CN105843461A - Touch device with fingerprint identification function and coordinate operation method thereof - Google Patents
Touch device with fingerprint identification function and coordinate operation method thereof Download PDFInfo
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- CN105843461A CN105843461A CN201510864507.6A CN201510864507A CN105843461A CN 105843461 A CN105843461 A CN 105843461A CN 201510864507 A CN201510864507 A CN 201510864507A CN 105843461 A CN105843461 A CN 105843461A
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- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000011241 protective layer Substances 0.000 claims description 15
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
Abstract
The invention relates to a touch device with fingerprint identification and a coordinate operation method thereof, wherein the touch device comprises a touch body with a plurality of sensing units and a fingerprint identifier with a plurality of pixel electrodes, which jointly form a touch detection area; the coordinate operation method comprises the steps of respectively reading first and second capacitance induction quantities of the induction unit and the pixel electrode, dividing the pixel electrodes into a plurality of pixel induction groups, and calculating a third capacitance induction quantity by using the second capacitance induction quantities of the at least two pixel electrodes in each pixel induction group; and finally, calculating the coordinate of a touch object according to the first and third capacitance induction values. The invention compensates the capacitance induction quantity which is lacked by the touch control body caused by occupying a part of the touch control detection area by the capacitance induction quantity of the fingerprint identifier.
Description
Technical field
The present invention is the coordinate operation method about a kind of contactor control device, a kind of contactor control device having identification of fingerprint
Coordinate operation method.
Background technology
Part electronic installation can be provided with a fingerprint identifier 60 at present, prevents electronic installation stolen；With notes type electricity
For brain, fingerprint identifier 60 position can be arranged on keyboard main case 50, as shown in Figure 8 A, is arranged on keyboard main case 50
The right corner, the most also have be incorporated into touching device 61 on the downside of left and right button 611,612 in the middle of design, such as Fig. 8 B
Shown in.No matter that a kind of set-up mode, is both needed to change the design of keyboard host housing 50.
Therefore, as shown in Figure 8 C, existing manufacturer proposes a kind of integration the touching device 61 ' of a fingerprint identifier 60, as
This can change keyboard host housing 50 and design.For avoiding affecting on this touching device 61 ' identification its touching detection region A
Touching object, this fingerprint identifier 60 is mainly disposed to the corner location of this touching detection region A.But, this touching device 61 '
When carrying out the detecting touching object, when, in touching object touching to this fingerprint identifier 60, this touching device 61 ' cannot detection
And identify that it touches coordinate, cause broken string or erroneous judgement gesture；Therefore, arranging of this fingerprint identifier 60 can be to this touching device
61 ' impact in coordinate position computing and gesture differentiation, still have necessity of improvement further.
Summary of the invention
Because above-mentioned existing contactor control device directly sets up a fingerprint identifier thereon, it is impossible to detection is touched at this fingerprint
The technological deficiency of the touching object on identifier, the main inventive purpose of the present invention is to provide a kind of touch-control dress having identification of fingerprint
Put and coordinate operation method, to improve this technological deficiency.
The technical way that above-mentioned purpose to be reached is used is to make the contactor control device of this tool identification of fingerprint include one touch
Control body and a fingerprint identifier, this touch-control body and this fingerprint identifier collectively form a touch detection region, and this touch-control is originally
Body comprises multiple sensing unit, and this fingerprint identifier comprises multiple pixel electrode, and wherein this coordinate operation method includes:
A () reads multiple first capacitive sensing amounts of multiple sensing units of this touch-control body, and this identification of fingerprint respectively
Multiple second capacitive sensing amounts of multiple pixel electrodes of device；
(b) the plurality of pixel electrode is divided into multiple pixel sensing group, and obtain correspondence represent the plurality of pixel sensing group
Multiple 3rd capacitive sensing amounts, respectively this pixel sensing group include at least two pixel electrodes, respectively the 3rd electric capacity sense
Should measure and be the second capacitive sensing amount computing by these at least two pixel electrodes in this pixel sensing group and obtain；And
C () carries out the coordinate of touch-control object according to the plurality of first capacitive sensing amount and the plurality of 3rd capacitive sensing amount
Computing.
The technical way that above-mentioned purpose to be reached is used is that the contactor control device making this tool identification of fingerprint includes:
One touch-control body, comprises more than one sensing unit and a touch-induction circuit, and the electrical connection of this touch-induction circuit should
Multiple sensing units, and in have a coordinate operation program；And
One fingerprint identifier, comprises multiple pixel electrode and a reading circuit；This reading circuit is electrically connected to the plurality of finger
Stricture of vagina electrode and this touch-induction circuit, this touch-control body and this fingerprint identifier collectively form a touch detection region；
Above-mentioned touch-induction circuit performs this coordinate operation program, comprises the steps of
A () reads multiple first capacitive sensing amounts of multiple sensing units of this touch-control body, and this identification of fingerprint respectively
Multiple second capacitive sensing amounts of multiple pixel electrodes of device；
B the plurality of pixel electrode is divided into multiple pixel via this touch-induction circuit and senses group by (), and obtain corresponding generation
Multiple 3rd capacitive sensing amounts of table the plurality of pixel sensing group, respectively this pixel sensing group includes at least two pixel electricity
Pole, respectively the 3rd capacitive sensing amount is by the second capacitive sensing of these at least two pixel electrodes in this pixel sensing group
Measure computing and obtain；And
C () carries out the coordinate of touch-control object according to the plurality of first capacitive sensing amount and the plurality of 3rd capacitive sensing amount
Computing.
Contactor control device and the coordinate operation method thereof of identification of fingerprint is had, due to this fingerprint identifier from the above present invention
Occupy this touch detection region of some, therefore when this touch detection region of this this swept-volume of touch-control, the present invention reads simultaneously
Take the second capacitive sensing amount of this fingerprint identifier, and calculate the 3rd capacitive sensing amount according to this, sweep compensating this touch-control body
Complete touch detection district can be obtained because of capacitive sensing amount, so this touch-control body lacking in the setting of fingerprint identifier after retouching
The capacitive sensing amount in territory, solves because touching object passes through fingerprint identifier, it is impossible to the fullpath of this touching object of detection；Change speech
It, the present invention can detection to the touching coordinate touching object on this touch detection region.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Figure 1A: the schematic top plan view of the first embodiment of contactor control device of the present invention.
The schematic top plan view of the second embodiment of Figure 1B: contactor control device of the present invention.
The schematic side view of the 3rd embodiment of Fig. 2 A: contactor control device of the present invention.
The schematic side view of the 4th embodiment of Fig. 2 B: contactor control device of the present invention.
The schematic side view of the 5th embodiment of Fig. 2 C: contactor control device of the present invention.
The partial enlarged drawing of Fig. 3 A: Fig. 1.
The partial enlarged drawing of Fig. 3 B: Fig. 3 A.
Fig. 4 A: touch-induction circuit of the present invention and a functional block diagram of reading circuit.
Another functional block diagram of Fig. 4 B: touch-induction circuit of the present invention and reading circuit.
Fig. 5 A: touch-induction circuit of the present invention reads the sensing picture frame of the first capacitive sensing amount of multiple sensing units.
Sensing picture frame after Fig. 5 B: Fig. 5 A compensation.
Fig. 5 C: the present invention treats normalized sensing picture frame.
Fig. 6 A: reading circuit of the present invention reads the sensing picture frame of the second capacitive sensing amount of multiple pixel electrodes.
The sensing picture frame of Fig. 6 B: Fig. 6 A corresponding multiple picture numbers sensing group's scope.
Fig. 7 A: contactor control device of the present invention calculates the second initial capacitance sense of multiple picture number sensing group under touchless object
The sensing picture frame that should measure.
Fig. 7 B: contactor control device of the present invention calculates the second touching electric capacity sense of multiple picture number sensing group under touchless object
The sensing picture frame that should measure.
Fig. 7 C: contactor control device of the present invention calculates the sensing picture frame of the 3rd capacitive sensing amount.
The sensing picture frame of Fig. 7 D: Fig. 7 C the 3rd capacitive sensing amount after normalization program.
A kind of schematic diagram of the keyboard host housing of Fig. 8 A: an existing notebook computer.
The schematic diagram of the another kind of keyboard host housing of Fig. 8 B: an existing notebook computer.
The schematic diagram of the another kind of keyboard host housing of Fig. 8 C: an existing notebook computer.
Wherein, reference
10 contactor control devices
20 touch-control bodies
201 first circuit boards
21 sensing units
211x axle induction electrode
212y axle induction electrode
22 touch-induction circuits
221 receive unit
222 master controllers
223 signal processing units
30 fingerprint identifiers
301 second circuit boards
31 pixel electrodes
32 reading circuits
40 touching objects
A touch detection region
A1 first area
A2 second area
50 shells
60 fingerprint identifiers
61,61 ' contactor control device
611 left buttons
612 right buttons
Detailed description of the invention
With specific embodiment, technical solution of the present invention is described in detail below in conjunction with the accompanying drawings, to be further understood that
The purpose of the present invention, scheme and effect, but it is not intended as the restriction of scope of the appended claims of the present invention.
The present invention proposes a kind of contactor control device having identification of fingerprint, and this contactor control device can be touched at a fingerprint identifier in detection
On touching object coordinate.
Referring initially to shown in Figure 1A, having the first embodiment of the contactor control device 10 of identification of fingerprint for the present invention, it comprises
Having touch-control body 20 and a fingerprint identifier 30, this touch-control body 20 and this fingerprint identifier 30 collectively form a touch detection
Region A, this touch detection region A include an a first area A1 and second area A2, and this touch-control body 20 is correspondingly arranged at
This first area A1, and this fingerprint identifier 30 is correspondingly arranged at this second area A2.In the present embodiment, this second area A2
Be positioned at the corner of this touch detection region A, also can the second embodiment as shown in Figure 1B, this second area A2 is positioned at this touch-control to be detectd
Survey the centre position of region A wherein side, but be all not limited.
Again please refer to shown in Fig. 2 A, this touch-control body 20 has a coordinate in including multiple sensing unit 21 and
The touch-induction circuit 22 of operation program, the plurality of sensing unit 21 to should touch detection region A first area A1 arrange
It is formed at a upper surface of a circuit board 201, and is covered by one first protective layer 23, and this touch-induction circuit 22 is via electricity
Road plate 201 electrically connects with the plurality of sensing unit 21.This fingerprint identifier 30 includes multiple pixel electrode 31 and and reads electricity
Road 32, the plurality of pixel electrode 31 to should the second area A2 of touch detection region A, and be formed on a chip 302, and
Being covered by one second protective layer 33, this reading circuit 32 is positioned in chip 302, and is electrically connected with the plurality of pixel electrode 31
Connect；This chip 302 is fixed on a substrate 301 again, and electrically connects with this circuit board 201 through this substrate 301, makes this reading electricity
Road 32 electrically connects with this touch-induction circuit 22.For avoiding the boundary line between this first and second protective layer 23,33 to affect finger
Slide feel, in one embodiment, the upper surface of this first and second protective layer 23,33 is concordant, can avoid this first and
Boundary line between second protective layer 23,33 affects the feel that finger slides.
In other embodiments, can as shown in Figure 2 B, wherein this substrate 301 to should touch detection region A second
Region A2, and it is directly arranged at the upper surface of this circuit board 201, through weld pad thereon (not illustrating) and this circuit board 201
Corresponding weld pad (not illustrating) welding, makes this reading circuit 32 electrically connect with this touch-induction circuit 22.Or, such as Fig. 2 C institute
Showing, this circuit board 201 and this substrate 301 share same circuit board, so this reading circuit 32 and this touch-induction circuit 22
Can be electrically connected to each other.
Referring to shown in Fig. 3 A, it is Figure 1A partial enlarged drawing, and the plurality of sensing unit 21 of this touch-control body 20 is in square
Battle array arrangement；Coordinate shown in Fig. 3 B again, as a example by diamond induction electrode pattern, respectively this sensing unit 21 length in the direction of the x axis
Degree (hereinafter referred to as length) is distance D1 between its two half adjacent s axle induction electrodes 211 contained, and it is at y
Width (hereinafter referred to as width) on direction of principal axis is distance D2 between its two half adjacent y-axis induction electrodes 212 contained,
Wherein distance D1, D2 are respectively 4mm to 5mm；And the plurality of pixel electrode 31 of this fingerprint identifier 30 is arranged in arrays, with
For the fingerprint identifier 30 of 508dpi, respectively this pixel electrode 31 a size of 50um*50um.For convenience of following description, it is assumed that should
Touch-control body 20 includes 10*14 sensing unit 21, and this fingerprint identifier 30 includes 10*10 pixel electrode 31, but not with
This quantity is limited.Coordinate shown in Figure 1A, if be arranged at the 10*10 pixel electrode 31 of the fingerprint identifier 30 of this second area A2 with
One sensing unit 21 area is unit, then this second area A2 about can be divided into the array area of 3*3 sensing unit 21,
Make this 10*10 pixel electrode 31 can be divided into nine pixel sensing group G11～G33 by correspondence.Also, due to this fingerprint identifier
The periphery of 30 has the non-inductive frame 33 of one fixed width W, is affected by this non-inductive frame 33, except this pixel senses group
The area of G22 can be just to should be outside the area of sensing unit 21, and this other pixel sensing group then can be less than this sensing unit
The area of 21, the most therefore causes respectively this pixel sensing group G11～G33 may include the pixel electrode 31 of unequal number amount, such as:
Pixel sensing group G11 comprises 3*3 pixel electrode 31, pixel sensing group G12 comprises 3*4 pixel electrode 31 or pixel sensing group
G22 comprises 4*4 pixel electrode 31.Therefore, in one embodiment, the sensing of this pixel group G11～G33 and this sensing unit 21 it
Between configuration relation can as shown in Figure 3A, respectively this pixel sensing group G11～G33 at least one x-axis side and at least one
Individual y-axis side aligns the relative side of its corresponding sensing unit 21.
Refer to shown in Fig. 4 A again, for an embodiment of this touch-induction circuit 22, its include a reception unit 221 and
One master controller 222, this master controller 222 receives the first capacitive sensing of respectively this sensing unit 21 through this reception unit 221
Amount, when this master controller 222 scans through this whole sensing units 21, can obtain sensing picture frame, only this sense as shown in Figure 5
Nine positions answering Ty1～Ty3 and Tx1～Tx3 of picture frame to interlock do not include the first capacitive sensing amount.This reading circuit 32 is then
Receive the second capacitive sensing amount of respectively this pixel electrode 31, to obtain a sensing picture frame as shown in Figure 6A.In the present embodiment,
Owing to this reading circuit 32 is electrically connected to the master controller 222 of this touch-induction circuit 22, therefore can be by this each this pixel electrode 31
The second capacitive sensing amount be sent to this master controller 222, this master controller 222 can according to set by the plurality of pixel electrode 31
Corresponding to respectively this pixel sensing group G11～G33 shown in Fig. 3 A, therefore the sensing picture frame of Fig. 6 A can divide accordingly and feel as shown in Figure 6B
Answer picture frame, namely the second capacitive sensing of nine pixel electrodes 31 that first group of pixel sensing group G11 of corresponding diagram 3A is comprised
Amount, is nine the second capacitive sensing amounts staggered for Py1～Py3 and Px1～Px3 in Fig. 6 B, and second group of pixel senses group G12 institute
Second capacitive sensing amount of 12 pixel electrodes 31 comprised, is Py4～Py7 and Px1～Px3 in Fig. 6 B staggered 12
Individual second capacitive sensing amount, the 3rd group of pixel senses the second capacitive sensing amount of nine pixel electrodes 31 that group G13 is comprised, i.e.
Nine the second capacitive sensing amounts interlocked for Py8～Py10 and Px1～Px3 in Fig. 6 B, by that analogy；Therefore, this master controller
222 after the second capacitive sensing amount obtaining these all pixel electrodes 31, can be further with each group of pixel sensing group G11～G33
Second capacitive sensing amount of corresponding multiple pixel electrodes 31, calculates respectively and represents this group pixel sensing group G11's～G33
3rd capacitive sensing amount.Therefore, this master controller 222 can obtain the nine groups of pixels being positioned at this second area A2 as shown in Figure 1A
The 3rd capacitive sensing amount of sensing group G11～G33, uses and compensates nine the first capacitive sensings that sensing picture frame shown in Fig. 5 A lacks
Amount, and constitute one and completely sense picture frame, this master controller 222 i.e. distinguishes this touch detection district shown in Figure 1A according to complete sensing picture frame
The touching coordinate of the touching object of optional position on the A of territory.
Referring to shown in Fig. 3 A and Fig. 4 B again, for another embodiment of this touch-induction circuit 22, it comprises Fig. 4 B equally
This reception unit 221 and this master controller 222, only this master controller 222 is through a signal processing unit 223, such as numeral
Processor (DSP), single-chip or processor etc., be electrically connected to this reading circuit 32.Therefore, this signal processing unit 223 depend on
According to setting, the plurality of pixel electrode 31 correspondence to respectively this pixel as shown in Figure 3A is sensed group G11～G33, and in obtaining this institute
After having the second capacitive sensing amount of pixel electrode 31, further with the multiple pixels corresponding to each group of pixel sensing group G11～G33
Second capacitive sensing amount of electrode 31, calculates the 3rd capacitive sensing amount representing this group pixel sensing group G11～G33 respectively,
Again respectively the 3rd capacitive sensing amount is sent to this master controller 222.Therefore, this master controller 222 of the present embodiment can be direct
Obtain from this signal processing unit 223, be positioned at the 3rd electric capacity sense of nine groups of pixel sensing group G11～G33 of this second area A2
Ying Liang, uses and compensates nine the first capacitive sensing amounts that sensing picture frame shown in Fig. 5 A lacks, and constitute one and completely sense picture frame.
One embodiment of the above-mentioned respectively computing mode of the 3rd capacitive sensing amount further explained below, referring initially to figure
Shown in 7A, when touchless object on contactor control device 10, read the electric capacity of the plurality of pixel electrode 31 of this fingerprint identifier 30
Variable quantity is as the second initial capacitance sensing amount, by the of the plurality of pixel electrode 31 in respectively this pixel sensing group G11～G33
Two initial capacitance sensing amounts are averaged (or being added after first binaryzation) again after being added, as a reference value.The most as shown in Figure 7 B, when
This touching object 40 (such as finger) is touched on this fingerprint identifier 30, reads the plurality of pixel electrode of this fingerprint identifier 30
Multiple capacitance changes of 31 are as this second touching capacitive sensing amount, the most each second touching capacitive sensing amount correspondence one
Pixel electrode.It follows that by the second touching electric capacity sense of the plurality of pixel electrode 31 in respectively this pixel sensing group G11～G33
(or being added after first binaryzation) it is averaged again, as an influence value, the corresponding influence value of each pixel sensing group after should measuring addition；
Afterwards, this reference value of calculating respectively this pixel sensing group G11～G33 and the difference of this influence value, as seen in figure 7 c, and poor with this
It is worth the 3rd capacitive sensing amount as respectively this pixel sensing group G11～G33.
The first capacitive sensing amount due to the second capacitive sensing amount and respectively this sensing unit 21 of each this pixel electrode 31
Numerical range likely differs；Therefore, front take off obtained by computing respectively the 3rd capacitive sensing amount can to carry out one further regular
Change program.This normalization program is that respectively this pixel sensing group G11～G33 the 3rd capacitive sensing amount after computing can be to feeling
Answer the numeric distribution scope of the capacitive sensing amount of unit 21, be based on respectively this pixel sensing group G11～G33 institute in the present embodiment
The proportional numerical value that corresponding one presets, is multiplied by this proportional numerical value by the 3rd capacitive sensing amount of respectively this pixel sensing group G11～G33
After, allow the sensing amount after its computing that the first capacitive sensing amount of sensing unit 21 can be taken as to use, as illustrated in fig. 7d, as
3rd capacitive sensing amount can be used for compensating shown in Fig. 5 A nine the first capacitive sensing amounts lacking of picture frame that sense by this, and structure
Become as shown in Figure 5 B completely to sense picture frame, therefore the coordinate that can carry out this touch detection region A calculates and gesture identification.
Before take off default proportional numerical value can via one standard touching object (such as simulation finger touching counterweight) touch respectively
Touch the wherein sensing of a sensing unit 21 and one of them pixel group G11, G12 ..., G33, this first faradism capacity obtained
The highest with the 3rd capacitive sensing amount (peak value), by the first faradism capacity divided by the 3rd faradism capacity, it is thus achieved that a ratio, should
Ratio is the proportional numerical value preset of this pixel sensing group by standard touching object touching.When the touching object touching of this standard
All pixels sensing group G11, G12 ..., after G33, it is thus achieved that the 3rd corresponding capacitive sensing amount, more respectively with this first inductance capacitance
Measure the ratio obtained that is divided by, be the proportional numerical value preset of each pixel sensing group.Those proportional numerical values preset can be with form
(table) it is stored.
The most as shown in Figure 3A, owing to this fingerprint identifier 30 periphery has the non-inductive frame 33 of one fixed width W, this non-inductive
Frame 33 is between this touch-control body 20 and fingerprint identifier 30.In order to allow the 3rd capacitive sensing amount compensate lacking in Fig. 5 A
First capacitive sensing amount, and to maintain the preferably linearity or signal quality, respectively the 3rd of this pixel sensing group G11～G33
Capacitive sensing amount can carry out after arithmetic expression set forth below carries out computing further with its periphery the first capacitive sensing amount, then compensates figure
The first capacitive sensing amount that 5A lacks:
RdVi,j=a+b × dVi,j+c1×dVi-1,j-1+c2×dVi-1,j+c3×dVi-1,j+1+c4*dVi,j-1+c5×dVi,j+1
+c6×dVi+1,j-1+c7×dVi+1,j+c8×dVi+,j+1；Wherein:
RdVi,jThe 3rd capacitive sensing amount of group is sensed for this pixel after normalization；
dVi,jThe 3rd capacitive sensing amount for current pixel sensing group；
A is a dc component correction constant value；
B be current pixel sensing group the 3rd capacitive sensing amount and the first capacitive sensing amount of a sensing unit between poor
Different proportion；And
C1～c8 is to treat at present between normalized pixel sensing group and the first capacitive sensing amount of its periphery sensing unit
Relation proportion.
As a example by Fig. 3 A, when one touching object touching contactor control device time, the three, the six in this fingerprint identifier 30 to
Nine pixel sensing groups are easier to the most touched with its periphery sensing unit, the most therebetween because non-inductive frame 33 there are necessarily
The interval of width W, it is therefore assumed that the 3rd capacitive sensing amount dV to Fig. 5 C the 5th pixel sensing group G232,3Carry out normalization, then
Bring the 3rd capacitive sensing amount RdV after above formula can get its normalization into2,3For:
RdV2,3=a+b*1785+c1*92+c2* (-26)+c3*0+c4*2966+c5*0+c6*2778+c7*2626+c8*
51；
Due to the 5th pixel sensing group G23 with its on the right of sensing unit interface area relatively big, therefore above formula also can be reduced to:
RdV2,3=a+b*1785+c5*0；
About the decision of b Yu c5, it is described as follows.
C5 first can be touched two sensing units (2,4), (Isosorbide-5-Nitraes), when touching this sense by a standard touching object equally respectively
When answering unit (2,4), the capacitive sensing value of the two adjacent left and right sensing units of this sensing unit (2,4) should be roughly the same, therefore can
Sort out linear equation in two unknowns formula a: b*dV2,3+c5*dV2,4=dV2,5；Wherein dV2,3、dV2,4、dV2,5Thing is touched through standard
It is known after part touching；For trying to achieve b and c5 of the unknown, the most again this standard touching object is touched another sensing unit (Isosorbide-5-Nitrae),
Now can obtain another group dV2,3、dV2,4、dV2,5, therefore another linear equation in two unknowns formula can be sorted out, and with a upper binary
B and c5 is obtained after one way journey solution simultaneous equations.In like manner, c1～c4, c6～c8 can also same way obtain.
In sum, the contactor control device of the present invention incorporates fingerprint identifier 30, and this fingerprint identifier 30 occupies this and touches
The second area A2 of control detection area A, the present invention, when this touch-control body 20 scans this touch detection region A, reads the most simultaneously
Second capacitive sensing amount of this fingerprint identifier 30, and calculate the 3rd capacitive sensing amount according to this, thereby compensate this touch-control body
Can obtain because of capacitive sensing amount information, so this touch-control body 20 lacking in the setting of fingerprint identifier 30 after 20 scannings
The capacitive sensing amount of whole this touch detection region A, solves existing device because of the mobile route of this touching object 40 and passes through fingerprint
Identifier 30, and cannot the fullpath of this touching object of detection；In other words, can detection touch on the A of this touch detection region
Touch the touching coordinate of object 40.
Therefore, the coordinate operation method of contactor control device of the present invention includes: (a) reads multiple senses of this touch-control body respectively
Answer multiple first capacitive sensing amounts of unit, and multiple second capacitive sensing amounts of multiple pixel electrodes of this fingerprint identifier；
(b) the plurality of pixel electrode is divided into multiple pixel sensing group, and obtain correspondence represent the plurality of pixel sensing group the 3rd electricity
Holding sensing amount, respectively this pixel sensing group includes at least two pixel electrodes, and respectively the 3rd capacitive sensing amount is by one
This pixel senses the second capacitive sensing amount computing of these at least two pixel electrodes in group and obtains；And (c) is according to the plurality of
First capacitive sensing amount and the plurality of 3rd capacitive sensing amount carry out the coordinate computing of touch-control object.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art to work as and can make various corresponding change and deformation according to the present invention, but these change accordingly and become
Shape all should belong to the protection domain of appended claims of the invention.
Claims (13)
1. the coordinate operation method of the contactor control device having identification of fingerprint, it is characterised in that this contactor control device includes and touches
Control body and a fingerprint identifier, this touch-control body and this fingerprint identifier collectively form a touch detection region, and this touch-control is originally
Body comprises multiple sensing unit, and this fingerprint identifier comprises multiple pixel electrode, and wherein the method comprises:
A () reads multiple first capacitive sensing amounts of multiple sensing units of this touch-control body respectively, and this fingerprint identifier
Multiple second capacitive sensing amounts of multiple pixel electrodes；
(b) the plurality of pixel electrode is divided into multiple pixel sensing group, and obtain correspondence represent the plurality of pixel sensing group many
Individual 3rd capacitive sensing amount, respectively this pixel sensing group includes at least two pixel electrodes, respectively the 3rd capacitive sensing amount
It is the second capacitive sensing amount computing by these at least two pixel electrodes in this pixel sensing group and obtains；And
C () carries out the coordinate fortune of touch-control object according to the plurality of first capacitive sensing amount and the plurality of 3rd capacitive sensing amount
Calculate.
2. coordinate operation method as claimed in claim 1, it is characterised in that read this identification of fingerprint in this step (a) respectively
Second capacitive sensing amount of multiple pixel electrodes of device comprises the steps of further
(a1) read this fingerprint identifier in do not have touching object time the plurality of pixel electrode capacitance change as one second
Initial capacitance sensing amount；And
(a2) read this fingerprint identifier in have touching object time the plurality of pixel electrode capacitance change as this second touch
Touch capacitive sensing amount.
3. coordinate operation method as claimed in claim 2, it is characterised in that in this step (b) respectively this pixel sensing group the
Three capacitive sensing amounts are obtained by following steps computing further:
(b1) it is averaged after the second initial capacitance sensing amount of the plurality of pixel electrode in respectively this pixel sensing group being added, makees
It it is a reference value；
(b2) it is averaged after the second touching capacitive sensing amount of the plurality of pixel electrode in respectively this pixel sensing group being added, makees
It it is an influence value；And
(b3) calculating this reference value and the difference of this influence value of respectively this pixel sensing group, this difference is representative respectively this pixel sense
The 3rd capacitive sensing amount of Ying Qun.
4. coordinate operation method as claimed in claim 2, it is characterised in that in this step (b) respectively this pixel sensing group the
Three capacitive sensing amounts are obtained by following steps computing further:
(b1) the second initial capacitance sensing of the plurality of pixel electrode in respectively this pixel sensing group is measured and add after binaryzation respectively
Always, as a reference value；
(b2) add after the second touching capacitive sensing amount binaryzation respectively of the plurality of pixel electrode in respectively this pixel sensing group
Always, as an influence value；And
(b3) calculating this reference value and the difference of this influence value of respectively this pixel sensing group, this difference is representative respectively this pixel sense
The 3rd capacitive sensing amount of Ying Qun.
5. coordinate operation method as claimed in claim 1, it is characterised in that before performing this step (c), first to respectively this picture
The 3rd capacitive sensing amount of element sensing group carries out a normalization program.
6. coordinate operation method as claimed in claim 5, it is characterised in that this normalization program is based on respectively this pixel sensing
The proportional numerical value that corresponding to Qun one presets, is multiplied by this proportional numerical value by the 3rd capacitive sensing amount of respectively this pixel sensing group.
7. coordinate operation method as claimed in claim 6, it is characterised in that respectively this corresponding to this pixel sensing group is preset
Proportional numerical value is obtained by following steps:
By touch-control object touch respectively respectively this pixel sensing group with this wherein after a sensing unit, it is thus achieved that respectively this pixel sensing group
3rd capacitive sensing amount and the first capacitive sensing amount of this sensing unit；And
Take the first capacitive sensing amount of this sensing unit and the ratio of the 3rd capacitive sensing amount of respectively this pixel sensing group, order respectively
This ratio is to pixel sensing the proportional numerical value that group presets.
8. the contactor control device having identification of fingerprint, it is characterised in that including:
One touch-control body, comprises multiple sensing unit and a touch-induction circuit, and this touch-induction circuit electrically connects the plurality of sense
Answer unit, and in have a coordinate operation program；And
One fingerprint identifier, comprises multiple pixel electrode and a reading circuit；This reading circuit is electrically connected to the plurality of fingerprint electricity
Pole and this touch-induction circuit, this touch-control body and this fingerprint identifier collectively form a touch detection region；
Above-mentioned touch-induction circuit performs this coordinate operation program, comprises the steps of
A () reads multiple first capacitive sensing amounts of multiple sensing units of this touch-control body via this touch-induction circuit, and
Multiple second capacitive sensing amounts of the plurality of pixel electrode are read via this reading circuit；
B the plurality of pixel electrode is divided into multiple pixel sensing group via this touch-induction circuit by (), and obtain corresponding representative should
Multiple 3rd capacitive sensing amounts of multiple pixels sensing group, respectively this pixel sensing group includes at least two pixel electrodes,
Respectively the 3rd capacitive sensing amount is by the second capacitive sensing amount of these at least two pixel electrodes in this pixel sensing group
Computing and obtain；And
C () carries out the coordinate fortune of touch-control object according to the plurality of first capacitive sensing amount and the plurality of 3rd capacitive sensing amount
Calculate.
9. contactor control device as claimed in claim 8, it is characterised in that this touch-induction circuit further includes:
One receives unit, is electrically connected to the plurality of sensing unit, to receive the plurality of first electric capacity sense of the plurality of sensing unit
Ying Liang；And
One master controller, is electrically connected to this reception unit, tactile to perform reading this in this step (a) respectively through this reception unit
Control multiple first capacitive sensing amounts of multiple sensing units of body, and this master controller is electrically connected to this reading circuit, with thoroughly
Cross multiple second electric capacity senses that this reading circuit performs to read respectively in this step (a) multiple pixel electrodes of this fingerprint identifier
Ying Liang；This master controller performs step (b) and (c) further again.
10. contactor control device as claimed in claim 8, it is characterised in that this touch-induction circuit further includes:
One receives unit, is electrically connected to the plurality of sensing unit, to receive multiple first capacitive sensings of the plurality of sensing unit
Amount；
One signal processing unit, is electrically connected to this reading circuit, to perform to read respectively in this step (a) through this reading circuit
Multiple second capacitive sensing amount and steps (b) of multiple pixel electrodes of this fingerprint identifier；And
One master controller, is electrically connected to this reception unit, to perform to read respectively in this step (a) this touch-control through this receipts unit
Multiple first capacitive sensing amounts of multiple sensing units of body, and this master controller is electrically connected to this signal processing unit, with
The 3rd capacitive sensing amount of respectively this pixel sensing group is obtained through this signal processing unit；This master controller performs further again
Step (c).
11. contactor control devices as claimed in claim 8, it is characterised in that wherein:
This touch detection region includes a first area and a second area；
This touch-control body further includes a circuit board and one first protective layer, and the plurality of sensing unit is to should first area
It is arranged on this circuit board, and is covered by this first protective layer；And
This fingerprint identifier further includes a substrate, one is arranged at the chip on this substrate and one second protective layer, and these are many
Individual pixel electrode is to being arranged on this chip by second area, and is covered by this second protective layer, and this first and second
The surface of protective layer flushes.
12. contactor control devices as claimed in claim 11, it is characterised in that this circuit board and this substrate are integrated into single circuit
Plate.
13. contactor control devices as claimed in claim 8, it is characterised in that wherein:
This touch detection region includes a first area and a second area；
This touch-control body further includes a circuit board and one first protective layer, and the plurality of sensing unit is to should first area
It is arranged on this circuit board, and is covered by this first protective layer；And
This fingerprint identifier further includes a substrate, one is arranged at the chip on this substrate and one second protective layer, this base
Plate to being arranged on this circuit board by second area, the plurality of pixel electrode to being arranged at this chip by second area, and
Covered by this second protective layer, and the surface of this first and second protective layer is flushed.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562109070P | 2015-01-29 | 2015-01-29 | |
| US62/109,070 | 2015-01-29 | ||
| TW104134639A TWI549068B (en) | 2015-01-29 | 2015-10-22 | Fingerprint Identifying Touch Device and Coordinates Calculating Method Thereof |
| TW104134639 | 2015-10-22 |
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| Publication Number | Publication Date |
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| CN105843461A true CN105843461A (en) | 2016-08-10 |
| CN105843461B CN105843461B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510864507.6A Expired - Fee Related CN105843461B (en) | 2015-01-29 | 2015-12-01 | Touch device with fingerprint identification function and coordinate operation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106326715A (en) * | 2016-10-20 | 2017-01-11 | 宸美（厦门）光电有限公司 | Fingerprint identification device |
| WO2018126368A1 (en) * | 2017-01-05 | 2018-07-12 | 深圳市汇顶科技股份有限公司 | Touch control device and method for determining capacitive sensing amount of touch control device |
| TWI637309B (en) * | 2016-10-25 | 2018-10-01 | 南韓商樂金顯示科技股份有限公司 | Touchscreen device with integrated fingerprint sensor |
| CN109409320A (en) * | 2018-11-08 | 2019-03-01 | Oppo广东移动通信有限公司 | Fingerprint collecting method and relevant device |
| TWI664581B (en) * | 2017-06-15 | 2019-07-01 | 神盾股份有限公司 | Optical fingerprint sensor |
| CN112347812A (en) * | 2019-08-07 | 2021-02-09 | 群创光电股份有限公司 | Method for detecting fingerprint through electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387927A (en) * | 2008-11-04 | 2009-03-18 | 友达光电股份有限公司 | Touch control detecting method of touch control panel |
| TW201017555A (en) * | 2008-10-17 | 2010-05-01 | Acer Inc | Fingerprint detection device and method and associated touch control device with fingerprint detection |
| US20130287274A1 (en) * | 2012-04-29 | 2013-10-31 | Weidong Shi | Methods and Apparatuses of Unified Capacitive Based Sensing of Touch and Fingerprint |
| CN104239893A (en) * | 2014-08-26 | 2014-12-24 | 南昌欧菲生物识别技术有限公司 | Fingerprint identification detecting component and terminal device with fingerprint identification detecting function |
-
2015
- 2015-12-01 CN CN201510864507.6A patent/CN105843461B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201017555A (en) * | 2008-10-17 | 2010-05-01 | Acer Inc | Fingerprint detection device and method and associated touch control device with fingerprint detection |
| CN101387927A (en) * | 2008-11-04 | 2009-03-18 | 友达光电股份有限公司 | Touch control detecting method of touch control panel |
| US20130287274A1 (en) * | 2012-04-29 | 2013-10-31 | Weidong Shi | Methods and Apparatuses of Unified Capacitive Based Sensing of Touch and Fingerprint |
| CN104239893A (en) * | 2014-08-26 | 2014-12-24 | 南昌欧菲生物识别技术有限公司 | Fingerprint identification detecting component and terminal device with fingerprint identification detecting function |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106326715A (en) * | 2016-10-20 | 2017-01-11 | 宸美（厦门）光电有限公司 | Fingerprint identification device |
| CN106326715B (en) * | 2016-10-20 | 2024-01-23 | 宸美（厦门）光电有限公司 | Fingerprint identification device |
| TWI637309B (en) * | 2016-10-25 | 2018-10-01 | 南韓商樂金顯示科技股份有限公司 | Touchscreen device with integrated fingerprint sensor |
| WO2018126368A1 (en) * | 2017-01-05 | 2018-07-12 | 深圳市汇顶科技股份有限公司 | Touch control device and method for determining capacitive sensing amount of touch control device |
| CN108604146A (en) * | 2017-01-05 | 2018-09-28 | 深圳市汇顶科技股份有限公司 | The method of the capacitive sensing amount of touch device and determining touch device |
| CN108604146B (en) * | 2017-01-05 | 2021-07-16 | 深圳市汇顶科技股份有限公司 | Touch device and method for determining capacitance induction quantity of touch device |
| TWI664581B (en) * | 2017-06-15 | 2019-07-01 | 神盾股份有限公司 | Optical fingerprint sensor |
| CN109409320A (en) * | 2018-11-08 | 2019-03-01 | Oppo广东移动通信有限公司 | Fingerprint collecting method and relevant device |
| CN112347812A (en) * | 2019-08-07 | 2021-02-09 | 群创光电股份有限公司 | Method for detecting fingerprint through electronic device |
| CN112347812B (en) * | 2019-08-07 | 2024-04-19 | 群创光电股份有限公司 | Method for detecting fingerprint by electronic device |
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