CN104063096B - Capacitive touch control device - Google Patents
Capacitive touch control device Download PDFInfo
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- CN104063096B CN104063096B CN201310085351.2A CN201310085351A CN104063096B CN 104063096 B CN104063096 B CN 104063096B CN 201310085351 A CN201310085351 A CN 201310085351A CN 104063096 B CN104063096 B CN 104063096B
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Abstract
A capacitive touch control device comprises a control processing circuit and a touch control panel, wherein a plurality of detection units are arranged on the touch control panel in a matrix manner; the control processing circuit is used for inputting a drive signal to the detection units of the touch control panel and sequentially reading measuring data from the detection units for postprocessing; and the control processing circuit reads the measuring data of the detection units according to the first sampling number in the normal mode and reads the measuring data of the detection units according to the second sampling number in the sleep mode, and the second sampling number is smaller than the first sampling number.
Description
Technical field
The present invention is a kind of relevant input unit, particularly about a kind of condenser type for reducing power consumption and lifting reporting rate
Contactor control device.
Background technology
Contact panel because it is simple to operate and in operation when be not required to arrange in pairs or groups such as slide-mouse or keyboard single-candidate neighboring device, therefore
It is commonly applied on portable electronic devices and household appliances.In capacitance type touch-control panel, touching operated by user
Control region generally only occupies the area of contact panel, therefore considering in energy saving, except can be in park mode
Decline low power consuming, preferably can also be consumed energy in entirety is saved under normal mode.
In known technology, under park mode, power consumption can be reduced by reducing scan frequency.For example, Taiwan Patent
Disclosed in No. 200943156 it is a kind of under normal mode so that 4 milliseconds of frequency is scanned under park mode with 40 milliseconds
The electricity saving method that is scanned of frequency, it is according to judging for a long time whether touch event (touch event) occurs to confirm
Whether park mode is switched to from normal mode.But in the hibernation mode, reducing scan frequency then can simultaneously reduce reporting rate
(report rate) and may postpone for the first time touching occur detection time, while the reaction time of contact panel can be reduced.
In view of this, the present invention also proposes a kind of capacitive touch device, and it is under park mode and under normal mode
The overall power consumption of contact panel can be reduced, and the detection instantaneity that touching occurs for the first time will not be reduced.
The content of the invention
The present invention provides a kind of capacitive touch device, and it can be in the subregion that contact panel is only scanned under park mode
And/or the number of samples of the measurement data of reduction contact panel, overall power consumption is reduced whereby.
The present invention provides a kind of capacitive touch device, and it can be in the subregion that contact panel is only scanned under normal mode
And/or the number of samples of the measurement data of the subregion of reduction touch-control, overall power consumption is reduced whereby.
The present invention provides a kind of capacitive touch device, and the number of samples of its measurement data that can reduce contact panel is borrowed
This increases reporting rate and detection instantaneity.
The present invention provides a kind of capacitive touch device, comprising contact panel and control process circuit.The touch surface
Multiple detection units of the plate comprising matrix arrangement.The control process circuit is to input drive signal to the contact panel
The detection unit and successively from the detection unit read measurement data；Wherein, the control process circuit under normal mode
The control process circuit is read under the measurement data and park mode of the detection unit with the first number of samples with the
Two number of samples read the measurement data of the detection unit.Second number of samples is less than first hits
Mesh.
The present invention capacitive touch device is also provided, comprising contact panel with control process circuit.The contact panel
Multiple detection units comprising matrix arrangement.Control process circuit is used to the inspection of input drive signal to the contact panel
Survey unit and be successively read measurement data from the detection unit；Wherein, under normal mode the control process circuit in first
The control process electricity under the measurement data and park mode of the detection unit is read during frame with the first number of samples
The measurement data of the detection unit is read with the second number of samples during the second frame in road.Second number of samples is low
During first frame being shorter than during first number of samples and second frame.
The present invention also provides a kind of capacitive touch device, comprising contact panel and control process circuit.The touch-control
Multiple detection units of the panel comprising matrix arrangement.Control process circuit is used to the institute of input drive signal to the contact panel
State detection unit and successively from detection unit reading measurement data；Wherein, the control process circuit is only under park mode
Read the measurement data of the part detection unit.
In one embodiment, the control process circuit reads multiple pens of each detection unit with identical sample frequency
Measurement data.For example, reading the sample frequency all same of first number of samples and second number of samples.
In one embodiment, under the normal mode, the control process circuit may be selected with number of samples higher (for example
First number of samples) read the measurement data of all or part of detection unit；Wherein, when the control process circuit is with institute
When stating the first number of samples and only reading the measurement data of the part detection unit, the control process circuit is with relatively low sampling
Number (such as described second number of samples) reads the measurement data of detection unit described in other parts, is consumed with further saving
Energy.
In one embodiment, can be included or not comprising idle during the frame of contact panel described in the control process circuit sweeps
Time.Power consumption can be saved when standby time is included during the frame；Can be further not comprising standby time during the frame
Lifting scans frequency and reporting rate.
In one embodiment, when the control process circuit is in normal mode and park mode only reading part point detection unit
During measurement data, the control process circuit preferably reads the measurement data of the detection unit of different piece during consecutive frame,
All detection units can be detected with during at least two frames at least one times.
In the capacitive touch device of the embodiment of the present invention, part can be read with relatively low number of samples in the hibernation mode
Or the measurement data of whole detection units, reduce consume energy and lifted detection instantaneity whereby；In can be in touch points under normal mode
Peripheral region is with the measurement data of whole detection units in the normal sample number reading peripheral region and in the peripheral region
The measurement data of part or all of detection unit is read in region beyond domain with relatively low number of samples, reduces whereby and consumes energy and carry
Rise detection instantaneity.
In order to above and other objects, features and advantages of the invention can be become apparent from, will hereafter coordinate appended diagram, in detail
Carefully it is described as follows.Additionally, in explanation of the invention, identical component is represented with identical symbol, is first stated clearly in this.
Brief description of the drawings
The block schematic diagram of the capacitive touch device of Fig. 1 display embodiment of the present invention；
The schematic diagram of the capacitive touch device of Fig. 2 display embodiment of the present invention；
The capacitive touch device of Fig. 3 A display embodiment of the present invention is in the survey of reading part under park mode point detection unit
Measure the schematic diagram of data；
The capacitive touch device of Fig. 3 B display embodiment of the present invention is in the survey of reading part under park mode point detection unit
Measure another schematic diagram of data；
The capacitive touch device of Fig. 4 display embodiment of the present invention is in the measurement of reading part under normal mode point detection unit
The schematic diagram of data；
The running schematic diagram of the capacitive touch device of Fig. 5 display first embodiment of the invention；
The running schematic diagram of the capacitive touch device of Fig. 6 display second embodiment of the invention；
The capacitive touch device of Fig. 7 display embodiment of the present invention reads the schematic diagram of the measurement data of detection unit.
Description of reference numerals
1 capacitive touch device
11 contact panels
111 detection units
1111-111nDetection unit
The Part I of 111a detection units
The Part II of 111b detection units
The Part III of 111c detection units
13 control process circuits
Tc touch points
SN1First number of samples
SN2Second number of samples
Sd drive signals
Sm measurement data.
Specific embodiment
It is shown referring to Figures 1 and 2, Fig. 1 display the embodiment of the present invention capacitive touch device block schematic diagram and Fig. 2
Show the schematic diagram of the capacitive touch device of the embodiment of the present invention.Capacitive touch device of the invention 1 includes contact panel
11 and control process circuit 13.In the present embodiment, the contact panel 11 is, for example, capacitance type touch-control panel, and comprising matrix row
Multiple detection units 111 of row are (such as comprising 1111-111n), as shown in Fig. 2 carrying out touch-control behaviour thereon with for user
Make.The control process circuit 13 couples the contact panel 11, to output drive signal Sd to the contact panel 11
The detection unit 111 simultaneously from the detection unit 111 reads measurement data Sm successively, and according to the measurement data Sm for being read
Judge at least one touch points and export corresponding control signal to user's GUI (GUI)；Wherein, at the control
Reason circuit 13 has been, it is known that the driving for example can be input into by multiple switch element with the connected mode of the contact panel 11
Signal Sd is simultaneously successively read the measurement data Sm, therefore will not be repeated here.The drive signal Sd for example can be continuous voltage
Signal, for example, can be string ripple, square wave or other voltage signals with symmetrically or non-symmetrically waveform；The control process circuit 13
The measurement data of default number of samples (sampling number) is read when each detection unit 111 is read to calculate
Touch information, for example, read 128,64 of each detection unit 111 or 32 pen datas to judge touch-control with sample frequency
Event with the touch information such as position of touch.It will be appreciated that the control process circuit 13 calculates the touch information institute
The number of samples for needing can be determined according to required accuracy, however it is not limited to the number of samples disclosed in present invention explanation.It is described
Touch information is to perform specific city to relation control electronic installation, because it has been known therefore be will not be repeated here.
In the present invention, the capacitive touch device 1 can operate on normal mode and park mode (being illustrated in down)；
Wherein, the normal mode can be comprising two kinds of implementation aspects.The control process circuit 13 is in preferable input phase under different mode
With drive signal to each detection unit 111.The normal mode refers to that the control process circuit 13 is judged at least
One indicant, such as finger are just operating in the operating mode on the contact panel 11；The park mode refers to the control
Process circuit processed 13 judges the operating mode without the operation of any indicant on the contact panel 11 in Preset Time.
A part of park mode is for the another of the normal mode implements aspect；For example, when control process electricity
Road 13 judges that at least one indicant is just being operated in when on the contact panel 11, by the detection unit of contact panel 11
1111-111nDivide into Part I and Part II；Wherein, the Part I is default around at least one touch points
Scope (comprising the touch points detection unit) and the Part II be other detection units 111.The capacitance touching control
Device 1 performs the running such as the normal mode and in described second in the detection unit 111 of the Part I
The detection unit 111 divided is performed such as the running of the park mode, is herein for convenience of description claimed this operating mode
It is snooze modes.Mandatory declaration is that heretofore described snooze modes may be selected not implement；That is, described normal
The detection unit 111 can not in addition be divided into different zones under pattern.
Refer to shown in Fig. 3 A and Fig. 3 B, the capacitive touch device 1 of its display embodiment of the present invention is in the hibernation mode
The schematic diagram of the measurement data of reading part point detection unit.As it was previously stated, when the control process circuit 13 judges Preset Time
It is interior when touching the contact panel 11 without any finger then into the park mode saving power consumption.Under the park mode,
The input drive signal Sd of the control process circuit 13 to the contact panel 11 all or part of detection unit 111 and only read
The measurement data of the part detection unit 111 is taken, when the control process circuit 13 judges that at least one detection unit 111 is examined
When measuring touch event, then the capacitive touch device 1 is controlled to return to normal mode.
Fig. 3 A and Fig. 3 B show that the control process circuit 13 reads the detection list of different piece during consecutive frame
The measurement data of unit 111, such as read during m frames and respectively different detection units 111 during (m ± 1) frame.Borrow
This, when touch event occurs only at single detection unit 111, can be avoided terminating the situation of park mode.For example, figure
3A shows that the part detection unit 111 that the control process circuit 13 is read is in checkerboard pattern；Fig. 3 B show institute
State the detection unit 111 that the part that control process circuit 13 read is non-conterminous row.It should be noted that, as long as energy
Enough that all detection units 111 have been obtained during at least two consecutive frames, the control process circuit 13 is during each frame
The distribution of the part detection unit 111 for being read is not limited to shown in Fig. 3 A and Fig. 3 B, such as described control process circuit
13 parts read or the detection unit 111 of non-conterminous row.In the present invention, refer to during the frame at the control
During reason circuit 13 scans through detection unit 111 described in all or part and is once reported (report).
In the present invention, the control process circuit 13 can be further in the normal mode or the park mode with identical
Or different number of samples reads the measurement data of the detection unit 111.
In one embodiment, the control process circuit 13 can read all detection units 111 in the normal mode
A touch event or touch coordinate are reported during measurement data, and relatively each frame.Refer to shown in Fig. 4, it shows this hair
Schematic diagram of the capacitive touch device 1 of bright embodiment in normal mode；In another embodiment, the control in the normal mode
Process circuit 13 can read the measurement data of all detection units 111 of the detection unit 111 of Part I 111a and read
Take the measurement data of the part detection unit 111 of the detection unit 111 of Part II 111b；Wherein, the Part I
111a is, for example, during preset range and the Part II 111b are, for example, the contact panel 11 around touch points Tc described
All or part of detection unit 111 beyond a part of 111a；Whereby, described in the control process circuit 13 can only read
The measurement data of the part detection unit 111 beyond Part I 111a, therefore can in the normal mode carry out power saving, i.e. part
Park mode.
In sum, in the present invention, the control process circuit 13 can be made by park mode or snooze modes
Only reading part divides the measurement data of detection unit 111, to save power consumption.
Refer to shown in Fig. 5, the running schematic diagram of the capacitive touch device of its display first embodiment of the invention.This reality
Apply in example, under normal mode, the control process circuit 13 is with the first number of samples SN1Read the detection unit 1111-111n
Measurement data；Under park mode, the control process circuit 13 is with the second number of samples SN2Read the detection unit 1111-
111nMeasurement data, with the park mode save power consumption；Wherein, the second number of samples SN2Less than described first
Number of samples SN1.In the present embodiment, the control process circuit 13 is all the time with identical sample frequency (sampling
Frequency a multiple measurement data of each detection unit 111) are read.
Operation chart under Fig. 5 A display normal modes.When the control process circuit 13 judges there is at least one hand
When finger touches the contact panel 11 (such as normal mode of Fig. 7), the control process circuit 13 is read with the sample frequency
Each detection unit 1111-111nFirst number of samples SN1Measurement data；Wherein, the first number of samples SN1For example may be used
It is 128, but is not limited thereto.During frame, the control process circuit 13 scans through all detection units 111 and reports and touches
Control information.
Operation chart under Fig. 5 B and Fig. 5 C display park modes.When the control process circuit 13 judges Preset Time
When not having any finger to touch the contact panel 11 (such as park mode of Fig. 7), the control process circuit 13 is adopted with described
Sample frequency reads each detection unit 1111-111nSecond number of samples SN2Measurement data；Wherein, second number of samples
SN2For example can be 64 or 32, but be not limited thereto.In the present embodiment, because the normal mode and the park mode are equal
During with identical frame, the control process circuit 13 has read the measurement of second number of samples under the park mode
Enter idle state after data；For example, Fig. 5 B show that the control process circuit 13 is readable takes all detection units 1111-
111nMeasurement data after just enter idle state；Fig. 5 C show that the control process circuit 13 can read each detection unit
Enter idle state after 111 measurement data.Because the control process circuit 13 reads less adopting with identical sample frequency
The measurement data of sample number, therefore be input into the drive signal Sd and read time of the measurement data Sm and shorten, and can be in
Power consumption (such as the idle period in Fig. 5 B and Fig. 5 C carries out power saving) is saved during each frame.
In another embodiment, the control process circuit 13 can be with second number of samples under the park mode
SN2Only read the measurement data of the part detection unit 111, hatched example areas as shown in Figure 3 A and Figure 3 B, further to put forward
Power saving effect high.Similarly, under the park mode, the control process circuit 13 is during consecutive frame with second hits
Mesh SN2Read the measurement data of the detection unit 111 of different piece.
In details of the words, in first embodiment, the control process circuit 13 can be with relatively low hits in the hibernation mode
The measurement data that mesh reads all or part detection unit 111 reaches the purpose for saving power consumption to determine touch information, whereby.
Another operation chart (i.e. snooze modes) under Fig. 5 D and Fig. 5 E display normal modes.At the control
Reason circuit 13 judges then to enter normal mode when touching the contact panel 11 in the presence of at least one finger, but the now control
Process circuit processed 13 is with the first number of samples described in the detection unit 111 of sample frequency reading Part I 111a
SN1Measurement data (such as detection unit 1113With 1114) and with the inspection of sample frequency reading Part II 111b
Survey the number of samples SN of unit 111 second2Measurement data (such as detection unit 1113With 1114Detection unit in addition), with
Also the purpose for saving power consumption can be reached under normal mode.In the present embodiment, the Part I 111a is pre- around touch points Tc
If scope and the Part II 111b are (such as partial sleep of Fig. 7 of detection unit 111 beyond the Part I 111a
Pattern).In the present embodiment, during being respectively provided with identical frame due to the normal mode and the snooze modes, in reading
During the measurement data of the detection unit 111 of the Part II 111b of the detection unit 111, the control process electricity
The second number of samples SN is read in road 132The measurement data after i.e. enter idle state；For example, Fig. 5 D show described
Just enter idle state after the readable measurement data for taking all detection units 111 of control process circuit 13；Fig. 5 E show described
The measurement data that control process circuit 13 can read each detection unit 111 in the Part II 111b (is for example detected single
Unit 1113With 1114Detection unit in addition) it is afterwards that the detection unit in the Part I 111a is read into idle state
(such as detection unit 111 after 111 measurement data3With 1114) without idle state.
In another embodiment, the contact panel 11 can be divided into three parts respectively with not by the control process circuit 13
Same number of samples reads a multiple measurement data of the detection unit, such as described in another part park mode of Fig. 7
Control process circuit 13 is with the first number of samples SN1Read the measurement number of the detection unit 111 of Part I 111a
According to, with the second number of samples SN2Read the measurement data of the detection unit 111 of Part II 111b and adopted with the 3rd
Sample number reads the measurement data of the detection unit 111 of Part III 111c；Wherein, the 3rd number of samples can be between
The first number of samples SN1With the second number of samples SN2Between, and the Part III 111c is preferably between described first
Between part 111a and the Part II 111b.Whereby, when finger is removed outside the Part I 111a during next frame
When, the control process circuit 13 can more immediately detect touch event；Wherein, the Part III 111c can be according to different realities
Example is applied suitably to select.
Refer to shown in Fig. 6, the running schematic diagram of the capacitive touch device of its display second embodiment of the invention.This reality
In applying example, under normal mode the control process circuit 13 during the first frame with the first number of samples SN1Read the detection
Under the measurement data and park mode of unit 111 the control process circuit 13 during the second frame with the second number of samples SN2
Read the measurement data of the detection unit 111；Wherein, the second number of samples SN2Less than the first number of samples SN1
And during first frame is shorter than during second frame.In the present embodiment, the control process circuit 13 is equally all the time with phase
With sample frequency read the detection unit such as each 111 a multiple measurement data and each frame during not comprising idle state.
Operation chart under Fig. 6 A display normal modes, the normal mode of the present embodiment is identical with Fig. 5 A, therefore in this not
Repeat again.
Operation chart under Fig. 6 B display park modes.When the control process circuit 13 judges that Preset Time is not appointed
When what finger touches the contact panel 11, the control process circuit 13 reads each detection unit with the sample frequency
1111-111nSecond number of samples SN2Measurement data.Difference with first embodiment is, due to the control under park mode
Process circuit processed 13 changes the measurement data that the detection unit 111 is read with relatively low number of samples, therefore can shorten frame time
To increase detection instantaneity；Another second frame is for example just directly entered after second frame end of Fig. 6 B and second frame is not wrapped
Containing standby time；Whereby, the instantaneity of detection touching for the first time can be increased under identical power consumption to terminate park mode.
In another embodiment, the control process circuit 13 can also be with second number of samples under the park mode
SN2Only read the measurement data of the part detection unit 111, hatched example areas as shown in figs.3 a and 3b, further to improve
Power saving effect.Similarly, under the park mode, the control process circuit 13 can be with described during the second adjacent frame
Two number of samples SN2Read the measurement data of the detection unit 111 of different piece.
In details of the words, in second embodiment, the control process circuit 13 can be with relatively low sampling in the hibernation mode
Number reads the measurement data of all or part detection unit 111 to determine touch information, shortens terminate park mode whereby
Reaction time.
Fig. 6 C show another operation chart (i.e. under snooze modes) of normal mode.When the control process circuit
13 judge then to enter normal mode when touching the contact panel 11 in the presence of at least one finger, but the now control process
Circuit 13 is during the 3rd frame with the first number of samples SN1Read the survey of the detection unit 111 of Part I 111a
Amount data (such as detection unit 1113With 1114) and with the second number of samples SN2Read the inspection of Part II 111b
Survey measurement data (such as detection unit 111 of unit 1113With 1114Detection unit in addition), with can also be reached under normal mode
To the purpose for saving power consumption；Wherein, due to the control process circuit 13 in the subregion of the contact panel 11 with relatively low
Number of samples read measurement data, during being longer than second frame during being shorter than first frame during the 3rd frame.
Similarly, in the present embodiment, the Part I 111a can for the preset range around touch points Tc the Part II 111b
It can be all or part of detection unit 111 beyond the Part I 111a.Similarly, detection unit described in the present embodiment
1111-111nAlso the part of more than three can be divided into and the measurement number of different piece is read with different number of samples respectively
According to.Additionally, in present invention explanation, the indicant that the touch points Tc can for example be obtained by the scanning during a preceding frame is sat
Mark；Wherein, normal mode of the present invention, park mode or snooze modes are operable in during a preceding frame.
The capacitive touch device 1 preferably is used to store the instruction article coordinate comprising storage element.
It should be noted that, although various embodiments of the present invention are illustrated as an example with mutual capacitance type capacitance sensing apparatus,
But present invention may also apply to other touch sensing devices, such as self-tolerant capacitance sensing apparatus, resistance-type sensing device further, optics
Formula sensing device further etc. can cover in the sensing device further in touch-control system primary operational region.For example, in cell type optical sensing device further
In, also dependent on reduce each photosensitive unit (cell) corresponding to near-infrafed photodiodes (photodiode) time for exposure or
Alternately the near-infrafed photodiodes of the part photosensitive unit of switching contact panel carry out the photosensitive province that the embodiment of the present invention is similar to reach
Electric purpose.
In sum, it is known that capacitance type touch-control panel is to carry out power saving by changing scan frequency, but has reduction to react
The problem of sensitivity.Therefore, the present invention a kind of capacitive touch device (Fig. 1 and Fig. 2) is also provided, its in the hibernation mode and
When the overall power consumption of contact panel can be reduced under normal mode, and the detection detection that touching occurs for the first time will not be postponed
Between.
Although the present invention is disclosed by previous examples, it is not limited to the present invention, and any present invention is affiliated
In technical field with usual knowledge technical staff, without departing from the spirit and scope of the present invention, when can make it is various more
Dynamic and modification.Therefore protection scope of the present invention is worked as the scope defined depending on appended claims and is defined.
Claims (20)
1. a kind of capacitive touch device, the capacitive touch device is included：
Contact panel, the multiple detection units comprising matrix arrangement；And
Control process circuit, the detection unit to input drive signal to the contact panel and successively from being read
Each described detection unit reads multiple measurement data；Wherein, the control process circuit is adopted with first in the normal mode
The multiple measurement data of each detection unit that sample number is read and the control process circuit are stopped
The multiple measurement data of each detection unit read with the second number of samples under sleep mode, described
Two number of samples are less than first number of samples.
2. capacitive touch device according to claim 1, wherein the control process circuit in the normal mode and
The multiple measurement data is read with identical sample frequency under the park mode；The control process circuit is stopped described
Enter idle state after the multiple measurement data that second number of samples has been read under sleep mode.
3. capacitive touch device according to claim 1 and 2, wherein the control process circuit is in the normal mode
Under with first number of samples read the multiple detection unit Part I detection unit multiple measurement data and with
Second number of samples reads multiple measurement data of the Part II detection unit of the multiple detection unit.
4. capacitive touch device according to claim 3, wherein the Part I is the default model around touch points
Enclose.
5. capacitive touch device according to claim 4, wherein the Part II is beyond the Part I
All or part of detection unit.
6. capacitive touch device according to claim 3, wherein reading the Part II of the detection unit
During the multiple measurement data of detection unit, the control process circuit has read the multiple of second number of samples
Enter idle state after measurement data.
7. capacitive touch device according to claim 1 and 2, wherein the control process circuit is in the park mode
Under multiple measurement data of the part detection unit are only read with second number of samples.
8. capacitive touch device according to claim 7, wherein the control process circuit during consecutive frame with institute
State multiple measurement data that the second number of samples reads the detection unit of different piece.
9. capacitive touch device according to claim 1 and 2, wherein the normal mode and the park mode have
During identical frame.
10. a kind of capacitive touch device, the capacitive touch device is included：
Contact panel, the multiple detection units comprising matrix arrangement；And
Control process circuit, the detection unit to input drive signal to the contact panel is simultaneously each from what is read
The individual detection unit is successively read multiple measurement data；Wherein described control process circuit is in the normal mode in the first frame phase
Between at the multiple measurement data of each detection unit that is read with the first number of samples and the control
Each detection unit that reason circuit is read during the second frame with the second number of samples in the hibernation mode
The multiple measurement data, second number of samples is shorter than described during being less than first number of samples and second frame
During first frame.
11. capacitive touch devices according to claim 10, wherein the control process circuit is in the normal mode
Under read with first number of samples during the 3rd frame the multiple detection unit Part I detection unit multiple
The multiple of measurement data and the Part II detection unit that the multiple detection unit is read with second number of samples is measured
During first frame being shorter than during data, the 3rd frame.
12. capacitive touch devices according to claim 11, wherein the Part I is default around touch points
Scope.
13. capacitive touch devices according to claim 12, wherein the Part II is beyond the Part I
All or part of detection unit.
14. capacitive touch devices according to claim 10, wherein the control process circuit is in the park mode
Under with multiple measurement data of second number of samples only reading part point detection unit.
15. capacitive touch devices according to claim 14, wherein the control process circuit is in the second adjacent frame
Period reads multiple measurement data of the detection unit of different piece with second number of samples.
A kind of 16. capacitive touch devices, the capacitive touch device is included：
Contact panel, the multiple detection units comprising matrix arrangement；And
Control process circuit, the detection unit to input drive signal to the contact panel and successively from being read
Each described detection unit reads multiple measurement data；Wherein, the control process circuit is adopted with first in the normal mode
Sample number read the multiple measurement data of each detection unit and the control process circuit in the hibernation mode
With the multiple measurement data of the second number of samples only reading part point detection unit, second number of samples is less than described the
One number of samples.
17. capacitive touch devices according to claim 16, wherein the control process circuit exists in the hibernation mode
Multiple measurement data of the detection unit of different piece are read during consecutive frame.
18. capacitive touch device according to claim 16 or 17, wherein the institute that the control process circuit is read
Part detection unit is stated to be in checkerboard pattern or be non-conterminous row or the detection unit of non-conterminous row.
19. capacitive touch devices according to claim 16, wherein the control process circuit is in snooze modes
Multiple measurement data of all detection units and institute is read in the lower Part I detection unit for reading the multiple detection unit
State multiple measurement data of part detection unit in the Part II detection unit of multiple detection units.
20. capacitive touch devices according to claim 19, wherein the Part I is default around touch points
Scope.
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| CN201310085351.2A CN104063096B (en) | 2013-03-18 | 2013-03-18 | Capacitive touch control device |
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| CN201310085351.2A CN104063096B (en) | 2013-03-18 | 2013-03-18 | Capacitive touch control device |
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| CN106951114A (en) * | 2016-01-07 | 2017-07-14 | 北京小米移动软件有限公司 | Scan control method and device, electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101639750A (en) * | 2008-08-01 | 2010-02-03 | 索尼株式会社 | Touch panel and method for operating the same, and electronic apparatus and method for operating the same |
| CN102239466A (en) * | 2009-02-27 | 2011-11-09 | 索尼公司 | Display device, touch panel, and electronic equipment |
| CN102576278A (en) * | 2009-07-28 | 2012-07-11 | 赛普拉斯半导体公司 | Dynamic mode switching for fast touch response |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101639750A (en) * | 2008-08-01 | 2010-02-03 | 索尼株式会社 | Touch panel and method for operating the same, and electronic apparatus and method for operating the same |
| CN102239466A (en) * | 2009-02-27 | 2011-11-09 | 索尼公司 | Display device, touch panel, and electronic equipment |
| CN102576278A (en) * | 2009-07-28 | 2012-07-11 | 赛普拉斯半导体公司 | Dynamic mode switching for fast touch response |
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