CN101901070B - Touch device and driving method for touch panel thereof - Google Patents
Touch device and driving method for touch panel thereof Download PDFInfo
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- CN101901070B CN101901070B CN201010114444XA CN201010114444A CN101901070B CN 101901070 B CN101901070 B CN 101901070B CN 201010114444X A CN201010114444X A CN 201010114444XA CN 201010114444 A CN201010114444 A CN 201010114444A CN 101901070 B CN101901070 B CN 101901070B
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Abstract
The invention discloses a touch device and a driving method for a touch panel thereof. The touch device comprises the touch panel, a sensing unit and an arithmetic unit, wherein the sensing unit is coupled with the touch panel for scanning a scanning area of the touch panel to output a touch signal; the arithmetic unit is coupled with the sensing unit for determining the scanning area according to the touch signal; when the touch signal corresponds to a first closed path, the arithmetic path defines a closed area formed by the first closed path as a first touch sub-area; when the first touch sub-area is not defined, the arithmetic unit takes the entire touch area of the touch panel as the scanning area; and after the first touch sub-area is defined, the arithmetic unit takes the first touch sub-area as the scanning area.
Description
Technical field
The invention relates to a kind of contactor control device, and particularly relevant for the driving method of a kind of contactor control device and contact panel thereof.
Background technology
Along with making rapid progress of technology, most electronic installation, for example: electronic installations such as mobile computer, mobile phone or portable multimedia player, dispose contact panel, usually to replace the input interface of conventional keyboard as a new generation.Contact panel roughly can be divided into resistance-type, condenser type, infrared-type and ultrasonic formula etc., is modal product with electric resistance touch-control panel and capacitance type touch-control panel wherein.Above-mentioned contact panel generally all comes the sensing touch points with all touch areas of scanning contact panel when running.
With the projecting type capacitor contact panel, when the size of panel was big more, the number of sensor also can be many more, and related contact panel run-down required time also will significantly promote.In some cases, user's operation of carrying out contact panel not necessarily can use touch areas all on the contact panel.And; When contact panel uses in multi-person interactive teaching or public system, and contact panel be under all spendable situation in all touch areas, a certain user during at the use contact panel; Receive the interference of other user's operation easily, perhaps have influence on other user's operation.Therefore, keep contact panel and not only can lower efficiency, also seem simultaneously than non insurance for all spendable practice in all touch areas.
Summary of the invention
The present invention provides a kind of contactor control device, can according to the less scanning area of user's requirements set, to improve the control efficiency of contactor control device, reduces power consumption, avoids receiving the interference of other user's operation simultaneously.
The present invention also provides a kind of driving method of contact panel, can set a plurality of scanning areas and scan respectively, with a plurality of users' of avoiding same contact panel operation meeting phase mutual interference.
The present invention proposes a kind of contactor control device, and it comprises contact panel, sensing cell and arithmetic element.Sensing cell couples contact panel, touches signal in order to the scanning area of scanning contact panel with output.Arithmetic element couples sensing cell, according to touching signal deciding scanning area.When touching signal corresponding to first closed path, arithmetic element is defined as the first sub-touch area with the formed closed region of first closed path.Wherein, When the undefined first sub-touch area; Arithmetic element with the full touch area of contact panel as scanning area; After the first sub-touch area was defined completion, as scanning area, and the coordinate of the first sub-touch area was stored in the arithmetic element arithmetic element with the first sub-touch area.
In one embodiment of this invention, above-mentioned arithmetic element comprises interpolative operation unit and sub-touch area detector.The interpolative operation unit is according to touching calculated signals a plurality of single-point contacts position or multi-point touch position.Sub-touch area detector couples the interpolative operation unit.When these single-point contact positions formed first closed path, sub-touch area detector was defined as the first sub-touch area with the formed closed region of first closed path.When scanning area is the first sub-touch area; Sub-touch area detector is according to the multi-point touch position of the corresponding first sub-touch area; Scanning area is switched to the full touch area of contact panel, or move the first sub-touch area according to the variation of multi-point touch position.
In one embodiment of this invention, arithmetic element also comprises the coordinate buffer, and it is coupled between interpolative operation unit and the sub-touch area detector, in order to store these single-point contact positions or multi-point touch position.
In one embodiment of this invention, above-mentioned sensing cell comprises a plurality of multiplexers, analog-digital converter and counter.These multiplexers and are exported a plurality of simulating signals in regular turn in order to the scanning area of scanning contact panel.Analog-digital converter couples these multiplexers, in order to being a plurality of digital signals with these analog signal conversion.Counter couples analog-digital converter, in order to a little digital signals are quantized with output touching signal.
In one embodiment of this invention, above-mentioned contact panel is a capacitance type touch-control panel.
The present invention proposes a kind of driving method of contact panel in addition.This driving method comprises: the scanning area of scanning contact panel is with output touching signal; Again define scanning area according to the touching signal, when touching signal, the formed closed region of first closed path is defined as one first sub-touch area corresponding to first closed path.When the undefined first sub-touch area, with the full touch area of contact panel as scanning area.After the first sub-touch area is defined completion, with the first sub-touch area as scanning area.
In one embodiment of this invention; The driving method of contact panel also comprises: when scanning area is the first sub-touch area; If the touching signal that in the first sub-touch area, detected is during corresponding to N touch points; Scanning area is switched to the full touch area of contact panel, and wherein N is a positive integer, and N for example is 3.And,, store the coordinate of the first sub-touch area in touching time of the above-mentioned N of a correspondence touch points during less than time critical values.In touching time during, do not store the coordinate of the first sub-touch area more than or equal to time critical values.
In one embodiment of this invention; The driving method of contact panel; Also comprise: when scanning area is the first sub-touch area,, move the first sub-touch area according to the change in location of these touch points if the touching signal that in the first sub-touch area, detected is during corresponding to M touch points; Wherein M is a positive integer, and M for example is 5.
In one embodiment of this invention, the above-mentioned change in location according to these touch points step that moves the first sub-touch area comprises: the center that calculates these touch points; Move the first sub-touch area according to the variation of center.
In one embodiment of this invention, the driving method of contact panel also comprises: when the touching signal also comprises second closed path, the formed closed region of second closed path is defined as the second sub-touch area; After the first sub-touch area and the second sub-touch area are defined completion, with the first sub-touch area and the second sub-touch area as scanning area.
In one embodiment of this invention, when touching signal corresponding to first closed path, the step that the formed closed region of first closed path is defined as the first sub-touch area comprises: go out a plurality of single-point contacts position according to the touching calculated signals; When these single-point contact positions form first closed path, the formed closed region of first closed path is defined as the first sub-touch area.
In one embodiment of this invention, the first above-mentioned sub-touch area is a rectangular area or a border circular areas.
Based on above-mentioned; The driving method of contactor control device of the present invention and contact panel thereof; Can be when touching signal corresponding to a closed path; The formed closed region of closed path is set at sub-touch area to carry out the scanning of region-type, the time of reducing the sensing contact panel by this, and then the control efficiency of raising contactor control device and minimizing power consumption.In addition, can on contact panel, set a plurality of sub-touch areas, and scan the touching state of this a little touch area respectively, can prevent the phase mutual interference of operating between the user.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended graphic elaborating as follows.
Description of drawings
Fig. 1 is the system's block schematic diagram according to the contactor control device of one embodiment of the invention.
Fig. 2 is the circuit diagram according to the contactor control device of one embodiment of the invention.
Fig. 3 is the waveform synoptic diagram of control signal and multiplexer output of the contactor control device of Fig. 2.
Fig. 4 is another waveform synoptic diagram of control signal and multiplexer output of the contactor control device of Fig. 2.
The synoptic diagram that Fig. 5 A moves for the sub-touch area of the contact panel of Fig. 2.
Fig. 5 B is the synoptic diagram of a plurality of sub-touch areas of the contact panel of Fig. 2.
Fig. 6 is the process flow diagram according to the driving method of the contact panel of one embodiment of the invention.
Embodiment
Fig. 1 is the system's block schematic diagram according to the contactor control device of one embodiment of the invention.Fig. 2 is the circuit diagram according to the contactor control device of one embodiment of the invention.Please with reference to Fig. 1, contactor control device 100 comprises contact panel 110, sensing cell 120 and arithmetic element 130.Sensing cell 120 couples contact panel 110, and regional according to the one scan of control signal Scol scanning contact panel 110, and output touching signal Stou.Arithmetic element 130 couples sensing cell 120, calculates the position of all touch points according to touching signal Stou, and according to the determining positions scanning area of all touch points.And; Arithmetic element 130 can output be touched data Sd (can comprise touch points position and control signal Scol) to electronic installation; With foundation, wherein touch the touch points position that signal Stou is same as touching data Sd in itself, but data mode can be different as the electronic installation running.
In addition, before the sub-touch area of arithmetic element 130 definition, arithmetic element 130 can be with the full touch area of contact panel 110 as scanning area; After accomplish the sub-touch area of arithmetic element 130 definition, then arithmetic element 130 with sub-touch area as scanning area.In other words, when arithmetic element 130 uncertain foster son touch areas, arithmetic element 130 can the whole contact panel 110 of scanning.As touching signal Stou during corresponding to a closed path, 130 of arithmetic elements are defined as sub-touch area with the formed closed region of closed path, and with this sub-touch area as scanning area.Then, the coordinate generation control signal Scol according to sub-touch area gives multiplexer 121 to adjust its scanning area.After the definition of sub-touch area was accomplished, sensing cell 120 only can scan sub-touch area and can not scan whole image, reduced scanning required power consumption and the time of picture by this.
After the definition of sub-touch area was accomplished, the control mode of user's multi-point touch capable of using was cancelled the setting of sub-touch area or the position of mover touch area.For instance; Arithmetic element 130 can switch to scanning area the full touch area of contact panel 110 according to the corresponding touch points number decision of touching signal Stou; Perhaps mover touch area, and produce in view of the above control signal Scol with scan whole contact panel 110 or move after sub-touch area.For example, when touching signal Stou corresponded to N touch points, arithmetic element 130 can switch to scanning area the full touching zone of contact panel 110, and whether stored the coordinate of sub-touch area according to the touching time decision of this N touch points.Just cancel the setting of sub-touch area, rescan whole image, wherein N is a positive integer, for example is 3.When touching signal Stou corresponded to M touch points, 130 of arithmetic elements can be according to the change in location mover touch area of these touch points, and M is a positive integer, for example is 5.Wherein, above-mentioned N and M are inequality.
From the above; When the user need cancel the setting of sub-touch area; Can be simultaneously with three sub-touch areas of finger touches; Arithmetic element 130 just can revert to whole image (being full touch area) with scanning area, lets the user operate, reset sub-touch area or sets another sub-touch area.When the user needs the mover touch area, can 5 fingers be placed on sub-touch area, the just removable sub-touch area of moveable finger then lets the area change of scanning.Numerical value that it should be noted that above-mentioned M, N is merely one embodiment of the invention, also can be set at other numerical value, and the present invention is not as limit.In addition, arithmetic element 130 can be a microcontroller, writes down the program of corresponding above-mentioned action with firmware, so that arithmetic element 130 can realize above-mentioned action.
Please with reference to Fig. 1 and Fig. 2, when contact panel 110 was in the single-point contact state, sub-touch area detector 133 judged whether coordinate buffer 132 stored a plurality of single-point contacts positions are continuous motion track.In other words, whether sub-touch area detector 133 slides on contact panel 110, and whether motion track is a continuous line segment through coordinate buffer 132 stored a plurality of single-point contact position judgment users.And; When motion track forms a closed path (i.e. first closed path 10) continuously; 133 of sub-touch area detectors are defined as a sub-touch area (i.e. the first sub-touch area 11) with first closed path, 10 formed closed regions, and to produce control signal Scol in view of the above be scanning area to set the first sub-touch area 11.By this because 100 of contactor control devices scan scanning area, so but the touch area can be defined in the scanning area, other zone then is can not the touch area.
After 11 definition of the first sub-touch area are accomplished, and the user is when carrying out multi-point touch to the first sub-touch area 11 again, and then the user can set the first sub-touch area 11 according to the number of touch points and the operation of touch points.In other words, when the number of touch points is N (for example being 3 touch points), sub-touch area detector 133 can produce control signal Scol with the full touch area of setting touch panel 110 as scanning area.And in touching time during less than time critical values, sub-touch area detector 133 can store the control signal Scol (being equal to the coordinate that stores the first sub-touch area) of the corresponding first sub-touch area 11; In touching time during more than or equal to time critical values, 133 of sub-touch area detectors can not store the control signal Scol of the corresponding first sub-touch area 11.When the number of touch points was M (for example being 5 touch points), then the sense of displacement according to these touch points moved the first sub-touch area 11, and produced control signal Scol in view of the above to set the first sub-touch area after moving as scanning area.
In addition; In the full touch area of above-mentioned setting touch panel 110 as scanning area; And the control signal Scol of the corresponding first sub-touch area 11 is stored in after the sub-touch area detector 133; If user's motion track forms another closed path (i.e. second closed path) on contact panel 110; Then sub-touch area detector 133 is definition second-sub-touch area, the formed closed region of second closed path, and to produce control signal Scol in view of the above be scanning area to set the first sub-touch area 11 and the second sub-touch area.
Please with reference to Fig. 1 and Fig. 2; In the present embodiment; Contactor control device 200 has a plurality of multiplexers (like 121_1-121_5), and contact panel 110 is that capacitance touching control panel with shaft staggered formula is an example, and remaining component then can be with reference to shown in Figure 1 and related description and understood.In addition; The control signal Scol that is sent to multiplexer 121_1-121_5 and the control signal Scol that is sent to interpolative operation unit 131 in form can different (for example reaching serial) side by side; But be consistent in essence, the control signal Scol that wherein is sent to multiplexer 121_1-121_5 can be divided into control signal Scol_1-Scol_5 to control multiplexer 121_1-121_5 respectively.
Fig. 3 is the waveform synoptic diagram of control signal and multiplexer output of the contactor control device of Fig. 2.Before uncertain foster son touch area, sub-touch area detector 133 can be with the full touch area of contact panel 110 as scanning area.Therefore, contact panel 110 passages (being X1-X6 and Y1-Y4) all must scan, the sensing signal of the whole contact panel 110 of ability sensing.Please with reference to Fig. 3, among the T1, control signal Scol_1-Scol_5 can be high levle during operation, with control multiplexer 121_1-121_5 scanning channel X1-X3 and Y1-Y2, and exports its sensing signal to analog-digital converter 122 in regular turn.Then, control signal Scol_1-Scol_5 can be low level among the T2 during operation, with control multiplexer 121_1-121_5 scanning channel X4-X6 and Y3-Y4, and exports its sensing signal to analog-digital converter 122 in regular turn.Behind T1 and the T2, contactor control device 200 just can be obtained all channel X1-X6 and Y1-Y4 during operation, and with the whole contact panel 110 of this sensing.
On the other hand, when user's motion track forms first closed paths (shown in dotted line 10) at contact panel 110, it be the first sub-touch area 11 that then sub-touch area detector 123 can be set first closed path, 10 formed closed regions.If with the first sub-touch area 11, then 200 of contactor control devices only need be obtained the touching dress attitude that the sensing signal of passage X3-X5 and Y2-Y3 can the sensing first sub-touch area 11.
Fig. 4 is another waveform synoptic diagram of control signal and multiplexer output of the contactor control device of Fig. 2.Please with reference to Fig. 4, behind the definition first sub-touch area 11,200 of contactor control devices can the sensing first sub-touch area 11, so control signal Scol_3 and Scol_5 are set at high levle, control signal Scol_1, Scol_2 and Scol_4 are set at low level.At this moment, multiplexer 121_1-121_5 can obtain passage X4, X5, X3, Y3 and Y2 respectively, and exports its sensing signal to analog-digital converter 122 in regular turn.By this, after setting the first sub-touch area, operating periods of 200 needs of contactor control device (like T1 or T2) can be accomplished the work of contact panel 110 sensings, can promote the control efficiency of contactor control device 200 according to this, and can reduce the consumption of power.
The synoptic diagram that Fig. 5 A moves for the sub-touch area of the contact panel of Fig. 2.Please with reference to Fig. 5 A, if the user will move the first sub-touch area 11,5 fingers then capable of using carry out 5 touchings on the first sub-touch area 11 of contact panel 110, and move these 5 touch points.At this moment, sub-touch area detector 133 can be detected the center of 5 touch points, and moves the first sub-touch area 11 according to the moving direction and the displacement of center.According to above-mentioned; When the user when the direction of arrow 15 moves 5 fingers; Before 5 touch points that are respectively starting point and the terminal point of supposing arrow 15 move and the center after moving, then the first sub-touch area 11 can move to the position of the first sub-touch area 21, and as new scanning area.And if will temporarily cancel the first sub-touch area 21, then the user utilizes 3 fingers on sub-touch area 21, to carry out 3 touchings, and the touching time must be less than time critical values.(that is permanent cancellation) first sub-touch area 21 if will really cancel, then the user carry out touching time of 3 touchings must be more than or equal to time critical values
Fig. 5 B is the synoptic diagram of a plurality of sub-touch areas of the contact panel of Fig. 2.Please with reference to Fig. 5 B; If the temporary transient cancellation of the user first sub-touch area 21; Then sub-touch area detector 133 can store the control signal Scol_1-Scol_5 of the corresponding first sub-touch area 21, and then produces control signal Scol_1-Scol_5 as shown in Figure 3 to scan whole contact panel 110.Then, if the user forms second closed path (shown in dotted line 30) at contact panel 110 again, it is the second sub-touch area 31 that then sub-touch area detector 133 can be set second closed path, 30 formed closed regions.And sub-touch area detector 133 can produce the control signal Scol_1-Scol_5 of the corresponding first sub-touch area 21 and the second sub-touch area 31 respectively, respectively the first sub-touch area 21 and the second sub-touch area 31 are scanned.Wherein, the control signal Scol_1-Scol_5 of the corresponding first sub-touch area 21 and the second sub-touch area 31 can export during different operating, during different operating, to scan the first sub-touch area 21 and the second sub-touch area 31 respectively.By this, contactor control device 200 can be distinguished the sensing first sub-touch area 21 and the second sub-touch area 31, to prevent the phase mutual interference between the user.
What deserves to be mentioned is; Illustrating of the number of above-mentioned touch points and contact panel is merely one embodiment of the invention; This area knows that usually the knowledgeable can change according to the difference of circuit design voluntarily; And then reaching the effect of setting sub-touch area, the shape of its neutron touch area can be rectangle, circle or irregularly shaped.And contactor control device can be set the number of sub-touch area when initialization, and then contactor control device just carries out the scanning of sub-touch area after having set all sub-touch areas.In addition, be applied to the contactor control device of multi-point touch but the embodiment of the invention described above can make an amendment slightly, can reach the raising control efficiency equally, reduce power consumption and prevent the mutual interference of user's phase.In addition, the setting of above-mentioned sub-touch area can provide menu to the user via user's interface, lets the user determine whether to start its set-up function and sets personalized touch area or set a plurality of sub-touch areas.If do not start its set-up function, contact panel then can use as general contact panel according to general sensing modes scanning whole image.
According to the foregoing description, the present invention can summarize the driving method that proposes a kind of contact panel, to be applied to contactor control device 100 or 200.Fig. 6 is the process flow diagram according to the driving method of the contact panel of one embodiment of the invention.Please with reference to Fig. 6, at first can the scanning area of contact panel be scanned (step S601), wherein scanning area is the full touch area of contact panel before the sub-touch area of definition.Then, whether the sensing contact panel is by touching (step S602).If contact panel is not then got back to step S601 to scan contact panel once again by touching.
When contact panel is single-point contact,, and store single-point touch position (step S604) then according to touching calculated signals single-point contact position (step S603).Then, judge whether a plurality of single-point contacts position that calculates in regular turn is continuous motion track (step S605).When a plurality of single-point contacts position is continuous motion track, judge whether continuous motion track forms a closed path (step S606).When continuously motion track forms a closed path, then the formed closed region of this closed path is defined as a sub-touch area, and with this sub-touch area as scanning area (step S607).Wherein, when the judged result of step S605 and S606 is " deny " time, then get back to step S601 to continue the scanning contact panel.By this, can define scanning area again according to the touching signal, that is when touching signal, the formed closed region of closed path is defined as sub-touch area corresponding to a closed path.
When contact panel is N point when touching (for example touching signal corresponding to 3 touch points), judge that these 3 touch points are whether in same sub-touch area (step S608).Be positioned at same sub-touch area and touching time during less than time critical values (step S609) in these 3 touch points; Then store sub-touch areas (step S610) all on the contact panel; And as scanning area (step S611), then get back to the scanning that step S601 carries out contact panel again with the full touch area of contact panel.Be positioned at same sub-touch area and touching time during more than or equal to time critical values (step S609) in these 3 touch points; Then do not store sub-touch areas all on the contact panel; And as scanning area (step S611), then get back to the scanning that step S601 carries out contact panel again with the full touch area of contact panel.
Wherein, because before uncertain foster son touch area, step S608 can't judge according to sub-touch area, thus judged result can for " deny ", and after sub-touch area defines execution in step S609-S611.And, when the judged result of step S608 is " deny " time, then get back to step S601 to continue the scanning contact panel.By this; After the definition of sub-touch area is accomplished; And during corresponding to 3 touch points, then whether store the coordinate of sub-touch area at touching signal that sub-touch area detected according to the decision of touching time, and then with the full touch area of contact panel as scanning area.
When contact panel is M point when touching (for example touching signal corresponding to 5 touch points), judge that these 5 touch points are whether in same sub-touch area (step S612).When these 5 touch points are positioned at same sub-touch area; Then according to the change in location mover touch area (step S613) of touch points; And as scanning area (step S614), then get back to step S601 to continue the scanning contact panel with the sub-touch area after moving.Wherein, with reference to the explanation of step S608, step S612 just execution in step S613 and S614 after the definition of sub-touch area is accomplished.And, when the judged result of step S612 is " deny " time, then get back to step S601.By this, after the definition of sub-touch area is accomplished, and at touching signal that sub-touch area detected during corresponding to 5 touch points, according to the change in location mover touch area of touch points.Mandatory declaration be that the details of above-mentioned each step can then repeat no more at this with reference to the explanation of contactor control device 100 and 200.
In sum; The contactor control device of the embodiment of the invention and the driving method of contact panel thereof; Can the user formed closed region of on contact panel, sliding be set at sub-touch area, reducing the time of sensing contact panel, and then improve the control efficiency of contactor control device.In addition, can on contact panel, set a plurality of sub-touch areas, and scan the touching state of this a little touch area respectively, can prevent the phase mutual interference of operating between the user.
Though the present invention with embodiment openly as above; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking aforesaid the claim scope person of defining.
Claims (8)
1. a contactor control device is characterized in that, comprising:
One contact panel;
One sensing cell couples this contact panel, touches signal in order to the one scan zone of scanning this contact panel to export one; And
One arithmetic element couples this sensing cell, and according to this this scanning area of touching signal deciding, when this touched signal corresponding to one first closed path, this arithmetic element was defined as one first sub-touch area with this formed closed region of first closed path; This arithmetic element further comprises:
One interpolative operation unit is according to a plurality of single-point contacts of this touching calculated signals position; And
One sub-touch area detector couples this interpolative operation unit, and when those single-point contact positions formed this first closed path, this sub-touch area detector was defined as this first sub-touch area with this formed closed region of first closed path;
This interpolative operation unit is also according to this touching calculated signals one multi-point touch position; And this sub-touch area detector is when this scanning area is this first sub-touch area; According to this multi-point touch position that should the first sub-touch area; This scanning area is switched to the full touch area of this contact panel, or move this first sub-touch area according to the variation of this multi-point touch position;
Wherein, When undefined this first sub-touch area; This arithmetic element with the full touch area of this contact panel as this scanning area; After this first sub-touch area was defined completion, as this scanning area, and the coordinate of this first sub-touch area was for being stored in this arithmetic element with this first sub-touch area for this arithmetic element.
2. contactor control device as claimed in claim 1 is characterized in that, this arithmetic element also comprises a coordinate buffer, is coupled between this interpolative operation unit and this sub-touch area detector, in order to store those single-point contact positions or this multi-point touch position.
3. contactor control device as claimed in claim 1 is characterized in that, this sensing cell comprises:
A plurality of multiplexers in order to scanning this scanning area of this contact panel, and are exported a plurality of simulating signals in regular turn;
One analog-digital converter couples those multiplexers, in order to being a plurality of digital signals with those analog signal conversion; And
One counter couples this analog-digital converter, in order to those digital signals are quantized with this touching signal of output.
4. the driving method of a contact panel is characterized in that, comprising:
The one scan zone of scanning this contact panel is to export a touching signal;
Again define this scanning area according to this touching signal, when this touches signal corresponding to one first closed path, this formed closed region of first closed path is defined as one first sub-touch area;
When this scanning area is this first sub-touch area, if this touching signal of in this first sub-touch area, being detected is during corresponding to N touch points, this scanning area is switched to the full touch area of this contact panel, wherein N is a positive integer;
Touching time of the above-mentioned N of a correspondence touch points less than time during critical value, store the coordinate of this first sub-touch area; And
In this touching time during, do not store the coordinate of this first sub-touch area more than or equal to this time critical values;
Wherein, when undefined this first sub-touch area, with the full touch area of this contact panel as this scanning area, after this first sub-touch area is defined completion, with this first sub-touch area as this scanning area.
5. the driving method of contact panel as claimed in claim 4 is characterized in that, also comprises:
When this scanning area is this first sub-touch area; If this touching signal of in this first sub-touch area, being detected is during corresponding to M touch points; Change in location according to those touch points moves this first sub-touch area, and wherein M is a positive integer, and M and N are inequality.
6. the driving method of contact panel as claimed in claim 5 is characterized in that, the step that moves this first sub-touch area according to the change in location of those touch points comprises:
Calculate a center of those touch points; And
Move this first sub-touch area according to the variation of this center.
7. the driving method of contact panel as claimed in claim 4 is characterized in that, also comprises:
When this touching signal also comprises one second closed path; This formed closed region of second closed path is defined as one second sub-touch area; And after this first sub-touch area and this second sub-touch area are defined completion, with this first sub-touch area and this second sub-touch area as this scanning area.
8. the driving method of contact panel as claimed in claim 4 is characterized in that, when this touched signal corresponding to this first closed path, the step that this formed closed region of first closed path is defined as this first sub-touch area comprised:
Go out a plurality of single-point contacts position according to this touching calculated signals; And
When those single-point contact positions form this first closed path, this formed closed region of first closed path is defined as this first sub-touch area.
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| CN201010114444XA CN101901070B (en) | 2010-02-09 | 2010-02-09 | Touch device and driving method for touch panel thereof |
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| CN201010114444XA CN101901070B (en) | 2010-02-09 | 2010-02-09 | Touch device and driving method for touch panel thereof |
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| TWI463361B (en) * | 2011-07-13 | 2014-12-01 | Compal Electronics Inc | Control method and system by partial touch panel |
| TW201317848A (en) * | 2011-10-24 | 2013-05-01 | Rich Ip Technology Inc | Control system for integrating plural sets of sensing plane data |
| CN103096045B (en) * | 2011-10-28 | 2016-03-23 | 宏碁股份有限公司 | Gesture is utilized to adjust the method for video image compression |
| TWI599924B (en) * | 2013-07-19 | 2017-09-21 | 和冠股份有限公司 | Method for scanning touch event |
| CN106160720B (en) * | 2015-03-27 | 2019-07-12 | 楚博纯 | Gestural control method, switch panel and switching system based on intelligent switch panel |
| CN110119212A (en) * | 2019-06-17 | 2019-08-13 | 北京米物科技有限公司 | A kind of cursor control keyboard |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551721A (en) * | 2008-04-01 | 2009-10-07 | 胜华科技股份有限公司 | Touch-control panel and driving method thereof |
| CN101561730A (en) * | 2008-04-16 | 2009-10-21 | 义隆电子股份有限公司 | Power-saving capacitance touch control device and method thereof |
| CN101615097A (en) * | 2009-08-05 | 2009-12-30 | 福州华映视讯有限公司 | The scan method of contact panel |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551721A (en) * | 2008-04-01 | 2009-10-07 | 胜华科技股份有限公司 | Touch-control panel and driving method thereof |
| CN101561730A (en) * | 2008-04-16 | 2009-10-21 | 义隆电子股份有限公司 | Power-saving capacitance touch control device and method thereof |
| CN101615097A (en) * | 2009-08-05 | 2009-12-30 | 福州华映视讯有限公司 | The scan method of contact panel |
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