CN206489548U - Touch induction device and electronic installation - Google Patents

Abstract

The utility model discloses a kind of touch induction device and electronic installation, and touch induction device includes multiple capacitive sensing units and controller.Multiple capacitive sensing units are arranged in array, multiple capacitive sensing units include the first sensing unit and two the second sensing units, first sensing unit and two the second sensing units are located at same a line, and the first sensing unit is adjacently located between two the second sensing units.Controller connects multiple capacitive sensing units, and in a cycle, control the first sensing unit charging to control two the second sensing units first to be charged within the cycle and discharged afterwards.Controller is used for the output signal of the first sensing unit of reception and two the second sensing units and analyzes output signal to judge whether the first sensing unit is touched.In this way, precision and the sensitivity of touch induction device can be improved.

Description

Touch induction device and electronic installation

Technical field

The utility model is related to touching technique, more particularly to a kind of touch induction device and electronic installation.

Background technology

In the related art, the capacitive sensing unit of touch induction device correspond to corresponding pixel, existing touch Induction installation only determines corresponding pixel by detecting the changing value of some capacitive sensing unit, still, touch sensible dress The accuracy and sensitivity put is poor.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried For a kind of touch induction device and electronic installation.

The touch induction device of the utility model embodiment includes multiple capacitive sensing units and controller.It is the multiple Capacitive sensing unit is arranged in array, and the multiple capacitive sensing unit includes the first sensing unit and two second sensings are single Member, first sensing unit and described two second sensing units are located at same a line, and first sensing unit is adjacent to Between described two second sensing units.The controller is electrically connected with the multiple capacitive sensing unit, and is used for In a cycle, the first sensing unit charging is controlled, controls described two second sensing units first to be filled within the cycle Discharged after electricity.The controller is for receiving the output signal of first sensing unit and described two second sensing units simultaneously The output signal is analyzed to judge whether first sensing unit is touched.

The touch induction device of the utility model embodiment passes through a pair institute adjacent with first sensing unit State two the second sensing units and first charge and discharge afterwards, and analyze output signal to judge whether first sensing unit is touched Touch, and then can confirm that corresponding pixel, in this way, precision and the sensitivity of the touch induction device can be improved.

In some embodiments, the touch induction device includes multiple emission electrodes and multiple receiving electrodes, described Controller connects the multiple emission electrode and the multiple receiving electrode, and the multiple emission electrode receives electricity with the multiple Pole spatial intersecting, a cross-point one capacitive sensing unit of formation of the emission electrode and the receiving electrode.

In some embodiments, the touch induction device includes dielectric, and the dielectric is filled in described Between emission electrode and the receiving electrode.

In some embodiments, first sensing unit and described two second sensing units are located at line n, described Controller is used for the control within the cycle and is grounded positioned at the capacitive sensing unit of the (n-1)th row and the (n+1)th row, wherein 1<n≤(k- 1), k is total line number of the capacitive sensing unit of the touch induction device, and n and k are natural number.

In some embodiments, first sensing unit and described two second sensing units are located at line n, described Controller is used for the capacitive sensing unit ground connection of within cycle control positioned at the (n-1)th row and the (n+1)th row, and control is located at the The capacitive sensing unit suspension joint of n-2 rows, wherein 2<N≤(k-1), k are the capacitive sensing of the touch induction device Total line number of unit, n and k are natural number.

In some embodiments, capacitive sensing unit described in every a line is connected with contactor, and the controller is used for The contactor is controlled to disconnect to control the capacitive sensing unit suspension joint, the controller is used to control the contactor Close to control the capacitive sensing unit to be grounded.

In some embodiments, first sensing unit is arranged positioned at jth, one of them described second sensing unit position Arranged in jth -1, another described second sensing unit is arranged positioned at jth+1, the controller is used for the control bit within the cycle The capacitive sensing unit ground connection arranged in jth+2, wherein 2<J≤(m-2), m are the electric capacity of the touch induction device Total columns of sensing unit, j and m are natural number.

In some embodiments, the cycle includes the first subcycle and the second subcycle sorted successively, the control Device processed is used to control described two second sensing units to charge, in second subcycle internal control in first subcycle Make described two second sensing unit electric discharges.

In some embodiments, the cycle includes first subcycle, second subcycle sorted successively And the 3rd subcycle, the controller be used to controlling in first subcycle described two second sensing units chargings, The described two second sensing unit electric discharges of second subcycle internal control system, are controlled described two in the 3rd subcycle Second sensing unit charges.

The utility model embodiment also provides a kind of electronic installation.The electronic installation includes appointing for above-mentioned embodiment The touch induction device for an embodiment of anticipating.

The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partly will be under Become obvious in the description in face, or recognized by practice of the present utility model.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage can be retouched from reference to accompanying drawings below to embodiment It will be apparent and be readily appreciated that in stating, wherein：

Fig. 1 is the high-level schematic functional block diagram of the touch induction device of the utility model embodiment.

Fig. 2 is the structural representation of the touch induction device of the utility model embodiment.

Fig. 3 is another structural representation of the touch induction device of the utility model embodiment.

Fig. 4 is the control timing diagram of the touch induction device of the utility model embodiment.

Fig. 5 is another control timing diagram of the touch induction device of the utility model embodiment.

Embodiment

Embodiment of the present utility model is described below in detail, the example of embodiment is shown in the drawings, wherein, it is identical Or similar label represents same or similar element or the element with same or like function from beginning to end.

The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the utility model, and can not It is interpreted as to limitation of the present utility model.

Fig. 1 and Fig. 2 is referred to, the touch induction device 10 of the utility model embodiment includes multiple capacitive sensing units 12 and controller 14.Multiple capacitive sensing units 12 are arranged in array.It is single that multiple capacitive sensing units 12 include the first sensing Member 122 and two the second sensing units 124.First sensing unit 122 and two the second sensing units 124 are located at same a line, and First sensing unit 122 is adjacently located between two the second sensing units 124.

Controller 14 is electrically connected with multiple capacitive sensing units 12, and in a cycle, the sensing of control first to be single Two the second sensing units 124 of the charging of member 122 and control first charge within the cycle to discharge afterwards.Controller 14 is used to receive the first sense Answering the output signal of unit 122 and two the second sensing units 124 and analyzing output signal is to judge the first sensing unit 122 It is no to be touched.

Therefore, the touch induction device 10 of the utility model embodiment passes through pair adjacent with the first sensing unit 122 Two the second sensing units 124 first charge and discharged afterwards, and analyze output signal to judge whether the first sensing unit 122 is touched Touch, and then can confirm that corresponding pixel, in this way, precision and the sensitivity of touch induction device 10 can be improved.

Specifically, capacitive sensing unit 12 is when no finger is touched, and the capacitance of multiple capacitive sensing units 12 is zero Or capacitance is smaller, correspondingly, the electric signal (such as voltage) that multiple capacitive sensing units 12 are exported is zero or less than predetermined threshold Value.When capacitive sensing unit 12 is electrically charged, the electric signal (such as voltage) that capacitive sensing unit 12 is exported changes, for example The electric signal amplitude increase of output.

When there is finger to touch some or certain several capacitive sensing units 12, the capacitance of capacitive sensing unit 12 can occur Change, its electric signal exported also accordingly changes.When controller 14 need to judge some capacitive sensing unit 12 whether by During touch, controller charges to some capacitive sensing unit 12, pair is expert at two adjacent rows with some capacitive sensing unit 12 Capacitive sensing unit 12 is grounded, and reads output signal that some capacitive sensing unit 12 is expert to judge some capacitive sensing Whether unit 12 is touched.

For example, when controller 14 need to judge whether the first sensing unit 122 is touched, controller 14 is in a cycle First sensing unit 122 is charged, and two the second sensing units 124 are first charged discharged afterwards, controller 14 reads first and felt The output signal for answering the sensing unit 124 of unit 122 and second to be expert at.Due within some period of a cycle or some Time, the first sensing unit 122 and two the second sensing units 124 are electrically charged, and in another period of a cycle Interior or another time, two the second sensing units 124 discharge, so as to utilize the charge and discharge of two the second sensing units 124 Electric situation presents a contrast effect, increases sensitivity and the precision for the first sensing unit 122 being measured with this.

In addition, in the utility model embodiment, touch induction device 10 can be fingerprint sensor.Present embodiment Fingerprint sensor fingerprint sensor can be improved by the amplitude of variation for the capacity output for changing capacitive sensing unit Sensitivity and precision, it is simple and easy to apply.When user's finger touches fingerprint sensor, by judging fingerprint sensor now defeated Go out capacitance, the position that finger is touched can be judged quickly and exactly.In another embodiment, touch induction device 10 can For touch-screen.

In some embodiments, in every a line of the sensing unit of array arrangement, first sensing unit and two Second sensing unit constitutes a sensing unit group, and sensing unit group repeats ranks arrangement and forms sensing unit array.Therefore, In such embodiment, it is first sensing unit and two the second sensing units that minimum, which repeats sensing unit group,.

Referring to Fig. 2, in some embodiments, touch induction device 10 includes multiple emission electrodes 16 and multiple receptions Electrode 18.Controller 14 connects multiple emission electrodes 16 and multiple receiving electrodes 18.Multiple emission electrodes 16 receive electricity with multiple The spatial intersecting of pole 18, a cross-point one capacitive sensing unit 12 of formation of emission electrode 16 and receiving electrode 18.

In this way, multiple capacitive sensing units 12 can be formed, electricity can be changed by touching capacitive sensing unit 12 by finger Hold the capacitance of sensing unit 12, may thereby determine that the position that touch induction device 10 is touched.

Specifically, when finger touches touch induction device 10, the touched point of touch induction device 10 can be have impact on attached Coupling between nearly two electrodes, so that the capacitance between changing the cross-point of receiving electrode 18 and emission electrode 16, i.e., Change the capacitance of capacitive sensing unit 12.During the capacitance size for the capacitive sensing unit 12 for forming mutual capacitance in detection, hair Pumping signal is launched in radio pole 16, and the output signal of receiving electrode 18 can so obtain emission electrode 16 and receiving electrode 18 The size of the capacitance of cross-point, you can obtain the capacitance size of the two dimensional surface of whole touch induction device 10.According to tactile The two-dimentional capacitance variation amount data of induction installation 10 are touched, the coordinate of each touch point can be calculated.

In some embodiments, touch induction device 10 includes dielectric 19.Dielectric 19 is filled in transmitting electricity Between pole 16 and receiving electrode 18.

Specifically, in one example, megohmite insulant 19 can be as made by epoxy resin.Epoxy resin tool after solidification There are good physics, chemical property, its surface to metal and nonmetallic materials has excellent adhesive strength, and dielectric properties are good Good, deformation retract rate is small, and product size stability is good, and hardness is high, and pliability is preferable.

It is pointed out that it is this reality that the dielectric 19 of each capacitive sensing unit 12 in diagram, which separates setting, With a kind of new example.In other examples, the dielectric 19 between receiving electrode 18 and emission electrode 16 can be fabricated to one Individual overall insulating medium layer, receiving electrode 18 and emission electrode 16 are arranged on opposite two surfaces of insulating medium layer.

In some embodiments, the first sensing unit 122 and two the second sensing units 124 are located at line n, controller 14 are used for the control within the cycle is grounded positioned at the capacitive sensing unit 12 of the (n-1)th row and the (n+1)th row, wherein 1<N≤(k-1), k are Total line number of the capacitive sensing unit 12 of touch induction device 10, n and k are natural number.

In this way, the noise of the first inductance capacitance 122 and two the second inductance capacitances 124 can be reduced, so as to more accurate The position that touch induction device 10 is touched really is recognized, and then more improves precision and the sensitivity of touch induction device 10.

In some embodiments, referring to Fig. 3, the first sensing unit 122 and two the second sensing units 124 are located at the N rows, controller 14 is used for the control within the cycle and is grounded positioned at the capacitive sensing unit 12 of the (n-1)th row and the (n+1)th row, and control bit In the suspension joint of capacitive sensing unit 12 of the n-th -2 row, wherein 2<N≤(k-1), k are the capacitive sensing unit of touch induction device 10 12 total line number, n and k are natural number.

In this way, the noise of the first inductance capacitance unit 122 and two the second inductance capacitance units 124 can be reduced, so that The position that touch induction device 10 is touched further can be more accurately recognized, and then more improves touch induction device 10 Precision and sensitivity.

In some embodiments, contactor is connected with per a line capacitive sensing unit 12, controller 14 is used to control Contactor is disconnected to control the suspension joint of capacitive sensing unit 12, and controller 14 is used to control contactor closure to control electric capacity sense Unit 12 is answered to be grounded.

In this way, realizing suspension joint and the ground connection of capacitive sensing unit 12, the operand of reduction controller 14 can be made, reduced tactile Touch the cost of induction installation 10.

Specifically, in the utility model embodiment, touched between contactor connection controller 14 and receiving electrode 18 Induction installation 10 is touched, controller 14 controls the break-make of contactor, and when capacitive sensing unit 12 need to be grounded, contactor is closed Close, controller 14 can control the ground terminal that capacitive sensing unit 12 connects controller 14, and the ground terminal of controller 14 can connect touch The ground terminal for the electronic installation that induction installation 10 is applied.In some embodiments, contactor may be provided in controller 14, And a connection end (being, for example, some pin of controller 14) the connection receiving electrode 18 for passing through controller 14.

In some embodiments, referring to Fig. 3, the first sensing unit 122 is arranged positioned at jth, one of them second sensing Unit 124 is arranged positioned at jth -1, and another second sensing unit 124 is arranged positioned at jth+1, and controller 14 is used to control within the cycle The capacitive sensing unit 12 arranged positioned at jth+2 is grounded, wherein 2<J≤(m-2), m are the capacitive sensing list of touch induction device 10 Total columns of member 12, j and m are natural number.

In this way, being grounded by the capacitive sensing unit 12 for controlling jth+2 to arrange, the first sensing unit 122 and two can be reduced The noise of individual second sensing unit 124, so as to improve precision and the sensitivity of touch induction device 10.

Referring to Fig. 4, TX1 represents the timing diagram of one of them the second sensing unit 124, TX2 represents the first sensing unit 122 timing diagram, TX3 represents the timing diagram of another the second sensing unit 124.

In some embodiments, cycle T includes the first subcycle T1 and the second subcycle T2 sorted successively, controller 14 are used to control two the second sensing units 124 to charge in the first subcycle T1, two are controlled in second sub- cycle T 2 Second sensing unit 124 discharges.

In this way, a cycle T is divided into two sub- cycle Ts 1 and T2, and respectively to two second within T1 and T2 cycle The charging and discharging of sensing unit 124, can simplify control device 14 control process, reduce the cost of touch induction device 10.

Specifically, in the utility model embodiment, the first subcycle T1 and the second subcycle T2 are equal and be equal to 1/2 cycle T.In the utility model example, the emission electrode 16 of each column capacitance sensing unit 12 connects a discharge and recharge Switch, charge and discharge switch is electrically connected with controller 14.Controller 14 can control charge and discharge switch to act by software programming, And then realize the discharge and recharge of capacitive sensing unit.

Further, the first sensing unit 122 is in the case where charging always, to two the in the first subcycle T1 Two sensing units 124 are charged, and when finger touches touch induction device 10, the first sensing can be received by receiving electrode 18 The output signal that unit 122 and two the second sensing units 124 are expert at, for example, the voltage received is first voltage. Two the second sensing units 124 are discharged in two subcycles, for example, now controller 14 receives output by receiving electrode 18 The voltage of signal becomes smaller than the second voltage of first voltage.In this way, what controller 14 was received by contrasting in a cycle T Output signal changing value, can accurately determine the particular location that touch induction device 10 is touched.

Referring to Fig. 5, TX4 represents another timing diagram of one of them the second sensing unit 124, TX5 represents the first sense The timing diagram of unit 122 is answered, TX6 represents another timing diagram of another the second sensing unit 124.

Cycle T includes the first subcycle T3, the second subcycle T4 and the 3rd subcycle T5 sorted successively.Controller 14 is used In controlling two the second sensing units 124 to charge in the first subcycle T3, the control two second in second sub- cycle T 4 Sensing unit 124 discharges, and controls two the second sensing units 124 to charge in the 3rd subcycle T5.

In this way, a cycle T is divided into three sub- cycle Ts 3, T4 and T5, and respectively to two within T3, T4 and T5 cycle The individual charging and discharging of second sensing unit 124, can simplify control device 14 control process, reduce touch induction device 10 into This.

Specifically, in the utility model embodiment, the first subcycle T3, the second subcycle T4 and the 3rd subcycle T5 It is equal and be equal to 1/3 cycle T.In the utility model example, the emission electrode 16 of each column capacitance sensing unit 12 connects A charge and discharge switch is connect, charge and discharge switch is electrically connected with controller 14.Controller 14 can control charge and discharge by software programming Electric switch is acted, and then realizes the discharge and recharge of capacitive sensing unit 12.

Further, the first sensing unit 122 is in the case where charging always, to two the in the first subcycle T3 Two sensing units 124 are charged, and when finger touches touch induction device 10, the first sensing can be received by receiving electrode 18 The output signal that unit 122 and two the second sensing units 124 are expert at, for example, the voltage received is first voltage. Two the second sensing units 124 are discharged in two subcycle T4, for example, now controller 14 received by receiving electrode 18 it is defeated The voltage for going out signal becomes smaller than the second voltage of first voltage.To two the second sensing units 124 in the 3rd subcycle T5 Charging, when finger touches touch induction device 10, the first sensing unit 122 and two can be received by receiving electrode 18 The output signal that second sensing unit 124 is expert at, for example, the voltage received is tertiary voltage.In this way, controller 14 passes through The output signal changing value received in a cycle T is contrasted, the tool that touch induction device 10 is touched can be accurately determined Body position.

A kind of electronic installation of the utility model embodiment, including the as above touch induction device of any embodiment 10。

In the utility model embodiment, when user touches touch induction device 10, electronic installation passes through output The change amplitude of capacitance can judge user touch location quickly and exactly, so as to improve electronic installation touch Sensitivity and precision.

Specifically, electronic installation is as being portable electronic product or household formula electronic product.Wherein, portable electronic product It is such as various mobile terminals, for example, all kinds of suitable electronics such as mobile phone, tablet personal computer, notebook computer and Wearable product Product；Household formula electronic product is such as intelligent door lock, TV, refrigerator, all kinds of suitable electronic products of desktop computer.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means the tool with reference to the embodiment or example description Body characteristicses, structure, material or feature are contained at least one embodiment of the present utility model or example.In this specification In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description Levy, structure, material or feature can in an appropriate manner be combined in any one or more embodiments or example.

Any process described otherwise above or method description are construed as in flow chart or herein, represent to include Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process Point, and the scope of preferred embodiment of the present utility model includes other realization, wherein can not be by shown or discussion Order, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be by this The embodiment person of ordinary skill in the field of utility model is understood.

Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.

It should be appreciated that each several part of embodiment of the present utility model can use hardware, software, firmware or combinations thereof To realize.In the above-described embodiment, multiple steps or method can in memory and by suitable instruction be performed with storage The software or firmware that system is performed are realized.If for example, being realized with hardware, with another embodiment, can use Any one of following technology well known in the art or their combination are realized：With for realizing logic work(to data-signal The discrete logic of the logic gates of energy, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate Array (PGA), field programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each embodiment of the present utility model can with it is integrated in a processor, Can be that unit is individually physically present, can also two or more units be integrated in a module.It is above-mentioned integrated Module can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated mould If block in the form of software function module to realize and as independent production marketing or in use, can also be stored in terms of one In calculation machine read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (10)

1. a kind of touch induction device, it is characterised in that including：

Multiple capacitive sensing units, the multiple capacitive sensing unit is arranged in array, the multiple capacitive sensing unit bag The first sensing unit and two the second sensing units are included, first sensing unit and described two second sensing units are located at same A line, and first sensing unit is adjacently located between described two second sensing units；

Controller, the controller is electrically connected with the multiple capacitive sensing unit, and in a cycle, control to be described First sensing unit charges, and controls described two second sensing units first to be charged within the cycle and discharges afterwards；

The controller is used for output signal and the analysis for receiving first sensing unit and described two second sensing units The output signal is to judge whether first sensing unit is touched.

2. touch induction device as claimed in claim 1, it is characterised in that the touch induction device includes multiple transmitting electricity Pole and multiple receiving electrodes, the controller connect the multiple emission electrode and the multiple receiving electrode, the multiple hair Radio pole and the multiple receiving electrode spatial intersecting, the cross-point formation one of the emission electrode and the receiving electrode The individual capacitive sensing unit.

3. touch induction device as claimed in claim 2, it is characterised in that the touch induction device includes dielectric, The dielectric is filled between the emission electrode and the receiving electrode.

4. touch induction device as claimed in claim 1, it is characterised in that first sensing unit and described two second Sensing unit is located at line n, and the controller is used for the electric capacity sense of the control positioned at the (n-1)th row and the (n+1)th row within the cycle Unit is answered to be grounded, wherein 1<N≤(k-1), k are total line number of the capacitive sensing unit of the touch induction device, and n and k are certainly So count.

5. touch induction device as claimed in claim 1, it is characterised in that first sensing unit and described two second Sensing unit is located at line n, and the controller is used for the electric capacity sense of the control positioned at the (n-1)th row and the (n+1)th row within the cycle Unit is answered to be grounded, and control is positioned at the capacitive sensing unit suspension joint of the n-th -2 row, wherein 2<N≤(k-1), k touch to be described Total line number of the capacitive sensing unit of induction installation, n and k are natural number.

6. touch induction device as claimed in claim 5, it is characterised in that capacitive sensing unit described in per a line is connected with electricity Way switch, the controller is used to control the contactor to disconnect controlling the capacitive sensing unit suspension joint, the control Device is used to control the contactor closure to control the capacitive sensing unit to be grounded.

7. touch induction device as claimed in claim 1, it is characterised in that first sensing unit is arranged positioned at jth, wherein One second sensing unit is arranged positioned at jth -1, and another described second sensing unit is arranged positioned at jth+1, the controller For the capacitive sensing unit ground connection that control is arranged positioned at jth+2 within the cycle, wherein 2<J≤(m-2), m are described Total columns of the capacitive sensing unit of touch induction device, j and m are natural number.

8. touch induction device as claimed in claim 1, it is characterised in that the cycle includes the first son week sorted successively Phase and the second subcycle, the controller be used to controlling in first subcycle charging of described two second sensing units, Described two second sensing units are controlled to discharge in second subcycle.

9. touch induction device as claimed in claim 8, it is characterised in that the cycle includes described first sorted successively Subcycle, second subcycle and the 3rd subcycle, the controller are used to control described two in first subcycle Individual second sensing unit charges, controls described two second sensing units to discharge in second subcycle, the described 3rd The described two second sensing unit chargings of control in subcycle.

10. a kind of electronic installation, it is characterised in that including the touch induction device as described in claim any one of 1-9.