Touch substrate and display device

Abstract

The utility model relates to a touch control substrate and a display device, the touch control substrate comprises a touch control area and an edge area surrounding the periphery of the touch control area, the edge area comprises a binding area located on one side of the touch control area in the first direction, the touch control area is provided with a plurality of touch control electrodes, the edge area is provided with touch control wires, and the binding area is provided with a plurality of touch control electrodes. One end of the touch wire is connected with the touch electrode, and the other end of the touch wire extends to the binding area; the touch wires comprise a plurality of first wires which are arranged in parallel at intervals and a plurality of second wires which are arranged in parallel at intervals, the first wires and the second wires are arranged in different layers, and the extension directions of the first wires and the second wires are the same; the first wire comprises a first extension section extending in the first direction, the second wire comprises a second extension section extending in the first direction, and the first extension section and the second extension section are alternately arranged in the direction parallel to the touch area. The numbers of the first wires and the second wires corresponding to at least part of the first extension sections and the second extension sections which are adjacently arranged are not adjacent.

Description

Technical Field

[0001] This utility model relates to the field of display product manufacturing technology, and in particular to a touch substrate and a display device. Background Technology

[0002] With the rapid development of touch technology, touch substrates are becoming increasingly widely used, and based on market demand, they are increasingly trending towards narrow bezels. Specifically, a touch substrate includes touch electrodes and touch traces for providing signals to the electrodes. These touch traces are distributed around the perimeter of the touch substrate. Related technologies use metal traces as touch traces, which include multiple spaced traces. In these technologies, the touch traces are arranged in a single layer, resulting in a large proportion of the bezel occupied by the trace area, making the bezel wide and preventing the touch screen from meeting the design requirements for narrow bezels. To address the problem of wide traces limiting narrow bezels, some related technologies use a double-layer wiring method, alternating touch traces on different layers. However, because the Touch IC (touch IC) retrieves information from adjacent touch channels for coordinate calculations, the coupling capacitance between adjacent touch channels can significantly interfere with the calculation results, leading to touch abnormalities. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a touch substrate and a display device, which solves the problem that the coupling capacitance between adjacent touch channels interferes with the touch IC's operational structure, leading to touch abnormalities, when the touch wiring uses a double-layer wiring method.

[0004] To achieve the above objectives, the technical solution adopted in this utility model embodiment is: a touch substrate, including a touch area and an edge area surrounding the touch area, the edge area including a bonding area located on one side of the touch area in a first direction, the touch area being provided with a plurality of touch channels, the edge area being provided with touch traces, one end of the touch traces being connected to the touch channels, and the other end of the touch traces extending to the bonding area;

[0005] The touch traces include a plurality of parallel spaced first traces and a plurality of parallel spaced second traces, wherein the first traces and the second traces are disposed in different layers and the first traces and the second traces extend in the same direction;

[0006] The first trace includes a first extension segment extending along the first direction, and the second trace includes a second extension segment extending along the first direction. In a second direction parallel to the touch area and perpendicular to the first direction, the first extension segment and the second extension segment are alternately arranged. At least one touch electrode is provided between the two touch channels corresponding to the first extension segment and the second extension segment that are at least partially adjacent.

[0007] Optionally, in the first direction, the touch area includes a first region and a second region arranged adjacent to each other, a plurality of first traces are connected to the touch channel of the first region, and a plurality of second traces are connected to the touch channel of the second region.

[0008] Optionally, the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1.

[0009] The first region is located on the side of the second region away from the binding area. The m-th second trace includes a third extension segment with one end extending from the second region. The other end of the third extension segment is connected to the second extension segment of the m-th second trace, and the third extension segment is perpendicular to the second extension segment.

[0010] Optionally, the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1.

[0011] The first region is located on the side of the second region away from the binding area. The m-th second routing line includes an outgoing end led out from the second region and a crossover portion located between the outgoing end and the second extension segment. The crossover portion includes m-1 stepped crossover segments corresponding one-to-one with the m-1 first routing lines. The stepped crossover segment includes a first crossover segment parallel to the second extension segment and a second crossover segment set at an angle to the first crossover segment. The second crossover segment intersects with the corresponding first routing line.

[0012] Optionally, in the first direction, the touch area includes at least one first region and at least two second regions alternately arranged, or the touch area includes at least two first regions and at least one second region alternately arranged;

[0013] Multiple first traces are connected to the touch channel of the first area, and multiple second traces are connected to the touch channel of the second area.

[0014] Optionally, along the first direction, the touch area includes a first region and a second region arranged adjacent to each other, wherein the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other, where m is a positive integer greater than or equal to 1.

[0015] The first region is located on the side of the second region away from the binding area. The m-th second trace includes a third extension segment with one end extending from the second region. The other end of the third extension segment is connected to the second extension segment of the m-th second trace, and the third extension segment is perpendicular to the second extension segment.

[0016] Optionally, along the first direction, the touch area includes a first region and a second region arranged adjacent to each other, wherein the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other, where m is a positive integer greater than or equal to 1.

[0017] The first region is located on the side of the second region away from the binding area. The m-th second routing line includes an outgoing end led out from the second region and a crossover portion located between the outgoing end and the second extension segment. The crossover portion includes m-1 stepped crossover segments corresponding one-to-one with the m-1 first routing lines. The stepped crossover segment includes a first crossover segment parallel to the second extension segment and a second crossover segment set at an angle to the first crossover segment. The second crossover segment intersects with the corresponding first routing line.

[0018] Optionally, it also includes a touch chip, which includes a plurality of bonding pins bonded to the touch traces. In the extension direction of the touch chip, the plurality of bonding pins are sequentially numbered. In the first direction, the plurality of touch channels are sequentially numbered, and the numbers of the plurality of bonding pins correspond one-to-one with the numbers of the touch channels to which the plurality of touch traces are connected.

[0019] Optionally, in the extension direction of the touch chip, the touch chip includes a third region bonded to the first trace and a fourth region bonded to the second trace.

[0020] Optionally, the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1.

[0021] The m-th second trace includes a fifth extension segment with one end connected to the second extension segment, the other end of the fifth extension segment crossing m-1 first traces and connected to the bonding pin of the fourth region, and the fifth extension segment is perpendicular to the second extension segment.

[0022] Optionally, it also includes a touch chip, which includes a plurality of bonding pins that are bonded to the touch traces. The plurality of bonding pins are connected one-to-one with the plurality of touch traces. The plurality of bonding pins include a first bonding pin that is bonded to the first trace and a second bonding pin that is bonded to the second trace. The first bonding pin and the second bonding pin are alternately arranged.

[0023] Optionally, the first trace includes a fourth extension between the first extension and the bonding pin, and the second trace includes a fifth extension between the second extension and the bonding pin, wherein the fourth extension and the fifth extension are non-overlapping in a direction perpendicular to the touch area.

[0024] Optionally, an insulating layer is provided between the first trace and the second trace, and a via is provided on the insulating layer. The bonding area is provided with a connection electrode that is connected to the first trace or the second trace through the via.

[0025] Optionally, the touch channel is a sensing electrode channel and / or a driving electrode channel.

[0026] Optionally, the touch electrode body in the touch channel can be configured as a single layer or a double layer.

[0027] This utility model embodiment also provides a display device, including the above-described touch substrate.

[0028] The beneficial effects of this invention are as follows: The touch traces include multiple parallel and spaced first traces and multiple parallel and spaced second traces. The first traces and second traces are arranged on different layers, and their extension directions are the same. That is, the touch traces include first traces and second traces arranged on different layers. The first trace includes a first extension segment extending along the first direction, and the second trace includes a second extension segment extending along the first direction. In a direction parallel to the touch area, the first extension segment and the second extension segment are alternately arranged. At least two touch channels connected to at least partially adjacent first extension segments and second extension segments are spaced apart by at least one touch channel. This ensures that adjacent traces generating coupling capacitance are not adjacent touch channels, thereby avoiding interference problems. Attached Figure Description

[0029] Figure 1This diagram illustrates the distribution of touch traces in related technologies.

[0030] Figure 2 A schematic diagram showing the distribution of touch traces in related technologies;

[0031] Figure 3 A schematic diagram showing the distribution of touch wiring in an embodiment of this utility model;

[0032] Figure 4 A schematic diagram showing the distribution of touch wiring in an embodiment of this utility model;

[0033] Figure 5 A schematic diagram showing the distribution of touch wiring in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram showing the connection between the touch wiring and the touch chip in an embodiment of this utility model;

[0035] Figure 7 This diagram illustrates the connection between the touch traces and the touch chip in an embodiment of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0037] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0038] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include certain tolerances. Taking into account the measurement and the tolerances associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of said value.

[0039] Furthermore, throughout this document, unless otherwise defined, the terms “substantially,” “essentially,” “approximately,” and “about” are used to describe and explain small variations. When used with an event or situation, these terms can cover situations where the event or situation occurs precisely or approximately. For example, when used with a numerical value, these terms can include a range of variation of the numerical value less than or equal to 10%, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%. The term “substantially coplanar” can refer to two surfaces arranged along the same plane within a micrometer range, for example, within 40 μm, 30 μm, 20 μm, 10 μm, or 1 μm.

[0040] Figure 1 and Figure 2This is a schematic diagram of the distribution of touch traces in related technologies. The touch substrate includes a touch area and an edge area surrounding the touch area. The edge area includes a bonding area located on one side of the touch area in a first direction. The touch area includes multiple touch channels, each touch channel including a strip-shaped touch electrode, or each touch channel including multiple interconnected block-shaped touch electrodes. The multiple touch channels may include a first touch channel extending along the first direction and a second touch channel extending along a second direction. The first touch channel includes multiple driving electrodes Tx, and the second touch channel includes multiple sensing electrodes Rx. Both the touch traces connected to the first touch channel and the touch traces connected to the second touch channel can be double-layered. For example, the touch traces connected to the first touch channel can be double-layered, with the odd-numbered channel traces 1 (green traces numbered Tx1, Tx3, Tx5…Tx2n-1, where n is a positive integer) designed in the first metal layer, and the even-numbered channel traces 2 (blue traces numbered Tx2, Tx4, Tx6…Tx2n, where n is a positive integer) designed in the second metal layer. This arrangement can effectively avoid the problem of metal residue caused by insufficient exposure machine precision when the traces are too close together. However, when the touch IC performs coordinate calculations, it will retrieve information from adjacent touch channels to assist in the calculation. Therefore, the coupling capacitance between adjacent touch channels will greatly interfere with the calculation results, leading to touch abnormalities.

[0041] To address the aforementioned issues, this embodiment provides a touch substrate in which the touch channels connected by adjacent touch traces are not adjacent, and the touch traces led out from adjacent touch channels are not adjacent, thereby resolving the problem of coupling capacitance between adjacent touch channels affecting the coordinate calculation of the touch IC.

[0042] For details, please refer to Figures 3-5 The touch substrate includes a touch area 6 and an edge area surrounding the touch area 6. The edge area includes a bonding area located on one side of the touch area 6 in a first direction. The touch area 6 is provided with a plurality of touch channels. Each touch channel includes a plurality of interconnected block-shaped touch electrodes, or each touch channel includes a strip-shaped touch electrode. The edge area is provided with touch traces. One end of the touch trace is connected to the touch channel, and the other end of the touch trace extends to the bonding area.

[0043] The touch traces include a plurality of parallel spaced first traces 1 and a plurality of parallel spaced second traces 2, wherein the first traces 1 and the second traces 2 are arranged in different layers and the first traces 1 and the second traces 2 extend in the same direction.

[0044] The first trace 1 includes traces along the first direction (reference). Figure 3The first extension segment 11 extends in the X direction, and the second trace 2 includes a second extension segment 21 extending in the first direction, and in a second direction (referring to the X direction) parallel to the touch area 6 and perpendicular to the first direction. Figure 3 In the Y direction, the first extension segment 11 and the second extension segment 21 are alternately arranged. The touch channel numbers corresponding to the first trace 1 and the second trace 2 of the first extension segment 11 and the second extension segment 2 that are at least partially adjacent are not adjacent. That is, at least one touch channel (which can be defined as an intermediate touch channel) is provided between the two touch channels connected by the first trace 1 and the second trace 2 corresponding to the first extension segment 11 and the second extension segment 2 that are at least partially adjacent. The touch trace connected to the intermediate touch channel can be the first trace or the second trace, or the intermediate touch channel includes at least two touch channels, and the touch trace connected to some of the intermediate touch channels is the first trace, and the touch trace connected to some of the intermediate touch channels is the second trace.

[0045] It should be noted that the touch area 6 includes multiple touch channels, and the multiple touch channels are arranged along a second direction perpendicular to the first direction (see reference). Figure 3 The touch channels are arranged in a Y-direction (in the first direction), and multiple touch channels are arranged side by side along the first direction. At least one end of each touch channel along its extension direction is connected to the touch trace. The touch channels are numbered sequentially along the first direction. In this embodiment, the touch channels connected to the first trace 1 and the second trace 2 corresponding to at least partially adjacent first extension segments 11 and second extension segments 21 are not adjacent in number. That is, among the multiple alternating first extension segments 11 and multiple second extension segments 21, at least one first extension segment 11 and one second extension segment 21 are adjacent. The touch channels connected to the first trace 1 and the second trace 2 corresponding to these two extension segments are not adjacent in number. At least one touch channel is spaced apart between the touch channels connected to the first trace 1 and the second trace 2 corresponding to these two extension segments. For example, the touch channels are... Figure 3 In this paper, the distribution of touch traces is explained using touch channel 3, which includes touch electrodes, as an example. The first direction (refer to the first direction) from the touch area 6 to the bonding area is described. Figure 3 Multiple touch channels are sequentially numbered (Tx1, Tx2, Tx3…Txn) in the X direction, where n is a positive integer. Figure 3 (Only a portion of the wiring is shown in the image.) Figure 3 The blue trace in the image is the first trace 1, and the green trace is the second trace 2. Figure 3 As can be obtained from the above, the first trace 1 includes traces along the first direction (reference). Figure 3 The first extension segment 11 extends along the X direction, and the second trace 2 includes a second extension segment 21 extending along the first direction. The touch channels connected by the first trace 1 and the second trace 2 corresponding to the adjacent first extension segment 11 and the second extension segment 21 are not adjacent. For example, the first extension segment 11 of the first trace 1 connected to the touch channel numbered Tx1 and the second extension segment 21 of the second trace 2 of the touch channel numbered Tx5 are adjacent. However, it is obvious that the first touch channel numbered Tx1 and the touch channel numbered Tx5 are not adjacent. Touch channels numbered Tx2, Tx3, and Tx4 are provided between the touch channel numbered Tx1 and the touch channel numbered Tx5, which solves the problem of the coupling capacitance between adjacent touch channels affecting the coordinate calculation of the touch IC.

[0046] refer to Figure 3 As shown, in an exemplary embodiment, in the first direction, the touch area 6 includes a first area 4 and a second area 5 arranged adjacent to each other, multiple first traces 1 are connected to the touch channel of the first area 4, and multiple second traces 2 are connected to the touch channel of the second area 5.

[0047] By adopting the above scheme, the outgoing ends of multiple first wirings 1 and multiple second wirings 2 are respectively located in the first region 4 and the second region 5, which are arranged adjacently. The first outgoing segment 12 of the first wiring is connected to the corresponding touch channel of the first region 4, and the third extension segment 22 of the second wiring is connected to the corresponding touch channel of the second region 5, which is beneficial to separate the touch channels with adjacent numbers.

[0048] In an exemplary embodiment, the first extension segment 11 of the m-th first trace 1 originating from the first region 4 and the second extension segment 21 of the m-th second trace 2 originating from the second region 5 are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1.

[0049] The first region 4 is located on the side of the second region 5 away from the binding area. The m-th second trace 2 includes a third extension segment 22 extending from the second region 5 at one end. The other end of the third extension segment 22 is connected to the second extension segment 21 of the m-th second trace 2, and the third extension segment 22 is perpendicular to the second extension segment 21.

[0050] refer to Figure 3The second extension segment 21 of the second trace 2 connected to the touch channel numbered Tx5 is adjacent to the first extension segment 11 of the first trace 1 connected to the touch channel numbered Tx1. The third extension segment 22 of the second trace 2 connected to the touch channel numbered Tx5 extends from the touch area 6 along the second direction (reference). Figure 3 The third extension segment 22 is a straight line segment, which extends from the Y direction in the middle to the second extension segment 21 of the second trace 2 connected to the touch channel numbered Tx5.

[0051] In an exemplary embodiment, the first extension segment 11 of the m-th first trace 1 originating from the first region 4 and the second extension segment 21 of the m-th second trace 2 originating from the second region 5 are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1.

[0052] The first region 4 is located on the side of the second region 5 away from the binding area. The m-th second routing line 2 includes an outgoing end led out from the second region 5 and a crossover portion located between the outgoing end and the second extension section 21. The crossover portion includes m-1 stepped crossover segments 23 corresponding to m-1 first routing lines 1. The stepped crossover segment 23 includes a first crossover segment 201 parallel to the second extension section 21 and a second crossover segment 202 set at an angle to the first crossover segment 201. The second crossover segment 202 intersects with the corresponding first routing line 1.

[0053] In an exemplary embodiment, the first cross segment 201 and the second cross segment 202 are arranged perpendicularly, but this is not a limitation.

[0054] refer to Figure 4 , Figure 4 The diagram shows 8 blue touch traces and 8 green touch traces. Figure 4 The touch channels connected by the blue touch traces are numbered from left to right as Tx1, Tx2, Tx3, Tx4, Tx5, Tx6, Tx7, and Tx8. The first extension segment 11 of the blue touch trace connected to the touch channel numbered Tx4 and the second extension segment 21 of the green touch trace connected to the touch channel numbered Tx13 are arranged adjacent to each other. The crossover portion of the green touch trace connected to the touch channel numbered Tx13 includes four stepped crossover segments 23 that correspond one-to-one with the four first traces 1 (blue touch traces).

[0055] In an exemplary embodiment, in the first direction, the touch area 6 includes at least one first region 4 and at least two second regions 5 alternately arranged, or the touch area 6 includes at least two first regions 4 and at least one second region 5 alternately arranged;

[0056] Multiple first traces 1 are connected to the touch channel of the first area 4, and multiple second traces 2 are connected to the touch channel of the second area 5.

[0057] refer to Figure 5 In an exemplary embodiment, along the first direction, the touch area 6 includes a first region 4 and a second region 5 arranged adjacent to each other, wherein the first extension segment 11 of the m-th first trace 1 derived from the first region 4 and the second extension segment 21 of the m-th second trace 2 derived from the second region 5 are arranged adjacent to each other, where m is a positive integer greater than or equal to 1.

[0058] The first region 4 is located on the side of the second region 5 away from the binding area. The m-th second trace 2 includes a third extension segment 22 extending from the second region 5 at one end. The other end of the third extension segment 22 is connected to the second extension segment 21 of the m-th second trace 2, and the third extension segment 22 is perpendicular to the second extension segment 21.

[0059] refer to Figure 5 As shown, Figure 5 The diagram illustrates two first regions 4 and two second regions 5, which are alternately arranged in the first direction. The first region 4 is provided with at least two first traces 1, and the second region 5 is provided with at least two second traces 2, so that there is at least one pair of first traces 1 and second traces 2 among the plurality of first traces 1 and second traces 2. The numbers of the pair of first traces 1 and second traces 2 are not adjacent, but the first extension segment 11 and the second extension segment 21 corresponding to the pair of first traces 1 and second traces 2 are arranged adjacently.

[0060] It should be noted that dividing the touch area 6 into multiple parts, namely multiple first areas 4 and multiple second areas 5, can further reduce the overlap area of ​​the first trace 1 and the second trace 2 in the direction perpendicular to the touch substrate. However, if multiple first areas 4 and multiple second areas 5 are alternately arranged in the first direction, the more multiple first areas 4 and multiple second areas 5 there are, the fewer touch traces there will be on each first area 4 and each second area 5. This will result in adjacent first traces 1 and second traces 2 corresponding to adjacent first extension segments 11 and second extension segments 21 being arranged adjacently, for example... Figure 5 The first trace 1, connected to the touch channel numbered Tx2, and the second trace 2, connected to the touch channel numbered Tx3, are therefore, in order to avoid forming Figure 1 The wiring method shown is that the first trace 1 and the second trace 2 are alternately arranged, each first area 4 includes at least two first traces 1, and each second area 5 includes at least two second traces 2.

[0061] In an exemplary embodiment, the number of first traces 1 included in each first region 4 is the same as the number of second traces 2 included in each second region 5, which facilitates wiring, but is not limited to this arrangement.

[0062] In an exemplary embodiment, the number of first traces 1 included in each first region 4 and the number of second traces 2 included in each second region 5 may also be different.

[0063] In an exemplary embodiment, the number of first traces 1 in a portion of the first region 4 is the same as the number of second traces 2 included in a portion of the second region 5.

[0064] In an exemplary embodiment, along the first direction, the touch area 6 includes a first area 4 and a second area 5 arranged adjacent to each other, wherein the first extension segment 11 of the m-th first trace 1 derived from the first area 4 and the second extension segment 21 of the m-th second trace 2 derived from the second area 5 are arranged adjacent to each other, where m is a positive integer greater than or equal to 1.

[0065] The first region 4 is located on the side of the second region 5 away from the binding area. The m-th second routing line 2 includes an outgoing end led out from the second region 5 and a crossover portion located between the outgoing end and the second extension segment 21. The crossover portion includes m-1 stepped crossover segments corresponding to m-1 first routing lines 1. The stepped crossover segments include a first crossover segment parallel to the second extension segment 21 and a second crossover segment set at an angle to the first crossover segment. The second crossover segment intersects with the corresponding first routing line 1.

[0066] refer to Figure 6 In an exemplary embodiment, the touch substrate further includes a touch chip, which includes a plurality of bonding pins 7 that are bonded to the touch traces. In the extension direction of the touch chip, the plurality of bonding pins 7 are sequentially numbered (it should be noted that the number of the bonding pin is the number of the corresponding touch channel). In the first direction, the plurality of touch channels are sequentially numbered, and the number of the plurality of bonding pins 7 corresponds one-to-one with the number of the plurality of touch channels.

[0067] In an exemplary embodiment, in the extension direction of the touch chip, the touch chip includes a third region 81 bonded to the first trace 1 and a fourth region 82 bonded to the second trace 2.

[0068] In an exemplary embodiment, the first trace 1 includes a fourth extension 13 connected to the first extension 11. The fourth extension 13 is perpendicular to the first extension 11, and is a straight line segment. The other end of the fourth extension is connected to a corresponding bonding pin.

[0069] In an exemplary embodiment, the second trace 2 includes a fifth extension 24 connected to the second extension 21. The fifth extension 24 is perpendicular to the second extension 21, and is a straight line segment. The other end of the fifth extension 24 is connected to a corresponding bonding pin.

[0070] In an exemplary embodiment, along the first direction, the first extension segment 11 of the m-th first trace 1 originating from the first region 4 and the second extension segment 21 of the m-th second trace 2 originating from the second region 5 are arranged adjacent to each other, where m is a positive integer greater than or equal to 2.

[0071] The m-th second trace 2 includes a fifth extension segment with one end connected to the second extension segment 21. The other end of the fifth extension segment crosses m-1 first traces 1 and is connected to the bonding pin of the fourth region. The fifth extension segment is perpendicular to the second extension segment 21.

[0072] refer to Figure 6 The first extension 11 of the first trace 1 connected to the touch channel numbered Tx21 and the second extension 21 of the second trace 2 connected to the touch channel numbered Tx45 are arranged adjacent to each other.

[0073] refer to Figure 7 In an exemplary embodiment, a touch chip is also included. The touch chip includes a plurality of bonding pins that are bonded to the touch traces. The plurality of bonding pins are connected one-to-one with the plurality of touch traces. The plurality of bonding pins include a first bonding pin that is bonded to the first trace 1 and a second bonding pin that is bonded to the second trace 2. The first bonding pin and the second bonding pin are alternately arranged.

[0074] refer to Figure 7 The first trace 1 includes a fourth extension 13 located between the first extension 11 and the bonding pin, and the second trace 2 includes a fifth extension 24 located between the second extension 21 and the bonding pin. The fourth extension 13 and the fifth extension 24 are arranged in a non-overlapping manner in a direction perpendicular to the touch area.

[0075] Touch chips are generally mass-produced, meaning the touch pins on the chip are numbered sequentially. The order of the bonding pins on the touch chip cannot be changed. Therefore, when the first trace 1 and the second trace 2 are bonded to the touch chip, the touch trace connected to the touch channel numbered Tx21 needs to be connected to a bonding pin with the same number. The first trace 1 and the second trace 2 overlap. (Refer to...) Figure 6 The fifth extension of the second trace 2 needs to cross a portion of the first trace 1 to connect to the corresponding bonding pin.

[0076] In some implementations, the touch chip is redesigned, that is, the order of the bonding pins on the touch chip is changed, and the bonding pins are renumbered according to the routing order of the touch traces. Figure 6 and Figure 7 , Figure 7 The pin numbers in the bonding interface are shuffled and renumbered. Multiple bonding pins are no longer numbered sequentially, but are numbered according to the routing order of the touch traces connected to the touch channel. For example... Figure 7The touch channels are numbered from Tx1 to Tx48. Touch traces connected to touch channels numbered Tx1 to Tx24 are designated as first traces 1, and touch traces connected to touch channels numbered Tx25 to Tx48 are designated as second traces 2. Along a first direction, a plurality of first traces 1 include an m-th first trace 1, and a plurality of second traces 2 include an m-th second trace 2. The first extension segment 11 of the m-th first trace 1 and the second extension segment 21 of the m-th second trace 2 are adjacent to each other. 24 For example, when m is 1, the touch channel corresponding to the first first trace 1 is numbered Tx1, and the touch channel corresponding to the first second trace 2 is numbered Tx25. The first extension segment 11 of the first trace 1 connected to the touch channel numbered Tx1 and the second extension segment 21 of the second trace 2 connected to the touch channel numbered Tx25 are arranged adjacently. The multiple bonding pins are numbered from right to left as follows: Tx48, Tx24, Tx47, Tx23...Tx26, Tx2, Tx25, Tx1. Figure 6 and Figure 7 , Figure 7 The pin-binding configuration reduces the overlap area between the first trace 1 and the second trace 2.

[0077] In an exemplary embodiment, an insulating layer is provided between the first trace 1 and the second trace 2, and a via is provided on the insulating layer. The bonding area is provided with a connection electrode that is connected to the first trace 1 or the second trace 2 through the via.

[0078] In an exemplary embodiment, the first trace 1 and the second trace 2 are made of metal, including copper, aluminum, silver, molybdenum-aluminum-molybdenum, silver-copper alloy, copper-nickel alloy, etc. This embodiment does not limit the metal in any way.

[0079] In an exemplary embodiment, an insulating layer is provided between the first trace 1 and the second trace 2. The insulating layer is made of a fluid insulating material, such as resin, which not only insulates the first trace 1 and the second trace 2, but also fixes and protects the first trace 1 and the second trace 2.

[0080] In an exemplary embodiment, the bonding area is provided with bonding pads for bonding and connecting with bonding pins of the touch chip, and the insulating layer is provided with vias in a first region of the bonding area, so that touch traces disposed on different layers from the bonding pads are electrically connected to the bonding pads.

[0081] In an exemplary embodiment, the insulating layer is provided with a via in the second region of the touch area, so that the touch traces disposed on different layers from the corresponding touch electrodes are connected to the corresponding touch electrodes.

[0082] In an exemplary embodiment, the touch channel is a sensing electrode channel and / or a driving electrode channel.

[0083] In an exemplary embodiment, the touch electrode body in the touch channel is configured as a single layer or a double layer.

[0084] It should be noted that the above description is based on the example of the touch channel corresponding to the touch trace being the touch channel corresponding to the driving electrode Tx. However, this is not a limitation, and the touch trace of the touch channel corresponding to the sensing electrode Rx can also be set in the above manner.

[0085] This utility model embodiment also provides a display device, including the above-described touch substrate.

[0086] The display device includes, but is not limited to, components such as: a radio frequency unit, a network module, an audio output unit, an input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply. Those skilled in the art will understand that the above-described structure of the display device does not constitute a limitation on the display device; the display device may include more or fewer of the aforementioned components, or combine certain components, or arrange different components. In embodiments of this utility model, the display device includes, but is not limited to, a monitor, a mobile phone, a tablet computer, a television set, a wearable electronic device, and a navigation display device.

[0087] The display device can be any product or component with display function, such as a television, monitor, digital photo frame, mobile phone, or tablet computer. The display device also includes a flexible circuit board, a printed circuit board, and a backplate.

[0088] Furthermore, embodiments of this disclosure provide an electronic device including a memory, a processor, and one or more programs stored in the memory and executable on the processor. When the one or more programs are executed by the processor, the electronic device performs the silicon wafer pick-and-place method as described above.

[0089] In one embodiment, this disclosure also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0090] The aforementioned computer-readable storage medium, since the computer program stored in its memory is executed by the processor to implement the steps in the above-described method embodiments, can similarly bring about the beneficial effects of the above-described silicon wafer placement and removal method, which will not be elaborated here.

[0091] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0092] The following points need to be explained:

[0093] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0094] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present disclosure, i.e., these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0095] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0096] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A touch substrate, characterized in that, It includes a touch area and an edge area surrounding the touch area. The edge area includes a binding area located on one side of the touch area in a first direction. The touch area is provided with multiple touch channels. The edge area is provided with touch traces. One end of the touch traces is connected to the touch channels, and the other end of the touch traces extends to the binding area. The touch traces include a plurality of parallel spaced first traces and a plurality of parallel spaced second traces, wherein the first traces and the second traces are disposed in different layers and the first traces and the second traces extend in the same direction; The first trace includes a first extension segment extending along the first direction, and the second trace includes a second extension segment extending along the first direction. In a second direction parallel to the touch area and perpendicular to the first direction, the first extension segment and the second extension segment are alternately arranged. At least one touch channel is provided between the two touch channels connected to the first extension segment and the second extension segment that are at least partially adjacent.

2. The touch substrate according to claim 1, characterized in that, In the first direction, the touch area includes a first region and a second region arranged adjacent to each other, a plurality of first traces are connected to the touch channel of the first region, and a plurality of second traces are connected to the touch channel of the second region.

3. The touch substrate according to claim 2, characterized in that, The first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1; The first region is located on the side of the second region away from the binding area. The m-th second trace includes a third extension segment with one end extending from the second region. The other end of the third extension segment is connected to the second extension segment of the m-th second trace, and the third extension segment is perpendicular to the second extension segment.

4. The touch substrate according to claim 2, characterized in that, The first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1; The first region is located on the side of the second region away from the binding area. The m-th second routing line includes an outgoing end led out from the second region and a crossover portion located between the outgoing end and the second extension segment. The crossover portion includes m-1 stepped crossover segments corresponding one-to-one with the m-1 first routing lines. The stepped crossover segment includes a first crossover segment parallel to the second extension segment and a second crossover segment set at an angle to the first crossover segment. The second crossover segment intersects with the corresponding first routing line.

5. The touch substrate according to claim 1, characterized in that, In the first direction, the touch area includes at least one first region and at least two second regions that are alternately arranged, or the touch area includes at least two first regions and at least one second region that are alternately arranged; Multiple first traces are connected to the touch channel of the first area, and multiple second traces are connected to the touch channel of the second area.

6. The touch substrate according to claim 5, characterized in that, Along the first direction, the touch area includes a first region and a second region arranged adjacent to each other, wherein the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other, where m is a positive integer greater than or equal to 1; The first region is located on the side of the second region away from the binding area. The m-th second trace includes a third extension segment with one end extending from the second region. The other end of the third extension segment is connected to the second extension segment of the m-th second trace, and the third extension segment is perpendicular to the second extension segment.

7. The touch substrate according to claim 5, characterized in that, Along the first direction, the touch area includes a first region and a second region arranged adjacent to each other, wherein the first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other, where m is a positive integer greater than or equal to 1; The first region is located on the side of the second region away from the binding area. The m-th second routing line includes an outgoing end led out from the second region and a crossover portion located between the outgoing end and the second extension segment. The crossover portion includes m-1 stepped crossover segments corresponding one-to-one with the m-1 first routing lines. The stepped crossover segment includes a first crossover segment parallel to the second extension segment and a second crossover segment set at an angle to the first crossover segment. The second crossover segment intersects with the corresponding first routing line.

8. The touch substrate according to claim 2, characterized in that, It also includes a touch chip, which includes a plurality of bonding pins that are bonded to the touch traces. In the extension direction of the touch chip, the plurality of bonding pins are sequentially numbered. In the first direction, the plurality of touch channels are sequentially numbered, and the numbers of the plurality of bonding pins correspond one-to-one with the numbers of the touch channels to which the plurality of touch traces are connected.

9. The touch substrate according to claim 8, characterized in that, In the extending direction of the touch chip, the touch chip includes a third region bonded to the first trace and a fourth region bonded to the second trace.

10. The touch substrate according to claim 9, characterized in that, The first extension segment of the m-th first trace originating from the first region and the second extension segment of the m-th second trace originating from the second region are arranged adjacent to each other in the second direction, where m is a positive integer greater than or equal to 1; The m-th second trace includes a fifth extension segment with one end connected to the second extension segment, the other end of the fifth extension segment crossing m-1 first traces and connected to the bonding pin of the fourth region, and the fifth extension segment is perpendicular to the second extension segment.

11. The touch substrate according to claim 1, characterized in that, It also includes a touch chip, which includes multiple bonding pins that are bonded to the touch traces. The multiple bonding pins are connected one-to-one with the multiple touch traces. The multiple bonding pins include a first bonding pin that is bonded to the first trace and a second bonding pin that is bonded to the second trace. The first bonding pin and the second bonding pin are alternately arranged.

12. The touch substrate according to claim 11, characterized in that, The first trace includes a fourth extension between the first extension and the bonding pin, and the second trace includes a fifth extension between the second extension and the bonding pin. The fourth extension and the fifth extension are arranged in a non-overlapping manner in a direction perpendicular to the touch area.

13. The touch substrate according to claim 1, characterized in that, An insulating layer is provided between the first trace and the second trace, and a via is provided on the insulating layer. The bonding area is provided with a connection electrode that is connected to the first trace or the second trace through the via.

14. The touch substrate according to claim 1, characterized in that, The touch channel is a sensing electrode channel and / or a driving electrode channel.

15. The touch substrate according to claim 1, characterized in that, The touch electrode body in the touch channel is either single-layered or double-layered.

16. A display device, characterized in that, Includes the touch substrate as described in any one of claims 1-15.

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