CN205486158U - Fingerprint identification device and mobile terminal - Google Patents
Fingerprint identification device and mobile terminal Download PDFInfo
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- CN205486158U CN205486158U CN201521139618.2U CN201521139618U CN205486158U CN 205486158 U CN205486158 U CN 205486158U CN 201521139618 U CN201521139618 U CN 201521139618U CN 205486158 U CN205486158 U CN 205486158U
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- identification device
- fingerprint identification
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Abstract
The utility model discloses a fingerprint identification device and mobile terminal, fingerprint identification device includes fingerprint sensor and the optical module who is connected with the fingerprint sensor electricity, optical module is including the optical emitter that is used for launching the light signal of specific wavelength, a light signal for receiving optical emitter transmission and after the effect of touch -control thing, and be light signal conversion the photoelectric converter of the signal of telecommunication, and be used for the drive and control the optical emitter, and carry out analysis processes's optics circuit module to the signal of telecommunication, optics circuit module is connected with optical emitter and photoelectric converter electricity respectively. Also can use optical module's optical emitter and photoelectric converter in the time of finger touch fingerprint sensor, just so can simultaneous acquisition to the fingerprint signal and the optical signal that point to whether can judge for real finger fingerprint, reduce the risk that artificial finger line that fingerprint identification device was copied explaind, improve the security.
Description
Technical field
This utility model relates to fingerprint identification technology field, especially relates to a kind of fingerprint identification device and shifting
Dynamic terminal.
Background technology
Along with the intelligence degree of mobile terminal is more and more higher, the function of mobile terminal is more and more abundanter,
People can utilize social software to issue and sharing information on mobile terminals, can shoot photo, permissible
Browse webpage, it is also possible to carry out network payment, get more and more so that save user on mobile terminal
Privacy information and sensitive information, the safety of mobile terminal is increasingly becoming major issue of concern.
In view of fingerprint is as the important biomolecule feature of human body, and there is uniqueness feature, therefore fingerprint recognition
Device is widely used to mobile terminal at present, is mainly used in terminal unlocking, file encryption-decryption, safety support
Pay etc. function.But existing fingerprint identification device, can only be to the finger print information collected and the fingerprint prestored
Information compares, it is judged that whether the two mates, but cannot judge be currently real finger print or
The vacation copied refers to that mould fingerprint, the most existing fingerprint identification device have the risk that the false fingerprint copied cracks,
Thus reduce the safety of mobile terminal.
Utility model content
Main purpose of the present utility model is to provide a kind of fingerprint identification device and mobile terminal, it is intended to fall
The risk that the false fingerprint that low fingerprint identification device is copied cracks, improves safety.
To achieve these objectives, the utility model proposes a kind of fingerprint identification device, including fingerprint sensor with
And the optical module electrically connected with described fingerprint sensor, described optical module includes for launching certain wave
The optical transmitting set of long optical signal, that described optical transmitting set is launched and after touch control object effect for receiving
Optical signal, and described optical signal is converted to the optical-electrical converter of the signal of telecommunication, and be used for driving and controlling
Described optical transmitting set, and the described signal of telecommunication is analyzed the optical circuit module processed, described optics electricity
Road module electrically connects with described optical transmitting set and described optical-electrical converter respectively.
Alternatively, described optical circuit module and described fingerprint sensor are integrated in a chip, described core
Sheet is fingerprint chip.
Alternatively, described fingerprint sensor is individually integrated in a chip, and described optical circuit module is passed through
Data-interface electrically connects with described fingerprint sensor, and described chip is fingerprint chip.
Alternatively, described optical circuit module, optical-electrical converter and fingerprint sensor are integrated in a chip,
Described chip is fingerprint chip.
This utility model proposes a kind of mobile terminal simultaneously, and described mobile terminal includes a fingerprint identification device,
Described fingerprint identification device includes fingerprint sensor and the optical mode electrically connected with described fingerprint sensor
Block, described optical module includes the optical transmitting set of the optical signal for launching specific wavelength, is used for receiving institute
State that optical transmitting set is launched and after touch control object effect optical signal, and described optical signal is converted to telecommunications
Number optical-electrical converter, and be used for driving and controlling described optical transmitting set, and the described signal of telecommunication carried out
Analyzing and processing optical circuit module, described optical circuit module respectively with described optical transmitting set and described light
Electric transducer electrically connects.
A kind of fingerprint identification device provided by the utility model, by by optical module and fingerprint sensor
It is integrated in together on fingerprint identification device, while touch control object (such as finger) touches fingerprint sensor also
Optical transmitting set and the optical-electrical converter of optical module can be applied to, thus can collect finger simultaneously
Fingerprint signal and optical signalling, (i.e. determine whether real such that it is able to realize In vivo detection function
Finger print), reduce the risk that the false fingerprint that fingerprint identification device copied cracks, improve safety.
Further, it is also possible to by optical module realize heart rate detection, touch pressure detect, button detect,
The functions such as the detection of blood oxygen, monitoring of blood pressure, extend the function of terminal unit.This utility model is by by light
Learn module and be integrated in fingerprint identification device to realize the functions such as heart rate detection, single relative in terminal unit
Solely increase heart rate identification module and detect heart rate, there is simple in construction, low cost, advantage easy to use.
Accompanying drawing explanation
Fig. 1 is the module diagram of fingerprint identification device of the present utility model；
Fig. 2 is the module diagram of the optical circuit module in this utility model embodiment；
Fig. 3 is the integrated schematic diagram of circuit of the fingerprint identification device of this utility model first embodiment；
Fig. 4 is the structural representation of the fingerprint identification device of this utility model first embodiment；
Fig. 5 is the A-A sectional view of the fingerprint identification device in Fig. 4；
Fig. 6 is the structural representation of the fingerprint case chip in this utility model first embodiment；
Fig. 7 is the sectional view of the fingerprint case chip in Fig. 6；
Fig. 8 is the another sectional view of the fingerprint case chip in Fig. 6；
Fig. 9 is the schematic layout pattern of the optical-electrical converter in this utility model embodiment；
Figure 10 is the schematic layout pattern of the optical transmitting set in this utility model embodiment；
Figure 11 is the another structural representation of the fingerprint identification device of this utility model first embodiment；
Figure 12 is the sectional view of the fingerprint identification device in Figure 11；
Figure 13 is the another sectional view of the fingerprint identification device in Figure 11；
Figure 14 is the another structural representation of the fingerprint identification device of this utility model first embodiment；
Figure 15 is the sectional view of the fingerprint identification device in Figure 14；
Figure 16 is the another structural representation of the fingerprint identification device of this utility model first embodiment；
Figure 17 is the sectional view of the fingerprint identification device in Figure 16；
Figure 18 is the another structural representation of the fingerprint case chip in this utility model first embodiment；
Figure 19 is the sectional view of the fingerprint case chip in Figure 18；
Figure 20 is the another sectional view of the fingerprint case chip in Figure 18；
Figure 21 is the another structural representation of the fingerprint identification device of this utility model first embodiment；
Figure 22 is the sectional view of the fingerprint identification device in Figure 21；
Figure 23 is the another sectional view of the fingerprint identification device in Figure 21；
Figure 24 is the another sectional view of the fingerprint identification device in Figure 21；
Figure 25 is the integrated schematic diagram of circuit of the fingerprint identification device of this utility model the second embodiment；
Figure 26 is the structural representation of the fingerprint identification device of this utility model the second embodiment；
Figure 27 is the sectional view of the fingerprint identification device in Figure 26；
Figure 28 is the another structural representation of the fingerprint identification device of this utility model the second embodiment；
Figure 29 is the sectional view of the fingerprint identification device in Figure 28；
Figure 30 is the another structural representation of the fingerprint identification device of this utility model the second embodiment；
Figure 31 is the sectional view of the fingerprint identification device in Figure 30；
Figure 32 is the another structural representation of the fingerprint identification device of this utility model the second embodiment；
Figure 33 is the sectional view of the fingerprint identification device in Figure 32；
Figure 34 is the integrated schematic diagram of circuit of the fingerprint identification device of this utility model the 3rd embodiment；
Figure 35 is the structural representation of the fingerprint identification device of this utility model the 3rd embodiment；
Figure 36 is the another structural representation of the fingerprint identification device of this utility model the 3rd embodiment；
Figure 37 is the another structural representation of the fingerprint identification device of this utility model the 3rd embodiment；
Figure 38 is the schematic diagram that the fingerprint identification device of this utility model embodiment carries out fingerprint recognition；
Figure 39 is the sectional view of the fingerprint identification device of Figure 38；
Figure 40 is the structural representation of mobile terminal one embodiment of the present utility model.
Drawing reference numeral illustrates:
100-fingerprint sensor 200-optical module
210-optical transmitting set 220-optical circuit module
221-current driver 222-control circuit
223-current-to-voltage converting circuit and common mode rejection circuit 224-programmable gain amplifier
225-analog-digital converter 226-data analysis and process unit
230-optical-electrical converter 300-cover plate
400-circuit board 500-becket
600-shading piece 700-glue
10-fingerprint case chip 11-fingerprint chip
12-substrate 13-bonding wire
14-protective layer 101-touch control object
102-fingerprint identification device
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into
One step explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, and need not only in order to explain this utility model
In limiting this utility model.
See Fig. 1, propose fingerprint identification device of the present utility model, its be used for terminal unit, as mobile phone,
The mobile terminal devices such as flat board or other immobile terminal equipment.Described device includes fingerprint sensor 100
Electrically connect with optical module 200, fingerprint sensor 100 and optical module 200.Fingerprint sensor 100,
For detecting and identifying fingerprint, have fingerprint register, detect, the function such as coupling, its implementation is with existing
There is technology identical, do not repeat them here.Optical module 200, is used for when finger pressing fingerprint identification device,
Realize heart rate detection, touch pressure detection, button detection, the detection of blood oxygen, monitoring of blood pressure, button detection
Etc. function, it is particularly possible to be combined with fingerprint sensor 100, it is achieved In vivo detection function, i.e. determine whether
Be targeted customer real finger pressing fingerprint identification device, to reduce what fingerprint identification device was copied
The risk that false fingerprint cracks.
As it is shown in figure 1, optical module 200 includes optical transmitting set 210, optical circuit module 220 and photoelectricity
Transducer 230, optical circuit module 220 electrically connects with optical transmitting set 210 and optical-electrical converter 230 respectively,
Wherein:
Optical transmitting set 210: for launching the optical signal of specific wavelength, be the emission element of optical module 200,
It can be single or multiple, optical circuit module 220 control and drive.
Optical transmitting set 210 can be that (light-emitting diode is called for short the extra Light-Emitting Diode increased
LED), the device such as semiconductor laser (semiconductor laser, be called for short LD), it is also possible to be terminal
The luminous body that equipment is existing, such as display, breath light, flash lamp etc..Optical transmitting set can be bare crystalline core
Sheet (such as wafer) form or case chip form, it is possible to specific optical texture of arranging in pairs or groups according to demand, than
Such as structures such as prefocus cup, gratings.Optical transmitting set 210 can be packaged together with fingerprint sensor 100,
Can also be individual devices, independent layout be on fingerprint identification device.
Optical-electrical converter 230: for receiving that optical transmitting set 210 is launched and (including anti-through touch control object effect
Penetrate, scatter, projection etc.) after optical signal, and convert optical signals to the signal of telecommunication, its rear end connects light
Learn circuit module 220.Optical-electrical converter 230 can sense light intensity, detects from optical transmitting set 210
The light intensity change of light, and analyze and process this change by optical circuit module 220, it is achieved corresponding
Function.Optical-electrical converter 230 can use photodiode (Photo Diode is called for short PD).
Optical-electrical converter 230 can integrate with fingerprint sensor 100, it is also possible to is individual devices,
And with fingerprint sensor 100 be packaged together formation fingerprint case chip or individually layout fill in fingerprint recognition
Put.Touch control object i.e. touches the object of fingerprint identification device, and usually the finger of user, is likely to certainly
It is other positions of human body, such as toe etc..Optical signal after touch control object effect, i.e. when touch control objects such as fingers
During pressing fingerprint identification device, the light that optical transmitting set 210 is launched is through touch control object back reflection or scatters to
On optical-electrical converter 230 or directly by touch control object reflect or scatter on optical-electrical converter 230, photoelectricity
Transducer 230 receives the optical signal being reflected by touch control object or scattering.
Optical circuit module 220: be used for driving and controlling optical transmitting set 210, and to optical-electrical converter 230
The signal of telecommunication of conversion is analyzed processing, including being integrated process, processing and amplifying, going common mode process etc.,
And to the data (such as from the data of ADC sampling) finally collected according to different application functions,
It is analyzed processing.Further, optical circuit module 220 also work to whole optical module 200
Sequential and duty are controlled, and also include the number connecting external module (such as fingerprint sensor 100)
According to interface.
Optical circuit module 220 can be integrated into a chip with fingerprint sensor 100, it is also possible to as
Independent circuit module, is assemblied on fingerprint identification device.
Optical circuit module 220 is integrated with the circuit realizing all functions of optical module 200, including controlling
Circuit, analog circuit, data analysis and process unit etc..As in figure 2 it is shown, be the light in an embodiment
Learning the module diagram of circuit module 220, this optical circuit module 220 includes current driver 221, control
Circuit 222 processed, current-to-voltage converting circuit and common mode rejection circuit 223, programmable gain amplifier
(Programmable Gain Amplifier is called for short PGA) 224, analog-digital converter (Analog-to-Digital
Converter, is called for short ADC) 225 and data analysis and process unit 226, wherein, current driver
221 are used for driving optical transmitting set 210, control circuit 222 to be used for controlling optical transmitting set 210 launches certain wave
Long optical signal, current-to-voltage converting circuit and common mode rejection circuit 223 and PGA224 are for photoelectricity
The signal of telecommunication of transducer 230 conversion carries out a series of process and (includes Integral Processing, goes common mode to process, put
Big process etc.), ADC225 is used for converting analog signals into digital signal, data analysis and process unit
226 are used for the data finally collected according to different application functions, are analyzed processing, to realize the heart
The functions such as rate detection, touch pressure detection, button detection, the detection of blood oxygen, monitoring of blood pressure, button detection.
This utility model is by being integrated in fingerprint recognition by optical module 200 together with fingerprint sensor 100
On device, optics can also be applied to while touch control object (such as finger) touches fingerprint sensor 100
The optical transmitting set 210 of module 200 and optical-electrical converter 230, thus can collect the finger of finger simultaneously
Stricture of vagina signal and optical signalling, such that it is able to realize In vivo detection function (i.e. to determine whether real finger
Fingerprint), reduce the risk that the false fingerprint that fingerprint identification device copied cracks.
Further, it is also possible to realize heart rate detection, touch pressure detection, button inspection by optical module 200
The functions such as survey, the detection of blood oxygen, monitoring of blood pressure, extend the function of terminal unit.This utility model passes through
Optical module 200 is integrated in fingerprint identification device to realize the functions such as heart rate detection, relative in terminal
Equipment individually increases heart rate identification module and detects heart rate, there is simple in construction, low cost, user
Just advantage.
In this utility model, fingerprint sensor 100 and optical module 200 can use various ways to carry out
Layout, wherein, optical circuit module 220, optical transmitting set 210, optical-electrical converter 230 and fingerprint sensing
Device 100 combination in any can constitute integrated chip or integration packaging according to demand, or exists independently of one another
Constitute fingerprint identification device.It follows that fingerprint in fingerprint identification device will be passed by specific embodiment
The structure and layout of sensor 100 and optical module 200 are described in detail.
Embodiment one
As it is shown on figure 3, in the present embodiment, optical circuit module 220, optical-electrical converter 230 and fingerprint pass
Sensor 100 is integrated in a chip, and this chip is referred to as fingerprint chip 11；Optical transmitting set 210 is independent
Device, can be single or multiple.Fingerprint chip 11 can be packaged together formation with optical transmitting set 210
Fingerprint case chip；Or, fingerprint chip 11 is individually packaged into fingerprint case chip, and optical transmitting set 210 is placed in
Outside fingerprint case chip.
Being the first scheme of the present embodiment as shown in Figure 4, Figure 5, wherein, Fig. 4 is front view, and Fig. 5 is
In Fig. 4 A-A sectional view (follow-up sectional view is the sectional view along A-A cutting, for simplicity,
Mark the most in the drawings).The program is fingerprint chip 11 and optical transmitting set 210 is packaged together shape
Becoming the layout structure of fingerprint case chip 10, wherein, fingerprint identification device includes fingerprint case chip 10, cover plate
(Cover) 300, becket (Ring) 500 and circuit board 400.Fingerprint case chip 10 is by fingerprint chip
11 and optical transmitting set 210 be packaged together formation；Cover plate 300 needs the light launching optical transmitting set 210
Line has higher transmitance, and transmitance is the bigger the better, it is ensured that optical-electrical converter 230 and optical transmitting set 210
Top printing opacity, it is also possible to the equal printing opacity of full wafer cover plate 300, cover plate 300 can pass through plated film, laser
Micropore, coating pass through the modes such as the ink of specific wavelength light wave and realize printing opacity process；Cover plate 300 passes through
Glue 700 is bonded and fixed to fingerprint case chip 10, and glue 700 needs the light launching optical transmitting set 210
Line has higher transmitance, and transmitance is the highest more good, and preferably greater than 50%；Cover plate 300 and fingerprint encapsulation
Sheet 10 is respectively positioned in becket 500, and becket 500 is not necessary parts of the present utility model, at other
In embodiment, it is also possible to do not use becket 500；Circuit board 400 carries fingerprint case chip 10, cover plate
300 and becket 500, circuit board 400 is the application circuit including chip, with peripheral components, external electrical
Roads etc. are electrically connected with, its can be flexible PCB (Flexible Printed Circuit, be called for short FPC),
Flexible flat cable (Flexible Flat Cable is called for short FFC), printed circuit board (PCB) (Printed Circuit
Board, is called for short PCB) or Rigid Flex etc..
Fingerprint case chip 10 can as shown in figs 6-8, by complete to fingerprint sensor 100 and optical module 200
Portion is packaged together, and specifically includes substrate 12, the optical transmitting set 210 being arranged in substrate 12 and fingerprint chip
11, fingerprint chip 11 is integrated with optical circuit module 220, optical-electrical converter 230 and fingerprint sensor
100, its central region is fingerprint induction region, and substrate 12 and fingerprint chip 11 are electrically connected by bonding wire 13
Connect.
Further, being additionally provided with shading piece 600 between optical transmitting set 210 and optical-electrical converter 230, it is used
In stopping that the light direct irradiation of optical transmitting set 210 transmitting is in optical-electrical converter 230.Shading piece 600 needs
Light is had the attenuation function of absorption function or stronger, preferably the transmitance of target wavelength light wave is less than
1%, transmitance is the smaller the better.Shading piece 600 can have multiple implementation, such as can be by extinction material
Material is pasted or is coated on fingerprint chip 11 surface (such as side or/and upper surface, as shown in Figure 7, Figure 8),
Can also slot on fingerprint chip 11, in groove, fill extinction ink or glue.
In this utility model, shading piece 600 not necessarily parts, if need shading piece, need basis
Actual range between optical transmitting set 210 and optical-electrical converter 230, and optical transmitting set 210 transmitting
Light shines directly into the intensity of optical-electrical converter 230 and determines.In general, if optical transmitting set 210
The light launched shine directly into the intensity of optical-electrical converter 230 less than being reflected by touch control objects such as fingers after
Be irradiated to the light of optical-electrical converter 230 intensity 1%, it may be considered that do not use shading piece 600.
Further, it is also possible to cover a protective layer 14 on fingerprint chip 11 surface.Protective layer 14 uses
Light transmissive material, had both played the effect of protection fingerprint chip 11, and had met optical transmitting set 210 simultaneously and photoelectricity turns
The demand of printing opacity above parallel operation 230.Can also be only above optical transmitting set 210 and optical-electrical converter 230
Employing printing opacity processes, and uses light-proof material protection in other regions.
When fingerprint identification device is assembled on the terminal device, for ensureing preferable signal quality and use
Experience, preferably optical-electrical converter 230 is arranged near fingertip location, and optical-electrical converter 230 and light
The line of emitter 210 is parallel with touch control object (such as finger) direction, or intersecting angle is less.Here institute
Say is preferably suggested design, assembles mode for other, it is also possible to normally work, simply signal matter
Amount and experience difference.
Optical-electrical converter 230 and optical transmitting set 210 preferably distinguish layout in fingerprint sensor 100 both sides
Portion, it is ensured that when finger is pressed into fingerprint induction region, also can be applied to optical-electrical converter 230 and light simultaneously
Emitter 210, convenient cooperation fingerprint image carries out In vivo detection, is also convenient for optical pressure detection and the heart simultaneously
Other application functions such as rate detection.Certainly, optical-electrical converter 230 and optical transmitting set 210 can also use
Other layout type, as it is shown in figure 9, optical-electrical converter 230 can be arranged in fingerprint sensor 100 4
All optional positions, it is also possible to be arranged in the middle part of fingerprint sensor 100, and optical-electrical converter 230 can be
One, it is possibility to have multiple；As shown in Figure 10, optical transmitting set 210 can be arranged in fingerprint sensor 100
Surrounding optional position, it is also possible to surround fingerprint sensor 100 in the form of a ring, and optical transmitting set 210 can be one
Individual, it is possibility to have multiple.
Centre distance between optical-electrical converter 230 and optical transmitting set 210 is preferable with 3mm-10mm, and one
As may be designed as 5mm so that optical-electrical converter 230 receive light, be to be sent by optical transmitting set 210
The light reflected by touch control object, is reduced or avoided as far as possible and is shone directly into light by optical transmitting set 210
The light of electric transducer 230.When the light of direct irradiation is stronger, need to use shading piece 600 right
This some light carries out blocking process.
In this utility model, becket 500 not necessarily parts, as figs 11-13, for without metal
The structural representation of the fingerprint identification device of ring 500, wherein Figure 11 is front view, Figure 12 and Figure 13 is
Sectional view, Figure 12 and Figure 13 respectively show two kinds of implementation methods of shading piece 600.
Being the alternative plan of the present embodiment as shown in figures 14-17, the program is that fingerprint chip 11 individually encapsulates
Becoming the layout structure of fingerprint case chip 10, wherein, fingerprint identification device includes that fingerprint case chip 10, light are sent out
Emitter 210, cover plate 300, becket 500 and circuit board 400.Cover plate 300 and fingerprint case chip 10
In becket 500, owing to optical transmitting set 210 is single device, therefore can be by optical transmitting set 210
It is arranged in becket 500 (as shown in Figure 14 and Figure 15), it is also possible to optical transmitting set 210 is arranged in
Becket 500 outer (as shown in FIG. 16 and 17).
Fingerprint case chip 10 as depicted in figures 18-20, including fingerprint chip 11 and substrate 12, substrate 12 He
Fingerprint chip 11 is electrically connected by bonding wire 13, fingerprint chip 11 is integrated with optical circuit module 220,
Optical-electrical converter 230 and fingerprint sensor 100.Further, it is also possible to cover on fingerprint chip 11 surface
Cover a protective layer 14.Further, as shown in figure 20, it is also possible to hide in fingerprint chip 11 surface configuration
Light part 600, as light absorbent pasted or is coated on fingerprint chip 11 surface, certainly, implements at some
Example can also be omitted shading piece 600 (as shown in figure 19).In structure as shown in Figure 16 and Figure 17,
Owing to optical-electrical converter 230 and optical transmitting set 210 lay respectively at inside and outside becket 500, now
Becket 500 is equivalent to the shading piece 600 being arranged at therebetween, therefore without the most additionally arranging shading
Part 600, wherein, arrow represents that optical transmitting set 210 is launched and after touch control object 101 reflects light.
In certain embodiments, fingerprint identification device can also as further illustrated in figures 21-24 without becket 500,
Wherein Figure 21 is front view, and Figure 22-24 is sectional view.Figure 22 and Figure 23 has the shading of identical topology
Part 600 and the optical-electrical converter 230 of different layout；Figure 22 and Figure 24 has the opto-electronic conversion of identical topology
Device 230 and the shading piece 600 of different layout.
Embodiment two
As shown in figure 25, in the present embodiment, optical circuit module 220 and fingerprint sensor 100 are integrated in
One chip, this chip is referred to as fingerprint chip 11；Optical transmitting set 210 and optical-electrical converter 230 are made respectively
For individual devices.Fingerprint chip 11 can be packaged together with optical transmitting set 210 and optical-electrical converter 230
Formation fingerprint case chip 10, the feelings of the first scheme in the topology layout of this integration mode and embodiment one
Shape is similar, does not repeats them here；Fingerprint chip 11 can also be packaged together shape with optical-electrical converter 230
Become fingerprint case chip 10, and optical transmitting set 210 is placed in outside fingerprint case chip 10, the knot of this integration mode
Structure layout is similar to the situation of the alternative plan in embodiment one, does not repeats them here；Fingerprint chip 11 is also
Fingerprint case chip 10, optical-electrical converter 230 and optical transmitting set 210 can be separately formed and be placed in fingerprint encapsulation
Outside sheet 10, will carry out launching explanation to the topology layout of this integration mode below.
As shown in Figure 26 and Figure 27, fingerprint identification device include fingerprint case chip 10, optical transmitting set 210,
Optical-electrical converter 230, cover plate 300, becket 500 and circuit board 400.Cover plate 300, fingerprint encapsulate
Sheet 10, optical transmitting set 210 and optical-electrical converter 230 are respectively positioned in becket, optical transmitting set 210 and light
Electric transducer 230 is placed in fingerprint case chip 10 both sides, and optical transmitting set 210 and optical-electrical converter 230
Between be provided with shading piece 600.
Owing to optical-electrical converter 230 and optical transmitting set 210 are single device, accordingly it is also possible to such as figure
Shown in 28 and 29, optical transmitting set 210 and optical-electrical converter 230 are respectively placed in inside and outside becket 500
(or both sides in outer), or as shown in figs. 30 and 31, by optical transmitting set 210 and optical-electrical converter 230
It is placed in outside becket 500.Under this layout structure, becket 500 is equivalent to be arranged at light emission
Shading piece 600 between device 210 and optical-electrical converter 230, therefore without the most additionally arranging shading piece 600.
In certain embodiments, fingerprint identification device can also omit becket 500 (such as Figure 32 and 33 institute
Show).Alternatively, optical transmitting set 210 and optical-electrical converter 230 can also be as Figure 32 and 33, cloth
Being placed in the same side of fingerprint case chip 10, the two is disposed adjacent, and needs the most therebetween to arrange a shading
Part 600.
Embodiment three
As shown in figure 34, in the present embodiment, fingerprint sensor 100 is individually integrated in a chip, this core
Sheet is fingerprint chip 11, and optical circuit module 220 is electrically connected with fingerprint sensor 100 by data-interface,
This data-interface such as serial peripheral (Serial Peripheral Interface is called for short SPI) interface, I2C
(Inter-Integrated Circuit) EBI, universal asynchronous receiving-transmitting transmitter (Universal
Asynchronous Receiver/Transmitter, be called for short UART) interface, USB (universal serial bus) (Universal
Serial Bus, is called for short USB) interface etc..Optical transmitting set 210, optical-electrical converter 230, optical circuit
Module 220 can be combined as an integrated chip with any two or three or be combined as an overall package,
Single individual devices can also be respectively.
As shown in figure 35, fingerprint chip 11 is separately packaged as fingerprint case chip 10, optical circuit module 220,
Optical-electrical converter 230, optical transmitting set 210 are integrated into single optical module 200, optical module 200 and referring to
Stricture of vagina case chip 10 is electrically connected by data-interface.
As shown in figure 36, optical circuit module 220, optical-electrical converter 230, optical transmitting set 210 form
Optical module 200 be packaged together with fingerprint chip 11, constitute fingerprint case chip 10.
As shown in figure 37, optical circuit module 220 and fingerprint chip 11 are packaged together and constitute fingerprint envelope
Load 10, it is outside that optical-electrical converter 230 and optical transmitting set 210 are placed in fingerprint case chip 10.
Should be appreciated that the structure cloth of optical transmitting set 210 that previous embodiment mentions and optical-electrical converter 230
Office's scheme, is equally applicable to this embodiment, does not repeats them here.
As shown in Figure 38 and Figure 39, for utilizing fingerprint identification device of the present utility model to carry out fingerprint recognition
Schematic diagram, wherein Figure 38 is the front view of fingerprint identification device, and Figure 39 is the section view of fingerprint identification device
Figure, Figure 38 shows that touch control object 101 (such as finger) to be ready touching fingerprint identification device, and Figure 39 shows touch-control
Thing 101 has been pressed on the fingerprint sensor of fingerprint identification device 100, and in figure, arrow represents optical transmitting set
210 light launched are irradiated to the process of optical-electrical converter 230 after touch control object 101 reflects.
Fingerprint identification device of the present utility model, by by optical module 200 and fingerprint sensor 100 1
Rise and be integrated on fingerprint identification device, when touch control object 101 (such as finger) touches the same of fingerprint sensor 100
Time can also be applied to optical transmitting set 210 and the optical-electrical converter 230 of optical module 200, the most permissible
Collect fingerprint signal and the optical signalling of finger simultaneously, (i.e. sentence such that it is able to realize In vivo detection function
Whether disconnected is real finger print), reduce the wind that the false fingerprint that fingerprint identification device copied cracks
Danger, improves safety.
Further, it is also possible to realize heart rate detection, touch pressure detection, button inspection by optical module 200
The functions such as survey, the detection of blood oxygen, monitoring of blood pressure, extend the function of terminal unit.This utility model passes through
Optical module 200 is integrated in fingerprint identification device to realize the functions such as heart rate detection, relative in terminal
Equipment individually increases heart rate identification module and detects heart rate, there is simple in construction, low cost, user
Just advantage.
Seeing Figure 40, this utility model proposes a kind of mobile terminal simultaneously, and described mobile terminal includes a finger
Stricture of vagina identification device 102, described fingerprint identification device 102 include fingerprint sensor and with fingerprint sensor electricity
The optical module connected, optical module includes optical transmitting set 210, optical circuit module and optical-electrical converter
230, optical circuit module electrically connects with optical transmitting set 210 and optical-electrical converter 230 respectively.Wherein, light
Emitter 210 is for launching the optical signal of specific wavelength；Optical-electrical converter 230 is used for receiving optical transmitting set
210 launch and optical signal after touch control object 101 acts on, and convert optical signals to the signal of telecommunication；Optics
Circuit module is used for driving and controlling optical transmitting set 210, and is analyzed the signal of telecommunication processing.The present embodiment
Described in the fingerprint identification device 102 fingerprint recognition involved by above-described embodiment in this utility model
Device 102, does not repeats them here.Fingerprint identification device 102 in the present embodiment is arranged at mobile terminal
Home key position, in other embodiments, fingerprint identification device 102 can also be arranged at mobile terminal
Other position, as being located at mobile terminal side or the back side etc..
Mobile terminal of the present utility model, by being integrated in fingerprint together with fingerprint sensor by optical module
Identify on device, optics can also be applied to while touch control object (such as finger) touches fingerprint sensor
The optical transmitting set of module and optical-electrical converter, thus can collect fingerprint signal and the light of finger simultaneously
Learn signal, such that it is able to realize In vivo detection function (i.e. determining whether real finger print), reduce
The risk that the false fingerprint that fingerprint identification device is copied cracks, improves safety.
Further, it is also possible to by optical module realize heart rate detection, touch pressure detect, button detect,
The functions such as the detection of blood oxygen, monitoring of blood pressure, extend the function of mobile terminal.This utility model is by by light
Learn module and be integrated in fingerprint identification device to realize the functions such as heart rate detection, relative to single in the terminal
Solely increase heart rate identification module and detect heart rate, there is simple in construction, low cost, advantage easy to use.
Illustrate preferred embodiment of the present utility model above by reference to accompanying drawing, not thereby limit to this practicality new
The interest field of type.Those skilled in the art, without departing from scope and spirit of the present utility model, can have many
Planting flexible program and realize this utility model, the feature for example as an embodiment can be used for another embodiment
And obtain another embodiment.All use technology of the present utility model design within made any amendment,
Equivalent and improvement, all should be within interest field of the present utility model.
Claims (20)
1. a fingerprint identification device, including fingerprint sensor, it is characterised in that also include and described finger
The optical module of stricture of vagina sensor electrical connection, described optical module includes the optical signal for launching specific wavelength
Optical transmitting set, for receiving described optical transmitting set is launched and optical signal after touch control object effect, and
Described optical signal is converted to the optical-electrical converter of the signal of telecommunication, and is used for driving and control described light emission
Device, and the described signal of telecommunication is analyzed the optical circuit module processed, described optical circuit module is respectively
Electrically connect with described optical transmitting set and described optical-electrical converter.
Fingerprint identification device the most according to claim 1, it is characterised in that described optical circuit mould
Block and described fingerprint sensor are integrated in a chip, and described chip is fingerprint chip.
Fingerprint identification device the most according to claim 2, it is characterised in that described fingerprint chip with
Described optical transmitting set and described optical-electrical converter are packaged together and form fingerprint case chip.
Fingerprint identification device the most according to claim 3, it is characterised in that described device also includes
Becket, described fingerprint sensor and optical module are respectively positioned in described becket.
Fingerprint identification device the most according to claim 2, it is characterised in that described fingerprint chip with
Described optical-electrical converter is packaged together and forms fingerprint case chip.
Fingerprint identification device the most according to claim 5, it is characterised in that described device also includes
Becket, wherein:
Described fingerprint sensor and optical module are respectively positioned in described becket；Or,
Described fingerprint sensor, optical circuit module and optical-electrical converter are positioned at described becket, described
Optical transmitting set is positioned at outside described metal.
Fingerprint identification device the most according to claim 2, it is characterised in that described fingerprint chip list
Solely it is packaged into fingerprint case chip.
Fingerprint identification device the most according to claim 7, it is characterised in that described device also includes
Becket, wherein:
Described fingerprint sensor and optical module are respectively positioned in described becket；Or,
Described fingerprint sensor, optical circuit module and optical-electrical converter are positioned at described becket, described
Optical transmitting set is positioned at outside described metal；Or,
Described fingerprint sensor, optical circuit module and optical transmitting set are positioned at described becket, described light
Electric transducer is positioned at outside described metal；Or,
Described fingerprint sensor and optical circuit module are positioned at described becket, described optical-electrical converter and
Described optical transmitting set is positioned at outside described metal.
Fingerprint identification device the most according to claim 1, it is characterised in that described fingerprint sensor
Individually being integrated in a chip, described optical circuit module is by data-interface and described fingerprint sensor electricity
Connecting, described chip is fingerprint chip.
Fingerprint identification device the most according to claim 9, it is characterised in that described fingerprint chip
Individually it is packaged into fingerprint case chip.
11. fingerprint identification devices according to claim 9, it is characterised in that described fingerprint chip
It is packaged together with described optical module and forms fingerprint case chip.
12. fingerprint identification devices according to claim 9, it is characterised in that described fingerprint chip
It is packaged together with described optical circuit module and forms fingerprint case chip.
13. fingerprint identification devices according to claim 1, it is characterised in that described optical circuit
Module, optical-electrical converter and fingerprint sensor are integrated in a chip, and described chip is fingerprint chip.
14. fingerprint identification devices according to claim 13, it is characterised in that described fingerprint chip
It is packaged together with described optical transmitting set and forms fingerprint case chip.
15. fingerprint identification devices according to claim 14, it is characterised in that described device also wraps
Including becket, described fingerprint sensor and optical module are respectively positioned in described becket.
16. fingerprint identification devices according to claim 13, it is characterised in that described fingerprint chip
Individually it is packaged into fingerprint case chip.
17. fingerprint identification devices according to claim 16, it is characterised in that described device also wraps
Include becket, wherein:
Described fingerprint sensor and optical module are respectively positioned in described becket；Or,
Described fingerprint sensor, optical circuit module and optical-electrical converter are positioned at described becket, described
Optical transmitting set is positioned at outside described metal.
18. according to the fingerprint identification device described in any one of claim 2-17, it is characterised in that described
Device also includes for stopping that light direct irradiation that described optical transmitting set launches is in described optical-electrical converter
Shading piece, described shading piece is located between described optical transmitting set and described optical-electrical converter.
19. fingerprint identification devices according to claim 18, it is characterised in that described shading piece is:
Paste or be coated on the light absorbent of described fingerprint chip surface；Or,
It is filled in the extinction ink in the groove of described fingerprint chip or glue.
20. 1 kinds of mobile terminals, it is characterised in that include the finger as described in any one of claim 1-19
Stricture of vagina identification device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605164.1U CN206003114U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
| CN201521139618.2U CN205486158U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139618.2U CN205486158U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620605164.1U Division CN206003114U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
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| CN205486158U true CN205486158U (en) | 2016-08-17 |
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| CN201620605164.1U Active CN206003114U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620605164.1U Active CN206003114U (en) | 2015-12-31 | 2015-12-31 | Fingerprint identification device and mobile terminal |
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