CN108874197A - The method for sensing of touch panel and touch panel - Google Patents
The method for sensing of touch panel and touch panel Download PDFInfo
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- CN108874197A CN108874197A CN201710340772.3A CN201710340772A CN108874197A CN 108874197 A CN108874197 A CN 108874197A CN 201710340772 A CN201710340772 A CN 201710340772A CN 108874197 A CN108874197 A CN 108874197A
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- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Abstract
A kind of method for sensing of touch panel and touch panel.Wherein, which includes N control line, M group sense wire and the touch-control sensing array with the multiple sensors for being arranged as M column and N row.The N control line is coupled to N row sensor.The M group sense wire is coupled to M column sensor.The method for sensing comprises the steps of：Drive the N control line alternately to enable the N row sensor in turn and detect a touch event, wherein once have P control line and be actuated to make to have P sensor among each column sensor while be enabled, and P is the positive integer greater than 1 and less than N；And via corresponding one group of sense wire, P sensing result caused by the P sensor enabled is received, and export to generate a sensing according to the P sensing result.
Description
Technical field
The present invention relates to touch panels to sense mechanism, in particular to a kind of to enable touch-control sense simultaneously in a drive cycle
Multiple row sensors of array are surveyed to detect the touch panel and its method for sensing of touch event.
Background technique
Traditional touch panel is the touch event detected on touch panel using touch-control sensing array.However, once
When the distance between finger and touch-control sensing array increase, induction field between finger and touch-control sensing array can with subtract
It is weak, the signal-to-noise ratio (signal-to-noise, SNR) of touch-control sensing array is greatly reduced.For example, when user is with setting about
When set manipulation touch panel, user can obviously experience the decline of touch-control sensitivity.
Therefore, it is necessary to a kind of touch panels of innovation to sense mechanism, good can provide under various manipulation situations
Signal-to-noise ratio.
Summary of the invention
Touch-control sensing is enabled simultaneously among a drive cycle in view of this, one of the objects of the present invention is to provide one kind
Multiple row sensors of array are to detect the touch panel and its method for sensing of touch event, to solve the above problems.
An embodiment according to the present invention, discloses a kind of method for sensing of touch panel.The touch panel includes a touching
Control sensing array, N control line and M group sense wire.The touch-control sensing array includes the multiple sensors for being arranged as M column and N row.
The N control line is respectively coupled to N row sensor and the M group sense wire is respectively coupled to M column sensor.M and N is big
In 1 positive integer.The method for sensing comprises the steps of：Drive the N control line alternately to enable the N row sensor in turn
Detect the touch event on the touch panel, wherein once have P control line and be actuated to make among each column sensor
It has P sensor while being enabled, and P is the positive integer greater than 1 and less than N；And it is directed to each column sensor, via this
One group of sense wire that column sensor is coupled, receives while the P sensor being enabled detects P caused by the touch event
A sensing result, and exported according to the P sensing result to generate a sensing corresponding to the column sensor.
An embodiment according to the present invention, discloses a kind of touch panel.The touch panel include a touch-control sensing array,
N control line, M group sense wire, a control circuit and a sensing circuit.The touch-control sensing array includes to be arranged as M column and N row
Multiple sensors, to detect the touch event on the touch panel, wherein M and N are the positive integer greater than 1.The N item
Control line is respectively coupled to N row sensor.The M group sense wire is respectively coupled to M column sensor.The control circuit is coupled to the N
Control line detects the touch event alternately to drive the N control line to enable the N row sensor in turn, wherein should
Control circuit once can drive simultaneously P control line so as to have P sensor among each column sensor while being enabled, and
P is the positive integer greater than 1 and less than N.The sensing circuit is coupled to the M group sense wire, wherein being directed to each column sensor, the sense
Slowdown monitoring circuit is the one group of sense wire coupled via the column sensor, receives while the P sensor being enabled detects the touching
P sensing result caused by control event, and a sensing corresponding to the column sensor is generated according to the P sensing result
Output.
Touch panel provided by the present invention sensing mechanism can in driven simultaneously in single drive cycle/enable touch-control sensing
Multirow sensor among array, and then equally expand the size of touch-control sensing array and increase touch-control sensing range.Cause
This, can remain good under a variety of manipulation situations using the touch panel of touch panel provided by the present invention sensing mechanism
Signal-to-noise ratio.
Detailed description of the invention
Fig. 1 is the schematic diagram of an embodiment of touch panel of the present invention.
Fig. 2 is the flow chart of an embodiment of the method for sensing of touch panel of the present invention.
Fig. 3 is the schematic diagram of an implementation example of touch panel shown in FIG. 1.
Fig. 4 is the local circuit of column sensor shown in Fig. 3 corresponding multiplexer circuit and analog-digital converter
The schematic diagram of one embodiment of framework.
Fig. 5 shows multiplexer circuit shown in Fig. 4 and analog-digital converter operates in one first drive cycle
An embodiment schematic diagram.
Fig. 6 shows multiplexer circuit shown in Fig. 4 and analog-digital converter operates in one second drive cycle
An embodiment schematic diagram.
Description of symbols：
100,300 touch panel
110 touch-control sensing arrays
120,320 control circuit
130,330 sensing circuit
210~240 steps
332 selection circuits
332_1~332_M, MUX multiplexer circuit
334 processing circuits
334_1~334_M, ADC analog-digital converter
336_1 signal amplifier
SW0~SW3 switch
C1 capacitor
TI1、TI2Input terminal
TOUTOutput end
TE touch event
CL1~CLNControl line
S1,1~SM,NSensor
{SR1}~{ SRMOne group of sensing result
{SL1}~{ SLMOne group of sense wire
SO1~SOMSensing output
Mono- column sensor of RS1
SD driving signal
VRT、VRDReference signal
Specific embodiment
Touch panel sensing mechanism provided by the present invention can drive simultaneously in single drive cycle (drive cycle)
Multirow sensor among dynamic/enabling touch-control sensing array, and multiple sensors among each column sensor can accordingly be generated
Multiple sensing results, as sensing points single on touch-control sensing array it is corresponding one sensing output.In other words, for touch-control
For each column sensor for sensing array, it may be from multiple sensings in response to a sensing output caused by one driving/sensing operation
Multiple sensing results of device.This means that touch-control sensing battle array can be expanded on touch panel sensing mechanism provided by the present invention is equivalent
The size of column, wherein a sensing output corresponding to single sensing points may include the sensing results of multiple sensors rather than single
The sensing result of sensor.Therefore, even if the distance between touch-control object (such as finger or stylus) and touch-control sensing array
When increase, good signal-to-noise ratio can be still maintained.Using the touch panel of touch panel provided by the present invention sensing mechanism
With wide touch-control sensing range.Further instruction is as follows.
Referring to Fig. 1, its schematic diagram for an embodiment of touch panel of the present invention.Touch panel 100 may include (but not
Be limited to) a touch-control sensing array (touch sensor array) 110, N control line CL1~CLN, M group sense wire { SL1 }~
{ SLM }, a control circuit 120 and a sensing circuit 130, wherein M and N is the positive integer greater than 1.In this embodiment,
Touch-control sensing array 110 may include the multiple sensor S1,1~SM for being arranged as M column and N row, N (such as multiple capacitance touching controls
Sensor), and can be used to detect the touch event TE on touch panel 100.N control line CL1~CLN is respectively coupled to touching
N row sensor (N columns of sensors) among control sensing array 110, wherein being located at the M sensor with a line
It is coupled to same control line.Also that is, multiple sensor S1,1, S2,1 ..., SM, 1 is coupled to control line CL1, multiple senses
Survey device S1,2, S2,2 ..., SM, 2 are coupled to control line CL2, and so on.In addition, M group sense wire { SL1 }~{ SLM } points
The M column sensor (M rows of sensors) not being coupled among touch-control sensing array 110, wherein being located at the N number of of same row
Sensor is coupled to same group of sense wire.Also that is, multiple sensor S1,1, S1,2 ..., S1, N is coupled to one group of sense wire
{ SL1 }, multiple sensor S2,1, S2,2 ..., S2, N is coupled to one group of sense wire { SL2 }, and so on.
Control circuit 120 is coupled to N control line CL1~CLN, and can be made by N control line CL1~CLN of driving
Energy/enabling (enable/activate) the N row sensor detects touch event TE.In this embodiment, control circuit 120 can
N control line CL1~CLN is alternately driven, enable/to enable N row sensor detection touch event TE in turn, wherein each
Sensor can detect touch event TE when enabled/enabling and generate a sensing result accordingly, and control circuit 120 once can be same
When driving P control line (P is to be less than the positive integer of N greater than 1) so as to have P sensor simultaneously among each column sensor
It is enabled.
It can be via each column sensor institute next, being coupled to M group sense wire { SL1 }~{ SLM } sensing circuit 130
One group of sense wire of coupling, receives among the column sensor while the P sensor being enabled is produced in response to touch event TE
Raw P sensing result (also that is, sensing result caused by detection touch event TE), and according to the P sensing result come
Generate a sensing output corresponding to the column sensor.For example, sensing circuit 130 P sensing result can be added (or
Other calculation process, such as ranking operation are carried out to the P sensing result), and sensing output is generated accordingly.
In this embodiment, sensing circuit 130 can receive corresponding P sensing result via this group of sense wire { SL1 }
(being indicated with one group of sensing result { SR1 }), and a sensing output SO1 is generated accordingly；Sensing circuit 130 can be sensed via the group
Line { SL2 } receives corresponding P sensing result (indicating with one group of sensing result { SR2 }), and accordingly generate one sense it is defeated
SO2 out；And so on.After generating M sensing output SO1~SOM, sensing circuit 130 can be exported according to M sensing
SO1~SOM identifies touch event TE the touch position of touch-control object (such as determine).
In some embodiments, the P control line that control circuit 120 drives simultaneously can be adjacent to each other.For example
(however, the present invention is not limited thereto), control circuit 120 can drive in turn N control line CL1~CLN according to driving sequence,
In in an at least drive cycle among the driving sequence, control circuit 120 can once drive adjacent to each other two simultaneously
Control line (P=2), and then two row sensors adjacent to each other are enabled simultaneously.It can be pressed according to driving sequence in control circuit 120
Sequence drive multiple control line CL1 and CL2, multiple control lines CL2 and CL3 ..., multiple control line CLN-1 and CLN and
In an implementation example of multiple control lines CLN and CL1, for comprising multiple sensor S1,1, S1,2 ..., S1, a column of N
For sensor, multiple sensor S1,1 and S1,2 can be activated/enable in one first drive cycle, multiple sensor S1, and 2
It can be activated/enable in one second drive cycle adjacent to first drive cycle with S1,3, and so on.
In addition, sensing circuit 130 can receive multiple sensor S1 when multiple sensor S1,1 and S1,2 are activated, 1 with
Sensing result caused by S1,2 detection touch event TE (also that is, this group of sensing result { SR1 } includes multiple sensor S1,1 with
S1, sensing result caused by 2), and sensing output SO1 is generated accordingly；When multiple sensor S1,2 and S1,3 are activated, sense
Slowdown monitoring circuit 130 can receive multiple sensor S1,2 and S1,3 and detect sensing result caused by touch event TE (also that is, the group sense
Surveying result { SR1 } includes multiple sensor S1,2 and S1, sensing result caused by 3), and sensing output SO1 is generated accordingly.Letter
Yan Zhi, the driving in response to each drive cycle operate, and sensing circuit 130 can receive the multiple sensings enabled in the column sensor
The sensing result that device generates as this group of sensing result { SR1 }, and according to this group of sensing result { SR1 } to generate sensing to export
SO1.Since sensing circuit 130 can generate inductive output SO1 in response to the driving of each drive cycle operation, it senses defeated
Out SO1 can be considered the detection in response to touch event TE and the single sensing points that enable corresponding to a sensing output.
Similarly, multiple sensings export the single sense that SO2~SOM can be considered the detection in response to touch event TE and enable
A sensing output corresponding to measuring point.Significantly, since sensing circuit 130 can be according to multiple sensors (such as each other
Adjacent/neighbouring multiple sensors) sensing result come generate a sensing output using as single sensing points sensing output, therefore
Sensing signal intensity corresponding to single sensing points can be increased, and then promote the signal-to-noise ratio of touch panel 100.
It is described above only to be needed for explanation, not it is used as limitation of the invention.In a design variation, control circuit
120 can only drive a line circle control line (control line CL1/CLN) in a drive cycle.For example, in control circuit 120
N control line CL1~CLN is driven in turn according to driving sequence, and one in an at least drive cycle for the driving sequence
In the case of secondary while two control lines of driving, the control line respectively driven in multiple drive cycles among the driving sequence can
Be respectively " CL1 and CL2, CL2 and CL3 ..., CLN-1 and CLN, CLN " or " CL1, CL1 and CL2, CL2 and CL3 ..., CLN-
1 and CLN ", wherein control circuit 120 can only drive a line circle control line (control line CL1/CLN) in a drive cycle.
In another design variation, the control line that control circuit 120 drives simultaneously is not necessarily intended to adjacent to each other.In another
In design variation, control circuit 120 can alternately drive the control of N item by way of primary while being driven past two control lines
Line CL1~CLN processed.As long as in short, use primary while driving a plurality of control line to enable multirow sensor in turn, in turn
The touch panel of sensing output is generated according to sensing result caused by the multiple sensors enabled in each column sensor
Sensing mechanism, relevant variation follows design of the invention and falls into the scope of the present invention in design.
Fig. 2 is the flow chart of an embodiment of the method for sensing of touch panel of the present invention, and wherein the method for sensing can be applied
In touch panel 100 shown in FIG. 1.For convenience of explanation, method for sensing shown in Fig. 2 is collocation touch panel shown in FIG. 1
100 illustrate.However, this is not used as limitation of the invention.Method for sensing shown in Fig. 2 can be simply summarized as follows.
Step 210：Start.
Step 220：Drive N control line CL1~CLN alternately to enable N row sensor detection touch panel in turn
Touch event TE on 100, wherein primary P control line having among N control line CL1~CLN is actuated to make each
P sensor is had among column sensor while being enabled, and P is the positive integer greater than 1 and less than N.
Step 230：For each column sensor, the one group of sense wire coupled via the column sensor receives quilt simultaneously
P sensing result caused by the enabled P sensor detection touch event TE.For example, sensing circuit 130 can be via
This group of sense wire { SL1 } receive comprising multiple sensor S1,1, S1,2 ..., S1, be enabled in a column sensor of N simultaneously
Multiple sensing results that multiple sensors generate respectively.
Step 240：A sensing output corresponding to the column sensor is generated according to the P sensing result.
It is worth noting that, the P control line respectively driven in two adjacent drive cycles can in step 220
Some is identical.For example (however, the present invention is not limited thereto), control circuit 120 can replace according to driving sequence
Ground drives N control line CL1~CLN, wherein control circuit 120 can in one first drive cycle among the driving sequence
One first control line and the second control line of (P-1) item among N control line CL1~CLN are driven simultaneously, and suitable in the driving
Adjacent in one second drive cycle of first drive cycle among sequence, control circuit 120 can drive the N control line simultaneously
Among should the second control line of (P-1) item and a third control line, wherein the third control line is different from first control line.
In an implementation example, which can be adjacent to second control line of (P-1) item, and is somebody's turn to do (P-1) item
Second control line can be adjacent to the third control line.For example, N control line CL1 is once driven simultaneously in control circuit 120
In the case of two control lines (P=2) among~CLN, which can be control line CL1, is somebody's turn to do (P-1) item second
Control line can be control line CL2 and the third control line can be control line CL3.In another implementation example, this first
Control line or the third control line can be non-conterminous in second control line of (P-1) item.For example, primary in control circuit 120
In the case of driving two control lines (P=2) among N control line CL1~CLN simultaneously, which can be control
Line CLN-1 processed, should second control line of (P-1) item can be control line CLN and the third control line can be control line CL1.
After being illustrated due to skilled persons via the relevant paragraph for reading Fig. 1, it should be appreciated that method for sensing shown in Fig. 2
Details of operation, therefore further instruction just repeats no more herein.
Technical characteristic to facilitate the understanding of the present invention uses an implementation example of touch panel 100 shown in FIG. 1 below
To further illustrate the details of touch panel sensing mechanism of the present invention.It is worth noting that, touch panel of the present invention is sensed machine
It is also feasible that system, which is applied to other circuit implementations based on touch panel 100 shown in FIG. 1,.Referring to Fig. 3, it is Fig. 1 institute
The schematic diagram of one implementation example of the touch panel 100 shown.In this implementation example, touch panel 300 may include control electricity
Road 320, a processing circuit 330 and touch-control sensing array 110 shown in FIG. 1, N control line CL1~CLN and M group sense wire
{ SL1 }~{ SLM }, wherein control circuit shown in FIG. 1 120 and processing circuit 130 can be respectively by control circuit 320 and processing electricity
Road 330 is implemented.In addition, each group of sense wire may include N sense wire, which is respectively coupled to corresponding one
N number of sensor in column sensor.Specifically, this group of sense wire { SL1 } may include N sense wire SL1,1~SL1, N,
It is to be respectively coupled to N number of sensor S1,1~S1, N；This group of sense wire { SL2 } may include N sense wire SL2,1~SL2, N,
It is to be respectively coupled to N number of sensor S2,1~S2, N；And so on.
Control circuit 320 can produce a driving signal SD (such as modulated signal (modulated with triangular waveform
Triangular wave signal) or modulated signal (modulated square wave with square-wave waveform
Signal)) to the P control line (P is the positive integer greater than 1 and less than N) that P row sensor couples, to enable each column simultaneously
P sensor among sensor.Sensing circuit 330 may include (but a being not limited to) selection circuit 332 and a processing circuit
334, wherein selection circuit 332 is coupled between processing circuit 334 and M group sense wire { SL1 }~{ SLM }.Feel for each column
Device is surveyed, when control circuit 320 enables P sensor among the column sensor simultaneously to detect touch event TE, selection electricity
The P sense wire that the enabled P sensor is coupled can be coupled to processing circuit 334 by road 332, should by enabled
P sensing result caused by P sensor is transmitted to processing circuit 334, and by (N-P) that is not enabled on a sensor institute coupling
(N-P) sense wire and 334 processing circuits connect separate (uncouple).In this way, which processing circuit 334 can receive the P
A sensing result is to generate corresponding sensing output.
For example (however, the present invention is not limited thereto), selection circuit 332 may include M multiplexer circuit (multiplexer
Circuit) 332_1~332_M (being respectively labeled as " MUX ") is to be respectively coupled to M group sense wire { SL1 }~{ SLM }.Place
Reason circuit 334 may include M analog-digital converter (analog-to-digital converter) (or integrating circuit
(Integrating circuit)) 334_1~334_M, wherein each analog-digital converter is labeled as " ADC ".With comprising
For a column sensor RS1 of N number of sensor S1,1~S1, M, multiplexer circuit 332_1 can will be produced by column sensor RS1
This group of sensing result { SR1 } be coupled to analog-digital converter 334_1, and analog-digital converter 334_1 can be defeated accordingly
Sensing output SO1 out.
In some embodiments, what selection circuit 330 can separately be coupled (N-P) a sensor being not enabled on should (N-
P) sense wire is coupled to a reference signal (being not shown in Fig. 3), and wherein the reference signal can have phase with driving signal SD
Same waveform.Please come together with Fig. 3 refering to Fig. 4.Fig. 4 is the corresponding multiplexer circuit 332_ of column sensor RS1 shown in Fig. 3
The schematic diagram of one embodiment of the local circuit framework of 1 and analog-digital converter 334_1.Succinct for purposes of explanation, Fig. 4 is only shown
The corresponding partial circuit element of multiple sensor S1,1~S1,3 among column sensor RS1.It is noticeable
It is that in some embodiments, electricity shown in Fig. 4 is can also be used in part or all of multiple multiplexer circuit 332_2~332_M
Circuit shown in Fig. 4 can also be used in part or all of road framework and/or multiple analog-digital converter 334_2~334_M
Framework.
In embodiment shown in Fig. 4, multiplexer circuit 332_1 may include (but being not limited to) multiple switch SW0~SW3,
And analog-digital converter 334_1 may include (but an a being not limited to) signal amplifier 336_1 and capacitor C1, wherein signal amplifies
Device 336_1 can have an input terminal TI1, an input terminal TI2 and an output end TOUT.Switch SW0 optionally will input
End TI1 is coupled to one of a reference signal VRT and a reference signal VRD, and wherein reference signal VRT can have and drive
Identical/similar waveform of signal SD, and reference signal VRD can by a reference voltage (such as certain voltage or a ground voltage) Lai
Implement.Sensor S1,1 is optionally coupled to input terminal TI2, reference signal VRT and reference signal VRD's by switch SW1
One of them.Sensor S1,2 is optionally coupled to input terminal TI2, reference signal VRT and reference signal by switch SW2
One of VRD.Sensor S1,3 is optionally coupled to input terminal TI2, reference signal VRT and reference by switch SW3
One of signal VRD.In addition, capacitor C1 can be coupled between input terminal TI2 and output end TOUT.
For each sensor, when the sensor is activated/enables, corresponding switch can be coupled to the sensing
Between device and input terminal TI2；When the sensor is not activated/enables, corresponding switch can be coupled to the sensor and ginseng
It examines between signal VRT.In the case of the sensor is not enabled, since (it can be used for reference signal VRT and driving signal SD
Drive the control line for having enabled sensor and having been coupled adjacent to the sensor) there can be similar/identical waveform, it therefore, will
Reference signal VRT, which is coupled to the sensor not being enabled, can reduce the sensor and the signal interference between sensor.
The details of operation of multiple switch SW0~SW3 shown in Fig. 4 in order to facilitate understanding is with control shown in Fig. 3 below
Circuit 320 drives the implementation example of N control line CL1~CLN according to driving sequence to illustrate in turn, the wherein driving
The control line respectively driven in multiple drive cycles in sequence can be respectively " CL1 and CL2, CL2 and CL3 ..., CLN-1 with
CLN, CLN-1 and CLN ".However, this is used only to facilitate explanation, it is not used as limitation of the invention.Please together with figure
3 come refering to Fig. 5 and Fig. 6.Fig. 5 shows multiplexer circuit 332_1 shown in Fig. 4 and analog-digital converter 334_1 and operates in
The schematic diagram of an embodiment among one first drive cycle, and Fig. 6 shows multiplexer circuit 332_1 and mould shown in Fig. 4
Quasi- digital quantizer 334_1 operates in the schematic diagram of the embodiment among one second drive cycle, wherein the second driving week
Phase is adjacent (such as continuation) first drive cycle.
Firstly, control circuit 320 can produce driving signal SD to multiple control line CL1 in first drive cycle
Touch event TE is detected with CL2 to enable multiple sensor S1,1 and S1,2.Input terminal TI1 can be coupled to reference by switch SW0
Signal VRD, so that analog-digital converter 334_1 can carry out signal conversion operation (or signal integration operation).Switch SW1 can be incited somebody to action
Sensor S1,1 is coupled to input terminal TI2, and by sensor S1,1 sensing result SR1,1 is sent to analog-digital converter
334_1.Similarly, switch SW2 can be coupled to input terminal TI2 by sensor S1,2, by sensor S1,2 sensing result
SR1,2 is sent to analog-digital converter 334_1.In order to reduce noise jamming, switch SW3 can be coupled to ginseng by sensor S1,3
Examine signal VRT.Analog-digital converter 334_1 can collect sensing result SR1,1 and sensing result SR1,2, and generate accordingly
Sensing output SO1.
In second drive cycle, control circuit 320 can produce driving signal SD to multiple control lines CL2 and CL3
Touch event TE is detected to enable multiple sensor S1,2 and S1,3.Sensor S1,2 can be coupled to input terminal by switch SW2
TI2, by sensor S1,2 sensing result SR1,2 are sent to analog-digital converter 334_1.Switch SW3 can be by sensor
S1,3 are coupled to input terminal TI2, and by sensor S1,3 sensing result SR1,3 are sent to analog-digital converter 334_1.Phase
As, switch SW1 can be coupled to reference signal VRT by sensor S1,1 to reduce noise jamming.Analog-digital converter 334_1
Sensing result SR1,2 and sensing result SR1,3 can be collected, and generates sensing output SO1 accordingly.
Based on aforesaid operations, control circuit 320 equally drives 2N control line among the driving sequence.Therefore,
Touch-control sensing array 110 can be considered as on equivalent with the touch-control sensing array for being arranged as M column and multiple sensors of 2N row,
In in response to a sensing output caused by each drive cycle may be from the sensing results of two sensors.It follows that controlling
Circuit 320 is primary to drive P control line simultaneously enabled under the N row sensor situation in turn, on touch-control sensing array 110 is equivalent
The extendible touch-control sensing array to be arranged as M column with multiple sensors of (P × N) row, wherein being produced in response to each drive cycle
A raw sensing output may be from the sensing result of P sensor.Therefore, the signal-to-noise ratio of touch panel 300 can be substantially improved.
It note that the above is only to need for explanation, be not used as limitation of the invention.In a design variation
In, at least one of multiple multiplexer circuit 332_1~332_M shown in Fig. 3 can by be different from circuit framework shown in Fig. 4 Lai
Implement.In another design variation, at least one of multiple analog-digital converter 334_1~334_M shown in Fig. 3 can be by not
Circuit framework shown in Fig. 4 is same as to implement.Sense wire in another design variation, in each group sense wire shown in Fig. 3
Quantity is not limited to N item.For example, at least one of multiple groups of sense wires { SL1 }~{ SLM } shown in FIG. 1 can be by single
Sense wire is implemented.
In conclusion touch panel provided by the present invention sensing mechanism can be in driving/open simultaneously in single drive cycle
With the multirow sensor in touch-control sensing array, and then equally expands the size of touch-control sensing array and increase touch-control sense
Survey range.Therefore, using the touch panel of touch panel provided by the present invention sensing mechanism under a variety of manipulation situations
Maintain good signal-to-noise ratio
The above description is only a preferred embodiment of the present invention, all equivalent changes done according to the claims in the present invention with repair
Decorations, are all covered by the present invention.
Claims (12)
1. a kind of method for sensing of touch panel, which includes a touch-control sensing array, N control line and M group sensing
Line, the touch-control sensing array include the multiple sensors for being arranged as M column and N row, which is respectively coupled to N row sensing
Device, the M group sense wire are respectively coupled to M column sensor, and M and N are the positive integer greater than 1；The method for sensing includes following step
Suddenly：
Drive the N control line alternately to enable the N row sensor in turn and detect a touch event on the touch panel,
In, it once has P control line and is actuated to make to have P sensor among each column sensor while be enabled, and P is big
In the positive integer that 1 is less than N；And
For each column sensor：
The one group of sense wire coupled via the column sensor, receives while the P sensor being enabled detects the touch-control thing
P sensing result caused by part；And
A sensing output corresponding to the column sensor is generated according to the P sensing result.
2. method for sensing as described in claim 1, wherein the P control line is adjacent to each other.
3. method for sensing as described in claim 1, wherein the step of alternately driving the N control line comprises the steps of：
In one first drive cycle, while one first control line and (P-1) item second among the N control line being driven to control
Line；And
In one second drive cycle of adjacent first drive cycle, while driving in the N control line and being somebody's turn to do (P-1) item
Second control line and a third control line, wherein the third control line is different from first control line.
4. method for sensing as described in claim 1, wherein each group of sense wire includes N sense wire, the N sense wire difference
The N number of sensor being coupled in corresponding column sensor；And this group of sense wire coupled via the column sensor
It includes following for receiving the step of P sensor that is enabled simultaneously detects the touch event generated P sensing result
Step：
The P sense wire that the enabled P sensor is coupled is coupled to a processing circuit, to connect using the processing circuit
Receive the P sensing result；And
(N-P) sense wire and the processing circuit that (N-P) a sensor being not enabled on is coupled are separated.
5. method for sensing as claimed in claim 4, wherein the step of alternately driving the N control line comprises the steps of：
For each column sensor：
Generate the P control line that a driving signal is coupled to the P sensor enabled；And
(N-P) sense wire that is somebody's turn to do that (N-P) a sensor is coupled that is somebody's turn to do being not enabled on is coupled to a reference signal, wherein the ginseng
Examine signal and driving signal waveform having the same.
6. method for sensing as described in claim 1, wherein being generated according to the P sensing result corresponding to the column sensor
The step of sensing exports comprises the steps of：
The P sensing result is added, and generates sensing output accordingly.
7. a kind of touch panel, includes：
One touch-control sensing array, multiple sensors comprising being arranged as M column and N row, to detect the touching on the touch panel
Control event, wherein M and N is the positive integer greater than 1；
N control line is respectively coupled to N row sensor；
M group sense wire is respectively coupled to M column sensor；
One control circuit is coupled to the N control line, alternately to drive the N control line, to enable the N row sense in turn
It surveys device and detects the touch event, wherein the control circuit once can drive simultaneously P control line so that among each column sensor
It has P sensor while being enabled, and P is the positive integer greater than 1 and less than N；And
One sensing circuit is coupled to the M group sense wire, wherein being directed to each column sensor, which is via the column sense
One group of sense wire that device is coupled is surveyed, receives while the P sensor being enabled detects P sense caused by the touch event
It surveys as a result, and being exported according to the P sensing result to generate a sensing corresponding to the column sensor.
8. touch panel as claimed in claim 7, wherein the P control line is adjacent to each other.
9. touch panel as claimed in claim 7, wherein the control circuit can drive this simultaneously in one first drive cycle
One first control line and the second control line of (P-1) item among N control line；One second in adjacent first drive cycle drives
In the dynamic period, which can drive simultaneously and be somebody's turn to do the second control line of (P-1) item and third control among the N control line
Line；The third control line is different from first control line.
10. touch panel as claimed in claim 7, wherein each group of sense wire includes N sense wire, the N sense wire point
The N number of sensor not being coupled among corresponding column sensor；And the sensing circuit includes：
One processing circuit generates sensing output to receive the P sensing result；
One selection circuit is coupled between the M group sense wire and the processing circuit, and wherein the selection circuit is to be somebody's turn to do enabled
The P sense wire that P sensor is coupled is coupled to the processing circuit, which is transmitted to the processing circuit,
And (N-P) sense wire and processing circuit that (N-P) a sensor being not enabled on is coupled are separated.
11. touch panel as claimed in claim 10, wherein the control circuit is to generate a driving signal to the P enabled
The P control line and the selection circuit that a sensor is coupled be will be not enabled on should (N-P) a sensor coupled should
(N-P) sense wire is coupled to a reference signal；The reference signal and driving signal waveform having the same.
12. touch panel as claimed in claim 7, wherein the sensing circuit is to be added the P sensing result, and produce accordingly
Raw sensing output.
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| CN201710340772.3A CN108874197A (en) | 2017-05-16 | 2017-05-16 | The method for sensing of touch panel and touch panel |
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| CN201710340772.3A CN108874197A (en) | 2017-05-16 | 2017-05-16 | The method for sensing of touch panel and touch panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600975A (en) * | 2020-02-21 | 2020-08-28 | 蒋兴德 | Mobile phone touch screen sensitivity dynamic adjustment platform |
| CN111880639A (en) * | 2020-02-21 | 2020-11-03 | 蒋兴德 | Method for dynamically adjusting sensitivity of mobile phone touch screen |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080158167A1 (en) * | 2007-01-03 | 2008-07-03 | Apple Computer, Inc. | Simultaneous sensing arrangement |
| US20110048813A1 (en) * | 2009-09-03 | 2011-03-03 | Esat Yilmaz | Two-dimensional position sensor |
| CN102566845A (en) * | 2012-01-05 | 2012-07-11 | 福建华映显示科技有限公司 | Report rate increasing touch system and method for increasing report rate of touch system |
| CN103034352A (en) * | 2011-09-28 | 2013-04-10 | 晨星软件研发(深圳)有限公司 | Touch control sensing device and electronic system provided with touch control sensing device |
| CN103257740A (en) * | 2012-02-16 | 2013-08-21 | 三星显示有限公司 | Method of operating touch panel, touch panel and display device |
| CN103268162A (en) * | 2012-11-27 | 2013-08-28 | 上海天马微电子有限公司 | Scanning device and scanning method of touch signal |
| TW201346687A (en) * | 2012-01-25 | 2013-11-16 | Smk Kk | Capacitive type touch input device |
| CN104657008A (en) * | 2013-11-15 | 2015-05-27 | 奕力科技股份有限公司 | Touch sensing device and operation method thereof |
| CN104850285A (en) * | 2014-02-17 | 2015-08-19 | 义隆电子股份有限公司 | cluster type scanning method of capacitive touch device |
| CN106415600A (en) * | 2016-08-09 | 2017-02-15 | 深圳信炜科技有限公司 | Bioinformation sensing device and electronic equipment |
-
2017
- 2017-05-16 CN CN201710340772.3A patent/CN108874197A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080158167A1 (en) * | 2007-01-03 | 2008-07-03 | Apple Computer, Inc. | Simultaneous sensing arrangement |
| US20110048813A1 (en) * | 2009-09-03 | 2011-03-03 | Esat Yilmaz | Two-dimensional position sensor |
| CN103034352A (en) * | 2011-09-28 | 2013-04-10 | 晨星软件研发(深圳)有限公司 | Touch control sensing device and electronic system provided with touch control sensing device |
| CN102566845A (en) * | 2012-01-05 | 2012-07-11 | 福建华映显示科技有限公司 | Report rate increasing touch system and method for increasing report rate of touch system |
| TW201346687A (en) * | 2012-01-25 | 2013-11-16 | Smk Kk | Capacitive type touch input device |
| CN103257740A (en) * | 2012-02-16 | 2013-08-21 | 三星显示有限公司 | Method of operating touch panel, touch panel and display device |
| CN103268162A (en) * | 2012-11-27 | 2013-08-28 | 上海天马微电子有限公司 | Scanning device and scanning method of touch signal |
| CN104657008A (en) * | 2013-11-15 | 2015-05-27 | 奕力科技股份有限公司 | Touch sensing device and operation method thereof |
| CN104850285A (en) * | 2014-02-17 | 2015-08-19 | 义隆电子股份有限公司 | cluster type scanning method of capacitive touch device |
| CN106415600A (en) * | 2016-08-09 | 2017-02-15 | 深圳信炜科技有限公司 | Bioinformation sensing device and electronic equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600975A (en) * | 2020-02-21 | 2020-08-28 | 蒋兴德 | Mobile phone touch screen sensitivity dynamic adjustment platform |
| CN111880639A (en) * | 2020-02-21 | 2020-11-03 | 蒋兴德 | Method for dynamically adjusting sensitivity of mobile phone touch screen |
| CN111880639B (en) * | 2020-02-21 | 2021-03-26 | 玉环墨痕机电科技有限公司 | Method for dynamically adjusting sensitivity of mobile phone touch screen |
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