CN205334502U - Fingerprint identification module and have electron device of this fingerprint identification module - Google Patents

Abstract

The utility model relates to a scanning awakens the fingerprint identification module and have electron device of this fingerprint identification module who starts the fingerprint and discern the function up. The fingerprint identification module has the fingerprint sensor who detects the finger and whether touch information and collection fingerprint image information function including one, an and guard circle, the guard circle surrounds fingerprint sensor is with the shielding it is right to enclose noise signal outside the guard circle fingerprint sensor's interference. Have the electron device of above -mentioned fingerprint identification module, be in including a shell and an embedding apron on the shell, an and display module, the display module is display module assembly or touch -control display module assembly, fingerprint sensor is located outside the display module imaging region.

Description

Fingerprint recognition module and there is the electronic installation of this fingerprint recognition module

[technical field]

This utility model relates to fingerprint identification technology field, wakes the fingerprint recognition module starting finger print identification function and the electronic installation with this fingerprint recognition module up particularly to a kind of scanning。

[background technology]

Fingerprint sensing technology has been widely used and has been frequently used for provide the secure access to sensitive electronic equipment and/or sensitive data。In general, capacitance type fingerprint identification module may be used for determining fingerprint image by the electric capacity measured through multiple capacitive sensor elements。

The button of the capacitance type fingerprint identification module Chang Huiyu electronic equipment being applied in electronic equipment is combined; and the position that button is user frequently to be touched; so install capacitance type fingerprint identification module to meet the use habit of user most herein, also can be relatively easy to and collect easily the fingerprint image of user。For capacitance type fingerprint identification module, it is by the distance between finger and capacitance sensing array, so that the texture of the wrinkle ridge and stricture of vagina paddy that the capacitance being derived from is to distinguish finger。And the unlatching of capacitance sensing array is controlled by starting switch (as pressing type triggers switch), only after finger touches button, processor just can drive capacitance sensing array to start to scan the finger print image information being positioned on button。The starting switch generally adopted is installed on the bottom in finger sensing arrays vertical stack structural design direction, in order to give finger one feedback information, elastic a triggering even also can be adopted to switch。

But, the starting switch of prior art is as an element with relatively large thickness, the vertical height of major part can be occupied when being installed on fingerprint recognition module, indirectly increase the thickness of the fingerprint recognition module of vertical stacking, and now the optimal design idea that electronic product is lightening be runed counter to。Meanwhile, starting switch also needs when installing consider and mate compatible degree between other components, so assembling of fingerprint recognition module is proposed higher requirement, if coupling discomfort, also can reduce the yield of product。

Summing up drawback described above, a kind of scanning wakes the fingerprint recognition module starting finger print identification function and the electronic installation with this fingerprint recognition module up, is for institute Ji。

[utility model content]

For overcoming many defects of existing fingerprint recognition module, this utility model provides a kind of scanning and wakes the fingerprint recognition module starting finger print identification function and the electronic installation with this fingerprint recognition module up。

This utility model solves the scheme of technical problem and is to provide a kind of fingerprint recognition module, has detection finger whether touch information including one and gathers the fingerprint sensor of information in fingerprint function；And a guard circle, described guard circle surrounds described fingerprint sensor to shield the interference to described fingerprint sensor of the periphery noise signal of described guard circle。

Preferably, described guard circle system one electrostatic defending circle turn on ground connection。

Preferably, described fingerprint sensor is a pressing type sensor, including multiple capacitor blocks that array is arranged。

Preferably, farther including a button, described fingerprint sensor is positioned at the bottom in described button vertical stack structural design direction；One cover plate, including the key hole of a described button of collecting and the fingerprint sensor of the bottom being positioned at described button。

Preferably, farther include a support member, described fingerprint sensor and described guard circle to be all carried on described support member。

Preferably, described button includes a hardening coat and an ink layer, described hardening coat and described ink layer and is positioned on different vertical stack height, and described ink layer is opaque。

This utility model also provides for a kind of electronic installation adopting above-mentioned fingerprint recognition module and building, and including a back-cover, described fingerprint recognition module is embedded in described back-cover。

Preferably, described fingerprint sensor is a swiping formula capacitance sensor, in the process that the relatively described fingerprint sensor of described finger slides, gathers multiple fingerprint image fragment。

This utility model also provides for a kind of electronic installation with above-mentioned fingerprint recognition module, including a shell, and the cover plate that an embedding is on the housing；And a display module, described display module is display module or touch-control display module, and described fingerprint sensor is positioned at outside display module imaging region。

Preferably, described cover plate is provided with multiple infrared detecting hole, described electronic installation includes at least one RF transmitter and at least one infrared receiver, described RF transmitter and described infrared receiver and detects the finger touch to described fingerprint sensor with the true and false finger of identification by the plurality of infrared detecting hole。

Compared with prior art, fingerprint recognition module of the present utility model adopts fingerprint sensor detect the information of finger whether touch key-press simultaneously and gather finger print image information, such that it is able to switch finger print identification function with scanning the mode waken up, save a starting switch, reduce fingerprint recognition module cost, it is also possible to make product be more easy to realize lightening。

When finger touches detection pattern (first mode), adopt two kinds of power save scheme (i.e. Frequency sweeping scheme and same frequency sweeping scheme) that one-touch scanning wakes up in Initiated Mechanism, so not only do not affect the sensing whether finger is touched, it is also possible to save the powering quantity of scanning。

The electronic installation of the employing fingerprint recognition module that this utility model provides, not only has the beneficial effect of above-mentioned fingerprint recognition module。And it is arranged around infrared detecting hole at its button, it is used for detecting true and false finger information, electronic installation anti-counterfeiting detection function can be improved thus further。

[accompanying drawing explanation]

Fig. 1 is the exploded perspective structural representation of this utility model first embodiment fingerprint recognition module。

Fig. 2 is the cross-sectional view of this utility model first embodiment fingerprint recognition module。

Fig. 3 A is the floor map of the fingerprint sensor of this utility model first embodiment fingerprint recognition module。

Fig. 3 B is the another kind of floor map of the fingerprint sensor of this utility model first embodiment fingerprint recognition module。

Fig. 4 A is the driver' s timing figure of the fingerprint sensor of this utility model fingerprint recognition module。

Fig. 4 B is another floor map of the fingerprint sensor of this utility model first embodiment fingerprint recognition module。

Fig. 5 A is the structural representation that this utility model the second embodiment has the electronic installation of above-mentioned fingerprint recognition module。

Fig. 5 B is another structural representation that this utility model the second embodiment has the electronic installation of above-mentioned fingerprint recognition module。

Fig. 6 is the schematic perspective view that this utility model the 3rd embodiment has the electronic installation of above-mentioned fingerprint recognition module。

Fig. 7 is the cross-sectional view of the fingerprint recognition module of this utility model the 3rd embodiment electronic installation。

[detailed description of the invention]

In order to make the purpose of this utility model, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing and embodiment, this utility model are further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model。

Refer to Fig. 1, this utility model provides a kind of fingerprint recognition module 10 that can apply to electronic equipment, and it can be applied but be not limited to smart phone, panel computer, media player, PC, mobile phone, mobile phone, microtelephone and other portable electric appts or running gear。Fingerprint recognition module 10 includes cover plate 103 and the button 101 being embedded on cover plate 103, and a support member 107 and is carried on fingerprint sensor 105 thereon。

The fingerprint recognition module 10 starting finger print identification function is waken up with scanning, best citing person is the lower section that fingerprint sensor 105 is positioned at button 101 vertical stack structural design direction so that fingerprint recognition module 10 is easy to perform collection and the identification of fingerprint when user finger manipulation button 101。

Initiated Mechanism is waken up, the one in the optional two kinds of power save scheme (i.e. Frequency sweeping scheme and same frequency sweeping scheme) taking follow-up exposure for just facial one-touch scanning。

First Fig. 1 and Fig. 2 will be coordinated to illustrate with Frequency sweeping scheme herein, fingerprint sensor 105 can keep low frequency long period to continue to scan the information whether having finger touch on button 101, if finger touches or close button 101, then change rate of scanning and be switched to the short cycle information in fingerprint drainage pattern of high frequency, perform the collection to fingerprint or identification。After finger is away from button 101, fingerprint sensor 105 then again modulation frequency return to the macrocyclic finger of low frequency and touch detection pattern。

Further, scanning wakes the fingerprint recognition module 10 starting finger print identification function up and also can synchronize to wake up through one-touch scanning the bright screen pattern of startup one display module。So, realize the collection of information in fingerprint and the unlatching of finger print identification function by a fingerprint sensor 105 simultaneously, and the unlatching of the bright screen pattern of display module, omit a switch element (such as pressure type starting switch), it is possible to that is done by fingerprint recognition module 10 is more frivolous。

Referring again to Fig. 2, the best citing person of described button 101 is the function button of electronic equipment, here for the frequent touch location of finger (namely refer in particular to and show that module is positioned at the front position of same side), being easy to most the acquisition process of fingerprint, the function button of mobile phone etc. such as existing lift-launch fingerprint recognition module 10 is like this。

Button 101 is selected and is made by transparent or semitransparent glass, sapphire, aluminium oxide, plastic cement, resin and similar material thereof；Selectively, button 101 also can directly be formed (including the composite coating layer of hardening coat and ink coating, hardening coat and ink layer are positioned on different vertical stack height) by composite coating layer。

Please note, in button 101 design that non-composite coating layer is directly formed, an ink layer 1011 can be coated with at the arbitrary stacking At The Height in the inside in its vertical stack structural design direction or bottom, ink layer 1011 can print or vapour deposition is in the described position of button 101, becoming opaque by otherwise transparent or translucent button 101, therefore the component of the bottom in vertical stack structural design direction will not be visual by user。Position is set can the adjusting according to need and be arranged at button about 101 either side and do not limited to of ink layer 1011。

Cover plate 103 can be assembled on the glass cover-plate of electronic equipment, on Trackpad, on input module, on the button of keyboard, on the housing of input equipment or output device, the display screen of touch first-class like this, and cover plate 103 Rhizoma Nelumbinis is connected on the framework of any one component described。Cover plate 103 can by glass, and plastic cement and similar material thereof are made, and can cut through radium-shine cutting or CNC and coordinate polishing technology to be precisely controlled its size。

Cover plate 103 includes a key hole 1031 (consulting Fig. 1), is placed in the cover plate 103 position corresponding to button 101 distribution。Key hole 1031 is the through hole of the shapes such as a circle run through, ellipse, square, irregular polygon。Button 101 is embedded in and is positioned in this key hole 1031, and the top surface of button 101 keeps with the upper surface of cover plate 103 flushing, highlighting or depression, and is not limited。That is, as deformation, button 101 can also design for cover plate 103 upper surface at key hole 1031 convex, it is possible to deeply recessed in key hole 1031 designs under cover plate 103 upper surface。

Fingerprint recognition module 10 also includes a guard circle 1033, and guard circle 1033 is embedded in key hole 1031, and around the fingerprint sensor 105 of the button 101 described in encirclement and the bottom being positioned at button 101。The cross sectional shape of guard circle 1033 is " L " shape, the upper surface flush of the highest point of vertical cross-section and cover plate 103, and bottom level extends the lower surface fitting in cover plate 103, and is carried on support member 107 simultaneously。

Guard circle 1033 is an electrostatic defending circle, has electrostatic defending and the double; two effect of metallic shield concurrently, is that a conductive material is made, it is preferred to metal material, such as simple substance or its metalloid oxides such as aluminum, copper, ferrum。The guard circle 1033 being made around by this conductive material can form a shielding space, makes fingerprint sensor 105 that noise signal outside guard circle 1033 arranges without interference with its inside to the collection of fingerprint image signal and identification。Simultaneously; there is the characteristic of conduction by the guard circle 1033 of metal material; the signal of telecommunication conducting ground connection that finger 50 finger tip remains can be got rid of; avoid the residual electrostatic impact on fingerprint sensor 105 further; the mode of the ground connection of conducting can be the ground pin that guard circle is directly electrically connected to support member 107; or it is electrically connected to the IC earthing contact of electronic equipment, or is electrically connected to the earth terminal of circuit main board, also or be electrically connected on the frame ground end of electronic equipment。Especially; the cross section of fingerprint sensor 105 vertically height is within the altitude range of the vertical direction in described guard circle 1033 cross section; so that guard circle 1033 surrounds fingerprint sensor 105 fully up in vertical stack structural design side, the shielding external signal interference to fingerprint sensor 105 largely。

Support member 107 can comprise the semiconductor board of silicon materials, one pcb board, one flexible circuit board, one Rigid Flex or comprise at least one composite support fagging aforementioned, do not limited to, it is loaded on after on this support member 107 at fingerprint sensor 105 structure, by bonding wire or PIN, fingerprint sensor 105 and support member 107 can be conductively connected, after connecting bonding wire or PIN, curable insulant (such as epoxy resin plastic material or resin) can be filled further be packaged bonding pad and fingerprint sensor 105 processing, fingerprint sensor 105 that packaging protection is coated by an insulating material and bonding wire or PIN；So, a kind of selection of the encapsulation that aforementioned disclosed resinous plastic material is only in the present embodiment, encapsulation technology is not selected and limited to。

Hookup 1 and the Fig. 2 explanation to first embodiment, will illustrate for fingerprint sensor thin portion structure herein, disclose the selection of fingerprint electrode pattern especially。Refer to Fig. 3 A, fingerprint sensor 105 is a capacitance type sensor, including the rectangular capacitive block 1053 that multiple arrays are arranged, when there being finger 50 to be positioned on button 101, the plurality of capacitor block 1053 combined effect detection is put in finger print information thereon, and is stored for follow-up coupling by storage medium。Rectangular capacitive block 1053 at array is arranged around guard circle 1033 to shield the interference of external signal。

Again, refer to Fig. 3 B, in the distressed structure of fingerprint sensor 105 ', for example, the strip electrode line 1053 ' that multiple transverse and longitudinal is crisscross arranged can be included, as arranged five parallel strip electrode lines 1053 ' so that X-direction is horizontally arranged, Y-direction is vertically arranged and arranges four parallel bar shaped capacitor blocks 1053 ', wherein multiple strip electrode lines 1053 ' of X-direction are positioned on different lamination from the strip electrode line 1053 ' of Y-direction, multiple strip electrode lines 1053 ' of X-direction can be identical or different with spacing and the quantity of the strip electrode line 1053 ' of Y-direction, and detect fingerprint pattern with electric capacity。Similar to above-mentioned fingerprint sensor 105, the rectangular electrode line 1053 at fingerprint sensor 105 ' is also disposed around guard circle 1033 ' to shield the interference of external signal。

In order to become apparent from understanding two kinds of power save scheme (i.e. Frequency sweeping scheme and same frequency sweeping scheme) that the one-touch scanning of this patent wakes up in Initiated Mechanism, please the corresponding concrete operational details understanding Frequency sweeping scheme and same frequency sweeping scheme with reference to Fig. 4 A and Fig. 4 B respectively。

In Frequency sweeping scheme, referring to Fig. 4 A, when finger 50 does not contact described button 101, the plurality of capacitor block 1053 is opened low frequency long period finger and is touched detection pattern (first mode；Sleep pattern), the driving signal scan cycle being now supplied to fingerprint sensor is longer, and rate of scanning is 1-5Hz, it is preferred to 3Hz, owing to the scan period is longer, so power consumption is very little。When finger 50 touches after on button 101, the change of capacitance can be there is at least some of capacitor block 1053 of the multiple capacitor blocks 1053 in fingerprint sensor 105, now then represent that finger 50 has been located in button 101 at least in state to be scanned, then provide a finger scan signal to fingerprint sensor 105, this signal is the short intermittent scanning signal of high frequency, rate of scanning is 20-40Hz, it is preferably 30Hz, start to read the finger print image information being put in above button 101, start fingerprint image acquisition pattern (the second pattern；Awakening mode)。Must notice, touching the signal pulse strength of detection pattern and the short intermittent scanning signal of high frequency and the cycle is only signal in order to representing low frequency long period finger shown in Fig. 4 A, actual pulse number and the cycle of low frequency long period signal and the short period signal of high frequency can be complied with design and be adjusted。The number of times of all capacitor blocks 1053 in fingerprint sensor 105 of complete scan in the indication rate of scanning system time of 1 second herein。

After finger 50 leaves button 101, then terminate the collection of current finger print image information, be again turned on the macrocyclic finger of low frequency and touch detection pattern (i.e. first mode；Sleep pattern)。Operation principle touches at fingerprint collecting pattern and finger and toggles operation between detection pattern and realize scanning and wake finger print identification function up according to this。

In same frequency sweeping scheme, refer to Fig. 4 B, deform as one, fingerprint sensor 105 " include multiple first capacitor blocks 1053 that array is arranged ", it is used for detecting finger touch information and multiple second capacitor block 1055 ", it is used for gathering information in fingerprint。Multiple first capacitor blocks 1053 " and multiple second capacitor block 1055 " be respectively positioned on guard circle 1033 " within。Must notice, first capacitor block 1053 " and the second capacitor block 1055 " belong to complete set fingerprint electrode detecting pattern, the virtual differentiation in addition based on first mode and the second mode operating demand, the first capacitor block 1053 chosen in this variant embodiment " be continuous 4 the first capacitor blocks 1053 in a horizontal virtual region ", but also can choose first capacitor block 1053 in 4 adjacent rectangular regions ", do not limited to。

In same frequency sweeping scheme, multiple first capacitor blocks 1053 " and multiple second capacitor block 1055 " it is provided which a short-period scanning signal of high frequency, the frequency of this scanning signal and the second capacitor block 1055 " gather information in fingerprint frequency identical, for 20-40Hz, it is preferred to 30Hz。When fingerprint sensor 105 " work in finger touch detection pattern (first mode；Sleep pattern) time, the first capacitor block 1053 " work, the second capacitor block 1055 " do not work, run owing to now only having least a portion of capacitor block, so power consumption is very little。Once collect finger touch signal, then start fingerprint image acquisition pattern (the second pattern；Awakening mode), now the second capacitor block 1053 " it is initially added into work collection fingerprint image。

Preferably, the first capacitor block 1053 " detection finger touch information (under first mode) can be had concurrently and gather the function of information in fingerprint (under the second pattern)。When being so designed that, the second capacitor block 1055 " it is in off working state in the flrst mode, it is possible to make whole fingerprint sensor be in battery saving mode。And under the second mode, the first capacitor block 1053 " and the second capacitor block 1055 " work collection information in fingerprint simultaneously。Can make to collect information in fingerprint more every time。

Relative to this utility model first embodiment (i.e. fingerprint recognition and the front position aspect being positioned at same side with display module), this utility model the second embodiment provides the one-touch scanning of back-cover formula to wake the startup enforcement practice (namely fingerprint recognition and display module are positioned at the aspect of not ipsilateral) up。Refer to Fig. 5 A, second embodiment provides an electronic installation 200, described electronic installation 200 is a portable mobile phone, including a back-cover 202, back-cover 202 is provided with photographic head 204, takes pictures for realization, photograph, scan the functions such as Quick Response Code, luminous source 206, for providing good photoenvironment for shooting or providing illumination functions, and one is embedded in fingerprint sensor 205 in back-cover 202, for gathering and identify the finger print information of user。

Similar with above-mentioned fingerprint sensor 105, the one-touch scanning of back-cover formula wakes the startup enforcement practice up and is also suitable for two kinds of power save scheme (i.e. Frequency sweeping scheme and same frequency sweeping scheme) that aforementioned one-touch scanning wakes up in Initiated Mechanism, in Frequency sweeping scheme, fingerprint sensor 205 can keep low frequency long period to continue the information whether having finger touch in fingerprint sensor 205, if finger touches or close fingerprint sensor 205, then it is switched to the short cycle information in fingerprint drainage pattern of high frequency, performs the collection to fingerprint or identification。After finger is away from fingerprint sensor 205, fingerprint sensor 205 is then again restored to the macrocyclic finger of low frequency and touches detection pattern。Being also disposed around a guard circle 2033 at fingerprint sensor 205, guard circle 2033 surrounds the interference to described fingerprint sensor 205 of the described fingerprint sensor 205 periphery noise signal with shielding protection circle 2033, and has electrostatic defending effect concurrently。

Fingerprint sensor 205 is positioned at the bottom of photographic head 204, the placement location of fingerprint sensor 205 relies primarily on and how can be easy to user finger and touch this fingerprint sensor 205 herein, the present embodiment is preferably arranged in back-cover 202 relatively for ease of the region of finger print placement, as relied on the size of mobile phone, the size of user finger and calculating is learnt and should be placed on the position that mobile phone center back is on the upper side。

As deformation, fingerprint sensor 205 can also be a swiping formula sensor, this fingerprint sensor 205 adopts the capacitance sensor of long strip type to carry out the collection of fingerprint image, area occupied is little, and only needing less sensing region can realize collection and the coupling of fingerprint image, module cost is comparatively cheap。

Chat the bright one-touch scanning of back-cover formula and wake startup for clear up and preferably implement the practice, refer to Fig. 5 B, fingerprint sensor 205 ' includes the capacitor block 2053 ' that multiple array is arranged, the structure of the plurality of capacitor block 2053 ' and function can the rectangular capacitive blocks 1053 that arrange of the array as described in Fig. 3 A, or the strip electrode line 1053 ' that the transverse and longitudinal described in Fig. 3 B is crisscross arranged, also or as described in Fig. 4 B, include multiple first capacitor block 1053 " and multiple second capacitor block 1055 "。

Refer to Fig. 6 and Fig. 7, this utility model the 3rd embodiment provides a kind of fingerprint recognition module 10 adopted described in above-mentioned first embodiment and the electronic installation 300 that builds, described electronic installation 300 is a portable mobile phone, including a shell 306, be embedded in cover plate 303 on this shell 306 with one, arrange on cover plate 303 button 301 and be placed under button 301 fingerprint sensor 305。

Electronic installation 300 also includes a display module 302, this display module 302 can be for developing to the display module of picture or touch-control display module, fingerprint sensor 305 is positioned at outside display module 302 imaging region, consider the user use habit to mobile phone, it is preferred that fingerprint sensor 305 is arranged at the bottom (orientation relatively up and down when using) of display module 302 so that mobile phone is hand-held。Especially, display module 302 is displayed for the fingerprint sensor 305 collection process to information in fingerprint, so that user can know that its finger is in currently collected fingerprint image process, it is simple to the user adjustment to finger placement location。When display module 302 is a touch-control display module; the scanning signal of touching signals and display signal can be coupled to fingerprint sensor 305 position, now by guard circle 3033, this touching signals and display signal shielding can be avoided outside fingerprint sensor 305 its interference (namely shielding the interference to described fingerprint sensor 305 of the periphery noise signal of described guard circle 3033) to information in fingerprint scanning。

Fingerprint recognition module 10 relative to first embodiment example, being different in that on cover plate 303, embedding is provided with one, two or more infrared detecting holes 304, RF transmitter 308A and infrared receiver 308B is by this infrared detecting hole 304 touch of sensing finger around button 301。Especially, the sensing of finger is more easy to true and false (such as the plastic cement prosthetic finger) of identification finger by infrared ray。While the true and false finger of identification, fingerprint sensor 305 can be reused and is scanned waking the collection starting fingerprint image and identification up by infrared detecting principle。

Compared with prior art, fingerprint recognition module 10 of the present utility model adopts fingerprint sensor 105 detect the information of finger 50 whether touch key-press 101 simultaneously and gather finger print image information, such that it is able to switch finger print identification function with scanning the mode waken up, save a starting switch, reduce fingerprint recognition module 10 cost, it is also possible to make product be more easy to realize lightening。

When finger touches detection pattern (first mode), adopt two kinds of power save scheme (i.e. Frequency sweeping scheme and same frequency sweeping scheme) that one-touch scanning wakes up in Initiated Mechanism, so not only do not affect the sensing whether finger 50 is touched, it is also possible to save the powering quantity of scanning。

The electronic installation 300 of the employing fingerprint recognition module 10 that this utility model provides, not only has the beneficial effect of above-mentioned fingerprint recognition module 10。And it is arranged around infrared detecting hole 304 at its button 301, it is used for detecting true and false finger information, electronic installation 300 anti-counterfeiting detection function can be improved thus further。

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendments made within principle of the present utility model, equivalent replacement and improvement etc. all should comprise within protection domain of the present utility model。

Claims (10)

1. a fingerprint recognition module, it is characterised in that including:

One has detection finger whether touch information and gathers the fingerprint sensor of information in fingerprint function；And

One guard circle, described guard circle surrounds described fingerprint sensor to shield the interference to described fingerprint sensor of the periphery noise signal of described guard circle。

2. fingerprint recognition module as claimed in claim 1, it is characterised in that: described guard circle system one electrostatic defending circle also turns on ground connection。

3. fingerprint recognition module as claimed in claim 1, it is characterised in that: described fingerprint sensor is a pressing type sensor, including multiple capacitor blocks that array is arranged。

4. fingerprint recognition module as claimed in claim 3, it is characterised in that farther include:

One button, described fingerprint sensor is positioned at the bottom in described button vertical stack structural design direction；

One cover plate, including the key hole of a described button of collecting and the fingerprint sensor of the bottom being positioned at described button。

5. fingerprint recognition module as claimed in claim 4, it is characterised in that: farther include a support member, described fingerprint sensor and described guard circle and be all carried on described support member。

6. fingerprint recognition module as claimed in claim 4, it is characterised in that: described button includes a hardening coat and an ink layer, described hardening coat and described ink layer and is positioned on different vertical stack height, and described ink layer is opaque。

7. one kind adopts fingerprint recognition module as claimed in claim 1 and the electronic installation that builds, it is characterised in that including a back-cover, described fingerprint recognition module is embedded in described back-cover。

8. electronic installation as claimed in claim 7, it is characterised in that: described fingerprint sensor is a swiping formula capacitance sensor, in the process that the relatively described fingerprint sensor of described finger slides, gathers multiple fingerprint image fragment。

9. an electronic installation with fingerprint recognition module as claimed in claim 1, it is characterised in that including:

One shell, and the cover plate that an embedding is on the housing；And

One display module, described display module is display module or touch-control display module, and described fingerprint sensor is positioned at outside display module imaging region。

10. electronic installation as claimed in claim 9, it is characterized in that: described cover plate is provided with multiple infrared detecting hole, described electronic installation includes at least one RF transmitter and at least one infrared receiver, described RF transmitter and described infrared receiver and detects the finger touch to described fingerprint sensor with the true and false finger of identification by the plurality of infrared detecting hole。