CN102902433B - Touch detection method and touch control device - Google Patents

Touch detection method and touch control device Download PDF

Info

Publication number
CN102902433B
CN102902433B CN201110459333.7A CN201110459333A CN102902433B CN 102902433 B CN102902433 B CN 102902433B CN 201110459333 A CN201110459333 A CN 201110459333A CN 102902433 B CN102902433 B CN 102902433B
Authority
CN
China
Prior art keywords
electrode
sensing unit
touch
capacitance
self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201110459333.7A
Other languages
Chinese (zh)
Other versions
CN102902433A (en
Inventor
李振刚
黄臣
杨云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Semiconductor Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201110459333.7A priority Critical patent/CN102902433B/en
Publication of CN102902433A publication Critical patent/CN102902433A/en
Application granted granted Critical
Publication of CN102902433B publication Critical patent/CN102902433B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention provides a touch detection method and a touch control device. The touch detection method includes applying high-level signals on a first electrode of one of sensing units, earthing a second electrode so as to charge for the first time; applying high-level signals high-level signals to the first electrode and the second electrode so as to charge for the second time; detecting from the first electrode and the second electrode correspondingly so as to obtain a first detection change value between the first charging time and the second charging time, and discharging self-capacitance for the first time; applying high-level signals on the first electrode, earthing the second electrode so as to charge for the third time; earthing the first electrode and the second electrode so as to discharge for the second time; detecting from the first electrode and the second electrode correspondingly so as to obtain a second detection change value between the third charging time and the second discharging time; and computing a touch position according to the first detection change value and the second detection change value.

Description

Touch detecting method and contactor control device
Technical field
The present invention relates to electronic device design and manufacturing technology field, particularly to a kind of touch detecting method and touch-control dress Put.
Background technology
At present the range of application of touch-screen is from conventional ATM (automatic teller machine), minority's business market such as industrial computer, It is rapidly spread to mobile phone, pda (personal digital assistant), gps (global positioning system), pmp (mp3, mp4 etc.), or even flat board electricity The mass consumption electronic applications such as brain.Have the advantages that touch control operation is simple, convenient, hommization, therefore touch-screen for touch-screen It is expected to become the optimal interface of human-computer interaction and be widely applied in a portable device rapidly.
Capacitance touch screen is typically divided into self-capacitance and mutual capacitance two class.As shown in figure 1, being common in the art one Plant the structure chart of self-capacitance touch screen.This self-capacitance touch screen mainly has the diamond structure sensing unit 100 ' and 200 ' of bilayer, Its Cleaning Principle is that x-axis and y-axis are scanned respectively, if the capacitance variations in certain crosspoint is detected beyond preset range, Then by the crosspoint of this row and column as touch coordinate.Although preferably, often there's something fishy for the linearity of this self-capacitance touch screen Point occurs it is difficult to realize multiple point touching.Further, since adopting bilayer screen, also resulting in structure and cost is significantly increased, and water chestnut Shape structure occurs coordinate drift in the case of capacitance change very little, is affected greatly by external interference.
As shown in Figure 2 a, be another kind of self-capacitance touch screen common in the art structure chart.This self-capacitance touches Screen adopts triangular pattern screen structure.This self-capacitance touch screen include substrate 300 ', be arranged on substrate 300 ' multiple three The multiple electrodes 500 ' that angular sensing unit 400 ' is connected with each triangle sensing unit 400 '.As shown in Figure 2 b, it is triangle The Cleaning Principle of shape self-capacitance touch screen.As illustrated, ellipse representation finger, s1, s2 represent finger and two triangle sensings The contact area of unit.In the lower left corner, then abscissa x=s2/ (s1+s2) * p, wherein, p is resolution ratio to false coordinate initial point.When When finger moves right, because s2 is not linear increase, so there is a deviation in x coordinate.Can be seen that mesh from above-mentioned principle Front triangle sensing unit is single-ended detection, that is, only from an angle detecting, then calculates the seat of both direction by algorithm Mark.Although this self-capacitance touch screen structure is more simple, the capacitive sensing not being directed to screen is optimized, capacitance variations Amount is little, thus leading to signal to noise ratio inadequate.Further, since this sensing unit is triangle, when finger transverse shifting, area is not Linear increase, therefore the linearity is poor, result in coordinate calculating and shifts, the linearity is not good.
Additionally, this capacitive sensing unit output capacitance variable quantity very little, reach flying method level, the depositing of its cable stray capacitance Measuring circuit is being put forward higher requirement.And, stray capacitance can with temperature, position, inner electric field and outer electric field distribution etc. many because Element affects and changes, and interference even floods measured capacitance signal.Additionally, for individual layer electric capacity, due to vcom level signal Impact inductance capacitance can be formed with serious interference, wherein, vcom level signal is to prevent lcd screen liquid crystal aging Do not stop the level signal overturning.
Content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency, particularly solves or avoid the occurrence of existing electricity certainly Hold the disadvantages mentioned above in touch-screen.
Embodiment of the present invention first aspect proposes a kind of touch detecting method of touch-screen, and described touch-screen includes multiple Disjoint sensing unit, the two ends of each sensing unit are respectively provided with first electrode and second electrode, methods described include with Lower step: apply high level signal and by second electrode to the first electrode of one of the plurality of sensing unit sensing unit Ground connection carries out charging for the first time with the self-capacitance one sensing unit being produced when one sensing unit is touched； Apply high level signal to the first electrode of one of the plurality of sensing unit sensing unit and second electrode, or, to One of described first electrode and described second electrode apply high level signal and by described first electrode and described second electricity Another disconnection in extremely, to carry out second charging to described self-capacitance；From corresponding described first electrode or second electrode Detected with the first detection changing value between obtaining described first time charging and charging for described second, and to described certainly electric Hold and carry out discharging for the first time；Apply high level signal to the first electrode of one of the plurality of sensing unit sensing unit simultaneously Described second electrode is grounded, is charged so that described self-capacitance is carried out with third time；First electrode by one sensing unit With second electrode ground connection, or, by one of described first electrode and described second electrode ground connection and by described first electrode With in described second electrode another disconnection, so that second electric discharge is carried out to described self-capacitance；From corresponding described first electricity Pole or second electrode are detected with the second detection changing value between obtaining described third time charging and discharging for described second； Described self-capacitance to described first electrode first is calculated according to the described first detection changing value and the second detection changing value The proportionate relationship of the resistance and described self-capacitance second resistance to described second electrode；And according to described first resistor and Proportionate relationship between described second resistance determines touch location.
It is noted that the process that above-mentioned first time charges and second is charged being charged with third time and discharging for second Process order intermodulation, equally can realize the present invention, as long as causing the charge variation of self-capacitance.For example, for the first time Charge and second charging be different to the charging voltage of self-capacitance, therefore can cause the charge variation of self-capacitance, the present invention according to The charge variation of self-capacitance can obtain the proportionate relationship of corresponding first resistor and second resistance.
Embodiment of the present invention second aspect also proposed a kind of contactor control device, comprising: substrate；Multiple disjoint sensings are single Unit, the plurality of sensing unit is formed on described substrate, and the two ends of each sensing unit be respectively provided with first electrode and Second electrode；Touch-screen control chip, described touch-screen control chip includes charging module, discharge module and detection module, its In, described charging module, in first time charging process, to the of one of the plurality of sensing unit sensing unit One electrode apply high level signal and by second electrode ground connection with when one sensing unit is touched to one sense The self-capacitance that unit produces is answered to carry out charging for the first time；In second charging process, in the plurality of sensing unit one The first electrode of individual sensing unit and second electrode apply high level signal, or, in described first electrode and second electrode One applying high level signal and by described first electrode and second electrode another disconnection, to enter to described self-capacitance Row charges for second；And in third time charging process, to the first of one of the plurality of sensing unit sensing unit Electrode applies high level signal and is grounded described second electrode, is charged so that described self-capacitance is carried out with third time, described electric discharge Module, for carrying out to described self-capacitance after described self-capacitance being charged for second in described charging module discharging for the first time, And after described charging module charges to described self-capacitance third time, by the first electrode of one sensing unit and the Two electrodes ground connection, or, by one of described first electrode and described second electrode ground connection and by described first electrode and institute Another stated in second electrode disconnects to carry out second electric discharge to described self-capacitance, and described detection module, for from right The described first electrode answered or second electrode are detected and are charged and described second charging between with obtaining described first time First detection changing value, and from corresponding described first electrode or second electrode detected with obtain described third time charge and The second detection changing value between discharging for described second, and control and computing module, for described charging module, electric discharge mould Block and detection module are controlled, and it is extremely described to calculate described self-capacitance according to the first detection changing value and the second detection changing value Proportionate relationship between first resistor between the first electrode and described self-capacitance second resistance to described second electrode, And touch location is determined according to the proportionate relationship between described first resistor and described second resistance.
The embodiment of the present invention third aspect also proposed a kind of portable electric appts, including touch-control as above dress Put.
Sensing unit in the Touch-screen testing equipment of the embodiment of the present invention adopts double-end monitor, i.e. the two ends of sensing unit It is respectively provided with electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, when carrying out touching detection by sense Unit itself is answered to can achieve the positioning to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between first resistor and second resistance Fixed, therefore for current rhombus or triangular design, due to when determining touch location, self-capacitance need not be calculated Size, and the size of self-capacitance does not interfere with the precision of touch location, thus improve certainty of measurement, improves the linearity.This Outward, because in the Part I of the embodiment of the present invention, Part II and Part III, any one can be all the square of regular shape Shape, it is also possible to further improve the linearity therefore for the irregular shape such as current rhombus or triangle.
The embodiment of the present invention by level signal is applied to the electrode at sensing unit two ends, if this sensing unit is touched Touch, touching object (such as finger) then can form self-capacitance with this sensing unit, and the therefore present invention passes through the level signal applying This self-capacitance can be charged, and determine the touch on touch-screen according to the proportionate relationship between first resistor and second resistance Position.And detection mode self-capacitance being charged twice by the embodiment of the present invention, some immeasurablel to offset Physical parameter or the measurement reducing physical quantity, thus on the premise of ensureing detection speed, effectively improve accuracy of detection.
The embodiment of the present invention proposes a kind of self-capacitance detection mode of novelty, when sensing unit is touched, touch point This sensing unit can be divided into two resistance, thus considering that this two resistance just can be true while carrying out self-capacitance detection Determine position on this sensing unit for the touch point.The structure of the embodiment of the present invention is simple, and for a sensing unit, Detected in charge or discharge, rc constant, time-consuming raising efficiency can not only be reduced, and can also ensure that coordinate Will not offset.Additionally, the embodiment of the present invention can also effectively improve the to-noise ratio of circuit, reduce circuit noise, improve the line of induction Property degree.And, due to being charged to the sensing unit being touched in detection process, small current, energy therefore wherein can be produced The impact to the self-capacitance that sensing unit in touch-screen produces for enough vcom level signals of elimination well, therefore can correspondingly disappear Except screenmask layer and concerned process steps, such that it is able to reduces cost further while enhancing antijamming capability.
The aspect that the present invention adds and advantage will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments Substantially and easy to understand, wherein:
Fig. 1 is a kind of structure chart of self-capacitance touch screen common in the art；
Fig. 2 a is the structure chart of another kind of self-capacitance touch screen common in the art；
Fig. 2 b is the detection principle diagram of another kind of self-capacitance touch screen common in the art；
Fig. 3 is the Cleaning Principle schematic diagram of embodiment of the present invention contactor control device；
Fig. 4 is the touch detecting method flow chart of the embodiment of the present invention；
Fig. 5 is the schematic diagram that touched of rectangle sensing unit of the embodiment of the present invention；
Fig. 6 a is the sensing unit structure chart of one embodiment of the invention；
Fig. 6 b is the sensing unit structure chart of one embodiment of the invention；
Fig. 7 a is another embodiment of the present invention Touch-screen testing equipment structure chart；
Fig. 7 b is another embodiment of the present invention touch screen detection device structure chart；
Schematic diagram when Fig. 8 is touched for the sensing unit of the embodiment of the present invention；
Fig. 9 a is further embodiment Touch-screen testing equipment structure chart of the present invention；
Fig. 9 b is further embodiment touch screen detection device structure chart of the present invention；
Schematic diagram when Figure 10 is touched for the sensing unit of the embodiment of the present invention；
Figure 11 is the contactor control device schematic diagram of one embodiment of the invention；
Figure 12 is the structure chart of embodiment of the present invention touch-screen control chip.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The embodiment of the present invention proposes a kind of self-capacitance detection mode of novelty, when sensing unit is touched, touch point This sensing unit can be divided into two resistance, consider that this two resistance are assured that while carrying out self-capacitance detection tactile Touch the position a little on this sensing unit.As shown in figure 3, the Cleaning Principle schematic diagram for embodiment of the present invention contactor control device.When When finger touches this sensing unit, will be equivalent to for this sensing unit to be divided into two resistance, the resistance of this two resistance with touch The position touched a little is related.For example, as described in Figure, when touch point and first electrode are nearer, then resistance r1 is just less, and resistance r2 With regard to larger；Conversely, when nearer with second electrode when touch point, then resistance r1 is just larger, and resistance r2 is just less.Therefore, this Bright by position on this sensing unit for the touch point is assured that to the detection of resistance r1 and r2.In embodiments of the invention In, detection resistance r1 and r2 in several ways, for example can be by detecting the current detecting change of first electrode and second electrode Value, self-capacitance detection changing value, level signal detection one or more of changing value and charge variation amount, thus according to these Detection changing value obtains resistance r1 and r2.And the present invention pass through the self-capacitance being formed by touch point charged twice to Some immeasurablel physical parameters that disappear or the measurement reducing physical quantity, improve certainty of measurement.
It should be noted that in an embodiment of the present invention, the function phase of above-mentioned first electrode and second electrode is same, and two Person can exchange, and therefore in the above-described embodiments, both can also can detect from second electrode from first electrode detection, as long as energy Meet and need electric current through first resistor and this requirement of second resistance when charging, discharging or detecting.
In an embodiment of the present invention, corresponding voltage can be applied to multiple sensing units successively in the way of scanning, Can also be detected successively in the way of scanning in detection simultaneously.
As shown in figure 4, being the touch detecting method flow chart of the embodiment of the present invention, this flow chart combines former shown in Fig. 3 Reason figure together illustrates.The method comprises the following steps:
Step s401, applies high level signal and by the to the first electrode of one of multiple sensing units sensing unit Two electrode ground connection carry out charging for the first time with a self-capacitance sensing unit being produced when a sensing unit is touched.? In this embodiment, apply high level signal vcc to first electrode.
If now this sensing unit is touched by finger or other objects, this sensing unit will produce self-capacitance c1 (with reference to Fig. 3), therefore the high level signal vcc by applying can be charged to self-capacitance, is now applied on self-capacitance Voltage be v2=vccr2/ (r1+r2).Additionally, in an embodiment of the present invention, by the charging to self-capacitance, can also carry The accuracy of detection of high self-capacitance.
In one embodiment of the invention, if this sensing unit is not touched, subsequently will be unable to detect certainly The presence of electric capacity, therefore can determine whether that it is not touched.
Step s402, applies high level signal to the first electrode of a sensing unit and second electrode, or, to first One of electrode and second electrode apply high level signal and by another disconnection in first electrode and second electrode, with right Self-capacitance carries out second charging.
In embodiments of the present invention, high level signal can all be applied to first electrode and second electrode；Or, to the first electricity Pole applies high level signal, and second electrode is disconnected；Or, apply high level signal to second electrode, and by first electrode Disconnect.In addition it is noted that the high level signal due to applying is known quantity, therefore the high level signal being applied twice is permissible Identical or differ, all do not affect derivation.In this embodiment, apply and step to first electrode and/or second electrode Identical high level signal vcc in rapid s401.The voltage being now applied on self-capacitance is vcc.
Step s403, is detected from corresponding first electrode or second electrode and is charged for the first time with obtaining and fill for the second time The first detection changing value between electricity, and self-capacitance is carried out discharge for the first time.In an embodiment of the present invention, described correspondence Refer to situations below, for example, when the first electrode of a sensing unit and second electrode all connect high level signal and are charged, All can be detected from first electrode and second electrode；As connect high level signal when first electrode, during second electrode disconnection, then only Can detect from first electrode；Conversely, when second electrode connects high level signal, and first electrode disconnects, then can only be from second electrode Detection.
In an embodiment of the present invention, if second mode charging different with the mode of charging for the first time so that it may draw Play the change of the quantity of electric charge in self-capacitance.Additionally, needing self-capacitance is discharged after having detected so that once discharge and recharge on carrying out Process.
In this example, it is assumed that the first detection changing value is δ q1.Below with the first detection changing value and the second detection Changing value is to be described as a example charge variation amount, but can between reaction resistance r1 and r2 relation other detection changes Value, for example level signal, electric current etc. also all can adopt.
Wherein, δ q1=(vcc-v2) c1=vccc1r1/ (r1+r2) (1)
Wherein, v2=vccr2/ (r1+r2), when now charging for the first time, the voltage of self-capacitance is v2, this self-capacitance voltage Detection can obtain when charging first time.
Step s404, applies high level signal and by the to the first electrode of one of multiple sensing units sensing unit Two electrode ground connection are charged so that self-capacitance is carried out with third time.In this embodiment, apply high level signal vcc to first electrode, Self-capacitance can be charged by the high level signal vcc applying, the voltage being now applied on self-capacitance is v2= Vccr2/ (r1+r2), the therefore quantity of electric charge on self-capacitance are v2c1=vccc1r2/ (r1+r2).
Step s405, by the first electrode of a sensing unit and second electrode ground connection, or, by first electrode and second One of electrode ground connection simultaneously disconnects, another in first electrode and second electrode to be put for the second time to self-capacitance Electricity.
Specifically, the first electrode of a sensing unit and second electrode all can be grounded, or, first electrode is connect Ground, and second electrode disconnects, or, second electrode is grounded, and first electrode is disconnected, to be put for the second time to self-capacitance Electricity.
Step s406, is detected from corresponding first electrode or second electrode to obtain third time charging and to put for the second time The second detection changing value between electricity.
In this example, it is assumed that the second detection changing value is δ q2.Second detection changing value need to adopt and step s403 In first detection changing value identical detection changing value, be charge variation amount in embodiments of the present invention.Similarly, exist This described " corresponding " is also relative concept, such as when discharging first time, if second electrode disconnects, can only be from first Electrode is detected.
Wherein, δ q2=v2c1=vccc1r2/ (r1+r2) (2)
Step s407, calculates self-capacitance to first electrode according to the first detection changing value and the second detection changing value The proportionate relationship of the first resistor and self-capacitance second resistance to second electrode, and according to first resistor and second resistance Proportionate relationship determines touch location.In one embodiment of the invention, by the self-capacitance electric charge represented by formula (1) and (2) Variable quantity can calculate the proportionate relationship of r1 and r2, due to the regular linear relation of figure, then can calculate touch point institute Abscissa position, and self-capacitance c1 be located position.
In an embodiment of the present invention, r1/r2=δ q1/ δ q2, therefore by the embodiment of the present invention be achieved with r1 and Proportionate relationship between r2.
In an embodiment of the present invention, if sensing unit is door shape sensing unit or l shape sensing unit, pass through first Ratio between resistance and second resistance just can determine that touch location on the touchscreen, carries out below with reference to specific example Describe in detail.But in other embodiments of the invention, if sensing unit is rectangle sensing unit or snakelike (but sees quite on the whole In rectangle) sensing unit, then step s407 can only calculate the touch location on touch-screen first direction, this first direction can To be the length direction (horizontal direction of such as touch-screen) of sensing unit.
If sensing unit is rectangle sensing unit or snakelike (but see on the whole and be equivalent to rectangle) sensing unit, also need Touch location in a second direction is determined according to the position of sensing unit.In one embodiment of the invention, first party To the length direction for sensing unit, second direction is the direction perpendicular to sensing unit, and sensing unit is horizontally disposed with or vertically Setting.
It is noted that above-mentioned first and second charging process (step s401- step s403) and third time charge and discharge process The order of (step s404- step s406) first can carry out step s404- step s406 with intermodulation, then carries out step s401- step Rapid s403, similarly without departing from the thought of the present invention, is included within protection scope of the present invention.
In an embodiment of the present invention, self-capacitance detection module can be the self-capacitance detection module being currently known, and therefore exists This repeats no more.
In one embodiment of the invention, if using two self-capacitance detection modules, then because two from electricity Hold detection module and can share multiple devices, thus without the overall power increasing chip.
In one embodiment of the invention, sensing unit can take different shapes.Preferably, multiple disjoint senses Unit is answered to be located at same layer, thus in the case of ensureing accuracy of detection, can be greatly cost-effective.
As shown in figure 5, the schematic diagram that touched of rectangle sensing unit for the embodiment of the present invention.This sensing unit is square Shape, and multiple sensing unit is parallel to each other with the first direction of described touch-screen, therefore touch location is in a first direction Touch location.
As shown in Figure 6 a, be one embodiment of the invention sensing unit structure chart.This sensing unit 200 includes multiple A part 230 and multiple parallel Part II 240, wherein, pass through Part II 240 and are connected between adjacent Part I 230, To form multiple the first alternately arranged grooves 1000 and the second groove 2000, wherein, multiple first grooves 1000 and multiple the The opening direction of two grooves 2000 is contrary.Preferably, Part II 240 arranges in the first direction.An enforcement in the present invention In example, multiple Part I 230 can be parallel to each other it is also possible to not parallel.And it is preferable that Part II 240 is rectangle.? In the other embodiment of the present invention, Part I 230 is alternatively rectangle, but Part I 230 can be also other various shapes.? In this embodiment, increase the impedance of resistance by Part I 230, thus increasing the impedance of sensing unit 200 so that first is electric Resistance and second resistance are more easy to detect, further improve accuracy of detection.And in such an embodiment, it is preferable Part II 240 it Between interval equal such that it is able to equably be improved from the impedance of sensing unit, to improve accuracy of detection.The present invention's In one embodiment, first direction is the length direction of sensing unit 200, and second direction is perpendicular to the side of sensing unit 200 To specifically, sensing unit 200 can be horizontally disposed with or be vertically arranged.
In an embodiment of the present invention, the size of sensing unit 200 length direction is basically identical with the size of substrate, therefore Touch control device structure is simple, easy to manufacture, and low cost of manufacture.
In one embodiment of the invention, first electrode 210 and second electrode 220 respectively with multiple Part I 230 In two Part I be connected.But in another embodiment of the present invention, first electrode 210 and 220 points of second electrode It is not connected with two Part II in multiple Part II 240, as shown in Figure 6 b.
And, in an embodiment of the present invention, it is mutually perpendicular between Part II 240 and Part I 230, therebetween Angle be preferably 90 degree, also other angles optional certainly.As shown in Figure 6 a, this sensing unit 200 passes through multiple second Multiple Part I 230 are joined end to end by points 240, and the first electrode 210 of sensing unit 200 and second electrode 220 are respectively with two The Part I 230 at end is connected.From overall structure, this sensing unit 200 is the rectangle with high length to width aspect ratio.This needs Illustrate is although arranging sensing unit 200 along x-axis in Fig. 6 a, it should be understood by those skilled in the art that should Sensing unit 200 also can be arranged along y-axis.Noise can be efficiently reduced by the structure of this sensing unit, improve the line of sensing Property degree.
As shown in Figure 7a, be another embodiment of the present invention sensing unit structure chart.In this embodiment, this sensing list Unit 200 can be different for the length of each sensing unit 200 in door shape, and multiple sensing unit 200, multiple sensing units 200 it Between mutually nested.Wherein, each described sensing unit includes Part III 250, disjoint Part IV 260 and Part V 270.Preferably, Part III 250 is parallel with the first side 110 of substrate 100, Part IV 260 and Part V 270 and substrate 100 the second side 120 is parallel, and Part IV 260 one end is connected with one end of Part III 250, one end of Part V 270 It is connected with the other end of Part III 250.The other end of the Part IV 260 of sensing unit 200 has first electrode 210, the The other end of five parts 270 has second electrode 220, and wherein, each first electrode 210 and second electrode 220 are all and touch-screen The corresponding pin of control chip is connected.
In an embodiment of the present invention, the so-called mutually nested sensing unit referring to outside partly surrounds the sensing of inner side Unit, for example as shown in Figure 7a, so can reach larger coverage rate while ensureing precision, and reduce answering of computing Miscellaneous degree, improves the response speed of touch-screen.Certainly those skilled in the art also can adopt other mutually embedding according to the thought of Fig. 7 a The mode of set arranges sensing unit.In one embodiment of the invention, the Part III 250 of each sensing unit 200 and its The Part III 250 of his sensing unit 200 is parallel, Part IV 260 and other sensing units 200 of each sensing unit 200 Part IV 260 parallel, the Part V 270 of the Part V of each sensing unit 200 270 and other sensing units 200 Parallel.In one embodiment of the invention, the Part III 250 of sensing unit 200, Part IV 260 and Part V 270 In at least one be rectangle it is preferable that Part III 250, Part IV 260 and Part V 270 are rectangle.In this enforcement In example, due to rectangular configuration figure rule, therefore in finger lateral or longitudinal movement, the linearity is good, additionally, two rectangle knots Spacing between structure is identical, is easy to calculate, thus improving calculating speed.
In one embodiment of the invention, the Part IV 260 of each sensing unit 200 and Part V 270 length Equal.
In one embodiment of the invention, substrate 100 be rectangle, first when 110 and second 120 between mutually vertical Directly, and it is mutually perpendicular between Part IV 260 and Part III 250, mutually vertical between Part V 270 and Part III 250 Directly.
In one embodiment of the invention, the spacing phase between the Part III 250 of two neighboring sensing unit 200 Deng the spacing between the Part IV 260 of two neighboring sensing unit 200 is equal, the 5th of two neighboring sensing unit 200 Divide the spacing between 270 equal.Thus can by multiple sensing units 200 to the first of touch-screen when 110 and second 120 are evenly dividing, thus improving arithmetic speed.Certainly in other embodiments of the invention, two neighboring sensing unit 200 Spacing between Part III 250 also can be unequal, or, between the Part IV 260 of two neighboring sensing unit 200 between Away from also can be unequal, as shown in Figure 7b.For example, because user often touches the centre of touch-screen, therefore can will touch Spacing between the sensing unit in screen centre reduces, thus improving the accuracy of detection in centre.
In one embodiment of the invention, multiple sensing units 200 are symmetrical with respect to the central shaft y of substrate 100, such as scheme Shown in 7a, central shaft y is perpendicular to Part III 250, thus being more beneficial for improving precision.
As shown in Figure 7a, in this embodiment, the first electrode 210 of sensing unit 200 and second electrode 220 are respectively positioned on base On first side 110 of plate 100.In this embodiment, detect after the touch location on sensing unit, you can obtain and touching Touch the touch location on screen.
It should be noted that above-mentioned Fig. 7 a is the present invention preferably embodiment, it is obtained in that larger coverage rate, but The other embodiment of the present invention can carry out some equivalent changes to Fig. 7 a, and such as Part IV 260 and Part V 270 are permissible It is uneven.
Sensing unit in the embodiment of the present invention, using the structure of similar door shape, is not only simple in structure, and is easy to make, owns , all with one side, design is convenient for lead, reduces silver paste cost and makes easily, has very great help to reducing production cost.
As shown in figure 8, being the schematic diagram when sensing unit of the embodiment of the present invention is touched.As it can be observed in the picture that first electrode For 210, second electrode is 220, touch location close to second electrode it is assumed that the length of sensing unit is 10 unit lengths, And sensing unit is evenly divided into 10 parts, wherein, the length of sensing unit Part III 250 is 4 unit lengths, and sensing is single The length of first Part IV 260 and Part V 270 is 3 unit lengths.Through detection, know first resistor and second resistance Ratio be 4:1, that is, first electrode 210 is whole sensing unit length to the length (being embodied by first resistor) of touch location 80%.In other words, touch point be located at first electrode 210 8 unit lengths position, know, touch point be located at away from The position of 2 unit lengths away from second electrode 220.When finger is mobile, touch location can accordingly move, and therefore passes through to touch The conversion of position just can determine whether the corresponding motion track of finger, thus judging the input instruction of user.
The calculation that can be seen that the present invention from the example above of Fig. 8 is very simple, tactile therefore, it is possible to be greatly enhanced Touch the reaction speed of screen detection.In an embodiment of the present invention, usual finger or other objects can touch multiple sensing units, this When can first obtain the touch location of each in the multiple sensing units being touched at this, then calculated by way of being averaging Final touch location on the touchscreen.
As illustrated in fig. 9, it is further embodiment Touch-screen testing equipment structure chart of the present invention.A reality in the present invention Apply in example, the length of multiple sensing units is gradually increased, and each described sensing unit includes Part VI 280 and Part VII 290.One end of Part VI 280 has a first electrode 210, the other end phase of one end of Part VII 290 and Part VI 280 Connect, and the other end of Part VII 290 has second electrode 220.
Specifically, Part VI 280 is parallel with the first side 110 of substrate 100, Part VII 290 and the second of substrate 100 Side 120 is parallel, and first is 120 adjacent when 110 and second.And each first electrode 210 and second electrode 220 are all and touch-screen The corresponding pin of control chip is connected.
In a preferred embodiment of the invention, the Part VI 280 of each sensing unit 200 and other sensing units 200 Part VI 280 parallel, the Part VII 290 of the Part VII of each sensing unit 200 290 and other sensing units 200 Parallel.The coverage rate to touch-screen for the sensing unit can be effectively improved by such setting.An enforcement in the present invention Example in, in the Part VI 280 of sensing unit 200, Part VII 290 at least one be rectangle it is preferable that Part VI 280, Part VII 290 is rectangle.In this embodiment, due to rectangular configuration figure rule, therefore laterally or longitudinally move in finger When dynamic, the linearity is good, additionally, the spacing between two rectangular configuration is identical, is easy to calculate.
Sensing unit in the touch screen detection device of the embodiment of the present invention adopts double-end monitor, i.e. the two ends of sensing unit It is respectively provided with electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, when carrying out touching detection by sense Unit itself is answered to can achieve the positioning to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between first resistor and second resistance Fixed, therefore for current rhombus or triangular design, due to when determining touch location, self-capacitance need not be calculated Size, and the size of self-capacitance does not interfere with the precision of touch location, the dependence to self-capacitance accuracy of detection reduces, thus improving Certainty of measurement, improves the linearity.Further, since the Part V 270 of the embodiment of the present invention, Part VI 280 and the 7th In part 290, any one can be all the rectangle of regular shape, therefore irregular with respect to current rhombus or triangle etc. It is also possible to further improve the linearity for shape.
In one embodiment of the invention, the Part VI 280 of each sensing unit and Part VII 290 length phase Deng such that it is able to improve arithmetic speed.Preferably, substrate 100 be rectangle, first when 110 and second 120 between mutually vertical Directly.First 120 is mutually perpendicular to when 110 and second, not only makes sensing unit design more regular, for example, makes sensing unit Part VI 280 and Part VII 290 between be also mutually perpendicular to, thus improving coverage rate to touch-screen, and the 6th Divide and be mutually perpendicular between 280 and Part VII 290 to improve the linearity of detection.
In one embodiment of the invention, the spacing between two neighboring sensing unit 200 is equal.Thus can lead to Cross multiple sensing units 200 120 to be evenly dividing when 110 and second to the first of touch-screen, thus improving arithmetic speed.
Certainly in another embodiment of the present invention, the spacing between two neighboring sensing unit 200 can not also wait, As shown in figure 9b, for example because user often touches the centre of touch-screen, therefore can be by the sense at touch screen center position The spacing between unit is answered to reduce, thus improving the accuracy of detection in centre.
As illustrated in fig. 9, in this embodiment, the first electrode 210 of sensing unit 200 is located at the first side of substrate 100 On 110, second electrode 220 is located on the second side 120 of substrate 100, and first 120 is mutually perpendicular to when 110 and second.At this In embodiment, detect after the touch location on sensing unit, you can obtain the touch location on touch-screen.
As shown in Figure 10, it is schematic diagram when the sensing unit of the embodiment of the present invention is touched.As can be seen from Figure 10, the first electricity Extremely 210, second electrode is 220, and touch location is close to second electrode 220 it is assumed that the length of sensing unit is 10 units Length, and sensing unit is evenly divided into 10 parts, wherein, the length of the Part VI 280 of sensing unit is that 5 units are long Degree, the length of the Part VII 290 of sensing unit is 5 unit lengths.Through detection, know first resistor and second resistance it Than for 9:1, that is, first electrode 210 is whole sensing unit length to the length (being embodied by first resistor) of touch location 90%.In other words, touch point be located at first electrode 210 9 unit lengths position, know, touch point be located at away from The position of 1 unit length away from second electrode 220.
The calculation that can be seen that the present invention from the example above of Figure 10 is very simple, therefore, it is possible to be greatly enhanced The reaction speed of touch-screen detection.
In one embodiment of the invention, multiple sensing units 200 are located at same layer, and therefore only needing to one layer of ito is Can, thus while ensureing precision, greatly reducing manufacturing cost.
Sensing unit in the touch screen detection device of the embodiment of the present invention adopts double-end monitor, i.e. the two ends of sensing unit It is respectively provided with electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, when carrying out touching detection by sense Unit itself is answered to can achieve the positioning to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between first resistor and second resistance Fixed, therefore for current rhombus or triangular design, due to when determining touch location, self-capacitance need not be calculated Size, and the size of self-capacitance does not interfere with the precision of touch location, the dependence to self-capacitance accuracy of detection reduces, thus improving Certainty of measurement, improves the linearity.Further, since the Part V 270 of the embodiment of the present invention, Part VI 280 and the 7th In part 290, any one can be all the rectangle of regular shape, therefore irregular with respect to current rhombus or triangle etc. It is also possible to further improve the linearity for shape.
In sum, the embodiment of the present invention is by applying level signal to the electrode at sensing unit two ends, if this sensing Unit is touched, then can form self-capacitance by this sensing unit, the level signal that therefore present invention passes through to apply can be to this from electricity Appearance is charged, and the touch location in a first direction according to the proportionate relationship determination between first resistor and second resistance. For example in one embodiment of the invention, the proportionate relationship between first resistor and second resistance is according to described self-capacitance During charge/discharge, from described first electrode and/or second electrode carry out detecting the first detected value obtaining and the second detected value it Between proportionate relationship be calculated.Therefore detect from first electrode and/or second electrode and produce during this self-capacitance charge/discharge First detected value and the second detected value.So, touch point just can be reacted by the first detected value and the second detected value and be located at this The position of sensing unit, thus further determine that the position in touch-screen for the touch point.
For the sensing unit of Fig. 5 and Fig. 6, in addition it is also necessary to enter after the touch location on determining first direction One step determines touch location in a second direction according to the position of the sensing unit being touched.In an embodiment of the present invention, Can refer to shown in Fig. 5 and 6, if the first detected value of certain sensing unit is detected or the second detected value is more than predetermined threshold value, Then illustrate that this sensing unit is touched.Assume that second sensing unit (its ordinate is m) is touched, then in a second direction Touch location is just the coordinate m of second sensing unit.Afterwards, further according on the touch location and second direction on first direction Touch location determine touch point position on the touchscreen.
Specifically, touch point touch location in a second direction can be calculated using centroid algorithm, below to centroid algorithm Simply introduced.
In draw runner and touch pad are applied, be often necessary essential spacing in concrete sensing unit determined above go out finger The position of (or other capacitive object).It is single that touch panel on draw runner or touch pad for the finger is typically larger than any sensing Unit.In order to the position after touch is calculated using a center, this array is scanned to verify given sensor Position is effective, and the requirement for a number of adjacent sensing unit signal is to be greater than default touch threshold.Finding After signal the strongest, this signal and the closing signal that those are more than touch threshold are used to calculating center:
n c e n t = n i - 1 ( i - 1 ) + n i · i + n i + 1 ( i + 1 ) n i - 1 + n i + n i + 1
Wherein, locate the label of sensing unit centered on ncent, n is the number sensing unit being touched is detected, and i is By the sequence number of touch sensing unit, wherein i is more than or equal to 2.
For example, when finger touches in first passage, its capacitance change is y1, the capacitance change on Article 2 passage During for the capacitance change on y2 and Article 3 passage for y3.Wherein second channel y2 capacitance change is maximum.Y-coordinate is just permissible At last:
y = y 1 * 1 + y 2 * 2 + y 3 * 3 y 1 + y 2 + y 3 .
As shown in figure 11, be one embodiment of the invention contactor control device schematic diagram.This contactor control device is included by substrate 100 The touch screen detection device that constituted with multiple disjoint sensing units 200, touch-screen control chip 300.Wherein, touch-screen A part of pin in control chip 300 is connected with the first electrode 210 of multiple sensing units 200, touch-screen control chip 300 In another part pin be connected with the second electrode 220 of multiple sensing units 200, and touch-screen control chip 300 is to multiple The first electrode 210 of sensing unit 200 and/or second electrode 220 apply level signal, and this level signal is in sensing unit 200 The self-capacitance producing to sensing unit 200 when being touched charges.
As shown in figure 12, be embodiment of the present invention touch-screen control chip structure chart.Touch-screen control chip 300 includes Charging module 310, discharge module 320, detection module 330 and control and computing module 340.Charging module 310 filled in first time In electric process, apply high level signal and by second to the first electrode 210 of one of multiple sensing units sensing unit 200 Electrode ground connection 220 is to be carried out to the self-capacitance that a sensing unit 200 produces when a sensing unit 200 touches for the first time Charge；In second charging process, to the first electrode 210 and second of one of multiple sensing units sensing unit 200 Electrode 220 applies high level signal, or, apply high level signal simultaneously to one of first electrode 210 and second electrode 220 By another disconnection in first electrode 210 and second electrode 220, so that second charging is carried out to self-capacitance；And the 3rd In secondary charging process, apply high level signal to the first electrode 210 of one of multiple sensing units sensing unit 200 and incite somebody to action Second electrode 220 is grounded, and is charged so that self-capacitance is carried out with third time.Discharge module 320 is used in charging module 310 to self-capacitance After third time charges, the first electrode 210 of a sensing unit 200 and second electrode 220 are grounded, or, by the first electricity Another in first electrode 210 and described second electrode 220 is simultaneously disconnected by one of pole 210 and second electrode 220 ground connection To carry out to self-capacitance discharging for the first time.Detection module 330 is used in each discharge and recharge, from corresponding first electrode 210 or Second electrode 220 is detected the first detection changing value between charging for the first time and charge for second obtaining, and from correspondence First electrode 210 or second electrode detected with obtain third time charge and discharge for the first time between the second detection change Value.Control and computing module 340 is used for charging module 310, discharge module 320 and detection module 330 are controlled, and according to First detection changing value and the second detection changing value calculate the first resistor to first electrode for the self-capacitance and self-capacitance to institute State the proportionate relationship of the second resistance between second electrode, and touch is determined according to the proportionate relationship of first resistor and second resistance Position.In an embodiment of the present invention, control and computing module 340 can control charging module 310 successively in the way of scanning Apply corresponding voltage to multiple sensing units, can also be detected successively in the way of scanning in detection simultaneously, or, The mode that can also scan control discharge module 320 successively to produced by the sensing unit being touched in multiple sensing units from Electric capacity is discharged.
In one embodiment of the invention, the first detection changing value, the second detection changing value can change for current detecting Value, self-capacitance detection changing value, level signal detection one or more of changing value and charge variation amount.
In one embodiment of the invention, detection module 330 is cts (capacitive detection module).
In one embodiment of the invention, control and computing module 340 is additionally operable to according to the sensing unit 200 being touched Position determine touch location in a second direction, and according to the touch on the touch location and second direction on first direction Position determines described touch point position on the touchscreen.Specifically, control and computing module 340 determines institute by centroid algorithm State the touch location in second direction.
In one embodiment of the invention, first direction is the length direction of sensing unit 200, and second direction is vertical In the direction of sensing unit 200 length direction, the setting of sensing unit horizontal parallel or vertical parallel setting.
In a preferred embodiment of the invention, multiple disjoint sensing units are located at same layer, thus ensureing On the premise of accuracy of detection, it is effectively reduced manufacturing cost.
The invention allows for a kind of portable electric appts, including contactor control device as above.
The embodiment of the present invention by level signal is applied to the electrode at sensing unit two ends, if this sensing unit is touched Touch, then can form self-capacitance by this sensing unit, the therefore present invention can be filled to this self-capacitance by the level signal applying Electricity, and the touch location on touch-screen is determined according to the proportionate relationship between first resistor and second resistance.And pass through the present invention The detection mode that self-capacitance is charged twice of embodiment, to offset some immeasurablel physical parameters or to reduce thing The measurement of reason amount, thus on the premise of ensureing detection speed, effectively improve accuracy of detection.
The embodiment of the present invention proposes a kind of self-capacitance detection mode of novelty, when sensing unit is touched, touch point This sensing unit can be divided into two resistance, thus considering that this two resistance just can be true while carrying out self-capacitance detection Determine position on this sensing unit for the touch point.The structure of the embodiment of the present invention is simple, and for a sensing unit, Can be charged from its first electrode and/or second electrode or discharge, and be detected in charge or discharge, can not only Reduce rc constant, time-consuming raising efficiency, and can also ensure that coordinate will not offset.Additionally, the embodiment of the present invention also may be used To effectively improve the to-noise ratio of circuit, reduce circuit noise, improve the sensing linearity.And, due to quilt in detection process The sensing unit touching is charged, and therefore wherein can produce small current, can eliminate vcom level signal well to touch In screen, the impact of the self-capacitance that sensing unit produces, therefore can correspondingly eliminate screenmask layer and concerned process steps, thus can With reduces cost further while enhancing antijamming capability.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention And modification, the scope of the present invention by claims and its equivalent limits.

Claims (21)

1. a kind of touch detecting method of touch-screen is it is characterised in that described touch-screen includes multiple disjoint sensing units, The two ends of each sensing unit are respectively provided with first electrode and second electrode, the method comprising the steps of:
Apply high level signal and second electrode connect to the first electrode of one of the plurality of sensing unit sensing unit Ground carries out charging for the first time with the self-capacitance one sensing unit being produced when one sensing unit is touched；
Apply high level signal to the first electrode of one of the plurality of sensing unit sensing unit and second electrode, or Person, applies high level signal and by described first electrode and described the to one of described first electrode and described second electrode Another disconnection in two electrodes, to carry out second charging to described self-capacitance；
Detected from corresponding described first electrode or second electrode and filled for the second time with described with obtaining described first time charging The first detection changing value between electricity, and described self-capacitance is carried out discharge for the first time；
Apply high level signal electric by described second to the first electrode of one of the plurality of sensing unit sensing unit Pole is grounded, and is charged so that described self-capacitance is carried out with third time；
By the first electrode of one sensing unit and second electrode ground connection, or, by described first electrode and described second One of electrode ground connection simultaneously disconnects, another in described first electrode and described second electrode to enter to described self-capacitance Row discharges for second；
Detected from corresponding described first electrode or second electrode and put for the second time with described with obtaining described third time charging The second detection changing value between electricity；
Described self-capacitance is calculated to described first electrode according to the described first detection changing value and the second detection changing value The proportionate relationship of the first resistor and described self-capacitance second resistance to described second electrode；And
Touch location is determined according to the proportionate relationship between described first resistor and described second resistance.
2. the touch detecting method of touch-screen as claimed in claim 1 is it is characterised in that described first detection changing value and the Two detection changing values are current detecting changing value, self-capacitance detects that changing value, level signal detect changing value and charge variation amount One or more of.
3. touch-screen as claimed in claim 1 touch detecting method it is characterised in that described sensing unit be rectangle, and The plurality of sensing unit is parallel to each other with the first direction of described touch-screen, and described touch location is touching object described the Touch location on one direction.
4. the touch detecting method of touch-screen as claimed in claim 3 is it is characterised in that described sensing unit includes:
Multiple Part I and multiple parallel Part II, wherein, pass through described second between adjacent described Part I Partly it is connected, to form multiple the first alternately arranged grooves and the second groove, wherein, the plurality of first groove and described many The opening direction of individual second groove is contrary, and described touch location is touching object touch location in said first direction.
5. the touch detecting method of the touch-screen as described in claim 3 or 4 is it is characterised in that also include:
Position according to the described sensing unit being touched determines touch location in a second direction；And
Determine touch point on the touchscreen according to touch location on the touch location and second direction on described first direction Position.
6. the touch detecting method of touch-screen as claimed in claim 5 is it is characterised in that touch position in described second direction Put and determined by centroid algorithm.
7. touch detecting method as claimed in claim 6 is it is characterised in that described first direction is the length of described sensing unit Degree direction, described second direction is perpendicular to the direction of described sensing unit, described sensing unit horizontal parallel setting or vertical It is arranged in parallel.
8. the touch detecting method of touch-screen as claimed in claim 1 is it is characterised in that described sensing unit includes:
Part III, one end of described Part III has described first electrode；
Part IV, one end of described Part IV is connected with the other end of described Part III, described Part IV another End has described second electrode.
9. the touch detecting method of touch-screen as claimed in claim 1 is it is characterised in that described sensing unit includes:
Part V；
Disjoint Part VI and Part VII, described Part VI one end is connected with one end of described Part V, described One end of Part VII is connected with the other end of described Part V, and the other end of described Part VI has described first electricity Pole, and the other end of described Part VII has described second electrode.
10. a kind of contactor control device is it is characterised in that include:
Substrate；
Multiple disjoint sensing units, the plurality of sensing unit is formed on described substrate, and each sensing unit Two ends are respectively provided with first electrode and second electrode；
Touch-screen control chip, described touch-screen control chip includes charging module, discharge module, detection module and control and meter Calculate module, wherein,
Described charging module, in first time charging process, to one of the plurality of sensing unit sensing unit First electrode apply high level signal and by second electrode ground connection with when one sensing unit is touched to one The self-capacitance that sensing unit produces carries out charging for the first time；In second charging process, in the plurality of sensing unit The first electrode of one sensing unit and second electrode apply high level signal, or, to described first electrode and second electrode One of apply high level signal and by described first electrode and second electrode another disconnection, with to described self-capacitance Carry out second charging；And in third time charging process, to the of one of the plurality of sensing unit sensing unit One electrode applies high level signal and is grounded described second electrode, is charged so that described self-capacitance is carried out with third time,
Described discharge module, is carried out to described self-capacitance for after charging for second to described self-capacitance in described charging module Discharge for the first time, and after described charging module carries out to described self-capacitance charging for the third time, will be single for one sensing The first electrode of unit and second electrode ground connection, or, one of described first electrode and described second electrode are grounded and incite somebody to action Another in described first electrode and described second electrode disconnects to carry out second electric discharge to described self-capacitance,
Described detection module, is filled with obtaining described first time for detecting from corresponding described first electrode or second electrode The first detection changing value between charging for electric and described second, and examined from corresponding described first electrode or second electrode Survey with the second detection changing value between obtaining described third time charging and discharging for described second；With
Control and computing module, for being controlled to described charging module, discharge module and detection module, and
Described self-capacitance to described first electrode first is calculated according to the first detection changing value and the second detection changing value Proportionate relationship between the resistance and described self-capacitance second resistance to described second electrode, and according to described first resistor Proportionate relationship and described second resistance between determines touch location.
11. contactor control devices as claimed in claim 10 are it is characterised in that described first detection changing value and the second detection change Be worth for current detecting changing value, self-capacitance detect changing value, level signal detection one of changing value and charge variation amount or Multiple.
12. contactor control devices as claimed in claim 10 are it is characterised in that described detection module is capacitive detection module cts.
13. contactor control devices as claimed in claim 10 are it is characterised in that described sensing unit is rectangle, and the plurality of sense Unit and the first direction of described touch-screen is answered to be parallel to each other, described touch location is touch position in said first direction Put.
14. contactor control devices as claimed in claim 13 are it is characterised in that described sensing unit includes:
Multiple Part I and multiple parallel Part II, wherein, pass through described second between adjacent described Part I Partly it is connected, to form multiple the first alternately arranged grooves and the second groove, wherein, the plurality of first groove and described many The opening direction of individual second groove is contrary, and described touch location is touching object touch location in said first direction.
15. contactor control devices as described in claim 13 or 14 it is characterised in that
Described control and computing module, are additionally operable to the position according to the described sensing unit being touched and determine in a second direction Touch location, and determine that touch point is touching according to the touch location on the touch location and second direction on described first direction Position on screen.
16. contactor control devices as claimed in claim 15 are it is characterised in that described control and computing module are true by centroid algorithm Touch location in fixed described second direction.
17. contactor control devices as claimed in claim 15 are it is characterised in that described first direction is the length of described sensing unit Direction, described second direction is perpendicular to the direction of described sensing unit, and described sensing unit horizontal parallel arranges or vertically puts down Row setting.
18. contactor control devices as claimed in claim 10 are it is characterised in that the plurality of disjoint sensing unit is positioned at same Layer.
19. contactor control devices as claimed in claim 10 are it is characterised in that described sensing unit includes:
Part III, one end of described Part III has described first electrode；
Part IV, one end of described Part IV is connected with the other end of described Part III, described Part IV another End has described second electrode.
20. contactor control devices as claimed in claim 10 are it is characterised in that described sensing unit includes:
Part V；
Disjoint Part VI and Part VII, described Part VI one end is connected with one end of described Part V, described One end of Part VII is connected with the other end of described Part V, and the other end of described Part VI has described first electricity Pole, and the other end of described Part VII has described second electrode.
A kind of 21. portable electric appts are it is characterised in that include the contactor control device as described in any one of claim 10-20.
CN201110459333.7A 2011-07-26 2011-12-31 Touch detection method and touch control device Active CN102902433B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110459333.7A CN102902433B (en) 2011-07-26 2011-12-31 Touch detection method and touch control device

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CN201110211018.2 2011-07-26
CN2011102110182 2011-07-26
CN201110210959.4 2011-07-26
CN2011102109594 2011-07-26
CN201110210959 2011-07-26
CN201110211018 2011-07-26
CN201110459333.7A CN102902433B (en) 2011-07-26 2011-12-31 Touch detection method and touch control device

Publications (2)

Publication Number Publication Date
CN102902433A CN102902433A (en) 2013-01-30
CN102902433B true CN102902433B (en) 2017-01-25

Family

ID=47169405

Family Applications (40)

Application Number Title Priority Date Filing Date
CN2011205733797U Expired - Lifetime CN202795310U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459293.6A Active CN102902429B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201120573486XU Expired - Lifetime CN202649983U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205738057U Expired - Lifetime CN202795313U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205734304U Expired - Lifetime CN202795311U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205736916U Expired - Lifetime CN202548806U (en) 2011-07-26 2011-12-31 Touch control apparatus and portable electronic equipment
CN201110459449.0A Active CN102902436B (en) 2011-07-26 2011-12-31 Touch-screen testing equipment and contactor control device
CN2011205732173U Expired - Lifetime CN202548804U (en) 2011-07-26 2011-12-31 Touch device and portable electronic device
CN201110459482.3A Active CN102902439B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205734658U Expired - Lifetime CN202548805U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch device and portable electronic equipment
CN2011205737694U Expired - Lifetime CN202548807U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459292.1A Active CN102902428B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459466.4A Active CN102902437B (en) 2011-07-26 2011-12-31 Touch-screen testing equipment and contactor control device
CN201110459333.7A Active CN102902433B (en) 2011-07-26 2011-12-31 Touch detection method and touch control device
CN201110459313.XA Active CN102902431B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205736297U Expired - Lifetime CN202600660U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459367.6A Active CN102902434B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459295.5A Active CN102902430B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459408.1A Active CN102902435B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459115.3A Active CN102902427B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205737976U Expired - Lifetime CN202600661U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch control device and portable electronic equipment
CN2011205734681U Expired - Lifetime CN202795312U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459473.4A Active CN102902438B (en) 2011-07-26 2011-12-31 Touch detecting method, touch screen detection device and contactor control device
CN2011205737919U Expired - Lifetime CN202649984U (en) 2011-07-26 2011-12-31 Touch screen detection device, touch control device, and portable electronic device
CN2011205732224U Expired - Lifetime CN202795309U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459316.3A Active CN102902432B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205738593U Expired - Lifetime CN202795285U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459486.1A Active CN102902440B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2012201345316U Expired - Lifetime CN202795315U (en) 2011-07-26 2012-04-01 Touching detection assembly and touching control device and portable type electronic device
CN201220134083XU Expired - Lifetime CN202649960U (en) 2011-07-26 2012-04-01 Portable electric equipment, touch detection assembly and touch control device
CN201210093646.XA Expired - Fee Related CN102902398B (en) 2011-07-26 2012-04-01 Portable electric appts, touch detection components and contactor control device
CN201210093687.9A Expired - Fee Related CN102902399B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and a kind of portable electric appts
CN2012201340971U Expired - Lifetime CN202795314U (en) 2011-07-26 2012-04-01 Touch control device and touch detecting assembly thereof and portable electronic device
CN2012201345443U Expired - Lifetime CN202615359U (en) 2011-07-26 2012-04-01 Touch detection module and touch control device and portable electronic equipment
CN201210093681.1A Expired - Fee Related CN102902443B (en) 2011-07-26 2012-04-01 A kind of touch detection components, contactor control device and portable electric appts
CN2012201341090U Expired - Lifetime CN202870787U (en) 2011-07-26 2012-04-01 Touch detection component, touch control device and portable electronic equipment
CN201210094078.5A Expired - Fee Related CN102902444B (en) 2011-07-26 2012-04-01 Touch detection components, a kind of contactor control device and portable electric appts
CN2012201340878U Expired - Lifetime CN202649961U (en) 2011-07-26 2012-04-01 Touch detection assembly, touch control device and portable electric equipment
CN201210093649.3A Expired - Fee Related CN102902441B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and portable electric appts
CN201210093658.2A Expired - Fee Related CN102902442B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and portable electric appts

Family Applications Before (13)

Application Number Title Priority Date Filing Date
CN2011205733797U Expired - Lifetime CN202795310U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459293.6A Active CN102902429B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201120573486XU Expired - Lifetime CN202649983U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205738057U Expired - Lifetime CN202795313U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205734304U Expired - Lifetime CN202795311U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN2011205736916U Expired - Lifetime CN202548806U (en) 2011-07-26 2011-12-31 Touch control apparatus and portable electronic equipment
CN201110459449.0A Active CN102902436B (en) 2011-07-26 2011-12-31 Touch-screen testing equipment and contactor control device
CN2011205732173U Expired - Lifetime CN202548804U (en) 2011-07-26 2011-12-31 Touch device and portable electronic device
CN201110459482.3A Active CN102902439B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205734658U Expired - Lifetime CN202548805U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch device and portable electronic equipment
CN2011205737694U Expired - Lifetime CN202548807U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459292.1A Active CN102902428B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459466.4A Active CN102902437B (en) 2011-07-26 2011-12-31 Touch-screen testing equipment and contactor control device

Family Applications After (26)

Application Number Title Priority Date Filing Date
CN201110459313.XA Active CN102902431B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205736297U Expired - Lifetime CN202600660U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic equipment
CN201110459367.6A Active CN102902434B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459295.5A Active CN102902430B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459408.1A Active CN102902435B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN201110459115.3A Active CN102902427B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205737976U Expired - Lifetime CN202600661U (en) 2011-07-26 2011-12-31 Touch screen detection equipment, touch control device and portable electronic equipment
CN2011205734681U Expired - Lifetime CN202795312U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459473.4A Active CN102902438B (en) 2011-07-26 2011-12-31 Touch detecting method, touch screen detection device and contactor control device
CN2011205737919U Expired - Lifetime CN202649984U (en) 2011-07-26 2011-12-31 Touch screen detection device, touch control device, and portable electronic device
CN2011205732224U Expired - Lifetime CN202795309U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459316.3A Active CN102902432B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2011205738593U Expired - Lifetime CN202795285U (en) 2011-07-26 2011-12-31 Touch control device and portable electronic device
CN201110459486.1A Active CN102902440B (en) 2011-07-26 2011-12-31 Touch detecting method and contactor control device
CN2012201345316U Expired - Lifetime CN202795315U (en) 2011-07-26 2012-04-01 Touching detection assembly and touching control device and portable type electronic device
CN201220134083XU Expired - Lifetime CN202649960U (en) 2011-07-26 2012-04-01 Portable electric equipment, touch detection assembly and touch control device
CN201210093646.XA Expired - Fee Related CN102902398B (en) 2011-07-26 2012-04-01 Portable electric appts, touch detection components and contactor control device
CN201210093687.9A Expired - Fee Related CN102902399B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and a kind of portable electric appts
CN2012201340971U Expired - Lifetime CN202795314U (en) 2011-07-26 2012-04-01 Touch control device and touch detecting assembly thereof and portable electronic device
CN2012201345443U Expired - Lifetime CN202615359U (en) 2011-07-26 2012-04-01 Touch detection module and touch control device and portable electronic equipment
CN201210093681.1A Expired - Fee Related CN102902443B (en) 2011-07-26 2012-04-01 A kind of touch detection components, contactor control device and portable electric appts
CN2012201341090U Expired - Lifetime CN202870787U (en) 2011-07-26 2012-04-01 Touch detection component, touch control device and portable electronic equipment
CN201210094078.5A Expired - Fee Related CN102902444B (en) 2011-07-26 2012-04-01 Touch detection components, a kind of contactor control device and portable electric appts
CN2012201340878U Expired - Lifetime CN202649961U (en) 2011-07-26 2012-04-01 Touch detection assembly, touch control device and portable electric equipment
CN201210093649.3A Expired - Fee Related CN102902441B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and portable electric appts
CN201210093658.2A Expired - Fee Related CN102902442B (en) 2011-07-26 2012-04-01 Touch detection components, contactor control device and portable electric appts

Country Status (3)

Country Link
CN (40) CN202795310U (en)
TW (14) TWM449305U (en)
WO (7) WO2013013624A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202795310U (en) * 2011-07-26 2013-03-13 比亚迪股份有限公司 Touch control device and portable electronic device
CN103105988B (en) * 2013-01-22 2016-01-06 北京京东方光电科技有限公司 Capacitive touch screen, the manufacture method of touch control display apparatus and capacitive touch screen
CN103294319A (en) * 2013-06-06 2013-09-11 敦泰科技有限公司 Capacitive touch screen
US9552089B2 (en) 2013-08-07 2017-01-24 Synaptics Incorporated Capacitive sensing using a matrix electrode pattern
TWI502460B (en) * 2013-08-07 2015-10-01 Focaltech Electronics Ltd A self-capacitive touch screen and a touch control apparatus
CN103455228B (en) * 2013-08-30 2016-10-19 珠海中慧微电子有限公司 Automatically induction point and the method for capacitance touch screen driving voltage load time are calculated
CN103699278B (en) * 2013-10-22 2017-01-11 敦泰电子有限公司 Self-capacitance change detection method and self-capacitance sensing device for touch screen
WO2015058350A1 (en) * 2013-10-22 2015-04-30 敦泰科技有限公司 Self-capacitance change detection method and self-capacitance sensing device for touch screen
TWI515634B (en) * 2013-11-08 2016-01-01 義隆電子股份有限公司 Touch device and sensing method for of the touch device
JP6216252B2 (en) * 2014-01-09 2017-10-18 アルプス電気株式会社 Input device
CN104808870A (en) * 2014-01-23 2015-07-29 天津富纳源创科技有限公司 Detection method of touch point of single-layer capacitive touch screen
CN104850283B (en) * 2014-02-14 2018-02-02 晨星半导体股份有限公司 Self-capacitance touch panel electrode using zigzag line segment to increase resistance value
TWI610203B (en) * 2014-02-14 2018-01-01 晨星半導體股份有限公司 Electrode of self-capacitive touch panel utilizing serpentine trace to increase resistance and self-capacitive touch panel
US9703431B2 (en) 2014-06-03 2017-07-11 Synaptics Incorporated Noise detection and mitigation for capacitive sensing devices
US9753587B2 (en) 2014-06-05 2017-09-05 Synaptics Incorporated Driving sensor electrodes for absolute capacitive sensing
US9703430B2 (en) 2014-06-30 2017-07-11 Synaptics Incorporated Driving sensor electrodes for proximity sensing
US9746975B2 (en) 2015-03-27 2017-08-29 Synaptics Incorporated Capacitive measurement processing for mode changes
US10729194B2 (en) 2015-05-13 2020-08-04 Lukla Inc. Garment with strategically positioned polymide aerogel panels
CN106325578B (en) * 2015-07-10 2023-07-25 宸鸿科技(厦门)有限公司 Pressure sensing touch panel
CN107294521B (en) * 2016-03-31 2020-08-21 日本电气株式会社 Induction detection method and device
CN106527451B (en) * 2016-12-27 2023-07-11 许筠 On-screen interactive robot
CN107328555A (en) * 2017-06-20 2017-11-07 合肥市惠科精密模具有限公司 A kind of display screen foreign matter detecting method
CN108108055B (en) * 2018-01-02 2021-11-16 联想(北京)有限公司 Touch device, touch method and electronic equipment
CN109375839B (en) * 2018-12-03 2020-06-30 武汉华星光电半导体显示技术有限公司 Touch screen and display device
TWI724790B (en) * 2020-02-14 2021-04-11 李尚禮 Resistive touch device and resistive touch-sensing method
TWI727662B (en) * 2020-02-14 2021-05-11 李尚禮 Resistive touch device and resistive touch-sensing method
CN111762023B (en) * 2020-05-29 2022-04-12 法雷奥舒适驾驶辅助系统(广州)有限公司 Touch device and method thereof and auxiliary switch of automobile steering wheel
CN111766978B (en) * 2020-06-12 2021-09-24 深圳市华星光电半导体显示技术有限公司 Touch control assembly and touch control display device
CN111813277A (en) * 2020-07-10 2020-10-23 温州长江汽车电子有限公司 Double-layer pressure touch signal acquisition method of capacitive touch switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3220405B2 (en) * 1997-02-20 2001-10-22 アルプス電気株式会社 Coordinate input device
CN1708672A (en) * 2002-10-31 2005-12-14 哈拉尔德·菲利普 Charge transfer capacitive position sensor
CN101751172A (en) * 2008-12-08 2010-06-23 上海天马微电子有限公司 Touch position detecting method and touch screen
CN101840293A (en) * 2010-01-21 2010-09-22 宸鸿科技(厦门)有限公司 Scanning method for projected capacitive touch panels

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1091350A (en) * 1996-09-10 1998-04-10 Tokyo Cosmos Electric Co Ltd Touch panel
US6057903A (en) * 1998-08-18 2000-05-02 International Business Machines Corporation Liquid crystal display device employing a guard plane between a layer for measuring touch position and common electrode layer
US6297811B1 (en) * 1999-06-02 2001-10-02 Elo Touchsystems, Inc. Projective capacitive touchscreen
TWI258708B (en) * 2005-01-27 2006-07-21 Apex Material Technology Corp Resistive touch panel, and it manufacturing method
WO2007091579A1 (en) * 2006-02-10 2007-08-16 Sharp Kabushiki Kaisha Touch panel coordinate position detection device
GB2439614B (en) * 2006-05-31 2008-12-24 Harald Philipp Two-dimensional position sensor
TW200844827A (en) * 2007-05-11 2008-11-16 Sense Pad Tech Co Ltd Transparent touch panel device
KR101530189B1 (en) * 2007-07-19 2015-06-22 (주)멜파스 Touchscreen apparatus having multiple bar-type transparent electrodes
JP5094376B2 (en) * 2007-12-28 2012-12-12 株式会社ワコム Position detection device
TW200935290A (en) * 2008-01-15 2009-08-16 Ad Semiconductor Co Ltd Resistive touch screen which can identify multi-touch
CN201174111Y (en) * 2008-03-12 2008-12-31 洋华光电股份有限公司 Signal conducting construction of touching control panel
TW201005613A (en) * 2008-04-10 2010-02-01 Atmel Corp Capacitive position sensor
US8487898B2 (en) * 2008-04-25 2013-07-16 Apple Inc. Ground guard for capacitive sensing
CN101655754B (en) * 2008-08-21 2014-03-26 株式会社和冠 Extended touchscreen pattern
CN101661356B (en) * 2008-08-25 2011-07-06 盛群半导体股份有限公司 Capacitance charge compensation method for touch induction device
JP5113773B2 (en) * 2009-01-20 2013-01-09 株式会社ジャパンディスプレイイースト Display device
CN101847066A (en) * 2009-03-25 2010-09-29 友达光电股份有限公司 Mutual capacitance type touch control display device
JP5193942B2 (en) * 2009-05-14 2013-05-08 京セラディスプレイ株式会社 Capacitive touch panel device
TWI543048B (en) * 2009-05-15 2016-07-21 晨星半導體股份有限公司 A sensor structure of a capacitive touch panel and the sensing method thereof
TWI528250B (en) * 2009-06-25 2016-04-01 Elan Microelectronics Corp Object Detector and Method for Capacitive Touchpad
TW201102895A (en) * 2009-07-10 2011-01-16 Focaltech Systems Ltd Ultra-thin mutual capacitance touch panel and assembly-type ultra-thin touch panel
CN101996014B (en) * 2009-08-21 2013-08-14 宏达国际电子股份有限公司 Pressure detection method of touch sensing element and electronic device using same
US9632628B2 (en) * 2009-10-23 2017-04-25 Atmel Corporation Interdigitated touchscreen electrodes
TWI489356B (en) * 2009-12-15 2015-06-21 Au Optronics Corp Touch display device and touch sensing device
TWI417777B (en) * 2009-12-24 2013-12-01 Orise Technology Co Ltd Capacitive touch panel with high touching sensitivity
KR20110076188A (en) * 2009-12-29 2011-07-06 삼성전자주식회사 Mutual capacitance sensing device and method for manufacturing the same
CN101923419A (en) * 2010-04-20 2010-12-22 敦泰科技有限公司 Self-capacitance touch screen with one-dimensional electrodes and coordinate data processing method thereof
TWI426435B (en) * 2010-09-14 2014-02-11 Sentelic Corp Capacitive touch panel and its manufacturing method
CN101984391B (en) * 2010-10-13 2012-12-26 友达光电股份有限公司 Touch panel and repair method thereof
TWI426437B (en) * 2010-10-28 2014-02-11 Young Lighting Technology Inc Capacitive touch panel
TWI421756B (en) * 2010-12-23 2014-01-01 Au Optronics Corp Touch display panel and touch sensing panel
CN202422046U (en) * 2011-07-26 2012-09-05 比亚迪股份有限公司 Induction unit, touch screen detection device and touch control device
CN202267944U (en) * 2011-07-26 2012-06-06 比亚迪股份有限公司 Touch screen detecting device and touch control device
CN202795310U (en) * 2011-07-26 2013-03-13 比亚迪股份有限公司 Touch control device and portable electronic device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3220405B2 (en) * 1997-02-20 2001-10-22 アルプス電気株式会社 Coordinate input device
CN1708672A (en) * 2002-10-31 2005-12-14 哈拉尔德·菲利普 Charge transfer capacitive position sensor
CN101751172A (en) * 2008-12-08 2010-06-23 上海天马微电子有限公司 Touch position detecting method and touch screen
CN101840293A (en) * 2010-01-21 2010-09-22 宸鸿科技(厦门)有限公司 Scanning method for projected capacitive touch panels

Also Published As

Publication number Publication date
WO2013013637A1 (en) 2013-01-31
CN102902427B (en) 2015-09-02
CN102902434A (en) 2013-01-30
TWM449305U (en) 2013-03-21
CN102902433A (en) 2013-01-30
CN102902437B (en) 2016-04-27
CN102902398A (en) 2013-01-30
CN202615359U (en) 2012-12-19
CN202795312U (en) 2013-03-13
CN102902442A (en) 2013-01-30
TWM451595U (en) 2013-04-21
CN202548804U (en) 2012-11-21
TWM457238U (en) 2013-07-11
CN202795311U (en) 2013-03-13
WO2013013625A1 (en) 2013-01-31
CN202795310U (en) 2013-03-13
CN102902436A (en) 2013-01-30
CN102902399A (en) 2013-01-30
TWI486848B (en) 2015-06-01
CN102902441B (en) 2016-06-22
CN202795309U (en) 2013-03-13
TW201319903A (en) 2013-05-16
CN102902431B (en) 2016-09-07
CN102902443A (en) 2013-01-30
CN202870787U (en) 2013-04-10
TW201319904A (en) 2013-05-16
CN202548805U (en) 2012-11-21
WO2013013627A1 (en) 2013-01-31
TWM470979U (en) 2014-01-21
CN102902398B (en) 2016-03-02
CN202649983U (en) 2013-01-02
CN102902438B (en) 2016-06-01
CN102902440B (en) 2016-03-30
TWI494833B (en) 2015-08-01
CN102902435B (en) 2015-12-02
CN102902432B (en) 2016-03-02
CN202600661U (en) 2012-12-12
CN102902438A (en) 2013-01-30
CN102902428A (en) 2013-01-30
WO2013013635A1 (en) 2013-01-31
WO2013013636A1 (en) 2013-01-31
TWI482074B (en) 2015-04-21
WO2013013624A1 (en) 2013-01-31
CN202649961U (en) 2013-01-02
CN102902427A (en) 2013-01-30
CN202795313U (en) 2013-03-13
CN102902442B (en) 2016-04-27
TWM453897U (en) 2013-05-21
TWI479399B (en) 2015-04-01
CN102902443B (en) 2016-01-13
CN202600660U (en) 2012-12-12
CN102902436B (en) 2015-12-02
CN102902437A (en) 2013-01-30
WO2013013634A1 (en) 2013-01-31
CN102902435A (en) 2013-01-30
CN102902429B (en) 2016-05-04
TWM450007U (en) 2013-04-01
CN202795315U (en) 2013-03-13
TWI475437B (en) 2015-03-01
CN202795314U (en) 2013-03-13
TWM464745U (en) 2013-11-01
CN202548806U (en) 2012-11-21
CN102902430B (en) 2016-03-30
CN102902431A (en) 2013-01-30
TW201310317A (en) 2013-03-01
CN102902429A (en) 2013-01-30
CN102902430A (en) 2013-01-30
CN102902444B (en) 2016-08-17
TW201324296A (en) 2013-06-16
TW201305892A (en) 2013-02-01
CN102902439B (en) 2016-11-09
CN202649960U (en) 2013-01-02
CN202548807U (en) 2012-11-21
CN202795285U (en) 2013-03-13
CN102902432A (en) 2013-01-30
TW201308156A (en) 2013-02-16
CN102902444A (en) 2013-01-30
CN102902439A (en) 2013-01-30
CN202649984U (en) 2013-01-02
CN102902441A (en) 2013-01-30
TW201308180A (en) 2013-02-16
CN102902434B (en) 2015-09-30
CN102902440A (en) 2013-01-30
TWI485604B (en) 2015-05-21
TWI483164B (en) 2015-05-01
CN102902428B (en) 2016-09-07
CN102902399B (en) 2015-12-09

Similar Documents

Publication Publication Date Title
CN102902433B (en) Touch detection method and touch control device
CN202267944U (en) Touch screen detecting device and touch control device
TWI505163B (en) Touch detecting method, touch screen detecting device, touch sensitive device, and portable electronic apparatus
CN102902387A (en) Sensing unit, touch screen detector and touch device
CN102902388A (en) Touch detection method, touch screen detector and touch device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200102

Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong

Patentee after: SHENZHEN BYD MICROELECTRONICS Co.,Ltd.

Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009

Patentee before: BYD Co.,Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee after: BYD Semiconductor Co.,Ltd.

Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd.

Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee after: BYD Semiconductor Co.,Ltd.

Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province

Patentee before: BYD Semiconductor Co.,Ltd.