CN102541337B - Device and method for detecting multi-stage scanning touch position - Google Patents
Device and method for detecting multi-stage scanning touch position Download PDFInfo
- Publication number
- CN102541337B CN102541337B CN201010621659.0A CN201010621659A CN102541337B CN 102541337 B CN102541337 B CN 102541337B CN 201010621659 A CN201010621659 A CN 201010621659A CN 102541337 B CN102541337 B CN 102541337B
- Authority
- CN
- China
- Prior art keywords
- coordinate
- touch
- scanning
- stage
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention relates to a device and a method for detecting a multi-stage scanning touch position. The device is provided with a scanning line connecting circuit, a touch scanning unit and a touch coordinate determining unit, wherein the scanning line connecting circuit is used for controlling the interconnection configuration between a first scanning line group and a second scanning line group, so as to plan the equivalent resolution ratio distribution of a sensor; the second scanning line group is coupled with the sensor; the touch scanning unit is used for selecting a part of scanning lines from the first scanning line group so as to detect a stage touch coordinate; and the touch coordinate determining unit is provided with a plurality of working stages and is used for controlling the scanning line connecting circuit, the touch scanning unit and the detected stage touch coordinate combined in each of the working stages according to the working stages.
Description
Technical field
The invention relates to the device and method for touch control display module, particularly about for the multi-stage scanning touch position arrangement for detecting of touch control display module and method.
Background technology
Press, current touch control display module is generally detect a touch position with the frequency scan mode (such as choose one as feeder ear in turn from a plurality of Y sweep traces, and choose one as receiving end in turn to receive an analog sensing signal from a plurality of X sweep traces) of determining of X-Y array.But, when the size of touch control display module becomes greatly, that is when the number of Y sweep trace and X sweep trace becomes greatly, the pin count that namely traditional X-Y array scanning mode becomes shortage efficiency-its control IC significantly increases, and the display frame of touch control display module is also easily by the interference of its fixed touch-control frequently scanning.
Summary of the invention
The object of the present invention is to provide a kind of multi-stage scanning touch position arrangement for detecting.
Another object of the present invention is to provide a kind of multi-stage scanning touch position method for detecting.
For achieving the above object, multi-stage scanning touch position arrangement for detecting provided by the invention, it has:
Scan line connecting circuit, in order to scan the interconnection configuration between line-group according to scan line connection control signal control one first scanning line-group and one second, to plan the equivalent resolution distribution of a sensor, the second wherein said scanning line-group and this sensor couple;
One touching scanning element, in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal; And
One touch coordinate determining means, has a plurality of working stage, in order to: determine the state of described sweep trace connection control signal and the state of described resolution planning signal according to described working stage; Interim touch coordinate described in reading via the first described coordinate signal; And be combined in the described interim touch coordinate that each described working stage detects.
Multi-stage scanning touch position arrangement for detecting provided by the invention, also has:
Scan line combination circuit, in order to select the some of a three scan line group to be connected to one second scanning line-group according to scan line combination circuit control signal, to select a subregion from a sensor, wherein this three scan line group and this sensor couple;
Scan line connecting circuit, in order to scan the interconnection configuration between line-group according to scan line connection control signal control one first scanning line-group and described second, to plan the equivalent resolution distribution of this subregion;
One touching scanning element, in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal; And
One touch coordinate determining means, there is scan line combination circuit operation stage and a subregion sweep phase, wherein this subregion sweep phase has a plurality of working stage, this touch coordinate determining means in order to: this scan line combination circuit operation stage determine described scan line combination circuit control signal state and produce a subregion coordinate; The state of described sweep trace connection control signal and the state of described resolution planning signal is determined according to described working stage at this subregion sweep phase, and the interim touch coordinate described in reading from the first described coordinate signal; And the described interim touch coordinate combining this subregion coordinate and detect at each described working stage.
Described multi-stage scanning touch position arrangement for detecting, wherein, described sensor is the array touch sensing of resistance-type, condenser type, sound wave type or electromagnetic type.
Described multi-stage scanning touch position arrangement for detecting, wherein, this equivalent resolution distribution is one to be uniformly distributed or a uneven distribution.
Described multi-stage scanning touch position arrangement for detecting, wherein, this touching scanning element comprises an analog-to-digital converter.
Described multi-stage scanning touch position arrangement for detecting, wherein, this scan line combination circuit is integrated in this sensor in the mode of glass flip chip.
Multi-stage scanning touch position method for detecting provided by the invention, its step comprises:
With the first coordinate of a touch event of the first equivalent resolution distribution detecting one sensor;
The regional area being distributed in the described sensor corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event; And
Combine this first coordinate and this second coordinate.
Multi-stage scanning touch position method for detecting provided by the invention, its step also comprises:
Select a subregion in the mode of a subarea-scanning from a sensor, wherein said subregion corresponds to a subregion coordinate;
With the first coordinate of the described subregion one touch event of the first equivalent resolution distribution detecting;
The regional area being distributed in the described subregion corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event; And
Combine this subregion coordinate, this first coordinate and this second coordinate.
Described touch position method for detecting, wherein, comprises with the step of the described sensor of equivalent resolution distribution detecting of 1 × 1.
Described touch position method for detecting, wherein, this first equivalent resolution is distributed as one and is uniformly distributed or a uneven distribution.
Described touch position method for detecting, wherein, this second equivalent resolution is distributed as one and is uniformly distributed or a uneven distribution.
Multi-stage scanning touch position arrangement for detecting provided by the invention, operates power consumption with the detecting efficiency, the reduction that promote touch position, reduce the pin count of control IC, reduces Electromagnetic Interference and the interference of minimizing to display frame.
Multi-stage scanning touch position method for detecting provided by the invention, operates power consumption with the detecting efficiency, the reduction that promote touch position, reduce the pin count of control IC, reduces Electromagnetic Interference and the interference of minimizing to display frame.
Accompanying drawing explanation
Fig. 1 (a) ~ 1 (c) illustrates the present invention and utilizes multi-stage scanning to detect the conceptual illustration figure of a touch position in a touch control display module.
Fig. 2 (a) ~ 2 (b) illustrates the conceptual illustration figure of combinatorial coordinates of the present invention.
Fig. 3 illustrates the circuit block diagram of multi-stage scanning touch position arrangement for detecting one of the present invention preferred embodiment.
Fig. 4 illustrates the circuit block diagram of its another preferred embodiment of multi-stage scanning touch position arrangement for detecting of the present invention.
Embodiment
The present invention proposes the touch position detecting mechanism of a novelty, it can detect a touch position by a multi-stage scanning mode, to solve touch control display module institute problems faced in known technology.
Multi-stage scanning touch position arrangement for detecting provided by the invention, it has scan line connecting circuit, touching scanning element and a touch coordinate determining means.
This sweep trace connecting circuit is the interconnection configuration in order to scan according to scan line connection control signal control one first scanning line-group and one second between line-group, to plan the equivalent resolution distribution of a sensor, the second wherein said scanning line-group and this sensor couple.
This touching scanning element is in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal.
This touch coordinate determining means has a plurality of working stage, and it is in order to the state that determines the state of described sweep trace connection control signal and described resolution planning signal according to described working stage; Interim touch coordinate described in reading via the first described coordinate signal; And be combined in the described interim touch coordinate that each described working stage detects.
Another multi-stage scanning touch position arrangement for detecting of the present invention, it has scan line combination circuit, scan line connecting circuit, touching scanning element and a touch coordinate determining means.
This scan line combination circuit is that to select a subregion from a sensor, wherein this three scan line group and this sensor couple in order to select the some of a three scan line group to be connected to one second scanning line-group according to scan line combination circuit control signal.
This sweep trace connecting circuit is the interconnection configuration in order to scan according to scan line connection control signal control one first scanning line-group and described second between line-group, to plan the equivalent resolution distribution of this subregion.
This touching scanning element is in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal.
This touch coordinate determining means has scan line combination circuit operation stage and a subregion sweep phase, and wherein this subregion sweep phase has a plurality of working stage.This touch coordinate determining means be in order to: this scan line combination circuit operation stage determine described scan line combination circuit control signal state and produce a subregion coordinate; The state of described sweep trace connection control signal and the state of described resolution planning signal is determined according to described working stage at this subregion sweep phase, and the interim touch coordinate described in reading from the first described coordinate signal; And the described interim touch coordinate combining this subregion coordinate and detect at each described working stage.
Multi-stage scanning touch position method for detecting of the present invention, it has following step:
Step is a) with the first coordinate of the first equivalent resolution distribution detecting one sensor one touch event.
Step b) regional area that is distributed in the described sensor corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event.
Step c) combine this first coordinate and this second coordinate.
Another multi-stage scanning touch position method for detecting of the present invention, it has following step:
Step a) selects a subregion in the mode of a subarea-scanning from a sensor, and wherein said subregion corresponds to a subregion coordinate.
Step b) with the first coordinate of the described subregion one touch event of the first equivalent resolution distribution detecting.
Step c) regional area that is distributed in the described subregion corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event.
Steps d) combine this subregion coordinate, this first coordinate and this second coordinate.
For structure of the present invention, feature and object thereof can be understood further, elaborate in conjunction with preferred embodiment with accompanying drawing.
Please refer to Fig. 1 (a) ~ 1 (c), is illustrate that the present invention utilizes multi-stage scanning to detect the conceptual illustration figure of a touch position in a touch control display module.Fig. 1 a represents the stage one: make this touch control display module be equivalent to the touch surface of tool 1 × 1 resolution and carry out touch detection; Fig. 1 b represents the stage two: make this touch control display module be equivalent to the touch surface of tool 2 × 2 resolution and carry out touch detection; Fig. 1 c represents the stage three: make this touch control display module be equivalent to the touch surface be made up of the sub-touch surface of 4 tool 2 × 2 resolution, and carry out touch detection, wherein, the symbol X come across in each figure indicates one to betide the bottom-right touch event of this touch control display module.After this touch event occurs, this three stages embodiment of the present invention is first via stage on detection of this touch event, then one first coordinate is detected via the stage two, detect one second coordinate via the stage three again, then determined the touch position of this touch event by this first coordinate of combination and this second coordinate.
The aforementioned concept about combinatorial coordinates can be illustrated further by Fig. 2 (a) ~ 2 (b).As shown in Fig. 2 (a), the coordinates matrix of this touch surface can be analyzed to three matrix sums, wherein the coordinate space in the first matrix representative stage one, and its all coordinate element is (0,0), the coordinate space in the second matrix representative stage two, it is by (0 at the submatrix of upper left, 0), (0, 0), (0, 0), (0, 0) totally 4 identical element compositions, the submatrix of upper right is by (0, 2), (0, 2), (0, 2), (0, 2) totally 4 identical element compositions, the submatrix of lower-left is by (2, 0), (2, 0), (2, 0), (2, 0) totally 4 identical element compositions, and the submatrix of bottom right is by (2, 2), (2, 2), (2, 2), (2, 2) totally 4 identical element compositions, and the coordinate space in the 3rd matrix representative stage three, its in upper left, upper right, lower-left and bottom right submatrix be all by (0,0), (0,1), (1,0), (1,1) totally 4 differential elements form.
This first matrix is corresponding with Fig. 1 (a), that is it is the touch surface that the mode being (0,0) with all elements represents tool 1 × 1 equivalent resolution.This second matrix is corresponding with Fig. 1 (b), that is it is (0 with all elements of upper left submatrix, 0), the all elements of upper right submatrix is (0,2), all elements of lower-left submatrix is (2,0), and all elements of the bottom right submatrix mode that is (2,2) represents the touch surface of tool 2 × 2 equivalent resolution.3rd matrix is corresponding with Fig. 1 (c), that is it is (by (0 with 4 identical submatrixs, 0), (0,1), (1,0), (1,1) totally 4 differential element compositions) represent the touch surface be made up of the sub-touch surface of 4 tool 2 × 2 equivalent resolution.
In Fig. 2 (b), be with bottom line mark the dependent coordinate corresponding with the symbol X in Fig. 1 (a) ~ 1 (c)-
(2,3),
(0,0),
(2,2),
(0,1), and the relation between described dependent coordinate can be shown as (2,3)=(2,2)+(0,1).That is, when via the stage one with 1 × 1 equivalent resolution detect this X touch event, the coordinate that namely this embodiment produces (0,0); Then via the stage two with 2 × 2 equivalent resolution scanning and produce the coordinate (2,2) corresponding with X; After entering the stage three, the block that the equivalent resolution sweep phase two with 2 × 2 detects is to produce the coordinate (0,1) corresponding with X, then by combination (2,2) with (0,1) and determine the touch coordinate (2,3) of this touch event.
With regard to general situation, suppose a coordinates matrix
m jKresolution be J × K, wherein J, K are positive integer.If J=N
1× N
2for an isolation of J, K=L
1× L
2for an isolation of K, then its resolution can be shown as N
1× N
2× L
1× L
2=(1 × 1) × (N
1× L
1) × (N
2× L
2), wherein N
1, N
2, L
1, L
2be positive integer.Through sequentially with the coordinate of the resolution scan-gained of 1 × 1 be (0,0), with N
1× L
1the coordinate of resolution scan-gained be (x
1, y
1) and with N
2× L
2resolution scan (x
1, y
1) coordinate of sub-block-gained that points to is (x
2, y
2), this coordinates matrix can be contained
m jKarbitrary element (x, y), wherein
X=N
2x
1+ x
2, y=L
2y
1+ y
2, and
0≤x≤J-1，0≤y≤K-1，0≤x
1≤N
1-1，0≤y
1≤L
1-1，0≤x
2≤N
2-1，0≤y
2≤L
2-1。
With this coordinates matrix
m jKthe coordinate (J-1, K-1) of last cell is the (x of example, its correspondence
1, y
1)=(N
1-1, L
1-1), (x
2, y
2)=(N
2-1, L
2-1), and now N
2x
1+ x
2=N
2(N
1-1)+N
2-1=N
1n
2-1=J-1, and L
2y
1+ y
2=L
2(L
1-1)+L
2-1=L
1l
2-1=K-1.
Again when J, K all much larger than 1, the average detecting number of times summation of aforementioned this three stage scanning will far fewer than with the average detecting number of times of the resolution scan of J × K, and its proof is as follows:
With the average detecting number of times=(1+2+3+ of J × K resolution scan ... + JK)/JK=(1+JK)/2=(1+N
1l
1n
2l
2)/2; And with the average detecting number of times summation=1+N of this three stage scanning
1l
1/ 2+N
2l
2/ 2=(2+N
1l
1+ N
2l
2)/2.When J, K all much larger than 1 time, (2+N
1l
1+ N
2l
2)/2 are much smaller than (1+N
1l
1n
2l
2)/2.With N
1=4, L
1=5, N
2=5, L
2=3 is example, (2+N
1l
1+ N
2l
2)/2=37/2 is much smaller than (1+N
1l
1n
2l
2)/2=301/2.
Known to ab=k, a > 0, b > 0, k is constant again, as a=b, a+b has minimum value, therefore preferred embodiment of the present invention is for making (N
1× L
1) try one's best and (N
2× L
2) equal, to optimize its on average detecting number of times summation.
According to aforesaid principle, the present invention is applicable to multi-point touch application.Touch for 2, two touch coordinate are respectively simultaneously: (x (1), y (1))=(N
2x
1(1)+x
2(1), L
2y
1(1)+y
2), and (x (2), y (2))=(N (1)
2x
1(2)+x
2(2), L
2y
1(2)+y
2(2)).
In addition, the distribution of the equivalent resolution of sensor also can be defined as uneven distribution by the present invention, such as: to be defined as by the block of being specified by the stage two in the stage three and to have N
2× L
2equivalent resolution, other is not then had N by the block that the stage two specifies
1× L
1the equivalent resolution of-1 or 1 × 1, even will not scan or close its power supply.Moreover, number of stages of the present invention can because of in requisition for and adjusted, such as, can increase number of stages when being applied in large touch display module, when being applied in small size touch control display module, can number of stages be reduced.
The present invention has open-ended excellent specific property again, the touch-control application making it be specially adapted to oversize, and its reason illustrates with following example:
If the resolution of touch control display module is 2J × 2K, and the present invention's construction scan module of one J × K, then only need increase by one can the scan line combination circuit of subarea-scanning, (its respective coordinates is (0 this 2J × 2K touch surface can be divided into upper left, 0)), (its respective coordinates is (0 to upper right, K)), (its respective coordinates is (J in lower-left, 0)), bottom right (its respective coordinates is (J, K)) totally 4 sub-touch surface of J × K.Now whole scanning work can be divided into generation { (0,0), (0, K), (J, 0), (J, K) } the first stage of coordinate space, produce (0,0) ... (J-1, K-1) } the subordinate phase of coordinate space, and the coordinate first stage to be produced adds the coordinate that subordinate phase produces, to obtain the touch-control coordinate of this 2J × 2K touch surface, (its coordinate space is for { (0,0), (2J-1,2K-1) }) coordinate add up the stage.To touch the last cell of this 2J × 2K touch surface, the coordinate that its first stage produces is (J, K), the coordinate that subordinate phase produces is (J-1, K-1), (J, K)+(J-1, K-1)=(2J-1,2K-1) equals the coordinate of this 2J × 2K touch surface last cell really.
According to aforesaid explanation, the present invention proposes a preferred embodiment, and its circuit block diagram is illustrated in Fig. 3.As shown in Figure 3, this preferred embodiment comprises a touch coordinate determining means 300, scan line connecting circuit 310, sensor 320 and a touching scanning element 330.
This touch coordinate determining means 300 has a plurality of working stage, and it is: via sweep trace connection control signal S
cONcontrol this sweep trace connecting circuit 310, to define the equivalent resolution distribution of each described working stage; Via resolution planning signal S
pRGMdetermine the coordinate space of this touching scanning element 330 at each described working stage; Via the first coordinate signal S
cOOR1read the interim touch coordinate that this touching scanning element 330 produces at each described working stage; And combine each described interim touch coordinate with via the second coordinate signal S
cOOR2send a touch coordinate.
This sweep trace connecting circuit 310 is in order at described sweep trace connection control signal S
cONcontrol under, formed X
2sweep trace and X
1sweep trace, and Y
2sweep trace and Y
1plural number kind interconnection configuration between sweep trace distributes at the equivalent resolution of each described working stage to define this sensor 320,1 (1 × 1) as the aforementioned, 1 (N
1× L
1) and N
1l
1individual (N
2× L
2) scanning space etc.In addition, the distribution of the equivalent resolution of this sensor 320 also can be defined as uneven distribution by the present invention, such as: to be defined as by the block of being specified by the stage two in the stage three and to have N
2× L
2equivalent resolution, other is not then had N by the block that the stage two specifies
1× L
1the equivalent resolution of-1 or 1 × 1, even will not scan or close its power supply.
This sensor 320 is a burst of column touch sensings, and it can be the touch sensing of the types such as resistance-type, condenser type, sound wave type or electromagnetic type.This sensor 320 is preferably (but being not limited to) via described Y
2sweep trace obtains a driving power and by X
2sweep trace sends an analog sensing signal.Sensing principle due to array touch sensing has belonged to known technology and the emphasis of non-invention, therefore does not intend repeating at this.
This touching scanning element 330 is in order to plan signal S according to described resolution
pRGMdetermine the coordinate space of each described working stage, with optionally from part Y
1sweep trace sends described driving power and from part X
1analog sensing signal described in sweep trace receives.Described analog sensing signal, after an analog-to-digital converter (not being shown in figure) changes into a digital signal, is namely used to detect each described interim touch coordinate.After detecting each described interim touch coordinate, this touching scanning element 330 is via the first described coordinate signal S
cOOR1send each described interim touch coordinate.In addition, this touching scanning element 330 can produce a frequency hopping effect-have different sweep frequencies in each stage because of scanning stage by stage, this frequency hopping effect, except reducing operation power consumption, reduce except Electromagnetic Interference, also can be avoided other fixed frequency of display module, thus avoid interference display frame.
In addition, the circuit of Fig. 3 only need be added scan line combination circuit and namely to be can be applicable to comparatively to expose thoroughly the sensor of size, and the circuit block diagram of one preferred embodiment please refer to Fig. 4.As shown in Figure 4, this preferred embodiment comprises a touch coordinate determining means 400, scan line connecting circuit 410, scan line combination circuit 420, sensor 430 and a touching scanning element 440.
This touch coordinate determining means 400 has scan line combination circuit operation stage and a subregion sweep phase, and wherein this subregion sweep phase has a plurality of working stages as described in Figure 3.This touch coordinate determining means 400 is: via scan line combination circuit control signal S
mUXcontrol this scan line combination circuit 420, to select one in this scan line combination circuit operation stage in a plurality of subregions of this sensor 430, wherein this touch coordinate determining means 400 is all preset with a subregion coordinate to each described subregion; Via sweep trace connection control signal S
cONcontrol this sweep trace connecting circuit 410, with at this subregion sweep phase, in the subregion described in, define this sensor 430 and distribute at the equivalent resolution of each described working stage; Via resolution planning signal S
pRGMdetermine the coordinate space of this touching scanning element 440 at each described working stage; Via the first coordinate signal S
cOOR1read the interim touch coordinate that this touching scanning element 440 produces at each described working stage; And subregion coordinate described in combination and each described interim touch coordinate are with via the second coordinate signal S
cOOR2send a touch coordinate.
This sweep trace connecting circuit 410 is in order at described sweep trace connection control signal S
cONcontrol under, formed X
2sweep trace and X
1sweep trace, and Y
2sweep trace and Y
1plural number kind interconnection configuration between sweep trace distributes at the equivalent resolution of each described working stage to define this sensor 430,1 (1 × 1) as the aforementioned, 1 (N
1× L
1), N
1l
1individual (N
2× L
2) scanning space etc.In addition, the distribution of the equivalent resolution of this sensor 420 also can be defined as uneven distribution by the present invention, such as: to be defined as by the block of being specified by the stage two in the stage three and to have N
2× L
2equivalent resolution, other is not then had N by the block that the stage two specifies
1× L
1the equivalent resolution of-1 or 1 × 1, even will not scan or close its power supply.
This scan line combination circuit 420 is according to described scan line combination circuit control signal S
mUXcontrol, make X
2sweep trace is connected to part X
3sweep trace, and Y
2sweep trace is connected to part Y
3sweep trace, to select the subregion described in from this sensor 430.
This sensor 430 is a burst of column touch sensings, and it can be the touch sensing of the types such as resistance-type, condenser type, sound wave type or electromagnetic type.This sensor 430 is preferably (but being not limited to) via described Y
3sweep trace obtains a driving power and by X
3sweep trace sends an analog sensing signal.Sensing principle due to array touch sensing has belonged to known technology and the emphasis of non-invention, therefore does not intend repeating at this.
This touching scanning element 440 is in order to plan signal S according to described resolution
pRGMdetermine the coordinate space of each described working stage, with optionally from part Y
1sweep trace sends described driving power and from part X
1analog sensing signal described in sweep trace receives.Described analog sensing signal, after an analog-to-digital converter (not being shown in figure) changes into a digital signal, is namely used to detect each described interim touch coordinate.After detecting each described interim touch coordinate, this touching scanning element 440 is via the first described coordinate signal S
cOOR1send each described interim touch coordinate.
Need ben, known high resolving power touch control display module is because making the IC of apparatus high quantity pin, and the signal quantity that its glass machine plate connects outside is also very huge, and the exploitation of its product unfavorable, production.But according to the design of Fig. 4 of the present invention, namely this scan line combination circuit 420 can the mode of COG (Chip on Glass-glass flip chip) realize or directly be integrated on glass machine plate (or soft board), and recycling one connects means (such as soft board) and is connected with primary control circuit; Another by this scan line combination circuit 420, also can simplify high resolution structures, thus reduce costs.Moreover designed on a sensor machine plate by this scan line combination circuit 420, the signal line quantity that this sensor machine plate can be made externally to connect significantly reduces, thus raising anti-noise ability and reduction processing procedure difficulty; And utilize the scanline groups syntype of this scan line combination circuit 420, also can support various sizes and resolution.
Via the announcement of earlier figures 1 to Fig. 3, the present invention proposes a multi-stage scanning touch position method for detecting further, and its step comprises: equivalent resolution distribution detecting one touch event with 1 × 1 (step a); With the first equivalent resolution distribution detecting first coordinate (step b); Be distributed in a regional area corresponding with this first coordinate with the second equivalent resolution and detect the second coordinate (step c); And combine this first coordinate and this second coordinate to produce a touch coordinate (steps d).Principle involved by its each step of the method for the present invention has been exposed in aforesaid explanation, therefore does not intend repeating at this.
Again, via the announcement of earlier figures 4, the present invention proposes a multi-stage scanning touch position method for detecting further, and its step comprises: with a touch event of equivalent resolution distribution detecting one sensor of 1 × 1 (step a); With a subregion of sensor described in the way selection of a subarea-scanning, wherein this subregion system corresponds to a subregion coordinate (step b); The first coordinate (step c) that described subregion detects described touch event is distributed in the first equivalent resolution; The regional area being distributed in the described subregion corresponding with this first coordinate with the second equivalent resolution detects second coordinate (steps d) of this touch event; And combine this subregion coordinate, this first coordinate and this second coordinate (step e).Principle involved by its each step of the method for the present invention has been exposed in aforesaid explanation, therefore does not intend repeating at this.
Elaborated from aforesaid, multi-stage scanning touch position of the present invention detecting mechanism distributes except the equivalent resolution of a changeable touch area, also can close not touching region, only carry out touch-control scanning for touching region, simulate to digital conversion and coordinate calculating, therefore touch-control scan efficiency, reduction operation power consumption can be promoted.In addition, be electrically connected via the connection means of such as flexible printed wiring board and core control circuit again because scan line combination circuit of the present invention can be embodied directly in sensor, therefore the present invention is specially adapted to large scale, high precision touch control display module.Moreover, the setting of equivalent resolution distribution can make capacitive sensor produce Capacitance parallel connection effect, and the collocation of this effect is closed or reduces non-touch area sweep frequency and change sweep frequency-that is frequency hopping under different equivalent resolution, the noise of fixed frequency can be avoided, thus reduce misoperation number of times.
In sum, multi-stage scanning touch position arrangement for detecting of the present invention and method can efficiently detecting touch position, reduction operate power consumption, reduce the pin count of control IC, reduce Electromagnetic Interference and the interference of minimizing to display frame, and its device has expandability, be applicable to the application of large-sized touch control display module.Compared to known touch detection means, effect that tool of the present invention is breakthrough.
Described in the invention is only preferred embodiment, such as the change of local or modification and come from technological thought of the present invention and be easy to the person of knowing by inference by those skilled in the art, does not all take off claim categories of the present invention.
Claims (15)
1. a multi-stage scanning touch position arrangement for detecting, it has:
Scan line connecting circuit, in order to scan the interconnection configuration between line-group according to scan line connection control signal control one first scanning line-group and one second, to plan the equivalent resolution distribution of a sensor, the second wherein said scanning line-group and this sensor couple;
One touching scanning element, in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal; And
One touch coordinate determining means, has a plurality of working stage, in order to: determine the state of described sweep trace connection control signal and the state of described resolution planning signal according to described working stage; Interim touch coordinate described in reading via the first described coordinate signal; And add up the described interim touch coordinate detected at each described working stage.
2. multi-stage scanning touch position arrangement for detecting according to claim 1, wherein, described sensor is the array touch sensing of resistance-type, condenser type, sound wave type or electromagnetic type.
3. multi-stage scanning touch position arrangement for detecting according to claim 1, wherein, this equivalent resolution distribution is one to be uniformly distributed or a uneven distribution.
4. multi-stage scanning touch position arrangement for detecting according to claim 1, wherein, this touching scanning element comprises an analog-to-digital converter.
5. a multi-stage scanning touch position arrangement for detecting, it has:
Scan line combination circuit, in order to select the some of a three scan line group to be connected to one second scanning line-group according to scan line combination circuit control signal, to select a subregion from a sensor, wherein this three scan line group and this sensor couple;
Scan line connecting circuit, in order to scan the interconnection configuration between line-group according to scan line connection control signal control one first scanning line-group and described second, to plan the equivalent resolution distribution of this subregion;
One touching scanning element, in order to select a part of sweep trace to detect one-phase touch coordinate according to a resolution planning signal in the described first scanning line-group, and sends described interim touch coordinate by one first coordinate signal; And
One touch coordinate determining means, there is scan line combination circuit operation stage and a subregion sweep phase, wherein this subregion sweep phase has a plurality of working stage, this touch coordinate determining means in order to: this scan line combination circuit operation stage determine described scan line combination circuit control signal state and produce a subregion coordinate; The state of described sweep trace connection control signal and the state of described resolution planning signal is determined according to described working stage at this subregion sweep phase, and the interim touch coordinate described in reading from the first described coordinate signal; And the described interim touch coordinate adding up this subregion coordinate and detect at each described working stage.
6. multi-stage scanning touch position arrangement for detecting according to claim 5, wherein, described sensor is the array touch sensing of resistance-type, condenser type, sound wave type or electromagnetic type.
7. multi-stage scanning touch position arrangement for detecting according to claim 5, wherein, this equivalent resolution distribution is one to be uniformly distributed or a uneven distribution.
8. multi-stage scanning touch position arrangement for detecting according to claim 5, wherein, this touching scanning element comprises an analog-to-digital converter.
9. multi-stage scanning touch position arrangement for detecting according to claim 5, wherein, this scan line combination circuit is integrated in this sensor in the mode of glass flip chip.
10. a multi-stage scanning touch position method for detecting, its step comprises:
With the first coordinate of a touch event of the first equivalent resolution distribution detecting one sensor;
The regional area being distributed in the described sensor corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event; And
Add up this first coordinate and this second coordinate.
11. touch position method for detecting according to claim 10, wherein, comprise with the step of the described sensor of equivalent resolution distribution detecting of 1 × 1.
12. 1 kinds of multi-stage scanning touch position method for detecting, its step comprises:
Select a subregion in the mode of a subarea-scanning from a sensor, wherein said subregion corresponds to a subregion coordinate;
With the first coordinate of the described subregion one touch event of the first equivalent resolution distribution detecting;
The regional area being distributed in the described subregion corresponding with this first coordinate with the second equivalent resolution detects the second coordinate of this touch event; And
Add up this subregion coordinate, this first coordinate and this second coordinate.
13. touch position method for detecting according to claim 12, wherein, comprise with the step of the described sensor of equivalent resolution distribution detecting of 1 × 1.
14. touch position method for detecting according to claim 12, wherein, this first equivalent resolution is distributed as one and is uniformly distributed or a uneven distribution.
15. touch position method for detecting according to claim 12, wherein, this second equivalent resolution is distributed as one and is uniformly distributed or a uneven distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010621659.0A CN102541337B (en) | 2010-12-28 | 2010-12-28 | Device and method for detecting multi-stage scanning touch position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010621659.0A CN102541337B (en) | 2010-12-28 | 2010-12-28 | Device and method for detecting multi-stage scanning touch position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102541337A CN102541337A (en) | 2012-07-04 |
| CN102541337B true CN102541337B (en) | 2015-01-07 |
Family
ID=46348370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010621659.0A Active CN102541337B (en) | 2010-12-28 | 2010-12-28 | Device and method for detecting multi-stage scanning touch position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102541337B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470557A (en) * | 2007-12-27 | 2009-07-01 | 统宝光电股份有限公司 | Position sensing panel, detection method and display |
| CN101615088A (en) * | 2008-06-23 | 2009-12-30 | 瑞鼎科技股份有限公司 | Induction installation and comprise the display system of induction installation |
| WO2010015750A1 (en) * | 2008-08-05 | 2010-02-11 | Stantum | Method for the acquisition and analysis of a multi-contact tactile sensor using a dichotomous principle, and electronic circuit and multi-contact tactile sensor implementing one such method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4564904B2 (en) * | 2005-08-29 | 2010-10-20 | パイオニア株式会社 | Coordinate position detection apparatus, control method therefor, and control program |
| US7812827B2 (en) * | 2007-01-03 | 2010-10-12 | Apple Inc. | Simultaneous sensing arrangement |
| TWI368159B (en) * | 2008-01-21 | 2012-07-11 | Egalax Empia Technology Inc | Sensing device for capacitive touch panel and method thereof |
| TW200949657A (en) * | 2008-05-19 | 2009-12-01 | Portek Semiconductor Inc | A multiple touch-points resistive touch-control panel and its method for determining a single touch-point and multiple touch-points |
-
2010
- 2010-12-28 CN CN201010621659.0A patent/CN102541337B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470557A (en) * | 2007-12-27 | 2009-07-01 | 统宝光电股份有限公司 | Position sensing panel, detection method and display |
| CN101615088A (en) * | 2008-06-23 | 2009-12-30 | 瑞鼎科技股份有限公司 | Induction installation and comprise the display system of induction installation |
| WO2010015750A1 (en) * | 2008-08-05 | 2010-02-11 | Stantum | Method for the acquisition and analysis of a multi-contact tactile sensor using a dichotomous principle, and electronic circuit and multi-contact tactile sensor implementing one such method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102541337A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8587557B2 (en) | Touch position detection apparatus and method using multistage scan | |
| US9529485B2 (en) | Trace pattern for touch-sensing application | |
| US8258986B2 (en) | Capacitive-matrix keyboard with multiple touch detection | |
| CN104769537B (en) | For using the interface and synchronous method between the touch controller and display driver that touch integrated display operation | |
| US10429998B2 (en) | Generating a baseline compensation signal based on a capacitive circuit | |
| CN102929422B (en) | Force sensing capacitive hybrid touch sensor | |
| US8976121B2 (en) | Capacitive touch system and control method for a capacitive touch system | |
| CN103809824B (en) | Touch sensing system and method of controlling power consumption thereof | |
| EP2513763A2 (en) | Transcapacitive sensor devices with ohmic seams | |
| US20110242015A1 (en) | Touch input device | |
| KR102335789B1 (en) | Touch screen having MUX and sensor switch | |
| US20120262409A1 (en) | Touch sensing unit having touch sensing pattern with hollow areas, and related touch sensing element and device using the same | |
| US20210157434A1 (en) | Device and method for proximity sensing on an input device | |
| US20120249457A1 (en) | Ungrounded touch-sensing input device and control device thereof | |
| US20130033441A1 (en) | Touch input device for switching driving signals | |
| US20110025644A1 (en) | Touch Control Apparatus, Associated Sensing Control Apparatus and Method Thereof | |
| US8890834B2 (en) | Scanning method of a touch panel | |
| KR102335790B1 (en) | Touch screen having MUX and sensor switch | |
| CN103809821A (en) | Input device with capacitor induction and electromagnetic induction and signal detecting switching method | |
| CN104185832A (en) | Touchscreen system | |
| CN102541337B (en) | Device and method for detecting multi-stage scanning touch position | |
| US20130249856A1 (en) | Touch device and touch sensing method thereof | |
| US9552096B2 (en) | Display device and manufacturing method thereof | |
| CN102236450B (en) | Method for scanning touch panel | |
| CN103092451A (en) | Touch screen scanning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: Floor 3 and 4, Building 2, Huafeng Industrial Park, Gushio Nanchang Second Industrial Zone, Xixiang Street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Yitai photoelectric Co.,Ltd. Address before: Taiwan, Taipei, China Patentee before: Du Yanhong |