CN204028944U - Fingerprint recognition detection components and terminal device - Google Patents
Fingerprint recognition detection components and terminal device Download PDFInfo
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- CN204028944U CN204028944U CN201420485338.6U CN201420485338U CN204028944U CN 204028944 U CN204028944 U CN 204028944U CN 201420485338 U CN201420485338 U CN 201420485338U CN 204028944 U CN204028944 U CN 204028944U
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Abstract
Present disclose provides a kind of fingerprint recognition detection components and terminal device.This fingerprint recognition detection components comprises: push type fingerprint detection element; Wipe and draw formula fingerprint detection element; Level of security acquiring unit, for obtaining the level of security of affairs to be verified; Verification mode switch unit, for when the level of security got is the first level of security, enables described push type fingerprint detection element and carries out fingerprint authentication; And when the level of security got is the second level of security, enables described wiping and draw formula fingerprint detection element and carry out fingerprint authentication; Wherein said first level of security is different from described second level of security.The disclosure both can realize wiping draws formula fingerprint authentication, also can realize push type fingerprint authentication.
Description
Technical field
The disclosure relates to fingerprint recognition field, particularly a kind of fingerprint recognition detection components and have the terminal device of fingerprint recognition measuring ability.
Background technology
Along with the widespread use of portable terminal in people's daily life, from strength to strength, and this diversified function facilitates user to the function of present portable terminal.But portable terminal, while providing more conveniences for user, carries too many personal information; if this portable terminal once lose or stolen; then these information are not owing to carrying out the protection of being correlated with, and are therefore easy to let out, make troubles to user.Therefore, portable terminal does some secret in setting seem very necessary.The current form such as portable terminal many uses password, figure realizes the cryptoguard to its terminal device.
But for the cipher mode such as password, figure, user need remember password and/or the figure of setting; In addition, in public, also there is the danger that password is revealed.And in order to improve security, often need the complexity increasing password and figure, this further increases the difficulty of user's memory undoubtedly, cause safe and easy-to-use between conflict.
Fingerprint is made up of the rough lines of finger surface skin, is the unique feature of human body, and its complexity can be provided for the enough features identified.Namely fingerprint recognition is utilize the feature of fingerprint uniqueness and stability to realize identification, and remembers without the need to user.
Capacitance type fingerprint detects recognizer component and form conducting channel on base material substrate, and when pointing with sensor contacts, the different capacitances produced by the projection of fingerprint ridge and the depression of fingerprint paddy are detected and form fingerprint pattern.
In prior art, capacitance type fingerprint recognition technology comprises wiping draws formula fingerprint fingerprint identification technology and push type fingerprint identification technology.Wipe and draw a formula fingerprint fingerprint identification technology there is the features such as cost is lower, area of detection is large, and push type fingerprint identification technology has the high but area of detection of the accuracy of identification feature such as less usually.
Utility model content
Object of the present disclosure is the terminal device providing a kind of fingerprint recognition detection components and have this fingerprint recognition detection components, draws formula fingerprint fingerprint identification function and push type fingerprint identification function for realizing wiping simultaneously.
The devices such as such as portable terminal realize fingerprint identification function.
Other characteristics of the present disclosure and advantage become obvious by by detailed description below, or the acquistion partially by practice of the present disclosure.
According to an aspect of the present disclosure, a kind of fingerprint recognition detection components:
A kind of fingerprint recognition detection components, is characterized in that:
Push type fingerprint detection element;
Wipe and draw formula fingerprint detection element;
Level of security acquiring unit, for obtaining the level of security of affairs to be verified;
Verification mode switch unit, for when the level of security got is the first level of security, enables described push type fingerprint detection element and carries out fingerprint authentication; And when the level of security got is the second level of security, enables described wiping and draw formula fingerprint detection element and carry out fingerprint authentication;
Wherein said first level of security is different from described second level of security.
In a kind of example embodiment of the present disclosure, the detection width that formula fingerprint detection element is drawn in described wiping is greater than or equal to the detection width of described push type fingerprint detection element.
In a kind of example embodiment of the present disclosure,
Described push type fingerprint detection element and wiping are drawn a formula fingerprint detection element and are comprised multiple electrode;
Partial electrode in described multiple electrode is drawn a formula fingerprint detection element by described push type fingerprint detection element and wiping and is shared.
In a kind of example embodiment of the present disclosure, described pressing fingerprint detection element comprises:
The line-column matrix be made up of multiple first electrode and multiple second electrode, its often row comprise multiple first electrode or multiple second electrode, often row comprise multiple first electrode and the second electrode and in each row, a pair adjacent first electrodes and the second electrode form a push type fingerprint identification unit;
In the often row of described line-column matrix, the first electrode of each fingerprint identification unit is electrically connected to each other;
In the row that described line-column matrix is made up of the second electrode, described second electrode is electrically connected to each other;
Described wiping is drawn formula fingerprint detection element and is comprised:
The described row be made up of the second electrode;
3rd electrode, turns up the soil relative to form multiple first detector gap with each described between-line spacing be made up of the second electrode.
In a kind of example embodiment of the present disclosure, the row be made up of the first electrode and the alternate setting of row be made up of the second electrode;
In each push type fingerprint identification unit and form the second detector gap between the first electrode and the second electrode; Described second detector gap is not more than the half of adjacent two fingerprint identification unit centre distances in row.
In a kind of example embodiment of the present disclosure, in each fingerprint identification unit row, the first electrode of adjacent fingerprint recognition unit and the second electrode to arrange order contrary.
In a kind of example embodiment of the present disclosure, between described first electrode of each row, be connected electrode series connection;
Insulation course is provided with between the part that the described row be made up of the second electrode is overlapping with described connecting electrode.
In a kind of example embodiment of the present disclosure, described insulation course comprises silicon dioxide or organic insulation.
In a kind of example embodiment of the present disclosure, described first electrode is one of the induction electrode or drive electrode of described push type fingerprint detection element, and described second electrode is another of the induction electrode of described push type fingerprint detection element or drive electrode;
Described second electrode is the drive electrode that formula fingerprint detection element is drawn in described wiping, and described 3rd electrode is the induction electrode that formula fingerprint detection element is drawn in described wiping.
In a kind of example embodiment of the present disclosure, described first electrode, the second electrode, the 3rd electrode and connecting electrode comprise metallic particles, Graphene, carbon nano-tube or conducting polymer composite.
In a kind of example embodiment of the present disclosure, described wiping is drawn formula fingerprint detection element and is also comprised:
Reference electrode, is oppositely arranged with described 3rd electrode and is positioned at the described three electrode side contrary with described multiple row be made up of the second electrode.
In a kind of example embodiment of the present disclosure, described wiping is drawn formula fingerprint detection element and is also comprised:
Many illusory drive electrodes, described many illusory drive electrodes are arranged side by side and are electrically connected to each other, the side contrary with described 3rd electrode of what described many articles of illusory drive electrodes were corresponding with described many articles of drive electrodes be arranged at described reference electrode.
According to another aspect of the present disclosure, a kind of terminal device with fingerprint recognition measuring ability, comprises any one above-mentioned fingerprint recognition detection components.
In the fingerprint recognition detection components provided according to a kind of example embodiment of the present disclosure and the terminal device with this fingerprint recognition detection components, owing to being integrated with push type fingerprint detection element and wiping a stroke formula fingerprint detection element, thus both can realize wiping a stroke formula fingerprint authentication in a fingerprint recognition detection components, also can realize push type fingerprint authentication.According in another example embodiment of the present disclosure, draw a formula fingerprint detection element due to this push type fingerprint detection element and wiping and share partial electrode structure, therefore the structure of fingerprint recognition detection components can be simplified on the one hand, reduce the space hold of fingerprint recognition detection components, all right simplification of flowsheet, reduces preparation cost on the other hand.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and further feature of the present disclosure and advantage will become more obvious.
Fig. 1 is the device end for fingerprint recognition detection of the utility model embodiment;
Fig. 2 is the block diagram of a kind of fingerprint recognition detection components in the utility model embodiment;
Fig. 3 is the sectional view of a kind of fingerprint recognition detection components in a kind of embodiment of the utility model;
Fig. 4 is the first structural representation of fingerprint recognition detection assembly in the utility model embodiment;
Fig. 5 is the second structural representation of fingerprint recognition detection assembly in the utility model embodiment;
Fig. 6 is the third structural representation of fingerprint recognition detection assembly in the utility model embodiment;
Fig. 7 is the 4th kind of structural representation of fingerprint recognition detection assembly in the utility model embodiment.
Description of reference numerals:
3,3 ' fingerprint recognition detection components
7 protective seams
30 driving circuits
31 the 3rd electrodes
32 second electrodes
33 reference electrodes
34 illusory drive electrodes
35 first detector gap
36 the 3rd detector gap
37 difference filters
38 differential amplifiers
39 wires
40 first electrodes
41 connecting electrodes
42 second detector gap
H finger sliding direction
D distance
Embodiment
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, these embodiments are provided to make the disclosure comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Reference numeral identical in the drawings represents same or similar structure, thus will omit their detailed description.
In addition, described feature, structure or characteristic can be combined in one or more embodiment in any suitable manner.In the following description, provide many details thus provide fully understanding embodiment of the present disclosure.But, one of skill in the art will appreciate that and can put into practice technical scheme of the present disclosure and not have in described specific detail one or more, or other method, constituent element, material etc. can be adopted.In other cases, known features, material or operation is not shown specifically or describes to avoid fuzzy each side of the present disclosure.
Fig. 1 illustrates the device end according to example embodiment with fingerprint recognition detection components.Fingerprint recognition detection components can be located at non-display area S region wherein, also can be located at the viewing area on S region.
Fig. 2 is the structural representation of the fingerprint recognition detection components according to example embodiment, and it mainly comprises push type fingerprint detection element 3b, wipes and draw formula fingerprint detection element 3a, level of security acquiring unit 3c and verification mode switch unit 3d.
Wherein, wiping stroke formula fingerprint detection element 3a can wipe in the process of drawing thereon user, obtains the finger print information of user line by line, is finally combined into complete finger print information.The area obtaining user fingerprints information owing to wiping stroke formula fingerprint detection element 3a is that its detection width and user's wiping stroke length are long-pending, therefore can obtain abundant finger print information.In this example embodiment, the detection width that formula fingerprint detection element 3a is drawn in described wiping can be greater than or equal to the detection width of described push type fingerprint detection element 3b.Certainly, in this example embodiment not as limit.In addition, because the finger print information obtained enriches, therefore wipe a stroke formula fingerprint detection element 3a and the mode of comparison unique point can be adopted to verify, and without the need to image ratio pair.
In the process that push type fingerprint detection element 3b can press thereon user, disposable or line by line scan and obtain the finger print information of user, and without the need to user's moveable finger.The area of push type fingerprint detection element 3b acquisition user fingerprints information is not more than the area of push type fingerprint detection element 3b, like this, the finger print information that push type fingerprint detection element 3b obtains may be less, therefore, possibly the mode of comparison unique point cannot be adopted to verify, and need image ratio pair, need more computing time.
Level of security acquiring unit 3c is for obtaining the level of security of affairs to be verified; Verification mode switch unit 3d is used for when the level of security got is the first level of security, enables described push type fingerprint detection element 3b and carries out fingerprint authentication; And when the level of security got is the second level of security, enables described wiping and draw formula fingerprint detection element 3a and carry out fingerprint authentication; Wherein said first level of security is different from described second level of security.
In above-mentioned fingerprint recognition detection components, owing to being integrated with push type fingerprint detection element 3b and wiping a stroke formula fingerprint detection element 3a, and be provided with level of security acquiring unit 3c and verification mode switch unit 3d, one side like this both can be able to realize wiping in a fingerprint recognition detection components draws formula fingerprint authentication, also can realize push type fingerprint authentication, different fingerprint authentication modes can be provided according to different level of securitys on the other hand.
Further, described push type fingerprint detection element and wiping are drawn a formula fingerprint detection element and are comprised multiple electrode, such as, can comprise drive electrode and induction electrode etc.; In a kind of example embodiment of the present disclosure, the partial electrode in described multiple electrode is drawn a formula fingerprint detection element by described push type fingerprint detection element and wiping and is shared.Such as common drive electrode or shared induction electrode etc.Draw a formula fingerprint detection element due to this push type fingerprint detection element and wiping and share partial circuit, therefore the structure of fingerprint recognition detection components can be simplified on the one hand, reduce the volume of fingerprint recognition detection components, all right simplification of flowsheet, reduces preparation cost on the other hand.
With an example embodiment, above-mentioned fingerprint recognition detection components 3 is further detailed below.
As shown in Fig. 3-Fig. 7, the fingerprint recognition detection components 3 in this example embodiment comprises push type fingerprint detection element simultaneously and wipes a stroke formula fingerprint detection element.In addition other structures such as protective seam 7, lead-in wire, fingerprint recognition chip and main circuit board can also be comprised.For example:
As shown in Figure 4, in this example embodiment, described push type fingerprint detection element comprises the line-column matrix be made up of multiple first electrode 40 and multiple second electrode 32, its often row comprise multiple first electrode 40 or multiple second electrode 32, often row comprise multiple first electrode 40 and the second electrode 32 and in each row, a pair adjacent first electrodes and the second electrode can form a basic capacitor, and each this capacitor is a simple fingerprint identification unit.All described push type fingerprint identification unit matrix distribution.In the often row of described line-column matrix, the first electrode 40 of each fingerprint identification unit is electrically connected to each other; In the row that described line-column matrix is made up of the second electrode 40, described second electrode 40 is electrically connected to each other.
This first electrode 40 can also can as the drive electrode of push type fingerprint detection element as the induction electrode of push type fingerprint detection element.In this example embodiment, described first electrode 40 is used as the induction electrode of push type fingerprint detection element.Accordingly, the drive electrode of described push type fingerprint detection element is described second electrode 32.Each described first electrode 40 forms the second detector gap 42 respectively and between the second adjacent electrode 32.
Further, be connected if the first electrode 40 described in each and the second electrode 32 go between with one respectively, then can increase considerably the complexity of circuit; Therefore, in this example embodiment, be connected electrode 41 between described first electrode 40 of each row and connect, last same row first electrode 40 is connected to one and goes between.Described first electrode 40 in each row and connecting electrode 41 also can be respectively independently structure for integral type structure.Same, connect between the second electrode 32 described in every a line, be finally connected to one with a line second electrode 32 and go between.In this example embodiment, described second electrode 32 in every a line can be integral type structure, and certainly in other example embodiment, it also can be respectively independently structure.
Overlapping region is there is due between the row that above-mentioned connecting electrode 41 is formed with by the second electrode 32, therefore, between the part that the described row be made up of the second electrode 32 is overlapping with described connecting electrode 41, be provided with insulation course, thus realize the first electrode 40 and electrical isolation between the row be made up of the second electrode 32.This insulation course can comprise silicon dioxide or organic insulation etc.In concrete enforcement, can be the described row be made up of the second electrode 32 on described connecting electrode 41, also can be the described row be made up of the second electrode 32 under described connecting electrode 41, not as limit in this example embodiment.
Because the drive electrode (the second electrode 32) of a fingerprint identification unit on column direction is adjacent with the induction electrode (the first electrode 40) of another fingerprint identification unit, therefore may impact the induction electrode of this another fingerprint identification unit, cause the signal being difficult to read from corresponding induction electrode row accurately to judge fingerprint image.This problem is resolved by making the half of capacitance type fingerprint recognition unit centre distance D adjacent on column direction be greater than above-mentioned second detector gap 42; As shown in Figure 5, even the sensing element of a fingerprint identification unit is relatively away from the sensing element of other fingerprint identification unit.
In addition, the problems referred to above can also as shown in Figure 6, solve between the second electrode 32 by being located at described in two row by the first electrode 40 described in every two row.This is because the first electrode 40 of each fingerprint identification unit is adjacent with the first electrode 40 of adjacent fingerprint recognition unit, and the second electrode 32 is adjacent with the second electrode 32 of another adjacent fingerprint recognition unit.Like this, because the first electrode 40 in each fingerprint identification unit is only adjacent with the second electrode 32 in this unit, and can not be adjacent with another second electrode 32, therefore, the problem of the first electrode 40 in different units and the interference of the second electrode 32 can not be produced, be conducive to accurately location and produce the unit of fingerprint image.
As shown in Fig. 4-Fig. 7, formula fingerprint detection element is drawn in described wiping and described push type fingerprint detection element shares the described row be made up of the second electrode 32; The 3rd electrode 31 that formula fingerprint detection element also comprises vertical setting (certainly, it also can become specific angle) is drawn in described wiping.In this example embodiment, the 3rd electrode 31 can be used as to wipe the induction electrode drawing formula fingerprint detection element, and it is specifically as follows a strip shaped electric poles.The row be made up of the second electrode 32 can be used as to wipe the drive electrode drawing formula fingerprint detection element.Each described row be made up of the second electrode 32 is relative to form multiple first detector gap 35 at interval with described 3rd electrode 31 respectively.Each row be made up of the second electrode 32 and described 3rd electrode 31 can form a basic capacitor, and each this capacitor is a simple fingerprint identification unit.
Although multiple electrodes of the fingerprint recognition detection components 3 shown in Fig. 4-Fig. 6 provide satisfied performance, wiping is wherein drawn formula fingerprint detection element and is subject to intercoupling and the noise assembled by human body and the impact of interference that is coupled from the major part by finger of the finger ridge outside the first detector gap 35.In order to optimize the accuracy of fingerprint recognition, eliminating the coupled interference from the finger ridge part outside the first detector gap 35, namely eliminating differential noise, figure 6 illustrates multiple electrodes of the fingerprint recognition detection components 3 ' of improvement.
Identically with Fig. 4-Fig. 6, the wiping in Fig. 7 is drawn formula fingerprint detection element and is comprised multiple row of being made up of the second electrode 32 and the 3rd electrode 31.The row be made up of the second electrode 32 is parallel to each other in fact, and is connected to driving circuit 30.3rd electrode 31 is substantially perpendicular to the row be made up of the second electrode 32 and arranges.Each row be made up of the second electrode 32 is spaced apart by the first detector gap 35 self-inspection drafting board.Therefore, multiple electrodes of fingerprint recognition detection components 3 ' comprise linearly aligned first detector gap 35 between row and the 3rd electrode 31 be made up of the second electrode 32 at each.Driving circuit 30 sequentially encourages the row be made up of the second electrode 32 with drive singal.
Wipe a stroke formula fingerprint detection element and can also comprise reference electrode 33 and many illusory drive electrodes 34 (see Fig. 7), reference electrode 33 is oppositely arranged with the 3rd electrode 31 and is positioned at the side contrary with multiple row be made up of the second electrode 32 of the 3rd electrode 31.Many illusory drive electrode 34 is arranged side by side and is electrically connected to each other, and many articles of illusory drive electrodes 34 and multiple row be made up of the second electrode 32 are arranged on the side contrary with the 3rd electrode 31 of reference electrode 33 accordingly.
Wipe and draw formula fingerprint detection element and also comprise the reference electrode 33 can separated substantially parallel to the 3rd electrode 31 and with the 3rd electrode 31.Reference electrode 33 is positioned at the side of the 3rd relative electrode 31 of the row that forms with by the second electrode 32, and is thus separated by the distance larger than the 3rd electrode 31 and the row be made up of the second electrode 32.Reference electrode 33 should by a segment distance and in the ranks separating of being made up of the second electrode 32, and this distance is enough to eliminate for common-mode noise provide noise and parasitic coupling reference.In some embodiments, reference electrode 33 and the 3rd electrode 31 can have equal length and width, and can be arranged in parallel abreast.Reference electrode 33 is similar to the 3rd electrode 31 and senses ridge/paddy signal like that, but its remitted its fury in fact.Because reference electrode 33 and the 3rd electrode 31 closely interval and have similar size, two electrodes create roughly equal noise and spur signal.The signal deducted from the signal reference electrode 33 on the 3rd electrode 31 creates the proportional ridge/paddy signal of difference between the signal sensed, and due to the relative spacing from two electrodes in the first detector gap 35, this is significant.But the noise of equal coupling and spur signal can be eliminated by the signal deducted on two electrodes.
3rd electrode 31 and reference electrode 33 are coupled to differential amplifier 38 by difference filter 37.Especially, the 3rd electrode 31 can be coupled to the forward input of differential amplifier 38 by difference filter 37, and reference electrode 33 can be coupled to the reverse input of differential amplifier 38 by difference filter 37.Differential amplifier 38 deducts the signal on the 3rd electrode 31 and reference electrode 33 by electronics mode, and noise and spur signal are eliminated.
Wipe a stroke formula fingerprint detection element can also comprise and reference electrode 33 illusory driving circuit 30 at interval.As shown in Figure 6, illusory driving circuit 30 can comprise substantial parallel illusory drive electrode 34, and itself and reference electrode 33 are placed vertically and spaced apart by the 3rd detector gap 36 and reference electrode 33.Parallel illusory drive electrode 34 is electrically connected mutually by wire 39, and is connected to driving circuit 30 by wire 39.In some embodiments, the arrangement relative to the row be made up of the second electrode 32 of the 3rd electrode 31 is mated relative to the arrangement of the parallel illusory drive electrode 34 of reference electrode 33.Therefore, the spacing between the width of the row that the spacing between the width of parallel illusory drive electrode 34, parallel illusory drive electrode 34 and the size of the 3rd detector gap 36 can be formed with by the second electrode 32 respectively, the row that is made up of the second electrode 32 is identical with the size of the first detector gap 35.
Illusory driving circuit 30 can be connected to reference potential at fingerprint image sensing, such as ground connection.Therefore, in any time moment of fingerprint image sensing, one in the row be made up of the second electrode 32 can be encouraged by drive singal, and the remaining row be made up of the second electrode 32 is coupled to reference potential, such as ground connection.The example that formula fingerprint detection element has the individual row be made up of the second electrode 32 is drawn for wiping, at any given time, all row be made up of the second electrode 32 except in the individual row be made up of the second electrode 32 are connected to ground connection, and any given time during image sensing, all parallel illusory drive electrode 34 of illusory driving circuit 30 is connected to ground connection.Utilize this layout, the noise on earth conductor is in fact equivalently coupled to the 3rd electrode 31 and reference electrode 33.The noise of coupling is subtracted by differential amplifier 38, and thus is eliminated.The fingerprint image signal be concerned about is detected between the 3rd electrode 31 and reference electrode 33, and is not eliminated by differential amplifier 38.In the present embodiment, the 3rd electrode 31, the row be made up of the second electrode 32, reference electrode 33 and illusory drive electrode 34 can utilize traditional deposition, etching and photoetching technique to be formed.
Generally, the size of the first detector gap 35 is less than the ridge spacing of typical fingerprint, and general in the scope of 25 to 50 μm.In the present embodiment, pitch between the adjacent row be made up of the second electrode 32 is equal to each other and within the scope of 50 to 60 μm, the width of the row be made up of the second electrode 32 is equal to each other and within the scope of 20 to 45 μm, and the size of the first detector gap 35 is equal to each other and within the scope of 20 to 40 μm.
Wipe in the example drawing formula fingerprint detection element, the row be made up of the second electrode 32 has the width of 25 μm (microns), and the spacing between the adjacent row be made up of the second electrode 32 is 25 μm.The size of the first detector gap 35 is 25 μm.Spacing between 3rd electrode 31 and reference electrode 33 is 25 μm.The width of the parallel illusory drive electrode 34 of illusory driving circuit 30 is 25 μm and spacing between adjacent illusory drive electrode 34 is 25 μm.The size of the 3rd detector gap 36 is 32 μm.Here process parameter provides as just example, does not limit about scope of the present utility model.
The material of above-mentioned the first electrode 40, second electrode 32, the 3rd electrode 31 and connecting electrode 41 can be identical, also can be different.The material forming the first electrode 40, second electrode 32, the 3rd electrode 31 and connecting electrode 41 can be selected from ITO (tin indium oxide) or metal simple-substance particle as gold, silver, copper, zinc, aluminium one or more, metal alloy conductive material, Graphene, carbon nano-tube material, nanometer conductive material as Nano Silver etc., but the disclosure is not limited thereto.
According to an example embodiment, the first electrode 40, second electrode 32 and the 3rd electrode 31 can comprise conductive grid.By adopting conductive grid, reducing cost, but still the good result of fingerprint recognition can be reached.In addition, fingerprint detection recognizer component can also comprise lead-in wire (not shown), is connected with wiping stroke formula fingerprint detection element and push type fingerprint detection element, for fingerprint detection element is connected to external circuit, and such as fingerprint recognition circuit.Lead-in wire can comprise conductive grid equally.
Further, a kind of terminal device with fingerprint recognition measuring ability is additionally provided in this example embodiment, this terminal device has a display screen and any one above-mentioned fingerprint recognition detection components, and this display screen can be that touch screen also can shield for non-touch-control.Fingerprint detection recognizer component in this example embodiment, this terminal device both can realize wiping draws formula fingerprint fingerprint recognition, also can realize push type fingerprint recognition.It is easily understood that the fingerprint recognition detection components in this example embodiment can be applied to the terminal device without display screen equally, therefore not as limit.
The disclosure is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present disclosure.Must it is noted that the embodiment disclosed limit the scope of the present disclosure.On the contrary, not departing from the change and retouching done in spirit and scope of the present disclosure, scope of patent protection of the present disclosure is all belonged to.
Claims (14)
1. a fingerprint recognition detection components, is characterized in that:
Push type fingerprint detection element;
Wipe and draw formula fingerprint detection element;
Level of security acquiring unit, for obtaining the level of security of affairs to be verified;
Verification mode switch unit, for when the level of security got is the first level of security, enables described push type fingerprint detection element and carries out fingerprint authentication; And when the level of security got is the second level of security, enables described wiping and draw formula fingerprint detection element and carry out fingerprint authentication;
Wherein said first level of security is different from described second level of security.
2. fingerprint recognition detection components according to claim 1, is characterized in that, the detection width that formula fingerprint detection element is drawn in described wiping is greater than or equal to the detection width of described push type fingerprint detection element.
3. fingerprint recognition detection components according to claim 1, is characterized in that:
Described push type fingerprint detection element and wiping are drawn a formula fingerprint detection element and are comprised multiple electrode;
Partial electrode in described multiple electrode is drawn a formula fingerprint detection element by described push type fingerprint detection element and wiping and is shared.
4. fingerprint recognition detection components according to claim 3, is characterized in that, described pressing fingerprint detection element comprises:
The line-column matrix be made up of multiple first electrode and multiple second electrode, its often row comprise multiple first electrode or multiple second electrode, often row comprise multiple first electrode and the second electrode and in each row, a pair adjacent first electrodes and the second electrode form a push type fingerprint identification unit;
In the often row of described line-column matrix, the first electrode of each fingerprint identification unit is electrically connected to each other;
In the row that described line-column matrix is made up of the second electrode, described second electrode is electrically connected to each other;
Described wiping is drawn formula fingerprint detection element and is comprised:
The described row be made up of the second electrode;
3rd electrode, turns up the soil relative to form multiple first detector gap with each described between-line spacing be made up of the second electrode.
5. fingerprint recognition detection components according to claim 4, is characterized in that, the row be made up of the first electrode and the alternate setting of row be made up of the second electrode;
In each push type fingerprint identification unit and form the second detector gap between the first electrode and the second electrode; Described second detector gap is not more than the half of adjacent two fingerprint identification unit centre distances in row.
6. fingerprint recognition detection components according to claim 4, is characterized in that, in each fingerprint identification unit row, the first electrode of adjacent fingerprint recognition unit and the second electrode to arrange order contrary.
7. fingerprint recognition detection components according to claim 4, is characterized in that, is connected electrode series connection between described first electrode of each row;
Insulation course is provided with between the part that the described row be made up of the second electrode is overlapping with described connecting electrode.
8. fingerprint recognition detection components according to claim 7, is characterized in that, described insulation course comprises silicon dioxide or organic insulation.
9. fingerprint recognition detection components according to claim 4, it is characterized in that, described first electrode is one of the induction electrode or drive electrode of described push type fingerprint detection element, and described second electrode is another of the induction electrode of described push type fingerprint detection element or drive electrode;
Described second electrode is the drive electrode that formula fingerprint detection element is drawn in described wiping, and described 3rd electrode is the induction electrode that formula fingerprint detection element is drawn in described wiping.
10. fingerprint recognition detection components according to claim 4, is characterized in that, described first electrode, the second electrode, the 3rd electrode and connecting electrode comprise metallic particles, Graphene, carbon nano-tube or conducting polymer composite.
11. fingerprint recognition detection components according to claim 4, is characterized in that, described wiping is drawn formula fingerprint detection element and also comprised:
Reference electrode, is oppositely arranged with described 3rd electrode and is positioned at the described three electrode side contrary with described multiple row be made up of the second electrode.
12. fingerprint recognition detection components according to claim 11, is characterized in that, described wiping is drawn formula fingerprint detection element and also comprised:
Many illusory drive electrodes, described many illusory drive electrodes are arranged side by side and are electrically connected to each other, the side contrary with described 3rd electrode of what described many articles of illusory drive electrodes were corresponding with described many articles of drive electrodes be arranged at described reference electrode.
13. fingerprint recognition detection components according to claim 4, is characterized in that, the pattern that described first electrode, the second electrode and the 3rd electrode are formed is made up of conductive grid at least partially.
14. 1 kinds of terminal devices with fingerprint recognition measuring ability, comprise as the fingerprint recognition detection components in claim 1-13 as described in any one.
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| CN201420485338.6U CN204028944U (en) | 2014-08-26 | 2014-08-26 | Fingerprint recognition detection components and terminal device |
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| CN201420485338.6U CN204028944U (en) | 2014-08-26 | 2014-08-26 | Fingerprint recognition detection components and terminal device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893919A (en) * | 2015-01-26 | 2016-08-24 | 胡家安 | Fingerprint detection module method |
| WO2017100997A1 (en) * | 2015-12-15 | 2017-06-22 | 华为技术有限公司 | Electronic device and fingerprint identification method |
| CN108701222A (en) * | 2016-11-17 | 2018-10-23 | 指纹卡有限公司 | Use the fingerprint sensing of the measurement structure with different main extending directions |
| 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 |
-
2014
- 2014-08-26 CN CN201420485338.6U patent/CN204028944U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893919A (en) * | 2015-01-26 | 2016-08-24 | 胡家安 | Fingerprint detection module method |
| WO2017100997A1 (en) * | 2015-12-15 | 2017-06-22 | 华为技术有限公司 | Electronic device and fingerprint identification method |
| US10719689B2 (en) | 2015-12-15 | 2020-07-21 | Huawei Technologies Co., Ltd. | Electronic device and fingerprint recognition method |
| CN108701222A (en) * | 2016-11-17 | 2018-10-23 | 指纹卡有限公司 | Use the fingerprint sensing of the measurement structure with different main extending directions |
| 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 |
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Granted publication date: 20141217 Termination date: 20180826 |