CN105739733B - Contact information acquisition method and touch module - Google Patents
Contact information acquisition method and touch module Download PDFInfo
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- CN105739733B CN105739733B CN201410767137.XA CN201410767137A CN105739733B CN 105739733 B CN105739733 B CN 105739733B CN 201410767137 A CN201410767137 A CN 201410767137A CN 105739733 B CN105739733 B CN 105739733B
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- 238000013139 quantization Methods 0.000 claims description 37
- 238000011002 quantification Methods 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 22
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- 230000004075 alteration Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
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Abstract
A contact information acquisition method and a touch module are disclosed. First, a plurality of first sensing quantities of a plurality of sensing points of a touch panel are obtained, wherein the plurality of first sensing quantities correspond to a first resolution. Then, the first sensing quantities are quantized to obtain second sensing quantities, wherein the second sensing quantities correspond to a second resolution, and the second resolution is lower than the first resolution. And finally, judging the contact information according to the plurality of second induction quantities.
Description
Technical field
The present invention is especially about a kind of contact information acquisition method and touch-control module in touch panel to sense
The contact information acquisition method and its touch-control module for judging to contact information should be measured using different resolution.
Background technique
Touch panel is widely used in various electronic products at present or even touch panel more can be hardened with display surface
It closes, and becomes Touch Screen.Current touch panel arranges in pairs or groups specific algorithm most likely to differentiate the object of contact touch panel
Quantity.For example, by peak value search method, traditional object resolving method can be corresponding to multiple induction points from touch panel
Multiple induction amounts in find out one or more peak values, and pass through this one or more peak value number of peaks and neighbouring two peaks
Valley between value judges number of items.
However, traditional object resolving method simultaneously can not be differentiated effectively under various regimes when multiple objects are got too close to
Number of items and object profile, and multiple objects are mistakenly considered as an object；Alternatively, when an object is on touch panel
Contact profile be in long and narrow when, traditional object resolving method be easy an object is mistakenly considered as multiple objects.In this way, with
The touch panel of this traditional object resolving method in use, the case where may being easy input error, and is made as input equipment
The situation of maloperation occurs at user.
Summary of the invention
The embodiment of the present invention provides a kind of contact information acquisition method in touch panel, and step is described as follows.
Firstly, obtaining multiple first induction amounts of multiple induction points of touch panel, multiple first induction amounts correspond to first resolution.It connects
, quantification treatment is carried out to multiple first induction amounts and obtains multiple second induction amounts, multiple second induction amounts corresponding second are differentiated
Rate, second resolution are lower than first resolution.Later, judge to contact information according to multiple second induction amounts.
The embodiment of the present invention provides a kind of touch-control module, this touch-control module includes touch panel and sensing circuit.Touch surface
Plate has a plurality of first axle line of induction and a plurality of second axis line of induction, and staggeredly composition is more for this first and second a plurality of axis line of induction
A induction point.Sensing circuit is electrically connected first and second a plurality of axis line of induction of touch panel, to drive a plurality of first axle
The line of induction, and change from the capacitive sensing that a plurality of second axis line of induction receives corresponding each induction point.Sensing circuit includes that processing is single
Member, processing unit obtains multiple first induction amounts of multiple induction points of corresponding first resolution, with second resolution to multiple
First induction amount carries out quantification treatment, to obtain multiple second induction amounts of corresponding multiple induction points, and according to multiple second senses
It should measure to judge to contact information, wherein second resolution is lower than first resolution.
In conclusion contact information acquisition method and touch-control module system provided by the embodiment of the present invention are to be lower than first point
The second resolution of resolution quantifies multiple first induction amounts, to obtain multiple second induction amounts, wherein this multiple
Two induction amounts are equivalent upper with contour distribution character.By contour distribution character, the contact information acquisition method and touch-control mould
Block can effectively differentiate object, and obtain accurate number of items.
For the enabled feature and technology contents for being further understood that the present invention, please refer to below in connection with it is of the invention specifically
Bright and attached drawing, but these explanations are only rather than to appoint to interest field of the invention for illustrating the present invention with institute's accompanying drawings
What limitation.
Detailed description of the invention
Fig. 1 is the number of generated multiple first induction amounts after the touch panel of the embodiment of the present invention is touched by two objects
It is worth schematic diagram.
Fig. 2A is the flow chart of the contact information acquisition method of the embodiment of the present invention.
Fig. 2 B is the object for judging to contact touch panel in contact information acquisition method provided by the embodiment of the present invention
The flow diagram of quantity.
Fig. 2 C is to judge to contact touch panel in contact information acquisition method provided by another embodiment of the present invention
The flow diagram of number of items.
Fig. 3 is the functional block diagram of the touch-control module of the embodiment of the present invention.
Fig. 4 A is generated multiple first inductions after the touch panel of another embodiment of the present invention is touched by two objects
The numerical value schematic diagram of amount.
Fig. 4 B is the contour map of multiple third induction amounts of Fig. 4 D.
Fig. 4 C is multiple second senses generated after being quantified to multiple first induction amounts of Fig. 4 A using second resolution
The numerical value schematic diagram that should be measured.
Fig. 4 D is the multiple third senses generated after being quantified to multiple first induction amounts of Fig. 4 A using third resolution ratio
The numerical value schematic diagram that should be measured.
Fig. 5 A is generated multiple first inductions after the touch panel of another embodiment of the present invention is touched by two objects
The numerical value schematic diagram of amount.
Fig. 5 B is the contour map of multiple first induction amounts of Fig. 5 A.
Fig. 5 C is multiple second senses generated after being quantified to multiple first induction amounts of Fig. 5 A using second resolution
The numerical value schematic diagram that should be measured.And
Fig. 5 D is the multiple third senses generated after being quantified to multiple first induction amounts of Fig. 5 A using third resolution ratio
The numerical value schematic diagram that should be measured.
Specific embodiment
Various exemplary embodiments will be more fully described referring to alterations below, shown in alterations
Exemplary embodiments.However, concept of the present invention may embody in many different forms, and it should not be construed as limited by institute herein
The exemplary embodiments of elaboration.Specifically, providing these exemplary embodiments makes the present invention that will be detailed and complete, and will
The scope of concept of the present invention is sufficiently conveyed to those who familiarize themselves with the technology.In all schemas, can be lavished praise on oneself in order to clear the area Ceng Ji it
Size and relative size.Similar number indicates similar assembly always.
The embodiment of the present invention provides a kind of contact information acquisition method, is used in touch panel.With mutual capacitance type touch surface
For plate (but the present invention be not intended to limit touch panel type), the contact information acquisition method is scanned by mutual capacitance type and is obtained
Multiple capacitive sensing variations corresponding to multiple induction points of touch panel, and with multiple capacitor corresponding to multiple induction points
Induction variation is used as multiple first induction amounts, and plurality of first induction amount corresponds to first resolution, and first resolution pair
Answer the quantization unit of analog-digital converter.Then, the contact information acquisition method is according to second resolution to multiple first
Induction amount carries out quantification treatment and obtains multiple second induction amounts, and wherein second resolution is lower than first resolution.Later, described to connect
Touching information acquisition method judges to contact according to multiple second induction amounts information (for example, the profile of number of items, object, center of gravity
Position and type).
Briefly, the contact information acquisition method is to quantify multiple first induction amounts, to obtain resolution ratio
Lower multiple second induction amounts help avoid for single object being mistaken for multiple objects, and raising judges number of items, object
The accuracy possibility of type, object profile or position of centre of gravity.
The embodiment of the present invention also provides a kind of touch-control module, and wherein touch-control module has touch panel and sensing circuit,
Middle sensing circuit is electrically connected touch panel.Sensing circuit has processing unit, for executing above-mentioned touching information acquisition method.With
Under the contact information approach and touch-control module of the embodiment of the present invention will be further illustrated.
The schematic diagram of Fig. 1 shows a touch panel by generated multiple first induction amounts after two objects touchings.Citing
For, a touch panel is scanned multiple capacitive sensings corresponding to the multiple induction points for obtaining touch panel by mutual capacitance type and become
Change, this multiple capacitive sensing variation generates as shown in Figure 1 more after an analog-digital converter carries out Analog-digital Converter
A first induction amount, this multiple first induction amount correspond to first resolution.
The number of items discrimination method commonly used is first to find out peak value, the search side of peak value from induction result as shown in Figure 1
Method can be such as nine grids peak value search method, cross or X word peak value search method, if the first induction amount of a position is greater than it
First induction amount of position is then considered as peak value by the first induction amount of close position.In Fig. 1, the induction point of position P1, the
One induction amount is 900, no less than its it is neighbouring on, lower section, left, right, lower left, lower right, upper left side and upper right side
Each induction point the first induction amount, therefore the first induction amount of position P1 is judged as peak value.In addition, in the induction point of position P2
The first induction amount be 1268, greater than its adjacent to upper and lower, left and right, lower-left, bottom right, upper left and upper right each induction point the
One induction amount, therefore the first induction amount of the induction point of position P2 can be judged as another peak value.
Find out after two peak values of position P1 and P2, traditional number of items resolving method be judge position P1 and P2 it
Between absolute difference between the induction amount of any induction point and the peak value of position P1 and P2 whether more than a particular threshold, this
A step is to judge the induction amount distribution between two induction points on position P1 and P2 with the presence or absence of there is apparent trough, to sentence
Whether disconnected position P1 corresponds to the same object with two induction points on P2.
However, select a fixed threshold value to apply may cause in all touch panels due to the difference on processing procedure
The erroneous judgement of trough, thus influence the accuracy of number of items judgement.
The present invention proposes a kind of method different from known techniques, according to the present invention an embodiment, is used below first point
The second resolution of resolution quantifies multiple first induction amounts, obtains multiple second induction amounts.Then, according to multiple second inductions
It measures to judge to contact information (for example, number of items, the type of object, the position of centre of gravity of object or profile etc.).
In various embodiments, multiple first induction amounts can also be quantified using third resolution ratio, and generated multiple
Third induction amount come judge contact information, wherein third resolution ratio be less than second resolution.It should also be noted that the embodiment of the present invention
It is not intended to limit the number of quantization, in other words, it is next to K resolution ratio that technical field tool usually intellectual can be used second
Quantify multiple first induction amounts, judges to contact information to generate multiple second to K induction amount, wherein K is more than or equal to 2, and
K resolution ratio is lower than K-1 resolution ratio.
Fig. 2A provides the flow chart of contact information acquisition method according to an embodiment of the invention, and Fig. 3 is of the invention real
Apply the functional block diagram of the touch-control module of example.The contact information acquisition method of Fig. 2A can be implemented in the touch-control module 3 of Fig. 3,
But the present invention is not intended to limit contact information acquisition method and is only capable of being implemented in the touch-control module 3 of Fig. 3.
As shown in figure 3, touch-control module 3 includes touch panel 31 and sensing circuit 32.Touch panel 31 has a plurality of first
Axis line of induction X1~X4 and a plurality of second axis line of induction Y1~Y4, and this plurality of first axle line of induction X1~X4 and a plurality of second axis
Line of induction Y1~Y4 staggeredly constitutes multiple induction points 311.The a plurality of first axle sense of the electric connection touch panel 31 of sensing circuit 32
Line X1~X4 and a plurality of second axis line of induction Y1~Y4 are answered, to drive a plurality of first axle line of induction X1~X4, and from a plurality of
Two axis line of induction Y1~Y4 receive the capacitive sensing variation of corresponding each induction point 311.Sensing circuit 32 includes that simulation numeral turns
Parallel operation 321 and processing unit 322, analog-digital converter 321 carry out simulation numeral to the capacitive sensing variation of each induction point and turn
It changes, to generate the first induction amount of corresponding each induction point 311.
In various embodiments, touch panel 31 can also be include that multiple independent induction electrodes are arranged in matrix,
Each induction electrode is connected to sensing circuit 32.
With reference next to each step of Fig. 3 explanatory diagram 2A.Firstly, in step s 201, processing unit 322 obtains touch-control
Multiple first induction amounts (such as shown in Fig. 1), plurality of first induction amount pair corresponding to multiple induction points 311 of panel 31
Answer first resolution.
Next, processing unit 322 carries out K quantification treatment to multiple first induction amounts, respectively in step S202
Multiple second induction amounts are obtained to multiple K+1 induction amounts, plurality of second to K+1 induction amount respectively corresponds second to
K+1 resolution ratio, in one embodiment, second to K+1 resolution ratio system from high to low.K can be any just whole more than or equal to 1
Number.
Finally, processing unit 322 is sentenced according to multiple second induction amounts to multiple K+1 induction amounts in step S203
Information is touched in disconnecting, wherein contact information may include contacting the number of items of the object of touch panel 31.
In one embodiment, the K value of step S202 be 1, this indicate processing unit 322 multiple first inductions can only be measured into
Quantification treatment of row obtains multiple second induction amounts of corresponding second resolution.Therefore, in step S203, processing unit
322 can judge to contact information according to multiple second induction amounts.
In another embodiment, the K value of step S202 is 2, this indicates that processing unit 322 will be obtained to step 301
Multiple first induction amounts carry out quantification treatment twice, obtain multiple second induction amounts and multiple third induction amounts, and plurality of the
Two induction amounts correspond to second resolution, and multiple third induction amounts correspond to third resolution ratio, and third resolution ratio is differentiated lower than second
Rate.
Please refer to Fig. 2A, Fig. 2 B and Fig. 2 C, step S203 can further be step S203 ' or S203 ", to
The number of items of judgement contact touch panel.
In the step S203 ' of Fig. 2 B, processing unit 322 can be according to the object judged from second to K+1 induction amount
Number of packages amount the maximum determines the number of items of contact touch panel 31.For example, according to multiple second under second resolution
Induction amount judges that contact subject quantity is 1, judges contactant number of packages according to multiple third induction amounts under third resolution ratio
Amount is 1, and is 2 according to multiple judged contact subject quantity of 4th induction amount of the 4th resolution ratio, greater than other two point
Judging result corresponding to resolution, then processing unit 322, as judging result, can be determined according to number of items the maximum is judged
The number of items for contacting touch panel 31 is 2.
In embodiment shown in fig. 2 C, the step S203 of Fig. 2A can further be step S203 ".In step
In S203 ", processing unit 322 is according to the number of items frequency of occurrence judged in the second to the K+1 induction amount got
Most persons, to determine the number of items of contact touch panel 31.For example, if K be 4, according to the second of different resolution to
When the number of items that 5th induction amount is judged is respectively 1,2,2 and 2, then processing unit 322 can be according to the object judged
The most persons of quantity frequency of occurrence make as a result, for example above, and the frequency of occurrence that number of items is 2 is most, therefore processing unit
322 can determine that the number of items of contact touch panel 31 is 2.
As shown in the above, the embodiment of the present invention provide contact information acquisition method by multiple first induction amounts with compared with
Low resolution ratio is quantified, and judges to contact information using multiple induction amounts after quantization.Multiple induction amounts after quantization
The otherness between each position induction amount can be improved, help correctly to judge the number of items for contacting touch panel and
Profile, position of centre of gravity and the type of object.
Then, following several examples are reused to illustrate how to judge according to the present invention to contact information.A referring to figure 4., figure
4A is that the numerical value of generated multiple first induction amounts after the touch panel of another embodiment of the present invention is touched by two objects shows
It is intended to.
Fig. 4 C is multiple second senses generated after being quantified to multiple first induction amounts of Fig. 4 A using second resolution
The numerical value schematic diagram that should be measured.In this embodiment, the quantization unit of second resolution is 300, and quantification manner is by multiple the
After one induction amount is divided by quantization unit, and after first after the decimal point of the multiple quotients generated accordingly is rounded up, multiplied by
Quantization unit, to obtain multiple second induction amounts.For example, the first induction amount of position P1 is 1288 in Fig. 4 A, by 1288
Obtaining quotient divided by quantization unit 300 is about 4.2,4 is obtained after number after 4.2 decimal point is rounded up, multiplied by amount
Change unit 300, that is, obtains the second induction amount 1200 of Fig. 4 location of C P1.In Fig. 4 A the first induction amount of other positions be also via
Above-mentioned operation obtains result shown in Fig. 4 C.It in other embodiments, can also be the later number of decimal point that will obtain quotient
Word unconditionally casts out or unconditional carry.
After quantization step, an embodiment system judges to contact information by peak value is searched according to the present invention.Search peak
Nine grids peak value search method can be used to realize in value, and nine grids peak value search method is adjacent with it by the second induction amount of each induction point
Second induction of multiple induction points of the close top, lower section, left, right, upper left side, lower left, upper right side and lower right
Amount compares, if the second induction amount of the induction point no less than the second induction amount of its neighbouring multiple induction point, and not
It is 0, then judges the second induction amount of the induction point for the peak value.By taking Fig. 4 C as an example, the second induction amount of position P2 is 1500,
Not less than the second induction amount of other neighbouring induction points, therefore the second induction amount 1500 of position P2 is judged as peak value.Scheming
In 4C, the second induction amount of the induction point of position P1 is 1200, and lower section, right and the bottom right neighbouring with the induction point of position P1
Second induction amount of the induction point of side is also 1200, can again also be 1200 sense from these the second induction amounts in this case
Ying Dian, continuation is searched with nine grids search method, if the induction amount for not finding adjacent induction point again is equal to or more than
1200, these the second induction amounts are the combination of 1200 induction point, will be considered as a corresponding object.If searched above-mentioned
The second induction amount that adjacent induction point is found during target-seeking is greater than 1200, such as the second induction amount of position P2 is 1500, that
It would not be that the combination of 1200 induction point is considered as a corresponding object the second induction amount before.Due to the of position P2
Two induction amounts are 1500, not less than the second induction amount of other neighbouring induction points, therefore 1500 quilt of the second induction amount of position P2
It is judged as peak value, in multiple second induction amounts of the second resolution shown in Fig. 4 C, only finds out 1 peak value, therefore judgement connects
Touching number of items is 1.
Fig. 4 D is the multiple third senses generated after being quantified to multiple first induction amounts of Fig. 4 A using third resolution ratio
The numerical value schematic diagram that should be measured.In this embodiment, the quantization unit of third resolution ratio is 500, and quantification manner is by multiple the
It is more to obtain multiplied by quantization unit after one induction amount is divided by quantization unit, and after the multiple quotients generated accordingly are rounded up
A third induction amount.
In Fig. 4 D, by above-mentioned in such a way that Fig. 4 C searches peak value, two peak values 1500 can be found out and be located at position
Therefore P1 and P2 judges contact subject quantity for 2.Also that is, object distinguishes induction point and the position of contact position P1 there are two being considered as
Set the induction point of P2.
Number of items according to Fig. 4 D and Fig. 4 C judgement is different.According to the method for earlier figures 2B, it can be determined that number of items
It is 2.In other embodiments, the quantization step of several different resolutions can also be made, and according to method shown in fig. 2 C more
To judge number of items.
The induction amount of Fig. 4 D is distributed, and can be illustrated as three contour region R1~R3 of Fig. 4 B.Contour region R1 includes
Multiple induction points that third induction amount is 0~499, contour region R2 include its third induction amount be 500~999 it is multiple
Induction point, contour region R3 include multiple induction points that third induction amount is 1000~1500.By the shape of these contour maps
Shape can roughly find out the profile of contact subject, and, it helps understand and is judged out according to Fig. 4 D there are two contactant
Part.
If it is the number of items for determining this induction picture frame according to Fig. 4 D, the induction amount distribution of Fig. 4 D can also be used further
To judge the profile of contact subject.In one embodiment, the position of multiple the first non-zero induction amounts according to shown in Fig. 4 A,
Fig. 4 D carries out a boundary judgment step and judges to wrap using aforementioned each induction point with the first non-zero induction amount as center induction point
It includes in nine induction points (being equivalent to nine grids above-mentioned) of the 3*3 matrix of this induction point, if at least there are three continuous adjacents
Position there is the induction amount for being less than or equal to quantization unit (such as the quantization unit of Fig. 4 D be 500).If so, i.e. by this center
Induction point is labeled as boundary.To multiple all induction points with non-zero induction amount shown in Fig. 4 A carry out the above judgment method it
Afterwards, according to all induction points for being marked as boundary, it can be obtained the profile of contact subject.Certainly, in different embodiments, also
The profile of contact subject directly may be directly judged according to the induction amount (such as Fig. 4 D) after quantization without reference to the first induction amount；
Furthermore it is not limited in nine induction points of 3*3 matrix only with the position of at least three continuous adjacents as judging boundary yet
Foundation, can according to demand change number as judgment basis.
It in fig. 4d, include 2 contact subject, and induction amount is continuously to be distributed.It is obtained according to the above method
Boundary still include 2 contact subject.An embodiment according to the present invention is to compare between an induction point and two peak positions
Distance, to judge which object the induction point belongs to.By taking Fig. 4 D as an example, calculate all induction points in above-mentioned profile with from peak
It is worth the distance between position P1 and P2.If an induction point is closer from peak position P1, the induction point and the peak position are judged
P1 corresponds to the same contact subject.If an induction point is closer from peak position P2, the induction point and peak position P2 are judged
The corresponding same contact subject.If an induction point and two peak position P1 are identical as the distance between P2, the induction point is judged
The contact subject of corresponding peak position P1, also corresponds to peak value P2 contact subject.Fig. 4 D two can be distinguished according to above method
The profile and range of contact subject.
According to the profile of contact subject, the corresponding sensing area of each contact subject can be further calculated.According to contactant
The sensing area of part, it can be determined that the type of this contact subject, such as when sensing area is less than first default value, contactant
Part may be stylus, and when sensing area is greater than a default value, contact subject may be palm.It, can in actual application
To be compared according to the shape of contact subject profile with sensing area with a preset condition, to judge object type, such as ear
Piece, cheek.
According to the profile of contact subject, the position of centre of gravity of each contact subject can be also further calculated.Judging object
After range, operation is carried out according to the first induction amount of induction point each in the range and position, the contact subject can be obtained
Position of centre of gravity.Wherein, if an induction point corresponds to multiple objects simultaneously, the induction amount of the induction point can be divided equally to carry out
The position operation of each object.Operation method about contact position is known to art technology personage, and details are not described herein.
It should also be noted that the quantization unit of above-described embodiment is not intended to limit the invention, in an embodiment of the present invention,
The half or multiple first induction amounts that the maximum that quantization unit is no more than the analog-digital converter of touch panel produces value are most
The half being worth greatly.In addition, above-mentioned quantification manner is also non-to limit the present invention.In other embodiments, quantification manner can also
Be by multiple first induction amounts divided by quantization unit after, and by the unconditional carry of multiple quotients generated accordingly or unconditionally cast out
Afterwards, multiplied by quantization unit, to obtain multiple second induction amounts.In another embodiment, quantification manner can also will be multiple
The part least significant bit (Least Significant Bits, LSB) of first induction amount is set as 0, to obtain multiple second
Induction amount.
If after N induction picture frame, contact the contact information of touch panel 31 not if unusual fluctuation (for example,
Still touch panel 31 is contacted for two fingers), then the induction picture frame after N+1 opens can be from second resolution above-mentioned to K+
Only wherein Q kind resolution ratio does quantification treatment for selection in 1 resolution ratio, to obtain the induction of multiple correspondences Q kind resolution ratio respectively
Amount, wherein Q is less than K+1, about the selection of this Q kind resolution ratio, can be calculating in N number of induction picture frame, according to this second
The number of items judged to K+1 resolution ratio and the number that is consistent of last judging result, and according to these numbers that are consistent
Height determines that subsequent induction picture frame only carries out the quantification treatment of which resolution ratio (the Q kind resolution ratio), effectively mentions whereby
Rise overall treatment efficiency.
For example, in preceding 10 inductions picture frame, judge that number of items is according to the quantized result of 5 kinds of resolution ratio
2, wherein judging that number of items is 1 according to second, third resolution ratio, object is judged according to the four, the 5th and the 6th resolution ratio
Quantity is 2.Due to secondary with the number of items of the judgement of the 6th resolution ratio and being consistent for last judging result according to the four, the 5th
Number is more.Therefore next processing unit 322 can only select these three resolution ratio to carry out quantification treatment to the first induction amount,
And judge to contact information.In other words, processing unit 322 can save the quantification treatment process for removing second Yu third resolution ratio
Time.
A referring to figure 5., Fig. 5 A are generated more after the touch panel of another embodiment of the present invention is touched by two objects
The numerical value schematic diagram of a first induction amount.In Fig. 5 A, pass through nine grids peak value search method, the induction point of position P1, P5 and P9
The first induction amount be all judged as peak value respectively.However, the actually object sense of also having touched position P2~P4 Yu P6~P8
Ying Dian.Induction amount distribution for this plagioclase shape, known techniques judge the frequent mistake of number of items.
It is please the contour map of multiple first induction amounts of Fig. 5 A referring next to Fig. 5 B, Fig. 5 B.From contour map, Ke Yi great
There are two the object possibility for generally finding out contact touch panel.
Please then referring concurrently to Fig. 5 A and Fig. 5 C, Fig. 5 C be to multiple first induction amounts of Fig. 5 A using second resolution into
The numerical value schematic diagram of the multiple second induction amounts generated after row quantization.In this embodiment, the quantization unit of second resolution is
300, and quantification manner be by multiple first induction amounts divided by quantization unit after, and the multiple quotients generated accordingly are rounded up
Afterwards, multiplied by quantization unit, to obtain multiple second induction amounts.
In Fig. 5 C, the second induction amount of the induction point of position P1, P10 is 1200, and the induction point of position P7~P9
Second induction amount is 1200.Therefore, the object on the induction point of position P1, P10 can be considered as to the same object, and by position
It sets the object on the induction point of P7~P9 and is considered as the same object.
Please then referring concurrently to Fig. 5 A and Fig. 5 D, Fig. 5 D be to multiple first induction amounts of Fig. 5 A using third resolution ratio into
The numerical value schematic diagram of the multiple third induction amounts generated after row quantization.In this embodiment, the quantization unit of third resolution ratio is
600, and quantification manner be by multiple first induction amounts divided by quantization unit after, and the multiple quotients generated accordingly are rounded up
Afterwards, multiplied by quantization unit, to obtain multiple third induction amounts.
In Fig. 5 D, the third induction amount of the induction point of position P1~P10 is all 1200.Therefore, it is possible to judge that position P1,
There is an object on the induction point of P10, and has an elongated object on the induction point of position P2~P9.In addition, if by P1, P10
Induction point on object and position P2~P9 induction point on object be combined into an object, and consider the wheel of two objects
The shape of exterior feature composition, the then it is known that object of contact touch panel may be a palm.It is possible thereby to learn, resolution ratio is got over
Much lower a induction amount can not only be used to judge number of items, and more can effectively judge profile, the center of gravity position of object
It sets and type.
Above-described embodiment illustrates the acquisitions of various contact information with the induction amount after quantifying, in other embodiments, when
The judgement of contact information can also be so carried out referring again to multiple first induction amounts of first resolution.
In summary, the embodiment of the present invention provides contact information acquisition method and touch-control module is felt multiple first
It should measure and be quantified with lower resolution ratio, and judge to contact information using multiple induction amounts after quantization.Wherein quantization is single
Position is bigger, that is, resolution ratio is lower.The difference between induction amount can be highlighted due to reducing resolution ratio, helps correctly to sentence
The number of items of the disconnected touch panel of contact out and profile, position of centre of gravity and the type of object.
The above, the only best specific embodiment of the present invention, only the feature of the present invention is not limited thereto, any ripe
This those skilled in the art is known in the field of the present invention, can think easily and changes or modifications, can all cover the patent in following this case
Range.
[symbol description]
P1~P10: position
R1~R3, R2a, R2b, R3a, R3b: region
S201~S203, S203 ', S203 ": steps flow chart
3: touch-control module
31: touch panel
311: induction point
32: sensing circuit
321: analog-digital converter
322: processing unit
X1~X4: the first axle line of induction
Y1~Y4: the second axis line of induction.
Claims (19)
1. a kind of contact information acquisition method, in a touch panel, which is characterized in that the contact information acquisition method packet
It includes:
Step A: obtaining multiple first induction amounts of multiple induction points of the touch panel, wherein multiple first induction amount is corresponding
One first resolution；
Step B: carrying out quantification treatment to multiple first induction amount and obtain multiple second induction amounts, wherein multiple second induction
A corresponding second resolution is measured, and the second resolution is lower than the first resolution, wherein the quantification treatment is by multiple the
One induction amount is divided by the quantization unit for corresponding to the second resolution, to obtain multiple quotients, and by multiple quotient without item
Part carry, after rounding up or unconditionally casting out, multiplied by the quantization unit, to obtain multiple second induction amount；And
Step C: a contact information is judged according to multiple second induction amount.
2. contact information acquisition method according to claim 1, wherein the contact information is contact subject quantity, contactant
Part type, the sensing area of contact subject, the profile of contact subject, one of with the position of centre of gravity of contact subject.
3. contact information acquisition method according to claim 1, wherein in step C, further according to multiple
First induction amount judges the contact information.
4. contact information acquisition method according to claim 1, wherein further including that other resolution ratio are come to multiple with I kind
First induction amount carries out quantification treatment and obtains multiple induction amounts for respectively corresponding other resolution ratio of the I kind, and in step C,
Judge to contact the touch panel according to multiple induction amount of multiple second induction amount and corresponding other resolution ratio of the I kind
The contact information, wherein the second resolution is higher than other resolution ratio of the I kind, and I is the positive integer more than or equal to 1.
5. contact information acquisition method according to claim 1, wherein certainly should in step C with a peak value search method
One or more peak values are found out in multiple second induction amounts, and judge to contact the touch surface by the peak value or multiple peak value
The number of items of plate.
6. contact information acquisition method according to claim 5, wherein the peak value search method is a nine grids peak value search
Method, the nine grids peak value search method by the second induction amount top adjacent thereto of the respectively induction point, lower section, left, right,
Upper left side, lower left, upper right side are compared with multiple second induction amount of multiple induction point of lower right, if the induction point
The second induction amount no less than its neighbouring multiple induction point multiple second induction amount, and not be 0, then judge the sense
The the second induction amount that should be put is the peak value.
7. contact information acquisition method according to claim 1, wherein in step C, further includes:
A. the induction point for multiple with the first non-zero induction amount carries out a boundary judgment step, the boundary judgment step
Including using respectively induction point with the first non-zero induction amount as a center induction point, to judge nine of a 3*3 matrix
At least whether there are three the second induction amounts of the induction point of continuous adjacent to be less than or equal to the second resolution in the induction point
Quantization unit, if so, will the matrix the center induction point be labeled as boundary；And
B. according to all induction points for being marked as the boundary, judge the profile of contact subject.
8. contact information acquisition method according to claim 1, wherein scanning and obtaining by mutual capacitance type in step A
Multiple capacitive sensings of multiple induction point of the touch panel change, and with the change of multiple capacitive sensing of multiple induction point
It is turned to multiple first induction amount.
9. contact information acquisition method according to claim 1, wherein the corresponding quantization unit of the second resolution does not surpass
The maximum for crossing an analog-digital converter of the touch panel produces the half of value.
10. contact information acquisition method according to claim 1, wherein the corresponding quantization unit of the second resolution does not surpass
Cross the half of the maximum value of multiple first induction amount.
11. contact information acquisition method according to claim 4, wherein in step C, according to multiple second induction
The number of items the maximum or the number of items judged in multiple induction amount of amount and corresponding other resolution ratio of the I kind goes out occurrence
The most persons of number, to determine to contact the number of items of the touch panel.
12. contact information acquisition method according to claim 4, wherein if the object judged by N number of induction picture frame
When number of packages amount is identical, then after the N+1 induction picture frame, Q only is selected from the second resolution and the I kind other resolution ratio
Kind resolution ratio obtains multiple induction amounts for respectively corresponding the Q kind resolution ratio to carry out quantification treatment to multiple first induction amount,
And the contact information is judged according to multiple induction amount of the corresponding Q kind resolution ratio, wherein Q is just whole more than or equal to 2
Number.
13. contact information acquisition method according to claim 12, wherein further include calculating in N number of induction picture frame,
The number of items judged according to the second resolution and the I kind other resolution ratio and last judging result are consistent time
Number, and being consistent number height and decide whether to differentiate as the Q kind according to the second resolution and the I kind other resolution ratio
Rate.
14. contact information acquisition method according to claim 2, wherein further include according to the profile and the area at least
One of them, judges the type of the contact subject.
15. a kind of touch-control module, which is characterized in that the touch-control module includes:
One touch panel has a plurality of first axle line of induction and a plurality of second axis line of induction, and a plurality of first, second axis induction
Line staggeredly constitutes multiple induction points；And
One sensing circuit is electrically connected those the first, second axis lines of induction of the touch panel, to drive those first axle senses
Line is answered, and receives the capacitive sensing variation of the corresponding respectively induction point from those the second axis lines of induction, wherein the sensing circuit includes
One processing unit, which obtains multiple first induction amounts of multiple induction point of a corresponding first resolution, with one
Second resolution carries out quantification treatment to multiple first induction amount, to obtain multiple second inductions of corresponding multiple induction point
Amount, and a contact information is judged according to multiple second induction amount,
Wherein, the quantification treatment be by multiple first induction amount divided by correspond to the second resolution a quantization unit, with
Obtain multiple quotients, and by the unconditional carry of multiple quotient, round up or unconditionally cast out after, multiplied by the quantization unit,
To obtain multiple second induction amount, and the second resolution is lower than the first resolution.
16. touch-control module according to claim 15, wherein the contact information is contact subject quantity, contact subject kind
Class, the sensing area of contact subject, the profile of contact subject, one of with the position of centre of gravity of contact subject.
17. touch-control module according to claim 15, wherein the processing unit is further according to multiple first induction
Amount is to judge the contact information.
18. a kind of contact information acquisition method, in a touch panel, which is characterized in that the contact information acquisition method packet
It includes:
Step A: obtaining multiple first induction amounts of multiple induction points of the touch panel, wherein multiple first induction amount is corresponding
One first resolution；
Step B: carrying out quantification treatment to multiple first induction amount and obtain multiple second induction amounts, wherein multiple second induction
A corresponding second resolution is measured, and the second resolution is lower than the first resolution, wherein the quantification treatment is by multiple the
The part least significant bit of one induction amount is set as 0, to obtain multiple second induction amount；And
Step C: a contact information is judged according to multiple second induction amount.
19. a kind of touch-control module, which is characterized in that the touch-control module includes:
One touch panel has a plurality of first axle line of induction and a plurality of second axis line of induction, and a plurality of first, second axis induction
Line staggeredly constitutes multiple induction points；And
One sensing circuit is electrically connected those the first, second axis lines of induction of the touch panel, to drive those first axle senses
Line is answered, and receives the capacitive sensing variation of the corresponding respectively induction point from those the second axis lines of induction, wherein the sensing circuit includes
One processing unit, which obtains multiple first induction amounts of multiple induction point of a corresponding first resolution, with one
Second resolution carries out quantification treatment to multiple first induction amount, to obtain multiple second inductions of corresponding multiple induction point
Amount, and a contact information is judged according to multiple second induction amount,
Wherein, which is that the part least significant bit of multiple first induction amount is set as 0, to obtain multiple the
Two induction amounts, and the second resolution is lower than the first resolution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103141636 | 2014-12-01 | ||
| TW103141636A TWI533177B (en) | 2014-12-01 | 2014-12-01 | Touch information acquiring method and touch control module |
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| CN201410767137.XA Active CN105739733B (en) | 2014-12-01 | 2014-12-12 | Contact information acquisition method and touch module |
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| CN112872640B (en) * | 2021-01-21 | 2023-10-03 | 日照中意华坤金属制造有限公司 | Iron art decorative frame welding manufacturing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882036A (en) * | 2009-05-07 | 2010-11-10 | 联阳半导体股份有限公司 | Positioning device of touch device and positioning method thereof |
| CN102707824A (en) * | 2011-03-28 | 2012-10-03 | 晨星软件研发(深圳)有限公司 | Multi-finger touch method and associated device |
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| US8542202B2 (en) * | 2009-12-31 | 2013-09-24 | Motorola Mobility Llc | Electronic device and method for determining a touch input applied to a capacitive touch panel system incorporated therein |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882036A (en) * | 2009-05-07 | 2010-11-10 | 联阳半导体股份有限公司 | Positioning device of touch device and positioning method thereof |
| CN102707824A (en) * | 2011-03-28 | 2012-10-03 | 晨星软件研发(深圳)有限公司 | Multi-finger touch method and associated device |
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| TW201621565A (en) | 2016-06-16 |
| TWI533177B (en) | 2016-05-11 |
| CN105739733A (en) | 2016-07-06 |
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