Touch-control substrate and manufacturing method therefor, and touch-control display apparatus

Abstract

The embodiments of the present disclosure belong to the technical field of touch-control display. Provided are a touch-control substrate and a manufacturing method therefor, and a touch-control display apparatus. The touch-control substrate comprises a plurality of first electrode structures (30), wherein at least one first electrode (31) close to a first wiring area (2) comprises a first sub-electrode (32) and a second sub-electrode (33), a gap (34) is provided between the first sub-electrode (32) and the second sub-electrode (33), and at least one first electrode (31) away from the first wiring area (2) is of an integrated structure; and at least some of second electrode lines (60) each comprise a first part (601) and a second part (602) connected to each other, the orthographic projection of the first part (601) on a substrate (10) being located in the gap (34), and the second part (602) being located in the first wiring area (2). The embodiments of the present disclosure can ensure a relatively high level of touch-control positioning accuracy of the touch-control substrate, and can reduce the border width of the touch-control substrate.

Description

Touch substrate and manufacturing method thereof, and touch display device Technical Field

[0001] The present disclosure relates to the field of touch display technology, and in particular to a touch substrate and a manufacturing method thereof, and a touch display device. Background Art

[0002] With the continuous development of touch display technology, touch display devices are widely used in the touch display field, such as smart phones, tablet computers, and smart car terminals. The touch substrate is an important component of the touch display device.

[0003] In the related art, a touch substrate includes a substrate and a touch function layer located on one side of the substrate. The substrate has a touch area and a routing area surrounding the touch area. The touch function layer includes multiple first electrode structures, multiple second electrode structures, multiple first electrode lines, and multiple second electrode lines. The multiple first electrode structures are located in the touch area and arranged along the second direction. The first electrode structure includes multiple first electrodes arranged along the first direction. The first direction and the second direction intersect. The multiple first electrodes are in the same layer and are electrically connected. The multiple second electrode structures are located in the touch area and arranged along the first direction. The second electrode structure includes multiple second electrodes arranged along the second direction. The multiple second electrodes are in the same layer and are electrically connected. The first electrode lines are located in the routing area at the top and / or bottom of the touch area and are connected to the first electrode structures. The second electrode lines are located in the routing area on the left and / or right side of the touch area and are connected to the second electrode structures.

[0004] However, the first electrode lines and the second electrode lines are located in a wiring area around the touch area, resulting in a larger border width of the touch substrate.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a touch substrate and a manufacturing method thereof, as well as a touch display device, which can ensure high touch positioning accuracy of the touch substrate and reduce the border width of the touch substrate. The technical solution is as follows:

[0007] On the one hand, a touch substrate is provided, comprising a substrate and a touch function layer located on one side of the substrate, the substrate having a touch area and a first wiring area, the touch area and the first wiring area being arranged and connected along a first direction, the touch function layer comprising a plurality of first electrode structures, a plurality of second electrode structures, a plurality of first electrode lines and a plurality of second electrode lines, the plurality of first electrode structures being located in the touch area and arranged along a second direction, the first direction and the second direction intersecting, the first electrode structure comprising a plurality of first electrodes arranged along the first direction, the plurality of first electrodes being in the same layer and electrically connected, and at least one first electrode in at least one first electrode structure, close to the first wiring area, comprising a first sub-electrode and a second sub-electrode, the first sub-electrode and the second sub-electrode There is a gap between the second sub-electrodes, and at least one first electrode away from the first wiring area is an integral structure; the multiple second electrode structures are located in the touch area and arranged along the first direction, the second electrode structure is insulated from the first electrode structure, and the second electrode structure includes multiple second electrodes arranged along the second direction, and the multiple second electrodes are in the same layer and electrically connected; the first electrode line is located in the first wiring area, and each first electrode structure is connected to at least one first electrode line; the second electrode line and the second electrode structure are connected one-to-one, and at least part of the second electrode line includes a first part and a second part that are connected, the orthographic projection of the first part on the substrate is located in the gap, and the second part is located in the first wiring area.

[0008] Optionally, the first electrode farthest from the first wiring area in each of the first electrode structures is an integral structure, and the remaining first electrodes except the first electrode farthest from the first wiring area include a first sub-electrode and a second sub-electrode.

[0009] Optionally, in at least one of the first electrode structures, there are multiple first electrodes on the side of the first connection point away from the first routing area, and the multiple first electrodes are all integral structures, and the first connection point is the connection point between the first part of the second electrode line and the second electrode structure.

[0010] Optionally, the number of the first electrode lines is greater than or equal to twice the number of the second electrode lines, and each of the second electrode lines includes the first part and the second part.

[0011] Optionally, the number of the first electrode lines is less than twice the number of the second electrode lines, a part of the multiple second electrode lines includes the first part and the second part, and another part of the second electrode lines includes a connected third part and a fourth part, the third part is located in the second routing area or the third part is located in the touch area and between the adjacent first electrode and the second electrode, the second routing area is located on at least one side of the touch area in the second direction and is connected to the touch area, and the fourth part is located in the first routing area.

[0012] Optionally, the connection point between the third part and the second electrode structure is a second connection point, and in the first direction, the distance between the connection point between the first part and the second electrode structure and the first routing area is greater than the distance between the second connection point and the first routing area.

[0013] Optionally, the connection point between the third part and the second electrode structure is a second connection point, the second connection point closest to the first routing area is located on a second electrode on the side that is closest to the first routing area in the first direction and closest to the touch area in the second direction, and the third part closest to the first routing area is located on the side of the second electrode where the second connection point closest to the first routing area is located, and is located between the second electrode where the second connection point closest to the first routing area is located and the adjacent first electrode.

[0014] Optionally, the gap is a straight line gap or a broken line gap.

[0015] Optionally, the substrate further has an opening area, which is located in the touch area and connected to the touch area; the first electrode structure at the opening area further includes a first ring electrode, which is on the same layer as the first electrode, and the second electrode structure at the opening area further includes a second ring electrode, which is on the same layer as the second electrode; the first ring electrode and the second ring electrode are on the same layer, the first ring electrode surrounds the opening area, the second ring electrode surrounds the first ring electrode, the first ring electrode is electrically connected to the adjacent first electrode through a first conductive bridge, and the second ring electrode is connected to the adjacent second electrode.

[0016] Optionally, the substrate further has an opening area, which is located in the touch area and connected to the touch area; the first electrode structure at the opening area further includes a first ring electrode, which is on the same layer as the first electrode, and the second electrode structure at the opening area further includes a second ring electrode, which is on the same layer as the second electrode; the first ring electrode and the second ring electrode are on the same layer, the second ring electrode surrounds the opening area, the first ring electrode surrounds the second ring electrode, the second ring electrode is electrically connected to the adjacent second electrode through a first conductive bridge, and the first ring electrode is connected to the adjacent first electrode.

[0017] Optionally, the touch function layer further includes an insulating layer and a plurality of second conductive bridges, the insulating layer being located on a side of the first electrode structure away from the substrate, and in the first direction, each of the second conductive bridges connects two adjacent first electrodes in the same first electrode structure through a via in the insulating layer.

[0018] Optionally, at least one of the first parts includes multiple sub-routing segments arranged along the first direction, and the touch function layer also includes multiple third conductive bridges. In the first direction, each of the third conductive bridges connects two adjacent sub-routing segments in the same first part through a via in the insulating layer.

[0019] Optionally, the third conductive bridge and the second conductive bridge are in the same layer.

[0020] Optionally, the touch function layer further includes a plurality of virtual electrodes, which are located between adjacent first electrodes and second electrodes and insulated from both the first electrodes and the second electrodes, and are in the same layer as the first electrodes and the second electrodes.

[0021] Optionally, the first sub-electrode closest to the first routing area in each of the first electrode structures is connected to one end of a first electrode line, and the second sub-electrode closest to the first routing area in each of the first electrode structures is connected to one end of a first electrode line. The touch function layer also includes a plurality of pads, which are located on a side of the first routing area away from the touch area, and each of the pads is connected to the second end of a first electrode line.

[0022] Optionally, the first sub-electrode closest to the first routing area in each of the first electrode structures is connected to one end of a first electrode line, and the second sub-electrode closest to the first routing area in each of the first electrode structures is connected to one end of a first electrode line. The touch function layer also includes multiple pads, multiple fourth conductive bridges and multiple connecting lines. The insulating layer is located on the side of the first electrode structure away from the substrate, and the multiple pads are located on the side of the first routing area away from the touch area. Each of the fourth conductive bridges is connected to the second ends of two first electrode lines connected to the first sub-electrode and the second sub-electrode in the same first electrode structure through a via in the insulating layer. The multiple connecting lines are located in the first routing area, one end of each of the connecting lines is connected to one of the pads and the second end of the connecting line is connected to one of the fourth conductive bridges.

[0023] Optionally, the fourth conductive bridge, the third conductive bridge and the second conductive bridge are all in the same layer.

[0024] Optionally, the substrate is a base substrate or a display panel.

[0025] On the other hand, a method for manufacturing a touch substrate is provided, comprising: providing a substrate, the substrate having a touch area and a first wiring area, the touch area and the first wiring area being arranged along a first direction and connected; forming a touch function layer on the substrate, the touch function layer comprising a plurality of first electrode structures, a plurality of second electrode structures, a plurality of first electrode lines and a plurality of second electrode lines, the plurality of first electrode structures being located in the touch area and arranged along a second direction, the first direction and the second direction intersecting, the first electrode structure comprising a plurality of first electrodes arranged along the first direction, the plurality of first electrodes being in the same layer and electrically connected, and at least one first electrode in at least one first electrode structure, close to the first wiring area, comprising a first sub-electrode and a second sub-electrode, the first sub-electrode and the second sub-electrode. There is a gap between the electrode and the second sub-electrode, and at least one first electrode away from the first wiring area is an integral structure; the multiple second electrode structures are located in the touch area and arranged along the first direction, the second electrode structure is insulated from the first electrode structure, and the second electrode structure includes multiple second electrodes arranged along the second direction, and the multiple second electrodes are in the same layer and electrically connected; the first electrode line is located in the first wiring area, and each first electrode structure is connected to at least one first electrode line; the second electrode line and the second electrode structure are connected one-to-one, and at least part of the second electrode line includes a first part and a second part that are connected, the orthographic projection of the first part on the substrate is located in the gap, and the second part is located in the first wiring area.

[0026] In another aspect, a touch display device is provided, comprising any one of the aforementioned touch substrates and a power supply, wherein the touch substrate is electrically connected to the power supply.

[0027] The technical solutions provided by the embodiments of the present disclosure have the following beneficial effects:

[0028] In the disclosed embodiments, in at least one first electrode structure, at least one first electrode near the first routing area includes a first sub-electrode and a second sub-electrode, with a gap between the first sub-electrode and the second sub-electrode. At least one first electrode away from the first routing area is a monolithic structure, with a first electrode line located in the first routing area, and each first electrode structure is connected to at least one first electrode line. Compared to a monolithic first electrode structure in which signals are transmitted via at least one first electrode line, dividing a portion of the first electrode into two can reduce the pattern area of ​​the first sub-electrode and the second sub-electrode, and reduce the spacing between the first sub-electrode and the second sub-electrode. Because a smaller electrode pattern area results in higher touch positioning accuracy, and a smaller electrode pattern spacing results in higher touch positioning accuracy, the touch positioning accuracy of the touch substrate can be effectively improved. Furthermore, the first electrode line is located in the first routing area, the second electrode line and the second electrode structure are connected one-to-one, and at least part of the second electrode line includes a first part and a second part that are connected, the orthographic projection of the first part on the substrate is located in the gap, and the second part is located in the first routing area. That is, part of this part of the second electrode line is located in the touch area, and the other part is located in the first routing area, which reduces the routing on the remaining edge sides of the touch area, thereby reducing the width of the routing area on the remaining edge sides of the touch area and reducing the border width of the touch substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] FIG1 is a schematic diagram of a planar structure of a touch substrate in the related art;

[0031] FIG2 is a schematic diagram of a planar structure of a touch substrate provided by an embodiment of the present disclosure;

[0032] FIG3 is a schematic diagram of a partial structure of the touch substrate in FIG2 ;

[0033] FIG4 is a schematic diagram of a planar structure of another touch substrate provided in an embodiment of the present disclosure;

[0034] FIG5 is a schematic diagram of a planar structure of another touch control substrate provided by an embodiment of the present disclosure;

[0035] FIG6 is a schematic diagram of a planar structure of another touch control substrate provided in an embodiment of the present disclosure;

[0036] FIG7 is a schematic diagram of the local structure of the dotted box A in FIG6;

[0037] FIG8 is a schematic diagram of a planar structure of another touch substrate provided by an embodiment of the present disclosure;

[0038] FIG9 is a schematic diagram of a partial structure of a touch substrate provided in an embodiment of the present disclosure;

[0039] FIG10 is a schematic diagram of a partial structure of another touch substrate provided in an embodiment of the present disclosure;

[0040] FIG11 is a schematic diagram of a partial cross-sectional structure of a touch substrate provided in an embodiment of the present disclosure;

[0041] FIG12 is a schematic diagram of a partial cross-sectional structure of another touch substrate provided in an embodiment of the present disclosure;

[0042] FIG13 is a schematic diagram of a partial structure of another touch substrate provided by an embodiment of the present disclosure;

[0043] FIG14 is a schematic diagram of a partial structure of another touch substrate provided by an embodiment of the present disclosure;

[0044] FIG15 is a schematic diagram of a partial structure of another touch substrate provided by an embodiment of the present disclosure;

[0045] FIG16 is a schematic diagram of a cross-sectional structure of a touch substrate provided in an embodiment of the present disclosure;

[0046] FIG17 is a flow chart of a method for manufacturing a touch substrate according to an embodiment of the present disclosure;

[0047] FIG18 is a flow chart of another method for manufacturing a touch substrate according to an embodiment of the present disclosure;

[0048] FIG19 is a schematic structural diagram of a touch display device provided in an embodiment of the present disclosure.

[0049] Legend: y, first direction x, second direction 1, touch area 2, first wiring area 3, second wiring area 4, opening area 1000, touch substrate 1001, power supply 10, substrate 11, driving backplane 12, light-emitting functional layer 13, packaging layer 14, touch functional layer 141, first touch metal layer 142, second touch metal layer 20, pad 30, first electrode structure 31, first electrode 32, first sub-electrode 33, second sub-electrode 34, gap 35, first annular electrode 40, first electrode ... Second electrode structure 41, second electrode 42, second annular electrode 50, first electrode line 51, connecting line 60, second electrode line 601, first portion 6011, sub-trace segment 602, second portion 603, third portion 604, fourth portion 61, first connection point 62, second connection point 70, first conductive bridge 71, second conductive bridge 72, third conductive bridge 73, fourth conductive bridge 80, insulating layer 801, first insulating layer 802, second insulating layer 81, virtual electrode DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0051] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," "third," and similar terms used in the patent specification and claims of this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," "right," "top," and "bottom" are used solely to indicate relative positional relationships. When the absolute position of the described objects changes, the relative positional relationships may also change accordingly. Furthermore, "A and / or B" indicates the existence of three situations: A, B, and A and B.

[0052] FIG1 is a schematic diagram of a planar structure of a touch substrate in the related art. As shown in FIG1 , the touch substrate includes a substrate 10' and a touch function layer located on the substrate 10'. The touch substrate has a touch area 1' and a wiring area 2' surrounding the touch area 1'. The touch function layer includes a plurality of first electrode structures 30', a plurality of second electrode structures 40', a plurality of first electrode lines 50', and a plurality of second electrode lines 60'. The plurality of first electrode structures 30' are located in the touch area 1' and arranged along the second direction x'. The first electrode structure 30' includes a plurality of first electrodes 31' arranged along the first direction y'. The first direction y' and the second direction x' intersect. The plurality of first electrodes 31' are in the same layer and are electrically connected. The plurality of second electrode structures 40' are located in the touch area 1' and arranged along the first direction y'. The second electrode structure 40' includes a plurality of second electrodes 41' arranged along the second direction x'. The plurality of second electrodes 41' are in the same layer and are electrically connected. One end of the first electrode line 50' is connected to the top of the first electrode structure 30 and passes through the routing area 2' located at the top, right, and bottom of the touch area 1'. One end of the second electrode line 60' is connected to the left end of the second electrode structure 40' and then passes through the routing area 2' located on the left and bottom of the touch area 1'. In Figure 1, the first and second electrode lines 50', 60' are located in the routing area 2' surrounding the touch area 1', which results in a larger border width for the touch substrate.

[0053] Figure 2 is a schematic diagram of the planar structure of a touch control substrate provided in an embodiment of the present disclosure. As shown in Figure 2, the touch control substrate includes a substrate 10 and a touch control function layer located on one side of the substrate 10. The substrate 10 has a touch control area 1 and a first wiring area 2. The touch control area 1 and the first wiring area 2 are arranged and connected along a first direction y. The touch control function layer includes multiple first electrode structures 30, multiple second electrode structures 40, multiple first electrode lines 50, and multiple second electrode lines 60. The multiple first electrode structures 30 are located in the touch control area 1 and arranged along a second direction x, where the first direction y and the second direction x intersect. The first electrode structures 30 include multiple first electrodes 31 arranged along the first direction y. The multiple first electrodes 31 are in the same layer and electrically connected. In each first electrode structure 30, at least one first electrode 31 near the first wiring area 2 includes a first sub-electrode 32 and a second sub-electrode 33, with a gap 34 between the first sub-electrode 32 and the second sub-electrode 33. The at least one first electrode 31 away from the first wiring area 2 is a monolithic structure. In each first electrode structure 30 in Figure 2, the top first electrode 31 is not divided into two parts in the second direction x, and the first electrode 31 is an integral structure. The remaining first electrodes 31 except the first electrode 31 are divided into two, namely, including a first sub-electrode 32 and a second sub-electrode 33.

[0054] The second electrode structures 40 are located in the touch area 1 and arranged along the first direction y. The second electrode structures 40 are insulated from the first electrode structures 30 . The second electrode structures 40 include a plurality of second electrodes 41 arranged along the second direction x. The plurality of second electrodes 41 are in the same layer and electrically connected.

[0055] The first electrode lines 50 are located in the first wiring area 2, and each first electrode structure 30 is connected to at least one first electrode line 50. The second electrode lines 60 are connected to the second electrode structures 40 in a one-to-one correspondence, and at least some of the second electrode lines 60 include a first portion 601 and a second portion 602 connected to each other. The orthographic projection of the first portion 601 on the substrate 10 is located in the gap 34, and the second portion 602 is located in the first wiring area 2.

[0056] Here, the same layer means formed by the same patterning process, or in contact with the same surface of the same film layer.

[0057] It should be noted that in the embodiment shown in Figure 2, in each first electrode structure 30, at least one first electrode 31 near the first wiring region 2 includes a first sub-electrode 32 and a second sub-electrode 33, with a gap 34 between the first sub-electrode 32 and the second sub-electrode 33. At least one first electrode 31 away from the first wiring region 2 is a monolithic structure. In other embodiments, only some first electrode structures 30 adopt this structure, while in the remaining first electrode structures 30, the first electrodes 31 all include the first sub-electrode 32 and the second sub-electrode 33, or in the remaining first electrode structures 30, the first electrodes 31 are all monolithic structures.

[0058] The at least one first electrode 31 close to the first wiring area 2 may be a first electrode 31 closest to the first wiring area 2 , or a plurality of first electrodes 31 close to the first wiring area 2 in a first electrode structure 30 .

[0059] In the disclosed embodiment, in at least one first electrode structure 30, at least one first electrode 31 near the first wiring area 2 includes a first sub-electrode 32 and a second sub-electrode 33, with a gap 34 between the first sub-electrode 32 and the second sub-electrode 33. At least one first electrode 31 away from the first wiring area 2 is a monolithic structure, with first electrode lines 50 located in the first wiring area 2. Each first electrode structure 30 is connected to at least one first electrode line 50. Compared to a monolithic first electrode 31 with signal transmission via at least one first electrode line 50, dividing a portion of the first electrode 31 into two can reduce the pattern area of ​​the first sub-electrode 32 and the second sub-electrode 33, and reduce the spacing between the first sub-electrode 32 and the second sub-electrode 33. Since a smaller electrode pattern area increases touch positioning accuracy, and a smaller electrode pattern spacing increases touch positioning accuracy, the touch positioning accuracy of the touch substrate can be effectively improved.

[0060] Furthermore, the second electrode lines 60 and the second electrode structures 40 are connected in a one-to-one correspondence, and at least part of the second electrode lines 60 includes a first portion 601 and a second portion 602 that are connected. The orthographic projection of the first portion 601 on the substrate 10 is located in the gap 34, and the second portion 602 is located in the first routing area 2. That is, a portion of this portion of the second electrode lines 60 is located in the touch area 1, and the other portion is located in the first routing area 2, thereby reducing the routing on the remaining edge sides of the touch area 1, thereby reducing the width of the routing area on the remaining edge sides of the touch area 1 and reducing the border width of the touch substrate.

[0061] In the embodiment of the present disclosure, the first electrode 31 may be a driving electrode (TX), and the second electrode 41 may be a sensing electrode (RX). However, the present disclosure is not limited thereto. For example, in other embodiments, the first electrode 31 may be a sensing electrode and the second electrode 41 may be a driving electrode.

[0062] Optionally, the first electrode 31 in each first electrode structure 30 that is farthest from the first wiring area 2 is an integral structure, and the remaining first electrodes 31 other than the first electrode 31 farthest from the first wiring area 2 include a first sub-electrode 32 and a second sub-electrode 33. As shown in Figure 2, in each first electrode structure 30, the topmost first electrode 31 is an integral structure. Since the specific touch position can be determined by detecting the change in mutual capacitance (that is, coupling capacitance) at the intersection of the first electrode structure 30 and the second electrode structure 40, except for the topmost row of first electrodes 31 that is an integral structure, the remaining first electrodes 31 are divided into two parts, so that each first electrode structure 30 can form a loop of the same shape, the capacitance data transmitted by the first electrode structure 30 is more uniform, and the touch integrated circuit processing is simpler.

[0063] Optionally, the first direction y and the second direction x are perpendicular to each other.

[0064] Figure 3 is a schematic diagram of a partial structure of the touch panel substrate in Figure 2 . Figure 3 may be a schematic diagram of a partial structure of the third row of second electrode structures 40 from top to bottom along the first direction y and the second column of first electrode structures 30 from left to right along the second direction x in Figure 2 . As shown in Figure 3 , the connection point between the first portion 601 of the second electrode line 60 and the second electrode structure 40 is a first connection point 61. In Figure 3 , multiple first electrodes 31 exist on the side of first connection point 61 away from the first routing area. Only the first electrode 31 farthest from the first routing area is a single, integral structure.

[0065] FIG4 is a schematic diagram of the planar structure of another touch control substrate provided in an embodiment of the present disclosure. As shown in FIG4 , in at least one first electrode structure 30, multiple first electrodes 31 are present on the side of the first connection point 61 away from the first wiring area 2, and the multiple first electrodes 31 are all integral structures. Thus, when multiple first electrodes 31 are present on the side of the first connection point 61 away from the first wiring area 2, these first electrodes 31 are all integral structures. Because a gap 34 needs to be formed on the side of the first connection point 61 close to the first wiring area 2 to facilitate the routing of the second electrode line 60, the first electrode 31 on the side of the first connection point 61 close to the first wiring area 2 needs to be separated into a first sub-electrode 32 and a second sub-electrode 33.

[0066] In one possible embodiment, the number of first electrode lines 50 is less than twice the number of second electrode lines 60. Therefore, it is impossible for all second electrode lines 60 to adopt the structures shown in Figures 2 and 3. Therefore, some second electrode lines 60 need to be routed from both sides of the touch area 1.

[0067] For example, in Figures 2 and 4 , a portion of the second electrode lines 60 includes the aforementioned first portion 601 and second portion 602, while another portion of the second electrode lines 60 includes a connected third portion 603 and fourth portion 604. The touch substrate further includes a second routing area 3, which is located on both sides of the touch area 1 in the second direction x and is connected to the touch area 1 and the first routing area 2, respectively. The fourth portion 604 is located in the first routing area 2, and the third portion 603 is located in the second routing area 3.

[0068] As shown in Figures 2 and 4, the connection point between the third part 603 and the second electrode structure 40 is the second connection point 62. The second connection point 62 is located on the side of the corresponding second electrode structure 40 close to the second routing area 3. In the first direction y, the distance H1 between the first connection point 61 and the first routing area 2 is greater than the distance H2 between the second connection point 62 and the first routing area 2.

[0069] In this way, the second electrode structure 40 close to the first routing area 2 is routed through the second routing area 3, and the distance H1 between the first connection point 61 and the first routing area 2 is greater than the distance H2 between the second connection point 62 and the first routing area 2. This can reduce the routing distance of the second electrode line 60 in the second routing area 3 on both sides of the touch area 1, which is beneficial to reducing the impedance of the second electrode line 60 in the second routing area 3.

[0070] Figure 5 is a schematic diagram of the planar structure of another touch panel substrate provided by an embodiment of the present disclosure. As shown in Figure 5, the second connection point 62 is located on the side of the corresponding second electrode structure 40 close to the second routing area 3, and the third portion 603 is located in the second routing area 3. In the first direction y, the distance H1 between the first connection point 61 and the first routing area 2 can also be smaller than the distance H2 between the second connection point 62 and the first routing area 2. In other words, the second connection point 62 can be located on the side away from the first routing area 2. In this way, only a few second electrode lines 60 are routed from both sides of the edge of the touch panel 1. Compared with all second electrode lines 60 being routed from both sides of the edge of the touch panel 1, the width of the border on both sides of the touch panel substrate is also reduced.

[0071] In Figures 2, 4, and 5, the second wiring area 3 is located on both sides of the touch area 1 in the second direction x and is connected to the touch area 1. In other embodiments, the second wiring area 3 may be located only on one side of the touch area 1 in the second direction x. In this way, the second electrode lines 60 are routed only from the left side, right side, and bottom side of the touch area, which can also reduce the width of the borders on both sides of the touch substrate.

[0072] Figure 6 is a schematic diagram of the planar structure of another touch substrate provided in an embodiment of the present disclosure. Figure 7 is a schematic diagram of the partial structure at the dotted box A in Figure 6. As shown in Figures 6 and 7, the third portion 603 is located in the touch area 1 and between the adjacent first and second electrodes 31 and 41. Compared to the touch substrate shown in the embodiment of Figure 4, the main difference lies in the different positions of the second connection point 62 and the third portion 603. This helps reduce the width of the border on both sides of the touch substrate, compared to the second connection line 60 being routed from the second routing area 3 on both sides of the edge of the touch area 1.

[0073] The second connection point 62 in the dashed box A is also the second connection point 62 closest to the first wiring area 2. This second connection point 62 is located on a second electrode 41 that is closest to the first wiring area 2 in the first direction y and closest to the touch area 1 in the second direction x, that is, the second electrode 41 located in the lower right corner of Figures 6 and 7. The third portion 603 closest to the first wiring area 2 is located on the side of the second electrode 41 that is closest to the first wiring area 2 and between the second electrode 41 and the adjacent first electrode 31.

[0074] As shown in Figure 6, the second connection point 62 can also be located on a second electrode 41 on the side of the second electrode structure 40 closest to the first wiring area 2 in the second direction x, that is, on the leftmost second electrode 41 of the second electrode structure 40 in the second row from bottom to top in Figure 6. The third part 603 can also be partially located on the side of the second electrode 41 close to the first wiring area 2, and between the second electrode 41 and the adjacent first electrode 31, and partially located in the second wiring area 3.

[0075] Figure 8 is a schematic diagram of the planar structure of another touch control substrate provided in an embodiment of the present disclosure. As shown in Figure 8, the number of first electrode lines 50 is greater than twice the number of second electrode lines 60, and each second electrode line 60 includes a first portion 601 and a second portion 602. This allows all second electrode lines 60 and first electrode lines 50 to exit from the first routing area 2, leaving no routing along the remaining edges of the touch control area 1, thereby achieving a borderless touch control substrate. In other embodiments, the number of first electrode lines 50 is equal to twice the number of second electrode lines 60, and each second electrode line 60 includes a first portion 601 and a second portion 602.

[0076] In other embodiments, the number of first electrode lines 50 is greater than or equal to twice the number of second electrode lines 60. Alternatively, a portion of the plurality of second electrode lines 60 may include a first portion 601 and a second portion 602, while another portion of the second electrode lines 60 includes a connected third portion 603 and a fourth portion 604, with the third portion 603 being located in the second routing area 3 or in the touch area 1. This also reduces the border width on both sides of the touch substrate, compared to routing all second electrode lines 60 along the edges of the touch area 1.

[0077] Figure 9 is a schematic diagram of a partial structure of a touch panel substrate provided by an embodiment of the present disclosure. Figure 9 may be a schematic diagram of the partial structure at the dashed box B in Figure 4 . As shown in Figure 9 , gap 34 is a linear strip-shaped gap. A linear strip-shaped gap is a gap whose two adjacent sides are both straight and parallel. This linear strip-shaped gap facilitates the routing of the second electrode line 60.

[0078] Figure 10 is a schematic diagram of the partial structure of another touch substrate provided in an embodiment of the present disclosure. Figure 10 may be a schematic diagram of the partial structure at dashed box B in Figure 4 . As shown in Figure 10 , gap 34 is a zigzag linear gap, i.e., a strip-shaped gap in which two adjacent sides are parallel to each other and are both zigzag lines. This zigzag linear gap can reduce the likelihood of light shadows, ensuring the display quality of a touch display device using this touch substrate.

[0079] FIG11 is a schematic diagram of a partial cross-sectional structure of a touch substrate provided in an embodiment of the present disclosure. FIG11 may be a schematic diagram of the cross-sectional structure at line CC in FIG9 . As shown in FIG9 and FIG11 , the touch function layer further includes an insulating layer 80 and a plurality of second conductive bridges 71 . The insulating layer 80 is located on a side of the first electrode structure 30 away from the substrate 10 . In the first direction y, each second conductive bridge 71 connects two adjacent first electrodes 31 in the same first electrode structure 30 through a via in the insulating layer 80 . The insulating layer 80 can insulate the plurality of first electrode structures 30 from each other, the plurality of second electrode structures 40 from each other, and the first electrode structure 30 from the second electrode structure 40 . The second conductive bridge 71 can electrically connect the plurality of first electrodes 31 in the same first electrode structure 30 .

[0080] Here, there are many ways for the second conductive bridge 71 to connect two adjacent first electrodes 31 in the same first electrode structure 30. As shown in the embodiments of Figures 2 to 6 and Figures 8 to 11, in the same first electrode structure 30, in the first direction y, the second conductive bridge 71 connects two adjacent first sub-electrodes 32 through the vias in the insulating layer 80; the second conductive bridge 71 connects two adjacent second sub-electrodes 33 through the vias in the insulating layer 80; the second conductive bridge 71 connects the adjacent first sub-electrodes 32 and the first electrode 31 of the overall structure through the vias in the insulating layer 80; and the second conductive bridge 71 connects the adjacent second sub-electrodes 33 and the first electrode 31 of the overall structure through the vias in the insulating layer 80.

[0081] Since the second conductive bridge 71 needs to connect the two adjacent first sub-electrodes 32 through the via holes in the insulating layer 80, and the insulating layer 80 also needs to be provided on the second conductive bridge 71, illustratively, the insulating layer 80 includes a first insulating layer 801 and a second insulating layer 802 stacked in sequence in a direction away from the substrate 10, the second conductive bridge 71 is located between the first insulating layer 801 and the second insulating layer 802, and connects the two adjacent first sub-electrodes 32 through the via holes in the first insulating layer 801.

[0082] Optionally, at least one first portion 601 includes multiple sub-track segments 6011 arranged along the first direction y, and the touch function layer further includes multiple third conductive bridges 72. In the first direction y, each third conductive bridge 72 connects two adjacent sub-track segments 6011 in the same first portion 601 through a via in the insulating layer 80. Because different second electrode structures 40 are insulated from each other, the third conductive bridges 72 can electrically connect the sub-track segments 6011 in the same first portion 601 located in the gap 34 in the first direction y.

[0083] Optionally, the third conductive bridge 72 and the second conductive bridge 71 are formed in the same layer, so that the third conductive bridge 72 and the second conductive bridge 71 can be manufactured simultaneously, thereby saving process costs.

[0084] FIG12 is a schematic diagram of a partial cross-sectional structure of another touch substrate provided in an embodiment of the present disclosure. FIG12 may be a schematic diagram of the cross-sectional structure at line DD in FIG9 . As shown in FIG11 and FIG12 , the touch function layer further includes a plurality of dummy electrodes (DUMMY) 81. The dummy electrodes 81 are located between adjacent first electrodes 31 and second electrodes 41 and are insulated from the first electrodes 31 and second electrodes 41. The dummy electrodes 81 are on the same layer as the first electrodes 31 and second electrodes 41. The dummy electrodes 81 can fill the touch substrate to make the thickness of the touch substrate more uniform and the physical structure more stable. They can also be used to increase the transparency of the touch substrate or improve touch performance.

[0085] Optionally, the shapes of the first electrode 31 and the second electrode 41 of the integral structure are similar to a rhombus, and the sides of the rhombus are wavy sides.

[0086] Exemplarily, the dummy electrode 81 located between the first electrode 31 and the second electrode 41 may be a wavy strip structure, extending along the gap between the adjacent first electrodes 31 and the second electrode 41 .

[0087] Optionally, the touch function layer includes at least two touch metal layers. As shown in FIG11 , the touch function layer may include two touch metal layers, namely a first touch metal layer 141 and a second touch metal layer 142 .

[0088] For example, the second connection line 60 and the dummy electrode 81 may be located in the first touch metal layer 141 , and the second conductive bridge 71 and the third conductive bridge 72 may be located in the second touch metal layer 142 .

[0089] Optionally, the first electrode structure 30 and the second electrode structure 40 are both located in the same touch metal layer, and the first electrodes 31 and the second electrodes 41 are alternately arranged in a third direction, which intersects the first direction y and the second direction x.

[0090] In other embodiments, the first electrode structure 30 and the second electrode structure 40 are located in different touch metal layers, and the orthographic projections of the first electrodes 31 and the orthographic projections of the second electrodes 41 on the supporting surface of the substrate 10 are alternately arranged in a third direction. Here, the supporting surface refers to the surface where the touch functional layer is located.

[0091] As shown in Figures 2, 4 to 6, and 8, the first sub-electrode 32 closest to the first wiring area 2 in each first electrode structure 30 is connected to one end of a first electrode line 50, and the second sub-electrode 33 closest to the first wiring area 2 in each first electrode structure 30 is connected to one end of a first electrode line 50. The touch function layer also includes multiple pads 20, which are located on the side of the first wiring area 2 away from the touch area 1, and each pad 20 is connected to the second end of a first electrode line 50. In this way, a loop is formed by the first electrode 31 split into two sub-electrodes in each first electrode structure 30 and the first electrode 31 of the integral structure located above each first electrode structure 30, thereby achieving a 2T1R driving mode while ensuring a narrow border width of the touch substrate.

[0092] FIG13 is a schematic diagram of a partial structure of another touch substrate provided by an embodiment of the present disclosure. As shown in FIG13 , the first sub-electrode 32 closest to the first routing area 2 in each first electrode structure 30 is connected to one end of a first electrode line 50, and the second sub-electrode 33 closest to the first routing area 2 in each first electrode structure 30 is connected to one end of a first electrode line 50. The touch function layer also includes a plurality of fourth conductive bridges 73 and a plurality of connecting wires 51. The plurality of fourth conductive bridges 73 are insulated from the second electrode lines 60 by an insulating layer. Each fourth conductive bridge 73 is connected to the second ends of two first electrode lines 50 connected to the first sub-electrode 31 and the second sub-electrode 32 in the same first electrode structure 30 through a via in the insulating layer. The plurality of connecting wires 51 are located in the first routing area 2. One end of each connecting wire 51 is connected to a pad 20, and the second end of the connecting wire 51 is connected to a fourth conductive bridge 73. In this way, the first electrode 31 divided into two sub-electrodes in each first electrode structure 30 can be connected through the fourth conductive bridge 73, and the capacitance signal can be transmitted through a connecting line 51, thereby realizing a 1T1R driving mode while ensuring a narrow frame width of the touch substrate.

[0093] Optionally, the fourth conductive bridge 73 is in the same layer as the third conductive bridge 72 and the second conductive bridge 71. In this way, the fourth conductive bridge 73, the third conductive bridge 72 and the second conductive bridge 71 can be manufactured simultaneously, thereby saving process costs.

[0094] Optionally, the first electrode structure 30 , the second electrode structure 40 , the first conductive bridge 70 , the second conductive bridge 71 , the third conductive bridge 72 and the fourth conductive bridge 73 are all made of transparent conductive materials.

[0095] For example, the transparent conductive material includes indium tin oxide (ITO) or silver palladium copper alloy.

[0096] FIG14 is a partial structural diagram of another touch substrate provided by an embodiment of the present disclosure. As shown in FIG14 , the substrate 10 further has an opening area 4 , which is located in and connected to the touch area 1 , that is, the touch area 1 surrounds the opening area 4 .

[0097] In the embodiment shown in FIG14 , the opening region 4 is located at the intersection of the first electrode structure 30 and the second electrode structure 40. The first electrode structure 30 at the opening region 4 further includes a first annular electrode 35, which is located on the same layer as the first electrode 31. The second electrode structure 40 at the opening region 4 further includes a second annular electrode 42, which is located on the same layer as the second electrode 41.

[0098] The first annular electrode 35 and the second annular electrode 42 are in the same layer. In Figure 14, the first annular electrode 35 surrounds the opening area 4, and the second annular electrode 42 surrounds the first annular electrode 35. The first annular electrode 35 is electrically connected to the adjacent first electrode 31 through the first conductive bridge 70, and the second annular electrode 42 is connected to the adjacent second electrode 41.

[0099] Figure 15 is a schematic diagram of a partial structure of another touch control substrate provided by an embodiment of the present disclosure. As shown in Figure 15, the second annular electrode 42 surrounds the opening area 4, and the first annular electrode 35 surrounds the second annular electrode 42. The second annular electrode 42 is electrically connected to the adjacent second electrode 41 via the first conductive bridge 70, and the first annular electrode 35 is connected to the adjacent first electrode 35. This ensures reliable electrical connection between the first electrode 31 in the first electrode structure 30 located in the opening area 4, and also ensures reliable electrical connection between the second electrode 41 in the second electrode structure 40 located in the opening area 4.

[0100] In other embodiments, the first annular electrode 35 and the second annular electrode 42 can be located in different touch metal layers, the first annular electrode 35 surrounds the opening area 4, the first annular electrode 35 is connected to the adjacent first electrode 31, and the second annular electrode 42 surrounds the opening area 4, and the second annular electrode 42 is connected to the adjacent second electrode 41.

[0101] In one possible implementation, the opening area 4 may also be located in the touch area 1 where the first electrode 31 of the integral structure is located, or in the touch area 1 where the second electrode 41 is located. It suffices for the first electrode 31 to surround the opening area 4, or for the second electrode 41 to surround the opening area 4, without affecting the touch effect of the touch functional layer.

[0102] Optionally, the substrate 10 is a base substrate or a display panel. The touch substrate can be an add-on touch substrate, an on-cell touch substrate, or an in-cell touch substrate.

[0103] Optionally, the display panel can be an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, a micro light-emitting diode (Micro LED) display panel or a liquid crystal (LC) display panel, etc.

[0104] The following description will be made by taking an OLED display panel as an example.

[0105] Figure 16 is a schematic cross-sectional view of a touch panel substrate according to an embodiment of the present disclosure. As shown in Figure 16 , substrate 10 is a display panel and includes a driving backplane 11 , a light-emitting functional layer 12 , and an encapsulation layer 13 stacked in sequence near a touch functional layer 14 .

[0106] Optionally, the driving backplane 11 may include a base substrate and a driving circuit layer stacked in sequence in a direction close to the touch function layer 14. The driving backplane may be a low-temperature polycrystalline silicon oxide (LTPO) backplane or a low-temperature polycrystalline silicon (LTPS) backplane.

[0107] Optionally, the driving circuit layer includes a plurality of thin film transistors (TFTs).

[0108] Taking the LTPO backplane as an example, multiple TFTs include low-temperature polysilicon TFTs and metal oxide TFTs.

[0109] Optionally, the driving circuit layer also includes a bottom light-shielding layer, a buffer layer, a first active layer, a first gate insulating layer, a first gate layer, a third insulating layer, a second gate layer, a second gate insulating layer, a second active layer, a third gate insulating layer, a third gate layer, an interlayer dielectric layer, a first source and drain layer, a passivation layer, a first planarization layer, a second source and drain layer, and a second planarization layer, which are stacked in sequence along the direction close to the touch function layer 14.

[0110] Optionally, the light-emitting functional layer 12 includes an anode layer, a pixel definition layer, a light-emitting layer, and a cathode layer stacked in sequence in a direction close to the touch functional layer 14 .

[0111] Optionally, the encapsulation layer 13 includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked in sequence in a direction close to the touch function layer 14 .

[0112] FIG17 is a flow chart of a method for manufacturing a touch control substrate according to an embodiment of the present disclosure. As shown in FIG17 , the manufacturing method includes:

[0113] In step S101 , a substrate is provided.

[0114] The substrate has a touch area and a first wiring area, and the touch area and the first wiring area are arranged along a first direction and connected.

[0115] In step S102 , a touch function layer is formed on the substrate.

[0116] The touch function layer includes multiple first electrode structures, multiple second electrode structures, multiple first electrode lines, and multiple second electrode lines. The multiple first electrode structures are located in the touch area and arranged along a second direction, intersecting the first and second directions. The first electrode structures include multiple first electrodes arranged along the first direction, sharing the same layer and being electrically connected. In at least one first electrode structure, at least one first electrode near the first wiring area includes a first sub-electrode and a second sub-electrode, with a gap between the first and second sub-electrodes. At least one first electrode located away from the first wiring area is a monolithic structure. Multiple second electrode structures are located in the touch area and arranged along the first direction, insulated from the first and second electrode structures. The second electrode structures include multiple second electrodes arranged along the second direction, sharing the same layer and being electrically connected. The first electrode lines are located in the first wiring area, with each first electrode structure connected to at least one first electrode line. The second electrode lines are connected to the second electrode structures in a one-to-one correspondence. At least some second electrode lines include a first portion and a second portion connected to each other, with the orthographic projection of the first portion on the substrate located within the gap and the second portion located in the first wiring area.

[0117] The beneficial effects of the embodiments of the present disclosure can be seen in the related embodiment of FIG2 , which will not be described in detail here.

[0118] FIG18 is a flow chart of another method for manufacturing a touch control substrate according to an embodiment of the present disclosure. As shown in FIG18 , the manufacturing method includes:

[0119] In step S201 , a substrate is provided.

[0120] Optionally, the substrate may be a base substrate or a display panel.

[0121] In step S202 , a first touch metal layer is formed on the substrate.

[0122] For example, a first metal layer can be formed on a substrate by deposition, for example, and a photoresist structure is obtained on the first metal layer by processes such as photoresist coating, exposure, and development. The first metal layer is etched using the photoresist structure as a mask to form a first touch metal layer.

[0123] Optionally, the first touch metal layer includes a plurality of first electrode structures, a plurality of second electrode structures, a plurality of first electrode lines, and a plurality of second electrode lines.

[0124] Optionally, the first touch metal layer further includes a plurality of dummy electrodes.

[0125] In other embodiments, the first electrode structure and the second electrode structure may be located in different touch metal layers and formed using different patterning processes. Accordingly, multiple first electrode lines and multiple second electrode lines may be located in different touch metal layers, or multiple dummy electrodes may be located in different touch metal layers and formed using different patterning processes. This disclosure does not impose any limitations on this.

[0126] In step S203 , a first insulating layer is formed on the first touch metal layer.

[0127] For example, a first initial insulating layer can be formed on the first touch metal layer by, for example, deposition. A photoresist structure is formed on the first initial insulating layer by processes such as photoresist coating, exposure, and development. The first initial insulating layer is then etched using the photoresist structure as a mask to form the first insulating layer.

[0128] In step S204 , a second touch metal layer is formed on the first insulating layer.

[0129] For example, a second metal layer can be formed on the first insulating layer by deposition, for example. A photoresist structure is formed on the second metal layer by processes such as photoresist coating, exposure, and development. The second metal layer is then etched using the photoresist structure as a mask to form a second touch metal layer.

[0130] Optionally, the second touch metal layer includes a plurality of first conductive bridges, a plurality of second conductive bridges, and a plurality of third conductive bridges.

[0131] In other embodiments, the plurality of first conductive bridges, the plurality of second conductive bridges, and the plurality of third conductive bridges may also be located in different touch metal layers and formed through different patterning processes, which is not limited in the present disclosure.

[0132] In step S205 , a second insulating layer is formed on the second touch metal layer to obtain an insulating layer.

[0133] For example, a second initial insulating layer can be formed on the second touch metal layer by, for example, deposition. A photoresist structure is formed on the second initial insulating layer through processes such as photoresist coating, exposure, and development. The second initial insulating layer is then etched using the photoresist structure as a mask to form the second insulating layer. The first insulating layer and the second insulating layer together constitute the insulating layer.

[0134] Optionally, the structure, shape and positional relationship of each layer refer to the relevant embodiments of Figures 2 to 16, and detailed description is omitted here.

[0135] FIG19 is a schematic structural diagram of a touch display device provided by an embodiment of the present disclosure. As shown in FIG19 , the touch display device includes the aforementioned touch substrate 1000 and a power supply 1001 , and the touch substrate 1000 is electrically connected to the power supply 1001 .

[0136] Optionally, the touch display device can be any product or component with a touch display function, such as a smart phone, a tablet computer, or a smart vehicle-mounted terminal.

[0137] The above description does not limit the present disclosure in any form. Although the present disclosure has been disclosed as above through the embodiments, it is not intended to limit the present disclosure. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments with equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A touch substrate, characterized in that: It comprises a substrate (10) and a touch function layer located on one side of the substrate (10), The substrate (10) has a touch area (1) and a first wiring area (2), the touch area (1) and the first wiring area (2) are arranged along a first direction and connected, the touch function layer comprises a plurality of first electrode structures (30), a plurality of second electrode structures (40), a plurality of first electrode lines (50) and a plurality of second electrode lines (60), The plurality of first electrode structures (30) are located in the touch area (1) and arranged along a second direction, the first direction and the second direction intersect, the first electrode structure (30) comprises a plurality of first electrodes (31) arranged along the first direction, the plurality of first electrodes (31) are in the same layer and are electrically connected, and in at least one of the first electrode structures (30), at least one first electrode (31) close to the first wiring area (2) comprises a first sub-electrode (32) and a second sub-electrode (33), a gap (34) is provided between the first sub-electrode (32) and the second sub-electrode (33), and at least one first electrode (31) away from the first wiring area (2) is an integral structure; The plurality of second electrode structures (40) are located in the touch area (1) and arranged along the first direction, the second electrode structure (40) and the first electrode structure (30) are insulated, the second electrode structure (40) comprises a plurality of second electrodes (41) arranged along the second direction, the plurality of second electrodes (41) are in the same layer and are electrically connected; The first electrode line (50) is located in the first wiring area (2), and each of the first electrode structures (30) is connected to at least one first electrode line (50); The second electrode line (60) and the second electrode structure (30) are connected in a one-to-one correspondence, and at least part of the second electrode line (60) includes a first part (601) and a second part (602) that are connected, wherein the orthographic projection of the first part (601) on the substrate (10) is located in the gap (34), and the second part (602) is located in the first routing area (2).

2. The touch substrate according to claim 1, wherein: A first electrode (31) in each of the first electrode structures (30) that is farthest from the first wiring area (2) is an integral structure, and the remaining first electrodes (31) other than the first electrode (31) that is farthest from the first wiring area (2) include a first sub-electrode (32) and a second sub-electrode (33).

3. The touch substrate according to claim 1, wherein: In at least one of the first electrode structures (30), a plurality of the first electrodes (31) are present on a side of the first connection point (61) away from the first wiring area (2), and the plurality of the first electrodes (31) are all integral structures, and the first connection point (61) is a connection point between the first portion (601) of the second electrode line (60) and the second electrode structure (40).

4. The touch control substrate according to any one of claims 1 to 3, characterized in that: The number of the first electrode lines (50) is greater than or equal to twice the number of the second electrode lines (60), and each of the second electrode lines (60) includes the first part (601) and the second part (602).

5. The touch control substrate according to any one of claims 1 to 3, characterized in that: The number of the first electrode lines (50) is less than twice the number of the second electrode lines (60), A portion of the plurality of second electrode lines (60) includes the first portion (601) and the second portion (602), and another portion of the second electrode lines (60) includes a third portion (603) and a fourth portion (604) connected to each other, the third portion (603) being located in the second routing area (3) or the third portion (603) being located in the touch area (1) and between the adjacent first electrode (31) and the second electrode (41), the second routing area (3) being located on at least one side of the touch area (1) in the second direction and being connected to the touch area (1), and the fourth portion (604) being located in the first routing area (2).

6. The touch substrate according to claim 5, wherein: The connection point between the third portion (603) and the second electrode structure (40) is a second connection point (62), and in the first direction, the distance between the connection point between the first portion (601) and the second electrode structure (40) and the first wiring area (2) is greater than the distance between the second connection point (62) and the first wiring area (2).

7. The touch substrate according to claim 5, wherein: The connection point between the third portion (603) and the second electrode structure (40) is a second connection point (62); the second connection point (62) closest to the first wiring area (2) is located on a second electrode (41) on the side closest to the first wiring area (2) in the first direction and closest to the touch area (1) in the second direction; the third portion (603) closest to the first wiring area (2) is located on a side of the second electrode (41) where the second connection point (62) closest to the first wiring area (2) is located, close to the first wiring area (2), and is located between the second electrode (41) where the second connection point (62) closest to the first wiring area (2) is located and the adjacent first electrode (31).

8. The touch substrate according to any one of claims 1 to 3 and claims 6 to 7, characterized in that: The gap (34) is a straight line gap or a broken line gap.

9. The touch control substrate according to any one of claims 1 to 3 and claims 6 to 7, characterized in that: The substrate further has an opening area (4), and the opening area (4) is located in the touch area (1) and is connected to the touch area (1); The first electrode structure (30) at the opening area (4) further includes a first annular electrode (35), the first annular electrode (35) and the first electrode (31) being in the same layer; the second electrode structure (40) at the opening area (4) further includes a second annular electrode (42), the second annular electrode (42) and the second electrode (41) being in the same layer; The first annular electrode (35) and the second annular electrode (42) are in the same layer, the first annular electrode (35) surrounds the opening area (4), the second annular electrode (42) surrounds the first annular electrode (35), the first annular electrode (35) is electrically connected to the adjacent first electrode (31) through a first conductive bridge (70), and the second annular electrode (42) is connected to the adjacent second electrode (41).

10. The touch control substrate according to any one of claims 1 to 3 and claims 6 to 7, characterized in that: The substrate further has an opening area (4), and the opening area (4) is located in the touch area (1) and is connected to the touch area (1); The first electrode structure (30) at the opening area (4) further includes a first annular electrode (35), the first annular electrode (35) and the first electrode (31) being in the same layer; the second electrode structure (40) at the opening area (4) further includes a second annular electrode (42), the second annular electrode (42) and the second electrode (41) being in the same layer; The first annular electrode (35) and the second annular electrode (42) are in the same layer, the second annular electrode (42) surrounds the opening area (4), the first annular electrode (35) surrounds the second annular electrode (42), and the second annular electrode (42) is connected to the adjacent second electrode via a first conductive bridge (70). (41) is electrically connected, and the first annular electrode (35) is connected to the adjacent first electrode (31).

11. The touch control substrate according to any one of claims 1 to 3 and claims 6 to 7, characterized in that: The touch function layer further comprises an insulating layer (80) and a plurality of second conductive bridges (71), wherein the insulating layer (80) is located on a side of the first electrode structure (30) away from the substrate (10), and in the first direction, each of the second conductive bridges (71) connects two adjacent first electrodes (31) in the same first electrode structure (30) through a via hole in the insulating layer (80).

12. The touch substrate according to claim 11, wherein: At least one of the first parts (601) includes a plurality of sub-routing segments (6011) arranged along the first direction, and the touch function layer further includes a plurality of third conductive bridges (72). In the first direction, each of the third conductive bridges (72) connects two adjacent sub-routing segments (6011) in the same first part (601) through a via in the insulating layer (80).

13. The touch substrate according to claim 12, wherein: The third conductive bridge (72) and the second conductive bridge (71) are on the same layer.

14. The touch control substrate according to any one of claims 1 to 3, claims 6 to 7, and claims 12 to 13, characterized in that: The touch function layer further includes a plurality of virtual electrodes (81), wherein the virtual electrodes (81) are located between the adjacent first electrodes (31) and the second electrodes (41) and are insulated from both the first electrodes (31) and the second electrodes (41), and the virtual electrodes (81) are in the same layer as the first electrodes (31) and the second electrodes (41).

15. The touch control substrate according to any one of claims 1 to 3, claims 6 to 7, and claims 12 to 13, characterized in that: The first sub-electrode (32) closest to the first wiring area (2) in each of the first electrode structures (30) is connected to one end of a first electrode line (50), and the second sub-electrode (33) closest to the first wiring area (2) in each of the first electrode structures (30) is connected to one end of a first electrode line (50), The touch function layer further comprises a plurality of pads (20), wherein the plurality of pads (20) are located on a side of the first wiring area (2) away from the touch area (1), and each of the pads (20) is connected to one of the first wiring areas (2). The second end of an electrode wire (50) is connected.

16. The touch substrate according to claim 12, wherein: The first sub-electrode (32) closest to the first wiring area (2) in each of the first electrode structures (30) is connected to one end of a first electrode line (50), and the second sub-electrode (33) closest to the first wiring area (2) in each of the first electrode structures (30) is connected to one end of a first electrode line (50), The touch function layer further comprises a plurality of pads (20), a plurality of fourth conductive bridges (73) and a plurality of connecting wires (51); the insulating layer (80) is located on a side of the first electrode structure (30) away from the substrate (10); the plurality of pads (20) are located on a side of the first wiring area (2) away from the touch area (1); each of the fourth conductive bridges (73) is connected to the second ends of two first electrode wires (50) connected to the first sub-electrode (31) and the second sub-electrode (32) in the same first electrode structure (30) through a via hole in the insulating layer (80); the plurality of connecting wires (51) are located in the first wiring area (2); one end of each connecting wire (51) is connected to one of the pads (20) and the second end of the connecting wire (51) is connected to one of the fourth conductive bridges (73).

17. The touch substrate according to claim 16, wherein: The fourth conductive bridge (73) is on the same layer as the third conductive bridge (72) and the second conductive bridge (71).

18. The touch control substrate according to any one of claims 1 to 3, claims 6 to 7, claims 12 to 13, and claims 16 to 17, characterized in that: The substrate (10) is a base substrate or a display panel.

19. A method for manufacturing a touch substrate, characterized in that: include: A substrate (10) is provided, wherein the substrate (10) has a touch area (1) and a first wiring area (2), wherein the touch area (1) and the first wiring area (2) are arranged along a first direction and are connected; A touch function layer is formed on the substrate, wherein the touch function layer includes a plurality of first electrode structures (30), a plurality of second electrode structures (40), a plurality of first electrode lines (50) and a plurality of second electrode lines (60). The plurality of first electrode structures (30) are located in the touch area (1) and arranged along a second direction, the first direction and the second direction intersect, the first electrode structure (30) includes a plurality of first electrodes (31) arranged along the first direction, the plurality of first electrodes (31) are in the same layer and electrically connected, at least one In the first electrode structure (30), at least one first electrode (31) close to the first wiring area (2) comprises a first sub-electrode (32) and a second sub-electrode (33), a gap (34) is provided between the first sub-electrode (32) and the second sub-electrode (33), and at least one first electrode (31) away from the first wiring area (2) is an integral structure; The plurality of second electrode structures (40) are located in the touch area (1) and arranged along the first direction, the second electrode structure (30) and the first electrode structure (40) are insulated, the second electrode structure (40) comprises a plurality of second electrodes (41) arranged along the second direction, the plurality of second electrodes (41) are in the same layer and are electrically connected; The first electrode line (50) is located in the first wiring area (2), and each of the first electrode structures (30) is connected to at least one first electrode line (50); The second electrode line (60) and the second electrode structure (30) are connected in a one-to-one correspondence, and at least part of the second electrode line (60) includes a first part (601) and a second part (602) that are connected, wherein the orthographic projection of the first part (601) on the substrate (10) is located in the gap (34), and the second part (602) is located in the first routing area (2).

20. A touch display device, characterized in that: It comprises a touch control substrate (1000) according to any one of claims 1 to 18 and a power supply (1001), wherein the touch control substrate (1000) is electrically connected to the power supply (1001).

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