Touch structure and electronic device

Abstract

The utility model provides a touch control structure which comprises a substrate, a first electrode and a second electrode. The electrode array comprises a plurality of first channels and a plurality of second channels, the first channels and the second channels are located in the induction area, each first channel extends in the first direction, each second channel extends in the second direction, and at least one second channel is arranged between every two adjacent first electrodes in the first channels; the insulating layer is provided with a plurality of through holes; the plurality of first-class wires are electrically connected with the plurality of first channels to the binding area; the second-class wires are located on the first surface and electrically connect the second channels to the binding area through at least part of the through holes; each second channel comprises at least two electrode groups, each electrode group comprises a plurality of second electrodes which are arranged at intervals along the second direction, and the second electrodes of different electrode groups are alternately arranged along the second direction; the plurality of first-class wires comprise a plurality of first connecting wires, and each first connecting wire is distributed in a spacing area among the plurality of second electrodes. The utility model further provides an electronic device.

Description

Technical Field

[0001] The present application relates to the field of touch technology, and in particular to a mutual-capacitive touch structure and an electronic device including the touch structure. Background Art

[0002] Touch screens are widely used in terminal devices. Traditional single-layer capacitive touch screen devices consist of multiple electrode blocks arranged on the same layer and traces connecting the electrode blocks. Each electrode block is connected to a trace, and each trace must be connected to an external circuit via a bonding pad. This results in a large number of bonding pads. This routing method also results in a large blind area (ineffective touch area), which affects touch performance. It is suitable for screens no larger than approximately 8 inches. Another touch structure using a diamond-shaped bridge solution does not have blind area restrictions, but when the screen is large, it will cause excessive load on a single sensing channel. Therefore, it is also difficult to support large screens, especially large screens with narrow touch areas. Utility Model Content

[0003] According to a first aspect of the present application, a touch structure is provided. The touch screen has a sensing area and a binding area that are spliced together. The touch structure includes: a substrate having a first surface; an electrode array including a plurality of first channels and a plurality of second channels, wherein the plurality of first channels and the plurality of second channels are located in the sensing area, each of the first channels extends along a first direction, and each of the second channels extends along a second direction. One of the plurality of first channels and the plurality of second channels is used to receive a driving signal, and the other is used to generate a sensing signal. Each of the first channels includes a plurality of first electrodes arranged at intervals along the first direction, and at least one second channel is provided between adjacent first electrodes; an insulating layer is located in the sensing area. A plurality of through holes are provided between the substrate and the electrode array; a plurality of type-one traces electrically connect the plurality of first channels to the binding area; and a plurality of type-two traces are located on the first surface and between the substrate and the insulating layer, the plurality of second traces electrically connect the plurality of second channels to the binding area through at least some of the through holes; each of the second channels includes at least two electrode groups, each of the electrode groups includes a plurality of second electrodes arranged at intervals along the second direction, and the second electrodes of the different electrode groups are alternately arranged along the second direction; the plurality of type-one traces include a plurality of first connecting lines, and each of the first connecting lines is distributed in the interval area between the plurality of second electrodes.

[0004] In at least one embodiment of the present application, the plurality of type-one traces further include a plurality of second connection lines; each of the first connection lines is electrically connected to two adjacently arranged first electrodes in the same first channel, and each of the second connection lines connects one of the first channels to the binding area.

[0005] In at least one embodiment of the present application, the plurality of first connecting lines are provided in the same layer as the electrode array, and the insulating layer is located between the plurality of first connecting lines and the plurality of type-II traces.

[0006] In at least one embodiment of the present application, the plurality of second connecting lines are provided in the same layer as the electrode array, and the insulating layer is located between the plurality of second connecting lines and the plurality of type II traces.

[0007] In at least one embodiment of the present application, the plurality of second connecting lines are distributed on one side of the electrode array.

[0008] In at least one embodiment of the present application, the plurality of second connecting lines are distributed on two opposite sides of the electrode array.

[0009] In at least one embodiment of the present application, the multiple second connecting lines are arranged in the same layer as the multiple Class II routing lines, and the multiple second connecting lines are located between the insulating layer and the substrate; each of the second connecting lines connects a first electrode in one of the first channels to the binding area through a through hole.

[0010] In at least one embodiment of the present application, each of the second channels includes a first electrode group and a second electrode group, the first electrode group and the second electrode group respectively include a plurality of second electrodes arranged at intervals along the second direction, and the second electrodes in the first electrode group and the second electrode group are alternately arranged along the second direction.

[0011] In at least one embodiment of the present application, the plurality of second-category wirings include a plurality of third connecting lines, a plurality of fourth connecting lines, and a plurality of fifth connecting lines; each of the third connecting lines is electrically connected to two adjacently arranged second electrodes in a first electrode group through two of the through holes; each of the fourth connecting lines is electrically connected to two adjacently arranged second electrodes in a second electrode group through two of the through holes; and each of the fifth connecting lines is electrically connected to the second electrode closest to the binding area in a first electrode group or a second electrode group to the binding area through a through hole.

[0012] In at least one embodiment of the present application, the sensing area is rectangular, and the second direction is the long side direction of the sensing area.

[0013] A second aspect of the present application provides an electronic device, comprising: any of the above-mentioned touch structures; a circuit board electrically connected to the binding area of the touch structure; and a touch chip electrically connected to the circuit board, for outputting a driving signal through the circuit board and receiving a sensing signal transmitted back by the circuit board, so as to calculate touch coordinates based on the sensing signal.

[0014] The above-mentioned touch structure and electronic device, by opening a through hole in the insulating layer, allows the second type of wiring to be set on a different layer from the electrode array, reducing the number of wiring set on the same layer as the electrode array, which is beneficial to reducing the touch blind area of the touch structure and improving touch performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic diagram of the stacked structure of the touch structure according to an embodiment of the present application.

[0016] Figure 2 for Figure 1 Planar structural diagram of the touch structure.

[0017] Figure 3 for Figure 2 A partial enlarged view of .

[0018] Figure 4 This is a planar structural diagram of the touch structure in the first modified embodiment of the present application.

[0019] Figure 5 This is a planar structural diagram of the touch structure in the second modified embodiment of the present application.

[0020] Figure 6 This is a planar structural diagram of the touch structure in the third modified embodiment of the present application.

[0021] Figure 7 Schematic diagram of the module structure of the electronic device according to an embodiment of the present application.

[0022] Description of main component symbols

[0023]

[0024]

[0025]

[0026] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a touch structure, which helps to reduce the blind area of the touch structure by setting layered electrodes and wiring; the electrode grouping and wiring connection method is also helpful to reduce the load of a single sensing channel and reduce system power consumption, which is particularly suitable for narrow and long touch screen scenarios.

[0028] See also Figure 1 , the touch structure 100 ( Figure 1The figure (mainly used to illustrate the positional relationship between each layer and not to limit the specific structure of each layer) includes an electrode array 1, an insulating layer 2, multiple Class I traces 3, multiple Class II traces 4, and a substrate 5. The electrode array 1 and the multiple Class I traces 3 are arranged on the same layer, the insulating layer 2 is located between the electrode array 1 and the multiple Class II traces 4, and the multiple Class II traces 4 are located between the insulating layer 2 and the substrate 5.

[0029] The electrode array 1, the plurality of type 1 traces 3 and the plurality of type 2 traces 4 are all made of transparent conductive materials (e.g., indium tin oxide), and the insulating layer 2 is made of transparent insulating material. The plurality of type 1 traces 3 are electrically connected to the electrode array 1, and the plurality of type 2 traces 4 are electrically connected to the electrode array 1 through the through holes ( Figure 1 The electrode array 1 is electrically connected to the plurality of Class I traces 3 and the plurality of Class II traces 4. One of the plurality of Class I traces 3 and the plurality of Class II traces 4 is used to transmit a touch drive signal, and the other is used to transmit a touch sensing signal. The electrode array 1 is used to sense a touch operation based on the touch drive signal and generate the touch sensing signal. The touch sensing signal can be used to calculate the specific touch coordinates of the touch operation.

[0030] See also Figure 2 The substrate 5 has a rectangular first surface 51. The touch structure 100 includes a sensing area 61 and a binding area 62 that are connected to each other. The sensing area 61 is located on the first surface 51. The electrode array 1 is located in the sensing area 61. In this embodiment, the substrate 5 is an insulating and transparent substrate, such as a glass substrate.

[0031] The electrode array 1 includes a plurality of first channels 11 spaced apart from one another and a plurality of second channels 12 spaced apart from one another. Each first channel 11 extends along a first direction L1, and the first channels 11 are sequentially arranged along a second direction. Each second channel 12 extends along a second direction L2, and the second channels 12 are sequentially arranged along the first direction. In this embodiment, the first direction L1 and the second direction L2 are perpendicular to each other. The first direction L1 is the short side of the first surface 51, and the second direction L2 is the long side of the first surface 51.

[0032] Each first channel 11 includes a plurality of first electrodes 111 spaced apart along the first direction L1 , and each first channel 11 includes the same number of first electrodes 111 . Figure 2 Only six first channels 11 are shown for example. Figure 2 In the second direction L2 from top to bottom, the first electrodes 111 in each first channel 11 are marked as X1, X2, X3, X4, X5, and X6, respectively.

[0033] In this embodiment, all the first electrodes 111 may also be considered to be arranged into a plurality of columns, each column extending along the second direction L2 , and each column including a plurality of first electrodes 111 arranged at intervals. Figure 2All first electrodes 111 are arranged in three columns, each column including a first electrode X1, a first electrode X2, a first electrode X3, a first electrode X4, a first electrode X5, and a first electrode X6, which are arranged in sequence from top to bottom. Two second channels 12 are provided between each two adjacent columns of first electrodes 111.

[0034] Each second channel 12 includes a plurality of second electrodes 121 arranged at intervals, and each second channel 12 includes the same number of second electrodes 121 . Figure 2 4 second channels 12 are shown in FIG. 1 , and each second channel 12 includes 6 second electrodes 121. In this embodiment, all second electrodes 121 in each second channel 12 are divided into a first electrode group and a second electrode group. The number of second electrodes 121 in the first electrode group and the second electrode group is the same. Figure 2 Also marked as Y11, Y21, Y31, Y41, the second electrode 121 in the second electrode group is Figure 2 In each second channel 12, the second electrodes Y1 and the second electrodes Y2 are alternately arranged in the second direction L2. Figure 2 As a reference, in the first second channel 12 from left to right, the second electrode Y11 and the second electrode Y12 are arranged alternately; in the second second channel 12, the second electrode Y21 and the second electrode Y22 are arranged alternately; in the third second channel 12, the second electrode Y31 and the second electrode Y32 are arranged alternately; in the fourth second channel 12, the second electrode Y41 and the second electrode Y42 are arranged alternately.

[0035] In this embodiment, each second electrode 121 forms a coupling node with two adjacent first electrodes 111 in an adjacent column of first electrodes 111. Figure 2 In the example, along the second direction L2, the first second electrode Y1 from top to bottom forms three coupling nodes C1 with the first electrode X1 and the second electrode X2 in the adjacent column of first electrodes. Thus, the touch structure 100 forms a densely packed array of coupling nodes using the first electrodes 111 and the second electrodes 121. When a touch operation occurs, the sensed capacitance (i.e., the sensed signal) at the corresponding coupling node changes, and the touch position (touch coordinates) can be calculated by detecting this change in sensed capacitance.

[0036] Please also refer to Figure 2 and Figure 3The electrode array 1 also includes a plurality of first connecting lines 31. In each first channel 11, each two adjacent first electrodes 111 are electrically connected via a first connecting line 31. That is, each first connecting line 31 electrically connects two adjacent first electrodes 111 within the same first channel 11. Therefore, in each first channel 11, each first electrode 111 is sequentially connected in series via the first connecting lines 31. Each first connecting line 31 is located within the sensing area 61 and is distributed in the spacing area between each second electrode 121. That is, the first connecting lines 31 are also formed on the first surface 51 of the substrate 5.

[0037] Please refer to Figure 2 , the electrode array 1 further includes a plurality of second connection lines 32. The number of the second connection lines 32 is the same as the number of the first channels 11. The plurality of second connection lines 32 are connected to the plurality of first channels 11 in a one-to-one correspondence. In this embodiment, all the second connection lines 32 are arranged at one edge of the first surface 51. That is, all the second connection lines 32 are arranged on one side of the electrode array 1. Figure 2 As shown in FIG, all second connection lines 32 are disposed on the right side of the electrode array 1. One end of each second connection line 32 is connected to the rightmost first electrode 111 in one of the first channels 11, and the other end extends to the binding region 62. In this embodiment, each second connection line 32 is formed on the first surface 51 of the substrate 5, and each second connection line 32 is partially located in the sensing region 61 and partially located in the binding region 62.

[0038] The plurality of Class II traces 4 include a plurality of third connecting lines 41. Each third connecting line 41 is electrically connected to the second electrode 121 via a through-hole 21 in the insulating layer 2. In this embodiment, each third connecting line 41 is electrically connected to two adjacent second electrodes Y1 in the same second channel 12 via two through-holes 21 in the insulating layer 2. That is, in each second channel 12, each pair of adjacent second electrodes Y1 is electrically connected via one third connecting line 41 and two through-holes 21. Thus, in each second channel 12, all second electrodes Y1 belonging to the first electrode group are sequentially connected in series via the third connecting lines 41.

[0039] The plurality of Class II traces 4 also include a plurality of fourth connecting lines 42. Each fourth connecting line 42 is electrically connected to the second electrode 121 through a through-hole 21 on the insulating layer 2. In this embodiment, each fourth connecting line 42 is electrically connected to two adjacently arranged second electrodes Y2 in the same second channel 12 through two through-holes 21 on the insulating layer 2. That is, in each second channel 12, each two adjacently arranged second electrodes Y2 are electrically connected through a fourth connecting line 42 and two through-holes 21. In this way, in each second channel 12, all second electrodes Y2 belonging to the second electrode group are connected in series in sequence through the fourth connecting line 42. Similarly, in each second channel 12, all second electrodes Yn belonging to the first electrode group are connected in series in sequence through the third connecting line 41.

[0040] The multiple Class II traces 4 also include multiple fifth connection lines 43. One end of each fifth connection line 43 is electrically connected to a second electrode 121 in a second channel 12 through a through hole 21, and the other end extends to the binding area 62. The number of fifth connection lines 43 connected to each second channel 12 is the same as the number of groups of second electrodes Y in the second channel 12. In each second channel 12, a second electrode Y1 closest to the binding area 62 is connected to the binding area 62 through a fifth connection line 43, so that all second electrodes Y1 in the first electrode group are electrically connected in sequence and then connected together to the binding area 62. In each second channel 12, a second electrode Y2 closest to the binding area 62 is connected to the binding area 62 through a fifth connection line 43, so that all second electrodes Y2 in the second electrode group are electrically connected in sequence and then connected together to the binding area 62.

[0041] Each through-hole 21 on the insulating layer 2 uniquely corresponds to a second electrode 121. The orthographic projection of each second electrode 121 on the insulating layer 2 covers one or two of the through-holes 21. In this embodiment, the orthographic projection of each through-hole 21 on the electrode array 1 is located at the end of the corresponding second electrode 121, so that each third connecting line 41 and each fourth connecting line 42 are connected to the end of the corresponding second electrode 121. In this embodiment, each third connecting line 41 and each fourth connecting line 42 are parallel to the second direction L2. In this way, the length of the third connecting line 41 and the fourth connecting line 42 can be minimized.

[0042] One of the first channel 11 and the second channel 12 is used to receive a drive signal, and the other is used to generate a sensing signal. For example, in this embodiment, all first channels 11 are used to receive drive signals, and all second channels 12 are used to generate sensing signals. Accordingly, the first electrodes 111 in the first channel 11 serve as drive electrodes for receiving drive signals; the second electrodes 121 in the second channel 12 serve as sensing electrodes for generating sensing signals. This sensing signal is used to calculate touch coordinates. Accordingly, the first type of trace 3 is used to transmit the drive signal, and the second type of trace 4 is used to transmit the sensing signal.

[0043] By opening a through hole 21 in the insulating layer 2, the second type of wiring 4 can be arranged on a different layer from the electrode array 1, reducing the number of wirings arranged on the same layer as the electrode array 1, which is beneficial to reducing the touch blind area of the touch structure (the area where the electrodes are formed is the effective touch area, and the area where the wiring is formed is the touch blind area), thereby improving touch performance.

[0044] By dividing the second electrode 121 in each second channel 12 into a first electrode group and a second electrode group, and connecting the first electrode group and the second electrode group to the binding area respectively, each second channel 12 forms two independent sensing channels, thereby reducing the load of a single sensing channel (basically reduced by half).

[0045] See also Figure 4 In the first modified embodiment of the present application, the second connecting lines 32 are not all located on one side of the electrode array 1, but are instead located on opposite left and right sides of the electrode array 1. Because the arrangement area of the second connecting lines 32 corresponds to the border area, arranging the second connecting lines 32 on both sides helps further reduce the border, especially for ultra-narrow border design scenarios. In this modified embodiment, half of the second connecting lines 32 are located on the left side of the electrode array 1, and the other half are located on the right side of the electrode array 1.

[0046] See also Figure 5 In the second variation embodiment of the present application, the second connection line 32 is arranged in the same layer as the plurality of second-class traces 4, that is, the second connection line 32 is located between the insulating layer 2 and the substrate 5. Each second connection line 32 is electrically connected to one of the first electrodes 111 through a through hole 21 in the insulating layer 2. Each second connection line 32 is connected to the first electrode 111 in a different first channel 11. In this second variation embodiment, one end of each second connection line 32 is connected to a first electrode 111 in the middle position of one of the first channels 11, and the other end extends to the binding area 62. In this way, by arranging the second connection line 32 in the same layer as the plurality of second-class traces 4, the second connection line 32 can be arranged in the sensing area 61, and the touch structure 100 does not produce left and right border areas. Therefore, the second variation embodiment of the present application can achieve a borderless design.

[0047] See also Figure 6 In the third modified embodiment of the present application, all second electrodes 121 in each second channel 12 are divided into three electrode groups. Figure 6 As a reference, in the first second channel 12 from left to right, the second electrodes 121 in the three electrode groups are respectively labeled as Y11, Y12 and Y13. Along the second direction L2, the second electrodes Y11, Y12 and Y13 are arranged alternately. In the second second channel 12, the second electrodes 121 in the three electrode groups are respectively labeled as Y21, Y22 and Y23, and the second electrodes Y21, Y22 and Y23 are arranged alternately; in the third second channel 12, the second electrodes 121 in the three electrode groups are respectively labeled as Y31, Y32 and Y33, and the second electrodes Y31, Y32 and Y33 are arranged alternately; in the fourth second channel 12, the second electrodes 121 in the three electrode groups are respectively labeled as Y41, Y42 and Y43, and the second electrodes Y41, Y42 and Y43 are arranged alternately. Correspondingly, the second type of wiring 4 also includes a plurality of sixth connecting lines 44.

[0048] In each second channel 12, every two adjacent second electrodes Y1 are electrically connected to two through-holes 21 via a third connection line 41, every two adjacent second electrodes Y2 are electrically connected to two through-holes 21 via a fourth connection line 42, and every two adjacent second electrodes Y3 are electrically connected to two through-holes 21 via a sixth connection line 44. In each second channel 12, a second electrode Y1, a second electrode Y2, and a second electrode Y3 closest to the binding area 62 are each connected to the binding area 62 via a fifth connection line 43.

[0049] Therefore, in each second channel 12, each second electrode Y1 is connected in series in sequence through the third connecting line 41 and is commonly connected to the binding area 62 through a fifth connecting line 43, each second electrode Y2 is connected in series in sequence through the fourth connecting line 42 and is commonly connected to the binding area 62 through a fifth connecting line 43, and each second electrode Y3 is connected in series in sequence through the sixth connecting line 42 and is commonly connected to the binding area 62 through a fifth connecting line 43.

[0050] That is, in the third modified embodiment, all the second electrodes 121 in each second channel 12 are divided into three independent electrode groups, and each second channel 12 forms three independent sensing channels. Figure 2 The illustrated embodiment further reduces the load of a single sensing channel (to one third).

[0051] In other modified embodiments of the present application, the second electrodes 121 in each second channel 12 may be divided into more groups, which is not limited in the present application.

[0052] The present embodiment also provides Figure 7The electronic device 10 shown includes a touch structure 100, a circuit board 400, and a touch chip 500, as described in any of the aforementioned embodiments. The circuit board 400 is electrically connected to the touch structure 100 and the touch chip 500. The touch structure 100 also includes a plurality of solder pads 7 formed in a bonding area 62. The traces (including the second connection lines 32 and the fifth connection lines 43) extending to the bonding area 62 can be connected to the circuit board 400 (e.g., a flexible circuit board) via the solder pads 7, and further connected to the touch chip 500 via the circuit board 400. The touch chip 500 is configured to output a drive signal (e.g., a square wave signal, a sinusoidal signal, etc.) through the circuit board 400 and receive a sensing signal (capacitance change) transmitted back from the circuit board 400. Based on the sensing signal, the touch signal determines whether a touch is detected and, if so, calculates the specific touch coordinates. In the embodiments of the present application, the electronic device 10 may be, for example, a smart device with display touch functionality, such as a mobile phone, tablet, monitor, or smart home appliance.

[0053] By reducing the load on a single sensing channel, the power consumption of the touch structure 100 can be effectively reduced. In an in-vehicle scenario, the display area and effective touch area of a touch display device are often narrow rectangular areas with a large aspect ratio (for example, a long side dimension of 480mm and a short side dimension of 80mm). The touch structure 100 of the present application divides the second electrodes 121 arranged along the long side of the rectangular area into multiple electrode groups, which can effectively reduce the load on a single sensing channel in that direction, thereby reducing system power consumption. Furthermore, with the increasing use of new energy vehicles, the low-power touch structure 100 of the embodiment of the present application is of great significance in in-vehicle scenarios.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not used to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A touch structure, characterized in that: The touch structure has a sensing area and a binding area spliced together, and the touch structure includes: a substrate having a first surface; an electrode array, comprising a plurality of first channels and a plurality of second channels, the plurality of first channels and the plurality of second channels being located in the sensing area, each of the first channels extending along a first direction, and each of the second channels extending along a second direction, one of the plurality of first channels and the plurality of second channels being configured to receive a driving signal, and the other being configured to generate a sensing signal, each of the first channels comprising a plurality of first electrodes spaced apart along the first direction, with at least one second channel being provided between adjacent first electrodes; an insulating layer, located between the substrate and the electrode array, and having a plurality of through holes; a plurality of type-one traces electrically connecting the plurality of first channels to the bonding area; and a plurality of second-type traces located on the first surface and between the substrate and the insulating layer, the plurality of second-type traces electrically connecting the plurality of second channels to the binding area through at least some of the through-holes; each second channel includes at least two electrode groups, each electrode group includes a plurality of second electrodes spaced apart along the second direction, and the second electrodes of different electrode groups are alternately arranged along the second direction; The plurality of first-type wirings include a plurality of first connecting lines, each of which is distributed in a spaced area between the plurality of second electrodes.

2. The touch structure according to claim 1, wherein: The plurality of first-class routing lines further include a plurality of second connecting lines; Each of the first connection lines is electrically connected to two adjacently arranged first electrodes in the same first channel, and each of the second connection lines connects one of the first channels to the binding area.

3. The touch structure according to claim 2, wherein: The plurality of first connecting lines are arranged in the same layer as the electrode array, and the insulating layer is located between the plurality of first connecting lines and the plurality of second-category wirings.

4. The touch structure according to claim 3, wherein: The plurality of second connecting lines are arranged in the same layer as the electrode array, and the insulating layer is located between the plurality of second connecting lines and the plurality of second-category wirings.

5. The touch structure according to claim 4, wherein: The plurality of second connection lines are distributed on one side of the electrode array.

6. The touch structure according to claim 4, wherein: The plurality of second connection lines are distributed on two opposite sides of the electrode array.

7. The touch structure according to claim 3, wherein: The plurality of second connecting lines are arranged on the same layer as the plurality of type II wirings, and the plurality of second connecting lines are located between the insulating layer and the substrate; Each of the second connecting lines connects a first electrode in one of the first channels to the binding area through one of the through holes.

8. The touch structure according to claim 3, wherein: Each of the second channels includes a first electrode group and a second electrode group. The first electrode group and the second electrode group respectively include a plurality of second electrodes spaced apart along the second direction. The second electrodes in the first electrode group and the second electrode group are alternately arranged along the second direction.

9. The touch structure according to claim 8, wherein: The plurality of second-category wirings include a plurality of third connecting wires, a plurality of fourth connecting wires, and a plurality of fifth connecting wires; Each of the third connecting lines is electrically connected to two adjacently arranged second electrodes in a first electrode group through two of the through holes; Each of the fourth connecting lines is electrically connected to two adjacently arranged second electrodes in a second electrode group through two of the through holes; Each of the fifth connecting lines electrically connects a second electrode in the first electrode group or the second electrode group closest to the binding area to the binding area through a through hole.

10. The touch structure according to claim 8, wherein: The sensing area is rectangular, and the second direction is the long side direction of the sensing area.

11. An electronic device, characterized in that: include: The touch structure according to any one of claims 1 to 10; a circuit board electrically connected to the binding area of the touch structure; as well as The touch chip is electrically connected to the circuit board and is used to output a driving signal through the circuit board and receive a sensing signal sent back by the circuit board, so as to calculate the touch coordinates based on the sensing signal.

Images