CN102902429B - Touch detecting method and contactor control device - Google Patents
Touch detecting method and contactor control device Download PDFInfo
- Publication number
- CN102902429B CN102902429B CN201110459293.6A CN201110459293A CN102902429B CN 102902429 B CN102902429 B CN 102902429B CN 201110459293 A CN201110459293 A CN 201110459293A CN 102902429 B CN102902429 B CN 102902429B
- Authority
- CN
- China
- Prior art keywords
- electrode
- touch
- sensing unit
- capacitance
- time
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims description 53
- 239000000758 substrate Substances 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 241000070928 Calligonum comosum Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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 present invention proposes a kind of touch detecting method and contactor control device. The method comprises: to the first electrode of a sensing unit in described multiple sensing units apply high level signal and by the second electrode grounding to charge for the first time; Apply high level signal to charge for the second time to the first electrode and the second electrode; Detect to obtain the first change detected value between charging for the first time and charging for the second time from the first electrode or second electrode of correspondence; By the first electrode and the second electrode grounding to discharge for the first time; Detect to obtain charging for the second time and the second change detected value between electric discharge for the first time from the first electrode of correspondence or the second electrode; According to the first change detected value and the second change detected value calculated touch location.
Description
Technical field
The present invention relates to electronic device design and manufacturing technology field, particularly a kind of touch detecting method and touch-control dressPut.
Background technology
At present the range of application of touch-screen is from ATM (automatic teller machine) in the past, minority's business markets such as industrial computer,Expand to rapidly mobile phone, PDA (personal digital assistant), GPS (global positioning system), PMP (MP3, MP4Deng), the even mass consumption electronic applications such as panel computer. Have for touch-screen that touch control operation is simple, convenient, peopleThe advantage of property, therefore touch-screen is expected to become the best interface of human-computer interaction and in portable set, has obtained rapidlyExtensive use.
Capacitance touch screen is divided into self-capacitance and mutual capacitance two classes conventionally. As shown in Figure 1, for common in prior artA kind of structure chart of self-capacitance touch screen. This self-capacitance touch screen mainly contain double-deck diamond structure sensing unit 100 ' and200 ', it detects principle is that X-axis and Y-axis are scanned respectively, if detect that the capacitance variations in certain crosspoint exceedsPreset range, by the crosspoint of this row and column as touch coordinate. Although the linearity of this self-capacitance touch screenGood, but often there's something fishy, point occurs, is difficult to realize multiple point touching. In addition,, owing to adopting bilayer screen, also can cause knotStructure and cost significantly increase, and diamond structure there will be coordinate drift in the situation that capacitance change is very little, outside being subject toBoundary's interference effect is large.
As shown in Figure 2 a, be the structure chart of another kind of self-capacitance touch screen common in prior art. This self-capacitance touchesScreen adopts triangular pattern screen structure. This self-capacitance touch screen comprises substrate 300 ', be arranged on many on substrate 300 'Multiple electrodes 500 ' that individual triangle sensing unit 400 ' is connected with each triangle sensing unit 400 '. As Fig. 2 bShown in, be the detection principle of triangle self-capacitance touch screen. As shown in the figure, ellipse representation finger, S1, S2 represent handRefer to the contact area with two triangle sensing units. False coordinate initial point is in the lower left corner, abscissaX=S2/ (S1+S2) * P, wherein, P is resolution ratio. In the time that finger moves right, because S2 is not linear increase, instituteThere is a deviation with X coordinate. Can find out from above-mentioned principle, current triangle sensing unit is single-ended detection,Only detect from a direction, then calculate the coordinate of both direction by algorithm. Although this self-capacitance touch screen structureMore simple, but be not optimized for the capacitive sensing of screen, capacitance change is little, thereby causes signal to noise ratioNot. In addition,, because this sensing unit is triangle, in the time of finger transverse shifting, area is not linear increase, thereforeThe linearity is poor, has caused coordinate to calculate and has been offset, and the linearity is good not.
In addition, this capacitive sensing unit output capacitance variable quantity is very little, reaches flying method level, the depositing of its cable stray capacitance, measuring circuit is had higher requirement. And stray capacitance can distribute with temperature, position, inner electric field and outer electric fieldDeng many factors and changing, disturb and even flood measured capacitance signal. In addition, for individual layer electric capacity, byThe meeting that affects in Vcom level signal forms serious interference to inductance capacitance, wherein, Vcom level signal be forPrevent lcd screen liquid crystal aging and do not stop the level signal of overturning.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, particularly solves or avoid to occur existing from electricityHold the above-mentioned shortcoming in touch-screen.
Embodiment of the present invention first aspect has proposed a kind of touch detecting method of touch-screen, and described touch-screen comprises multipleDisjoint sensing unit, the two ends of each sensing unit have respectively the first electrode and the second electrode, described method bagDraw together following steps: apply high level signal will to the first electrode of a sensing unit in described multiple sensing unitsThe second electrode grounding carries out with the self-capacitance in the time that a described sensing unit is touched, a described sensing unit being producedCharging for the first time; The first electrode and the second electrode to a sensing unit in described multiple sensing units apply high electricityFlat signal, or, high level signal applied and by described the to one in described the first electrode and described the second electrodeAnother in one electrode and described the second electrode disconnects, so that described self-capacitance is charged for the second time; From correspondenceCharging for the first time and described the between charging for the second time described in described the first electrode or the second electrode detect to obtainOne change detected value; By the first electrode of a described sensing unit and the second electrode grounding, or, by described firstGround connection in electrode and described the second electrode by disconnected another in described the first electrode and described the second electrodeOpen, so that described self-capacitance is discharged for the first time; From described first electrode of correspondence or the second electrode detect withCharging for the second time and described the second change detected value between electric discharge for the first time described in acquisition; Detect and become according to described firstChange value and the second change detected value are calculated described self-capacitance to the first resistance and described self-capacitance between described the first electrodeTo the proportionate relationship of the second resistance between described the second electrode; And according to described the first resistance and described the second resistanceBetween proportionate relationship determine touch location.
For example, charging is for the first time different with the charging voltage of charging for the second time to self-capacitance, therefore can cause self-capacitanceCharge variation, the present invention can obtain the ratio of corresponding the first resistance and the second resistance according to the charge variation of self-capacitanceRelation.
Embodiment of the present invention second aspect has also proposed a kind of contactor control device, comprising: substrate; Multiple disjoint inductionsUnit, described multiple sensing units are formed on described substrate, and the two ends of each sensing unit have respectively firstElectrode and the second electrode; Touch-screen control chip, described touch-screen control chip comprise charging module, discharge module,Detection module and control and computing module, wherein, described charging module, in charging process for the first time, to instituteThe first electrode of stating a sensing unit in multiple sensing units apply high level signal and by the second electrode grounding withSelf-capacitance when a described sensing unit is touched, a described sensing unit being produced charges for the first time; ?In recharging process, apply to the first electrode and second electrode of a sensing unit in described multiple sensing unitsHigh level signal, or, high level signal applied and by described the to one in described the first electrode and the second electrodeAnother in one electrode and the second electrode disconnects, so that described self-capacitance is charged for the second time; Described discharge module,For after described charging module charges for the second time to described self-capacitance, by first of a described sensing unitElectrode and the second electrode grounding, or, by a ground connection in described the first electrode and described the second electrode and described in inciting somebody to actionAnother in the first electrode and described the second electrode disconnects so that described self-capacitance is discharged for the first time, described detectionModule, described in detecting to obtain for described the first electrode from correspondence or the second electrode charging for the first time and described inThe first change detected value between charging for the second time, and from described first electrode of correspondence or the second electrode detect withCharging for the second time and described the second change detected value between electric discharge for the first time described in acquisition; With control and computing module,For described charging module, discharge module, first detection module and the second detection module are controlled, and according to theOne change detected value and the second change detected value are calculated described self-capacitance to the first resistance and institute between described the first electrodeState self-capacitance to the proportionate relationship between the second resistance between described the second electrode, and according to described the first resistance and instituteThe proportionate relationship of stating between the second resistance is determined touch location.
The embodiment of the present invention third aspect has also proposed a kind of portable electric appts, comprises contactor control device as above.
Sensing unit in the Touch-screen testing equipment of the embodiment of the present invention adopts both-end to detect, i.e. the two ends of sensing unitAll there is electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, logical in the time touching detectionCross sensing unit self and can realize the location to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between the first resistance and the second resistanceFixed, therefore with respect to current rhombus or triangular design, due in the time determining touch location, without calculating certainlyThe size of electric capacity, and the size of self-capacitance can not affect the precision of touch location, thus improve certainty of measurement, improveThe linearity.
The embodiment of the present invention is by the electrode at sensing unit two ends is applied to level signal, if this sensing unit is touched,Touch object (for example finger) and can form self-capacitance with this sensing unit, therefore the present invention is by the level letter applyingNumber can charge to this self-capacitance, and determine on touch-screen according to the proportionate relationship between the first resistance and the second resistanceTouch location. And by the detection mode that self-capacitance is carried out to twice charging of the embodiment of the present invention, to offset someThe measurement of immeasurablel physical parameter or minimizing physical quantity, thus ensureing under the prerequisite of detection speed, effectivelyImprove accuracy of detection.
The embodiment of the present invention has proposed a kind of self-capacitance detection mode of novelty, in the time that sensing unit is touched, and touch pointJust this sensing unit can be divided into two resistance, thereby in carrying out self-capacitance detection, consider that these two resistance just canTo determine the position of touch point on this sensing unit. The embodiment of the present invention simple in structure, and for an inductionUnit detects in the time of charge or discharge, not only can reduce RC constant, and save time and raise the efficiency, andAnd can also ensure that coordinate can not be offset. In addition, the embodiment of the present invention can also effectively improve the to-noise ratio of circuit, fallsLow circuit noise, improves the induction linearity. And, in testing process due to the sensing unit being touched is filledElectricity, therefore wherein can produce little electric current, can eliminate well Vcom level signal sensing unit in touch-screen is producedThe impact of raw self-capacitance, therefore can correspondingly eliminate screenmask layer and concerned process steps, thereby can strengthenWhen antijamming capability, further reduce costs.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become from the following descriptionObtain obviously, or recognize by practice of the present invention.
Brief description of the drawings
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments brightAobvious and easy understanding, wherein:
Fig. 1 is the structure chart of a kind of self-capacitance touch screen common in prior art;
Fig. 2 a is the structure chart of another kind of self-capacitance touch screen common in prior art;
Fig. 2 b is the detection schematic diagram of another kind of self-capacitance touch screen common in prior art;
Fig. 3 is the detection principle schematic 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 the rectangle sensing unit of the embodiment of the present invention is touched;
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;
Fig. 8 is the schematic diagram of the sensing unit of the embodiment of the present invention while being touched;
Fig. 9 a is another embodiment Touch-screen testing equipment structure chart of the present invention;
Fig. 9 b is another embodiment touch screen detection device structure chart of the present invention;
Figure 10 is the schematic diagram of the sensing unit of the embodiment of the present invention while being touched;
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.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein from start to finishSame or similar label represents same or similar element or has the element of identical or similar functions. Below by ginsengThe embodiment that examines accompanying drawing description is exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
The embodiment of the present invention has proposed a kind of self-capacitance detection mode of novelty, in the time that sensing unit is touched, and touch pointThis sensing unit can be divided into two resistance, in carrying out self-capacitance detection, consider that these two resistance just can be trueDetermine the position of touch point on this sensing unit. As shown in Figure 3, be the detection principle of embodiment of the present invention contactor control deviceSchematic diagram. In the time of this sensing unit of finger touch, will be equivalent to this sensing unit to be divided into two resistance these twoThe resistance of resistance is relevant to the position of touch point. For example, as described in Figure, when touch point and the first electrode are when nearer,Resistance R 1 is just less, and resistance R 2 is just larger; Otherwise, when touch point and the second electrode are when nearer, resistance R 1Just larger, and resistance R 2 is just less. Therefore, the present invention is by just determining tactile to the detection of resistance R 1 and R2Touch the some position on this sensing unit. In an embodiment of the present invention, detect in several ways resistance R 1 and R2,For example can be by detecting current detecting changing value, self-capacitance change detected value, the level letter of the first electrode and the second electrodeOne or more in number change detected value and charge variation amount, thus resistance R 1 He obtained according to these change detected valuesR2. And the present invention is by carrying out charging for twice to offset some immeasurablel thing to the self-capacitance being formed by touch pointThe measurement of reason parameter or minimizing physical quantity, improves certainty of measurement.
It should be noted that, in an embodiment of the present invention, above-mentioned the first electrode is identical with the function of the second electrode, andThe two can exchange, therefore in the above-described embodiments, and both can also can be from the second electrode detection from the first electrode detection,As long as needs have electric current through the first resistance and this requirement of the second resistance when can meeting in charging, electric discharge or detecting.
In an embodiment of the present invention, can apply corresponding voltage to multiple sensing units successively in the mode of scanning,In the time detecting, also can detect successively in the mode of scanning simultaneously.
As shown in Figure 4, be the touch detecting method flow chart of the embodiment of the present invention, this flow chart is in conjunction with shown in Fig. 3Schematic diagram together describes. The method comprises the following steps:
Step S401, applies high level signal and by the first electrode of a sensing unit in multiple sensing unitsTwo electrode groundings fill for the first time with the self-capacitance in the time that a sensing unit is touched, a sensing unit being producedElectricity. In this embodiment, apply high level signal Vcc to the first electrode.
If now this sensing unit is pointed or other objects touch, this sensing unit will produce self-capacitance C1 (ginsengAccording to Fig. 3), therefore just can charge to self-capacitance by the high level signal Vcc applying, be now applied to from electricityVoltage in appearance is V2=VccR2/ (R1+R2). In addition, in an embodiment of the present invention, by the charging to self-capacitance,Can also improve the accuracy of detection of self-capacitance.
In one embodiment of the invention, if this sensing unit is not touched, follow-up cannot detecting certainlyThe existence of electric capacity, therefore can judge that it is not touched.
Step S402, applies high level signal to the first electrode and second electrode of a sensing unit, or, toIn one electrode and the second electrode one applies high level signal and by disconnected another in the first electrode and the second electrodeOpen, so that self-capacitance is charged for the second time.
In embodiments of the present invention, can all apply high level signal to the first electrode and the second electrode; Or, to firstElectrode applies high level signal, and the second electrode is disconnected; Or, apply high level signal to the second electrode, and incite somebody to actionThe first electrode disconnects. Be pointed out that in addition, because the high level signal applying is known quantity, therefore apply for twiceHigh level signal can be identical or not identical, all do not affect derivation. In this embodiment, to the first electrode and/Or second electrode apply and high level signal Vcc identical in step S401. The voltage being now applied on self-capacitance isVcc。
Step S403, detects to obtain charging for the first time and fills for the second time from the first electrode or second electrode of correspondenceThe first change detected value between electricity. In an embodiment of the present invention, described correspondence refers to following situation, for example,In the time that the first electrode of a sensing unit and the second electrode all connect high level signal and charge, from the first electrode andTwo electrodes all can detect; As connect high level signal when the first electrode, when the second electrode disconnects, can only be from firstElectrode detection; Otherwise, when the second electrode connects high level signal, when the first electrode disconnects, can only be from the second electrode inspectionSurvey.
In an embodiment of the present invention, as long as the mode of charging is different from the mode of charging for the first time for the second time, just can drawPlay the variation of the quantity of electric charge in self-capacitance. In addition, after having detected, need self-capacitance to discharge to once fill on carrying outDischarge process.
In the present embodiment, suppose that the first change detected value is Δ Q1. Detect and become with the first change detected value and second belowChange value is that charge variation amount is that example is described, but can reaction resistance R1 and R2 between other of relation detect and becomeChange value, such as level signal, electric current etc. also all can adopt.
Wherein, Δ Q1=(Vcc-V2) C1=VccC1R1/ (R1+R2) (1)
Wherein, V2=VccR2/ (R1+R2), while now charging for the first time, the voltage of self-capacitance is V2, this self-capacitance electricityPressure can detect and obtain in the time charging for the first time.
Step S404, by the first electrode of a sensing unit and the second electrode grounding, or, by the first electrode andGround connection in two electrodes also disconnects another in the first electrode and the second electrode, so that self-capacitance is carried out to firstInferior electric discharge.
Particularly, can be by the first electrode of a sensing unit and the equal ground connection of the second electrode, or, the first electrode is connectGround, and the second electrode disconnects, or, by the second electrode grounding, and the first electrode is disconnected, so that self-capacitance is carried outElectric discharge for the first time.
Step S405, detects to obtain charging for the second time and puts for the first time from the first electrode or second electrode of correspondenceThe second change detected value between electricity.
In the present embodiment, suppose that the second change detected value is Δ Q2. The second change detected value need adopt and step S403In the first change detected be worth identical change detected value, be in embodiments of the present invention charge variation amount. EquallyGround, said " corresponding " is also relative concept, for example, in the time discharging for the first time, if the second electrode disconnects,Can only detect from the first electrode.
Wherein, Δ Q2=V2C1=VccC1R2/ (R1+R2) (2)
Step S406, calculates between self-capacitance to the first electrode according to the first change detected value and the second change detected valueThe proportionate relationship of the second resistance between the first resistance and self-capacitance to the second electrode, and according to the first resistance and the second electricityThe proportionate relationship of resistance is determined touch location. In one embodiment of the invention, through type (1) and (2) are representedSelf-capacitance charge variation amount can calculate the proportionate relationship of R1 and R2, due to the regular linear relation of figure,Can calculate the position of the abscissa at place, touch point, and the position at self-capacitance C1 place.
In an embodiment of the present invention, R1/R2=Δ Q1/ Δ Q2, therefore by the embodiment of the present invention just can obtain R1 andProportionate relationship between R2.
In an embodiment of the present invention, if sensing unit is door shape sensing unit or L shaped sensing unit, by theRatio between one resistance and the second resistance just can be determined the touch location on touch-screen, below with reference to concrete exampleSon describes in detail. But in other embodiments of the invention, if sensing unit be rectangle sensing unit or snakelike (butSee on the whole and be equivalent to rectangle) sensing unit, step S406 can only calculate the touch on touch-screen first directionPosition, this first direction can be the length direction (horizontal direction of for example touch-screen) of sensing unit.
If sensing unit is rectangle sensing unit or snakelike (but see be on the whole equivalent to rectangle) sensing unit, alsoNeed to be according to the location positioning of sensing unit the touch location in second direction. In one embodiment of the invention,First direction is the length direction of sensing unit, and second direction is the direction perpendicular to sensing unit, sensing unit levelArrange or vertically arrange.
In an embodiment of the present invention, self-capacitance detection module can be known self-capacitance detection module at present, therefore existsThis repeats no more.
In one embodiment of the invention, if adopt two self-capacitance detection modules, because two from electricityHold detection module and can share multiple devices, therefore can not increase the overall power of chip.
In one embodiment of the invention, sensing unit can take different shapes. Preferably, multiple disjointSensing unit is positioned at same layer, thereby in the situation that ensureing accuracy of detection, can greatly save cost.
As shown in Figure 5, the schematic diagram being touched for the rectangle sensing unit of the embodiment of the present invention. This sensing unit is squareShape, and the first direction of multiple sensing unit and described touch-screen is parallel to each other, and therefore touch location is at first directionOn touch location.
As shown in Figure 6 a, be the sensing unit structure chart of one embodiment of the invention. This sensing unit 200 comprises multiplePart I 230 and multiple parallel Part II 240, wherein, pass through Part II between adjacent Part I 230240 are connected, to form the first groove 1000 and second groove 2000 of multiple alternative arrangements, wherein, multiple first recessedThe opening direction of groove 1000 and multiple the second grooves 2000 is contrary. Preferably, Part II 240 is arranged along first directionRow. In one embodiment of the invention, multiple Part I 230 can be parallel to each other, also can be not parallel. And,Preferably, Part II 240 is rectangle. In other embodiments of the invention, Part I 230 also can be rectangle,But Part I 230 also can be other various shape. In this embodiment, increase resistance by Part I 230Impedance, thus the impedance that increases sensing unit 200 more easily detects the first resistance and the second resistance, furtherImprove accuracy of detection. And in this embodiment, preferably, the interval between Part II 240 is equal, thereby canImprove equably from the impedance of sensing unit, to improve accuracy of detection. In one embodiment of the invention,One direction is the length direction of sensing unit 200, and second direction is the direction perpendicular to sensing unit 200, particularly,Sensing unit 200 can be horizontally disposed with or vertically arrange.
In an embodiment of the present invention, the size of sensing unit 200 length directions and the size of substrate are basically identical, because ofThis contactor control device is simple in structure, easily manufactures, and low cost of manufacture.
In one embodiment of the invention, the first electrode 210 and the second electrode 220 respectively with multiple Part I 230In two Part I be connected. But the first electrode 210 and the second electrode in another embodiment of the present invention,220 are connected with two Part II in multiple Part II 240 respectively, as shown in Figure 6 b.
And, in an embodiment of the present invention, mutually vertical between Part II 240 and Part I 230, the twoBetween angle be preferably 90 degree, certainly also can select other angles. As shown in Figure 6 a, this sensing unit 200 is logicalCross multiple Part II 240 multiple Part I 230 are joined end to end, the first electrode 210 Hes of sensing unit 200The second electrode 220 is connected with the Part I 230 at two ends respectively. From overall structure, this sensing unit 200 isHave compared with the rectangle of aspect ratio. This it should be noted that, although in Fig. 6 a by sensing unit 200 along X-axis setting,But it will be understood by those skilled in the art that this sensing unit 200 also can be along Y-axis setting. By this induction listThe structure of unit can reduce noise effectively, improves the linearity of induction.
As shown in Figure 7a, be the sensing unit structure chart of another embodiment of the present invention. In this embodiment, this inductionUnit 200 can be a shape, and the length difference of each sensing unit 200 in multiple sensing unit 200, multiple inductionsMutually nested between unit 200. Wherein, each described sensing unit comprises Part III 250, disjoint the 4thPoints 260 and Part V 270. Preferably, Part III 250 is parallel with the first side 110 of substrate 100, the 4thPoints 260 parallel with the Second Edge 120 of substrate 100 with Part V 270, and Part IV 260 one end and the 3rdOne end of points 250 is connected, and one end of Part V 270 is connected with the other end of Part III 250. Sensing unit 200The other end of Part IV 260 there is the first electrode 210, the other end of Part V 270 has the second electrode 220,Wherein, each the first electrode 210 is all connected with the corresponding pin of touch-screen control chip with the second electrode 220.
In an embodiment of the present invention, the induction that the sensing unit outside so-called mutually nested referring to partly surrounds inner sideUnit for example as shown in Figure 7a, can reach larger coverage rate like this, and reduce fortune in ensureing precisionThe complexity of calculating, the response speed of raising touch-screen. Certainly those skilled in the art also can adopt according to the thought of Fig. 7 aOther mutually nested modes are arranged sensing unit. In one embodiment of the invention, each sensing unit 200Part III 250 is parallel with the Part III 250 of other sensing units 200, the 4th of each sensing unit 200Points 260 parallel with the Part IV 260 of other sensing units 200, the Part V 270 of each sensing unit 200Parallel with the Part V 270 of other sensing units 200. In one embodiment of the invention, sensing unit 200Part III 250, Part IV 260 and Part V 270 at least one is rectangle, preferably, Part III250, Part IV 260 and Part V 270 are rectangle. In this embodiment, due to rectangular configuration figure rule,Therefore in the time of finger lateral or longitudinal movement, the linearity is good, and in addition, the spacing between two rectangular configuration is identical, is convenient toCalculate, thereby improve computational speed.
In one embodiment of the invention, the Part IV 260 of each sensing unit 200 is long with Part V 270Degree equates.
In one embodiment of the invention, substrate 100 is rectangle, mutual between first side 110 and Second Edge 120Vertically, and mutually vertical between Part IV 260 and Part III 250, Part V 270 and Part III 250Between mutually vertical.
In one embodiment of the invention, the spacing phase between the Part III 250 of adjacent two sensing units 200Deng, the spacing between the Part IV 260 of adjacent two sensing units 200 equates, adjacent two sensing units 200Part V 270 between spacing equate. So just can by multiple sensing units 200 to touch-screen firstLimit 110 and Second Edge 120 are evenly divided, thereby improve arithmetic speed. Certainly in other embodiments of the invention,Spacing between the Part III 250 of adjacent two sensing units 200 also can be unequal, or, adjacent two inductionsSpacing between the Part IV 260 of unit 200 also can be unequal, as shown in Figure 7b. For example, due to user oftenThe centre that touches touch-screen, therefore can reduce the spacing between the sensing unit at touch screen center position, fromAnd the accuracy of detection in raising centre.
In one embodiment of the invention, multiple sensing units 200 are with respect to the central shaft Y symmetry of substrate 100,As shown in Figure 7a, central shaft Y is perpendicular to Part III 250, thereby is more conducive to improve precision.
As shown in Figure 7a, in this embodiment, the first electrode 210 of sensing unit 200 and second all positions of electrode 220On the first side 110 of substrate 100. In this embodiment, after the touch location on sensing unit being detected,Can obtain the touch location on touch-screen.
It should be noted that, above-mentioned Fig. 7 a is preferably embodiment of the present invention, and it can obtain larger coverage rate, butThat other embodiment of the present invention can carry out the variation that some are equal to Fig. 7 a, for example Part IV 260 and Part V270 can be uneven.
Sensing unit in the embodiment of the present invention adopts the structure of similar door shape, not only simple in structure, is convenient to make instituteLeaded all on one side same, design is convenient, reduces silver-colored slurry cost and makes easily, has very large to reducing production costHelp.
As shown in Figure 8, the schematic diagram while being touched for the sensing unit of the embodiment of the present invention. As can be seen from Figure 8, firstElectrode is that 210, the second electrodes are 220, and touch location is close to the second electrode, and the length of supposing sensing unit is 10Individual unit length, and sensing unit is divided into 10 parts equably, wherein, the length of sensing unit Part III 250 is4 unit lengths, the length of sensing unit Part IV 260 and Part V 270 is 3 unit lengths. Through inspectionSurvey, the ratio of knowing the first resistance and the second resistance is 4:1, the first electrode 210 to the length of touch location (by firstResistance embodies) be 80% of whole sensing unit length. In other words, touch point is positioned at distance the first electrode 210 places 8The position of individual unit length, knows, touch point is positioned at the position of distance the second electrode 220 2 unit lengths in place. WhenWhen finger is mobile, touch location can corresponding movement, therefore just can judge that by the conversion of touch location finger moves accordinglyMove track, thereby judge user's input instruction.
Can find out from the above example of Fig. 8, account form of the present invention is very simple, therefore can greatly improveThe reaction speed that touch-screen detects. In an embodiment of the present invention, finger or other objects can touch multiple inductions conventionallyUnit, now can first obtain each touch location in the multiple sensing units that are touched at this, then by asking flatEqual mode is calculated final touch location on touch-screen.
As shown in Fig. 9 a, it is another embodiment Touch-screen testing equipment structure chart of the present invention. In a reality of the present inventionExecute in example, the length of multiple sensing units increases gradually, and each described sensing unit comprises Part VI 280 andSeven parts 290. One end of Part VI 280 has the first electrode 210, one end of Part VII 290 and Part VI280 the other end is connected, and the other end of Part VII 290 has the second electrode 220.
Particularly, Part VI 280 is parallel with the first side 110 of substrate 100, Part VII 290 and substrate 100Second Edge 120 parallel, and first side 110 is adjacent with Second Edge 120. And each the first electrode 210 and the second electricityThe utmost point 220 is all connected with the corresponding pin of touch-screen control chip.
In a preferred embodiment of the invention, the Part VI 280 and other sensing units 200 of each sensing unit 200Part VI 280 parallel, the Part VII of each sensing unit 200 290 and the 7th of other sensing units 200Part 290 is parallel. Can effectively improve the coverage rate of sensing unit to touch-screen by such setting. At thisIn a bright embodiment, in the Part VI 280 of sensing unit 200, Part VII 290, at least one is rectangle,Preferably, Part VI 280, Part VII 290 are rectangle. In this embodiment, due to rectangular configuration figure rule, therefore in the time of finger lateral or longitudinal movement, the linearity is good, and in addition, the spacing between two rectangular configuration is identical,Be convenient to calculate.
Sensing unit in the touch screen detection device of the embodiment of the present invention adopts both-end to detect, i.e. the two ends of sensing unitAll there is electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, logical in the time touching detectionCross sensing unit self and can realize the location to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between the first resistance and the second resistanceFixed, therefore with respect to current rhombus or triangular design, due in the time determining touch location, without calculating certainlyThe size of electric capacity, and the size of self-capacitance can not affect the precision of touch location, and the dependence of self-capacitance accuracy of detection is fallenLow, thus certainty of measurement improved, improve the linearity. In addition, due to the Part V 270 of the embodiment of the present invention,In Part VI 280 and Part VII 290, any one all can be the rectangle of regular shape, therefore with respect to currentThe irregular shape such as rhombus or triangle, also can improve the linearity further.
In one embodiment of the invention, the Part VI 280 of each sensing unit and Part VII 290 length phasesDeng, thereby can improve arithmetic speed. Preferably, substrate 100 is rectangle, first side 110 and Second Edge 120 itBetween mutually vertical. First side 110 is mutually vertical with Second Edge 120, not only makes sensing unit design more regular,For example make between the Part VI 280 of sensing unit and Part VII 290 also mutually vertical, thereby improve touchingThe coverage rate of screen, and between Part VI 280 and Part VII 290, mutually vertically also can improve the linearity of detectionDegree.
In one embodiment of the invention, the spacing between adjacent two sensing units 200 equates. So just canFirst side 110 by multiple sensing units 200 to touch-screen and Second Edge 120 are evenly divided, thereby improve computingSpeed.
Certainly in another embodiment of the present invention, the spacing between adjacent two sensing units 200 also can not wait,As shown in Fig. 9 b, for example often touch the centre of touch-screen due to user, therefore can be by touch screen center positionSensing unit between spacing reduce, thereby improve the accuracy of detection in centre.
As shown in Fig. 9 a, in this embodiment, the first electrode 210 of sensing unit 200 is positioned at first of substrate 100On limit 110, the second electrode 220 is positioned on the Second Edge 120 of substrate 100, and first side 110 and Second Edge 120Mutually vertical. In this embodiment, after the touch location on sensing unit being detected, can obtain at touch-screenOn touch location.
As shown in figure 10, the schematic diagram while being touched for the sensing unit of the embodiment of the present invention. As can be seen from Figure 10,One electrode is that 210, the second electrodes are 220, and touch location, close to the second electrode 220, is supposed the length of sensing unitBe 10 unit lengths, and sensing unit is divided into 10 parts equably, wherein, the Part VI 280 of sensing unitLength be 5 unit lengths, the length of the Part VII 290 of sensing unit is 5 unit lengths. Through detection,The ratio of knowing the first resistance and the second resistance is 9:1, the first electrode 210 to the length of touch location (by the first resistanceEmbody) be 90% of whole sensing unit length. In other words, touch point is positioned at 9, distance the first electrode 210 placeThe position of unit length, knows, touch point is positioned at the position of distance the second electrode 220 1 unit length in place.
Can find out from the above example of Figure 10, account form of the present invention is very simple, therefore can greatly improveThe reaction speed that touch-screen detects.
In one embodiment of the invention, multiple sensing units 200 are positioned at same layer, therefore only need one deck ITOThereby, in ensureing precision, greatly reduce manufacturing cost.
Sensing unit in the touch screen detection device of the embodiment of the present invention adopts both-end to detect, i.e. the two ends of sensing unitAll there is electrode, and each electrode is all connected with the corresponding pin of touch-screen control chip, logical in the time touching detectionCross sensing unit self and can realize the location to touch point.
What is more important, the present invention realizes touch location really by calculating ratio between the first resistance and the second resistanceFixed, therefore with respect to current rhombus or triangular design, due in the time determining touch location, without calculating certainlyThe size of electric capacity, and the size of self-capacitance can not affect the precision of touch location, and the dependence of self-capacitance accuracy of detection is fallenLow, thus certainty of measurement improved, improve the linearity. In addition, due to the Part V 270 of the embodiment of the present invention,In Part VI 280 and Part VII 290, any one all can be the rectangle of regular shape, therefore with respect to currentThe irregular shape such as rhombus or triangle, also can improve the linearity further.
In sum, the embodiment of the present invention is by the electrode at sensing unit two ends is applied to level signal, if this inductionUnit is touched, can form self-capacitance by this sensing unit, and therefore the present invention can be to this by the level signal applyingSelf-capacitance charges, and according to the proportionate relationship between the first resistance and the second resistance determine in a first direction touchTouch position. For example in one embodiment of the invention, the basis of the proportionate relationship between the first resistance and the second resistance existsDuring to described self-capacitance charge/discharge, detect from described the first electrode and/or the second electrode the first detected value obtainingAnd second proportionate relationship between detected value calculate. Therefore from the first electrode and/or this self-capacitance of the second electrode detectionThe first detected value producing when charge/discharge and the second detected value. Like this, by the first detected value and the second detected value justCan react touch point and be positioned at the position of this sensing unit, thereby further determine the position of touch point at touch-screen.
For the sensing unit of Fig. 5 and Fig. 6, after having determined the touch location on first direction, also needThe further touch location in second direction according to the location positioning of the sensing unit being touched. In enforcement of the present inventionIn example, can be with reference to shown in Fig. 5 and 6, if detect the first detected value of certain sensing unit or the second detected value largeIn predetermined threshold value, illustrate that this sensing unit is touched. Suppose that second sensing unit (its ordinate is M) touchedTouch, the touch location in second direction is just the coordinate M of second sensing unit. Afterwards, then according to first partyTouch location in touch location and second direction is upwards determined the position of touch point on touch-screen.
Particularly, can adopt centroid algorithm to calculate the touch location of touch point in second direction, below to centroid algorithmSimply introduce.
In draw runner and touch pad application, be often necessary to determine finger more than the essential spacing of concrete sensing unitThe position of (or other capacitive object). The touch panel of finger on draw runner or touch pad is greater than any sense conventionallyAnswer unit. In order to adopt Yi Ge center to calculate the position after touch, this array is scanned to verify that institute is givenSensing station be effectively, be to be greater than default touch for the requirement of the adjacent sensing unit signal of someThreshold value. Finding after the strongest signal, this signal and those closing signals that is greater than touch threshold are all for calculatingCenter:
Wherein, locate the label of sensing unit centered by Ncent, n is the number that the sensing unit being touched detected, iFor the sequence number of the sensing unit that is touched, wherein i is more than or equal to 2.
For example, when finger touch is at Article 1 passage, its capacitance change is y1, the capacitance variations on Article 2 passageWhen amount is y3 for the capacitance change on y2 and Article 3 passage. Wherein second channel y2 capacitance change maximum. YCoordinate just can be at last:
As shown in figure 11, be the contactor control device schematic diagram of one embodiment of the invention. This contactor control device comprises by substrate 100The touch screen detection device, the touch-screen control chip 300 that form with multiple disjoint sensing units 200. Wherein,A part of pin in touch-screen control chip 300 is connected with the first electrode 210 of multiple sensing units 200, touchesAnother part pin in screen control chip 300 is connected with the second electrode 220 of multiple sensing units 200, and touchesScreen control chip 300 applies level signal to the first electrode 210 and/or second electrode 220 of multiple sensing units 200,The self-capacitance charging that this level signal produces to sensing unit 200 in the time that sensing unit 200 is touched.
As shown in figure 12, be the structure chart of embodiment of the present invention touch-screen control chip. Touch-screen control chip 300 wrapsDraw together charging module 310, discharge module 320, detection module 330 and control and computing module 340. Charging module 310In charging process for the first time, apply height to the first electrode 210 of a sensing unit 200 in multiple sensing unitsLevel signal and by the second electrode grounding 220 with in the time that a sensing unit 200 is touched to a sensing unit 200The self-capacitance producing charges for the first time; In charging process for the second time, to an induction in multiple sensing unitsThe first electrode 210 and second electrode 220 of unit 200 apply high level signal, or, to the first electrode 210 HesIn the second electrode 220 one applies high level signal and by another in the first electrode 210 and the second electrode 220Disconnect, so that self-capacitance is charged for the second time. Discharge module 320 at charging module 310 to self-capacitance secondAfter inferior charging, by the first electrode 210 of a sensing unit 200 and the second electrode 220 ground connection, or, byGround connection in one electrode 210 and the second electrode 220 by the first electrode 210 and described the second electrode 220Another disconnects so that self-capacitance is discharged for the first time. Detection module 330 is in the time discharging and recharging, from correspondence at every turnThe first electrode 210 or the second electrode 220 detect to obtain for the first time charging and first between charging for the second timeChange detected value, and detect to obtain charging and first for the second time from the first electrode 210 or second electrode of correspondenceThe second change detected value between inferior electric discharge. Control and computing module 340 for to charging module 310, discharge module320 and detection module 330 control, and calculate self-capacitance extremely according to the first change detected value and the second change detected valueThe first resistance between the first electrode and self-capacitance are to the proportionate relationship of the second resistance between described the second electrode, and rootProportionate relationship according to the first resistance and the second resistance is determined touch location. In an embodiment of the present invention, control and calculateModule 340 can apply corresponding voltage to multiple sensing units successively with the mode control charging module 310 of scanning,In the time detecting, also can detect successively in the mode of scanning simultaneously, or, the mode controlled discharge that also can scanThe self-capacitance that module 320 produces the sensing unit being touched in multiple sensing units successively discharges.
In one embodiment of the invention, the first change detected value, the second change detected value can be current detecting variationOne or more in value, self-capacitance change detected value, level signal change detected 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, the sensing unit 200 that control and computing module 340 are also touched for basisThe touch location of location positioning in second direction, and according in the touch location on first direction and second directionTouch location is determined the position of described touch point on touch-screen. Particularly, control and computing module 340 pass through barycenterAlgorithm is determined the touch location in described second direction.
In one embodiment of the invention, first direction is the length direction of sensing unit 200, and second direction is for hanging downStraight in the direction of sensing unit 200 length directions, sensing unit horizontal parallel arranges or vertical parallel setting.
In a preferred embodiment of the invention, multiple disjoint sensing units are positioned at same layer, thereby are ensureingUnder the prerequisite of accuracy of detection, effectively reduce manufacturing cost.
The invention allows for a kind of portable electric appts, comprise contactor control device as above.
The embodiment of the present invention is by the electrode at sensing unit two ends is applied to level signal, if this sensing unit is touched,Can form self-capacitance by this sensing unit, therefore the present invention can fill this self-capacitance by the level signal applyingElectricity, and determine the touch location on touch-screen according to the proportionate relationship between the first resistance and the second resistance. And by thisThe detection mode that self-capacitance is carried out to twice charging of inventive embodiments, with offset some immeasurablel physical parameter orPerson reduces the measurement of physical quantity, thereby is ensureing, under the prerequisite of detection speed, effectively to improve accuracy of detection.
The embodiment of the present invention has proposed a kind of self-capacitance detection mode of novelty, in the time that sensing unit is touched, and touch pointJust this sensing unit can be divided into two resistance, thereby in carrying out self-capacitance detection, consider that these two resistance just canTo determine the position of touch point on this sensing unit. The embodiment of the present invention simple in structure, and for an inductionUnit, can carry out charge or discharge from its first electrode and/or the second electrode, and carry out in the time of charge or dischargeDetect, not only can reduce RC constant, save time and raise the efficiency, and can ensure that coordinate can not be offset. ThisOutward, the embodiment of the present invention can also effectively improve the to-noise ratio of circuit, reduces circuit noise, improves the induction linearity.And, in testing process, due to the sensing unit being touched is charged, therefore wherein can produce little electric current, energyEnough eliminate well the impact of Vcom level signal on the self-capacitance of sensing unit generation in touch-screen, therefore can phaseShould eliminate screenmask layer and concerned process steps in ground, thereby can in having strengthened antijamming capability, further be lowered intoThis.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure, material orPerson's feature is contained at least one embodiment of the present invention or example. In this manual, the signal to above-mentioned termProperty statement not necessarily refers to identical embodiment or example. And, the specific features of description, structure, material orFeature can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, canUnderstand without departing from the principles and spirit of the present invention can to these embodiment carry out multiple variation, amendment,Replace and modification, scope of the present invention is by claims and be equal to and limit.
Claims (21)
1. a touch detecting method for touch-screen, is characterized in that, described touch-screen comprises multiple disjoint inductionsUnit, the two ends of each sensing unit have respectively the first electrode and the second electrode, said method comprising the steps of:
Apply high level signal and by the second electrode to the first electrode of a sensing unit in described multiple sensing unitsGround connection is filled for the first time with the self-capacitance in the time that a described sensing unit is touched, a described sensing unit being producedElectricity;
The first electrode and the second electrode to a sensing unit in described multiple sensing units apply high level signal,Or, to one in described the first electrode and described the second electrode apply high level signal and will described the first electrode withAnother in described the second electrode disconnects, so that described self-capacitance is charged for the second time;
Charging and for the second time described for the first time described in detecting to obtain from described first electrode of correspondence or the second electrodeThe first change detected value between charging;
By the first electrode of a described sensing unit and the second electrode grounding, or, by described the first electrode and described inGround connection in the second electrode also disconnects another in described the first electrode and described the second electrode, with to describedSelf-capacitance discharges for the first time;
Charging and for the first time described for the second time described in detecting to obtain from described first electrode of correspondence or the second electrodeThe second change detected value between electric discharge;
Calculate described self-capacitance between described the first electrode according to described the first change detected value and the second change detected valueThe first resistance and described self-capacitance to the proportionate relationship of the second resistance between described the second electrode; And
Determine touch location according to the proportionate relationship between described the first resistance and described the second resistance.
2. the touch detecting method of touch-screen as claimed in claim 1, is characterized in that, described the first change detectedValue and the second change detected value be current detecting changing value, self-capacitance change detected value, level signal change detected value andOne or more in charge variation amount.
3. the touch detecting method of touch-screen as claimed in claim 1, is characterized in that, described sensing unit is squareShape, and the first direction of described multiple sensing unit and described touch-screen is parallel to each other, and described touch location is touch objectsThe touch location of body on described first direction.
4. the touch detecting method of touch-screen as claimed in claim 3, is characterized in that, described sensing unit comprises:
Multiple Part I and multiple parallel Part II, wherein, described in passing through between adjacent described Part IPart II is connected, to form the first groove and second groove of multiple alternative arrangements, wherein, described multiple first recessedThe opening direction of groove and described multiple the second grooves is contrary, and described touch location is for touching object on described first directionTouch location.
5. the touch detecting method of the touch-screen as described in claim 3 or 4, is characterized in that, also comprises:
Touch location according to the location positioning of the described sensing unit being touched in second direction; And
Determine that according to the touch location in touch location and second direction on described first direction touch point is on touch-screenPosition.
6. the touch detecting method of touch-screen as claimed in claim 5, is characterized in that, in described second directionTouch location is determined by centroid algorithm.
7. touch detecting method as claimed in claim 5, is characterized in that, described first direction is that described induction is singleThe length direction of unit, described second direction is the direction perpendicular to described sensing unit, described sensing unit horizontal parallelArrange or vertical parallel setting.
8. the touch detecting method of touch-screen as claimed in claim 1, is characterized in that, described sensing unit comprises:
Part III, one end of described Part III has described the first electrode;
Part IV, one end of described Part IV is connected with the other end of described Part III, described Part IVThe other end has described the second electrode.
9. the touch detecting method of touch-screen as claimed in claim 1, is characterized in that, described sensing unit comprises:
Part V;
Disjoint Part VI and Part VII, described Part VI one end is connected with one end of described Part V,One end of described Part VII is connected with the other end of described Part V, described in the other end of described Part VI hasThe first electrode, and the other end of described Part VII has described the second electrode.
10. a contactor control device, is characterized in that, comprising:
Substrate;
Multiple disjoint sensing units, described multiple sensing units are formed on described substrate, and each induction is singleThe two ends of unit have respectively the first electrode and the second electrode;
Touch-screen control chip, described touch-screen control chip comprises charging module, discharge module, detection module and controlSystem and computing module, wherein,
Described charging module, in charging process for the first time, to an induction in described multiple sensing unitsThe first electrode of unit apply high level signal and by the second electrode grounding to be touched at a described sensing unitIn time, charges for the first time to the self-capacitance of described sensing unit generation; In charging process for the second time, to instituteThe first electrode and the second electrode of stating a sensing unit in multiple sensing units apply high level signal, or,Apply high level signal and by described the first electrode and the second electricity to one in described the first electrode and the second electrodeAnother extremely disconnects, so that described self-capacitance is charged for the second time;
Described discharge module, for after described charging module charges for the second time to described self-capacitance, by instituteState the first electrode and second electrode grounding of a sensing unit, or, by described the first electrode and described the second electricityGround connection extremely and by another in described the first electrode and described the second electrode disconnect with to described from electricityHold and discharge for the first time,
Described detection module, detects to obtain described for described the first electrode from correspondence or the second electrodeOnce charging and described the first change detected value between charging for the second time, and from described first electrode of correspondence orCharging for the second time and described the second change detected between electric discharge for the first time described in the second electrode detects to obtainValue; With
Control and computing module, for described charging module, discharge module, detection module are controlled, and rootCalculate described self-capacitance to first between described the first electrode according to the first change detected value and the second change detected valueResistance and described self-capacitance be to the proportionate relationship between the second resistance between described the second electrode, and according to described theProportionate relationship between one resistance and described the second resistance is determined touch location.
11. contactor control devices as claimed in claim 10, is characterized in that, described the first change detected value and the second inspectionSurveying changing value is current detecting changing value, self-capacitance change detected value, level signal change detected value and charge variation amountIn one or more.
12. contactor control devices as claimed in claim 10, is characterized in that, described detection module is capacitive detection module.
13. contactor control devices as claimed in claim 10, is characterized in that, described sensing unit is rectangle, and described inThe first direction of multiple sensing units and described touch-screen is parallel to each other, and described touch location is on described first directionTouch location.
14. contactor control devices as claimed in claim 13, is characterized in that, described sensing unit comprises:
Multiple Part I and multiple parallel Part II, wherein, described in passing through between adjacent described Part IPart II is connected, to form the first groove and second groove of multiple alternative arrangements, wherein, described multiple first recessedThe opening direction of groove and described multiple the second grooves is contrary, and described touch location is for touching object on described first directionTouch location.
15. contactor control devices as described in claim 13 or 14, is characterized in that,
Described control and computing module, also for the location positioning of the sensing unit that is touched described in basis in second directionOn touch location, and according to the touch location in touch location and second direction on described first direction determine touchThe position of point on touch-screen.
16. contactor control devices as claimed in claim 15, is characterized in that, described control and computing module pass through barycenterAlgorithm is determined the touch location in described second direction.
17. contactor control devices as claimed in claim 15, is characterized in that, described first direction is described sensing unitLength direction, described second direction is the direction perpendicular to described sensing unit, described sensing unit horizontal parallel is establishedPut or vertical parallel setting.
18. contactor control devices as claimed in claim 10, is characterized in that, described multiple disjoint sensing units positionIn same layer.
19. contactor control devices as claimed in claim 10, is characterized in that, described sensing unit comprises:
Part III, one end of described Part III has described the first electrode;
Part IV, one end of described Part IV is connected with the other end of described Part III, described Part IVThe other end has described the second electrode.
20. contactor control devices as claimed in claim 10, is characterized in that, described sensing unit comprises:
Part V;
Disjoint Part VI and Part VII, described Part VI one end is connected with one end of described Part V,One end of described Part VII is connected with the other end of described Part V, described in the other end of described Part VI hasThe first electrode, and the other end of described Part VII has described the second electrode.
21. 1 kinds of portable electric appts, is characterized in that, comprise the touch-control as described in claim 10-20 any oneDevice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459293.6A CN102902429B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110211018.2 | 2011-07-26 | ||
| CN201110211018 | 2011-07-26 | ||
| CN2011102109594 | 2011-07-26 | ||
| CN201110210959 | 2011-07-26 | ||
| CN201110210959.4 | 2011-07-26 | ||
| CN2011102110182 | 2011-07-26 | ||
| CN201110459293.6A CN102902429B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102902429A CN102902429A (en) | 2013-01-30 |
| CN102902429B true CN102902429B (en) | 2016-05-04 |
Family
ID=47169405
Family Applications (40)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205732224U Expired - Lifetime CN202795309U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic device |
| CN2011205737694U Expired - Lifetime CN202548807U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic equipment |
| CN2011205732173U Expired - Lifetime CN202548804U (en) | 2011-07-26 | 2011-12-31 | Touch device and portable electronic device |
| CN201110459449.0A Expired - Fee Related CN102902436B (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 Expired - Fee Related CN102902431B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459482.3A Expired - Fee Related CN102902439B (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 |
| CN201110459466.4A Expired - Fee Related CN102902437B (en) | 2011-07-26 | 2011-12-31 | Touch-screen testing equipment and contactor control device |
| CN201110459316.3A Expired - Fee Related CN102902432B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459473.4A Expired - Fee Related CN102902438B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method, touch screen detection device and contactor control device |
| CN201110459115.3A Expired - Fee Related CN102902427B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN2011205734304U Expired - Lifetime CN202795311U (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 |
| CN201110459486.1A Expired - Fee Related CN102902440B (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 |
| 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 |
| CN201110459367.6A Expired - Fee Related CN102902434B (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 |
| CN2011205736916U Expired - Lifetime CN202548806U (en) | 2011-07-26 | 2011-12-31 | Touch control apparatus and portable electronic equipment |
| CN201110459295.5A Expired - Fee Related CN102902430B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459408.1A Expired - Fee Related CN102902435B (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 |
| CN2011205737919U Expired - Lifetime CN202649984U (en) | 2011-07-26 | 2011-12-31 | Touch screen detection device, touch control device, and portable electronic device |
| CN201110459292.1A Expired - Fee Related CN102902428B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN2011205733797U Expired - Lifetime CN202795310U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic device |
| CN201110459293.6A Expired - Fee Related CN102902429B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201220134083XU Expired - Lifetime CN202649960U (en) | 2011-07-26 | 2012-04-01 | Portable electric equipment, touch detection assembly and touch control device |
| 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 |
| 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 |
| 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 |
| CN2012201345316U Expired - Lifetime CN202795315U (en) | 2011-07-26 | 2012-04-01 | Touching detection assembly and touching control device and portable type electronic device |
| CN2012201340878U Expired - Lifetime CN202649961U (en) | 2011-07-26 | 2012-04-01 | Touch detection assembly, touch control device and portable electric equipment |
| 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 |
| CN201210093646.XA Expired - Fee Related CN102902398B (en) | 2011-07-26 | 2012-04-01 | Portable electric appts, touch detection components and contactor control device |
| 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 |
Family Applications Before (27)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205732224U Expired - Lifetime CN202795309U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic device |
| CN2011205737694U Expired - Lifetime CN202548807U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic equipment |
| CN2011205732173U Expired - Lifetime CN202548804U (en) | 2011-07-26 | 2011-12-31 | Touch device and portable electronic device |
| CN201110459449.0A Expired - Fee Related CN102902436B (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 Expired - Fee Related CN102902431B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459482.3A Expired - Fee Related CN102902439B (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 |
| CN201110459466.4A Expired - Fee Related CN102902437B (en) | 2011-07-26 | 2011-12-31 | Touch-screen testing equipment and contactor control device |
| CN201110459316.3A Expired - Fee Related CN102902432B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459473.4A Expired - Fee Related CN102902438B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method, touch screen detection device and contactor control device |
| CN201110459115.3A Expired - Fee Related CN102902427B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN2011205734304U Expired - Lifetime CN202795311U (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 |
| CN201110459486.1A Expired - Fee Related CN102902440B (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 |
| 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 |
| CN201110459367.6A Expired - Fee Related CN102902434B (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 |
| CN2011205736916U Expired - Lifetime CN202548806U (en) | 2011-07-26 | 2011-12-31 | Touch control apparatus and portable electronic equipment |
| CN201110459295.5A Expired - Fee Related CN102902430B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN201110459408.1A Expired - Fee Related CN102902435B (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 |
| CN2011205737919U Expired - Lifetime CN202649984U (en) | 2011-07-26 | 2011-12-31 | Touch screen detection device, touch control device, and portable electronic device |
| CN201110459292.1A Expired - Fee Related CN102902428B (en) | 2011-07-26 | 2011-12-31 | Touch detecting method and contactor control device |
| CN2011205733797U Expired - Lifetime CN202795310U (en) | 2011-07-26 | 2011-12-31 | Touch control device and portable electronic device |
Family Applications After (12)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220134083XU Expired - Lifetime CN202649960U (en) | 2011-07-26 | 2012-04-01 | Portable electric equipment, touch detection assembly and touch control device |
| 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 |
| 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 |
| 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 |
| CN2012201345316U Expired - Lifetime CN202795315U (en) | 2011-07-26 | 2012-04-01 | Touching detection assembly and touching control device and portable type electronic device |
| CN2012201340878U Expired - Lifetime CN202649961U (en) | 2011-07-26 | 2012-04-01 | Touch detection assembly, touch control device and portable electric equipment |
| 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 |
| CN201210093646.XA Expired - Fee Related CN102902398B (en) | 2011-07-26 | 2012-04-01 | Portable electric appts, touch detection components and contactor control device |
| 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 |
Country Status (3)
| Country | Link |
|---|---|
| CN (40) | CN202795309U (en) |
| TW (14) | TWI475437B (en) |
| WO (7) | WO2013013635A1 (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202795309U (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 |
| US9542023B2 (en) | 2013-08-07 | 2017-01-10 | Synaptics Incorporated | Capacitive sensing using matrix electrodes driven by routing traces disposed in a source line layer |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| WO2016183440A1 (en) | 2015-05-13 | 2016-11-17 | Lukla Llc | 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 sensitive 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 |
| CN114361148A (en) * | 2020-09-30 | 2022-04-15 | Tcl科技集团股份有限公司 | Pixel structure, lamp panel, display device and driving method of pixel structure |
Family Cites Families (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1091350A (en) * | 1996-09-10 | 1998-04-10 | Tokyo Cosmos Electric Co Ltd | Touch panel |
| JP3220405B2 (en) * | 1997-02-20 | 2001-10-22 | アルプス電気株式会社 | Coordinate input device |
| 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 |
| JP2006504948A (en) * | 2002-10-31 | 2006-02-09 | フィリップ、ハラルド | Capacitive position sensor using charge transfer |
| 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 conduction structure of touch panel |
| CN101672660B (en) * | 2008-04-10 | 2013-01-02 | 爱特梅尔公司 | 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 | Capacitive charge compensation method for touch sensing device |
| CN101751172A (en) * | 2008-12-08 | 2010-06-23 | 上海天马微电子有限公司 | Touch position detection method and touch screen |
| 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 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 | Capacitive Sensing Device and Manufacturing Method |
| CN101840293B (en) * | 2010-01-21 | 2012-03-21 | 宸鸿科技(厦门)有限公司 | Scanning method for projected capacitive touch panels |
| 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 its coordinate data processing method |
| 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 its repair method |
| 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 |
| CN202795309U (en) * | 2011-07-26 | 2013-03-13 | 比亚迪股份有限公司 | Touch control device and portable electronic device |
| 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 |
-
2011
- 2011-12-31 CN CN2011205732224U patent/CN202795309U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205737694U patent/CN202548807U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205732173U patent/CN202548804U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459449.0A patent/CN102902436B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459333.7A patent/CN102902433B/en active Active
- 2011-12-31 CN CN201110459313.XA patent/CN102902431B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459482.3A patent/CN102902439B/en not_active Expired - Fee Related
- 2011-12-31 CN CN2011205738593U patent/CN202795285U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459466.4A patent/CN102902437B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459316.3A patent/CN102902432B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459473.4A patent/CN102902438B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459115.3A patent/CN102902427B/en not_active Expired - Fee Related
- 2011-12-31 CN CN2011205734304U patent/CN202795311U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205738057U patent/CN202795313U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459486.1A patent/CN102902440B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201120573486XU patent/CN202649983U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205737976U patent/CN202600661U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205734681U patent/CN202795312U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459367.6A patent/CN102902434B/en not_active Expired - Fee Related
- 2011-12-31 CN CN2011205734658U patent/CN202548805U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205736916U patent/CN202548806U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459295.5A patent/CN102902430B/en not_active Expired - Fee Related
- 2011-12-31 CN CN201110459408.1A patent/CN102902435B/en not_active Expired - Fee Related
- 2011-12-31 CN CN2011205736297U patent/CN202600660U/en not_active Expired - Lifetime
- 2011-12-31 CN CN2011205737919U patent/CN202649984U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459292.1A patent/CN102902428B/en not_active Expired - Fee Related
- 2011-12-31 CN CN2011205733797U patent/CN202795310U/en not_active Expired - Lifetime
- 2011-12-31 CN CN201110459293.6A patent/CN102902429B/en not_active Expired - Fee Related
-
2012
- 2012-04-01 CN CN201220134083XU patent/CN202649960U/en not_active Expired - Lifetime
- 2012-04-01 CN CN2012201340971U patent/CN202795314U/en not_active Expired - Lifetime
- 2012-04-01 CN CN2012201345443U patent/CN202615359U/en not_active Expired - Lifetime
- 2012-04-01 CN CN201210093649.3A patent/CN102902441B/en not_active Expired - Fee Related
- 2012-04-01 CN CN201210093658.2A patent/CN102902442B/en not_active Expired - Fee Related
- 2012-04-01 CN CN201210093687.9A patent/CN102902399B/en not_active Expired - Fee Related
- 2012-04-01 CN CN2012201345316U patent/CN202795315U/en not_active Expired - Lifetime
- 2012-04-01 CN CN2012201340878U patent/CN202649961U/en not_active Expired - Lifetime
- 2012-04-01 CN CN2012201341090U patent/CN202870787U/en not_active Expired - Lifetime
- 2012-04-01 CN CN201210094078.5A patent/CN102902444B/en not_active Expired - Fee Related
- 2012-04-01 CN CN201210093646.XA patent/CN102902398B/en not_active Expired - Fee Related
- 2012-04-01 CN CN201210093681.1A patent/CN102902443B/en not_active Expired - Fee Related
- 2012-07-17 TW TW101125694A patent/TWI475437B/en not_active IP Right Cessation
- 2012-07-17 TW TW101213750U patent/TWM449305U/en not_active IP Right Cessation
- 2012-07-18 TW TW101213834U patent/TWM464745U/en unknown
- 2012-07-18 TW TW101125838A patent/TWI479399B/en not_active IP Right Cessation
- 2012-07-18 TW TW101125832A patent/TWI483164B/en not_active IP Right Cessation
- 2012-07-18 TW TW101125847A patent/TWI494833B/en not_active IP Right Cessation
- 2012-07-18 TW TW101213838U patent/TWM457238U/en unknown
- 2012-07-18 TW TW101213854U patent/TWM450007U/en unknown
- 2012-07-23 TW TW101126427A patent/TWI486848B/en not_active IP Right Cessation
- 2012-07-23 TW TW101214182U patent/TWM451595U/en unknown
- 2012-07-26 WO PCT/CN2012/079221 patent/WO2013013635A1/en active Application Filing
- 2012-07-26 WO PCT/CN2012/079223 patent/WO2013013636A1/en active Application Filing
- 2012-07-26 TW TW101214478U patent/TWM470979U/en unknown
- 2012-07-26 TW TW101126936A patent/TWI482074B/en not_active IP Right Cessation
- 2012-07-26 WO PCT/CN2012/079220 patent/WO2013013634A1/en active Application Filing
- 2012-07-26 WO PCT/CN2012/079182 patent/WO2013013624A1/en active Application Filing
- 2012-07-26 TW TW101126935A patent/TWI485604B/en not_active IP Right Cessation
- 2012-07-26 WO PCT/CN2012/079186 patent/WO2013013625A1/en active Application Filing
- 2012-07-26 WO PCT/CN2012/079224 patent/WO2013013637A1/en active Application Filing
- 2012-07-26 WO PCT/CN2012/079192 patent/WO2013013627A1/en active Application Filing
- 2012-07-26 TW TW101214479U patent/TWM453897U/en unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102902429B (en) | Touch detecting method and contactor control device | |
| CN202267944U (en) | Touch screen detecting device and touch control device | |
| CN202422046U (en) | Induction unit, touch screen detection device and touch control device | |
| 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: 20191227 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 |