CN104156709B - Fingerprint recognition detection components, terminal device and fingerprint authentication method - Google Patents
Fingerprint recognition detection components, terminal device and fingerprint authentication method Download PDFInfo
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- CN104156709B CN104156709B CN201410424156.2A CN201410424156A CN104156709B CN 104156709 B CN104156709 B CN 104156709B CN 201410424156 A CN201410424156 A CN 201410424156A CN 104156709 B CN104156709 B CN 104156709B
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Abstract
Present disclose provides a kind of fingerprint recognition detection components, terminal device and fingerprint authentication methods.The fingerprint recognition detection components include: push type fingerprint detection element；It wipes and draws formula fingerprint detection element；Security level acquiring unit, for obtaining the security level of affairs to be verified；Verification mode switch unit, for enabling the push type fingerprint detection element and carrying out fingerprint authentication when the security level got is the first security level；And when the security level got is the second security level, enables described wipe and draw formula fingerprint detection element progress fingerprint authentication；Wherein first security level is different from second security level.The disclosure, which both may be implemented to wipe, draws formula fingerprint authentication, and push type fingerprint authentication also may be implemented.
Description
Technical field
This disclosure relates to which fingerprint recognition field, in particular to a kind of fingerprint recognition detection components have fingerprint recognition detection
The terminal device and fingerprint authentication method of function.
Background technique
With the extensive use of portable terminal in people's daily life, the function of present portable terminal is increasingly
It is powerful, and this diversified function facilitates user.But portable terminal is providing the same of more conveniences for user
When, too many personal information is carried, if this portable terminal is once losing or being stolen, these information are not due to having
Relevant protection is carried out, therefore is easy to let out, is made troubles to user.Therefore, some guarantors are on portable terminal
The setting of close aspect is very necessary.Current portable terminal is mostly realized using forms such as password, figures to its terminal
The cryptoguard of equipment.
However, user need to remember the password and/or figure of setting for cipher modes such as password, figures；In addition, in public affairs
Occasion altogether, there is also the danger of password leakage.And in order to improve safety, the complexity for increasing password and figure is generally required,
This undoubtedly further increase user memory difficulty, cause it is safe with it is easy-to-use between conflict.
Fingerprint is made of the rough lines of finger surface skin, is the unique feature of human body, complicated journey
Degree can provide enough features for identification.Fingerprint recognition is to realize identity using the characteristics of fingerprint uniqueness and stability
Identification is remembered without user.
Capacitance type fingerprint detection recognizer component forms conducting channel on substrate substrate, when finger and sensor contacts,
It is detected by difference capacitance caused by the protrusion of fingerprint ridge and the recess of fingerprint valley and forms fingerprint pattern.
In the prior art, capacitance type fingerprint identification technology includes wiping to draw formula fingerprint fingerprint identification technology and the knowledge of push type fingerprint
Other technology.Wiping a stroke formula fingerprint fingerprint identification technology has the characteristics that cost is relatively low, area of detection is big, and push type fingerprint recognition skill
Art has the characteristics that accuracy of identification is high but area of detection is usually smaller.
Summary of the invention
The disclosure is designed to provide a kind of fingerprint recognition detection components and with the fingerprint recognition detection components
Terminal device, for realizing that formula fingerprint fingerprint identification function and push type fingerprint identification function are drawn in wiping simultaneously；Further, this public affairs
It opens and additionally provides a kind of fingerprint authentication method.
Fingerprint identification function is realized on the devices such as such as portable terminal.
Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by the disclosure
Practice and acquistion.
According to one aspect of the disclosure, a kind of fingerprint recognition detection components:
A kind of fingerprint recognition detection components, it is characterised in that:
Push type fingerprint detection element；
It wipes and draws formula fingerprint detection element；
Security level acquiring unit, for obtaining the security level of affairs to be verified；
Verification mode switch unit, for enabling the pressing when the security level got is the first security level
Formula fingerprint detection element carries out fingerprint authentication；And when the security level got is the second security level, enable the wiping
It draws formula fingerprint detection element and carries out fingerprint authentication；
Wherein first security level is different from second security level.
In a kind of example embodiment of the disclosure, it is described wipe draw formula fingerprint detection element detection width be greater than or
Equal to the detection width of the push type fingerprint detection element.
In a kind of example embodiment of the disclosure,
It includes multiple electrodes that a formula fingerprint detection element is drawn in the push type fingerprint detection element and wiping；
Partial electrode in the multiple electrode by the push type fingerprint detection element and wipes a stroke formula fingerprint detection element
It shares.
In a kind of example embodiment of the disclosure, the pressing fingerprint detection element includes:
The line-column matrix being made of plurality of first electrodes and the plurality of second electrodes, every row include multiple first electrodes or more
A second electrode, each column include adjacent pair first electrode and the second electricity in multiple first electrodes and second electrode and each column
Pole forms a push type fingerprint identification unit；
In each column of the line-column matrix, the first electrode of each fingerprint identification unit is electrically connected to each other；
In the row that the line-column matrix is made of second electrode, the second electrode is electrically connected to each other；
A formula fingerprint detection element is drawn in the wiping
The row being made of second electrode；
Third electrode, with it is each it is described be made of second electrode it is separatedly opposite to be formed between multiple first detections in the ranks
Gap.
In a kind of example embodiment of the disclosure, the row being made of first electrode and the row phase being made of second electrode
Between be arranged；
The second detector gap is formed between first electrode and second electrode in each push type fingerprint identification unit；Institute
State half of second detector gap no more than two neighboring fingerprint identification unit centre distance in a column.
In a kind of example embodiment of the disclosure, in each fingerprint identification unit column, adjacent fingerprint recognition unit
First electrode and second electrode setting order it is opposite.
In a kind of example embodiment of the disclosure, electrode series connection is connected between each column first electrode；
The row being made of second electrode is provided with insulating layer between the part Chong Die with the connection electrode.
In a kind of example embodiment of the disclosure, the insulating layer includes silica or organic insulating material.
In a kind of example embodiment of the disclosure, the first electrode is the sense of the push type fingerprint detection element
One of electrode or driving electrodes are answered, the second electrode is the induction electrode or driving electrodes of the push type fingerprint detection element
It is another；
The second electrode is the driving electrodes wiped and draw formula fingerprint detection element, and the third electrode is that described wipe is drawn
The induction electrode of formula fingerprint detection element.
In a kind of example embodiment of the disclosure, the first electrode, second electrode, third electrode and connection electricity
Pole includes metallic particles, graphene, carbon nanotube or conductive polymer material.
In a kind of example embodiment of the disclosure, described wipe draws formula fingerprint detection element further include:
Reference electrode, be oppositely arranged with the third electrode and be located at the third electrode with the multiple by the second electricity
The opposite side of the row that pole is constituted.
In a kind of example embodiment of the disclosure, described wipe draws formula fingerprint detection element further include:
A plurality of illusory driving electrodes, a plurality of illusory driving electrodes are arranged side by side and are electrically connected to each other, a plurality of void
If driving electrodes one opposite with the third electrode for being set to the reference electrode corresponding with a plurality of driving electrodes
Side.
According to another aspect of the present disclosure, a kind of terminal device with fingerprint recognition detection function is appointed including above-mentioned
It anticipates a kind of fingerprint recognition detection components.
According to the another further aspect of the disclosure, a kind of fingerprint authentication method, applied to having push type fingerprint detection first simultaneously
Part and the terminal device for wiping stroke formula fingerprint detection element；The described method includes:
Obtain the security level of affairs to be verified；
When the security level got is the first security level, enables the push type fingerprint detection element and carry out fingerprint
Verifying；
When the security level got is the second security level, enables described wipe and draw formula fingerprint detection element progress fingerprint
Verifying；
Wherein first security level is different from second security level.
According to fingerprint recognition detection components provided by a kind of example embodiment of the disclosure and there is the fingerprint recognition
In the terminal device of detection components, formula fingerprint detection element is drawn due to being integrated with push type fingerprint detection element and wiping, thus
It both may be implemented to wipe in one fingerprint recognition detection components and draw formula fingerprint authentication, push type fingerprint authentication also may be implemented.In root
According in the another example embodiment of the disclosure, formula fingerprint detection element is drawn with wiping due to the push type fingerprint detection element and is shared
Partial electrode structure, therefore on the one hand can simplify the structure of fingerprint recognition detection components, reduce fingerprint recognition detection components
Space hold, on the other hand can with simplification of flowsheet, reduce preparation cost.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, the above and other feature and advantage of the disclosure will become
It is more obvious.
Fig. 1 is the device end for fingerprint recognition detection of the embodiment of the present invention；
Fig. 2 is a kind of block diagram of fingerprint recognition detection components in the embodiment of the present invention；
Fig. 3 is a kind of sectional view of fingerprint recognition detection components in an embodiment of the present invention；
Fig. 4 is the first structural schematic diagram of fingerprint recognition detection component in the embodiment of the present invention；
Fig. 5 is second of structural schematic diagram of fingerprint recognition detection component in the embodiment of the present invention；
Fig. 6 is the third structural schematic diagram of fingerprint recognition detection component in the embodiment of the present invention；
Fig. 7 is the 4th kind of structural schematic diagram of fingerprint recognition detection component in the embodiment of the present invention；
Fig. 8 is the flow chart of fingerprint authentication method in the embodiment of the present invention.
Description of symbols:
3,3 ' fingerprint recognition detection components
7 protective layers
30 driving circuits
31 third electrodes
32 second electrodes
33 reference electrodes
34 illusory driving electrodes
35 first detector gaps
36 third detector gaps
37 difference filters
38 difference amplifiers
39 conducting wires
40 first electrodes
41 connection electrodes
42 second detector gaps
H finger glide direction
D distance
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the disclosure will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus the detailed description that will omit them.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In example.In the following description, many details are provided to provide and fully understand to embodiment of the disclosure.However,
It will be appreciated by persons skilled in the art that can be with technical solution of the disclosure without one in the specific detail or more
It is more, or can be using other methods, constituent element, material etc..In other cases, be not shown in detail or describe known features,
Material or operation are to avoid fuzzy all aspects of this disclosure.
Fig. 1 shows the device end for having fingerprint recognition detection components according to example embodiment.Fingerprint recognition detection group
Part can be located at the region non-display area S therein, can also be set to the display area on the region S.
Fig. 2 is according to the structural schematic diagram of the fingerprint recognition detection components of example embodiment, mainly includes push type
Fingerprint detection element 3b, it wipes and draws formula fingerprint detection element 3a, security level acquiring unit 3c and verification mode switch unit 3d.
Wherein, wiping stroke formula fingerprint detection element 3a can obtain user's during user wipes draw on it line by line
Finger print information is finally combined into complete finger print information.Formula fingerprint detection element 3a acquisition user fingerprints information is drawn due to wiping
Area be that its detection width and user wipe the product for drawing length, therefore can obtain finger print information abundant.In this example embodiment party
In formula, the detection width for wiping stroke formula fingerprint detection element 3a can be more than or equal to the push type fingerprint detection element
The detection width of 3b.Certainly, it is not limited thereto in this example embodiment.Further, since the finger print information obtained is abundant, because
This wipes a stroke formula fingerprint detection element 3a and can be verified by the way of comparing characteristic point, compares without image.
Push type fingerprint detection element 3b can be during user presses on it, and disposable or progressive scan obtains
The finger print information of user, without the mobile finger of user.The area of push type fingerprint detection element 3b acquisition user fingerprints information
No more than the area of push type fingerprint detection element 3b, in this way, the finger print information that push type fingerprint detection element 3b is obtained may
It is less, accordingly, it is possible to can not be verified by the way of comparing characteristic point, and image is needed to compare, needs more to calculate
Time.
Security level acquiring unit 3c is used to obtain the security level of affairs to be verified；Verification mode switch unit 3d is used for
When the security level got is the first security level, enables the push type fingerprint detection element 3b and carry out fingerprint authentication；
And when the security level got is the second security level, enables described wipe and draw formula fingerprint detection element 3a progress fingerprint inspection
Card；Wherein first security level is different from second security level.
In above-mentioned fingerprint recognition detection components, the inspection of formula fingerprint is drawn due to being integrated with push type fingerprint detection element 3b and wiping
Element 3a is surveyed, and is provided with security level acquiring unit 3c and verification mode switch unit 3d, it so on the one hand can be one
It both may be implemented to wipe in a fingerprint recognition detection components and draw formula fingerprint authentication, push type fingerprint authentication, another party also may be implemented
Face can provide different fingerprint authentication modes according to different security levels.
Further, it includes multiple electrodes that a formula fingerprint detection element is drawn in the push type fingerprint detection element and wiping, such as
It may include driving electrodes and induction electrode etc.；In a kind of example embodiment of the disclosure, in the multiple electrode
Partial electrode by the push type fingerprint detection element and wipe draw a formula fingerprint detection element share.Such as common drive electrode or
Person shares induction electrode etc..A formula fingerprint detection element is drawn due to the push type fingerprint detection element and wiping and has shared part electricity
Road, therefore on the one hand can simplify the structure of fingerprint recognition detection components, reduce the volume of fingerprint recognition detection components, another party
Face can reduce preparation cost with simplification of flowsheet.
Above-mentioned fingerprint recognition detection components 3 are further detailed with an example embodiment below.
As shown in Fig. 3-Fig. 7, the fingerprint recognition detection components 3 in this example embodiment include push type fingerprint simultaneously
A formula fingerprint detection element is drawn in detecting element and wiping.In addition to this can also include protective layer 7, lead, fingerprint recognition chip and
The other structures such as main circuit board.For example:
As shown in Figure 4, in this example embodiment, the push type fingerprint detection element includes by multiple first electrodes
40 and the line-column matrix that forms of multiple second electrodes 32, every row includes multiple first electrodes 40 or multiple second electrodes 32, often
Column may make up including adjacent pair first electrode in multiple first electrodes 40 and second electrode 32 and each column and second electrode
One basic capacitor, each capacitor are a simple fingerprint identification unit.All push type fingerprint recognition lists
Variable matrix distribution.In each column of the line-column matrix, the first electrode 40 of each fingerprint identification unit is electrically connected to each other；The ranks
In the row that matrix is made of second electrode 40, the second electrode 40 is electrically connected to each other.
The induction electrode that the first electrode 40 can be used as push type fingerprint detection element can also be used as push type fingerprint
The driving electrodes of detecting element.In this example embodiment, the first electrode 40 is used as the sense of push type fingerprint detection element
Answer electrode.Correspondingly, the driving electrodes of the push type fingerprint detection element are the second electrode 32.Each first electrode
40 form the second detector gap 42 between adjacent second electrode 32 respectively.
It further, can be big if each first electrode 40 and second electrode 32 are connect with a lead respectively
The complexity of amplitude increase circuit；Therefore, in this example embodiment, electricity is connected between each column first electrode 40
Pole 41 is connected, and last same row first electrode 40 is connected to a lead.The first electrode 40 and company in each column
Receiving electrode 41 can be an integral structure or be independent respectively structure.Likewise, second electrode 32 described in every a line it
Between connect, be finally connected to a lead with a line second electrode 32.It is described in every a line in this example embodiment
Second electrode 32 can be an integral structure, and certainly in other example embodiments, can also be independent structure respectively.
There are Chong Die region between the row constituted due to above-mentioned connection electrode 41 with by second electrode 32, in institute
It states and is provided with insulating layer between the row being made of second electrode 32 part be overlapped with the connection electrode 41, to realize first
Electrical isolation between electrode 40 and the row being made of second electrode 32.The insulating layer may include silica or organic insulation
Material etc..In specific implementation, it can be the row being made of second electrode 32 on the connection electrode 41, it can also
To be the row being made of second electrode 32 under the connection electrode 41, in this example embodiment not as
Limit.
Due to the driving electrodes (second electrode 32) of a fingerprint identification unit on column direction and another fingerprint recognition list
The induction electrode (first electrode 40) of member is adjacent, it is thus possible to cause shadow to the induction electrode of another fingerprint identification unit
It rings, the signal for being difficult to read from corresponding induction electrode column is caused accurately to judge fingerprint image.This problem can be by making column side
The half of adjacent capacitance type fingerprint recognition unit centre distance D is greater than above-mentioned second detector gap 42 and is resolved upwards；
As shown in Figure 5, even the sensing element of a fingerprint identification unit is relatively distant from the sensing element of other fingerprint identification units.
In addition to this, the above problem can also be as shown in Figure 6, by the way that first electrode 40 described in every two row is set to two rows
It is solved between the second electrode 32.This is because the first electrode 40 of each fingerprint identification unit and adjacent fingerprint identify
The first electrode 40 of unit is adjacent, and second electrode 32 is adjacent with the second electrode 32 of another adjacent fingerprint recognition unit.In this way, by
First electrode 40 in each fingerprint identification unit is only adjacent with the second electrode 32 in this unit, without with another second
Electrode 32 is adjacent, and therefore, the first electrode 40 and second electrode 32 that will not be led to the problem of in different units are interfered, and is conducive to essence
Determine that position generates the unit of fingerprint image.
As shown in Fig. 4-Fig. 7, described wipe draws formula fingerprint detection element and the shared institute of the push type fingerprint detection element
State the row being made of second electrode 32；It is described wipe draw a formula fingerprint detection element further include be vertically arranged (certainly, can also Cheng Te
Fixed angle) third electrode 31.In this example embodiment, third electrode 31, which may be used as wiping, draws formula fingerprint detection element
Induction electrode is specifically as follows a strip shaped electric poles.It may be used as wiping by the row that second electrode 32 is constituted and draw formula fingerprint detection member
The driving electrodes of part.Each row being made of second electrode 32 is opposite to be formed at interval with the third electrode 31 respectively
Multiple first detector gaps 35.Each row being made of second electrode 32 and the third electrode 31 may make up a basic capacitor
Device, each capacitor are a simple fingerprint identification unit.
Although the multiple electrodes of fingerprint recognition detection components 3 shown in Fig. 4-Fig. 6 provide satisfied performance, but its
In wiping draw formula fingerprint detection element vulnerable to parasitic couplings and by human body aggregation noise and come from the first detector gap
The influence for the interference of finger ridge outside 35 coupled by the major part of finger.In order to optimize the accuracy of fingerprint recognition,
The coupled interference of the finger ridge part outside the first detector gap 35, i.e. elimination differential noise are eliminated, is shown in FIG. 6 and changes
The multiple electrodes of good fingerprint recognition detection components 3 '.
Identically with Fig. 4-Fig. 6, it includes multiple being made of second electrode 32 that a formula fingerprint detection element is drawn in the wiping in Fig. 7
Capable and third electrode 31.It is substantially parallel to each other by the row that second electrode 32 is constituted, and is connected to driving circuit 30.Third electricity
Pole 31 is arranged substantially perpendicular to the row being made of second electrode 32.The row being each made of second electrode 32 passes through the first detection
35 self-test drafting board of gap is spaced apart.Therefore, the multiple electrodes of fingerprint recognition detection components 3 ' include positioned at each by second electrode
Linearly aligned first detector gap 35 between 32 rows and third electrode 31 constituted.Driving circuit 30 is with driving signal sequence
Motivate the row being made of second electrode 32 in ground.
Wipe draw formula fingerprint detection element can also include reference electrode 33 and a plurality of illusory driving electrodes 34 (referring to Fig. 7),
Reference electrode 33 is oppositely arranged with third electrode 31 and being located at third electrode 31 with multiple row phases being made of second electrode 32
Anti- side.A plurality of illusory driving electrodes 34 are arranged side by side and are electrically connected to each other, and a plurality of illusory driving electrodes 34 are with multiple by the
The row that two electrodes 32 are constituted is arranged in correspondence in the side opposite with third electrode 31 of reference electrode 33.
Wiping and drawing formula fingerprint detection element further includes that can separate substantially parallel to third electrode 31 and with third electrode 31
The reference electrode 33 opened.Reference electrode 33 is located at the side of the opposite third electrode 31 of the row that constitutes with by second electrode 32, and
Thus separated by the distance bigger than third electrode 31 with the row being made of second electrode 32.Reference electrode 33 should pass through one
Section distance is in the ranks separated with what is be made of second electrode 32, this distance, which is enough to eliminate for common-mode noise, provides noise and parasitic couplings
With reference to.In some embodiments, reference electrode 33 and third electrode 31 can have equal length and width, and can be with
Abreast it is arranged in parallel.Reference electrode 33 is similar to third electrode 31 and senses ridge valley signal like that, but its substantial intensity subtracts
It is weak.Because reference electrode 33 is closely spaced with third electrode 31 and has similar size, two electrodes are produced substantially
Equal noise and parasitic signal.It produces and senses from the signal subtracted in the signal on reference electrode 33 on third electrode 31
Signal between the proportional ridge valley signal of difference, due to the relative spacing of two electrodes in the first detector gap 35,
This is significant.But the noise and parasitic signal of equal coupling can be eliminated and subtracting the signal on two electrodes.
Third electrode 31 and reference electrode 33 pass through difference filter 37 and are coupled to difference amplifier 38.In particular, third is electric
Pole 31 can be coupled to the positive input of difference amplifier 38 by difference filter 37, and reference electrode 33 can pass through difference
Filter 37 is coupled to the reversed input of difference amplifier 38.Difference amplifier 38 is by electronically subtracting 31 He of third electrode
Signal on reference electrode 33, so that noise and parasitic signal are eliminated.
It wipes and draws a formula fingerprint detection element and can also include and the illusory driving circuit 30 at interval of reference electrode 33.Such as Fig. 6
Shown in, illusory driving circuit 30 may include substantial parallel illusory driving electrodes 34, vertically with reference electrode 33
It places and is spaced apart by third detector gap 36 with reference electrode 33.Parallel illusory driving electrodes 34 are electrically connected mutually by conducting wire 39
It connects, and driving circuit 30 is connected to by conducting wire 39.In some embodiments, relative to the parallel illusory of reference electrode 33
Arrangement of the arrangement matching of driving electrodes 34 relative to the row of third electrode 31 being made of second electrode 32.Therefore, parallel empty
If the size of spacing and third detector gap 36 between the width of driving electrodes 34, parallel illusory driving electrodes 34 can divide
Spacing and the first detector gap not between the width for the row being made of second electrode 32, the row being made of second electrode 32
35 size is identical.
Illusory driving circuit 30 can be connected to reference potential during fingerprint image senses, such as be grounded.Therefore, referring to
Any instant of time of print image sensing, one in the row being made of second electrode 32 can be motivated by driving signal, and
The remaining row being made of second electrode 32 is coupled to reference potential, such as is grounded.Have for wiping a stroke formula fingerprint detection element
The example of a row being made of second electrode 32, in any given time, in addition to one in a row being made of second electrode 32
All rows being made of second electrode 32 other than a are connected to ground connection, and any given time during image sensing,
All parallel illusory driving electrodes 34 of illusory driving circuit 30 are connected to ground connection.Noise using the arrangement, on earth conductor
It is coupled substantially equally to third electrode 31 and reference electrode 33.The noise of coupling is subtracted by difference amplifier 38, and
To be eliminated.Fingerprint image signal of concern is detected between third electrode 31 and reference electrode 33, and not poor
Amplifier 38 is divided to eliminate.In the present embodiment, third electrode 31, the row being made of second electrode 32, reference electrode 33 and illusory drive
Moving electrode 34 may be by traditional deposition, etching and photoetching technique and be formed.
Generally, the size of the first detector gap 35 is less than the ridge spacing of typical fingerprint, and generally in 25 to 50 μm of model
In enclosing.In the present embodiment, the pitch between the adjacent row being made of second electrode 32 is equal to each other and in 50 to 60 μ m
Interior, the width for the row being made of second electrode 32 is equal to each other and in 20 to 45 μ m, the size of the first detector gap 35
It is equal to each other and in 20 to 40 μ ms.
It wipes in an example for drawing formula fingerprint detection element, the row being made of second electrode 32 has the width of 25 μm (micron)
Degree, and the spacing between the adjacent row being made of second electrode 32 is 25 μm.The size of first detector gap 35 is 25 μm.
Spacing between third electrode 31 and reference electrode 33 is 25 μm.The width of the parallel illusory driving electrodes 34 of illusory driving circuit 30
The spacing spent between 25 μm and adjacent illusory driving electrodes 34 is 25 μm.The size of third detector gap 36 is 32 μm.
Here process parameter is presented merely as illustrative, and is not intended to limit about the scope of the present invention.
Above-mentioned first electrode 40, second electrode 32, the material of third electrode 31 and connection electrode 41 can be identical,
It can be different.The material for forming first electrode 40, second electrode 32, third electrode 31 and connection electrode 41 can be selected from ITO (oxygen
Change indium tin) or metal simple-substance particle such as gold, silver, copper, zinc, the one or more of aluminium, metal alloy conductive material, graphite
Alkene, carbon nano-tube material, nanometer conductive material such as nano silver etc., but the present disclosure is not limited thereto.
According to an example embodiment, first electrode 40, second electrode 32 and third electrode 31 may include conductive mesh
Lattice.It by using conductive grid, reduces costs, but still can reach the good result of fingerprint recognition.In addition, fingerprint detection identifies
Component can also include lead (not shown), draw formula fingerprint detection element with wiping and push type fingerprint detection element is connect, be used for
Fingerprint detection element is connected to external circuit, such as fingerprint recognition circuit.Lead equally may include conductive grid.
Further, a kind of terminal device with fingerprint recognition detection function is additionally provided in this example embodiment,
The terminal device has a display screen and any one above-mentioned fingerprint recognition detection components, which can be touch screen
It may be non-touch-control screen.By the fingerprint detection recognizer component in this example embodiment, which both be may be implemented
It wipes and draws formula fingerprint fingerprint recognition, push type fingerprint recognition also may be implemented.It is easily understood that the finger in this example embodiment
Line recognition detection component can be applied equally to the terminal device without display screen, therefore be not limited thereto.
Formula fingerprint fingerprint identification technology and the two different fingerprint recognitions of push type fingerprint identification technology are drawn in view of having to wipe
Mode.Therefore, a kind of fingerprint authentication method is also provided in this example embodiment accordingly, which is applied to upper
It states while there is the terminal device wiped and draw formula fingerprint detection element and push type fingerprint detection element；As shown in Figure 8, main
Comprising steps of
S11. the security level of affairs to be verified is obtained；
S12-S13. it when the security level got is the first security level, enables described wipe and draws formula fingerprint detection element
Carry out fingerprint authentication；
S14-S15. when the security level got is the second security level, the push type fingerprint detection element is enabled
Carry out fingerprint authentication；
Wherein first security level is different from second security level.
By taking mobile-phone payment as an example, for user during carrying out mobile-phone payment, after inputting number of deals, system judges this friendship
It is easily small amount payment affairs or wholesale payment transaction.When judging this transaction for small amount payment affairs, then Current transaction is obtained
Security level be the first security level, at this time can by above-mentioned control unit enable it is described wipe draw formula fingerprint detection element into
Row fingerprint authentication.When judging this transaction for wholesale payment transaction, then the security level for obtaining Current transaction is the second safety level
Not, the push type fingerprint detection element can be enabled by above-mentioned control unit at this time and carries out fingerprint authentication.
It is easily understood that the security level of the affairs to be verified in this example embodiment can according to need and
It presets；For example, the security level for presetting the affairs such as unlock starting-up interface, starting camera is the first security level, in advance
First setting opening photograph album, the security level opened specified folder and check the affairs such as short message record are second security level etc.
Deng.
From the foregoing, it will be observed that carrying out, security level is lower by fingerprint authentication method provided by this example embodiment
When transaction validation, the completion of formula fingerprint detection element can be drawn by wiping；In the higher transaction validation of progress security level, Ke Yiyou
Push type fingerprint detection element is completed.
The disclosure is described by above-mentioned related embodiment, however above-described embodiment is only the example for implementing the disclosure.
It must be noted that the embodiment disclosed is not limiting as the scope of the present disclosure.On the contrary, do not depart from the disclosure spirit and
It is changed and retouched made by range, belongs to the scope of patent protection of the disclosure.
Claims (13)
1. a kind of fingerprint recognition detection components, it is characterised in that:
Push type fingerprint detection element；
It wipes and draws formula fingerprint detection element；
Security level acquiring unit, for obtaining the security level of affairs to be verified；
Verification mode switch unit, for enabling the push type and referring to when the security level got is the first security level
Line detecting element carries out fingerprint authentication；And when the security level got is the second security level, enables the wiping and draw a formula
Fingerprint detection element carries out fingerprint authentication；
Wherein first security level is different from second security level；
It includes multiple electrodes that a formula fingerprint detection element is drawn in the push type fingerprint detection element and wiping；
Partial electrode in the multiple electrode is shared by the push type fingerprint detection element with a stroke formula fingerprint detection element is wiped；
Described wipe draws detection of the detection width of formula fingerprint detection element more than or equal to the push type fingerprint detection element
Width.
2. fingerprint recognition detection components according to claim 1, which is characterized in that the push type fingerprint detection element packet
It includes:
The line-column matrix being made of plurality of first electrodes and the plurality of second electrodes, every row include multiple first electrodes or multiple
Two electrodes, each column include adjacent pair first electrode and second electrode group in multiple first electrodes and second electrode and each column
At a push type fingerprint identification unit；
In each column of the line-column matrix, the first electrode of each fingerprint identification unit is electrically connected to each other；
In the row that the line-column matrix is made of second electrode, the second electrode is electrically connected to each other；
A formula fingerprint detection element is drawn in the wiping
The row being made of second electrode；
Third electrode, with it is each it is described be made of second electrode it is separatedly opposite to form multiple first detector gaps in the ranks.
3. fingerprint recognition detection components according to claim 2, which is characterized in that the row that is made of first electrode and by
The alternate setting of row that two electrodes are constituted；
The second detector gap is formed between first electrode and second electrode in each push type fingerprint identification unit；Described
Half of two detector gaps no more than two neighboring fingerprint identification unit centre distance in a column.
4. fingerprint recognition detection components according to claim 2, which is characterized in that in each fingerprint identification unit column,
The first electrode of adjacent fingerprint recognition unit and the setting order of second electrode are opposite.
5. fingerprint recognition detection components according to claim 2, which is characterized in that quilt between each column first electrode
Connection electrode series connection；
The row being made of second electrode is provided with insulating layer between the part Chong Die with the connection electrode.
6. fingerprint recognition detection components according to claim 5, which is characterized in that the insulating layer include silica or
Organic insulating material.
7. fingerprint recognition detection components according to claim 2, which is characterized in that the first electrode is the push type
One of the induction electrode of fingerprint detection element or driving electrodes, the second electrode are the sense of the push type fingerprint detection element
Answer the another of electrode or driving electrodes；
The second electrode is the driving electrodes wiped and draw formula fingerprint detection element, and the third electrode is that the formula of drawing of wiping refers to
The induction electrode of line detecting element.
8. fingerprint recognition detection components according to claim 2, which is characterized in that the first electrode, second electrode,
Three electrodes and connection electrode include metallic particles, graphene, carbon nanotube or conductive polymer material.
9. fingerprint recognition detection components according to claim 2, which is characterized in that described wipe draws formula fingerprint detection element also
Include:
Reference electrode, is oppositely arranged with the third electrode and is located at the multiple of the third electrode and described be made of second electrode
The opposite side of row.
10. fingerprint recognition detection components according to claim 9, which is characterized in that described wipe draws formula fingerprint detection element
Further include:
A plurality of illusory driving electrodes, a plurality of illusory driving electrodes are arranged side by side and are electrically connected to each other, a plurality of illusory drive
Moving electrode is corresponding with multiple rows being made of the second electrode being set to the reference electrode with the third electrode phase
Anti- side.
11. fingerprint recognition detection components according to claim 2, which is characterized in that the first electrode, second electrode with
And pattern at least part that third electrode is formed is made of conductive grid.
12. a kind of terminal device with fingerprint recognition detection function, including as described in any one of claim 1-11
Fingerprint recognition detection components.
13. a kind of fingerprint authentication method draws formula fingerprint detection element applied to having push type fingerprint detection element simultaneously and wiping
Terminal device；It is characterized in that, which comprises
Obtain the security level of affairs to be verified；
When the security level got is the first security level, enables the push type fingerprint detection element and carry out fingerprint inspection
Card；
When the security level got is the second security level, enables described wipe and draw formula fingerprint detection element progress fingerprint inspection
Card；
Wherein first security level is different from second security level；
It includes multiple electrodes that a formula fingerprint detection element is drawn in the push type fingerprint detection element and wiping；
Partial electrode in the multiple electrode is shared by the push type fingerprint detection element with a stroke formula fingerprint detection element is wiped.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105447436B (en) | 2014-12-19 | 2017-08-04 | 比亚迪股份有限公司 | Fingerprint recognition system and fingerprint identification method and electronic equipment |
| CN107209620B (en) * | 2015-12-15 | 2020-03-20 | 华为技术有限公司 | Electronic equipment and fingerprint identification method |
| JP6437632B2 (en) * | 2016-06-27 | 2018-12-12 | 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． | Fingerprint identification method, apparatus, program, and recording medium |
| CN106845340B (en) * | 2016-12-13 | 2021-07-23 | 华勤技术股份有限公司 | User equipment, fingerprint identification array and control method thereof |
| CN107113349B (en) * | 2017-03-16 | 2019-01-18 | 深圳市汇顶科技股份有限公司 | The method of terminal device and identification fingerprint |
| WO2018227584A1 (en) * | 2017-06-16 | 2018-12-20 | 深圳市汇顶科技股份有限公司 | Method, device, and equipment for fingerprint recognition |
| CN109426427A (en) * | 2017-08-23 | 2019-03-05 | 南昌欧菲生物识别技术有限公司 | Touch control terminal and its unlocked by fingerprint method and apparatus |
| TWI635432B (en) * | 2017-11-13 | 2018-09-11 | 晨星半導體股份有限公司 | Fingerprint sensing device and driving method of fingerprint sensor thereof |
| CN109934057A (en) * | 2017-12-15 | 2019-06-25 | 奕力科技股份有限公司 | The driving method of fingerprint acquisition apparatus and its fingerprint sensing device |
| CN114499994A (en) * | 2021-12-30 | 2022-05-13 | 科大讯飞股份有限公司 | Device fingerprint identification method and device, electronic device and medium |
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