TWI552061B - Touch screen apparatus, single-layered mutual-capacitive touch screen thereof and electronic device including thereof - Google Patents

Description

Touch screen device and single layer mutual capacitance touch screen body and electronic device

The present invention relates to the field of electronic device technologies, and in particular, to a touch screen device and a single layer mutual capacitance touch screen body and an electronic device.

With the continuous development of touch screens, capacitive touch screens are more and more widely used in terminal devices. In the existing capacitive touch screen devices, oxidation can be set on the touch screen body. Indium Tin Oxides (ITO) senses the mutual capacitance between the electrodes to achieve touch control of the touch screen device.

In the prior art, a single-layer mutual capacitance or a double-layer mutual capacitance scheme can be adopted in the touch screen body of the touch screen device, and mutual capacitance or sensing nodes are disposed on the touch screen body, and each sensing node is A driving electrode and a receiving electrode are included, and each driving electrode and receiving electrode requires a separate lead wire, and each lead wire requires an interface, that is, a bonding pad (Bonding Pad) to be connected to the external circuit of the touch screen body. How to touch The pattern of mutual capacitance and the wiring of the lead wires on the screen body make the performance improvement of the touch screen device an important issue.

The embodiment of the invention provides a setting pattern of the upper electrode of the single-layer mutual-capacitive touch screen body in the touch screen device, which is beneficial to the performance improvement of the touch screen device.

A first aspect of the present invention provides a single-layer mutual-capacitive touch screen body, comprising: a plurality of sensing channel units arranged in parallel, each sensing channel unit comprising a plurality of first electrodes and a plurality of second electrodes, The plurality of first electrodes are configured to be coupled to the plurality of second electrodes to form a plurality of mutual capacitance sensing nodes; a plurality of first lead wires, wherein the plurality of first electrodes are respectively connected to a single first lead And a plurality of second lead wires, wherein the plurality of second electrodes are respectively connected to a single second lead wire, wherein the first lead wire and the second lead wire connected to the same sensing channel unit are respectively located The opposite sides of the same sensing channel unit; for each of the sensing channel units, the plurality of first electrodes include a first type of electrode and a second type of electrode, and each of the first type of electrodes is respectively associated with a second electrode Coupled into a mutual capacitance sensing node, each of the second type of electrodes is respectively associated with two adjacent second electrodes Coupling into two mutual capacitance sensing nodes, each second electrode is coupled with two adjacent first electrodes into two mutual capacitance sensing nodes; the first electrode is a driving electrode and the second electrode is receiving The electrode, or the first electrode is a receiving electrode and the second electrode is a driving electrode.

A second aspect of the present invention provides a touch screen device, including a single-layer mutual-capacitive touch screen body, and the single-layer mutual-capacitive touch screen body includes: a plurality of sensing channel units arranged in parallel Each sensing channel unit includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes being configured to be coupled with the plurality of second electrodes to form a plurality of mutual capacitance sensing nodes; a lead wire, the plurality of first electrodes are respectively connected to a single first lead wire; and a plurality of second lead wires respectively connected to a single second lead wire, wherein, the same The first lead wire and the second lead wire connected to the sensing channel unit are respectively located on opposite sides of the same sensing channel unit; for each of the sensing channel units, the first electrode includes a first type electrode And a second type of electrode, each of the first type electrodes is coupled to a second electrode to form a mutual capacitance sensing node, and each of the second type electrodes is coupled to two adjacent second electrodes to form two mutual capacitances. Induction section , Each of the two second electrodes and the first electrodes coupled into two adjacent mutual capacitance sensing nodes; The first electrode is a driving electrode and the second electrode is a receiving electrode, or the first electrode is a receiving electrode and the second electrode is a driving electrode.

Embodiments of the present invention provide a touch screen device including a single layer mutual capacitance touch screen body, the touch screen device further including a touch control chip, the touch control chip being used for the first electrode Performing capacitive sensing with the second electrode to obtain touch information, wherein the single-layer mutual-capacitive touch screen body comprises: a plurality of sensing channel units arranged in parallel, each sensing channel unit includes a plurality of first An electrode and a plurality of second electrodes, wherein the plurality of first electrodes are coupled to the plurality of second electrodes to form a plurality of mutual capacitance sensing nodes; and the plurality of parallel arranged sensing channel units are mirrored Symmetrical; a plurality of first lead wires, wherein the plurality of first electrodes are respectively connected to a single first lead wire; and a plurality of second lead wires, wherein the plurality of second electrodes are respectively connected to a single second lead wire The first lead wire and the second lead wire connected to the same sensing channel unit are respectively located on opposite sides of the same sensing channel unit; for each of the sensing channel units, the multiple The first electrode includes a first type electrode and a second type electrode, each of the first type electrodes is coupled with a second electrode to form a mutual capacitance sensing node, and each of the second type electrodes is respectively adjacent to two adjacent The two electrodes are coupled into two mutual capacitance sensing nodes, and each of the second electrodes is coupled to two adjacent first electrodes to form two mutual capacitance sensing nodes; The first electrode is a driving electrode and the second electrode is a receiving electrode, or the first electrode is a receiving electrode and the second electrode is a driving electrode.

A fourth aspect of the embodiments of the present invention provides an electronic device, where the electronic device includes a second aspect of the embodiment of the present invention or a touch screen device provided by a third party.

It can be seen that the single-layer mutual-capacitive touch screen body of the touch screen device of the embodiment includes a plurality of sensing channel units arranged in parallel, wherein: each sensing channel unit includes a plurality of first electrodes and a plurality of a second electrode, each of the first electrodes and each of the second electrodes are respectively connected to a single first lead wire and a second lead wire, and in one sensing channel unit, the first lead wire and the second lead wire are respectively distributed on the sensing channel Two sides of the unit; each of the plurality of first electrodes included in each of the sensing channel units includes a first type of electrode coupled to an adjacent one of the second electrodes to form a mutual capacitance sensing node, and the second type of electrode and the adjacent two The second electrode is coupled into two mutual capacitance sensing nodes; each of the second electrodes is coupled to the adjacent two first electrodes to form two mutual capacitance sensing nodes, such that the row between the first electrode and the adjacent second electrode The cloth can be formed into a unique mutual capacitance sensing node, which plays a good role in balancing the dead zone; and each electrode is respectively led to the bonding pad by a lead wire, so that Less crosstalk. In this embodiment, the setting of the upper electrode of the single-layer mutual-capacitive touch screen body is advantageous for the performance improvement of the touch screen device.

1‧‧‧Single layer mutual capacitance touch screen body

10‧‧‧First electrode

10a‧‧‧first type electrode

10b‧‧‧Second type electrode

100‧‧‧Substrate

101‧‧‧Sensor channel unit

102‧‧‧First lead wire

103‧‧‧Second wiring

11‧‧‧second electrode

110‧‧‧Sensor channel unit layout area

120‧‧‧ junction area

2‧‧‧Single layer mutual capacitance touch screen body

1a‧‧‧ pins

2b‧‧‧ pins

20‧‧‧First electrode

201‧‧‧Sensor channel unit

202‧‧‧First lead wire

203‧‧‧Second wiring

204‧‧‧Touch Control Wafer

21‧‧‧second electrode

30‧‧‧First electrode

31‧‧‧second electrode

[Fig. 1a] is a single-layer mutual capacitance touch screen provided by the first embodiment of the present invention. Schematic diagram of the setting pattern of mutual capacitance on the body.

[Fig. 1b] is a schematic structural view of two electrodes coupled to each other on a single-layer mutual-capacitive touch screen body according to the first embodiment of the present invention.

[Fig. 1c] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen body according to a first embodiment of the present invention.

[Fig. 2] is a schematic structural view of a touch screen device according to a second embodiment of the present invention.

[Fig. 3] is a schematic diagram showing a setting pattern of mutual capacitance in a sensing channel unit of a single-layer mutual-capacitive touch screen in another touch screen device according to a second embodiment of the present invention.

[Fig. 4] is a schematic diagram showing a setting pattern of mutual capacitance in a sensing channel unit on a single-layer mutual-capacitive touch screen in another touch screen device according to a second embodiment of the present invention.

[Fig. 5] is a schematic diagram showing a setting pattern of mutual capacitance in a sensing channel unit of a single-layer mutual-capacitive touch screen in another touch screen device according to a second embodiment of the present invention.

[Fig. 6] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device according to the third embodiment of the present invention.

[FIG. 7] FIG. 7 is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device according to the third embodiment of the present invention.

[Fig. 8] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device according to the third embodiment of the present invention.

[Fig. 9a] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device according to the third embodiment of the present invention.

[Fig. 9b] is another touch screen device provided in the third embodiment of the present invention. A schematic diagram of a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen.

[Fig. 10] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device provided in an application embodiment of the present invention.

[Fig. 11] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device provided in an application embodiment of the present invention.

[12] is a schematic diagram of a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device provided in an application embodiment of the present invention.

[Fig. 13] is a schematic diagram showing a setting pattern of mutual capacitance on a single-layer mutual-capacitive touch screen in another touch screen device provided in an application embodiment of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the invention.

The description of the invention and the scope of the patent application and the terms "first", "second", "third", "fourth", etc. (if present) in the above figures are used to distinguish similar items, and are not necessarily used for Describe a specific order or order. It should be understood that the materials so used are interchangeable where appropriate. In addition, the terms "comprising" and "having", and any <RTI ID=0.0> </ RTI> <RTI ID=0.0> </ RTI> </ RTI> are intended to include a non-exclusive inclusion, for example, a process comprising a series of steps or units. The method, system, product, or device is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not explicitly listed or are inherent to such processes, methods, products, or devices.

Further, the words "same order of position" and "same line order" as referred to in the following embodiments are all determined in the same direction.

First embodiment of the present invention

A single-layer mutual-capacitive touch screen body 1 is provided for use in a touch screen device for carrying a sensing electrode and a metal trace, and is used to sense a user's touch. The touch screen device is applied to an electronic device. The electronic device is, for example, a mobile phone, a tablet computer or the like. Referring to FIG. 1a, the single-layer mutual-capacitive touch screen body 1 includes a substrate 100, and the substrate 100 is divided into a sensing channel unit routing area 110 and a bonding area (Bonding Area) located on at least one side of the sensing channel unit routing area 110. 120. The sensing channel unit routing area 110 is provided with a plurality of sensing channel units 101 arranged in parallel, a plurality of first lead wires 102, and a plurality of second lead wires 103. The plurality of first lead wires 102 and the plurality of second lead wires 103 are connected to the bonding region 120; each sensing channel unit 101 includes a plurality of first electrodes 10 and a plurality of second electrodes 11, a plurality of first The electrode 10 is for coupling with a plurality of second electrodes 11 to form a plurality of mutual capacitance sensing nodes. Wherein, for each row of the sensing channel unit 101, preferably, the plurality of first electrodes 10 are arranged in a row, and the plurality of second electrodes 11 are also arranged in a row; The plurality of first electrodes 10 are respectively connected to a single first lead wire 102, and the plurality of second electrodes 11 are respectively connected to a single second lead wire 103, and the first lead wires 102 and the same connected to the same sensing channel unit 101 The two lead wires 103 are respectively located on opposite sides of the same sensing channel unit 101. In this way, the space of the single-layer mutual-capacitive touch screen body 1 can be reasonably utilized, and the lead wires can be prevented from passing through the mutual capacitance sensing node, which plays a good role in balancing the dead zone and improving the touch precision, and the first electrode 10 and the second electrode 11 does not need a corner, so the symmetry is better; for each of the sensing channel units 101, the plurality of first electrodes 10 include a first type of electrode 10a and a second type of electrode 10b, and each of the first type of electrodes 10a and one of the first The two electrodes 11 are coupled into a mutual capacitance sensing node, and each of the second electrodes 10b is coupled to two adjacent second electrodes 11 to form two mutual capacitance sensing nodes, and each second electrode 11 and two respectively The adjacent first electrodes 10 are coupled into two mutual capacitance sensing nodes. In a specific embodiment, each of the plurality of first electrodes 10 includes two first type electrodes 10a in each of the sensing channel units 101, and the two first type electrodes 10a are respectively located in the plurality of first electrodes 10. The second electrode 10b is located between the two first type electrodes 10a; it should be noted that the first electrode 10 is a driving electrode and the second electrode 11 is a receiving electrode, or the first electrode 10 It is a receiving electrode and the second electrode 11 is a driving electrode. The area of the first type electrode 10a in the first electrode 10 is smaller than the area of the second type electrode 10b, and the area of each second electrode 11 is the same, which is larger than the area of the first type electrode 10a and is the second type electrode. A positive integer multiple of the area. In this embodiment, the area and the area of each of the second electrodes 11 A second type of electrode 10b has the same area. Further, for each sensing channel unit, the sum of the areas of the plurality of first electrodes 10 is equal to the sum of the areas of the plurality of second electrodes 11.

Further, in order to achieve a better effect of the coupling between the two first electrodes 10 and the second electrode 11, the first electrode 10 and the second electrode 11 may be arranged in a "work" shape; Referring to FIG. 1b, the comb-shaped branch of the first electrode 10 and the comb-like branch of the second electrode 11 are cross-coupled to form a mutual capacitance sensing node, so that each mutual capacitance sensing in the sensing channel unit 101 The node is formed by the cross coupling of the first electrode 10 and the second electrode 11.

It should be further noted that the bonding region 120 on the substrate 100 included in the single-layer mutual-capacitive touch screen body 1 may include bonding pads (not shown), and each of the first routing wires 102 and the second routing wires 103 respectively Connect to a separate bond pad so that each electrode is individually routed, making crosstalk less.

In the actual application process, if the arrangement of the first electrode 10 and the second electrode 11 is in a mirror image arrangement manner, that is, the plurality of parallel-disposed sensing channel units 101 are mirror-symmetrical, so that the upper surface of the touch screen body 1 is The pattern is symmetrical at the center of the left and right, which is very helpful for achieving the consistency of the edges.

For two adjacent sensing channel units 101 that are mirror-symmetrical: one row of second electrodes 11 is located between the two rows of first electrodes 10, and the second electrode 11 of each sensing channel unit 101 away from the end of the bonding pad The connected second lead wires 103 are connected together and connected to the same bonding pad, the other first lead wires 102 and the second Lead wires 103 are respectively connected to a single bonding pad; or a row of first electrodes 10 is located between the two rows of second electrodes 11 and is connected to the first electrode 10 of each sensing channel unit 101 away from the end of the bonding pad. The first lead wires 102 are connected together and connected to the same bonding pad, and the other first lead wires 102 and the second lead wires 103 are respectively connected to a single bonding pad, so that the connection to the bonding pad can be reduced. The number of wires.

For example, in FIG. 1c, the lead wires are led upward, and the first lead wires 102 connected to the lowermost two first electrodes 10 of the adjacent two sensing channel units 101 may be connected together and connected to the land 120.

The lead wires of the above electrodes are made of indium tin oxide (ITO) or a lead wire made of a transparent and electrically conductive material such as nano silver or graphene. In addition, each of the electrodes (including the first electrode and the second electrode) is an electrode made of a transparent conductive material such as indium tin oxide or graphene. The shapes of the first electrode and the second electrode are square, elongated, triangular, etc., and the edges may also have serrations.

Further, the structure of the touch screen body 1 may be a glass & glass (GG) structure; a glass & film (GF) structure, or a single layer glass structure (OGS); or a touch screen body and display The integrated structure of the screen, that is, the touch screen body 1 is located in a display, such as a liquid crystal display (LCD), and the like, such as an in-line structure such as ON-CELL or IN-CELL.

Second embodiment of the invention

Providing a touch screen device (not shown), which can be an electronic device, such as a mobile phone, a Global Positioning System (GPS) device, a palm-sized computer, etc. . The touch screen device includes a cover, a touch screen body 1 and a display, and is stacked from the outside to the inside. It can be understood that the touch screen device can also include other structures, such as a touch screen device. Operating a touch control wafer or the like. The cover is exposed to the user outside the touch screen device and is mainly used to protect devices such as touch screen devices. The touch screen body 1 is mainly used to carry the sensing electrodes (the first electrode 10 and the second electrode 11) and the metal traces. When the user touches the exposed cover, the touch is stacked under the cover. The mutual capacitance between the sensing electrodes on the screen body 1 is changed, and the touch control chip included in the touch screen device detects the change of the mutual capacitance to determine the touch operation of the touch screen device by the user. The one described in this embodiment is mainly a single-layer mutual-capacitive touch screen body 1; the display is mainly used to display a picture.

Referring to FIG. 2, the structure of the single-layer mutual-capacitive touch screen body 2 in the touch screen device is similar to that of the single-layer mutual-capacitive touch screen body 1 in the first embodiment. The touch screen wafer 204 is further included in the touch screen device, and the touch control chip 204 is connected to the first electrode 20 and the second electrode 21 for capacitive sensing. Specifically, the lead wires of the respective electrodes are connected to the touch control chip 204 outside the single-layer mutual-capacitive touch screen body 2 through a flexible circuit board (FPC) through the bonding pad, and the touch control chip 204 can be set to the flexible circuit board. In a specific embodiment, the lead wires connected to the plurality of electrodes may be connected together on the FPC and then connected to one pin of the touch control chip 204, so that the pins of the touch control chip 204 can be reduced, and the touch can be reduced. control Wafer 204 cost. In other embodiments, the FPC may be omitted, and the touch control chip 204 is disposed on the single-layer mutual-capacitive touch screen body 2.

In FIG. 2, in each of the sensing channel units 201, the plurality of second electrodes 21 are divided into at least two electrode groups, each electrode group includes at least one second electrode 21, and the second electrode 21 in the same electrode group is not Adjacent, the second electrode 21 in the same electrode group is connected to the same pin of the touch control wafer 204 through the second lead wire 203, and the second electrode 21 in the different electrode group is connected to different pins of the touch control chip 204; The plurality of first electrodes 20 are respectively connected to different pins of the touch control wafer 204 through the first lead wires 202. In Fig. 2, only one of the sensing channel units 201 is shown. All of the second electrodes 21 of one electrode group are connected to a point on the FPC through the respective second lead wires 203, and then connected to the touch control chip 204. The pin 2b is drawn; and in each of the sensing channel units 201, the first electrodes 20 in the same position order are connected to the same pin 1a of the touch control chip 204 through the respective first lead wires 202, and the touch type The connections between the other electrodes on the screen body 2 and the touch control wafer 204 are similar and are not shown.

Alternatively, in other embodiments, in each of the sensing channel units 201, the plurality of first electrodes 20 are divided into a plurality of electrode groups, each electrode group includes at least one first electrode 20, and the first of the same electrode group The electrodes 20 are non-adjacent, and the first electrodes 20 in the same electrode group are connected to the same pin of the touch control chip 204 after being connected through the bonding pads through the first lead wires 202 on the flexible circuit board. The first electrode 20 in the electrode group is connected to a different pin of the touch control wafer 204; and the plurality of second electrodes 21 are respectively connected to different pins of the touch control wafer 204 through the second lead wire 203.

It should be noted that when the plurality of second electrodes 21 are divided into at least two electrode groups, the number of the second electrodes 21 in each electrode group is the same, or when the plurality of first electrodes 20 are divided into at least two electrode groups. The number of first electrodes 20 in each electrode group is not the same.

It can be understood that, in a specific embodiment, the arrangement between the first electrode 20 and the second electrode 21 in each of the sensing channel units and the touch control chip 204 may include, but is not limited to, the following methods:

(1) Referring to FIG. 2, the touch screen body 2 includes n/2 sensing channel units, the n is an even number greater than or equal to 2, and the number of the first electrodes 20 included in each sensing channel unit 201 is m. Is a natural number greater than or equal to 3. And in each of the sensing channel units 201, the second electrode 21 is divided into two electrode groups, that is, one Y1 electrode group and one Y2 electrode group, and the second electrodes 21 between the two electrode groups are spaced apart, and the two electrode groups are separated. The number of the second electrodes 21 included is the same. In the embodiment, the first electrode 20 is an X electrode, and the second electrode 21 is a Y electrode.

In the embodiment of the present invention, each of the sensing channel units is coupled to the adjacent one of the second electrodes 21 (for example, coupled to the upper half of the second electrode 21). Forming a mutual capacitance sensing node; for the second electrode of the first electrode 20, coupling with two adjacent second electrodes, such as the upper half of the second electrode and the lower of the second electrode 21 The half portion is coupled to form a mutual capacitance sensing node, and the lower half of the second type electrode is coupled with the upper half of the other second electrode 21 to form another mutual capacitance sensing node. Here, the first type of electrode may be a square of 6.5 mm * 6.5 mm, of course, it may be any other shape such as a long strip, a triangle, etc., and the edge may be serrated, and the second type of electrode may be twice the area of the first type of electrode, etc. .

In this embodiment, in the entire sensing array, the number of the first electrodes 20 is m*n/2, and each of the first electrodes 20 is connected to the bonding pads of the bonding regions through the first routing wires 202, and has a total of m*n. /2 first lead wires 202; the number of second electrodes 21 is (m-1)*n/2, and each second electrode 21 is connected to the bonding pads of the land by the second lead wires 203, common (m -1) *n/2 second lead wires 103. Therefore, the number of lead wires required for the sensing array of the present embodiment is m*n/2+(m-1)*n/2=(2mn-n)/2, and finally (m-1)*n can be formed. A mutual capacitance sensing node.

In addition, in the two electrode groups of the embodiment, the second lead wires 203 of the second electrode 21 (ie, all Y1/Y2 electrodes) in the same electrode group are connected together on the flexible circuit board and then connected to the touch control chip. One pin of 204; and between a column of first electrodes 20 in each of the sensing channel units, the first electrode 20 in the same positional order is connected to the same pin of the touch control wafer 204 through the first lead wire 202. In this way, the entire sensing array can be connected to the m+n pins of the touch control chip, which can reduce the pins of the touch control chip and reduce the cost of the wafer. In addition, the screen space can be reasonably utilized, and the lead wires are evenly distributed to both sides of each sensing channel unit, so as to avoid passing through the mutual capacitance sensing node, which plays a good role in balancing the dead zone and improving the touch precision.

(2) Referring to FIG. 3, the touch control wafer is not shown in FIG. 3, but the connection between the touch control wafer and each of the lead wires is similar to the connection in FIG. 2 described above, including n/ in the sense array. 2 sensing channel units, the n is an even number greater than or equal to 2, and the number m of the second electrodes 21 included in each sensing channel unit is a natural number greater than or equal to 2. And in each of the sensing channel units: a column of the plurality of first electrodes 20 is divided into two electric The pole group, that is, one Y1 electrode group, and one Y2 electrode group, the first electrodes 20 between the two electrode groups are spaced apart. In this embodiment, the first electrode 20 is a Y electrode, and the second electrode 21 is an X electrode.

In this case, in the entire sensing array, the number of the second electrodes 21 is m*n/2, and each of the second electrodes 21 is connected to the bonding pads of the bonding regions through the second wiring wires 203, in common m*n /2 second lead wires 203; the number of the first electrodes 20 is (m+1)*n/2, and each of the first electrodes 20 is connected to the bonding pads of the land by the first lead wires 202, common (m +1)*n/2 first lead wires 202. Therefore, the number of lead wires required for the sensing array of this embodiment is m*n/2+(m+1)*n/2=(2mn+n)/2, and finally, m*n mutual capacitance sensing nodes can be formed. .

And in the two electrode groups, the first lead wires 202 of the first electrode 20 (such as all Y1/Y2 electrodes) in the same electrode group are connected together on the flexible circuit board and then connected to one pin of the touch control chip 204. And between the second electrode 21 of each column of each sensing channel unit, the second electrode 21 in the same positional order is connected to the same pin of the touch control chip through the second lead wire 203, so that the entire sensing array can be connected to the touch Control the m+n pins of the wafer.

(3) Referring to FIG. 4, the touch control wafer is not shown in FIG. 4, but the connection between the touch control wafer and each of the lead wires is similar to the connection in FIG. 2 described above, including n/ in the sensing array. 3 sensing channel units, the n is a natural number greater than or equal to 3, and is an integer multiple of 3, and the number m of the first electrodes 20 included in each sensing channel unit is a natural number greater than or equal to 4. And in each of the sensing channel units: one column of the second electrode 21 is divided into three electrode groups, that is, one Y1 electrode group, one Y2 electrode group and one Y3 electrode group, each The second electrodes in the electrode set are non-adjacent. In the embodiment, the first electrode 20 is an X electrode, and the second electrode 21 is a Y electrode.

In this embodiment, in the entire sensing array, the number of the first electrodes 20 is m*n/3, and each of the first electrodes 20 is connected to the bonding pads of the bonding regions through the first routing wires 202, and has a total of m*n. /3 first lead wires 202; the number of the second electrodes 21 is (m-1)*n/3, and each of the second electrodes 21 is connected to the bonding pads of the land by the second lead wires 203, common (m -1) *n/3 second lead wires 203. Therefore, the number of lead wires required for the sensing array of this embodiment is m*n/3+(m-1)*n/3=(2mn-n)/3, and finally 2(m-1)*n can be formed. /3 mutual capacitance sensing nodes.

And in the three electrode groups, the second lead wires 203 of the second electrode 21 (such as all Y1/Y2/Y3 electrodes) in the same electrode group are connected together on the flexible circuit board and then connected to one of the touch control wafers. And a first electrode 20 in the same position order between each row of the first electrodes 20 in each of the sensing channel units is connected to the same pin of the touch control wafer through the first lead wire 202, so that the entire sensing array can be connected to Touch the m+n pins of the control chip.

(4) Referring to FIG. 5, the touch control wafer is not shown in FIG. 5, but the connection between the touch control wafer and each of the lead wires is similar to the connection in FIG. 2 described above, including n/ in the sense array. 4 sensing channel units, the n is a natural number greater than or equal to 4, and is an integer multiple of 4, and the number m of the first electrodes 20 included in each sensing channel unit is a natural number greater than or equal to 5, in the embodiment The first electrode 20 is an X electrode, and the second electrode 21 is a Y electrode. And in each of the sensing channel units: one column of the plurality of second electrodes 21 is divided into four electrodes The group, that is, one Y1 electrode group, one Y2 electrode group, one Y3 electrode group and one Y4 electrode group, and the second electrode 21 in the same electrode group are not adjacent.

In this embodiment, in the entire sensing array, the number of the first electrodes 20 is m*n/4, and each of the first electrodes 20 is connected to the bonding pads of the bonding regions through the first routing wires 202, and has a total of m*n. /4 first lead wires 202; the number of second electrodes 21 is (m-1)*n/4, and each second electrode 21 is connected to the bonding pads of the land by the second lead wires 203, common (m -1) *n/4 second lead wires 203. Therefore, the number of lead wires required for the sensing array of this embodiment is m*n/4+(m-1)*n/4=(2mn-n)/4, and finally (m-1)*n/ can be formed. 2 mutual capacitance sensing nodes.

And in the four electrode groups, the second lead wires 203 of the second electrode 21 (such as all Y1/Y2/Y3/Y4 electrodes) in the same electrode group are connected together on the flexible circuit board and then connected to the touch control chip. a pin; and a column of first electrodes 20 in each of the sensing channel units, the first electrode 20 in the same positional order is connected to the same pin of the touch control chip through the first lead wire 202, so that the entire sensing array can Connect to the m+n pins of the touch control chip.

(5) The arrangement of the first electrode 20 and the second electrode 21 in each of the sensing channel units may be a combination of the arrangement of the first electrode 20 and the second electrode 21 in the above (1) to (4).

It should be noted that, in addition to the above several types, the arrangement between the first electrode 20 and the second electrode 21 in each sensing channel unit may have other arrangements, such as In each of the sensing channel units, the plurality of first electrodes 20 or the plurality of second electrodes 21 are divided into a maximum of four or more electrode groups or the like.

Third embodiment of the present invention

Providing a touch screen device, comprising a single-layer mutual-capacitive touch screen body, the structure of the single-layer mutual-capacitive touch screen body in the touch screen device and the single-layer mutual capacitance contact in the first embodiment The structure of the control screen body is similar, and the plurality of parallel-disposed sensing channel units on the single-layer mutual-capacitive touch screen body are mirror-symmetrical, which are not described herein; and in the touch screen device It is desirable to include a touch control wafer that is coupled to the first electrode 30 and the second electrode 31 and that capacitively senses the first electrode 30 and the second electrode 31. Specifically, each lead wire of each electrode is connected to a touch control chip of a single-layer mutual-capacitive touch screen through a flexible circuit board (FPC) through a bonding pad, and the touch control chip can be disposed on a flexible circuit board. In a specific embodiment, the lead wires connected to the plurality of electrodes may be connected together on the flexible circuit board and then connected to one pin of the touch control chip, thereby reducing the pin of the touch control chip and reducing the cost of the chip.

The connection between each electrode on the single-layer mutual-capacitive touch screen body and the touch control chip may include, but is not limited to, the following methods:

(1) Referring to Fig. 6 (the wiring and touch control wafer are not shown in Fig. 6, the connection between them is similar to that in Fig. 2 above), in one case: the two are mirror-symmetrically arranged. The adjacent two sensing channel units are divided into one group (ie, one area in FIG. 6), and two rows of second electrodes 31 of each group of sensing channel units are located The second electrode 31 between the two rows of first electrodes 30 and in the same positional order is connected to the same pin of the touch control wafer by the second lead wire; for the two rows of the first electrode 30 of each group of sensing channel cells, The first electrode 30 of the same positional order is connected to a different pin of the touch control wafer by a first lead wire.

For two adjacent sets of sensing channel units, two rows of first electrodes 30 located between the second electrodes 31 are adjacent, and for the adjacent two rows of first electrodes 30, the first electrodes 30 in the same position order pass the first lead The wires are connected to the same pin of the touch control chip. In other specific embodiments, the first electrode 30 in the phase position order can be connected to different pins of the touch control chip through the first lead wires; The channel elements, the second electrodes 31 in the different groups, are connected to different pins of the touch control wafer by the second lead wires.

Further, for two sets of sensing channel units spaced by a set of sensing channel elements, the second electrode 31 in the same positional order is connected to the same pin of the touch control wafer via the second lead wire. The opposite side edges of the plurality of sensing channel units are two rows of first electrodes 30, wherein for the two rows of first electrodes 30, the first electrodes 30 in the same position order are connected to the same one of the touch control wafers through the first lead wires Pin.

Specifically, in this embodiment, the second electrode 31 included in the entire sensing array is specifically a receiving electrode (RX), the first electrode 30 is a driving electrode (TX), and the entire sensing array can be connected to the touch control chip. +n pins, where m is 22 and n is 12, which can form 264 mutual capacitance sensing nodes. 2*n/2=12 sensing channel units are included in the entire sensing array, and each sensing channel unit includes a column of m/2=11 receiving electrodes, and One column of the plurality of driving electrodes includes two sets of driving electrodes, that is, one TX1 electrode group, and one TX2 electrode group.

In this embodiment, since the receiving electrodes and the driving electrodes in the plurality of columns are connected to the same pin of the touch control chip in the entire sensing array, the pins connected to the touch control wafer can be reduced, and the touch control can be fully utilized. The number of drive and receive channels on the wafer makes the configuration more flexible, making it easier to accurately identify touch locations, improving linearity and touch accuracy.

(2) In another case: two adjacent two sensing channel units arranged in mirror symmetry are divided into one group, and one row of first electrodes of each group of sensing channel units is located between two rows of second electrodes and at the same position The first electrode of the sequence is connected to the same pin of the touch control wafer through the first lead wire; for the two rows of the second electrode of each set of sensing channel unit, the second electrode in the same position order is connected to the touch through the second lead wire Control different pins of the wafer.

For two adjacent sets of sensing channel units, two rows of second electrodes between the first electrodes are adjacent, and for two adjacent rows of second electrodes, the second electrodes in the same positional order are connected to the touch by the second lead wires Control the same pin of the wafer, or connect to different pins of the touch control chip through the second lead wire; for two adjacent sensing channel units, two rows of the first electrodes in different groups are in the same position order first The electrodes are connected to different pins of the touch control wafer by a first lead wire.

Further, for two sets of sensing channel units separated by a group of sensing channel units, the first electrodes in the same positional order are connected to the same pin of the touch control wafer through the first lead wires; and the plurality of sensing channel units The opposite side edges are two rows of second electrodes, wherein for the two rows of second electrodes, the second electrodes in the same positional order are connected to the same pin of the touch control wafer by the second lead wires.

(3) Refer to Fig. 7 (the wiring and touch control wafer are not shown in Fig. 7, and the connection between them is similar to that in Fig. 2 above). In another case: the two are mirror-symmetrically arranged. The adjacent two sensing channel units are divided into one group (ie, one area in FIG. 7), and for the two rows of second electrodes of each group of sensing channel units, the second electrodes in the same position order are connected to the second lead wires through the second lead wires The different pins of the touch control wafer, or/and, for the two rows of first electrodes of each set of sense channel units, the first electrodes in the same positional order are connected to different pins of the touch control wafer by the first lead wires.

Wherein, two rows of first electrodes in each group of sensing channel units are defined as a first row of first electrodes and a second row of first electrodes, and two rows of second electrodes are respectively a first row of second electrodes and a second row of second electrodes Electrode, for two rows of the first two rows of adjacent two sensing channel units, the second electrode in the same order is connected to the same pin of the touch control wafer via the second lead wire, or/and, for adjacent Two rows of the second row of the sensing channel unit, the second electrode, and the second electrode in the same order are connected to the same pin of the touch control wafer through the second lead wire. Wherein, for each group of sensing channel units, the first row of second electrodes and the second row of second electrodes may be located between the first row of first electrodes and the second row of first electrodes, and the first row of second The order of the electrodes in each group of sensing channel units may be the same, and the order of the second row of second electrodes in each group of sensing channel units may be the same.

Further, for the adjacent two sets of sensing channel units, the second row of the first row of the sensing channel units is adjacent to and located between the second electrodes, and the first electrode of the second row of the adjacent two rows is in the The first electrode of the same order is connected to the same pin of the touch control wafer through the first lead wire. And the opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein, for the two rows of first electrodes, the first electrodes in the same position order are connected to the same pin of the touch control chip through the first lead wires Or the opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein for the two rows of first electrodes, the first electrodes in the same position order are connected to different pins of the touch control wafer through the first lead wires .

In a specific embodiment, the second electrode included in the entire sensing array is specifically a receiving electrode (RX), the first electrode is a driving electrode (TX), and the entire sensing array can be connected to the m+n of the touch control chip. The pin, where m is 22 and n is 12, can form 264 mutual capacitance sensing nodes. And including 2*n/2=12 sensing channel units in the entire sensing array, each sensing channel unit includes a column of m/2=11 receiving electrodes; and dividing the driving electrodes into two electrode groups in one column , that is, a TX1 electrode group, and a TX2 electrode group.

In this embodiment, since the receiving electrodes and the driving electrodes in the plurality of columns are connected to the same pin of the touch control chip in the entire sensing array, the pins connected to the touch control wafer can be reduced, and the touch control can be fully utilized. Drive and receive channels on the wafer The number makes the configuration more flexible, making it easier to accurately identify the touch location, improving linearity and touch accuracy.

(4) Referring to Fig. 8 (the wiring and touch control wafer are not shown in Fig. 8, the connection between them is similar to that in Fig. 2 above), and in another case: included in the entire sensing array. The second electrode is specifically an X electrode, and the first electrode is a Y electrode, and the entire sensing array can be connected to m+n pins of the touch control chip, wherein m is 38, n is 14, and the entire sensing array includes 2*(n). -2)/2=12 sensing channel units, which can form 456 mutual capacitance sensing nodes. Each sensing channel unit includes a column of m/2=19 X electrodes; among a plurality of Y electrodes, it is divided into two electrode groups, namely, a Y1 electrode group and a Y2 electrode group.

In this case, the connection between each electrode and the touch control wafer in the single-layer mutual-capacitive touch screen body in the touch screen device shown in FIG. 6 is similar, except that in this embodiment, The opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein for the two rows of first electrodes, the first electrodes in the same positional order are connected to the same connection of the touch control wafer through the first lead wires The foot; and also does not specifically define whether the first electrode is a driving electrode or a receiving electrode.

In this embodiment, since the receiving electrodes and the driving electrodes in the plurality of columns are connected to the same pin of the touch control chip in the entire sensing array, the pins connected to the touch control wafer can be reduced, and the touch control can be fully utilized. The number of drive and receive channels on the wafer makes the configuration more flexible, making it easier to accurately identify touch locations, improving linearity and touch accuracy.

(5) Referring to Figures 9a and 9b (the wiring and touch control wafers are not shown in Figures 9a and 9b, the connections between them are similar to those in Figure 2 above), in another case Bottom: The plurality of sensing channel units are divided into two parts, the left half and the right half, according to the whole area. The left half and the right half respectively include the same number of adjacent sensing channel units, for the left The second electrode of each row in each of the sensing channel units in the half portion, the second electrode in the same positional order is connected to the same pin of the touch control wafer via the second lead wire, or/and, for the right half The second electrode of each row in each of the sensing channel units, the second electrode in the same positional order is connected to the same pin of the touch control wafer via the second lead wire.

And for each row of the first electrodes in each of the sensing channel units in the left half, the first electrodes in the same position order are connected to different pins of the touch control wafer through the first lead wires, or/and, for the right half The first electrode of each row in each of the sensing channel units in the portion, the first electrode in the same positional order is connected to a different pin of the touch control wafer through the first routing wire.

For each row of the second electrode in the different portions, the second electrode in the same positional order is connected to the different pins of the touch control wafer by the second lead wire, and further, for the first electrode of each row in the different portion, the row order The first electrodes that are identical and in the same positional order are connected to different pins of the touch control wafer by the first lead wires.

Or, in another case, for each row of the first electrode in different portions, the first electrode in the same positional order is connected to the touch control chip through the first lead wire The different pins of the different positions, and for the first electrode in the different portions, the first electrode in the mirror symmetrical position order is connected to the same pin of the touch control wafer through the first lead wire.

In a specific embodiment, referring to FIGS. 9a and 9b, the second electrode included in the entire sensing array is specifically an X electrode, the first electrode is a Y electrode, and the entire sensing array can be connected to the touch control chip m+ n pins, where m is 38 and n is 12. The entire sensing array includes 2*n/2=12 sensing channel units, which can form 456 mutual capacitance sensing nodes. Each sensing channel unit includes a column of m/2=19 X electrodes; in one column of Y electrodes, it is divided into two electrode groups, namely, a Y1 electrode group and a Y2 electrode group.

And in the two specific implementation manners of the 9th and 9th diagrams, the connection between the electrodes on the single-layer mutual-capacitive touch screen body and the touch control chip is similar, and the 12 sensing channel units are divided into two parts. Inductive channel unit, each part comprising 6 sensing channel units, except that in the embodiment of FIG. 9a, for the first electrode in different parts, the first electrode in the same position order passes through the first lead wire Connected to different pins of the touch control wafer, and for the first electrode in the different portions, the first electrode in the mirror symmetrical position order is connected to the different pins of the touch control wafer through the second lead wire; implementation of Figure 9b In the example, for the first electrode in the different portions, the first electrodes in the same positional order are connected to different pins of the touch control wafer through the first lead wires.

In this embodiment, since the receiving electrodes and the driving electrodes in the plurality of columns are connected to the same pin of the touch control chip in the entire sensing array, the pins connected to the touch control wafer can be reduced, and the touch control can be fully utilized. Drive and receive channels on the wafer The number makes the configuration more flexible, making it easier to accurately identify the touch location, improving linearity and touch accuracy.

The touch screen device provided by the embodiment of the present invention is described in the following several application examples:

Fourth embodiment of the present invention

Referring to FIG. 10, the entire sensing array of the single-layer mutual-capacitive touch screen body includes a first electrode specifically an X electrode, a second electrode being a Y electrode, and the entire sensing array can be connected to the touch control chip. +n pins, where m is 20 and n is 12, and the entire sensing array includes n/2=6 sensing channel elements.

In each of the sensing channel units: among the 20 X electrodes in a row, the X electrodes at both ends, that is, X1 and X20 belong to the first type of electrodes, and the remaining X electrodes, such as X2 to X19, are the second type of electrodes; For the two electrode sets.

The number of X electrodes is m*n/2=20*12/2=120, and each X electrode is connected to the junction by a lead wire, and there are 120 lead wires; the number of Y electrodes is (m-1)*n /2=(20-1)*12/2=114, each Y electrode is connected to the junction area by a lead wire, and there are 114 lead wires; the number of mutual capacitance sensing nodes thus formed is (m-1)*n = (20-1) * 12 = 228, mutual capacitance 001 ~ 228 as shown in Figure 9.

The total number of leads of the sensing array is (2mn-n)/2=(2*20*12-12)*/2=234. In practical applications, the two lowermost adjacent wires are The lead wires of the pole X20 are connected together and connected to a bonding pad of the land, such that the total number of leads of the sensing array is 234-3=231.

Fifth embodiment of the present invention

Referring to FIG. 11, the entire sensing array of the single-layer mutual-capacitive touch screen body includes a second electrode specifically as an X electrode, a first electrode being a Y electrode, and the entire sensing array can be connected to the touch control chip. +n pins, where m is 19 and n is 12, and the entire sensing array includes n/2=6 sensing channel elements.

In each sensing channel unit: among the 19 X electrodes in a row, all X electrodes such as X1~X19 are electrodes of 2 area units; one column of the plurality of Y electrodes is divided into two electrode groups, namely Y1 electrode group and Y2 Among the Y electrodes, the Y electrodes at both ends, that is, the uppermost Y1 electrode and the lowermost Y2 belong to the first type electrode, and the remaining Y electrodes belong to the second type electrode.

The number of X electrodes is m*n/2=19*12/2=114, and each X electrode is connected to the junction by a lead wire, which has 114 lead wires; the number of Y electrodes is (m+1)*n /2=(19+1)*12/2=120, each Y electrode is connected to the junction area by a lead wire, and there are 120 lead wires; the number of mutual capacitance sensing nodes thus formed is m*n=19*12 =228, mutual capacitance 001~228 as described in Figure 10.

The total number of leads of the sensing array is (2mn+n)/2=(2*19*12+12)*/2=234. In practical applications, the two lowermost adjacent ones The lead wires connected to the electrodes X19 are connected together and connected to one of the bond pads of the land, such that the total number of leads of the sense array is 234-3=231.

Sixth embodiment of the present invention

Referring to FIG. 12, the entire sensing array of the single-layer mutual-capacitive touch screen body includes a first electrode specifically an X electrode, a second electrode being a Y electrode, and the entire sensing array can be connected to the touch control chip. +n pins, where m is 13, n is 12, and the entire sensing array includes n/3 = 4 sensing channel elements.

In each of the sensing channel units: among the 13 X electrodes in a row, the X electrodes at both ends, that is, X1 and X13 belong to the first type of electrodes, and the remaining X electrodes, such as X2 to X12, are the second type electrodes; There are three electrode groups, namely a Y1 electrode group, a Y2 electrode group, and a Y3 electrode group.

The number of X electrodes is m*n/3=13*12/3=52, and each X electrode is connected to the junction by a lead wire, and there are 52 lead wires; the number of Y electrodes is (m-1)*n /3=(13-1)*12/3=48, each Y electrode is connected to the junction area through a lead wire, and there are 48 lead wires; the number of mutual capacitance sensing nodes thus formed is 2 (m-1)* n/3=2(13-1)*12/3=96, mutual capacitance 01~96 as described in FIG.

The total number of leads of the sensing array is (2mn-n)/3=(2*13*12-12)*/3=100. In practical applications, the lead wires connected to the two adjacent electrodes X13 at the lower end are connected. Together, and connected to a bond pad of the bond pad, the total number of leads of the sense array is 100-2=98.

Seventh embodiment of the present invention

Referring to FIG. 13, the entire sensing array of the single-layer mutual-capacitive touch screen body includes a first electrode specifically an X electrode, a second electrode being a Y electrode, and the entire sensing array can be connected to the touch control chip. +n pins, where m is 17, n is 16, and the entire sensing array includes n/4 = 4 sensing channel elements.

In each of the sensing channel units: among the 17 X electrodes in a row, the X electrodes at both ends, that is, X1 and X17 belong to the first type of electrodes, and the remaining X electrodes, such as X2 to X16, are the second type of electrodes; There are four electrode groups, namely a Y1 electrode group, a Y2 electrode group, a Y3 electrode group, and a Y4 electrode group.

The number of X electrodes is m*n/4=17*16/4=68, and each X electrode is connected to the junction by a lead wire. There are 68 lead wires; the number of Y electrodes is (m-1)*n /4=(17-1)*16/4=64, each Y electrode is connected to the junction by a lead wire, and there are 64 lead wires; the number of mutual capacitance sensing nodes thus formed is (m-1)*n /2=(17-1)*16/2=128, mutual capacitance 001~128 as described in Fig. 12.

The total number of leads of the sensing array is (2mn-n)/4=(2*17*16-16)*/4=132. In practical applications, the lead wires connected to the two adjacent electrodes X17 at the lower end are connected. Together, and connected to a bond pad of the bond pad, the total number of leads of the sense array is 132-2 = 130.

The embodiment of the present invention further provides an electronic device, which includes the touch screen device as described in any of the second embodiment to the seventh embodiment, and details are not described herein.

The touch screen device and the single-layer mutual-capacitive touch screen body and the electronic device provided by the embodiments of the present invention are described in detail above. The principles and embodiments of the present invention are described in the following. The description of the above embodiments is only for helping to understand the method of the present invention and its core ideas; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scopes. In summary, the content of the specification should not be construed as limiting the invention.

1‧‧‧Single layer mutual capacitance touch screen body

10‧‧‧First electrode

10a‧‧‧first type electrode

10b‧‧‧Second type electrode

100‧‧‧Substrate

101‧‧‧Sensor channel unit

102‧‧‧First lead wire

103‧‧‧Second wiring

11‧‧‧second electrode

110‧‧‧Sensor channel unit layout area

120‧‧‧ junction area

Claims (41)

A single-layer mutual-capacitive touch screen body includes: a plurality of sensing channel units arranged in parallel, each sensing channel unit comprising a plurality of first electrodes and a plurality of second electrodes, wherein the plurality of first electrodes are used for Coupling with the plurality of second electrodes to form a plurality of mutual capacitance sensing nodes; a plurality of first lead wires, the plurality of first electrodes respectively connected to a single first lead wire; and a plurality of second lead wires The plurality of second electrodes are respectively connected to a single second lead wire, wherein the first lead wire and the second lead wire connected to the same sensing channel unit are respectively located on opposite sides of the same sensing channel unit; For each of the sensing channel units, the plurality of first electrodes include a first type electrode and a second type electrode, and each of the first type electrodes is coupled to a second electrode to form a mutual capacitance sensing node. a second type of electrode is coupled with two adjacent second electrodes to form two mutual capacitance sensing nodes, and each second electrode is coupled with two adjacent first electrodes to form two mutual capacitance sensing nodes; Said Electrode and a drive electrode receiving the second electrode is an electrode, or the first electrode and the second electrode is a receiving electrode is a drive electrode. The single-layer mutual-capacitive touch screen body of claim 1, wherein, for each sensing channel unit, the plurality of first electrodes comprise two first-type electrodes, and the second-type electrodes are located in the two Between the first type of electrodes. The single-layer mutual-capacitive touch screen body of claim 1, wherein each mutual capacitance sensing node is formed by cross-coupling a first electrode and a second electrode. The single-layer mutual-capacitive touch screen body according to any one of claims 1 to 3, wherein the plurality of parallel-disposed sensing channel units are mirror-symmetrical. The single-layer mutual-capacitive touch screen body of claim 4, wherein an area of the first type of electrode is smaller than an area of the second type of electrode, and an area of the second electrode is the same, both being larger than the The area of the first type of electrode is a positive integer multiple of the area of the second type of electrode. The single-layer mutual-capacitive touch screen body of claim 5, wherein an area of each of the second electrodes is the same as an area of each of the second type electrodes. The single-layer mutual-capacitive touch screen body of claim 6, wherein for each sensing channel unit, a sum of areas of the plurality of first electrodes is equal to a sum of areas of the plurality of second electrodes. The single-layer mutual-capacitive touch screen body of claim 4, wherein for each row of sensing channel units, the plurality of first electrodes are arranged in parallel, and the plurality of second electrodes are arranged in parallel. The single-layer mutual-capacitive touch screen body of claim 8, wherein the touch screen body comprises a substrate, the substrate is divided into a sensing channel unit routing area and at least one of the sensing channel unit routing areas. In the side junction area, the plurality of sensing channel units are disposed in the sensing channel unit routing area, and the first lead wire and the second lead wire are connected to the bonding area. The single-layer mutual-capacitive touch screen body of claim 9, wherein the bonding area comprises a bonding pad; and each of the first lead wires and each of the second lead wires are respectively connected to a single bonding pad. The single-layer mutual-capacitive touch screen body of claim 9, wherein the bonding area comprises a bonding pad; and for the adjacent two sensing channel units that are mirror-symmetrical: one row of the second electrode is located in two rows Between the electrodes, a second lead wire connected to the second electrode of each of the sensing channel units away from the end of the bonding pad is connected and connected to the same bonding pad, the other first lead wires and the second Leading wires are respectively connected to a single bonding pad; or, wherein two rows of first electrodes are located between the two rows of second electrodes, and the first electrode of each sensing channel unit is connected away from the first electrode of the bonding pad end The lead wires are connected together and connected to the same bonding pad, and the other first lead wires and the second lead wires are respectively connected to a single bonding pad. The single-layer mutual-capacitive touch screen body of claim 1, wherein the first lead wire and the second lead wire are lead wires made of indium tin oxide, nano silver or graphene. The single-layer mutual-capacitive touch screen body of claim 1, wherein the first electrode and the second electrode are square, elongated, triangular or zigzag electrodes. A touch screen device comprising the single-layer mutual-capacitive touch screen body and a touch control chip according to any one of claims 1 to 13, wherein the touch control chip is connected to the first electrode and the second electrode Used to achieve capacitive sensing. The touch screen device of claim 14, wherein for each sensing channel unit: The plurality of first electrodes are respectively connected to different pins of the touch control chip through the first lead wires, the plurality of second electrodes are divided into at least two electrode groups, and the second electrode in the same electrode group is not Adjacent, the second electrode in the same electrode group is connected to the same pin of the touch control chip through the second lead wire, and the second electrode in the different electrode group is connected to the different pin of the touch control chip through the second lead wire Or the plurality of first electrodes are divided into at least two electrode groups, and the first electrodes in the same electrode group are non-adjacent, and the first electrode in the same electrode group is connected to the touch control through the first lead wires; The same pin of the wafer, the first electrode of the different electrode group is connected to different pins of the touch control chip through the first lead wire, and the plurality of second electrodes are respectively connected to the touch control chip through the second lead wire Different pins. The touch screen device of claim 15, wherein when the plurality of second electrodes are divided into at least two electrode groups, the number of second electrodes in each of the electrode groups is the same, or when When the first electrodes are divided into at least two electrode groups, the number of the first electrodes in each of the electrode groups is not the same. A touch screen device, comprising the single-layer mutual-capacitive touch screen body and the touch control chip according to claim 4, wherein the touch control chip is used for capacitive sensing of the first electrode and the second electrode To get touch information. The touch screen device of claim 17, wherein two adjacent two sensing channel units arranged in mirror symmetry are divided into one group, and two rows of second electrodes of each group of sensing channel units are located in two rows of first electrodes. The second electrodes, which are in the same positional order, are connected to the same pin of the touch control wafer through the second lead wires. The touch screen device of claim 18, wherein for the two rows of first electrodes of each set of sensing channel units, the first electrodes in the same positional order are connected to different pins of the touch control wafer by the first lead wires. The touch screen device of claim 19, wherein for two adjacent sets of sensing channel units, two rows of first electrodes between the second electrodes are adjacent, and for the adjacent two rows of first electrodes, The first electrodes in the same positional order are connected to the same pin of the touch control wafer by the first lead wire or to the different pins of the touch control chip by the first lead wire. The touch screen device of claim 20, wherein for two adjacent sets of sensing channel units, the second electrode of the different group is connected to a different pin of the touch control wafer by the second lead wire. The touch screen device of claim 21, wherein the second electrode in the same positional order is connected to the touch control chip through the second lead wire for the two sets of sensing channel units separated by a group of sensing channel units One pin. The touch screen device of claim 22, wherein opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein, for the two rows of first electrodes, in the same position order An electrode is connected to the same pin of the touch control wafer through the first lead wire. The touch screen device of claim 17, wherein two adjacent two sensing channel units arranged in mirror symmetry are divided into one group, and one row of the first electrodes of each group of sensing channel units is located between the two rows of second electrodes. And the first electrodes in the same positional order are connected to the same pin of the touch control wafer through the first lead wires. The touch screen device of claim 24, wherein for the two rows of second electrodes of each set of sensing channel units, the second electrodes in the same positional order are connected to different pins of the touch control wafer by the second lead wires. The touch screen device of claim 25, wherein for two adjacent two sensing channel units, two rows of second electrodes between the first electrodes are adjacent, and for the adjacent two rows of second electrodes, The second electrodes in the same positional order are connected to the same pin of the touch control wafer by the second lead wire or to the different pins of the touch control chip by the second lead wire. The touch screen device of claim 26, wherein for two adjacent sensing channel units, two rows of first electrodes in different groups, the first electrodes in the same position order are connected to the touch control through the first lead wires Different pins of the wafer. The touch screen device of claim 27, wherein for the two sets of sensing channel units separated by a group of sensing channel units, the first electrodes in the same positional order are connected to the touch control wafer through the first lead wires One pin. The touch screen device of claim 28, wherein the opposite side edges of the plurality of sensing channel units are two rows of second electrodes, wherein, for the two rows of second electrodes, in the same position order The two electrodes are connected to the same pin of the touch control wafer through the second lead wire. The touch screen device of claim 17, wherein two adjacent two sensing channel units arranged in mirror symmetry are divided into one group, and the two rows of second electrodes of each group of sensing channel units are in the same position order. The second electrode is connected to a different pin of the touch control chip through the second lead wire, or/and, for each row of the first channel of the sensing channel unit The first electrodes in the same positional order are connected to different pins of the touch control wafer by the first lead wires. The touch screen device of claim 30, wherein the two rows of the first electrodes in each group of sensing channel units are respectively a first row of first electrodes and a second row of first electrodes, and the two rows of second electrodes are respectively a first row of second electrodes and a second row of second electrodes, for two rows of first rows of second adjacent electrodes of the two sets of sensing channel units, the second electrodes in the same order are connected to the touch control wafer by the second lead wires The same pin, or/and, for two rows of the second row of the adjacent two sensing channel units, the second electrode in the same order is connected to the same pin of the touch control wafer via the second lead wire. The touch screen device of claim 31, wherein for each group of sensing channel units, the first row of second electrodes and the second row of second electrodes are between the first row of first electrodes and the second row of first electrodes . The touch screen device of claim 32, wherein the first row of second electrodes is in the same row order in each group of sensing channel units, and the second row of second electrodes is arranged in each group of sensing channel units. The order is the same. The touch screen device of claim 33, wherein for the adjacent two sets of sensing channel units, the second row of the first row of each group of sensing channel units is adjacent and located between the second electrodes, for the phase The first electrode in the second row of the second row, the first electrode in the same order is connected to the same pin of the touch control wafer through the first lead wire. The touch screen device of claim 34, wherein opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein the first row is The first electrode in the same positional order is connected to the same pin of the touch control wafer through the first lead wire. The touch screen device of claim 34, wherein the opposite side edges of the plurality of sensing channel units are two rows of first electrodes, wherein, for the two rows of first electrodes, in the same position order An electrode is connected to a different pin of the touch control wafer by a first lead wire. The touch screen device of claim 17, wherein the plurality of sensing channel units are divided into a left half and a right half according to the entire area, and the left half and the right half respectively comprise the same number. a sensing channel unit, for each row of the second electrodes in each of the sensing channel units in the left half, the second electrode in the same positional order is connected to the same pin of the touch control wafer via the second lead wire, or/and, The second electrode of each row in each of the sensing channel units in the right half, the second electrode in the same positional order is connected to the same pin of the touch control wafer via the second routing wire. The touch screen device of claim 37, wherein the first electrodes in the same position order are connected to the touch control chip through the first lead wires for each of the first rows of the respective sensing channel units in the left half The different pins, or/and, for each row of the first electrodes in each of the sensing channel units in the right half, the first electrodes in the same positional order are connected to different pins of the touch control wafer by the first lead wires. The touch screen device of claim 38, wherein the second electrodes in the same positional order are connected to different pins of the touch control wafer by the second lead wires for each of the rows of second electrodes in the different portions. The touch screen device of claim 39, wherein the first electrodes in the same row order and in the same position order are connected to the different touch control wafers through the first lead wires for the first electrodes of the rows in the different portions. foot. The touch screen device of claim 40, wherein the first electrode in the mirror symmetrical position order is connected to the same pin of the touch control wafer through the first lead wire for each of the first electrodes in the different portions.