CN204883744U - Finger print detection device - Google Patents
Finger print detection device Download PDFInfo
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- CN204883744U CN204883744U CN201520627332.2U CN201520627332U CN204883744U CN 204883744 U CN204883744 U CN 204883744U CN 201520627332 U CN201520627332 U CN 201520627332U CN 204883744 U CN204883744 U CN 204883744U
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Abstract
The utility model relates to a finger print detection device. This finger print detection device includes circuit board, treater, electrically -conductive backing plate, fingerprint sensing chip and live body discernment subassembly. Fingerprint sensing chip is used for gathering the fingerprint pattern of treating verification person's finger to can treat that the fingerprint pattern of verification person's finger transmits for the treater with the collection, light source module can send the light signal, the OPTICAL SENSORS can be with smooth signal transmission to the treater by the finger reflection, wherein, the treater can become the pulse signal with the light signal conversion by finger reflection, and the treater can mate the pulse signal of light signal conversion's pulse signal and the human body that prestores in order confirming whether to start fingerprint sensing chip, and the treater still can mate the identity in order to confirm to treat verification person with the fingerprint pattern of the fingerprint pattern gathered and the human body that prestores. Above -mentioned finger print detection device can be used for detecting living body fingerprint for identity safe and reliable is more verified to the fingerprint.
Description
Technical field
The utility model relates to touch-screen field, particularly relates to a kind of finger print detection device.
Background technology
The conventional fingerprint recognition device of prior art only identifies fingerprint pattern to be measured, compares with the fingerprint pattern recorded in system, if judge consistent, then judges that this fingerprint pattern is verified.Now commercially there is special imitated fingerprint film technology, by copying the fingerprint pattern of experimenter, fingerprint can be copied on similar silica gel material, because the fingerprint copied is identical with experimenter's fingerprint, equally also can obtain being verified of conventional fingerprint recognition device, this can not be guaranteed with regard to making the security originally intending to utilize the feature of somatic fingerprint uniqueness to carry out authentication.
Utility model content
Based on this, be necessary to provide a kind of finger print detection device for identifying live fingerprint, make above-mentioned finger print detection device identity verification more safe and reliable.
A kind of finger print detection device, comprising:
Circuit board;
Processor, is electrically connected with described circuit board, and described processor prestores the fingerprint pattern of human body and the pulse signal of human body;
Electrically-conductive backing plate, is electrically connected with described circuit board;
Fingerprint sensor, is installed on described electrically-conductive backing plate, and is electrically connected with described electrically-conductive backing plate, and the described fingerprint pattern gathered for gathering the fingerprint pattern of the finger of person to be verified, and can be transferred to described processor by described fingerprint sensor; And
Vivo identification assembly, comprises light source module and OPTICAL SENSORS, and described light source module is electrically connected with described electrically-conductive backing plate, and described light source module can send light signal; Described OPTICAL SENSORS is electrically connected with described electrically-conductive backing plate, and described OPTICAL SENSORS can receive by the light signal of the finger of described person to be verified reflection, and the described optical signal transmission extremely described processor that can will be reflected by described finger;
Wherein, described processor can convert pulse signal to by by the described light signal of described finger reflection, the described pulse signal that described light signal can be changed by described processor carries out mating to determine whether to start described fingerprint sensor with the pulse signal of the described human body prestored, and the described fingerprint pattern gathered and the fingerprint pattern of the described human body prestored also can be carried out the identity mating to determine described person to be verified by described processor.
Wherein in an embodiment, also comprise packaging part, described packaging part is fixedly connected with described electrically-conductive backing plate, and described packaging part and described electrically-conductive backing plate coordinate the 3rd host cavity forming first host cavity of accommodating described fingerprint sensor, second host cavity of accommodating described light source module and be contained in described OPTICAL SENSORS jointly; Described packaging part also offers and is communicated with described second host cavity and extraneous light hole, and be communicated with described 3rd host cavity and extraneous incidence hole.
Wherein in an embodiment, also comprise housing, described housing is the housing of one end open, described housing offers handle hole, the edge of opening of described housing is fixedly connected with described circuit board, wherein, described electrically-conductive backing plate, described fingerprint sensor and described vivo identification assembly are all contained in described housing, and the position of the position of described fingerprint sensor, described light source module is all corresponding with the position of described handle hole with the position of described OPTICAL SENSORS.
Wherein in an embodiment, described electrically-conductive backing plate is installed on described circuit board, be formed with underfill glue-line between described electrically-conductive backing plate and described circuit board, described fingerprint sensor, described light source module and described OPTICAL SENSORS are all positioned at the side of described electrically-conductive backing plate away from described circuit board.
Wherein in an embodiment, described light source module is green-light source module.
Wherein in an embodiment, described light source module is three, and three described light source modules are respectively green-light source module, red-light source module and infrared light light source module, and three described light source modules are in parallel.
Wherein in an embodiment, described light source module is two, and light source module described in one of them is green-light source module, and light source module described in another is red-light source module or infrared light light source module.
Wherein in an embodiment, described vivo identification assembly is multiple, and multiple described vivo identification assembly is arranged around described fingerprint sensor.
Wherein in an embodiment, also comprise the glue line of the described fingerprint sensor of bonding and described electrically-conductive backing plate.
Wherein in an embodiment, described fingerprint sensor is capacitance type fingerprint sensing chip.
Above-mentioned finger print detection device is when the identity for verifying person to be verified, the light signal that light source module sends is received by OPTICAL SENSORS by after the reflection of the finger of person to be verified, OPTICAL SENSORS can by this optical signal transmission to processor, processor is converted to pulse signal according to this by the light signal pointing reflection, whether the finger that processor is undertaken mating to determine person to be verified by the pulse signal of the pulse signal changed out by light signal and the human body prestored is live finger, and whether be that live finger is to determine whether to start fingerprint sensor according to the finger of person to be verified, when the pulse signal that light signal is changed out matches with the pulse signal of the human body prestored, judge that this finger is live finger, now, processor starts fingerprint sensor, fingerprint sensor gathers the fingerprint pattern of person to be verified finger, and the fingerprint pattern of collection is transferred to processor, the fingerprint pattern of collection and the fingerprint pattern of the human body prestored are carried out the identity mating to determine person to be verified by processor, to realize the fingerprint recognition to live finger, make above-mentioned finger print detection device more safe and reliable for identity verification.
Accompanying drawing explanation
Fig. 1 is the structural representation of the finger print detection device of an embodiment;
The circuit of the circuit board that Fig. 2 is the finger print detection device shown in Fig. 1, electrically-conductive backing plate, fingerprint sensor and vivo identification assembly connects block diagram;
Fig. 3 eliminates the structural representation of housing, circuit board, connector and the element such as electric capacity and resistance for the finger print detection device shown in Fig. 1;
Fig. 4 eliminates the structural representation of fingerprint sensor, vivo identification assembly, gold thread and glue line for the finger print detection device shown in Fig. 3.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figures 1 and 2, the finger print detection device 100 of an embodiment, can be used for the fingerprint detecting live body.This finger print detection device 100 comprises circuit board 110, processor 120, electrically-conductive backing plate 130, fingerprint sensor 140 and vivo identification assembly 150.
Circuit board 110 can be rigid circuit board, flexible PCB or Rigid Flex.In the present embodiment, circuit board 110 is flexible PCB (FPC).
Processor 120 is electrically connected with circuit board 110.Wherein, processor 120 is for the process of the process of signal, conversion and data.Processor 120 prestores the fingerprint pattern of human body and the pulse signal of human body, and pulse signal refers to the pulsation frequency range of normal living person herein.
Electrically-conductive backing plate 130 is for carrying fingerprint sensor 140 and vivo identification assembly 150.Electrically-conductive backing plate 130 is electrically connected with circuit board 110.Wherein, electrically-conductive backing plate 130 is fixed on circuit board 110.And electrically-conductive backing plate 130 is fixed on circuit board 110 by scolding tin 135, with realize electrically-conductive backing plate 130 fixing while, realize the electrical connection between electrically-conductive backing plate 130 and circuit board 110.Concrete, electrically-conductive backing plate 130 is connected on circuit board 110 by land grid array technology (LandGridArray, LGA) or ball-like pins Background Grid array packages technology (BallGridArray, BGA).
Concrete, electrically-conductive backing plate 130 is installed on circuit board 110, is filled with underfill (Underfill glue) 160 between electrically-conductive backing plate 130 and circuit board 110.
Fingerprint sensor 140 is installed on electrically-conductive backing plate 130, and is electrically connected with electrically-conductive backing plate 130, and the fingerprint pattern of collection for gathering the fingerprint pattern of the finger of person to be verified, and can be transferred to processor 120 by fingerprint sensor 140.
Concrete, fingerprint sensor 140 is positioned at the side of electrically-conductive backing plate 130 away from circuit board 110.More specifically, finger print detection device 100 also comprises the glue line 170 of bonding fingerprint sensor 140 and electrically-conductive backing plate 130.Wherein, glue line 170 is double faced adhesive tape, such as, and DAF (DieAttachedFilm) film.Wherein, fingerprint sensor 140 is electrically connected with electrically-conductive backing plate 130 by gold thread 145.
In the present embodiment, fingerprint sensor 140 is capacitance type fingerprint sensing chip.Wherein, capacitance type fingerprint sensing chip is the fingerprint sensor a kind of " flat board " being integrated with multiple semiconductor devices.Its principle is: the another side of human finger is attached to " flat board " upper and its formation electric capacity, because finger flat is uneven, concave point place contacts " flat board " actual range with salient point place is in different size, the capacitance values formed is also different, respond to the different positions judging " ridge " and " paddy " of granuloplastic capacitance size according to " ridge " and " paddy " of finger print and semicoductor capacitor, realize the collection to finger fingerprint pattern.Its specific works process is by being pre-charged to a certain reference voltage to the capacitive sensing particle on each pixel, when in finger contact to capacitance type fingerprint sensing chip, because " ridge " is protruding, " paddy " is recessed, according to the relation of capacitance and distance, different capacitances can be formed at " ridge " place and " paddy " place, then discharge current is utilized to discharge, because " ridge " is different with the capacitance corresponding to " paddy ", so the speed of its electric discharge is also different, pixel (electric capacity is high) electric discharge under " ridge " is slower, and pixel (electric capacity the is low) electric discharge be under " paddy " is very fast.Finger is by when capacitance type fingerprint sensing chip surperficial, and the electric capacity that " ridge " of fingerprint is formed comes bigger than " paddy ", utilizes the charge and discharge process of this capacitor array, just can obtain the data image signal of fingerprint.
Vivo identification assembly 150 is for the identification of live body.Specifically in the illustrated embodiment in which, vivo identification assembly 150 is one.Be appreciated that in other embodiments, vivo identification assembly 150 is multiple; Such as, vivo identification assembly 150 is two, and two vivo identification assemblies 150 are relatively arranged on the both sides of fingerprint sensor 140; Or vivo identification assembly 150 is more than three, and vivo identification assembly 150 is arranged around fingerprint sensor 140.Plural vivo identification assembly 150 is more conducive to the identification of finger print detection device 100 pairs of live bodies.Wherein, each vivo identification assembly 150 comprises light source module 152 and OPTICAL SENSORS 154.
Light source module 152 is electrically connected with electrically-conductive backing plate 130, and light source module 152 can send light signal.Wherein, light source module 152 is installed on electrically-conductive backing plate 130.Concrete, light source module 152 is positioned on the side of electrically-conductive backing plate 130 away from circuit board 110.Light source module 152 is electrically connected with electrically-conductive backing plate 130 by gold thread.Light source module 152 is LED light source module.
Due to when ruddiness or Infrared irradiation are to blood, blood can by most ruddiness or infrared light reflection, and when green glow exposes to blood, blood by the absorption of most of green glow, thus can convert pulse signal to according to the light quantity difference of blood absorption green glow or reflect red.
Specifically in the illustrated embodiment in which, light source module 152 is three, three light source modules 152 are respectively green-light source module, red-light source module and infrared light light source module, and three light source modules 152 are in parallel, so that select which light source module 152 to open as required.Wherein, green-light source module, red-light source module and infrared light light source module can work simultaneously, or select wherein one or two to work; Or can open three light source modules 152 in the different periods respectively, the pulse signal that three light source modules 152 obtain changed out respectively by processor 120, then obtains mean value, makes pulse signal more accurate.
Be appreciated that in other embodiments, three light source modules 152 also can be connected, and now, three light source modules 152 work simultaneously; Or in other embodiments, light source module 152 can be only one, now, light source module 152 is green-light source module.Or light source module 152 is two, a light source module 152 is green-light source module, and another light source module 152 is red-light source module or infrared light light source module, and two light source modules 152 are in parallel; Or two light source modules 152 also can be connected.
OPTICAL SENSORS 154 is electrically connected with electrically-conductive backing plate 130, and OPTICAL SENSORS 154 can receive the light signal of the finger reflection of person to be verified, and can will be pointed the optical signal transmission of reflection to processor 120.Wherein, processor 120 can convert pulse signal to by by the light signal of finger reflection, the pulse signal that light signal can be changed by processor 120 carries out mating to determine whether to start fingerprint sensor 140 with the pulse signal of the human body prestored, and the fingerprint pattern of collection and the fingerprint pattern of the human body prestored also can be carried out the identity mating to determine person to be verified by processor 120.
Wherein, OPTICAL SENSORS 154 is installed on electrically-conductive backing plate 130.Concrete, OPTICAL SENSORS 154 is positioned on the side of electrically-conductive backing plate 130 away from circuit board 110.Wherein, OPTICAL SENSORS 154 is installed on electrically-conductive backing plate 130 by adhesive glue.Wherein, adhesive glue is double faced adhesive tape, such as, and DAF (DieAttachedFilm) film.And OPTICAL SENSORS 154 is electrically connected with electrically-conductive backing plate 130 by gold thread.
Concrete, OPTICAL SENSORS 154 is photodiode (Photo-Diode, PD).
Further, finger print detection device 100 also comprises housing 180, housing 180 is the housing of one end open, housing 180 offers handle hole 182, the edge of opening of housing 180 is fixedly connected with circuit board 110, electrically-conductive backing plate 130, fingerprint sensor 140 and vivo identification assembly 150 are all contained in housing 180, and the position of the position of fingerprint sensor 140, light source module 152 is all corresponding with the position of handle hole 182 with the position of OPTICAL SENSORS 154.The effect that housing 180 can play protection fingerprint sensor 140, light source module 152 and OPTICAL SENSORS 154 is set.
Wherein, housing 180 can be square shell, circular housing, oval-shaped shell etc.The material of housing 180 can be the conventional material in this area.Such as, housing 180 is ceramic package or metal shell.
See also Fig. 3 and Fig. 4, further, finger print detection device 100 also comprises packaging part 190, packaging part 190 is fixedly connected with electrically-conductive backing plate 130, and with electrically-conductive backing plate 130 jointly coordinate formed accommodate fingerprint sensor 140 the first host cavity 192, accommodate the second host cavity 194 of light source module 152 and be contained in the 3rd host cavity 195 of OPTICAL SENSORS 154; Packaging part 190 offers connection second host cavity 194 and extraneous light hole 196, and offer connection the 3rd host cavity 195 and extraneous incidence hole 197.
Wherein, the quantity of the second host cavity 194 is equal with the quantity of light source module 152, and corresponding second host cavity 194 of light source module 152; The quantity of light hole 196 is equal with the quantity of the second host cavity 194, a corresponding light hole 196 of the second host cavity 194.Specifically in the illustrated embodiment in which, the second host cavity 194 is three, and a light source module 152 is contained in second host cavity 194.
Concrete, packaging part 190 is contained in housing 180, and packaging part 190 is fixedly connected with the inwall of housing 180.Light hole 196 and incidence hole 197 all communicate with handle hole 182.Packaging part 190 by filling after encapsulating material through solidifying to form in housing 180.Wherein, the material of packaging part 190 is epoxy-plastic packaging material (EpoxyMoldingCompound, EMC).Packaging part 190 can play vacuum seal effect to fingerprint sensor 140, ensures that it does not corrode by external environment, and can play the effect of fixed light source module 152 and OPTICAL SENSORS 154.
Be appreciated that in other embodiments, housing 180 can omit, and finger print detection device 100 can not have housing 180; Or packaging part 190 also can omit, finger print detection device 100 can not have packaging part 190.
Concrete, circuit board 110 is also provided with the element such as electric capacity, resistance 210 and for the connector 220 with miscellaneous equipment Signal transmissions.
The work of above-mentioned finger print detection device 100 identifying live fingerprint is specific as follows:
When the finger of person to be verified is positioned at handle hole 182 place, the light signal that light source module 152 sends penetrates from light hole 196, reflected after running into finger, received by OPTICAL SENSORS 154 after incidence hole 197 by the light signal of finger reflection, this is pointed the optical signal transmission of reflection to processor 120 by OPTICAL SENSORS 154, processor 120 converts pulse signal to after being converted to electric signal by the light signal of finger reflection, whether and judge whether this pulse signal matches with the pulse signal of the human body prestored, and then to judge to point be the finger of live body;
When processor 120 judges that the pulse signal that light signal is converted to matches with the pulse model of the human body prestored, and the finger of person to be verified presses on fingerprint sensor 140 by handle hole 182, processor 120 controls fingerprint sensor 140 and starts, now, fingerprint sensor 140 gathers the fingerprint pattern of finger, and the fingerprint pattern of collection is transferred to processor 120, the fingerprint pattern that fingerprint sensor 140 transmits by processor 120 mates with the fingerprint pattern of the human body prestored, judge whether the fingerprint pattern that fingerprint sensor 140 transmits mates with the somatic fingerprint pattern prestored,
When processor 120 judges that the fingerprint pattern that fingerprint sensor 140 transmits matches with the somatic fingerprint pattern prestored, person to be verified passes through authentication.
Wherein, processor 120 is as follows by being pointed the principle converting pulse signal after the light signal reflected is converted to electric signal to:
When only green-light source module work, due to when the heartbeat of human body, the blood flow of the microcapillary of finger can increase, the green glow absorbed also can increase, in the cardiac septum phase of human body, the blood of the microcapillary of finger can reduce, and the green glow of absorption also can reduce thereupon, processor 120 calculates the green glow total amount light quantity difference before and after by finger reflection, and converts pulse signal to.
When green-light source module and red-light source module work simultaneously, green-light source module and red-light source module are simultaneously to human finger utilizing emitted light signal, and when heartbeat, the microvascular blood flowed through in finger can increase, the green glow of blood absorption can increase, and the ruddiness of reflection also can increase; Heartbeat interval, the microvascular blood flowed through in finger can reduce, and the green glow of blood absorption can reduce, and the ruddiness of reflection also can reduce.Owing to using green-light source module and red-light source module reflected light signal simultaneously, the light total amount of launching is larger, be emitted to human finger surface back reflection still larger to the light total amount on OPTICAL SENSORS 154 surface, light quantity difference error before and after reflection is less, processor 120 calculates the total amount light quantity difference before and after reflection, and converts pulse signal to.
When green-light source module and infrared light light source module work simultaneously, green-light source module and infrared light light source module are simultaneously to human finger utilizing emitted light signal, when heartbeat, the microvascular blood flowed through in finger can increase, the green glow of blood absorption can increase, and the infrared light of reflection also can increase; Heartbeat interval, the microvascular blood flowed through in finger can reduce, and the green glow of blood absorption can reduce, and the infrared light of reflection also can reduce.Owing to using green-light source module and infrared light light source module reflected light signal simultaneously, the light total amount of launching is larger, be emitted to human finger surface back reflection still larger to the light total amount on OPTICAL SENSORS 154 surface, light quantity difference error before and after reflection is less, processor 120 calculates the total amount light quantity difference before and after reflection, and converts pulse signal to.
When green-light source module, red-light source module and infrared light light source module work simultaneously, green-light source module, red-light source module and infrared light light source module are simultaneously to human finger utilizing emitted light signal, when heartbeat, the microvascular blood flowed through in finger can increase, the green glow of blood absorption can increase, and the ruddiness of reflection and infrared light also can increase; Heartbeat interval, the microvascular blood flowed through in finger can reduce, and the green glow of blood absorption can reduce, and the ruddiness of reflection and infrared light also can reduce.Owing to using green-light source module, red-light source module and infrared light light source module utilizing emitted light signal simultaneously, the light total amount of launching is larger, be emitted to human finger surface back reflection still larger to the light total amount on OPTICAL SENSORS 154 surface, light quantity difference error before and after reflection is less, processor 120 calculates the total amount light quantity difference before and after reflection, and converts pulse signal to.
When above-mentioned finger print detection device 100 is for verifying the identity of person to be verified, the light signal that light source module 152 sends is received by OPTICAL SENSORS 154 by after the reflection of the finger of person to be verified, OPTICAL SENSORS 154 can by this optical signal transmission to processor 120, processor 120 is converted to pulse signal according to this by the light signal pointing reflection, whether the finger that processor 120 is undertaken mating to determine person to be verified by the pulse signal of the pulse signal changed out by light signal and the human body prestored is live finger, and whether be that live finger is to determine whether to start fingerprint sensor 140 according to the finger of person to be verified, when the pulse signal that light signal is changed out matches with the pulse signal of the human body prestored, judge that this finger is live finger, now, processor 120 starts fingerprint sensor 140, fingerprint sensor 140 gathers the fingerprint pattern of person to be verified finger, and the fingerprint pattern of collection is transferred to processor 120, the fingerprint pattern of collection and the fingerprint pattern of the human body prestored are carried out the identity mating to determine person to be verified by processor 120, to realize the fingerprint recognition to live finger, make above-mentioned finger print detection device 100 more safe and reliable for identity verification.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a finger print detection device, is characterized in that, comprising:
Circuit board;
Processor, is electrically connected with described circuit board, and described processor prestores the fingerprint pattern of human body and the pulse signal of human body;
Electrically-conductive backing plate, is electrically connected with described circuit board;
Fingerprint sensor, is installed on described electrically-conductive backing plate, and is electrically connected with described electrically-conductive backing plate, and the described fingerprint pattern gathered for gathering the fingerprint pattern of the finger of person to be verified, and can be transferred to described processor by described fingerprint sensor; And
Vivo identification assembly, comprises light source module and OPTICAL SENSORS, and described light source module is electrically connected with described electrically-conductive backing plate, and described light source module can send light signal; Described OPTICAL SENSORS is electrically connected with described electrically-conductive backing plate, and described OPTICAL SENSORS can receive by the light signal of the finger of described person to be verified reflection, and the described optical signal transmission extremely described processor that can will be reflected by described finger;
Wherein, described processor can convert pulse signal to by by the described light signal of described finger reflection, the described pulse signal that described light signal can be changed by described processor carries out mating to determine whether to start described fingerprint sensor with the pulse signal of the described human body prestored, and the described fingerprint pattern gathered and the fingerprint pattern of the described human body prestored also can be carried out the identity mating to determine described person to be verified by described processor.
2. finger print detection device according to claim 1, it is characterized in that, also comprise packaging part, described packaging part is fixedly connected with described electrically-conductive backing plate, and described packaging part and described electrically-conductive backing plate coordinate the 3rd host cavity forming first host cavity of accommodating described fingerprint sensor, second host cavity of accommodating described light source module and be contained in described OPTICAL SENSORS jointly; Described packaging part also offers and is communicated with described second host cavity and extraneous light hole and the incidence hole being communicated with described 3rd host cavity and the external world.
3. finger print detection device according to claim 1, it is characterized in that, also comprise housing, described housing is the housing of one end open, described housing offers handle hole, the edge of opening of described housing is fixedly connected with described circuit board, wherein, described electrically-conductive backing plate, described fingerprint sensor and described vivo identification assembly are all contained in described housing, and the position of the position of described fingerprint sensor, described light source module is all corresponding with the position of described handle hole with the position of described OPTICAL SENSORS.
4. finger print detection device according to claim 1, it is characterized in that, described electrically-conductive backing plate is installed on described circuit board, be formed with underfill glue-line between described electrically-conductive backing plate and described circuit board, described fingerprint sensor, described light source module and described OPTICAL SENSORS are all positioned at the side of described electrically-conductive backing plate away from described circuit board.
5. finger print detection device according to claim 1, is characterized in that, described light source module is green-light source module.
6. finger print detection device according to claim 1, is characterized in that, described light source module is three, and three described light source modules are respectively green-light source module, red-light source module and infrared light light source module, and three described light source modules are in parallel.
7. finger print detection device according to claim 1, is characterized in that, described light source module is two, and light source module described in one of them is green-light source module, and light source module described in another is red-light source module or infrared light light source module.
8. finger print detection device according to claim 1, is characterized in that, described vivo identification assembly is multiple, and multiple described vivo identification assembly is arranged around described fingerprint sensor.
9. finger print detection device according to claim 1, is characterized in that, also comprises the glue line of the described fingerprint sensor of bonding and described electrically-conductive backing plate.
10. finger print detection device according to claim 1, is characterized in that, described fingerprint sensor is capacitance type fingerprint sensing chip.
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|---|---|---|---|
| CN201520627332.2U CN204883744U (en) | 2015-08-19 | 2015-08-19 | Finger print detection device |
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| CN201520627332.2U CN204883744U (en) | 2015-08-19 | 2015-08-19 | Finger print detection device |
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| CN204883744U true CN204883744U (en) | 2015-12-16 |
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| CN201520627332.2U Expired - Fee Related CN204883744U (en) | 2015-08-19 | 2015-08-19 | Finger print detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105205446A (en) * | 2015-08-19 | 2015-12-30 | 南昌欧菲生物识别技术有限公司 | Fingerprint detection apparatus |
| CN106709413A (en) * | 2015-12-31 | 2017-05-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN108269793A (en) * | 2016-12-30 | 2018-07-10 | 菱生精密工业股份有限公司 | The encapsulating structure of optical module |
| CN110503035A (en) * | 2019-08-21 | 2019-11-26 | 洛阳师范学院 | A kind of biological attribute data detection device |
| CN113012317A (en) * | 2019-12-20 | 2021-06-22 | 云丁网络技术(北京)有限公司 | Identity confirmation equipment |
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2015
- 2015-08-19 CN CN201520627332.2U patent/CN204883744U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105205446A (en) * | 2015-08-19 | 2015-12-30 | 南昌欧菲生物识别技术有限公司 | Fingerprint detection apparatus |
| CN105205446B (en) * | 2015-08-19 | 2019-03-12 | 南昌欧菲生物识别技术有限公司 | Finger print detection device |
| CN106709413A (en) * | 2015-12-31 | 2017-05-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| WO2017113767A1 (en) * | 2015-12-31 | 2017-07-06 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| US10360433B2 (en) | 2015-12-31 | 2019-07-23 | Shenzhen GOODIX Technology Co., Ltd. | Heart rate detection method and apparatus fingerprint identification apparatus and mobile terminal |
| CN106709413B (en) * | 2015-12-31 | 2020-12-08 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN108269793A (en) * | 2016-12-30 | 2018-07-10 | 菱生精密工业股份有限公司 | The encapsulating structure of optical module |
| CN110503035A (en) * | 2019-08-21 | 2019-11-26 | 洛阳师范学院 | A kind of biological attribute data detection device |
| CN110503035B (en) * | 2019-08-21 | 2022-10-14 | 洛阳师范学院 | Biological characteristic data detection device |
| CN113012317A (en) * | 2019-12-20 | 2021-06-22 | 云丁网络技术(北京)有限公司 | Identity confirmation equipment |
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