straight-line distance between the second part 342 and the fourth part 344.

[0071] It should be understood that the distance between the first part 341 and the second part 342 is large enough that bright spots caused by the above reasons will not appear. In this embodiment, by adjusting the minimum distance between the first part 341 and the fourth part 344, it can also be understood that the length of the target line is adjusted to avoid bright spots caused by the above reasons.

[0072] In some embodiments, the minimum distance between the second portion 342 and the fourth portion 344 is greater than 36 micrometers. Further, in some embodiments, the minimum distance between the second portion 342 and the fourth portion 344 is greater than 38.3 micrometers, which, after testing, prevents the formation of bright spots.

[0073] like Figure 3A and Figure 3B As shown, for display substrates with different structures, adaptive adjustments can be made to the wiring position, sub-pixel arrangement, etc.

[0074] In the technical solution of this embodiment, the minimum distance between the first part 341 and the fourth part 344 can be adjusted in different ways.

[0075] like Figure 6 As shown, in one embodiment, this can be achieved by adjusting the width of the first portion 341 and the second portion 342. Specifically, along the first direction D1, the width of the fifth portion 345 and the sixth portion 346 is greater than the width of the first portion 341 and the second portion 342.

[0076] Specifically, compared with the first sub-image structure, the width of the "arm" portion (i.e., the first portion 341, the second portion 342, the fifth portion 345 and the sixth portion 346) of the "U"-shaped structure of the target sub-pixel structure is reduced along the first direction D1, which can be understood as increasing the minimum distance between the first portion 341 and the fourth portion 344.

[0077] Along the second direction D2, at least a portion of the width of the third part 343 is greater than the width of the seventh part 347. Furthermore, to ensure that the capacitance value of the storage capacitor of the target sub-pixel structure does not decrease, this embodiment further increases the width of the third part 343 along the second direction D2. This ensures that the total area of ​​the target sub-pixel structure remains unchanged or increases, thereby guaranteeing that the capacitance value of the storage capacitor corresponding to the target sub-pixel structure does not decrease.

[0078] To accommodate the width variation of the third portion 343, the width of the scan line 31 is adjusted accordingly in this embodiment. Specifically, to accommodate the width variation of the third portion 343, the width of the scan line 31 is appropriately reduced along... Figure 2 The width of the scan line 31 corresponding to the target sub-pixel structure in the previous row in the indicated direction. This provides sufficient space to accommodate the routing position of the common electrode 34.

[0079] In this embodiment, the minimum distance between the fourth part 344 and the second part 342 can also be adjusted by adjusting the position of the fourth part 344.

[0080] In some embodiments, at least a portion of the orthographic projection of the fourth portion 344 onto the first portion 341 along the first direction D1 does not overlap with the orthographic projection of the second portion 342 onto the first portion 341. Further, in some embodiments, the orthographic projection of the fourth portion 344 onto the first portion 341 along the first direction D1 does not overlap with the orthographic projection of the second portion 342 onto the first portion 341.

[0081] This can be understood as, along with Part 4 344 and Part 2 342 Figure 2 While keeping the lateral vertical distance unchanged, the minimum straight-line distance between the fourth part 344 and the second part 342 can be increased by staggering the fourth part 344 and the second part 342.

[0082] In other embodiments, the bright spots can be avoided by increasing the lateral movement distance of the liquid crystal molecules at the location of the target line.

[0083] like Figure 8 and Figure 9 As shown, in some embodiments, the display substrate includes a semi-via structure 60, which can be designed in different shapes such as circular or square, and is not further limited in this embodiment.

[0084] In this embodiment, the semi-via structure 60 specifically includes a first semi-via 601, a second semi-via 602, and a third semi-via 603.

[0085] The first half-via 601 corresponds to the target sub-pixel structure, the second half-via 602 corresponds to the first sub-pixel structure, and the third half-via 603 is used to realize the electrical connection between the electrode connection part 331 and the common electrode 34.

[0086] like Figure 7 , Figure 8 and Figure 9 As shown, along the second direction D2, the common electrodes 34 of two adjacent rows can be electrically connected through the electrode connection portion 331, and the electrode connection portion 331 and the pixel electrode 33 are disposed in the same layer and made of the same material.

[0087] like Figure 8 As shown, the electrode connection portion 331 and the common electrode 34 are connected by a semi-through hole structure 60.

[0088] The pixel electrode 33 of the sub-pixel structure is electrically connected to the sub-pixel driving circuit corresponding to the sub-pixel structure through the semi-via structure 60. Specifically, it is electrically connected to the data line 32 under the control of the switching transistor controlled by the scan line 31.

[0089] In this embodiment, the orthographic projection of the semi-via structure 60 corresponding to the target sub-pixel structure on the first substrate 30 overlaps with the orthographic projection of the target connection line on the first substrate 30.

[0090] It is important to understand that, generally speaking, the area corresponding to the target connection line is relatively flat, while the presence of the semi-via structure 60 causes a certain height variation in the corresponding area of ​​the display substrate. In this embodiment, the semi-via structure 60 is placed on the target connection line. With a fixed straight length of the target connection line, due to the presence of the semi-via structure 60, the actual distance that the liquid crystal molecules travel laterally along the direction of the target connection line is greater than the straight distance of the target connection line. In other words, it is equivalent to increasing the actual lateral movement distance of the liquid crystal molecules, which can be understood as increasing the lateral flow space of the liquid crystal molecules, reducing the entanglement between liquid crystal molecules, and helping to reduce the possibility of bright spots appearing.

[0091] In some embodiments, the area of ​​the semi-via structure 60 corresponding to the target sub-pixel structure projected onto the first substrate 30 is larger than the area of ​​the first sub-pixel structure projected onto the first substrate 30.

[0092] In some embodiments, the area of ​​the semi-via structure 60 corresponding to the target sub-pixel structure can be increased, which helps to further increase the lateral flow space of liquid crystal molecules, reduce the entanglement between liquid crystal molecules, and reduce the possibility of bright spots appearing.

[0093] This disclosure also provides a display panel, including a display substrate and a counter substrate facing each other, with a liquid crystal layer disposed between the display substrate and the counter substrate, wherein the display substrate is any of the above-mentioned display substrates.

[0094] like Figure 10 As shown, in some embodiments, the display panel further includes a black matrix 39, and the area not covered by the black matrix 39 forms an opening region 100. The display substrate in this embodiment can be an array substrate or a color filter array substrate. When the display substrate is a color filter array substrate, the black matrix 39 is disposed on the color filter array substrate; as... Figure 4A and Figure 4B As shown, when the display substrate is an array substrate, the opposing substrate is a color filter substrate, and the black matrix 39 is disposed on the second substrate 38 of the color filter substrate.

[0095] like Figure 10 and Figure 11 As shown, in some other embodiments, the black matrix 39 can also be used to block the area where bright spots may appear, thereby preventing the bright spots from being observed visually.

[0096] The orthogonal projection of the black matrix 39 onto the first substrate 30 covers the orthogonal projection of the target connection line onto the first substrate 30.

[0097] It should be understood that in other parts, the setting of the black matrix 39 can refer to the design method of related technologies. In the area corresponding to the common electrode 34 of the target sub-pixel structure, the related technologies do not design a black matrix 39. However, in this embodiment, a black matrix 39 can be added for the area of ​​the target connection line, and the newly added black matrix 39 covers the target connection line.

[0098] like Figure 10 and Figure 11 As shown, specifically, in some embodiments, the portion between the first portion 341 and the fourth portion 344, where the distance is less than a preset threshold, is covered. This preset threshold corresponds to the minimum distance at which the bright spot appears; for example, it can be the aforementioned 36 micrometers, and further, it can be the aforementioned 38.3 micrometers. In some embodiments, the black matrix 39 divides the opening region 100 of the target sub-pixel structure into a larger first region 101 and a smaller second region 102, which are mutually independent.

[0099] like Figure 11 As shown, in the region corresponding to the line connecting the target, in some embodiments, the black matrix 39 is perpendicular to the width of the line connecting the target. The width of the black matrix 39 is 6 to 10 micrometers, further, it can be 7 to 9 micrometers, and even further, it can be about 8 micrometers, which can reduce the impact on the opening area while blocking the bright spot.

[0100] like Figure 12 As shown, in some other embodiments, the range of the black matrix 39 can be directly increased so that the black matrix 39 extends directly from the target connection to the scan line 31 corresponding to the target sub-pixel structure. It can be understood that the black matrix 39 covers the position corresponding to the target connection and covers the second region 102. Compared with the production of a narrower black matrix 39, the implementation difficulty of this embodiment is lower.

[0101] Table 1: Transmittance Ratio of Different Color Filters

[0102]

[0103]

[0104] As shown in Table 1, the light transmittance of color resists of different colors in sub-pixels is different. Tests have shown that for white images, green color resists contribute the most to brightness at 72.3%, while blue sub-pixels in the display device contribute relatively less to brightness at 7.63%. Thus, when the target sub-pixel structure corresponds to blue sub-pixels, the impact on the display effect of the corresponding display device is small, and the implementation is relatively easy.

[0105] The above description represents the preferred embodiments of this disclosure. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles described herein, and these improvements and modifications should also be considered within the scope of protection of this disclosure.

Claims

1. A display substrate, comprising a first substrate, and scan lines and data lines located on the first substrate, wherein the scan lines extend along a first direction and are arranged along a second direction on the first substrate, and the data lines are arranged along the first direction and extend along the second direction on the first substrate, wherein the first direction and the second direction are mutually intersecting directions; The display substrate includes multiple pixel structures, each pixel structure includes multiple sub-pixel structures, and each sub-pixel structure includes a common electrode and a pixel electrode. The orthographic projection of the common electrode on the first substrate and the orthographic projection of the pixel electrode on the first substrate have an overlapping area. The sub-pixel structure includes a target sub-pixel structure, and the common electrode of the target sub-pixel structure includes a first part, a second part, a third part, and a fourth part. The first part and the second part are arranged along the first direction and extend along the second direction. On the side of the scan line corresponding to the target sub-pixel structure away from the target sub-pixel structure, the first part and the second part are connected through the third part; On the side of the scan line corresponding to the target sub-pixel structure, the fourth part is connected to the first part on the side of the first part that is close to the second part, and the fourth part is separate from the second part; The plurality of sub-pixel structures further include a first sub-pixel structure, wherein the first sub-pixel structure and the target sub-pixel structure correspond to sub-pixels of different colors, and the common electrode of the first sub-pixel structure includes a fifth part, a sixth part, and a seventh part; The fifth part and the sixth part are arranged along the first direction and extend along the second direction. On the side away from the scan line corresponding to the first sub-pixel structure, the fifth part and the sixth part are connected through the seventh part. Along the first direction, the widths of the fifth and sixth portions are greater than the widths of the first and second portions; Along the second direction, at least a portion of the width of the third portion is greater than the width of the seventh portion; The area of ​​the semi-via structure corresponding to the target sub-pixel structure projected onto the first substrate is greater than the area of ​​the first sub-pixel structure projected onto the first substrate. The target sub-pixel structure corresponds to the blue sub-pixel.

2. The display substrate as claimed in claim 1, wherein, The minimum distance between the second part and the fourth part is greater than half the distance between the first part and the second part.

3. The display substrate as described in claim 2, wherein, The minimum distance between the second part and the fourth part is greater than 60 percent of the distance between the first part and the second part.

4. The display substrate as claimed in claim 1, wherein, The minimum distance between the second part and the fourth part is greater than 36 micrometers.

5. The display substrate as claimed in claim 4, wherein, The minimum distance between the second part and the fourth part is greater than 38.3 micrometers.

6. The display substrate as claimed in claim 1, wherein, Along the first direction, at least a portion of the orthographic projection of the fourth part onto the first part does not overlap with the orthographic projection of the second part onto the first part.

7. The display substrate as claimed in claim 6, wherein, Along the first direction, the orthographic projection of the fourth part onto the first part does not overlap with the orthographic projection of the second part onto the first part.

8. The display substrate as claimed in claim 1, wherein, The display substrate includes a semi-via-hole structure, and the pixel electrode of the target sub-pixel structure is electrically connected to the sub-pixel driving circuit corresponding to the target sub-pixel structure through the semi-via-hole structure. The orthographic projection of the semi-via structure on the first substrate overlaps with the orthographic projection of the target connection line on the first substrate, and the target connection line is the line connecting the second part and the fourth part at the position with the smallest distance.

9. A display device comprising a display substrate opposite to a cell and a counter substrate, wherein the display substrate is the display substrate according to any one of claims 1 to 8.

10. The display device as claimed in claim 9, wherein, The display device further includes a black matrix, the orthographic projection of which on the first substrate covers the orthographic projection of the target connection line on the first substrate, wherein the target connection line is the connection line between the positions where the distance between the second part and the fourth part is the smallest.

11. The display device as claimed in claim 10, wherein, The black matrix divides the opening region of the target sub-pixel structure into a first region and a second region that are independent of each other.

12. The display device as claimed in claim 11, wherein, In the region corresponding to the line connecting the target, the black matrix is ​​perpendicular to the width of the line connecting the target, and the width of the black matrix is ​​6 to 10 micrometers.

13. The display device according to any one of claims 10 to 12, wherein, The display substrate is a color filter array substrate, and the black matrix is ​​disposed on the color filter array substrate, or The display substrate is an array substrate, the opposing substrate is a color filter substrate, and the black matrix is ​​disposed on the color filter substrate.

Images