CN104850286B - A kind of electronic equipment and its single layer multiple spot mutual capacitance type touch screen - Google Patents

Abstract

The invention discloses a kind of electronic equipment and its single layer multiple spot mutual capacitance type touch screen, which includes：Multiple induction electrode groups；Each induction electrode group includes the first electrode unit extended in a second direction and second electrode unit；In a second direction, first electrode unit includes multiple first electrodes；Second electrode unit includes at least a second electrode；Multiple binding pads arranged in the first direction, the first electrode and second electrode of induction electrode group are correspondingly connected with corresponding binding pad respectively；A plurality of first lead, the first lead is for connecting first electrode to corresponding binding pad；A plurality of second lead, the second lead is for connecting second electrode to corresponding binding pad；In same first electrode unit, two first electrodes of arbitrary neighborhood are partly oppositely arranged in a first direction.The present invention improves touch accuracy while reducing the quantity of cabling and binding pad, reducing the width of cabling blind area, and reduces cost of manufacture.

Description

A kind of electronic equipment and its single layer multiple spot mutual capacitance type touch screen

Technical field

The present invention relates to technical field of touch control, more specifically to a kind of electronic equipment and its single layer multiple spot mutual capacitance type Touch screen.

Background technology

Currently, important component of the capacitive touch screen as human-computer interaction, has been widely used for mobile phone, tablet computer etc. In electronic product.Wherein, the capacitive touch screen of single layer, due to only needing to make one layer of electrode, cost is relatively low, and sexual valence compares Therefore height receives the extensive concern of people, have become the important development direction of capacitive touch screen.

The electrode pattern of existing a kind of single layer mutual capacitance type touch screen, as shown in Figure 1, being arranged parallel in the X direction including 4 First electrode X1~X4 of row, each first electrode are coupled with 15 along second electrode Y1~Y15 that Y-direction is arranged in order, To form multiple capacitive sensing nodes 12.Each first electrode, which is corresponded to by corresponding first lead 14 with corresponding binding pad 13, to be connected It connects, each second electrode is correspondingly connected with by corresponding second lead 15 with corresponding binding pad 13.The binding pad 13 is (soft with FPC Property wiring board, it is not shown) be connected.FPC is connect with chip (not shown) is touched, by touching chip testing capacitive sensing node 12 Capacitance variations determine the touching position information of user.The setting of pad 13 is bound in binding area 11.First lead 14 and second Lead 15 is the cabling of single layer mutual capacitance type touch screen.

The electrode pattern of the corresponding single layer mutual capacitance type touch screen being sized, structure shown in Fig. 1 causes single layer mutual capacitance type to be touched The width for touching the cabling blind area L0 of screen is larger, so that touch accuracy is poor；Meanwhile the electrode pattern of structure shown in Fig. 1 is led The quantity of the binding pad and cabling that cause single layer mutual capacitance type touch screen is more, causes cost of manufacture larger.

Invention content

To solve the above problems, the present invention provides a kind of electronic equipment and its single layer multiple spot mutual capacitance type touch screen, improve The touch accuracy of single layer multiple spot mutual capacitance type touch screen, and reduce the production cost.

To achieve the above object, the present invention provides a kind of single layer multiple spot mutual capacitance type touch screen, the single layer multiple spot mutual capacitance types Touch screen includes：

1st induction electrode group arranged in the first direction is to m-th of induction electrode group, wherein m is just whole more than 1 Number, each induction electrode group includes the first electrode unit extended in a second direction and the second electrode extended in a second direction Unit, the first electrode unit are oppositely arranged in said first direction with the second electrode unit, the second direction Perpendicular to the first direction, in this second direction, the first electrode unit includes the 1st first electrode to n-th First electrode, n are the positive integer more than 1, and the second electrode unit includes multiple second electrodes；

The first end in m induction electrode group is arranged in multiple binding pads arranged in the first direction, the multiple binding pad, The first electrode and second electrode of the m induction electrode group are correspondingly connected with corresponding binding pad respectively；

A plurality of first lead, first lead is for connecting the first electrode to corresponding binding pad；

A plurality of second lead, second lead is for connecting the second electrode to corresponding binding pad；

Wherein, one of the first electrode and the second electrode are used as touch-sensing electrode, and another one is used as touching Touch driving electrodes；In same first electrode unit, adjacent first electrode is partly oppositely arranged in a first direction.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, in this second direction, the second electrode unit Including the 1st second electrode to k-th of second electrode, k is the positive integer more than 1；

For i-th of second electrode, i is the positive integer less than k, in said first direction, i-th of second electrode It is oppositely arranged with i-th of first electrode part, and is oppositely arranged with i+1 first electrode part.

Preferably, at least partly adjacent in same second electrode unit in above-mentioned single layer multiple spot mutual capacitance type touch screen Second electrode is oppositely arranged in said first direction.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, in the same induction electrode group, in the first direction On：

K=n-1, k-th of second electrode are oppositely arranged with (n-1)th first electrode part, and with n-th of first electrode portion Divide and is oppositely arranged；

Or k=n, entire k-th of second electrode are oppositely arranged with n-th of part first electrode.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the first end is close to the of m induction electrode group One end of 1 first electrode.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, arbitrary first lead does not intersect with the first lead, arbitrarily Second lead does not intersect with the second lead, and arbitrary first lead does not intersect with arbitrary second lead.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, m is even number, in two induction electrodes of arbitrary neighborhood In group：First electrode unit is disposed adjacent with first electrode unit or second electrode unit is adjacent with second electrode unit to be set It sets, adjacent induction electrode group is arranged in mirror symmetry.

Preferably, adjacent with first electrode unit in first electrode unit in above-mentioned single layer multiple spot mutual capacitance type touch screen In the two adjacent induction electrode groups being arranged：

The last one first electrode of the first electrode unit of two adjacent induction electrode groups is drawn using same first Line connects same binding pad, and other first electrodes of the first electrode unit of two adjacent induction electrode groups are all made of individually The first lead connect corresponding binding and pad；

All first leads of two adjacent induction electrode groups are by corresponding first electrode along the second direction Negative direction be connected to corresponding binding pad.

Preferably, adjacent with second electrode unit in second electrode unit in above-mentioned single layer multiple spot mutual capacitance type touch screen In the two adjacent induction electrode groups being arranged：

Other second electrodes of the second electrode unit of two adjacent induction electrode groups are all made of individual second and draw Line connects corresponding binding pad；

All second leads of two adjacent induction electrode groups are by corresponding second electrode along the second direction Negative direction be connected to corresponding binding pad.

Preferably, adjacent with first electrode unit in first electrode unit in above-mentioned single layer multiple spot mutual capacitance type touch screen In the two adjacent induction electrode groups being arranged：

The first electrode of two first electrode units is all divided into first part and second part in this second direction；

In this second direction, the last one first electrode of Liang Ge first parts is connected to using same first lead Corresponding binding pad, other first electrodes of Liang Ge first parts are all made of individual first lead and are connected to corresponding binding pad, First lead corresponding to the first electrode of first part is that the negative direction by corresponding first electrode along the second direction connects It is connected to corresponding binding pad；

In this second direction, the most previous first electrode of two second parts is connected to using same first lead Corresponding binding pad, other first electrodes of two second parts are all made of individual first lead and are connected to corresponding binding pad, The first lead that the first electrode of second part is corresponding is to be connected to setting along the second direction by corresponding first electrode In the via of the second end of m induction electrode group, and the wire jumper by being connected with the via is connected to corresponding binding pad, described Second end is oppositely arranged with the first end, and each wire jumper connects different binding pads.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the first electrodes of Liang Ge first parts it is corresponding first Lead is connected to the correspondence via being arranged in the first end, and by and the wire jumper of via connection padded with corresponding binding Connection.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, in described two adjacent induction electrode groups, for Pass through the first electrode of wire jumper and via and corresponding binding pad connection：In a second direction, identical two first electricity of location order First lead of pole connects corresponding binding pad by same wire jumper, is electrically connected by via between wire jumper and corresponding lead.

Preferably, adjacent with second electrode unit in second electrode unit in above-mentioned single layer multiple spot mutual capacitance type touch screen In the two adjacent induction electrode groups being arranged：

The second electrode of two second electrode units is all divided into first part and second part in this second direction；

Other second electrodes of Liang Ge first parts are all made of individual second lead and are connected to corresponding binding pad, and first Corresponding second lead of partial second electrode is that the negative direction by corresponding second electrode along the second direction is connected to Corresponding binding pad；

Other second electrodes of two second parts are all made of individual second lead and are connected to corresponding binding pad, and second Corresponding second lead of partial second electrode is to be connected to setting at m along the second direction by corresponding second electrode The via of the second end of induction electrode group, and the wire jumper by being connected with the via is connected to corresponding binding and pads, described second End is oppositely arranged with the first end, and each wire jumper connects different binding pads.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the second electrode corresponding second of Liang Ge first parts Lead is connected to the correspondence via being arranged in the first end, and by and the wire jumper of via connection padded with corresponding binding Connection.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, in described two adjacent induction electrode groups, for Pass through the second electrode of wire jumper and via and corresponding binding pad connection：The second electrode of odd number connects same wire jumper, and the of even number Two electrodes connect same wire jumper.

Preferably, it in above-mentioned single layer multiple spot mutual capacitance type touch screen, defines in first electrode unit and second electrode unit One of be electrode of first kind unit, another one be second kind electrode unit；

The lead of each electrode of all electrode of first kind units is connected to along the negative direction of the second direction corresponding Binding pad；

The lead of each electrode of all second kind electrode units, which is connected to along the second direction, to be arranged in m induced electricity The via of the second end of pole group, and the wire jumper by being connected with the via is connected to corresponding binding pad, the second end and institute It states first end to be oppositely arranged, each wire jumper connects different binding pads.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the lead of each electrode of the electrode of first kind unit Be connected to the via being arranged in the first end, and by and via connection wire jumper and corresponding binding pad connection.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the first electrode includes：Part in a first direction The first comb electrodes and the second comb electrodes being oppositely arranged；

First comb electrodes include multiple first branch electrodes with second comb electrodes；First broach First branch electrodes of electrode are along first direction, the negative side of the first branch electrodes of second comb electrodes along first direction To；First comb electrodes are electrically connected with second comb electrodes；First comb electrodes and described second are combed Tooth electrode opposite part in this second direction：The of first branch electrodes of the first comb electrodes and the second comb electrodes One branch electrodes correspond.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, in same first electrode unit：For the 1st First comb electrodes of one electrode are different from the length of the second comb electrodes in a second direction, and the first of n-th of first electrode Comb electrodes are different from the length of the second comb electrodes in a second direction；The first comb electrodes and second of other first electrodes The length of comb electrodes in a second direction is identical.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, second electrode includes multiple second branch electrodes, described Second branch electrodes are arranged between first comb electrodes and second comb electrodes；

Second branch electrodes include：Along the first branch units of first direction negative direction extension and along described The second branch units that first direction extends；

First branch units is located between two the first branch electrodes of corresponding first comb electrodes, and corresponding Two the first branch electrodes couplings；

Second branch units is located between two the first branch electrodes of corresponding second comb electrodes, and corresponding Two the first branch electrodes couplings.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, for the 1st first electrode, in the second direction On, first the first branch electrodes of the first comb electrodes are electrically connected with first the first branch electrodes of its second comb electrodes It connects.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, for n-th of first electrode：In the second direction On, the last one first branch electrodes of the first comb electrodes and the last one first branch electrodes of its second comb electrodes Electrical connection；

For p-th of first electrode：One the first branch electrodes of its first comb electrodes and its second comb electrodes One the first branch electrodes electrical connection, two the first branch electrodes of electrical connection are oppositely arranged in said first direction, and p is big In 1 and less than n positive integer.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, for q-th of first electrode：Its first comb electrodes First branch electrodes be electrically connected with first branch electrodes of its second comb electrodes, two first point of electrical connection Branch electrode shifts to install in said first direction, and q is the positive integer more than 1 and no more than n.

Preferably, in above-mentioned single layer multiple spot mutual capacitance type touch screen, the structure of each induction electrode group is identical, each induction electrode It arranges in array between group.

The present invention also provides a kind of electronic equipment, which includes single layer multiple spot mutual tolerance described in any one of the above embodiments Formula touch screen.

Preferably, in above-mentioned electronic equipment, the electronic equipment further comprises flexible circuit board and touch chip, institute It states touch chip to be electrically connected with the single layer multiple spot mutual capacitance type touch screen by the flexible circuit board, wherein the flexible wire Road plate is connected with the multiple binding pad.

Preferably, the electronic equipment includes touch chip, and the touch chip includes multiple pins, by the multiple Pin carries out signal transmission with each induction electrode group, for each induction electrode group：

Each first electrode connects the different pins of the touch chip；

In a second direction, the second electrode in second electrode unit positioned at odd positions connects the same of the touch chip Pin, the second electrode that even number position is located in second electrode unit connect the same pin of the touch chip, and positioned at strange The touch chip that the pin of the touch chip for the second electrode connection that numerical digit is set is connect with the second electrode positioned at even number position Pin is different.

Preferably, for different induction electrode groups：

In a second direction, identical first electrode connection the same of touch chip of location order is drawn in each first electrode unit Foot, the different pins of the identical second electrode connection touch chip of location order in each second electrode unit.

Preferably, belong to the different pins of the second electrode connection touch chip in different induction electrode groups.

By foregoing description it is found that single layer multiple spot mutual capacitance type touch screen provided by the invention includes：It is arranged along first direction The 1st induction electrode group to m-th of induction electrode group；Wherein, m is the positive integer more than 1；Each induction electrode group includes edge The first electrode unit that second direction extends and the second electrode unit extended in a second direction；The first electrode unit with The second electrode unit is oppositely arranged in said first direction；The second direction is perpendicular to the first direction；Institute It states in second direction, the first electrode unit includes the 1st first electrode to n-th of first electrode；Wherein, n is more than 1 Positive integer；The second electrode unit includes at least a second electrode；Multiple binding pads arranged in the first direction are described more The first end in m induction electrode group, the first electrode and second electrode point of the m induction electrode group is arranged in a binding pad It is not correspondingly connected with corresponding binding pad；A plurality of first lead, first lead is for connecting the first electrode to corresponding Binding pad；A plurality of second lead, second lead is for connecting the second electrode to corresponding binding pad；Wherein, institute It states one of first electrode and the second electrode and is used as touch-sensing electrode, another one is used as touching driving electrodes；It is same In first electrode unit, two first electrodes of arbitrary neighborhood are partly oppositely arranged in a first direction.

Since two adjacent first electrodes of same first electrode unit are partly oppositely arranged in said first direction, this Sample is in two adjacent first electrodes of same first electrode unit：Not opposite part can be in a first direction for the two Sense node is formed with corresponding second electrode, while the opposite part of the two can also form with corresponding second electrode and incude Node improves touch accuracy to increase the quantity of sense node.The present invention is by being arranged first electrode and first electrode Opposite segments increase sense node number, it is possible to reduce the number of first electrode and second electrode, reduce cabling and Touch accuracy is improved while binding the quantity of pad, reduce the width of cabling blind area, and reduces cost of manufacture.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.

Fig. 1 is a kind of topological structure schematic diagram of single layer mutual capacitance type touch screen common in the art；

Fig. 2 is a kind of topological structure schematic diagram of single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；Fig. 3 is The topological structure schematic diagram of another kind single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Fig. 4 a are the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Fig. 4 b are the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Fig. 4 c are the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Fig. 4 d are the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Fig. 5 a are the specific knot of the better embodiment of an induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 2 Structure schematic diagram；

Fig. 5 b are the specific knot of the better embodiment of each induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 2 Structure schematic diagram；

Fig. 5 c be another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application each induction electrode group compared with The concrete structure schematic diagram of good embodiment；

Fig. 6 a are the specific knot of the better embodiment of an induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 3 Structure schematic diagram；

Fig. 6 b are the specific knot of the better embodiment of each induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 3 Structure schematic diagram；

Fig. 6 c be another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application each induction electrode group compared with The concrete structure schematic diagram of good embodiment；

Fig. 7 is a kind of topological structure schematic diagram of existing single layer multiple spot mutual capacitance type touch screen；

Fig. 8 is the topological structure schematic diagram of another existing single layer multiple spot mutual capacitance type touch screen；

Fig. 9 is the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Figure 10 is the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Figure 11 is the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Figure 12 is the topological structure schematic diagram of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application；

Figure 13 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other Embodiment shall fall within the protection scope of the present invention.

It should be noted that the word " multiple " in following contents is the meaning for including two and two or more.

The embodiment of the present application provides a kind of single layer multiple spot mutual capacitance type touch screen, and with reference to figure 2, Fig. 2 is the embodiment of the present application A kind of topological structure schematic diagram of the single layer multiple spot mutual capacitance type touch screen provided, the single layer multiple spot mutual capacitance type touch screen include：It is more A induction electrode group 27, multiple binding pads 23, the first lead 26 and the second lead 25.

Multiple induction electrode groups 27 include：The 1st induction electrode group 27 arranged along first direction (X-direction) is to m A induction electrode group 27.Wherein, m is the positive integer more than 1；It illustrates, shows by taking m=4 as an example in Fig. 2 illustrated embodiments 1st induction electrode group 27- the 4th induction electrode group 27.

Each induction electrode group 27 includes the first electrode unit 21 that (Y direction) extends in a second direction and along second The second electrode unit 22 that direction extends.First electrode unit 21 is oppositely arranged in a first direction with second electrode unit 22, To form capacitive sensing node 24,28, the capacitance variations of each capacitive sensing node 24 are tested by touch chip (not shown) To determine the touching position information of user.Second direction is perpendicular to first direction.

In a second direction, first electrode unit 21 includes the 1st first electrode to n-th of first electrode.Wherein, n is big It is illustrated by taking n=7 as an example in 1 positive integer, Fig. 2 illustrated embodiments, shows the 1st first electrode-the 7 first Electrode.In a second direction, second electrode unit 22 includes multiple second electrodes.

Multiple binding pads 23 are arranged along first direction, and the first end in m induction electrode group 27 is arranged in multiple binding pads 23, The first electrode and second electrode of m induction electrode group 27 are correspondingly connected with corresponding binding pad 23 respectively.First end be by One end of 1st first electrode of nearly m induction electrode group 27, i.e. in Fig. 2, with single layer multiple spot mutual capacitance type touch screen upper end for the One end, lower end are second end, and the line direction of first end to second end is second direction.

First lead 26 is for connecting first electrode to corresponding binding pad 23；Second lead 25 is for connecting second electrode To corresponding binding pad 23.

Wherein, one of first electrode and second electrode are used as touch-sensing electrode, and another one is used as touching driving electricity Pole.In same first electrode unit 21, adjacent first electrode is partly oppositely arranged in a first direction.

Since in a first direction, two adjacent first electrode parts of same first electrode unit 21 are oppositely arranged, this Sample is in two adjacent first electrodes of same first electrode unit 21：The two not opposite part in a first direction To form capacitive sensing node 24 with corresponding second electrode respectively, the capacitive sensing node 24 include single first electrode with The coupled capacitor of second electrode, when touching in this region, single capacitance changes；Meanwhile the two phase in a first direction To part can also form capacitive sensing node 28 with corresponding second electrode, which includes then adjacent The compound coupled capacitor of two first electrodes and the same second electrode, when touching generation in this region, two capacitances are simultaneously Change, so as to distinguish touch location be in 28 region of 24 region of capacitive sensing node or capacitive sensing node, Therefore this technology is identical in electrode physical size, increases the quantity and type of capacitive sensing node, improves tactile Control precision.

The present invention increases of capacitive sensing node by the way that first electrode and first electrode is arranged with opposite segments Number, it is possible to reduce the number of first electrode and second electrode is reducing cabling and binding the quantity of pad 23, reduction cabling blind area Width while improve touch accuracy, and reduce cost of manufacture.

In Fig. 2, in a second direction, second electrode unit 22 includes：1st second electrode is to k-th of second electrode, k For the positive integer more than 1.For i-th of second electrode, i is the positive integer less than k, in a first direction, i-th of second electrode It is oppositely arranged with i-th of first electrode part, and is oppositely arranged with i+1 first electrode part.K=n-1, k-th second Electrode is oppositely arranged with (n-1)th first electrode part, and is oppositely arranged with n-th of first electrode part.

For the single layer multiple spot mutual capacitance type touch screen that length is 15Pitch (pitch), if using embodiment party shown in Fig. 1 Formula, each second electrode length are 1Pitch, have 1 first electrode and 15 second electrodes in an induction electrode group, 15 capacitive sensing nodes 12 are formed, 16 cablings (1 first lead, 14,15 second leads 15) are needed.For all Four induction electrode groups：60 capacitive sensing nodes 12 are formed altogether, need 64 cablings.Length defined herein is second party Upward size.Wherein, pitch is the length value of a setting.

And use Fig. 2 illustrated embodiments, set one second electrode length as 2.5Pitch, the 1st first electrode and The length of 7th first electrode is 1.5Pitch, and the length of other first electrodes is 3Pitch, in a first direction two The length of opposite part is 0.5Pitch between adjacent first electrode.At this point, total length is still 15Pitch.One sense Answering has seven first electrodes and 6 second electrodes in electrode group 27, form 18 capacitive sensing nodes, need 13 cablings (7 first leads, 26,6 second leads 25).For four all induction electrode groups 27：72 sense nodes are formed altogether 24,52 cablings are needed.As it can be seen that relative to existing structure shown in FIG. 1, embodiment illustrated in fig. 2 is increasing capacitive sensing node While quantity, the quantity of cabling is reduced, thereby reduces the quantity of binding pad 23 and the width of cabling blind area L.Therefore Cost is reduced, and improves touch accuracy.Width is the size on first direction.Reduction for cabling blind area L width, can More induction electrode groups 27 are arranged in the single layer multiple spot mutual capacitance type touch screen of setting width, touch-control essence is further increased Degree.In other words, instead of more induction electrode groups 27, the binding pad 23 with the mutual capacitance type touch screen of single layer multiple spot shown in Fig. 2 is arranged The width of the FPC to fit can then correspond to reduction, and to save the manufacturing cost of FPC, correspondingly, including the single layer multiple spot is mutual The cost of the electronic equipment 131 (seeing below Figure 13) of appearance formula touch screen and FPC is relatively low.

It should be noted that arrange in mirror symmetry between each induction electrode group 27 in above-mentioned Fig. 2, so, each sense Answer and be not limited between electrode group 27 arrange in mirror symmetry, or the structure of each induction electrode group 27 is identical, each other it Between in array arrange.The lead for being preferably located at region between adjacent induction electrode group 27 is same type of lead, that is, Between adjacent induction electrode group 27 lead in region cannot existing first lead 26, and have the second lead 25, to reduce coupling Close interference.

With reference to figure 3, Fig. 3 is that the topological structure of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application shows It is intended to, in the mutual capacitance type touch screen of single layer multiple spot shown in Fig. 3, there are four induction electrode group 27, i.e. m=4, first electrode units 21 for tool With 6 first electrodes, i.e. n=6.At this point, k=n, entire k-th of second electrode is opposite with n-th of part first electrode to be set It sets.In same second electrode unit 22, at least partly adjacent second electrode is partly oppositely arranged in a first direction.Second electricity It, can be with previous second electrode in first party when the last one the second electrode length of pole unit in a second direction is shorter It is not oppositely arranged upwards, as shown in Figure 3.

As seen from Figure 3, in addition to forming all independent first electrodes of Fig. 2 and second electrode coupled capacitor 24, adjacent First electrode and same second electrode compound coupled capacitor 28 except, yet form adjacent second electrode and same first The compound coupled capacitor 29 of electrode, therefore under conditions of electrode physical size remains unchanged, the quantity of capacitive sensing node and Type further increases.

Using Fig. 3 modes, in an induction electrode group 27：Set first first electrode and the last one first electricity The length of pole is 1.5Pitch, and other first electrode length are 3.5Pitch, two adjacent first electrode phases on first direction To length be 0.5Pitch, and set the last one second electrode length as 0.5Pitch, other second electrode length are 3Pitch, in a first direction, the length of the opposite part of two neighboring second electrode is 0.5Pitch, single layer multiple spot mutual capacitance type The total length of touch screen is still 15Pitch.There is 6 first electrodes and 6 second electrodes, shape in one induction electrode group 27 At 20 sense nodes, 12 cablings (6 first leads, 26,6 second leads 25) are needed.For four all induced electricities Pole group 27：80 capacitive sensing nodes are formed altogether, need 48 cablings.Equally, relative to existing structure shown in FIG. 1, Fig. 3 institutes Show embodiment while increasing capacitive sensing number of nodes, reduces the quantity of the first lead 26, the second lead 25, and then drop The quantity of low binding pad 23 and the width of cabling blind area L.Therefore cost is reduced, and improves touch accuracy.

In a first direction, the length of two neighboring first electrode opposite segments and two neighboring second electrode counterpart The length value range divided can be set as the arbitrary value in section (0Pitch, 1.5Pitch) according to size requirements.

In the embodiment of the present application, arbitrary first lead 26 does not intersect with the first lead 26, arbitrary second lead 25 and Two leads 25 do not intersect, and arbitrary first lead 26 does not intersect with arbitrary second lead 25.So that the first lead 26 draws with second Line 25 can be arranged with same layer, reduce manufacture craft difficulty and screen body thickness.

Preferably, m is set as even number, in two induction electrode groups 27 of arbitrary neighborhood：First electrode unit 21 and One electrode unit 21 is disposed adjacent or second electrode unit 22 is disposed adjacent with second electrode unit 22.Wherein, adjacent sense Electrode group 27 is answered to be arranged in mirror symmetry, to improve the linearity and precision of touch-sensing.

In the above-described embodiment, it is disposed adjacent with first electrode unit 21 in first electrode unit 21 two adjacent In induction electrode group 27：The last one first electrode of the first electrode unit 21 of two adjacent induction electrode groups 27 uses Same first lead 26 connects same binding pad 23, the first electrode unit 21 of two adjacent induction electrode groups 27 it is other First electrode is all made of individual first lead 26 and connects corresponding binding pad 23；The institute of two adjacent induction electrode groups 27 First lead 26 is to be connected to corresponding binding pad 23 by the negative direction of corresponding first electrode in a second direction.

In the two adjacent induction electrode groups 27 being disposed adjacent with second electrode unit 22 in second electrode unit 22：It should The second electrode of the second electrode unit 22 of two adjacent induction electrode groups 27 is all made of the individual connection pair of second lead 25 The binding pad 23 answered；All second leads 25 of two adjacent induction electrode groups 27 are by corresponding second electrode along second The negative direction in direction is connected to corresponding binding pad 23.

The width that cabling blind area can also be further decreased by wire jumper and via, further increases touch accuracy.

In the two adjacent induction electrode groups 27 being disposed adjacent with first electrode unit 21 in first electrode unit 21：

The first electrode of two first electrode units 21 is all divided into first part and second part in a second direction.Such as Fruit n is even number, and first part is identical as the number of the first electrode of second part.If n is odd number, first part is than second Divide a few first electrode, in order to reduce cabling quantity.

In a second direction, the last one first electrode of Liang Ge first parts is connected to pair using same first lead 26 Pad 23 should be bound, number of leads can be further decreased, and is not in cross-cutting issue between lead.Liang Ge first parts its Its first electrode is all made of individual first lead 26 and is connected to corresponding binding pad 23, and the first electrode of first part is corresponding First lead 26 is to be connected to corresponding binding pad 23 by the negative direction of corresponding first electrode in a second direction.

In a second direction, the most previous first electrode of two second parts is connected to correspondence using same first lead Pad 23 is bound, number of leads can be further decreased, and be not in cross-cutting issue between lead.Two second parts it is other First electrode is all made of individual first lead 26 and is connected to corresponding binding pad 23, the first electrode of second part it is corresponding One lead 26 is to be connected to the mistake being arranged in the second end of m induction electrode group 27 in a second direction by corresponding first electrode Hole, and by being connected to corresponding binding pad 23 with the wire jumper that via connects, second end is oppositely arranged with first end, each wire jumper connects Connect different binding pads 23.

27 in the two adjacent induction electrode groups being disposed adjacent with second electrode unit 22 in second electrode unit 22：

The second electrode of two second electrode units 22 is all divided into first part and second part in a second direction.Such as Fruit k is even number, and first part is identical as the number of the second electrode of second part.If k is odd number, first part is than second Divide a few second electrode.

The second electrode of Liang Ge first parts is all made of individual second lead 25 and is connected to corresponding binding pad 23, and first Corresponding second lead of partial second electrode 25 is connected to pair by the negative direction of corresponding second electrode in a second direction Pad 23 should be bound.

The second electrode of two second parts is all made of individual second lead 25 and is connected to corresponding binding pad 23, and second Corresponding second lead of partial second electrode 25 is to be connected to that the sense at m is arranged in a second direction by corresponding second electrode Answer the via of the second end of electrode group 27, and by being connected to corresponding binding pad 23 with the wire jumper that via connects, second end and the One end is oppositely arranged, and each wire jumper connects different binding pads 23.

In two adjacent induction electrode groups 27, for the first electrode of two second parts：Phase in a first direction To the first lead 26 of two first electrodes corresponding binding pad 23 is connected by same wire jumper, it is logical between wire jumper and corresponding lead Via is electrically connected.In two adjacent induction electrode groups 27, for the of the second part of same second electrode unit 22 Two electrodes：The second electrode of odd number connects same wire jumper, and the second electrode of even number connects same wire jumper.In this manner it is ensured that energy While enough carrying out multi-point touch detection, the quantity of wire jumper is reduced, reduces cost of manufacture.

It should be noted that arrange in mirror symmetry between each induction electrode group 27 in above-mentioned Fig. 3, so, each sense Answer and be not limited between electrode group 27 arrange in mirror symmetry, or the structure of each induction electrode group 27 is identical, each other it Between in array arrange.The lead for being preferably located at region between adjacent induction electrode group 27 is same type of lead, that is, Between adjacent induction electrode group 27 lead in region cannot existing first lead 26, and have the second lead 25, to reduce coupling Close interference.

With reference to figure 4a, Fig. 4 a are the topological structure of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application Schematic diagram.Mode of Fig. 4 a illustrated embodiments based on above-mentioned wire jumper and via further decreases the width of cabling blind area.It is single Layer multiple spot mutual capacitance type touch screen includes viewing area and surrounds the rim area of viewing area, and each setting of induction electrode group 27 is being shown Area.The first end in single layer multiple spot mutual capacitance type touch screen is arranged in binding pad 23.The initiating terminal of each wire jumper 41 is arranged in single layer multiple spot The second end of mutual capacitance type touch screen, and it is connected to correspondence by the rim area on the left of single layer multiple spot mutual capacitance type touch screen or right side Binding pad 23.Wire jumper 41 is located at the top of 25 place metal layer of the first lead 26 and the second lead, and wire jumper 41 and metal layer Between have insulating layer.Wire jumper 41 is electrically connected by via 42 with corresponding lead, in order to which lead is electrically connected with corresponding binding pad 23 It connects.

In Fig. 4 a, the 1st induction electrode group 27 is set with the 2nd induction electrode group 27 for second electrode unit 22 is adjacent It sets, the 2nd induction electrode group 27 is that first electrode unit 21 is disposed adjacent with the 3rd induction electrode group 27.It is each as above-mentioned The first electrode unit 21 and second electrode unit 22 of induction electrode group 27 are all divided into first part and second part.M= When 4, n=7, k=6, for first electrode unit, first part includes first three first electrode, after second part includes Four first electrodes, for second electrode unit 22, first part includes first three second electrode, after second part includes Three second electrodes.

In the 2nd induction electrode group 27 and the 3rd induction electrode group 27：

In the first portion, the 1st-the 3 first electrode is all made of individual first lead 26 and is connected to corresponding tie up Determine pad 23, the first lead 26 corresponding to the first electrode of first part is the negative side by corresponding first electrode in a second direction Binding pad 23 is corresponded to being connected to.Preferably, the 3rd first electrode of two first parts can also use same first lead 26 It is connected to corresponding binding pad, lead will not be caused to intersect while reducing number of leads.

In the second portion, the 4th-the 7 first electrode is all made of individual first lead 26 and is connected to corresponding tie up Determine pad 23, the first lead 26 that the first electrode of second part is corresponding is connected in a second direction by corresponding first electrode Via 42 in second end is set, and the wire jumper 41 by being connected with via 42 is connected to corresponding binding pad 23, each wire jumper 41 Connect different binding pads 23.Preferably, the 4th first electrode of two first parts can also use same first lead 26 to connect It is connected to corresponding binding pad 23, lead will not be caused to intersect while reducing number of leads.

For the first electrode of two second parts, the first lead of two first electrodes faced in a first direction 26 connect corresponding binding pad 23 by same wire jumper, are electrically connected by via 42 between wire jumper and corresponding lead, are touched realizing While detection, the quantity of binding pad 23 and wire jumper 41 is reduced.Specifically, two the 4th first electrodes are respectively by corresponding The same wire jumper 41 in second end is arranged in the connection of first lead, and then connects same corresponding binding pad 23；Two the 5th first electricity The same wire jumper 41 in second end is arranged by the connection of corresponding first lead 26 respectively in pole, and then connects same corresponding binding Pad 23；The same wire jumper 41 in second end is arranged by the connection of corresponding first lead 26 respectively in two the 6th first electrodes, in turn Connect same corresponding binding pad 23；Two the 7th first electrodes are arranged by the connection of corresponding first lead 26 second respectively The same wire jumper 41 at end, and then connect same corresponding binding pad 23.

In the 1st induction electrode group 27 and the 2nd induction electrode group 27：

In the first portion, the 1st-the 3 second electrode is all made of individual second lead 25 and is connected to corresponding tie up Determine pad 23, corresponding second lead of the second electrode of first part 25 is the negative side by corresponding second electrode in a second direction Binding pad 23 is corresponded to being connected to.

In the second portion, the 4th-the 6 second electrode is all made of individual second lead 25 and is connected to corresponding tie up Determine pad 23, corresponding second lead of the second electrode of second part 25 is connected in a second direction by corresponding second electrode Via 42 in second end is set, and the wire jumper 41 by being connected with via 42 is connected to corresponding binding pad 23.

For the second electrode of two second parts, the second electrode of the second part of same second electrode unit 22：Very Several second electrodes connects same wire jumper 41, and the second electrode of even number connects same wire jumper 41.Specifically, the 1st induction electrode 4th second electrode of group 27 connect same wire jumper 41 with the 6th second electrode, the 4th second of the 2nd induction electrode group 27 Electrode connect same wire jumper 41 with the 6th second electrode.For second electrode unit 22, connected positioned at different groups of second electrodes Different wire jumpers 41.

With reference to figure 4b, Fig. 4 b are the topological structure of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application Schematic diagram.For Fig. 4 b on the basis of Fig. 4 a, the first lead that the first electrode of Liang Ge first parts is corresponding is connected to setting in institute State the correspondence via 43 of first end, and by and the wire jumper of the via 43 connection connected with corresponding binding pad 23.Two first Corresponding second lead of partial second electrode 25 is connected to the correspondence via 43 being arranged in the first end, and by with this The wire jumper that via 43 connects is connected with corresponding binding pad 23.

For the first electrode being connect with corresponding binding pad 23 with via 43 by wire jumper：In a first direction opposite two First lead 25 of a first electrode connects corresponding binding pad 23 by same wire jumper, passes through via between wire jumper and corresponding lead 43 electrical connections.For the second electrode being connect with corresponding binding pad 23 with via 43 by wire jumper：The second electrode of odd number connects The second electrode of same wire jumper, even number connects same wire jumper.

It is electrode of first kind unit to define one of first electrode unit 21 and second electrode unit 22, another one the Two class electrode units；The lead of each electrode of all electrode of first kind units is connected to pair along the negative direction of the second direction The binding pad 23 answered；The lead of each electrode of all second kind electrode units is connected to setting at m along the second direction The via 42 of the second end of induction electrode group 27, and the wire jumper 41 by being connected with the via 42 is connected to corresponding binding pad 23, the second end is oppositely arranged with the first end, and each wire jumper 41 connects different binding pads 23.

As illustrated in fig. 4 c, Fig. 4 c are the topology knot of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application Structure schematic diagram, for Fig. 4 c with first electrode unit 21 for electrode of first kind unit, second electrode unit 22 is second kind electrode unit, Mirror symmetry between adjacent induction electrode group 27 and induction electrode group 27.The lead of all first electrode units 21 is along institute The negative direction for stating second direction is connected to corresponding binding pad 23.The lead of all second electrode units 22 is along the second party To being connected to corresponding binding pad 23 by the via 42 and wire jumper 41 that are arranged in second end.

As shown in figure 4d, Fig. 4 d are the topology knot of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application Structure schematic diagram, the lead of each electrode of the electrode of first kind unit is connected to the via 43 being arranged in the first end, and leads to It crosses and the wire jumper of the via 43 connection is connected with corresponding binding pad 23.

In other embodiments, it is second kind electrode unit, second electrode list that can also set first electrode unit 21 Member 22 is electrode of first kind unit.

In the embodiment of the present application, with the first electrode unit 21 and second electrode unit of the 1st induction electrode group 27 22 in a first direction successively arrange for illustrate.In other embodiments, the 1st induction electrode group can also be set 27 second electrode unit 22 and first electrode unit 21 is arranged successively in a first direction.

In addition, in other embodiments, each induction electrode group 27 of Fig. 4 a to Fig. 4 b also can limitation be in not mirror image pair Claim the structure of arrangement or each induction electrode group 27 identical, arranges in array.

With reference to figure 5a, Fig. 5 a are the preferable implementation of an induction electrode group 27 of single layer multiple spot mutual capacitance type touch screen shown in Fig. 2 The concrete structure schematic diagram of mode.In induction electrode group shown in Fig. 5 a, n=3, k=2, i.e. its first electrode unit 21 include the 1st A first electrode X1, the 2nd first electrode X2 and the 3rd first electrode X3, second electrode unit 22 include：1st Two electrode Y1 and the 2nd second electrode Y2.Each first electrode includes：The first broach being partly oppositely arranged in a first direction Electrode x11 and the second comb electrodes x12.

The first comb electrodes x11 first ends corresponding with the second comb electrodes x12 of 1st first electrode X1 flush, n-th The first comb electrodes x11 second ends corresponding with the second comb electrodes x12 of first electrode flush.

First comb electrodes x11 and the second comb electrodes x12 includes multiple first branch electrodes D1.First comb electrodes The first branch electrodes D1 of x11 is along first direction, the negative side of the first branch electrodes D1 of the second comb electrodes x12 along first direction To.First comb electrodes x11 is electrically connected with the second comb electrodes x12.For the first comb electrodes x11 and the second comb electrodes The opposite parts in a second direction x12：The the first branch electrodes D1's and the second comb electrodes x12 of first comb electrodes x11 First branch electrodes D1 is corresponded.

In same first electrode unit 21：For the first comb electrodes x11 and the second broach electricity of the 1st first electrode The length of pole x12 in a second direction is different, and the first comb electrodes x11 and the second comb electrodes x12 of n-th of first electrode exist Length in second direction is different.The the first comb electrodes x11 and the second comb electrodes x12 of other first electrodes are in second direction On length it is identical.

Each second electrode includes multiple second branch electrodes D2, and the second branch electrodes D2 is arranged in the first comb electrodes x11 Between the second comb electrodes x12.The second branch electrodes D2 includes：First point extended along the first direction negative direction Zhi Danyuan and the second branch units extended along the first direction；First branch units is located at corresponding first broach Between two the first branch electrodes D1 of electrode x11, coupled with corresponding two the first branch electrodes D1；Second branch is single Member is between two the first branch electrodes D1 of corresponding second comb electrodes x12, with corresponding two the first branch electrodes D1 is coupled.

For the 1st first electrode X1, in a second direction, first the first branch electricity of the first comb electrodes x11 Pole D1 is electrically connected with first the first branch electrodes D1 of its second comb electrodes x12.Alternatively, for the 1st first electrode X1, In a second direction, the first of first the first branch electrodes D1 and its second comb electrodes x12 of the first comb electrodes x11 A first branch electrodes D1 is structure as a whole.

For n-th of first electrode：In a second direction, the last one first branch electricity of the first comb electrodes x11 Pole D1 is electrically connected with the last one first branch electrodes D1 of its second comb electrodes x12.For p-th of first electrode：It A first branch electrodes D1 of a first branch electrodes D1 and its second comb electrodes x12 of one comb electrodes x11 are electrically connected It connects, two the first branch electrodes of electrical connection are oppositely arranged in a first direction, and p is the positive integer more than 1 and less than n.Fig. 5 a In, n=3, p=2.

With reference to figure 6a, Fig. 6 a are that the concrete structure of an induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 3 shows It is intended to.In Fig. 6 a, equally, the connection type of n=3, k=2, two comb electrodes of the 1st first electrode X1 are identical as Fig. 5 a, For q-th of first electrode：A first branch electrodes D1's and its second comb electrodes x12 of its first comb electrodes x11 One the first branch electrodes D1 electrical connection, two the first branch electrodes D1 of electrical connection are shifted to install in a first direction, i.e., and two Person is not oppositely arranged in a first direction, can make adjacent two second electrodes in the same second electrode unit in this way It is partly oppositely arranged in a first direction.Q is the positive integer more than 1 and no more than n.In Fig. 6 a, p can be 2 or 3.

To arbitrary induction electrode group 27：The line direction of first electrode unit 21 and second electrode unit 22 is described the One direction, or be the negative direction of the first direction.

With reference to figure 5b, Fig. 5 b are the preferable embodiment party of each induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 2 The concrete structure schematic diagram of formula, in a first direction in the setting of adjacent 27 mirror symmetry of induction electrode group.With reference to figure 5c, Fig. 5 c For the better embodiment of each induction electrode group of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application Concrete structure schematic diagram, to arbitrary induction electrode group 27：First electrode unit 21 and the line direction of second electrode unit 22 are equal For the first direction.The single layer multiple spot mutual capacitance type that Fig. 5 b and Fig. 5 c are all based on the induction electrode group 27 of structure shown in Fig. 5 a is touched Touch screen.

With reference to figure 6b, Fig. 6 b are the preferable embodiment party of each induction electrode group of single layer multiple spot mutual capacitance type touch screen shown in Fig. 3 The concrete structure schematic diagram of formula, in a first direction in two adjacent 27 mirror symmetries of induction electrode group setting.With reference to figure 6c, Fig. 6 c are the preferable embodiment party of each induction electrode group of another single layer multiple spot mutual capacitance type touch screen provided by the embodiments of the present application The structure of the concrete structure schematic diagram of formula, each induction electrode group 27 is identical, arranges in array between each induction electrode group 27.Figure 6b and Fig. 6 c are all based on the single layer multiple spot mutual capacitance type touch screen of the induction electrode group of structure shown in Fig. 6 a.

Below with the embodiment of two neighboring 27 mirror symmetry of induction electrode group, adopted in conjunction with specific data comparison explanation Number of leads can be substantially reduced with the technical solution of the embodiment of the present application, and then reduces binding 23 quantity of pad and cabling blind area Width improves touch-control accuracy, reduces cost.It is general that 8 pitches on first direction, second party are set by taking five cun of screen body as an example Upward 15 pitch.

It should be noted that first electrode in each induction electrode group of the application 27 and second electrode be not limited to Fig. 5 a, Concrete structure shown in 5b, 5c, 6a, 6b, 6c, or the concrete structure of other suitable types.

As using mode shown in Fig. 7, Fig. 7 is a kind of topological structure schematic diagram of existing single layer multiple spot mutual capacitance type touch screen, One induction electrode group includes：1 first electrode, 71,15 second electrodes 72.71 length of first electrode is 15 pitches, the second electricity 72 length of pole is 1 pitch.At this point, induction electrode group 16 leads (1 first lead, 15 second leads) of needs, eight A induction electrode group needs 16*8=128 lead altogether.Cabling blind area between two adjacent induction electrode groups shares 30 Second lead.One induction electrode group forms 15 capacitive sensing nodes, and 8 induction electrode groups have 15*8=120 sense altogether Answer node.

It is that the topological structure of another existing single layer multiple spot mutual capacitance type touch screen shows such as to use Fig. 8 illustrated embodiments, Fig. 8 It is intended to, an induction electrode group includes：8 first electrodes, 81,8 second electrodes 82.In same induction electrode group：It can set It sets in the Y direction, first 81 length of first electrode is 1 pitch, and 81 length of other first electrodes is 2 pitches, the last one the Two electrodes, 82 length is 1 pitch, and 82 length of other second electrodes is 1 pitch.At this point, an induction electrode group needs 16 leads (8 first leads, 8 second leads) form 15 capacitive sensing nodes.Fig. 8 illustrated embodiments equally have 16*8= 128 leads, 15*8=120 capacitive sensing node.Cabling blind area between two neighboring induction electrode group shares 16 article Two leads.

Fig. 9 illustrated embodiments, Fig. 9 is such as used to be touched for another single layer multiple spot mutual capacitance type provided by the embodiments of the present application The topological structure schematic diagram of screen, first electrode unit 21 and the second electrode unit of Fig. 9 illustrated embodiment induction electrodes group 27 22 structure and the first electrode unit 21 and second electrode unit 22 of layout and Fig. 2 illustrated embodiment induction electrode groups Structure and layout are identical, and difference is, Fig. 94 induction electrode groups 27 more than Fig. 2, Fig. 9 is shared in a first direction Eight induction electrode groups 27.In fig.9, there is 13*8=104 lead, 18*8=144 capacitive sensing node.It is two neighboring Cabling blind area between induction electrode group 27 shares 12 second leads or 14 first leads.As it can be seen that relative to Fig. 7 and Fig. 8 Embodiment reduces number of leads (thereby reducing binding pad quantity), reduces the number of leads in blind area, improve electricity Hold the quantity of sense node.Therefore, touch accuracy is effectively improved, is reduced the production cost.And cabling blind area width can be reduced, Touch accuracy can be further increased.

Figure 10 illustrated embodiments, Figure 10 is such as used to be touched for another single layer multiple spot mutual capacitance type provided by the embodiments of the present application Touch the topological structure schematic diagram of screen, first electrode unit 21 and second electrode unit in Figure 10 illustrated embodiment induction electrode groups 22 structure and layout and first electrode unit 21 in Fig. 9 illustrated embodiment induction electrodes group 27 and second electrode unit 22 Structure and layout it is identical, difference is, in each induction electrode group 27：In a second direction, first three first electrode corresponds to The first lead and corresponding second lead of first three second electrode negative direction in a second direction padded with corresponding binding Connection, the first lead corresponding to other first electrodes and corresponding second lead of other second electrodes pass through in a second direction The correspondence via 42 being arranged in second end is connected with corresponding wire jumper 41, to realize and the connection of corresponding binding pad.

In Figure 10, number of leads is identical as Fig. 9, but relative to Fig. 9 embodiments, the lead of cabling blind area is divided into two A different direction, the width of cabling blind area is further shortened.And it can be according to above-mentioned wire jumper set-up mode, using multiplexing the One lead, the method for sharing wire jumper further decrease lead and binding pad quantity, reduce cost, improve touch accuracy.

Figure 11 illustrated embodiments, Figure 11 is such as used to be touched for another single layer multiple spot mutual capacitance type provided by the embodiments of the present application Touch the topological structure schematic diagram of screen, first electrode unit 21 and second electrode unit in Figure 11 illustrated embodiment induction electrode groups 22 structure and layout first electrode unit 21 and second electrode unit 22 in embodiment induction electrode group as shown in figure 3 Structure and layout are identical, and difference is, Figure 11 4 induction electrode groups, Figure 11 more than Fig. 3 are shared in a first direction Eight induction electrode groups 27.In fig.9, there is 12*8=96 lead, 20*8=160 sense node.Two neighboring induction Cabling blind area between electrode group 27 shares 12 leads.As it can be seen that relative to Fig. 7 and Fig. 8 embodiments, equally, reduces and draw Line number amount and cabling blind area width, effectively improve touch accuracy, reduce the production cost.

Figure 12 illustrated embodiments, Figure 12 is such as used to be touched for another single layer multiple spot mutual capacitance type provided by the embodiments of the present application Touch the topological structure schematic diagram of screen, first electrode unit 21 and second electrode unit in Figure 12 illustrated embodiment induction electrode groups 22 structure and layout and first electrode unit 21 in Figure 11 illustrated embodiment induction electrodes group 27 and second electrode unit 22 structure and layout is identical, and difference is, in each induction electrode group 27：In a second direction, the first two first electrode pair The negative direction of the first lead 26 answered and corresponding second lead of first three second electrode 25 in a second direction with it is corresponding It binds pad 23 to connect, the first lead 26 corresponding to other first electrodes and corresponding second lead, the 25 equal edge of other second electrodes Second direction is by being arranged correspondence via 42 and corresponding wire jumper 41 connection in second end, to the company realized and corresponding binding is padded It connects.

In Figure 12, number of leads is identical as Figure 11, but relative to Figure 11 embodiments, the lead of cabling blind area is divided into Two different directions, the width of cabling blind area is further shortened.And it can be according to above-mentioned wire jumper set-up mode, using multiplexing First lead 26, the method for sharing wire jumper further decrease lead and binding pad quantity, reduce cost, improve touch accuracy.

It should be noted that single layer multiple spot mutual capacitance type touch screen refers to first electrode uses single-layer electrodes layer system with second electrode It is standby to form, the mutual capacitance type touch screen of multi-point touch may be implemented.

By foregoing description it is found that originally setting application embodiment single layer multiple spot mutual capacitance type touch screen is reducing cabling and binding The quantity of pad improves touch accuracy while reduce the width of cabling blind area, and reduces cost of manufacture.

The embodiment of the present application also provides a kind of electronic equipment, and with reference to figure 13, Figure 13 is provided by the embodiments of the present application one The structural schematic diagram of kind electronic equipment 131, the electronic equipment 131 include single layer multiple spot mutual capacitance type touch screen 132.Wherein, single layer Multiple spot mutual capacitance type touch screen 132 can be the single layer multiple spot mutual capacitance type touch screen of any of the above-described kind of embodiment.The electronics is set Standby 131 be such as mobile phone, tablet computer, navigation equipment.

In addition, the electronic equipment 131 further comprises FPC (flexible circuit board) and touch chip (not shown).It is described Touch chip is electrically connected by the FPC with the single layer multiple spot mutual capacitance type touch screen 132.The touch chip is used for described Single layer multiple spot mutual capacitance type touch screen 132 provides drive signal, and receives the sensing letter from single layer multiple spot mutual capacitance type touch screen 132 Number, to realize the function of executing touch detection.

Since electronic equipment 131 uses above-described embodiment single layer multiple spot mutual capacitance type touch screen, electronic equipment 131 to touch It is good and at low cost to control precision.In addition, since the quantity of the binding pad 23 of the present invention can reduce, correspondingly, connect with binding pad 23 The width of the FPC connect, which corresponds to, to be reduced, so as to further reduce the cost.

Incorporated by reference to the schematic diagram of the single layer multiple spot mutual capacitance type touch screen of the application the various embodiments described above, the application electronics is set Standby 131 touch chip is described as follows with the first electrode of single layer multiple spot mutual capacitance type touch screen and the connection relation of second electrode：

The touch chip includes multiple pins, and the multiple pin is for transmitting touch chip and single layer multiple spot mutual capacitance type Signal between touch screen, for each induction electrode group 27：

Each first electrode connects the different pins of the touch chip；

In a second direction, the second electrode in second electrode unit 22 positioned at odd positions connects the same of the touch chip One pin, the second electrode that even number position is located in second electrode unit 22 connect the same pin of the touch chip, and position In the touch-control core that the pin for the touch chip that the second electrode of odd positions connects is connect with the second electrode positioned at even number position The pin of piece is different.

For different induction electrode groups 27：

In a second direction, the identical first electrode of location order connects the same of touch chip in each first electrode unit 21 Pin, the different pins of the identical second electrode connection touch chip of location order in each second electrode unit 22.

Belong to the different pins of the second electrode connection touch chip in different induction electrode groups 27.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest range caused.

Claims (29)

1. a kind of single layer multiple spot mutual capacitance type touch screen, which is characterized in that including：

1st induction electrode group arranged in the first direction is to m-th of induction electrode group, wherein m is the positive integer more than 1, often A induction electrode group includes the first electrode unit extended in a second direction and the second electrode unit extended in a second direction, The first electrode unit is oppositely arranged in said first direction with the second electrode unit, the second direction perpendicular to The first direction, in this second direction, the first electrode unit include the 1st first electrode to n-th first electricity Pole, n are the positive integer more than 1, and the second electrode unit includes multiple second electrodes；

Multiple binding pads arranged in the first direction, the first end in m induction electrode group is arranged in the multiple binding pad, described The first electrode and second electrode of m induction electrode group are correspondingly connected with corresponding binding pad respectively；

A plurality of first lead, first lead is for connecting the first electrode to corresponding binding pad；

A plurality of second lead, second lead is for connecting the second electrode to corresponding binding pad；

Wherein, one of the first electrode and the second electrode are used as touch-sensing electrode, and another one, which is used as touching, drives Moving electrode；In same first electrode unit, adjacent first electrode is partly oppositely arranged in a first direction.

2. single layer multiple spot mutual capacitance type touch screen according to claim 1, which is characterized in that in this second direction, institute It states second electrode unit and includes the 1st second electrode to k-th of second electrode, k is the positive integer more than 1；

For i-th of second electrode, i is the positive integer less than k, in said first direction, i-th of second electrode and the I first electrode part is oppositely arranged, and is oppositely arranged with i+1 first electrode part.

3. single layer multiple spot mutual capacitance type touch screen according to claim 2, which is characterized in that in same second electrode unit, At least partly adjacent second electrode is oppositely arranged in said first direction.

4. single layer multiple spot mutual capacitance type touch screen according to claim 2, which is characterized in that in the same induction electrode group, In said first direction：

K=n-1, k-th of second electrode are oppositely arranged with (n-1)th first electrode part, and with n-th of first electrode part phase To setting；

Or k=n, entire k-th of second electrode are oppositely arranged with n-th of part first electrode.

5. single layer multiple spot mutual capacitance type touch screen according to claim 1, which is characterized in that the first end is close to m One end of 1st first electrode of induction electrode group.

6. single layer multiple spot mutual capacitance type touch screen according to claim 1, which is characterized in that arbitrary first lead draws with first Line does not intersect, and arbitrary second lead does not intersect with the second lead, and arbitrary first lead does not intersect with arbitrary second lead.

7. single layer multiple spot mutual capacitance type touch screen according to claim 1, which is characterized in that m is even number, in arbitrary neighborhood In two induction electrode groups：First electrode unit be disposed adjacent with first electrode unit or second electrode unit and second electricity Pole unit is disposed adjacent, and adjacent induction electrode group is arranged in mirror symmetry.

8. single layer multiple spot mutual capacitance type touch screen according to claim 7, which is characterized in that in first electrode unit and first In two adjacent induction electrode groups that electrode unit is disposed adjacent：

The last one first electrode of the first electrode unit of two adjacent induction electrode groups is connected using same first lead Connect same binding pad, other first electrodes of the first electrode unit of two adjacent induction electrode groups are all made of individual the One lead connects corresponding binding pad；

All first leads of two adjacent induction electrode groups are by corresponding first electrode along the anti-of the second direction Direction is connected to corresponding binding pad.

9. single layer multiple spot mutual capacitance type touch screen according to claim 7, which is characterized in that in second electrode unit and second In two adjacent induction electrode groups that electrode unit is disposed adjacent：

Other second electrodes of the second electrode unit of two adjacent induction electrode groups are all made of individual second lead and connect Connect corresponding binding pad；

All second leads of two adjacent induction electrode groups are by corresponding second electrode along the anti-of the second direction Direction is connected to corresponding binding pad.

10. single layer multiple spot mutual capacitance type touch screen according to claim 7, which is characterized in that in first electrode unit and In two adjacent induction electrode groups that one electrode unit is disposed adjacent：

The first electrode of two first electrode units is all divided into first part and second part in this second direction；

In this second direction, the last one first electrode of Liang Ge first parts is connected to correspondence using same first lead Binding pad, other first electrodes of Liang Ge first parts, which are all made of individual first lead and are connected to corresponding binding, to be padded, and first First lead corresponding to partial first electrode is that the negative direction by corresponding first electrode along the second direction is connected to Corresponding binding pad；

In this second direction, the most previous first electrode of two second parts is connected to correspondence using same first lead Binding pad, other first electrodes of two second parts, which are all made of individual first lead and are connected to corresponding binding, to be padded, and second First lead corresponding to partial first electrode is to be connected to setting at m along the second direction by corresponding first electrode The via of the second end of induction electrode group, and the wire jumper by being connected with the via is connected to corresponding binding and pads, described second End is oppositely arranged with the first end, and each wire jumper connects different binding pads.

11. single layer multiple spot mutual capacitance type touch screen according to claim 10, which is characterized in that the first of Liang Ge first parts Corresponding first lead of electrode is connected to the correspondence via being arranged in the first end, and the wire jumper by being connect with the via It pads and connects with corresponding binding.

12. single layer multiple spot mutual capacitance type touch screen according to claim 11, which is characterized in that in described two adjacent senses It answers in electrode group, for the first electrode by wire jumper and via and corresponding binding pad connection：In a second direction, location order phase First lead of two same first electrodes connects corresponding binding pad by same wire jumper, passes through between wire jumper and corresponding lead Hole is electrically connected.

13. the single layer multiple spot mutual capacitance type touch screen according to any one of claim 7-12 claims, feature exist In in the two adjacent induction electrode groups being disposed adjacent with second electrode unit in second electrode unit：

The second electrode of two second electrode units is all divided into first part and second part in this second direction；

Other second electrodes of Liang Ge first parts are all made of individual second lead and are connected to corresponding binding pad, first part Corresponding second lead of second electrode be that negative direction by corresponding second electrode along the second direction is connected to correspondence Binding pad；

Other second electrodes of two second parts are all made of individual second lead and are connected to corresponding binding pad, second part Corresponding second lead of second electrode be by corresponding second electrode along the second direction be connected to be arranged at m induction The via of the second end of electrode group, and the wire jumper by being connected with the via is connected to corresponding binding pad, the second end with The first end is oppositely arranged, and each wire jumper connects different binding pads.

14. single layer multiple spot mutual capacitance type touch screen according to claim 13, which is characterized in that the second of Liang Ge first parts Corresponding second lead of electrode is connected to the correspondence via being arranged in the first end, and the wire jumper by being connect with the via It pads and connects with corresponding binding.

15. single layer multiple spot mutual capacitance type touch screen according to claim 14, which is characterized in that in described two adjacent senses It answers in electrode group, for the second electrode by wire jumper and via and corresponding binding pad connection：The second electrode connection of odd number is same The second electrode of one wire jumper, even number connects same wire jumper.

16. single layer multiple spot mutual capacitance type touch screen according to claim 7, which is characterized in that define first electrode unit with One of second electrode unit is electrode of first kind unit, and another one is second kind electrode unit；

The lead of each electrode of all electrode of first kind units is connected to corresponding binding along the negative direction of the second direction Pad；

The lead of each electrode of all second kind electrode units, which is connected to along the second direction, to be arranged in m induction electrode group Second end via, and the wire jumper by being connected with the via is connected to corresponding binding pad, the second end and described the One end is oppositely arranged, and each wire jumper connects different binding pads.

17. single layer multiple spot mutual capacitance type touch screen according to claim 16, which is characterized in that the electrode of first kind unit The lead of each electrode be connected to the via being arranged in the first end, and by and the wire jumper of via connection tied up with corresponding Fixed pad connection.

18. according to any one of them single layer multiple spot mutual capacitance type touch screen of claim 1-12,16 and 17, which is characterized in that institute Stating first electrode includes：The first comb electrodes and the second comb electrodes being partly oppositely arranged in a first direction；

First comb electrodes include multiple first branch electrodes with second comb electrodes；First comb electrodes The first branch electrodes along first direction, the negative direction of the first branch electrodes of second comb electrodes along first direction；Institute The first comb electrodes are stated to be electrically connected with second comb electrodes；For first comb electrodes and second comb electrodes Opposite part in this second direction：First branch electrodes of the first comb electrodes and the first branch of the second comb electrodes Electrode corresponds.

19. single layer multiple spot mutual capacitance type touch screen according to claim 18, which is characterized in that in same first electrode unit In：It is different from the length of the second comb electrodes in a second direction for the first comb electrodes of the 1st first electrode, n-th First comb electrodes of first electrode are different from the length of the second comb electrodes in a second direction；The first of other first electrodes Comb electrodes are identical as the length of the second comb electrodes in a second direction.

20. single layer multiple spot mutual capacitance type touch screen according to claim 19, which is characterized in that second electrode includes multiple Two branch electrodes, second branch electrodes are arranged between first comb electrodes and second comb electrodes；

Second branch electrodes include：Along the first branch units of first direction negative direction extension and along described first The second branch units that direction extends；

First branch units is located between two the first branch electrodes of corresponding first comb electrodes, with corresponding two First branch electrodes couple；

Second branch units is located between two the first branch electrodes of corresponding second comb electrodes, with corresponding two First branch electrodes couple.

21. single layer multiple spot mutual capacitance type touch screen according to claim 19, which is characterized in that for the 1st first electrode, In this second direction, first of first the first branch electrodes of the first comb electrodes and its second comb electrodes the One branch electrodes are electrically connected.

22. single layer multiple spot mutual capacitance type touch screen according to claim 21, which is characterized in that for n-th of first electrode： In this second direction, last of the last one first branch electrodes of the first comb electrodes and its second comb electrodes A first branch electrodes electrical connection；

For p-th of first electrode：One the first branch electrodes of its first comb electrodes with one of its second comb electrodes First branch electrodes are electrically connected, and two the first branch electrodes of electrical connection are oppositely arranged in said first direction, and p is more than 1 And the positive integer less than n.

23. single layer multiple spot mutual capacitance type touch screen according to claim 21, which is characterized in that for q-th of first electrode： One the first branch electrodes of its first comb electrodes are electrically connected with first branch electrodes of its second comb electrodes, are electrically connected Two the first branch electrodes connect shift to install in said first direction, and q is the positive integer more than 1 and no more than n.

24. single layer multiple spot mutual capacitance type touch screen according to claim 1, which is characterized in that the structure of each induction electrode group It is identical, it arranges in array between each induction electrode group.

25. a kind of electronic equipment, which is characterized in that touched including such as claim 1-24 any one of them single layer multiple spot mutual capacitance type Touch screen.

26. electronic equipment according to claim 25, which is characterized in that the electronic equipment further comprises soft circuit Plate and touch chip, the touch chip are electrically connected by the flexible circuit board with the single layer multiple spot mutual capacitance type touch screen, Wherein, the flexible circuit board is connected with the multiple binding pad.

27. electronic equipment according to claim 25, which is characterized in that the electronic equipment includes touch chip, described Touch chip includes multiple pins, signal transmission is carried out by the multiple pin and each induction electrode group, for each induction Electrode group：

Each first electrode connects the different pins of the touch chip；

In a second direction, the same of the touch chip is connected positioned at the second electrode of odd positions in second electrode unit to draw Foot, the second electrode that even number position is located in second electrode unit connects the same pin of the touch chip, and is located at odd number The touch chip that the pin of the touch chip of the second electrode connection of position is connect with the second electrode positioned at even number position is drawn Foot is different.

28. electronic equipment according to claim 27, which is characterized in that for different induction electrode groups：

In a second direction, in each first electrode unit location order identical first electrode connection touch chip same pin, The different pins of the identical second electrode connection touch chip of location order in each second electrode unit.

29. electronic equipment according to claim 27, which is characterized in that belong to second in different induction electrode groups Electrode connects the different pins of touch chip.