Touch boards, display devices

Abstract

The present disclosure provides a touch substrate and a display device, the touch substrate including a touch area and a peripheral area surrounding the touch area, the touch substrate further including a touch electrode and a touch signal line coupled to each other, at least a part of the touch electrode is located in the touch area, at least a part of the touch signal line is located in the peripheral area, the touch signal line includes at least one corner part, the corner part includes a first part, a second part and a third part connected at a start point and an end point in order, the extension directions of the first part and the third part are the same, the extension direction of the second part intersects with the extension direction of the first part, and a width of the second part perpendicular to the extension direction of the second part is larger than a width of the first part perpendicular to the extension direction of the first part and / or is larger than a width of the third part perpendicular to the extension direction of the third part.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to touch substrates and display devices.

Background Art

[0002] With the rapid development of active-matrix organic light-emitting diode (AMOLED) display technology, AMOLED display products are widely applied in various fields due to their advantages such as low power consumption, wide color gamut, and large achievable sizes. In order to better improve the user experience of AMOLED display products, AMOLED display products simultaneously integrate a touch structure, so that the display products have both display functions and touch functions. [[ID=!3]]

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present disclosure is to provide a touch substrate and a display device.

Means for Solving the Problems

[0004] To achieve the above object, the present disclosure provides the following technical solutions. A first aspect of the present disclosure is a touch substrate including a touch area and a peripheral area surrounding the touch area, the touch substrate further includes a touch electrode and a touch signal line coupled to each other, at least a part of the touch electrode is located in the touch area, at least a part of the touch signal line is located in the peripheral area, the touch signal line includes at least one corner portion, the corner portion includes a first portion, a second portion, and a third portion connected in sequence at a start point and an end point, the extending directions of the first portion and the third portion are the same, and the extending direction of the second portion intersects the extending direction of the first portion, The present invention provides a touch substrate in which the width of the second portion perpendicular to the extending direction of the second portion is greater than the width of the first portion perpendicular to the extending direction of the first portion, and / or greater than the width of the third portion perpendicular to the extending direction of the third portion.

[0005] Selectively, the touch substrate includes a plurality of touch signal lines, the plurality of corner portions included in the plurality of touch signal lines are divided into at least one pair of corner portions, the plurality of second portions included in each pair of corner portions are spaced apart along a first direction, the first direction intersects with both the extending direction of the first portions and the extending direction of the second portions.

[0006] Selectively, in the same pair of corner portions, the angle a1 between the first direction and the extension direction of the first portion satisfies 30° ≤ a1 ≤ 80°.

[0007] Selectively, the extending direction of the second portion is not perpendicular to the first direction, and the angle between the first and second portions, and the angle between the third portion and the second portion, which belong to the same touch signal line, are both obtuse angles.

[0008] Selectively, the minimum distance between a plurality of the aforementioned second parts belonging to a set of corner portions is greater than the distance between a plurality of the aforementioned first parts in the set of corner portions, and / or greater than the distance between a plurality of the aforementioned third parts in the set of corner portions.

[0009] Selectively, the first portion and the third portion do not overlap in the direction of extension of the first portion, and the first portion and the third portion do not overlap in a direction perpendicular to the direction of extension of the first portion.

[0010] Selectively, the third portion is closer to the touch area than the first portion.

[0011] Selectively, the width of the second portion perpendicular to the extension direction of the second portion is 1.5 to 4 times the width of the first portion perpendicular to the extension direction of the first portion.

[0012] Selectively, the touch signal line includes a first conductive layer and a second conductive layer provided in different layers, both of which include the corner portion, and the second portion of the first conductive layer is coupled to the second portion of the second conductive layer.

[0013] Selectively, the touch substrate further includes a touch insulating layer provided between the first conductive layer and the second conductive layer, the touch insulating layer includes a first via hole, the orthogonal projection of the first via hole on the base of the touch substrate overlaps with the orthogonal projection of the second portion of the first conductive layer on the base, and overlaps with the orthogonal projection of the second portion of the second conductive layer on the base, and the second portion of the first conductive layer and the second portion of the second conductive layer are coupled by the first via hole.

[0014] Selectively, the extension direction of the orthogonal projection of the first via hole on the base is the same as the extension direction of the second portion.

[0015] Selectively, in a direction perpendicular to the extension direction of the second portion, the width of the first via hole is 0.2 to 0.5 times the width of the second portion.

[0016] Selectively, the touch electrode includes a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrode includes a plurality of first electrode patterns formed in an integral structure, the second touch electrode includes a plurality of second electrode patterns arranged sequentially, adjacent second electrode patterns are connected by connecting bridges, the first electrode patterns and the second electrode patterns are provided to be made of the same layer and material, and the second electrode patterns and the connecting bridges are provided to be made of different layers. The first conductive layer and the first electrode pattern are provided to be made of the same layer and material. The second conductive layer and the connecting bridge are provided to be made of the same layer and material.

[0017] Selectively, the plurality of second touch electrodes are arranged along a second direction, and in at least some of the touch signal lines electrically connected to the second touch electrodes, each touch signal line includes a first compensation line segment, and the plurality of first compensation line segments included in at least some of the touch signal lines are arranged along the second direction. The first compensation line segment closest to the touch region is coupled to the second touch electrode closest to the first compensation line segment.

[0018] Selectively, at least some of the touch signal lines include a first compensation line segment, the first compensation line segment includes at least two first corner portions, the first corner portions include the first portion, the second portion and the third portion, The at least two first corner portions belonging to the same touch signal line are located on the same side of the touch area, the at least two first corner portions are arranged substantially along the extending direction of the first portion, and the minimum distance of the at least two first corner portions from the touch area is different.

[0019] Selectively, at least some of the touch signal lines further include a first uncompensated line segment, the first uncompensated line segment and the first compensated line segment located on different sides of the touch area, the first uncompensated line segment being coupled to the first end of the first compensated line segment and the touch electrode, the first uncompensated line segment including at least one second corner portion, the second corner portion including the first portion, the second portion and the third portion.

[0020] Selectively, in the first corner portion included in the first compensating line segment, the third portion is closer to the first uncompensated line segment than the first portion.

[0021] Selectively, the minimum width of the first uncompensated line segment perpendicular to the extension direction of the first uncompensated line segment is greater than the width of the first portion of the first compensated line segment perpendicular to the extension direction of the first portion of the first compensated line segment.

[0022] Optionally, the touch substrate includes touch chips, and the touch signal lines further include second compensation line segments and second non-compensation line segments. At least a part of the second compensation line segment and the first part extend in the same direction. At least a part of the second compensation line segment is located on the side opposite to the touch area of the first compensation line segment. The second compensation line segments are respectively coupled to the second ends of the first compensation line segments and the first ends of the second non-compensation line segments. The second ends of the second non-compensation line segments are coupled to the touch chips.

[0023] Optionally, the width of the second compensation line segment perpendicular to the extending direction of the second compensation line segment is equal to the width of the first part perpendicular to the extending direction of the first part, and / or equal to the width of the third part perpendicular to the extending direction of the third part.

[0024] Optionally, the width of the second non-compensation line segment perpendicular to the extending direction of the second non-compensation line segment is greater than the width of the second compensation line segment perpendicular to the extending direction of the second compensation line segment.

[0025] Optionally, both the first conductive layer and the second conductive layer include the first compensation line segment, the second compensation line segment, the first non-compensation line segment, and the second non-compensation line segment. The first non-compensation line segment included in the first conductive layer is coupled to the first non-compensation line segment included in the second conductive layer. The second non-compensation line segment included in the first conductive layer is coupled to the second non-compensation line segment included in the second conductive layer.

[0026] Based on the technical solution of the touch substrate, the second aspect of the present disclosure provides a display device including the above touch substrate.

[0027] Optionally, the display device further includes a display panel. The touch substrate and the display panel are provided in a stacked manner, and the touch substrate is located on the light-emitting side of the display panel.

[0028] The drawings described herein are used to provide a further understanding of the Disclosure and to constitute part of the Disclosure, and the exemplary embodiments and descriptions thereof are used to illustrate the Disclosure and do not constitute an unreasonable limitation to the Disclosure. [Brief explanation of the drawing]

[0029] [Figure 1] This is a schematic diagram of a touch substrate structure according to an embodiment of the present disclosure. [Figure 2] This is an enlarged schematic diagram of portion A1 in Figure 1. [Figure 3] This is the first enlarged schematic diagram of section A3 in Figure 2. [Figure 4] This is a second enlarged schematic diagram of section A3 in Figure 2. [Figure 5] This is the first enlarged schematic diagram of portion A2 in Figure 1. [Figure 6] This is a second enlarged schematic diagram of section A2 in Figure 1. [Figure 7] This is a schematic cross-sectional view of a touch electrode according to an embodiment of the present disclosure. [Figure 8] This is a first schematic cross-sectional view of a display device according to an embodiment of the present disclosure. [Figure 9] This is a second schematic cross-sectional view of a display device according to an embodiment of the present disclosure. [Modes for carrying out the invention]

[0030] To further describe the touch substrate and display device according to the embodiments of this disclosure, they will be described in detail below with reference to the drawings of the specification.

[0031] In related technologies, when display products integrate a touch structure, the touch structure generally includes touch electrodes and touch signal lines. The touch signal lines are used to transmit signals to the touch electrodes or to feed back signals detected by the touch electrodes. Due to limited layout space, the layout method of the touch signal lines varies, resulting in poor uniformity of the transmitted signals.

[0032] This disclosure provides a touch substrate on which touch electrodes and touch signal lines are provided, and resistance compensation design is performed on the touch signal lines, that is, the length of at least a portion of the touch signal lines is extended and the line width of the extended portion is reduced at the same time, thereby ensuring uniformity of the resistance of each touch signal line on the touch substrate and ensuring uniformity of the transmission signal of each touch signal line on the touch substrate.

[0033] As shown in Figures 3 and 5, after compensation design is performed on the touch substrate, a corner region (for example, the location where 1101b is located) appears in the touch signal line, and there is a risk of disconnection of the touch signal line in the corner region.

[0034] Referring to Figures 1, 2, and 4, an embodiment of the present disclosure provides a touch substrate 1 including a touch area 10 and a peripheral area 11 surrounding the touch area 10, wherein the touch substrate 1 further includes a touch electrode 101 and a touch signal line 110 coupled to each other. At least a portion of the touch electrode 101 is located in the touch area 10. At least a portion of the touch signal line 110 is located in the peripheral region 11, and the touch signal line 110 includes at least one corner portion, the corner portion includes a first portion 1101a, a second portion 1101b, and a third portion 1101c connected at a start and end point in order, the extending directions of the first portion 1101a and the third portion 1101c are the same, and the extending direction of the second portion 1101b intersects with the extending direction of the first portion 1101a. The width of the second portion 1101b perpendicular to the extension direction of the second portion 1101b is greater than the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a, and / or greater than the width of the third portion 1101c perpendicular to the extension direction of the third portion 1101c.

[0035] Exemplary, the touch substrate 1 includes the touch area 10 and the peripheral area 11, the touch area 10 is provided with the touch electrode 101, the peripheral area 11 is provided with the touch signal line 110 and the touch chip, the touch signal line 110 is connected between the corresponding touch electrode 101 and the touch chip and is used to transmit signals provided by the touch chip to the corresponding touch electrode 101 and / or to transmit signals at the corresponding touch electrode 101 to the touch chip.

[0036] For example, the touch substrate 1 includes a self-capacitive touch substrate or a mutually capacitive touch substrate.

[0037] For example, when the touch substrate 1 is actually applied, the user makes a touch on the touch area 10, the touch electrode 101 of the touch area 10 feeds back the detected signal to the touch chip, and the touch chip determines the position of the touch based on the received touch signal.

[0038] For example, the touch substrate 1 includes a plurality of touch electrodes 101 and a plurality of touch signal lines 110, and at least some of the touch electrodes 101 and the touch signal lines 110 are connected in a one-to-one correspondence.

[0039] Exemplary, the touch signal line 110 includes at least one corner portion, the corner portion includes the first portion 1101a, the second portion 1101b, and the third portion 1101c, the second portion 1101b being located between the first portion 1101a and the third portion 1101c, and the second portion 1101b being joined to the first portion 1101a and the third portion 1101c, respectively. Exemplary, the first compensation line segment 1101 forms a corner region in the second portion 1101b.

[0040] For example, the third portion 1101c is closer to the touch area 10 than the first portion 1101a.

[0041] Exemplarily, the touch substrate 1 includes a rectangular touch substrate. The touch substrate 1 includes an upper frame and a lower frame provided opposite to each other, and further includes a left frame and a right frame provided opposite to each other. The touch chips included in the touch substrate 1 are provided on the lower frame. Exemplarily, the extending direction of the first portion 1101a and the third portion 1101c is the same as the extending direction of the upper frame and the lower frame. Exemplarily, the extending direction of the first portion 1101a and the third portion 1101c is the same as the extending direction of the left frame and the right frame. Exemplarily, the included angle a2 between the extending direction of the second portion 1101b and the extending direction of the first portion 1101a satisfies 0° < a2 ≤ 90°.

[0042] According to the specific structure of the touch substrate 1 above, in the touch substrate 1 according to the embodiments of the present disclosure, the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is larger than the width of the first portion 1101a perpendicular to the extending direction of the first portion 1101a, and / or the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is larger than the width of the third portion 1101c perpendicular to the extending direction of the third portion 1101c. By setting it in this way, the width of the corner portion at the corner where the second portion 1101b is located is widened, thereby reducing the risk of disconnection of the touch signal line 110 at the corner.

[0043] As shown in FIGS. 2 and 4, in some embodiments, the touch substrate 1 includes a plurality of the touch signal lines 110. The plurality of corner portions included in the plurality of the touch signal lines 110 are divided into at least one set of corner portions (for example, the A3 portion, the B1 portion, and the B2 portion in FIG. 2). The plurality of the second portions 1101b included in each set of corner portions are arranged at intervals along a first direction. The first direction intersects with both the extending direction of the first portion 1101a and the extending direction of the second portion 1101b.

[0044] Exemplarily, the first direction is perpendicular to the extending direction of the second portion 1101b.

[0045] For example, the angle between the first direction and the direction of extension of the first portion 1101a is 45° or less.

[0046] In the touch substrate 1 according to the above embodiment, the multiple second portions 1101b included in each set of corner portions are arranged at intervals along the first direction, and the first direction is set to intersect with both the extending direction of the first portion 1101a and the extending direction of the second portion 1101b. As a result, even if the width of the second portion 1101b is widened, it is possible to ensure that the width of the entire corner portion included in the touch signal line 110 does not change in the direction perpendicular to the extending direction of the first portion 1101a. Therefore, the touch substrate 1 according to the above embodiment reduces the risk of disconnection of the touch signal line 110 at the corners, and at the same time avoids increasing the frame width occupied by the entire corner portion of the touch substrate 1, which is advantageous for narrowing the frame of the touch substrate 1.

[0047] In some embodiments, in the same set of corner portions, the angle a1 between the first direction and the extension direction of the first portion is set to satisfy 30° ≤ a1 ≤ 80°.

[0048] The above setting method not only avoids increasing the frame width occupied by the entire corner portion of the touch board 1, but also maximizes the width of the second portion 1101b, further reducing the risk of disconnection of the touch signal line 110 at the corner.

[0049] In some embodiments, the extending direction of the second portion is not perpendicular to the first direction, and the angle between the first and second portions, and the angle between the third and second portions, which belong to the same touch signal line, are set to be obtuse angles.

[0050] In the same touch signal line, the angle between the first part and the second part, and the angle between the third part and the second part are both obtuse angles.

[0051] The above setting method reduces the risk of disconnection of the touch signal line 110 at the corners, and at the same time reduces the frame width occupied by the entire corner portion of the touch board 1, which is advantageous for narrowing the frame of the touch board 1.

[0052] In some embodiments, the minimum distance between a plurality of the second portions 1101b belonging to a set of corner portions is greater than the distance between a plurality of the first portions 1101a in the set of corner portions, and / or greater than the distance between a plurality of the third portions 1101c in the set of corner portions.

[0053] The above setting method not only avoids increasing the frame width occupied by the entire corner portion of the touch board 1, but also maximizes the width of the second portion 1101b, further reducing the risk of disconnection of the touch signal line 110 at the corner. Furthermore, the above setting method further reduces the risk of short circuits occurring between adjacent second portions 1101b.

[0054] In some embodiments, the first portion and the third portion are set so as not to overlap in the direction of extension of the first portion, and so as not to overlap in a direction perpendicular to the direction of extension of the first portion.

[0055] In some embodiments, the third portion is set to be closer to the touch area than the first portion.

[0056] The above setting method is advantageous not only in reducing the difficulty of laying out the touch signal lines and ensuring connection performance between the touch signal lines and the touch electrodes, but also in reducing the risk of disconnection of the touch signal lines 110 at the corners, and at the same time in reducing the frame width occupied by the entire corner portion of the touch substrate 1, thus being advantageous for narrowing the frame of the touch substrate 1.

[0057] In some embodiments, the width of the second portion perpendicular to the extending direction of the second portion is 1.5 to 4 times the width of the first portion perpendicular to the extending direction of the first portion.

[0058] The above setting method is advantageous because it reduces the risk of disconnection of the touch signal line 110 at the corners, and at the same time reduces the frame width occupied by the entire corner portion of the touch board 1, thus enabling a narrower frame for the touch board 1.

[0059] In some embodiments, the touch signal line 110 includes a first conductive layer and a second conductive layer provided in different layers, both of which include the corner portion, and the second portion 1101b of the first conductive layer is coupled to the second portion 1101b of the second conductive layer.

[0060] Exemplary, the orthogonal projection of the first conductive layer on the base of the touch substrate 1 overlaps at least partially with the orthogonal projection of the second conductive layer on the base. Exemplary, other portions between the first conductive layer and the second conductive layer, other than the second portion 1101b, are bonded.

[0061] For example, an insulating layer is provided between the first conductive layer and the second conductive layer, and the insulating layer is manufactured using an inorganic material such as silicon nitride.

[0062] For example, the orthogonal projection of a corner portion included in the first conductive layer on the base overlaps with the orthogonal projection of a corner portion included in the second conductive layer on the base.

[0063] For example, both the first conductive layer and the second conductive layer are manufactured using a metallic material.

[0064] Since the second portion 1101b has a relatively wide width in a direction perpendicular to its own extension direction, by setting the second portion 1101b in the first conductive layer to bond to the second portion 1101b in the second conductive layer, the first conductive layer can be made to communicate better with the second lead wire layer, thereby achieving better uniformity of the touch signal and reliability of the signal line 110.

[0065] Furthermore, in order to ensure the uniformity of the transmission signals of the touch signal lines 110, the load on each touch signal line 110 on the touch substrate 1 must be uniform. Therefore, in the design process of the touch signal lines 110, a related resistance compensation unit is designed, thereby better realizing the effect of uniform resistance on each touch signal line 110. In addition, given the limited layout space and the effectiveness of compensation, the design of the compensation routing uses the minimum line width achievable in the process to perform the relevant compensation, and a two-layer metal routing parallel design is adopted to reduce the risk of signal channel breakage in order to ensure the connectivity of the signal channels.

[0066] As shown in Figure 4, in some embodiments, the touch substrate further includes a touch insulating layer provided between the first conductive layer and the second conductive layer, the touch insulating layer includes a first via hole 12, the orthogonal projection of the first via hole 12 on the base of the touch substrate 1 overlaps with the orthogonal projection of the second portion 1101b in the first conductive layer on the base, and the orthogonal projection of the second portion 1101b in the second conductive layer on the base, and the second portion 1101b in the first conductive layer and the second portion 1101b in the second conductive layer are coupled by the first via hole 12.

[0067] As shown in Figure 4, in some embodiments, the extension direction of the orthogonal projection of the first via hole 12 on the base is the same as the extension direction of the second portion 1101b.

[0068] Exemplary, the orthogonal projection of the second portion 1101b of the first conductive layer onto the base of the touch substrate 1 has an overlapping region with the orthogonal projection of the second portion 1101b of the second conductive layer onto the base, the second portion 1101b of the first conductive layer and the second portion 1101b of the second conductive layer are connected by a first via hole 12, and the orthogonal projection of the first via hole 12 onto the base lies in the overlapping region.

[0069] Exemplary, the orthogonal projection of the first via hole 12 on the base is rectangular. Exemplary, the size of the via hole is 5 μm × 5 μm.

[0070] For example, the extension direction of the orthogonal projection of the first via hole 12 on the base is the same as the extension direction of the second portion 1101b, and the orthogonal projection of the first via hole 12 on the base has a minimum width perpendicular to its own extension direction of 3 μm to 6 μm, and may include its endpoint values.

[0071] Exemplary, the width of the second portion 1101b perpendicular to the extension direction of the second portion 1101b is between 8 μm and 11 μm, and may include its endpoints. Exemplary, the minimum distance between the boundary of the second portion 1101b and the boundary of the first via hole 12 is 2.5 μm or more.

[0072] In the touch substrate 1 according to the above embodiment, by setting the extension direction of the orthogonal projection of the first via hole 12 on the base to be the same as the extension direction of the second portion 1101b, a relatively large size can be achieved for the first via hole 12, thereby ensuring better connection performance between the second portion 1101b in the first conductive layer and the second portion 1101b in the second conductive layer.

[0073] In some embodiments, the width of the first via hole is set to be 0.2 to 0.5 times the width of the second portion in a direction perpendicular to the extension direction of the second portion.

[0074] The above setting method makes it possible to achieve a relatively large size for the first via hole 12 and ensure better connection performance between the second portion 1101b of the first conductive layer and the second portion 1101b of the second conductive layer.

[0075] As shown in Figures 1 and 7, in some embodiments, the touch electrode 101 includes a plurality of first touch electrodes 1011 and a plurality of second touch electrodes 1012, the first touch electrode 1011 includes a plurality of first electrode patterns formed in an integral structure, the second touch electrode 1012 includes a plurality of second electrode patterns arranged sequentially, adjacent second electrode patterns are connected by a connecting bridge 1013, the first electrode patterns and the second electrode patterns are provided to be of the same layer and material, the second electrode patterns and the connecting bridge 1013 are provided to be of different layers, the first conductive layer and the first electrode patterns are provided to be of the same layer and material, and the second conductive layer and the connecting bridge 1013 are provided to be of the same layer and material.

[0076] Exemplary, the first touch electrode 1011 includes a plurality of first electrode patterns, the plurality of first electrode patterns being sequentially coupled to form an integral structure, and the second touch electrode 1012 includes a plurality of sequentially coupled second electrode patterns, the arrangement direction of the plurality of second electrode patterns intersects with the arrangement direction of the plurality of first electrode patterns.

[0077] Exemplary, the first electrode pattern and the second electrode pattern are provided to be of the same layer and material, can be formed in the same patterning process, have a gap between adjacent first electrode patterns and second electrode patterns, and can insulate each other to form a capacitive structure.

[0078] Exemplary, the orthogonal projection of the second electrode pattern on the base has an overlapping region with the orthogonal projection of the connecting bridge 1013 on the base, the second electrode pattern and the connecting bridge 1013 are connected by via holes, and the orthogonal projection of the via holes on the base lies in the overlapping region.

[0079] For example, the first touch electrode 1011 includes one of a drive electrode and a detection electrode, and the second touch electrode 1012 includes the other of the drive electrode and the detection electrode.

[0080] By providing the first conductive layer and the first electrode pattern as being made of the same layer and material, the first conductive layer and the first electrode pattern can be formed simultaneously in the same patterning process, thereby significantly simplifying the manufacturing flow of the touch substrate 1 and reducing the manufacturing cost of the touch substrate 1.

[0081] By providing the second conductive layer and the connecting bridge 1013 as being made of the same layer and material, the second conductive layer and the connecting bridge 1013 can be formed simultaneously in the same patterning process, thereby significantly simplifying the manufacturing flow of the touch substrate 1 and reducing the manufacturing cost of the touch substrate 1.

[0082] As shown in Figures 1 and 2, in some embodiments, the plurality of second touch electrodes 1012 are arranged along a second direction, and in at least some of the touch signal lines electrically connected to the second touch electrodes, each touch signal line includes a first compensation line segment 1101, and the plurality of first compensation line segments 1101 included in at least some of the touch signal lines are arranged along the second direction. The first compensation line segment 1101 closest to the touch area is set to be coupled to the second touch electrode 1012 closest to the first compensation line segment 1101.

[0083] Exemplary, at least some of the touch signal lines include detection signal lines. Exemplary, the first compensation line segment 1101 closest to the touch region is coupled to the second touch electrode 1012 closest to the first compensation line segment 1101, the next closest first compensation line segment 1101 to the touch region is coupled to the next closest second touch electrode 1012, and by analogy, the first compensation line segment 1101 furthest from the touch region is coupled to the second touch electrode 1012 furthest from the first compensation line segment 1101.

[0084] The above setting method ensures that the touch signal line and the touch electrode are coupled to each other, while effectively reducing the difficulty of laying out the touch signal line.

[0085] As shown in Figure 2, in some embodiments, at least a portion of the touch signal line includes a first compensation line segment 1101, the first compensation line segment 1101 includes at least two first corner portions, the first corner portions include a first portion 1101a, a second portion 1101b, and a third portion 1101c, the at least two first corner portions belonging to the same touch signal line are located on the same side of the touch area 10, the at least two first corner portions are arranged substantially along the extending direction of the first portion 1101a, and the minimum distances of the at least two first corner portions from the touch area are different.

[0086] For example, one of the at least two first corner portions (e.g., B2) is closer to the touch area 10 than the other first corner portion (e.g., A3). For example, both of the two first corner portions are located on the lower frame of the touch substrate 1. For example, one of the two first corner portions is located near the middle of the lower frame, and the other of the two first corner portions is located near the corner of the touch substrate 1 on the lower frame.

[0087] Exemplary, the touch signal line 110 further includes an entry portion coupled to the touch chip (e.g., a second uncompensated line segment 1104, described later), the other of the two first corner portions located between the touch area 10 and the entry portion.

[0088] Referring to Figures 1, 2, and 6, as shown in Figure 2, the second uncompensated line segments 1104 included in RX1 to RX16 are arranged in order from right to left. In each RX line, the second uncompensated line segment 1104 extends from the touch chip toward the touch area until it is coupled to the second compensated line segment 1102. The second compensated line segment 1102 continues to the left from the position where it is coupled to the second uncompensated line segment 1104 until it is coupled to one end of the first compensated line segment 1101. The first compensated line segment 1101 continues to the right from the position where it is coupled to the second compensated line segment 1102 until it is coupled to the first uncompensated line segment 1103.

[0089] In the lower frame of the touch board, RX1 to RX16 all employ a layout method in which they first curve to the left and then to the right, and the first compensation line segment 1101 and the second compensation line segment 1102 of each RX line are both located in the peripheral region of the first compensation line segment 1101 and the second compensation line segment 1102 of the adjacent preceding RX line.

[0090] To better achieve the layout of the first compensating line segment 1101 and the coupling between the first compensating line segment 1101 and its corresponding first non-compensating line segment 1103, the first compensating line segment 1101 is configured to include two first corner portions.

[0091] In the touch substrate 1 according to the above embodiment, setting the first compensation line segment 1101 to include two first corner portions is not only advantageous in reducing the difficulty of laying out the touch signal line 110, but also advantageous in narrowing the frame of the touch substrate 1.

[0092] As shown in Figures 1 and 6, in some embodiments, at least a portion of the touch signal line 110 further includes a first uncompensated line segment 1103, the first uncompensated line segment 1103 and the first compensated line segment 1101 located on different sides of the touch area 10, the first uncompensated line segment 1103 being coupled to the first end of the first compensated line segment 1101 and the touch electrode 101, the first uncompensated line segment 1103 including at least one second corner portion, the second corner portion including the first portion 1101a, the second portion 1101b and the third portion 1101c.

[0093] For example, the first compensation line segment 1101 is located in the lower frame of the touch substrate 1, that is, below the touch area 10, and the first non-compensation line segment 1103 is located in the left or right frame of the touch substrate 1, that is, to the left or to the right of the touch area 10.

[0094] Exemplary, at least a portion of the first uncompensated line segment 1103 extends along the left frame or the right frame.

[0095] For example, one end of the first uncompensated line segment 1103 is connected to the first end of the first compensated line segment 1101, and the other end of the first uncompensated line segment 1103 is connected to the touch electrode 101.

[0096] Exemplary, the first uncompensated line segment 1103 includes at least one second corner portion, the second corner portion includes a first portion 1101a, a second portion 1101b, and a third portion 1101c connected at a start and an end point, the extension directions of the first portion 1101a and the third portion 1101c are the same, the extension direction of the second portion 1101b intersects the extension direction of the first portion 1101a, the width of the second portion 1101b perpendicular to the extension direction of the second portion 1101b is greater than the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a, and / or greater than the width of the third portion 1101c perpendicular to the extension direction of the third portion 1101c.

[0097] In the touch substrate 1 according to the above embodiment, the first uncompensated line segment 1103 is set to include at least one second corner portion, thereby widening the width of the first uncompensated line segment 1103 at the corner where the second portion 1101b is located, and thereby reducing the risk of disconnection of the first uncompensated line segment 1103 at the corner.

[0098] In some embodiments, in the first corner portion included in the first compensating line segment 1101, the third portion 1101c is set to be closer to the first uncompensated line segment 1103 than the first portion 1101a.

[0099] The above setting method is advantageous not only in reducing the difficulty of laying out the touch signal lines and ensuring connection performance between the touch signal lines and the touch electrodes, but also in reducing the risk of disconnection of the touch signal lines 110 at the corners, and at the same time in reducing the frame width occupied by the entire corner portion of the touch substrate 1, thus being advantageous for narrowing the frame of the touch substrate 1.

[0100] In some embodiments, the minimum width of the first uncompensated line segment 1103 perpendicular to the extension direction of the first uncompensated line segment 1103 is set to be greater than the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a in the first compensated line segment 1101.

[0101] Exemplary, the minimum width of the first uncompensated line segment 1103 perpendicular to the extension direction of the first uncompensated line segment 1103 includes the minimum width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a included in the corner portion of the first uncompensated line segment 1103, the minimum width of the second portion 1101b perpendicular to the extension direction of the second portion 1101b included in the corner portion of the first uncompensated line segment 1103, and the minimum width of the third portion 1101c perpendicular to the extension direction of the third portion 1101c included in the corner portion of the first uncompensated line segment 1103.

[0102] With the above setting method, the first uncompensated line segment 1103 has a relatively wide line width, and in this way, when the first compensated line segment 1101 is coupled to the touch electrode 101 by the first uncompensated line segment 1103, the connection performance between the first compensated line segment 1101 and the touch electrode 101 can be ensured.

[0103] In some embodiments, the touch substrate 1 includes a touch chip, and the touch signal line 110 further includes a second compensating line segment 1102 and a second uncompensating line segment 1104, wherein at least a portion of the second compensating line segment 1102 and the first portion 1101a extend in the same direction, at least a portion of the second compensating line segment 1102 is located on the opposite side of the first compensating line segment 1101 from the touch area 10, and the second compensating line segment 1102 is coupled to the second end of the first compensating line segment 1101 and the first end of the second uncompensating line segment 1104, respectively, and the second end of the second uncompensating line segment 1104 is coupled to the touch chip.

[0104] Exemplary, the touch signal line 110 further includes a second compensation line segment 1102, at least a portion of which extends along the lower frame of the touch substrate 1. At least a portion of the first compensation line segment 1101 is located between the second compensation line segment 1102 and the touch area 10. For example, the first end of the second compensating line segment 1102 is connected to the first end of the second uncompensated line segment 1104, and the second end of the second compensating line segment 1102 is connected to the second end of the first compensating line segment 1101. Exemplary, the touch signal line 110 further includes a second uncompensated line segment 1104, the second end of which is coupled to a corresponding pin in the touch chip. Exemplary, the extending direction of the second uncompensated line segment 1104 intersects the extending direction of the first portion 1101a of the first compensated line segment 1101. Exemplary, the extending direction of the second uncompensated line segment 1104 is perpendicular to the extending direction of the first portion 1101a of the first compensated line segment 1101.

[0105] In the touch substrate 1 according to the above embodiment, the touch signal line 110 is further configured to include the second compensation line segment 1102 and the second uncompensated line segment 1104, thereby not only compensating for the uniformity of the touch signal line 110 in the lower frame, but also ensuring good connection performance between the touch signal line 110 and the touch chip.

[0106] In some embodiments, the width of the second compensation line segment 1102 perpendicular to the extension direction of the second compensation line segment 1102 is set to be equal to the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a, and / or equal to the width of the third portion 1101c perpendicular to the extension direction of the third portion 1101c.

[0107] Exemplary, the width of the second compensation line segment 1102 perpendicular to the extension direction of the second compensation line segment 1102 is equal to the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a in the first compensation line, and / or equal to the width of the third portion 1101c perpendicular to the extension direction of the third portion 1101c in the first compensation line.

[0108] Because the width of the first portion 1101a perpendicular to the extension direction of the first portion 1101a in the first compensation line is relatively small, the setting method also results in the second compensation line segment 1102 having a relatively small width. In this way, compensation for the uniformity of the touch signal line 110 is achieved while simultaneously avoiding the touch signal line 110 occupying an excessively wide frame width, which is advantageous for achieving a narrower frame for the touch substrate 1.

[0109] In some embodiments, the width of the second uncompensated line segment 1104 perpendicular to the extension direction of the second uncompensated line segment 1104 is set to be greater than the width of the second compensated line segment 1102 perpendicular to the extension direction of the second compensated line segment 1102.

[0110] The above setting method ensures the reliability of the second uncompensated line segment 1104 and ensures good connection performance between the first compensated line segment 1101 and the touch chip.

[0111] In some embodiments, the first conductive layer and the second conductive layer each include the first compensating line segment, the second compensating line segment 1102, the first uncompensated line segment 1103, and the second uncompensated line segment 1104. The first uncompensated line segment 1103 contained in the first conductive layer is bonded to the first uncompensated line segment 1103 contained in the second conductive layer. The second uncompensated line segment 1104 contained in the first conductive layer is bonded to the second uncompensated line segment 1104 contained in the second conductive layer.

[0112] Exemplary, the first compensating line segment 1101, the second compensating line segment 1102, the first uncompensated line segment 1103, and the second uncompensated line segment 1104 included in the first conductive layer are formed as a single unit. Exemplary, the first compensating line segment 1101, the second compensating line segment 1102, the first uncompensated line segment 1103, and the second uncompensated line segment 1104 included in the second conductive layer are formed as a single unit.

[0113] Exemplary, the orthogonal projection of the first uncompensated line segment 1103 contained in the first conductive layer on the base has an overlapping region with the orthogonal projection of the first uncompensated line segment 1103 contained in the second conductive layer on the base, the first uncompensated line segment 1103 contained in the first conductive layer and the first uncompensated line segment 1103 contained in the second conductive layer are coupled by a via hole, and the orthogonal projection of the via hole on the base lies in the overlapping region.

[0114] Exemplary, one end of the first uncompensated line segment 1103 contained in the first conductive layer that is close to the touch electrode 101 is coupled to the other end of the first uncompensated line segment 1103 contained in the second conductive layer that is close to the touch electrode 101.

[0115] Exemplary, the orthogonal projection of the second uncompensated line segment 1104 contained in the first conductive layer onto the base has an overlapping region with the orthogonal projection of the second uncompensated line segment 1104 contained in the second conductive layer onto the base, and the second uncompensated line segment 1104 contained in the first conductive layer and the second uncompensated line segment 1104 contained in the second conductive layer are coupled by a via hole, and the orthogonal projection of the via hole onto the base lies in the overlapping region.

[0116] Exemplary, one end of the second uncompensated line segment 1104 included in the first conductive layer that is close to the touch chip is coupled to the other end of the second uncompensated line segment 1104 included in the second conductive layer that is close to the touch chip.

[0117] In the touch substrate 1 according to the above embodiment, both the first conductive layer and the second conductive layer include the first compensation line segment 1101, the second compensation line segment 1102, the first uncompensated line segment 1103, and the second uncompensated line segment 1104, and the first conductive layer and the second conductive layer are configured to be coupled at the first uncompensated line segment 1103 and the second uncompensated line segment 1104, respectively. This not only ensures better reliability and connection performance of the touch signal line 110, but is also advantageous for adjusting the uniformity of the touch signal line 110.

[0118] In some embodiments, the orthogonal projection of the first conductive layer on the base of the touch substrate 1 is set to overlap with the orthogonal projection of the second conductive layer on the base. The above setting method minimizes the layout space occupied by the touch signal line 110, which is advantageous in realizing a narrower frame for the touch substrate 1.

[0119] As shown in Figures 1 and 6, in some embodiments, the touch substrate 1 further includes a first shielding wire 13, at least a portion of which is located between the touch area 10 and the touch signal line 110. Exemplary, the first shield wire 13 has a stable potential. Exemplary, a GND signal is loaded onto the first shield wire 13.

[0120] The touch substrate 1 is further configured to include the first shielding wire 13, which allows the first shielding wire 13 to effectively shield against interference between the touch signal line 110 and the touch electrode, thereby ensuring the stability of the touch signal transmitted by the touch signal line 110.

[0121] As shown in Figure 1, in some embodiments, the touch signal line 110 includes a drive signal line TX and / or a detection signal line RX.

[0122] Exemplary, the touch electrode 101 includes a plurality of first touch electrodes 1011 and a plurality of second touch electrodes 1012, wherein the first touch electrode 1011 includes a plurality of first electrode patterns formed in an integral structure, and the second touch electrode 1012 includes a plurality of second electrode patterns arranged sequentially, with adjacent second electrode patterns being connected by a connecting bridge 1013.

[0123] Exemplary, the first touch electrode 1011 includes a drive electrode, and the second touch electrode 1012 includes a detection electrode. For example, the detection signal line is coupled to the corresponding second touch electrode 1012, and the drive signal line is coupled to the corresponding first touch electrode 1011.

[0124] For example, each first touch electrode 1011 corresponds to two drive signal lines, one of which is coupled to the first end of the corresponding first touch electrode 1011 and the touch chip, and the other drive signal line is coupled to the second end of the corresponding first touch electrode 1011 and the touch chip.

[0125] As an example, Figure 2 shows a corner portion B1 included in the drive signal line TX.

[0126] As shown in Figures 1, 2, and 4, in some embodiments, at least a portion of the drive signal line TX is located between the detection signal line RX and the touch area 10. The touch substrate 1 further includes a second shield wire 14, and at least a portion of the second shield wire 14 is located between the drive signal line and the detection signal line.

[0127] For example, the second shield wire 14 has a stable potential. For example, a GND signal is loaded onto the second shield wire 14. The touch substrate 1 further includes the second shield wire 14, and at least a portion of the second shield wire 14 is positioned between the drive signal line and the detection signal line, thereby enabling the second shield wire 14 to effectively shield against interference between the drive signal line and the detection signal line, thereby ensuring the stability of the transmission signals of the drive signal line and the detection signal line.

[0128] As shown in Figure 2, in some embodiments, the touch substrate 1 further includes a third shielding wire 15, the third shielding wire 15 located on one side away from the touch area of ​​the touch signal line, and at least a portion of the third shielding wire 15 extends along the boundary of the touch substrate 1 to shield the touch signal line from interference from the external environment.

[0129] The embodiments of this disclosure further provide a display device including a touch substrate 1 according to the above embodiments. In the touch substrate 1 according to the above embodiment, the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is set to be greater than the width of the first portion 1101a perpendicular to the extending direction of the first portion 1101a, and / or the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is set to be greater than the width of the third portion 1101c perpendicular to the extending direction of the third portion 1101c. By doing so, the width of the corner portion at the corner where the second portion 1101b is located is widened, thereby reducing the risk of disconnection of the touch signal line 110 at the corner.

[0130] The display device according to the embodiment of this disclosure also has the above beneficial effects when it includes the touch substrate 1. A detailed explanation is omitted here.

[0131] The display device may be any product or component with a display touch function, such as a television, display, digital photo frame, mobile phone, or tablet computer.

[0132] As shown in Figures 8 and 9, in some embodiments, the display device further includes a display panel 2, the touch substrate 1 and the display panel 2 are stacked, and the touch substrate 1 is located on the light-emitting side of the display panel 2.

[0133] Exemplary, the display panel 2 includes an AMOLED display panel 2. Exemplary, the display panel 2 includes a liquid crystal display panel 2.

[0134] For example, the touch substrate 1 is provided on the side of the display panel 2 opposite to the display panel base of the sealing layer. For example, the entire display panel 2 also serves as the base for the touch substrate 1.

[0135] Exemplary, the display device includes a full-screen touch display product.

[0136] For example, the orthogonal projection of the touch electrodes 101 of the touch substrate 1 onto the base 20 of the display panel 2 overlaps at least partially with the orthogonal projection of the pixel definition layer of the display panel 2 onto the base. The display device according to the above embodiment employs a flexible multi-layer on-cell touch structure (abbreviated as FMLOC). As shown in Figures 8 and 9, the display panel 2 includes a base 20, a driving layer 21, a first flat layer PLN1, a connection section 22, a second flat layer PLN2, an anode layer 24, a pixel definition layer PDL, an emissive layer EL, a cathode layer 25, a first inorganic encapsulation layer 26, a second inorganic encapsulation layer 27, and an organic encapsulation layer 28. The touch substrate 1 includes an inorganic insulating layer 30 (i.e., a buffer layer), a touch insulating layer 31, a first touch electrode 1011, a second touch electrode 1012, a connection bridge 1013, and a flat layer OC.

[0137] In some embodiments, the display device further includes a display panel 2, and the touch substrate 1 is integrated inside the display panel 2.

[0138] For example, the base 20 of the display panel 2 is also used as the base of the touch substrate 1, and both the touch electrodes 101 and touch signal lines 110 included in the touch substrate 1 are integrated inside the display panel 2.

[0139] The embodiments of this disclosure further provide a method for manufacturing a touch substrate 1 according to the above embodiments, wherein the touch substrate 1 includes a touch area 10 and a peripheral area 11 surrounding the touch area 10, and the manufacturing method is A process for manufacturing a touch electrode 101, comprising the step of ensuring that at least a portion of the touch electrode 101 is located in the touch area 10, A process for manufacturing a touch signal line 110, wherein the touch signal line 110 is coupled to the touch electrode 101, at least a portion of the touch signal line 110 is located in the peripheral region 11, the touch signal line 110 includes a first compensation line segment 1101, the first compensation line segment 1101 includes at least one corner portion, the corner portion includes a first portion 1101a, a second portion 1101b, and a third portion 1101c connected at a start and end point in order, the extending directions of the first portion 1101a and the third portion 1101c are the same, and the extending direction of the second portion 1101b intersects with the extending direction of the first portion 1101a. The process includes the step of the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b being greater than the width of the first portion 1101a perpendicular to the extending direction of the first portion 1101a, and / or greater than the width of the third portion 1101c perpendicular to the extending direction of the third portion 1101c.

[0140] Exemplary, the touch substrate 1 includes the touch area 10 and the peripheral area 11, the touch area 10 is provided with the touch electrode 101, the peripheral area 11 is provided with the touch signal line 110 and the touch chip, the touch signal line 110 is connected between the corresponding touch electrode 101 and the touch chip and is used to transmit signals provided by the touch chip to the corresponding touch electrode 101 and / or to transmit signals at the corresponding touch electrode 101 to the touch chip.

[0141] Exemplary examples include the touch substrate 1, which includes a self-capacitive touch substrate 1 or a mutually capacitive touch substrate 1.

[0142] For example, when the touch substrate 1 is actually applied, the user makes a touch on the touch area 10, the touch electrode 101 of the touch area 10 feeds back the detected signal to the touch chip, and the touch chip determines the position of the touch based on the received touch signal.

[0143] For example, the touch substrate 1 includes a plurality of touch electrodes 101 and a plurality of touch signal lines 110, and at least some of the touch electrodes 101 and the touch signal lines 110 are connected in a one-to-one correspondence.

[0144] Exemplarily, the touch signal line 110 includes a first compensation line segment 1101. The first compensation line segment 1101 includes at least one corner portion. The corner portion includes the first portion 1101a, the second portion 1101b, and the third portion 1101c. The second portion 1101b is located between the first portion 1101a and the third portion 1101c, and the second portion 1101b is respectively coupled to the first portion 1101a and the third portion 1101c. Exemplarily, the first compensation line segment 1101 forms a corner region at the second portion 1101b.

[0145] Exemplarily, the third portion 1101c is closer to the touch region 10 than the first portion 1101a.

[0146] Exemplarily, the touch substrate 1 includes a rectangular touch substrate 1. The touch substrate 1 includes an upper frame and a lower frame provided oppositely, and further includes a left frame and a right frame provided oppositely. The touch chips included in the touch substrate 1 are provided on the lower frame. Exemplarily, the extending directions of the first portion 1101a and the third portion 1101c are the same as the extending direction of the upper frame and the lower frame. Exemplarily, the extending directions of the first portion 1101a and the third portion 1101c are the same as the extending direction of the left frame and the right frame. Exemplarily, the included angle a between the extending direction of the second portion 1101b and the extending direction of the first portion 1101a satisfies 0° < a ≤ 90°.

[0147] In the touch substrate 1 manufactured by using the manufacturing method according to the embodiment of the present disclosure, the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is set to be larger than the width of the first portion 1101a perpendicular to the extending direction of the first portion 1101a, and / or the width of the second portion 1101b perpendicular to the extending direction of the second portion 1101b is set to be larger than the width of the third portion 1101c perpendicular to the extending direction of the third portion 1101c, so as to widen the width of the corner portion at the corner where the second portion is located, thereby reducing the risk of disconnection of the touch signal line 110 at the corner.

[0148] In this specification, each embodiment is described using a progressive approach, and identical or similar parts between embodiments may be referenced to one another. For each embodiment, the differences from the other embodiments will be emphasized. In particular, since the method embodiment is basically similar to the product embodiment, the method embodiment will be described relatively briefly, and relevant parts should be referred to the description of the product embodiment.

[0149] Unless otherwise defined, technical or scientific terms used in this disclosure should have the general meaning understood by a person skilled in the art in which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are used solely to distinguish different components. Similar terms such as “includes” or “has” mean that the element or article appearing before the term covers the elements or articles and their equivalents listed after the term, but do not exclude other elements or components. Similar terms such as “connected,” “joined,” or “linked” are not limited to physical or mechanical connections, but may also include electrical connections, which may be direct or indirect. “Up,” “down,” “left,” “right,” etc., merely indicate relative positions, and such relative positions may change as the absolute position of the object being described changes.

[0150] Furthermore, when it is stated that an element such as a layer, film, region, or substrate is located "above" or "below" another element, the element may be located "directly" "above" or "below" the other element, or an intermediate element may exist.

[0151] In the description of the embodiments above, specific features, structures, materials, or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0152] The foregoing is merely a means of carrying out the invention of this disclosure, and the scope of protection of this disclosure is not limited thereto. Any modification or substitution that can be readily conceived by a person skilled in the art within the scope of the art disclosed should be included within the scope of protection of this disclosure. Accordingly, the scope of protection of this disclosure should be based on the claims.

Claims

1. A touch substrate including a touch area and a peripheral area surrounding the touch area. The touch substrate further includes touch electrodes and touch signal lines that are coupled to each other. At least a portion of the touch electrode is located in the touch area, At least a portion of the touch signal line is located in the peripheral region, and the touch signal line includes at least one corner portion, the corner portion includes a first portion, a second portion and a third portion connected at a start and end point in order, the extension directions of the first portion and the third portion are the same, and the extension direction of the second portion intersects with the extension direction of the first portion. The width of the second portion perpendicular to the extending direction of the second portion is greater than the width of the first portion perpendicular to the extending direction of the first portion, and / or greater than the width of the third portion perpendicular to the extending direction of the third portion. The touch signal line includes a first conductive layer and a second conductive layer provided in different layers, the second portion is installed on either the first conductive layer or the second conductive layer, the second portion installed on the first conductive layer is coupled to the second portion installed on the second conductive layer, and the extending direction of the second portion installed on the first conductive layer and the extending direction of the second portion installed on the second conductive layer are the same. Touch circuit board.

2. The touch substrate includes a plurality of touch signal lines, the plurality of corner portions included in the plurality of touch signal lines are divided into at least one set of corner portions, the plurality of second portions included in each set of corner portions are arranged at intervals along a first direction, and the first direction intersects with both the extending direction of the first portion and the extending direction of the second portion. The touch substrate according to claim 1.

3. In the same pair of corner portions, the angle a1 between the first direction and the extension direction of the first portion satisfies 30° ≤ a1 ≤ 80°. The touch substrate according to claim 2.

4. The extension direction of the second portion is not perpendicular to the first direction, and the angle between the first and second portions, and the angle between the third and second portions, which belong to the same touch signal line, are both obtuse angles. The touch substrate according to claim 2.

5. The minimum distance between a plurality of the aforementioned second parts belonging to a set of corner portions is greater than the distance between a plurality of the aforementioned first parts in the set of corner portions, and / or greater than the distance between a plurality of the aforementioned third parts in the set of corner portions. The touch substrate according to claim 2.

6. The first portion and the third portion do not overlap in the direction of extension of the first portion, and the first portion and the third portion do not overlap in a direction perpendicular to the direction of extension of the first portion. The touch substrate according to claim 1.

7. The third portion is closer to the touch area than the first portion. The touch substrate according to claim 1.

8. The width of the second portion perpendicular to the extension direction of the second portion is 1.5 to 4 times the width of the first portion perpendicular to the extension direction of the first portion. The touch substrate according to claim 1.

9. The touch substrate further includes a touch insulating layer provided between the first conductive layer and the second conductive layer, the touch insulating layer includes a first via hole, the orthogonal projection of the first via hole on the base of the touch substrate overlaps with the orthogonal projection of the second portion of the first conductive layer on the base, and overlaps with the orthogonal projection of the second portion of the second conductive layer on the base, and the second portion of the first conductive layer and the second portion of the second conductive layer are coupled by the first via hole. The touch substrate according to claim 1.

10. The extension direction of the orthogonal projection of the first via hole on the base is the same as the extension direction of the second portion. The touch substrate according to claim 9.

11. In a direction perpendicular to the extension direction of the second portion, the width of the first via hole is 0.2 to 0.5 times the width of the second portion. The touch substrate according to claim 9.

12. The touch electrode includes a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrode includes a plurality of first electrode patterns formed in an integral structure, the second touch electrode includes a plurality of second electrode patterns arranged sequentially, adjacent second electrode patterns are connected by connecting bridges, the first electrode patterns and the second electrode patterns are provided to be made of the same layer and material, and the second electrode patterns and the connecting bridges are provided to be made of different layers. The first conductive layer and the first electrode pattern are provided to be made of the same layer and material. The second conductive layer and the connecting bridge are provided to be made of the same layer and material. The touch substrate according to claim 1.

13. The plurality of second touch electrodes are arranged along a second direction, and in at least some of the touch signal lines electrically connected to the second touch electrodes, each touch signal line includes a first compensation line segment, and the plurality of first compensation line segments included in at least some of the touch signal lines are arranged along the second direction. The first compensation line segment closest to the touch region is coupled to the second touch electrode closest to the first compensation line segment. The touch substrate according to claim 12.

14. At least a portion of the touch signal line includes a first compensation line segment, the first compensation line segment includes at least two first corner portions, the first corner portions include the first portion, the second portion and the third portion, The at least two first corner portions belonging to the same touch signal line are located on the same side of the touch area, the at least two first corner portions are arranged substantially along the extending direction of the first portion, and the minimum distance of the at least two first corner portions from the touch area is different. The touch substrate according to claim 1.

15. At least a portion of the touch signal line further includes a first uncompensated line segment, the first uncompensated line segment and the first compensated line segment located on different sides of the touch area, the first uncompensated line segment being coupled to the first end of the first compensated line segment and the touch electrode, the first uncompensated line segment including at least one second corner portion, the second corner portion including the first portion, the second portion and the third portion The touch substrate according to claim 14.

16. In the first corner portion included in the first compensating line segment, the third portion is closer to the first uncompensated line segment than the first portion. The touch substrate according to claim 15.

17. The minimum width of the first uncompensated line segment perpendicular to the extension direction of the first uncompensated line segment is greater than the width of the first portion of the first compensated line segment perpendicular to the extension direction of the first portion of the first compensated line segment. The touch substrate according to claim 15.

18. The touch substrate includes a touch chip, and the touch signal line further includes a second compensating line segment and a second uncompensated line segment. The extension direction of at least a portion of the second compensation line segment and the first portion are the same, at least a portion of the second compensation line segment is located on the opposite side of the first compensation line segment from the touch area, the second compensation line segment is coupled to the second end of the first compensation line segment and the first end of the second non-compensated line segment, the second end of the second non-compensated line segment is coupled to the touch chip. The touch substrate according to claim 15.

19. The width of the second compensation line segment perpendicular to the extension direction of the second compensation line segment is equal to the width of the first portion perpendicular to the extension direction of the first portion, and / or equal to the width of the third portion perpendicular to the extension direction of the third portion. The touch substrate according to claim 18.

20. The width of the second uncompensated line segment perpendicular to the extension direction of the second uncompensated line segment is greater than the width of the second compensated line segment perpendicular to the extension direction of the second compensated line segment. The touch substrate according to claim 19.

21. The first conductive layer and the second conductive layer each include the first compensating line segment, the second compensating line segment, the first non-compensating line segment, and the second non-compensating line segment. The first uncompensated line segment contained in the first conductive layer is coupled to the first uncompensated line segment contained in the second conductive layer. The second uncompensated line segment contained in the first conductive layer is coupled to the second uncompensated line segment contained in the second conductive layer. The touch substrate according to claim 18.

22. A display device comprising a touch substrate according to any one of claims 1 to 21.

23. The display device further includes a display panel, the touch substrate and the display panel are arranged in a stacked manner, and the touch substrate is located on the light-emitting side of the display panel. The display device according to claim 22.

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