Display substrate and display device

Abstract

The present application discloses a display substrate and a display device, and relates to the field of display technology. The display substrate includes at least one irregular pixel, and the shape of the boundary line of each irregular pixel close to the peripheral area matches the shape of the boundary line of the irregular display area in the base substrate, so the irregular pixel will not exceed the irregular display area of ​​the display substrate, which is convenient for realizing the narrow frame of the display substrate, and can avoid the image displayed at the boundary line of the irregular display area being jagged, thereby ensuring the display effect of the display device. Moreover, since the area of ​​the orthographic projection of the irregular pixel on the base substrate is smaller than the area of ​​the orthographic projection of the rectangular pixel on the base substrate, the area of ​​the opening formed by the black matrix layer in the area where each rectangular pixel is located is larger than the area of ​​the opening formed in the area where any irregular pixel is located, which can ensure that the brightness of the light emitted by the irregular pixel and the rectangular pixel is smoothly transitioned, and the brightness uniformity of the display device is better.

Description

Technical Field

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

[0002] With the continuous development of display technology, users' demands for special-shaped display devices are constantly increasing. Among them, the shape of the display area of ​​the special-shaped display device is non-rectangular.

[0003] In the related art, the edge of the display area of ​​the special-shaped display device is prone to jaggedness, and the display effect of the display device is poor. Summary of the invention

[0004] The present application provides a display substrate and a display device, which can solve the problem of poor display effect of the display device in the related art. The technical solution is as follows:

[0005] In one aspect, a display substrate is provided, the display substrate comprising:

[0006] A base substrate, wherein the base substrate has a special-shaped display area and a peripheral area surrounding the special-shaped display area;

[0007] A plurality of rectangular pixels are located in the special-shaped display area;

[0008] At least one irregular pixel is located in the irregular display area, and the at least one irregular pixel is closer to the peripheral area than the rectangular pixel, and the shape of the boundary line of each irregular pixel on a side close to the peripheral area matches the shape of the boundary line of the irregular display area;

[0009] And a black matrix layer is located on a side of the plurality of rectangular pixels and the at least one irregular pixel away from the base substrate, and the area of ​​the opening formed by the black matrix layer in the region where each rectangular pixel is located is greater than the area of ​​the opening formed in the region where any irregular pixel is located.

[0010] Optionally, each of the irregular-shaped pixels comprises: a plurality of first sub-pixels, at least one of the plurality of first sub-pixels being an irregular-shaped sub-pixel;

[0011] For each of the irregular-shaped pixels including a plurality of first sub-pixels, the areas of the openings formed by the black matrix layer in the regions where the first sub-pixels are located are equal.

[0012] Optionally, at least part of the boundary line of the irregular display area is an arc, and the shape of the irregular sub-pixel is a triangle, a trapezoid or a pentagon;

[0013] A boundary line between the irregular-shaped sub-pixel and the arc is tangent to the arc.

[0014] Optionally, the shape of the opening formed by the black matrix layer in the area where each of the irregular-shaped sub-pixels is located is the same as the shape of the irregular-shaped sub-pixel.

[0015] Optionally, the plurality of first sub-pixels are arranged along a direction of pixel rows, or the plurality of first sub-pixels are arranged along a direction of pixel columns.

[0016] Optionally, the plurality of first sub-pixels are arranged along a pixel row direction;

[0017] The sum of the lengths of the plurality of first sub-pixels in the pixel row direction is less than or equal to the length of the rectangular pixel in the pixel row direction;

[0018] A length of any first sub-pixel among the plurality of first sub-pixels in a pixel column direction is less than or equal to a length of the rectangular pixel in the pixel column direction.

[0019] Optionally, among the multiple first sub-pixels, the length of the first sub-pixel close to the peripheral area in the pixel row direction is greater than or equal to the length of the first sub-pixel far from the peripheral area in the pixel row direction, and the length of the first sub-pixel close to the peripheral area in the pixel column direction is less than or equal to the length of the first sub-pixel far from the peripheral area in the pixel column direction.

[0020] Optionally, an orthographic projection of an opening formed by the black matrix layer in each region where the first sub-pixel is located on the base substrate is located in the region where the first sub-pixel is located.

[0021] Optionally, each of the first sub-pixels includes: a pixel electrode;

[0022] The orthographic projection of the pixel electrode on the base substrate is located within the orthographic projection of the opening formed by the black matrix layer in the area where the first sub-pixel is located on the base substrate.

[0023] Optionally, the pixel electrode is a hollow electrode.

[0024] Optionally, each of the irregular-shaped sub-pixels further includes: a compensation capacitor connected to the pixel electrode;

[0025] The orthographic projection of the compensation capacitor on the base substrate is located in a region outside the orthographic projection of the opening formed by the black matrix layer in the region where the irregular-shaped sub-pixel is located on the base substrate.

[0026] Optionally, the compensation capacitor includes: a first electrode and a second electrode;

[0027] The first electrode and the pixel electrode are located in the same layer, and the second electrode and the common electrode in the irregular-shaped sub-pixel are located in the same layer;

[0028] Alternatively, the first electrode and the gate electrode in the first sub-pixel are located in the same layer, and the second electrode and the source and drain electrode in the irregular-shaped sub-pixel are located in the same layer.

[0029] Optionally, the first electrode and the second electrode plate are both non-hollow flat plate electrodes.

[0030] Optionally, each of the rectangular pixels includes: a plurality of second sub-pixels, each of the second sub-pixels is a rectangular sub-pixel;

[0031] The openings formed by the black matrix layer in the regions where the second sub-pixels are located have the same area.

[0032] Optionally, an arrangement direction of the plurality of second sub-pixels is the same as an arrangement direction of the plurality of first sub-pixels.

[0033] Optionally, the display substrate further includes: a signal line;

[0034] The signal line is connected to each pixel in the display substrate.

[0035] Optionally, the signal line includes: a plurality of data lines and a plurality of gate lines;

[0036] Each of the data lines is connected to a column of sub-pixels, and each of the gate lines is connected to a row of sub-pixels.

[0037] Optionally, at least one data line among the plurality of data lines is in a bent shape, and at least one sub-pixel in a column of sub-pixels connected to the bent data line is a heteromorphic sub-pixel.

[0038] Optionally, at least one gate line among the plurality of gate lines is in a bent shape, and at least one sub-pixel in a row of sub-pixels connected by the bent gate line is a heteromorphic sub-pixel.

[0039] On the other hand, a display device is provided, the display device comprising: a driving circuit, and the display substrate as described in the above aspect;

[0040] The driving circuit is connected to the pixels in the display substrate and is used to provide driving signals for the pixels.

[0041] The beneficial effects of the technical solution provided by this application include at least:

[0042] The present application provides a display substrate and a display device, the display substrate includes at least one irregular pixel, and the shape of the boundary line of each irregular pixel close to the peripheral area matches the shape of the boundary line of the irregular display area in the base substrate, so the irregular pixel will not exceed the irregular display area of ​​the display substrate, which is convenient for realizing the narrow frame of the display substrate, and can avoid the image displayed at the boundary line of the irregular display area being jagged, thereby ensuring the display effect of the display device. In addition, since the area of ​​the orthographic projection of the irregular pixel on the base substrate is smaller than the area of ​​the orthographic projection of the rectangular pixel on the base substrate, the area of ​​the opening formed by the black matrix layer in the area where each rectangular pixel is located is larger than the area of ​​the opening formed in the area where any irregular pixel is located, which can ensure that the brightness of the light emitted by the irregular pixel and the rectangular pixel is smoothly transitioned, and the brightness uniformity of the display device is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 is a schematic diagram of a display effect of a display device in the related art;

[0045] Figure 2 is a schematic diagram of a partial structure of a display substrate provided in an embodiment of the present application;

[0046] Figure 3 is a structural schematic diagram of a display substrate provided in an embodiment of the present application;

[0047] Figure 4 is a partial structural schematic diagram of another display substrate provided in an embodiment of the present application;

[0048] Figure 5 is a partial structural schematic diagram of another display substrate provided in an embodiment of the present application;

[0049] Figure 6 is a partial structural schematic diagram of another display substrate provided in an embodiment of the present application;

[0050] Figure 7 yes Figure 5 A schematic diagram of a special-shaped pixel is shown;

[0051] Figure 8 yes Figure 5 A schematic diagram of a rectangular pixel is shown;

[0052] Fig. 9 yes Figure 5 A schematic diagram of another type of irregular pixel is shown;

[0053] Fig.10 yes Figure 6 A schematic diagram of a special-shaped pixel is shown;

[0054] Fig.11 yes Figure 6 A schematic diagram of a rectangular pixel is shown;

[0055] Fig.12 yes Figure 6 A schematic diagram of another type of irregular pixel is shown;

[0056] Fig.13 is a schematic structural diagram of a special-shaped pixel provided in an embodiment of the present application;

[0057] Fig.14 is a schematic diagram of a special-shaped pixel and a black matrix layer provided in an embodiment of the present application;

[0058] Fig.15 is a schematic structural diagram of another special-shaped pixel provided in an embodiment of the present application;

[0059] Fig.16 yes Fig.15 A schematic diagram of the local structure of a shaped pixel is shown;

[0060] Fig.17 is a schematic diagram of a transistor and a common electrode provided in an embodiment of the present application;

[0061] Fig.18 is a partial structural schematic diagram of another display substrate provided in an embodiment of the present application;

[0062] Fig.19 is a partial structural schematic diagram of another display substrate provided in an embodiment of the present application;

[0063] Fig. 20 is a structural schematic diagram of a display device provided in an embodiment of the present application;

[0064] Fig.21 It is a schematic diagram of the structure of another display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0066] With the continuous development of display technology, the display substrate used in smart phones can usually be a special-shaped display substrate, and the shape of the display area of ​​the special-shaped display substrate is non-rectangular. In the related art, the pixels in the special-shaped display substrate are rectangular pixels, and the rectangular pixels are arranged in a zigzag shape at the edge of the display area of ​​the special-shaped display substrate, which affects the display effect.

[0067] For example, refer to Figure 1 , assuming that the display area of ​​the special-shaped display substrate is in an arc shape, and the image displayed by the special-shaped display substrate is a white image, and the peripheral area surrounding the display area in the special-shaped display substrate is black. Then, the image displayed at the edge of the special-shaped display substrate is jagged, and the display effect of the special-shaped display substrate is poor.

[0068] Figure 2 Schematic diagram of a partial structure of a display substrate provided in an embodiment of the present application. Figure 2 It can be seen that the display substrate 10 may include: a base substrate 101, a plurality of rectangular pixels 102, and at least one irregular pixel 103. The irregular pixel 103 may refer to a pixel that is not rectangular in shape. For example, Figure 2 A rectangular pixel 102 and four irregular-shaped pixels 103 are shown. Figure 3 is a schematic diagram of a display substrate provided in an embodiment of the present application, with reference to Figure 3 The display substrate 10 further includes a black matrix layer 104 .

[0069] refer to Figure 2 The substrate 101 may have a profiled display region 101a and a peripheral region 101b surrounding the profiled display region 101a. The plurality of rectangular pixels 102 and at least one profiled pixel 103 may be located in the profiled display region 101a. Furthermore, the at least one profiled pixel 103 is closer to the peripheral region 101b than the rectangular pixel 102, and the shape of the boundary line of each profiled pixel 103 on one side close to the peripheral region 101b matches the shape of the boundary line 101a1 of the profiled display region 101a.

[0070] That is, the pixel far from the boundary line 101a1 of the irregular display area 101a may be a rectangular pixel 102, and the pixel close to the boundary line 101a1 of the irregular display area 101a may be a irregular pixel 103. Moreover, by making the shape of the irregular pixel 103 close to the boundary line 101a1 of the irregular display area 101a match the shape of the boundary line 101a1 of the irregular display area 101a, the irregular pixel will not exceed the irregular display area of ​​the display substrate, which is convenient for realizing the narrow frame of the display substrate, and can avoid the image displayed at the boundary line 101a1 of the irregular display area 101a from being jagged, thereby ensuring the display effect of the display device.

[0071] It should be noted that the reference Figure 3 The rectangular pixel 102 and the irregular pixel 103 can be located on the same side of the substrate 101, and the rectangular pixel 102 and the irregular pixel 103 can be arranged in the same layer. For example, each film layer included in the rectangular pixel 102 and the corresponding film layer in the irregular pixel 103 can be prepared by the same patterning process.

[0072] In the examples of this application, refer to Figure 3 The black matrix layer 104 may be located on a side of the plurality of rectangular pixels 102 and at least one irregular pixel 103 away from the substrate 101. Figure 2 The black matrix layer 104 may form an opening in the region where each pixel in the plurality of rectangular pixels 102 and at least one irregular-shaped pixel 103 is located, so that light emitted by each pixel can be emitted from the opening, thereby achieving normal display of the display device.

[0073] Among them, reference Figure 2 , the area of ​​the opening a formed by the black matrix layer 104 in the area where each rectangular pixel 102 is located is larger than the area of ​​the opening b formed in the area where any irregular pixel 103 is located. Since the area of ​​the orthographic projection of the irregular pixel 103 on the base substrate 101 is smaller than the area of ​​the orthographic projection of the rectangular pixel 102 on the base substrate 101, the area of ​​the opening b of the black matrix layer 104 in the area where the irregular pixel 103 is located is set smaller, so that the brightness of the light emitted by the irregular pixel 103 and the rectangular pixel 102 can be smoothly transitioned, and the visual comfort of the display device is better and the brightness uniformity is better. Among them, Figure 3 Only the position of the black matrix layer 104 relative to the rectangular pixel 102 and the irregular pixel 103 is illustrated, and the opening of the black matrix layer 104 in the rectangular pixel 102 or the irregular pixel 103 is not illustrated.

[0074] In summary, the embodiment of the present application provides a display substrate, which includes at least one irregular pixel, and the shape of the boundary line of each irregular pixel close to the peripheral area matches the shape of the boundary line of the irregular display area in the base substrate, so the irregular pixel will not exceed the irregular display area of ​​the display substrate, which is convenient for realizing the narrow frame of the display substrate, and can avoid the image displayed at the boundary line of the irregular display area being jagged, thereby ensuring the display effect of the display device. In addition, since the area of ​​the orthographic projection of the irregular pixel on the base substrate is smaller than the area of ​​the orthographic projection of the rectangular pixel on the base substrate, the area of ​​the opening formed by the black matrix layer in the area where each rectangular pixel is located is larger than the area of ​​the opening formed in the area where any irregular pixel is located, which can ensure that the brightness of the light emitted by the irregular pixel and the rectangular pixel is smoothly transitioned, and the brightness uniformity of the display device is good.

[0075] Figure 4 Schematic diagram of the partial structure of another display substrate provided in an embodiment of the present application. Figure 4 It can be seen that each irregular-shaped pixel 103 may include: a plurality of first sub-pixels 1031 , at least one first sub-pixel 1031 of the plurality of first sub-pixels 1031 is an irregular-shaped sub-pixel.

[0076] For example, Figure 4 , four irregular pixels 103 (respectively 103a, 103b, 103c, and 103d) are shown, and each irregular pixel 103 includes three first sub-pixels 1031 (respectively 1031a, 1031b, and 1031c). Among them, each of the first irregular pixel 103a, the third irregular pixel 103c, and the fourth irregular pixel 103d is an irregular sub-pixel, the first first sub-pixel 1031a of the second irregular pixel 103b is an irregular sub-pixel, and the second first sub-pixel 1031b and the third first sub-pixel 1031c are not irregular sub-pixels.

[0077] In the embodiment of the present application, the three first sub-pixels 1031 included in each irregular pixel 103 may be a red (red, R) sub-pixel 1031a, a green (green, G) sub-pixel 1031b, and a blue (blue, B) sub-pixel 1031c. The color of the light emitted by the red sub-pixel 1031a is red, the color of the light emitted by the green sub-pixel 1031b is green, and the color of the light emitted by the blue sub-pixel 1031c is blue.

[0078] Since the shape of the boundary line of the side of the irregular pixel 103 close to the peripheral area 101b matches the shape of the boundary line of the irregular display area 101a, generally, the areas of the orthographic projections of the plurality of first sub-pixels 1031 included in the irregular pixel 103 on the base substrate 101 are not equal. As a result, the brightness of the light emitted by each first sub-pixel 1031 included in the irregular pixel 103 is inconsistent, which leads to color deviation. For example, the brightness of the light emitted by the first sub-pixel 1031 with a larger orthographic projection area on the base substrate 101 is larger, while the brightness of the light emitted by the first sub-pixel 1031 with a smaller orthographic projection area on the base substrate 101 is smaller.

[0079] Therefore, in the embodiment of the present application, for each of the irregularly shaped pixels 103 included in the multiple first sub-pixels 1031, the areas of the openings formed by the black matrix layer 104 in the regions where the first sub-pixels 1031 are located are equal, so that the aperture ratios of the first sub-pixels 1031 can be consistent, and thus the brightness of the light emitted by the first sub-pixels 1031 can be consistent, thereby avoiding color deviation.

[0080] Example, reference Figure 4 For the three first sub-pixels 1031 included in the first irregular pixel 103a, the area of ​​the opening b1 formed by the black matrix layer 104 in the area where the first first sub-pixel 1031a is located, the area of ​​the opening b2 formed in the area where the second first sub-pixel 1031b is located, and the area of ​​the opening b3 formed in the area where the third first sub-pixel 1031c is located are equal. Figure 4 The shapes of the opening b1, the opening b2, and the opening b3 are all rectangular.

[0081] refer to Figure 4 It can be seen that at least part of the boundary line of the irregular display area 101a can be an arc, and the shape of the irregular sub-pixel can be a triangle, a trapezoid or a pentagon. The boundary line adjacent to the irregular sub-pixel and the arc is tangent to the arc. The shape of the irregular sub-pixel can refer to the shape of the orthographic projection of the irregular sub-pixel on the substrate 101.

[0082] Example, reference Figure 4 , the first first sub-pixel 1031a, the second first sub-pixel 1031b, and the third first sub-pixel 1031c in the first irregular pixel 103a are all in the shape of a trapezoid, and the hypotenuse of the trapezoid is tangent to the boundary line of the irregular display area 101a. The first first sub-pixel 1031a in the second irregular pixel 103b is in the shape of a pentagon. The target side in the pentagon is tangent to the boundary line of the irregular display area 101a, and the extension direction of the target side intersects with the extension direction of any other side in the pentagon except the target side. The first first sub-pixel 1031a in the third irregular pixel 103c is in the shape of a triangle, and the hypotenuse of the triangle is tangent to the boundary line of the irregular display area 101a. The second first sub-pixel 1031b and the third first sub-pixel 1031c in the third irregular pixel 103c are both in the shape of a trapezoid, and the hypotenuse of the trapezoid may be tangent to the boundary line of the irregular display area 101a. The first first sub-pixel 1031a, the second first sub-pixel 1031b, and the third first sub-pixel 1031c in the fourth irregular-shaped pixel 103d are all in the shape of a trapezoid, and the hypotenuse of the trapezoid may be tangent to the boundary line of the irregular-shaped display area 101a.

[0083] Figure 5 is a partial structural diagram of another display substrate provided in an embodiment of the present application. Figure 5 The shape of the opening formed by the black matrix layer 104 in the region where each irregular sub-pixel is located may be the same as the shape of the irregular sub-pixel. For example, if the shape of the irregular sub-pixel is a triangle, the shape of the opening formed by the black matrix layer 104 in the region where the irregular sub-pixel is located is also a triangle.

[0084] In the embodiment of the present application, since the light emitted by each sub-pixel is emitted through the opening formed by the black matrix layer 104 in the area where the sub-pixel is located, the shape of the image displayed in the area where the sub-pixel is located in the display substrate 10 is the same as the shape of the opening formed by the black matrix layer 104 in the area where the sub-pixel is located. That is, the shape of the opening formed by the black matrix layer 104 in the area where the irregular sub-pixel is located can match the shape of the boundary line of the irregular display area 101a, so that the shape of the image displayed in the area where the sub-pixel is located in the display substrate 10 matches the shape of the boundary line of the irregular display area 101a, thereby avoiding the image displayed at the boundary line of the irregular display area 101a from being jagged, and the display effect of the display device is better.

[0085] refer to Figure 4 and Figure 5 It can be seen that the plurality of first sub-pixels 1031 included in each irregular pixel 103 can be arranged along the pixel row direction X. Of course, referring to Figure 6 The multiple first sub-pixels 1031 included in each irregular pixel 103 can be arranged along the pixel column direction Y, which is not limited in the embodiment of the present application.

[0086] As an optional implementation, Figure 7 yes Figure 5 A schematic diagram of a special-shaped pixel is shown in FIG. Figure 8 yes Figure 5 Assume that a plurality of first sub-pixels 1031 are arranged along the pixel row direction X. Figures 5 to 8 , the sum d1 of the lengths of the plurality of first sub-pixels 1031 in the pixel row direction X is less than or equal to the length d2 of the rectangular pixel 102 in the pixel row direction X, that is, d1=m1+m2+m3≤d2. The length of any first sub-pixel 1031 in the pixel column direction Y is less than or equal to the length h of the rectangular pixel 102 in the pixel column direction Y. For example, Figure 7 The length n4 of the third first sub-pixel 1031c in the pixel column direction Y is smaller than the length h of the rectangular pixel 102 in the pixel column direction Y, that is, n4<h.

[0087] Among them, reference Fig. 9, if the sum d1 of the lengths of the plurality of first sub-pixels 1031 in the pixel row direction X is equal to the length d2 of the rectangular pixel 102 in the pixel row direction X, and the length n of each first sub-pixel 1031 in the pixel column direction Y is equal to the length h1 of the rectangular pixel 102 in the pixel column direction Y, that is, d1=m1+m2+m3=d2, and n=h. Then the shape of a first sub-pixel 1031a near the peripheral area 101b among the plurality of first sub-pixels 1031 can be a pentagon. The target side in the pentagon is tangent to the boundary line of the special-shaped display area 101a, and the extension direction of the target side intersects with the extension direction of any other side of the pentagon except the target side.

[0088] It should be noted that, since the shape of the first sub-pixel 1031 close to the peripheral area 101b among the plurality of first sub-pixels 1031 is more susceptible to the shape of the boundary line of the irregular display area 101a, in order to make the areas of the orthographic projections of the first sub-pixels 1031 among the plurality of first sub-pixels 1031 on the substrate 101 equal to ensure the display effect of the display device, in the embodiment of the present application, the length of the first sub-pixel 1031 close to the peripheral area 101b among the plurality of first sub-pixels 1031 in the pixel row direction X may be greater than or equal to the length of the first sub-pixel 1031 away from the peripheral area 101b in the pixel row direction X. Furthermore, the length of the first sub-pixel 1031 close to the peripheral area 101b in the pixel column direction Y may be less than or equal to the length of the first sub-pixel 1031 away from the peripheral area 101b in the pixel column direction Y.

[0089] Thus, by making the length of the first sub-pixel 1031 near the peripheral area 101b larger in the pixel row direction X and making the length of the first sub-pixel 1031 near the peripheral area 101b smaller in the pixel column direction Y, it is possible to ensure that the area of ​​the orthographic projection of the first sub-pixel 1031 near the peripheral area 101b on the substrate 101 is equal to the area of ​​the orthographic projection of the first sub-pixel 1031 far from the peripheral area 101b on the substrate 101. This facilitates the provision of openings of the same area in the black matrix layer 104 in the areas where the plurality of first sub-pixels 1031 are located, thereby ensuring the display effect of the display device.

[0090] Furthermore, by adjusting the length of the first sub-pixel 1031 near the peripheral area 101b in the pixel row direction X and the pixel column direction Y, the shape of the first sub-pixel 1031 near the peripheral area 101b can be matched with the shape of the boundary line of the special-shaped display area 101a, thereby ensuring the display effect of the display device.

[0091] Example, reference Figure 7, the length m1 of the first first sub-pixel 1031a in the first irregular pixel 103a in the pixel row direction X is greater than the length m2 of the second first sub-pixel 1031b in the pixel row direction X. Moreover, the length m2 of the second first sub-pixel 1031b in the pixel row direction X is greater than the length m3 of the third first sub-pixel 1031c in the pixel row direction X. That is, m1>m2>m3.

[0092] And, reference Figure 7 , each of the three first sub-pixels 1031 is in the shape of a trapezoid, wherein each first sub-pixel 1031 has a first side and a second side that are parallel to each other, and the first side is closer to the peripheral area 101b than the second side. Figure 7 , the length of the second side of the first first sub-pixel 1031a is equal to the length of the first side of the second first sub-pixel 1031b, and the length of the second side of the second first sub-pixel 1031b is equal to the length of the first side of the third first sub-pixel 1031c. Moreover, the length n1 of the first side of the first first sub-pixel 1031a is less than the length n2 of the second side of the first first sub-pixel 1031a. The length n2 of the first side of the second first sub-pixel 1031b is less than the length n3 of the second side of the second first sub-pixel 1031b. The length n3 of the first side of the third first sub-pixel 1031c is less than the length n4 of the second side of the third first sub-pixel 1031c. That is, n1 <n2<n3<n4。

[0093] Since the shape of the opening formed by the black matrix layer 104 in the area where the irregular sub-pixel is located matches the shape of the boundary line of the irregular display area 101a, the size of the side of the opening corresponding to the smaller side in the first sub-pixel 1031 is also smaller, and the size of the side of the opening corresponding to the larger side in the first sub-pixel 1031 is also larger.

[0094] Example, reference Figure 7, the length w1 of the opening formed by the black matrix layer 104 in the region where the first first sub-pixel 1031a is located in the pixel row direction X is greater than the length w2 of the opening formed by the black matrix layer 104 in the region where the second first sub-pixel 1031b is located in the pixel row direction X. The length w2 of the opening formed by the black matrix layer 104 in the region where the second first sub-pixel 1031b is located in the pixel row direction X is greater than the length w3 of the opening formed by the black matrix layer 104 in the region where the third first sub-pixel 1031c is located in the pixel row direction X, that is, w1>w2>w3. Moreover, the length r1 of the opening formed by the black matrix layer 104 in the region where the first first sub-pixel 1031a is located in the pixel column direction Y is less than the length r2 of the opening formed by the black matrix layer 104 in the region where the first second sub-pixel 1031b is located in the pixel column direction Y. The length r2 of the opening formed by the black matrix layer 104 in the region where the first second sub-pixel 1031b is located in the pixel column direction Y is less than the length r3 of the opening formed by the black matrix layer 104 in the region where the first third sub-pixel 1031c is located in the pixel column direction Y, that is, r1<r2<r3.

[0095] As another alternative implementation Fig.10 is Figure 6 a schematic diagram of a special-shaped pixel shown in Fig.11 is Figure 6 a schematic diagram of a rectangular pixel shown in. Assume that multiple first sub-pixels 1031 are arranged in the pixel column direction Y. Combining Figure 6 Fig.10 and Fig.11 , the sum g1 of the lengths of the multiple first sub-pixels 1031 in the pixel column direction Y is less than or equal to the length g2 of the rectangular pixel 102 in the pixel column direction Y, that is, g1 = s1 + s2 + s3 < g2. The length of any one of the multiple first sub-pixels 1031 in the pixel row direction X is less than or equal to the length k of the rectangular pixel 102 in the pixel row direction X. For example, Fig. 9 the length f4 of the third first sub-pixel 1031c in the pixel row direction X in

[0096] is less than the length k of the rectangular pixel 102 in the pixel row direction X, that is, f4 < k.

[0096] Among them, referring to Fig.12, if the sum of the lengths g1 of the plurality of first sub-pixels 1031 in the pixel column direction Y is equal to the length g2 of the rectangular pixel 102 in the pixel column direction Y, and the length e of each first sub-pixel 1031 in the pixel row direction X is equal to the length k of the rectangular pixel 102 in the pixel row direction, that is, g1=s1+s2+s3=g2, and e=k. Then the shape of a first sub-pixel 1031 near the peripheral area 101b among the plurality of first sub-pixels 1031 can be a pentagon. The target side in the pentagon is tangent to the boundary line of the special-shaped display area 101a, and the extension direction of the target side intersects with the extension direction of any other side of the pentagon except the target side.

[0097] It should be noted that, since the shape of the first sub-pixel 1031 close to the peripheral area 101b among the plurality of first sub-pixels 1031 is more susceptible to the shape of the boundary line of the irregular display area 101a, in order to make the areas of the orthographic projections of the first sub-pixels 1031 among the plurality of first sub-pixels 1031 on the substrate 101 equal to ensure the display effect of the display device, in the embodiment of the present application, the length of the first sub-pixel 1031 close to the peripheral area 101b among the plurality of first sub-pixels 1031 in the pixel column direction Y may be greater than or equal to the length of the first sub-pixel 1031 away from the peripheral area 101b in the pixel column direction Y. Furthermore, the length of the first sub-pixel 1031 close to the peripheral area 101b in the pixel row direction X may be less than or equal to the length of the first sub-pixel 1031 away from the peripheral area 101b in the pixel row direction X.

[0098] Thus, by making the length of the first sub-pixel 1031 near the peripheral area 101b in the pixel row direction Y smaller and making the length of the first sub-pixel 1031 near the peripheral area 101b in the pixel column direction Y larger, it is possible to ensure that the area of ​​the orthographic projection of the first sub-pixel 1031 near the peripheral area 101b on the base substrate 101 is equal to the area of ​​the orthographic projection of the first sub-pixel 1031 far from the peripheral area 101b on the base substrate 101. This facilitates the provision of openings of the same area in the black matrix layer 104 in the areas where the plurality of first sub-pixels 1031 are located, thereby ensuring the display effect of the display device.

[0099] Furthermore, by adjusting the length of the first sub-pixel 1031 near the peripheral area 101b in the pixel row direction X and the pixel column direction Y, the shape of the first sub-pixel 1031 near the peripheral area 101b can be matched with the shape of the boundary line of the special-shaped display area 101a, thereby ensuring the display effect of the display device.

[0100] Example, reference Fig.10, the length s1 of the first first sub-pixel 1031a in the first irregular pixel 103a in the pixel column direction Y is greater than the length s2 of the second first sub-pixel 1031b in the pixel column direction Y. Moreover, the length s2 of the second first sub-pixel 1031b in the pixel column direction Y is greater than the length s3 of the third first sub-pixel 1031c in the pixel column direction Y. That is, s1>s2>s3.

[0101] And, reference Fig.10 , each of the three first sub-pixels 1031 is in the shape of a trapezoid, wherein each first sub-pixel 1031 has a first side and a second side that are parallel to each other, and the first side is closer to the peripheral area 101b than the second side. Fig.10 , the length of the second side of the first first sub-pixel 1031a is equal to the length of the first side of the second first sub-pixel 1031b, and the length of the second side of the second first sub-pixel 1031b is equal to the length of the first side of the third first sub-pixel 1031c. Moreover, the length f1 of the first side of the first sub-pixel 1031a is less than the length f2 of the second side of the first sub-pixel 1031a. The length f2 of the first side of the second first sub-pixel 1031b is less than the length f3 of the second side of the second first sub-pixel 1031b. The length f3 of the first side of the third first sub-pixel 1031c is less than the length f4 of the second side of the third first sub-pixel 1031c. That is, f1 <f2<f3<f4。

[0102] In the embodiment of the present application, the orthographic projection of the opening formed by the black matrix layer 104 in the region where each first sub-pixel 1031 is located on the base substrate 101 is located in the region where the first sub-pixel 1031 is located. The orthographic projection of the opening formed by the black matrix layer 104 in the region where the first sub-pixel 1031 is located on the base substrate 101 is the opening region of the first sub-pixel 1031. Moreover, the light emitted by the first sub-pixel 1031 can be emitted from the opening region.

[0103] Fig.13 Schematic diagram of a special-shaped pixel provided by an embodiment of the present application. Fig.13 It can be seen that each irregular sub-pixel 1031 may include: a pixel electrode 10311. The orthographic projection of the pixel electrode 10311 on the base substrate 101 may be located within the orthographic projection of the opening formed by the black matrix layer 104 in the area where the irregular sub-pixel 1031 is located on the base substrate 101. Optionally, the pixel electrode 10311 may be a hollow electrode.

[0104] For example, Fig.13 Three irregular-shaped sub-pixels 1031 are shown in FIG. Fig.14The black matrix layer 104 may have three openings b, and the orthographic projection of the pixel electrode 10311 included in each irregular sub-pixel 1031 on the base substrate 101 is located within the orthographic projection of one opening b on the base substrate 101 .

[0105] Optionally, the shape of the pixel electrode 10311 may be the same as the shape of the opening formed by the black matrix layer 104 in the area where the first sub-pixel 1031 is located. Figure 7 and Fig.13 The opening formed by the black matrix layer 104 in the area where the first sub-pixel 1031 is located is a trapezoid, and the shape of the pixel electrode 10311 is also a trapezoid.

[0106] In the examples of this application, refer to Fig.14 Each irregular sub-pixel 1031 may further include: a common electrode 10312 and a liquid crystal layer 10313. The pixel electrode 10311, the common electrode 10312, and the liquid crystal layer 10313 may be located on the same side of the base substrate 101. The common electrode 10312 and the pixel electrode 10311 may be used to drive the liquid crystal in the liquid crystal layer 10313 to deflect.

[0107] Example, reference Fig.14 , the common electrode 10312 may be located on one side of the base substrate 101, the pixel electrode 10311 may be located on the side of the common electrode 10312 away from the base substrate 101, and the liquid crystal layer 10313 may be located on the side of the pixel electrode 10311 away from the common electrode 10312. Alternatively, the pixel electrode 10311 may be located on one side of the base substrate 101, the common electrode 10312 may be located on the side of the pixel electrode 10311 away from the base substrate 101, and the liquid crystal layer 10313 may be located on the side of the common electrode 10312 away from the base substrate 101. Alternatively, the pixel electrode 10311 may be located on one side of the base substrate 101, the liquid crystal layer 10313 may be located on the side of the pixel electrode 10311 away from the base substrate 101, and the common electrode may be located on the side of the liquid crystal layer 10313 away from the base substrate 101.

[0108] Fig.15 is a schematic diagram of the structure of another special-shaped pixel provided in an embodiment of the present application. Fig.15 Each irregular sub-pixel 1031 may include: a compensation capacitor 10314 connected to the pixel electrode 10311, and the orthographic projection of the compensation capacitor 10314 on the base substrate 101 is located outside the orthographic projection of the opening formed by the black matrix layer 104 in the area where the irregular sub-pixel 1031 is located on the base substrate 101. Fig.15The shape of the compensation capacitor 10314 shown in the figure does not represent the actual shape of the compensation capacitor 10314. The compensation capacitor 10314 can actually be of any shape, as long as the orthographic projection of the compensation capacitor 10314 on the base substrate 101 does not overlap with the orthographic projection of the pixel electrode 10311 on the base substrate 101.

[0109] Since the area of ​​the orthographic projection of the pixel electrode 10311 in the irregular sub-pixel 1031 on the substrate 101 is smaller than the area of ​​the orthographic projection of the pixel electrode in other sub-pixels (e.g., rectangular sub-pixels) on the substrate 101, the storage capacitance of the irregular sub-pixel 10311 is smaller than the storage capacitance of other sub-pixels. In the embodiment of the present application, a compensation capacitor 10314 connected to the pixel electrode 10311 is provided in the irregular sub-pixel 1031, which can reduce the difference in storage capacitance between the irregular sub-pixel 1031 and other sub-pixels, thereby reducing the charging difference between the irregular sub-pixel 1031 and the rectangular sub-pixel.

[0110] In the embodiment of the present application, the compensation capacitor 10314 may include: a first electrode and a second electrode. The first electrode may be located in the same layer as the pixel electrode 10311, and the second electrode may be located in the same layer as the common electrode 10312 in the shaped sub-pixel 1031. A passivation layer (PVX) may be provided between the first electrode and the second electrode. Alternatively, the first electrode may be located in the same layer as the gate electrode in the first sub-pixel 1031, and the second electrode may be located in the same layer as the source and drain electrode in the shaped sub-pixel 1031. A gate insulator (GI) may be provided between the first electrode and the second substrate.

[0111] Among them, the first electrode and the second electrode can be non-hollow flat electrodes, which can avoid the first electrode and the second electrode occupying a large space, resulting in a larger border width of the display device and affecting the screen-to-body ratio of the display device, under the premise that the storage capacitance of the irregular sub-pixel 1031 is consistent with that of other sub-pixels.

[0112] refer to Figures 4 to 6 , Figure 8 as well as Fig.11 Each rectangular pixel 102 may include: a plurality of second sub-pixels 1021. For example, 4 to Figure 6 , Figure 8 as well as Fig.11The rectangular pixel 102 in the embodiment includes three second sub-pixels 1021, namely, a first second sub-pixel 1021a, a second second sub-pixel 1021b, and a third second sub-pixel 1021c. Each second sub-pixel 1021 may be a rectangular sub-pixel. In addition, in order to ensure that the brightness of the light emitted by each second sub-pixel 1021 is consistent, the area of ​​the opening formed by the black matrix layer 104 in the area where each second sub-pixel 1021 is located may be equal.

[0113] Optionally, the shape of the opening formed by the black matrix layer 104 in the area where each second sub-pixel 1021 is located may be the same as the shape of the second sub-pixel 1021. That is, the opening formed by the black matrix layer 104 in the area where each second sub-pixel 1021 is located is a rectangle.

[0114] In the embodiment of the present application, the arrangement direction of the plurality of second sub-pixels 1021 may be the same as the arrangement direction of the plurality of first sub-pixels 1031. Figure 4 and Figure 5 , the arrangement direction of the plurality of first sub-pixels 1031 is the pixel row direction X, and the arrangement direction X of the plurality of second sub-pixels 1021 is also the pixel row direction. Figure 6 , the arrangement direction of the plurality of first sub-pixels 1031 is the pixel column direction Y, and the arrangement direction of the plurality of second sub-pixels 1021 is also the pixel column direction Y.

[0115] Fig.16 yes Fig.15 The local structure diagram of the irregular pixel shown in Figure 2 is shown in Figure 2. Fig.16 It can be seen that the irregular pixel 103 may further include a transistor M0 . The gate of the transistor M0 may be connected to the gate line, the source of the transistor M0 may be connected to the data line, and the drain of the transistor M0 may be connected to the pixel electrode 10311 .

[0116] Fig.17 is a schematic diagram of a transistor and a common electrode provided in an embodiment of the present application. Fig.17 The capacitors in the display substrate 10 may include: a storage capacitor Cs formed by the wiring of the pixel electrode 10311 and the wiring of the common electrode 10312 , a compensation capacitor C1 formed by the first electrode and the second electrode, and a liquid crystal capacitor Clc formed by the pixel electrode 10311 and the common electrode 10312 .

[0117] Fig.18 FIG. 1 is a partial structural diagram of another display substrate provided in an embodiment of the present application. Fig.18 It can be seen that the display substrate 10 may further include: a signal line 105. The signal line 105 may be connected to each pixel in the display substrate 10. For example, referring to Fig.18The signal line 105 can be connected to each rectangular pixel 102 and each irregular pixel 102 in the display substrate 10 .

[0118] refer to Fig.18 The signal line 105 may include: a plurality of data lines 1051 and a plurality of gate lines 1052. Fig.18 9 data lines 1051 and 2 gate lines 1052 are shown in FIG. Each data line 1051 may be connected to a column of sub-pixels, and each gate line 1052 may be connected to a row of sub-pixels.

[0119] As a possible scenario, refer to Fig.18 , the multiple sub-pixels included in each pixel are arranged along the pixel row direction X. Since the length of the irregular pixel 103 in the pixel row direction X is different from the length of the rectangular pixel 102 in the pixel row direction X, in order to enable the data line 1051 to connect the first sub-pixel 1031 in the irregular pixel 103 and the second sub-pixel 1021 in the rectangular pixel 102, at least one data line 1051 among the multiple data lines 1051 may be bent. Moreover, at least one sub-pixel in a column of sub-pixels connected by the bent data line 1051 is an irregular sub-pixel.

[0120] As another possible scenario, refer to Fig.19 , the multiple sub-pixels included in each pixel are arranged along the pixel column direction Y. Since the length of the irregular pixel 103 in the pixel column direction Y is different from the length of the rectangular pixel 102 in the pixel column direction Y, in order to enable the gate line 1052 to connect the first sub-pixel in the irregular pixel 103 and the second sub-pixel 1021 in the rectangular pixel 102, at least one gate line 201 among the multiple gate lines can be bent. Moreover, at least one sub-pixel in a row of sub-pixels connected by the bent gate line 1052 is an irregular sub-pixel. Among them, Fig.19 Two data lines 1051 and nine gate lines 1052 are shown.

[0121] In summary, the embodiment of the present application provides a display substrate, which includes at least one irregular pixel, and the shape of the boundary line of each irregular pixel close to the peripheral area matches the shape of the boundary line of the irregular display area in the base substrate, so the irregular pixel will not exceed the irregular display area of ​​the display substrate, which is convenient for realizing the narrow frame of the display substrate, and can avoid the image displayed at the boundary line of the irregular display area being jagged, thereby ensuring the display effect of the display device. In addition, since the area of ​​the orthographic projection of the irregular pixel on the base substrate is smaller than the area of ​​the orthographic projection of the rectangular pixel on the base substrate, the area of ​​the opening formed by the black matrix layer in the area where each rectangular pixel is located is larger than the area of ​​the opening formed in the area where any irregular pixel is located, which can ensure that the brightness of the light emitted by the irregular pixel and the rectangular pixel is smoothly transitioned, and the brightness uniformity of the display device is good.

[0122] Fig. 20 is a schematic diagram of the structure of a display device provided in an embodiment of the present application. Fig. 20 It can be seen that the display device may further include: a driving circuit 20 and a display substrate 10 as provided in the above embodiment. The driving circuit 20 may be connected to pixels (rectangular pixels 102 and irregular pixels 103) in the display substrate to provide driving signals for the pixels.

[0123] Among them, reference Fig. 20 , the drive circuit 20 may include: a gate drive circuit 101 and a source drive circuit 102. The gate drive circuit 101 may be connected to each gate line 1052 to provide a gate drive signal to each gate line 1052. Each gate line 1052 may be connected to a row of sub-pixels. The source drive circuit 202 may be connected to each data line 1051 to provide a data signal to each data line 1051. Each data line 1051 may be connected to a column of sub-pixels.

[0124] Fig.21 is a schematic diagram of the structure of another display device provided in an embodiment of the present application. Fig.21 It can be seen that the display device may include: a backlight source 30. The backlight source 30 may be located on a side of the base substrate 101 away from the rectangular pixels 102 and the irregular pixels 103. The backlight source 30 may be used to provide backlight for the display substrate 10.

[0125] It should be noted that Fig.18 and Fig.19 The partial schematic diagrams shown are Fig. 20 The display device shown in FIG. 1 includes a schematic diagram of the upper left corner of a display substrate. Fig. 20The upper right corner, lower left corner, and lower right corner boundary lines of the special-shaped display area of ​​the display substrate 10 in the display device are all arcs, so the upper right corner, lower left corner, and lower right corner of the display substrate can be referred to in the schematic diagram. Fig.18 and Fig.19 , the embodiments of the present application will not be described in detail here.

[0126] Optionally, the display device may be a liquid crystal display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, or any other product or component with a display function.

[0127] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display substrate, characterized in that: The display substrate comprises: A base substrate, wherein the base substrate has a special-shaped display area and a peripheral area surrounding the special-shaped display area; A plurality of rectangular pixels are located in the special-shaped display area; At least one irregular pixel is located in the irregular display area, and the at least one irregular pixel is closer to the peripheral area than the rectangular pixel, and the shape of the boundary line of each irregular pixel on a side close to the peripheral area matches the shape of the boundary line of the irregular display area; and a black matrix layer, which is located on a side of the plurality of rectangular pixels and the at least one irregular-shaped pixel away from the base substrate, and the area of ​​an opening formed by the black matrix layer in a region where each rectangular pixel is located is larger than the area of ​​an opening formed in a region where any irregular-shaped pixel is located; Each of the irregular-shaped pixels comprises: a plurality of first sub-pixels, at least one of the plurality of first sub-pixels is an irregular-shaped sub-pixel; each of the first sub-pixels comprises: a pixel electrode, the pixel electrode is a hollow electrode; the orthographic projection of the pixel electrode on the base substrate is located within the orthographic projection of the opening formed by the black matrix layer in the region where the first sub-pixel is located on the base substrate; Each of the irregular sub-pixels further includes: a compensation capacitor connected to the pixel electrode, wherein the orthographic projection of the compensation capacitor on the base substrate is located outside the orthographic projection of the opening formed by the black matrix layer in the area where the irregular sub-pixel is located on the base substrate.

2. The display substrate according to claim 1, characterized in that: For each of the irregular-shaped pixels including a plurality of first sub-pixels, the areas of the openings formed by the black matrix layer in the regions where the first sub-pixels are located are equal.

3. The display substrate according to claim 2, characterized in that: At least part of the boundary line of the irregular display area is an arc line, and the shape of the irregular sub-pixel is a triangle, a trapezoid or a pentagon; A boundary line between the irregular-shaped sub-pixel and the arc is tangent to the arc.

4. The display substrate according to claim 3, characterized in that: The shape of the opening formed by the black matrix layer in the area where each of the irregular-shaped sub-pixels is located is the same as the shape of the irregular-shaped sub-pixel.

5. The display substrate according to claim 2, characterized in that: The plurality of first sub-pixels are arranged along a pixel row direction, or the plurality of first sub-pixels are arranged along a pixel column direction.

6. The display substrate according to claim 5, characterized in that: The plurality of first sub-pixels are arranged along a pixel row direction; The sum of the lengths of the plurality of first sub-pixels in the pixel row direction is less than or equal to the length of the rectangular pixel in the pixel row direction; A length of any first sub-pixel among the plurality of first sub-pixels in a pixel column direction is less than or equal to a length of the rectangular pixel in the pixel column direction.

7. The display substrate according to claim 2, characterized in that: Among the multiple first sub-pixels, the length of the first sub-pixel close to the peripheral area in the pixel row direction is greater than or equal to the length of the first sub-pixel far from the peripheral area in the pixel row direction, and the length of the first sub-pixel close to the peripheral area in the pixel column direction is less than or equal to the length of the first sub-pixel far from the peripheral area in the pixel column direction.

8. The display substrate according to claim 2, characterized in that: The orthographic projection of the opening formed by the black matrix layer in each area where the first sub-pixel is located on the base substrate is located in the area where the first sub-pixel is located.

9. The display substrate according to claim 1, characterized in that: The compensation capacitor comprises: a first electrode and a second electrode; The first electrode and the pixel electrode are located in the same layer, and the second electrode and the common electrode in the irregular-shaped sub-pixel are located in the same layer; Alternatively, the first electrode and the gate electrode in the first sub-pixel are located in the same layer, and the second electrode and the source and drain electrode in the irregular-shaped sub-pixel are located in the same layer.

10. The display substrate according to claim 9, characterized in that: The first electrode and the second electrode plate are both non-hollowed flat plate electrodes.

11. The display substrate according to any one of claims 2 to 10, characterized in that: Each of the rectangular pixels comprises: a plurality of second sub-pixels, each of the second sub-pixels is a rectangular sub-pixel; The openings formed by the black matrix layer in the regions where the second sub-pixels are located have the same area.

12. The display substrate according to claim 11, characterized in that: An arrangement direction of the plurality of second sub-pixels is the same as an arrangement direction of the plurality of first sub-pixels.

13. The display substrate according to any one of claims 1 to 10, characterized in that: The display substrate further includes: a signal line; The signal line is connected to each pixel in the display substrate.

14. The display substrate according to claim 13, characterized in that: The signal lines include: a plurality of data lines and a plurality of gate lines; Each of the data lines is connected to a column of sub-pixels, and each of the gate lines is connected to a row of sub-pixels.

15. The display substrate according to claim 14, characterized in that: At least one of the plurality of data lines is in a bent shape, and at least one sub-pixel in a column of sub-pixels connected to the bent data line is a heteromorphic sub-pixel.

16. The display substrate according to claim 15, characterized in that: At least one gate line among the plurality of gate lines is in a bent shape, and at least one sub-pixel in a row of sub-pixels connected by the bent gate line is a heteromorphic sub-pixel.

17. A display device, characterized in that: The display device comprises: a driving circuit, and a display substrate according to any one of claims 1 to 16; The driving circuit is connected to the pixels in the display substrate and is used to provide driving signals for the pixels.

Images