CN102566845A - Report rate increasing touch system and method for increasing report rate of touch system - Google Patents
Report rate increasing touch system and method for increasing report rate of touch system Download PDFInfo
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- CN102566845A CN102566845A CN2012100017126A CN201210001712A CN102566845A CN 102566845 A CN102566845 A CN 102566845A CN 2012100017126 A CN2012100017126 A CN 2012100017126A CN 201210001712 A CN201210001712 A CN 201210001712A CN 102566845 A CN102566845 A CN 102566845A
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Abstract
The invention relates to a touch system and a method for increasing report rate. A readout circuit sequentially transmits driving signals to at least each two first sensing lines of a plurality of first sensing lines of a touch panel. The report rate increasing touch system comprises the touch panel and the readout circuit. The touch panel is used for being touched by at least one object, a first axial direction of the touch panel is provided with N first sensing lines, and a second axial direction of the touch panel is provided with M second sensing lines. The readout circuit is used for sequentially transmitting the driving signals to at least each two first sensing lines of the N first sensing lines, sequentially receiving sensing signals corresponding to the at least each two first sensing lines through the M second sensing lines, and calculating and outputting the coordinate of the at least one object touching the touch panel to a main unit according to the sensing signals corresponding to the at least each two first sensing lines, wherein the driving signals corresponding to the at least each two first sensing lines are partially superposed.
Description
Technical field
The invention relates to a kind of method that increases the touch-control system of newspaper point rate and increase touch-control system newspaper point rate; Especially a kind of sensing circuit that utilizes of finger is launched the driving signal at least two first sense wires whenever in a plurality of first sense wires of contact panel in regular turn simultaneously, to promote the touch-control system and the method for newspaper point rate.
Background technology
In existing contact panel, the contact panel that holds formula mutually is the contact panel for main flow.Please with reference to the 1st figure, the 1st figure is the synoptic diagram for the contact panel 100 that mutual appearance formula is described.Shown in the 1st figure, when the type of drive of contact panel 100 is for Y direction (or X-direction) is carried out the scanning of voltage or electric current, then at the sensing signal of X-direction (or Y direction) intercepting touch points.Y direction is that the mode that scans in regular turn from sense wire Y1 to sense wire YN is carried out, but X-direction then is that to judge the coordinate of touch points, wherein N, M are positive integer at the sensing signal of whole over glaze to (sense wire X1 is to sense wire XM) intercepting simultaneously touch points.But when a plurality of objects were touched contact panel 100, the motion track of a plurality of objects can be level and smooth inadequately because of the rate decline of newspaper point on the contact panel 100, causes the aliasing on the contact panel 100.
Summary of the invention
A purpose of the present invention provides a kind of touch-control system that increases newspaper point rate.This touch-control system comprises a contact panel and a sensing circuit.This contact panel is in order to let at least one object touching; One first of this contact panel has N bar first sense wire and one second on axially and has M bar second sense wire on axially; Corresponding M sensing cell of each first sense wire wherein; Corresponding N the sensing cell of each second sense wire, and N, M are positive integer; This sensing circuit is in order at least two first sense wires whenever in this N bar first sense wire are launched the driving signal simultaneously; See through this M bar second sense wire in regular turn and receive sensing signal corresponding to these at least two first sense wires; And according to sensing signal corresponding to these at least two first sense wires; Calculate and export coordinate to a main frame of at least one object of this contact panel of touching, wherein the driving signal corresponding to these at least two first sense wires is partly overlapping.
Another object of the present invention provides a kind of method that increases touch-control system newspaper point rate; One first of the contact panel of this touch-control system has N bar first sense wire and one second on axially and has M bar second sense wire on axially; Corresponding M sensing cell of each first sense wire wherein; Corresponding N the sensing cell of each second sense wire, and N, M are positive integer.This method comprises the following step: at least two first sense wires whenever in this N bar first sense wire are launched the driving signal simultaneously; See through this M bar second sense wire in regular turn and receive sensing signal corresponding to these at least two first sense wires; According to sensing signal, calculate and export the coordinate of at least one object of this contact panel of touching corresponding to these at least two first sense wires.
The present invention provides a kind of method that increases the touch-control system of newspaper point rate and increase touch-control system newspaper point rate.This touch-control system is to utilize a microcontroller processor to control a multiplexer with this method; At least two first sense wires whenever in N bar first sense wire of a contact panel are launched the driving signal simultaneously, and see through the sensing signal of M bar second sense wire reception of this contact panel corresponding to these at least two first sense wires in regular turn.Compared to prior art, because can repaying more touch point in a schedule time, the present invention gives a main frame, so the present invention can improve the newspaper point rate of this touch-control system.So, when this contact panel of a plurality of objects touching, the motion track of this a plurality of objects can be because the rising of newspaper point rate on this contact panel, and seems level and smooth.
Description of drawings
Fig. 1 is the synoptic diagram for the contact panel that mutual appearance formula is described.
Fig. 2 is the synoptic diagram that increases the touch-control system of newspaper point rate for one embodiment of the invention explanation is a kind of.
Fig. 3 launches to drive signal and control multiplexer to per two first sense wires in 4 first sense wires for explanation microcontroller processor control multiplexer to receive the sequential synoptic diagram corresponding to the sensing signal of 4 first sense wires through M bar second sense wire in regular turn simultaneously.
Fig. 4 is the process flow diagram that increases the method for touch-control system newspaper point rate for the another embodiment of the present invention explanation is a kind of.
[primary clustering symbol description]
100,202 contact panels
200 touch-control systems
204 sensing circuits
2042 multiplexers
2044 microcontroller processors
2046 computing units
2048 analog-to-digital conversion circuits
250 main frames
DS1, DS2, DS3, DS4 drive signal
FS1, FS2, FS3, FS4, FSN first sense wire
P1, P2 position
SS1, SS2, SSM second sense wire
T1, T2, T3, T4 period
Y1, Y2, YN-1, YN, X1, sense wire
X2、XM-1、XM
400 to 410 steps.
Embodiment
Please with reference to Fig. 2, Fig. 2 is the synoptic diagram that increases the touch-control system 200 of newspaper point rate for one embodiment of the invention explanation is a kind of.Touch-control system 200 comprises a contact panel 202 and a sensing circuit 204.Contact panel 202 is in order to let at least one object touching; One first of contact panel 202 has the N bar first sense wire FS1-FSN and one second on axially and has the M bar second sense wire SS1-SSM on axially; N sensing cell of each second sense wire correspondence among corresponding M the sensing cell of each first sense wire among the N bar first sense wire FS1-FSN, the M bar second sense wire SS1-SSM wherein; And N, M be positive integer, and according to the specification of the characteristic of contact panel 202 and sensing circuit 204 and different.In addition, contact panel 202 is to can be a projecting type capacitor contact panel or an electric resistance touch-control panel, wherein when contact panel 202 be during for the projecting type capacitor contact panel, contact panel 202 is to be a mutual inductance type capacitance touching control panel.Sensing circuit 204 is in order to per two first sense wires among the N bar first sense wire FS1-FSN are launched the driving signal simultaneously; See through the M bar second sense wire SS1-SSM then in regular turn and receive sensing signal (raw data (raw data)) corresponding to per two first sense wires; And according to sensing signal corresponding to per two first sense wires; Calculate and export coordinate to a main frame 250 of at least one object of touching contact panel 202, wherein the driving signal corresponding to two first sense wires is to overlap.But the present invention is not limited to sensing circuit 204 launches the driving signal to per two first sense wires among the N bar first sense wire FS1-FSN in regular turn simultaneously, that is sensing circuit 204 can be launched the driving signal at least two first sense wires whenever among the N bar first sense wire FS1-FSN in regular turn simultaneously.In addition, in another embodiment of the present invention, touch-control system 200 is to comprise main frame 250.
As shown in Figure 2, sensing circuit 204 comprises a multiplexer 2042, a microcontroller processor 2044, a computing unit 2046 and an analog-to-digital conversion circuit 2048.Shown in the 2nd figure; Microcontroller processor 2044 is to be coupled to multiplexer 2042; Per two first sense wires in order among 2042 pairs of N bars of control multiplexer, the first sense wire FS1-FSN are launched the driving signal simultaneously, and see through the sensing signal of M bar second sense wire SS1-SSM reception corresponding to per two first sense wires in regular turn; Computing unit 2046 is to be coupled to multiplexer 2042, in order to according to the sensing signal corresponding to per two first sense wires, calculates capacitance variation, magnitude of voltage variation and/or the electric field value variation of the sensing cell of corresponding per two first sense wires; Analog-to-digital conversion circuit 2048 is to be coupled to computing unit 2046; Change and/or electric field value changes in order to capacitance variation, magnitude of voltage, produce the digital signal of the sensing cell of corresponding per two first sense wires according to the sensing cell of per two first sense wires of correspondence; Wherein microcontroller processor 2044 is the digital signals according to the sensing cell of per two first sense wires of correspondence, calculates and export coordinate to the main frame 250 (for example a flat computer, an intelligent mobile phone or a touch electronics product) of at least one object of touching contact panel 202.Then, main frame 250 can be carried out a corresponding action according to the coordinate of at least one object of touching contact panel 202.For example, main frame 250 can be carried out a corresponding programs according to the coordinate of at least one object of touching contact panel 202.
Please with reference to Fig. 3; Fig. 3 drives signal DS1, DS2 for the first sense wire FS1, FS2 among 2042 couples 4 first sense wire FS1 of explanation microcontroller processor 2044 control multiplexers, FS2, FS3, the FS4 launch simultaneously; Launch driving signal DS3, DS4 simultaneously with the first sense wire FS3, FS4, and control multiplexer 2042 sees through the sequential synoptic diagram of M bar second sense wire SS1-SSM reception corresponding to the sensing signal of 4 first sense wire FS1, FS2, FS3, FS4 in regular turn.Shown in the 3rd figure; (multiplexer 2042 drives earlier the first sense wire FS1, FS2 simultaneously when multiplexer 2042 drives the first sense wire FS1, FS2 and the first sense wire FS3, FS4; Drive the first sense wire FS3, FS4 more simultaneously; The rest may be inferred for the first remaining sense wire); Period T1 is to be the driving signal DS1 length of the first sense wire FS1, and period T2 is to be that driving signal DS2 length, the period T3 of the first sense wire FS2 is to be that driving signal DS3 length and the period T4 of the first sense wire FS3 is to be the driving signal DS4 length of the first sense wire FS4, and wherein period T2 is greater than period T1; And period T4 is greater than period T3, that is the driving signal DS2 of the driving signal DS1 of the first sense wire FS1 and the first sense wire FS2 is partly overlapping.But the present invention is not limited to period T2 greater than period T1, and period T4 is greater than period T3, that is in another embodiment of the present invention, period T1 is greater than period T2, and period T3 is greater than period T4.As shown in Figure 3; If the P1 position of finger touches contact panel 202; When the driving signal DS1 of the first sense wire FS1 finishes; Computing unit 2046 sees through the sensing signal of M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS1 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS1 do not change (the P1 position because of contact panel 202 does not have the sensing cell corresponding to the first sense wire FS1).But when the driving signal DS2 of the first sense wire FS2 finishes; Computing unit 2046 sees through the sensing signal of the M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS2 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS2 change (there is the sensing cell corresponding to the first sense wire FS2 P1 position because of contact panel 202).Therefore touch-control system 200 is the characteristic of period T2 capable of using greater than period T1, judges that finger is the P1 position of touching contact panel 202.In like manner; If the P2 position of finger touches contact panel 202; When the driving signal DS3 of the first sense wire FS3 finishes; Computing unit 2046 sees through the sensing signal of the M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS3 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS3 change (there is the sensing cell corresponding to the first sense wire FS3 P1 position because of contact panel 202).But when the driving signal DS4 of the first sense wire FS4 finishes; Computing unit 2046 sees through the sensing signal of M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS4 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS4 do not change (the P1 position because of contact panel 202 does not have the sensing cell corresponding to the first sense wire FS4).Therefore touch-control system 200 is the characteristic of period T4 capable of using greater than period T3, judges that finger is the P2 position of touching contact panel 202.In addition, the type of drive of all the other first sense wires among the N bar first sense wire FS1-FSN is the same with type of drive among 4 first sense wire FS1, FS2, FS3, the FS4, repeats no more at this.
Please with reference to Fig. 4, Fig. 2, Fig. 3, Fig. 4 is the process flow diagram that increases the method for touch-control system newspaper point rate for the another embodiment of the present invention explanation is a kind of.The method of Fig. 4 is to utilize touch-control system 200 explanations of Fig. 2, and detailed step is following:
Step 400: beginning;
Step 402: per two first sense wires among 2042 pairs of N bars of multiplexer, the first sense wire FS1-FSN are launched the driving signal simultaneously;
Step 404: multiplexer 2042 sees through the M bar second sense wire SS1-SSM in regular turn and receives the sensing signal corresponding to per two first sense wires;
Step 406: computing unit 2046 is according to the sensing signal corresponding to per two first sense wires, and the capacitance variation, the magnitude of voltage that calculate corresponding to the sensing cell of per two first sense wires change and/or the electric field value variation;
Step 408: analog-to-digital conversion circuit 2048 bases change and/or the electric field value variation corresponding to capacitance variation, the magnitude of voltage of the sensing cell of per two first sense wires, produce the digital signal corresponding to the sensing cell of per two first sense wires;
Step 410: coordinate to the main frame 250 of at least one object of touching contact panel 202 is calculated and exported to microcontroller processor 2044 bases, rebound step 402 corresponding to the digital signal of the sensing cell of per two first sense wires.
As shown in Figure 3; In step 402; Per two first sense wires among 2042 pairs of N bars of microcontroller processor 2044 control multiplexers, the first sense wire FS1-FSN are launched the driving signal simultaneously, and (multiplexer 2042 utilizes simultaneously earlier and drives signal DS1, DS2 drives the first sense wire FS1, FS2; Utilize driving signal DS3, DS4 to drive the first sense wire FS3, FS4 more simultaneously, remaining the rest may be inferred).In step 404; Microcontroller processor 2044 control multiplexers 2042 see through the M bar second sense wire SS1-SSM in regular turn and receive the sensing signal corresponding to per two first sense wires; That is as the driving signal DS1 of the first sense wire FS1 during than the driving signal DS2 FEFO of the first sense wire FS2 (as shown in Figure 3); Microcontroller processor 2044 control multiplexer 2042 earlier sees through the sensing signal of M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS1, controls multiplexer 2042 again and receives the sensing signal corresponding to the first sense wire FS2 through the M bar second sense wire SS1-SSM.In step 406, computing unit 2046 is according to the sensing signal corresponding to per two first sense wires, and the capacitance variation, the magnitude of voltage that calculate corresponding to the sensing cell of per two first sense wires change and/or the electric field value variation; That is computing unit 2046 bases are calculated capacitance variation, magnitude of voltage variation and/or electric field value variation corresponding to the sensing cell of per two first sense wires corresponding to the raw data (raw data) of the sensing cell of per two first sense wires.In addition; As shown in Figure 3; If the P1 position of finger touches contact panel 202; When the driving signal DS1 of the first sense wire FS1 finishes; Computing unit 2046 sees through the sensing signal of M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS1 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS1 do not change (the P1 position because of contact panel 202 does not have the sensing cell corresponding to the first sense wire FS1).But when the driving signal DS2 of the first sense wire FS2 finishes; Computing unit 2046 sees through the sensing signal of the M bar second sense wire SS1-SSM reception corresponding to the first sense wire FS2 according to multiplexer 2042, learns capacitance, magnitude of voltage and/or electric field value corresponding to the sensing cell of the first sense wire FS2 change (there is the sensing cell corresponding to the first sense wire FS2 P1 position because of contact panel 202).Therefore touch-control system 200 is the characteristic of period T2 capable of using greater than period T1, judges that finger is the P1 position of touching contact panel 202.In step 410; As shown in Figure 3; When the coordinate (coordinate of the coordinate of P1 position or P2 position) of the object of microcontroller processor 2044 output touching contact panels 202 to main frame 250, main frame 250 can be carried out a corresponding action according to the coordinate of the object of touching contact panel 202.For example, in the 3rd figure, main frame 250 can be carried out a corresponding programs according to the coordinate of the P1 position of finger touches contact panel 202, or according to the coordinate of the P2 position of finger touches contact panel 202, carries out another corresponding programs.
In sum; The method of the touch-control system of increase newspaper point rate provided by the present invention and increase touch-control system newspaper point rate; Be to utilize microcontroller processor control multiplexer; In regular turn at least two first sense wires whenever in N bar first sense wire of contact panel are launched the driving signal simultaneously, and see through the sensing signal of M bar second sense wire reception of contact panel in regular turn corresponding to every at least two first sense wires.Compared to prior art, because can repaying more touch point in a schedule time, the present invention gives main frame, so the present invention can improve the newspaper point rate of touch-control system.So, when a plurality of objects were touched contact panel of the present invention, the motion track of a plurality of objects can rise because of newspaper point rate on the contact panel, and seems level and smooth.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a touch-control system that increases newspaper point rate is characterized in that, comprises:
One contact panel; In order to let at least one object touching; One first of this contact panel has N bar first sense wire and one second on axially and has M bar second sense wire on axially; Corresponding M sensing cell of each first sense wire wherein, N sensing cell of each second sense wire correspondence, and N, M are positive integer; And
One sensing circuit; In order at least two first sense wires whenever in this N bar first sense wire are launched the driving signal simultaneously; See through the sensing signal that this M bar second sense wire receives these at least two first sense wires in regular turn; And, calculate and coordinate to a main frame of at least one object of this contact panel of output touching according to the sensing signal of these at least two first sense wires;
Wherein the driving signal corresponding to these at least two first sense wires is partly overlapping.
2. the touch-control system of increase newspaper point rate according to claim 1, it is characterized in that: wherein this contact panel is to be a projecting type capacitor contact panel.
3. the touch-control system of increase newspaper point rate according to claim 2, it is characterized in that: wherein this projecting type capacitor contact panel is to be a mutual inductance type capacitance touching control panel.
4. the touch-control system of increase newspaper point rate according to claim 1, it is characterized in that: wherein this contact panel is to be an electric resistance touch-control panel.
5. the touch-control system of increase newspaper point rate according to claim 1 is characterized in that wherein this sensing circuit comprises:
One multiplexer;
One microcontroller processor is launched the driving signal in order to control this multiplexer to these at least two first sense wires simultaneously, and sees through the sensing signal that this M bar second sense wire receives these at least two first sense wires in regular turn;
One computing unit is coupled to this multiplexer, in order to according to the sensing signal corresponding to these at least two first sense wires, calculates capacitance variation, magnitude of voltage variation and/or electric field value variation corresponding to the sensing cell of these at least two first sense wires; And
One analog-to-digital conversion circuit; Be coupled to this computing unit; Change and/or the electric field value variation in order to capacitance variation, the magnitude of voltage of basis, produce digital signal corresponding to the sensing cell of these at least two first sense wires corresponding to the sensing cell of these at least two first sense wires;
Wherein this microcontroller processor is the digital signal of basis corresponding to the sensing cell of these at least two first sense wires, calculates and export the coordinate of this at least one object.
6. one kind increases the method that touch-control system is reported the some rate; It is characterized in that: one first of a contact panel of this touch-control system has N bar first sense wire and one second on axially and has M bar second sense wire on axially; Corresponding M sensing cell of each first sense wire wherein; Corresponding N the sensing cell of each second sense wire, and N, M be positive integer, this method comprises the following step:
At least two first sense wires whenever in this N bar first sense wire are launched the driving signal simultaneously;
See through this M bar second sense wire in regular turn and receive sensing signal corresponding to these at least two first sense wires; And
According to sensing signal, calculate and export the coordinate of at least one object of this contact panel of touching corresponding to these at least two first sense wires;
Wherein the driving signal corresponding to these at least two first sense wires is partly overlapping.
7. the method for increase touch-control system newspaper point rate according to claim 6 is characterized in that: wherein according to the sensing signal corresponding to these at least two first sense wires, the step of the coordinate of at least one object of calculating and this contact panel of output touching comprises in addition:
According to the sensing signal corresponding to these at least two first sense wires, the capacitance variation, the magnitude of voltage that calculate corresponding to the sensing cell of these at least two first sense wires change and/or the electric field value variation;
Change and/or electric field value changes according to capacitance variation, magnitude of voltage, produce according to digital signal corresponding to the sensing cell of these at least two first sense wires corresponding to the sensing cell of these at least two first sense wires; And
According to digital signal, calculate and export the coordinate of this at least one object corresponding to the sensing cell of these at least two first sense wires.
8. the method for increase touch-control system newspaper point rate according to claim 6, it is characterized in that: wherein this contact panel is to be a projecting type capacitor contact panel.
9. the method for increase touch-control system newspaper point rate according to claim 8, it is characterized in that: wherein this projecting type capacitor contact panel is to be a mutual inductance type capacitance touching control panel.
10. the method for increase touch-control system newspaper point rate according to claim 6, it is characterized in that: wherein this contact panel is to be an electric resistance touch-control panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100017126A CN102566845A (en) | 2012-01-05 | 2012-01-05 | Report rate increasing touch system and method for increasing report rate of touch system |
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| CN2012100017126A CN102566845A (en) | 2012-01-05 | 2012-01-05 | Report rate increasing touch system and method for increasing report rate of touch system |
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| CN109669583B (en) * | 2019-01-04 | 2021-09-10 | 京东方科技集团股份有限公司 | Touch display device and driving method of touch display panel |
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Application publication date: 20120711 |