CN110414364A - Fingerprint identification device, mobile terminal and fingerprint identification method - Google Patents
Fingerprint identification device, mobile terminal and fingerprint identification method Download PDFInfo
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- CN110414364A CN110414364A CN201910592910.6A CN201910592910A CN110414364A CN 110414364 A CN110414364 A CN 110414364A CN 201910592910 A CN201910592910 A CN 201910592910A CN 110414364 A CN110414364 A CN 110414364A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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Abstract
The embodiment of the invention provides a kind of fingerprint identification device, mobile terminal and fingerprint identification methods.Through touch module after detecting touch control operation, wake-up signal is sent to display surface template die group, fingerprint recognition mould group and processing module.After the display surface template die group receives the wake-up signal, the first image prestored is shown.After the fingerprint recognition mould group receives the wake-up signal, the corresponding finger print information of the touch control operation is acquired, and the finger print information is sent to the processing module.The processing module receives the finger print information after receiving the wake-up signal, and the finger print information is compared with the sample fingerprint prestored, to verify to the finger print information.Wake-up signal is synchronized in such a way that the touch module is using parallel communications and is sent to target mould group, so that fingerprint recognition speed is accelerated, user experience gets a promotion.
Description
Technical field
The present invention relates to fingerprint identification technology fields, in particular to a kind of fingerprint identification device, mobile terminal and refer to
Line recognition methods.
Background technique
Currently, fingerprint identification technology is increasingly used in mobile terminal, by putting in the terminal
Fingerprint identification device is set, user is allowed easily to complete mobile terminal unlock, payment and identity by fingerprint identification technology
The operation such as certification, improves user experience and safety.
With the development of mobile terminal, screen is increasingly becoming the trend of mobile terminal design comprehensively, in design screen comprehensively, leads to
The method that normal fingerprint recognition uses is Touch IC (Touch-Screen Controller, touch panel control chip) low
Under power consumption mode, detect on screen whether have finger through TP Sensor (Touch Position Sensor, touch sensing)
Line.
Once detecting successfully, Touch IC penetrates INT (interrupt instruction, interrupt instruction) for AP
(Application Processor, application processor) wakes up, and AP passes through I after being waken up2C(Inter-Integrated
Circuit, IC bus) finger pressing position information is read, after receiving information needed, AP wakes up Display
Driver IC (panel driving chip) and Fingerprint IC (fingerprint recognition chip) starts execution and powers on movement.
After powering on movement completion, location information and instruction are passed through MIPI (Mobile Industry again by AP
Processor Interface, mobile industry processor interface) and SPI (Serial Peripheral Interface, serially
Peripheral Interface) agreement is sent to Display Driver IC and Fingerprint IC, and just whether the fingerprint on recognition screen
Really, for carry out device unlock, action payment and individual privacy identification application.
In the prior art, the time required for such fingerprint identification method is longer, according to the difference of carrying platform and algorithm,
Time is usually in 700-800ms.How to shorten the time of fingerprint recognition is to be worth the problem of inquiring into.
Summary of the invention
In view of this, the purpose of the application is, a kind of fingerprint identification device, mobile terminal and fingerprint identification method are provided
To improve the above problem.
The embodiment of the present invention provides a kind of fingerprint identification device, is applied to mobile terminal, described device includes: touch module
And display surface template die group, fingerprint recognition mould group and the processing module being separately connected with the touch module, the fingerprint are known
Other mould group and display surface template die group are also connect with the processing module；
The touch module for detecting touch control operation, and sends wake-up signal to the display surface template die group, the finger
Line identifies mould group and the processing module；
The display surface template die group shows the first image prestored after receiving the wake-up signal；
The fingerprint recognition mould group acquires the corresponding fingerprint of the touch control operation after receiving the wake-up signal
Information, and the finger print information is sent to the processing module；
The processing module receives the finger print information, and the fingerprint is believed after receiving the wake-up signal
It ceases and is compared with the sample fingerprint prestored, to be verified to the finger print information.
Further, the touch module, including first interface, second interface, third interface and the 4th interface；
The touch module, for sending wake-up signal to the display surface template die group by the first interface；
The touch module, for sending wake-up signal to the fingerprint recognition mould group by the second interface；
The touch module, for sending wake-up signal to the fingerprint recognition mould group by the third interface；
The touch module, for sending wake-up signal to the processing module by the 4th interface.
The embodiment of the present invention also provides a kind of mobile terminal, including above-mentioned fingerprint identification device.
The embodiment of the present invention also provides a kind of fingerprint identification method, is applied to fingerprint identification device, the fingerprint recognition dress
It sets including touch module and the display surface template die group being separately connected with the touch module, fingerprint recognition mould group and processing mould
Block, the fingerprint recognition mould group and display surface template die group are also connect with the processing module, which comprises
The touch module sends wake-up signal to the display surface template die group, the finger after detecting touch control operation
Line identifies mould group and the processing module；
After the display surface template die group receives the wake-up signal, the first image prestored is shown；
After the fingerprint recognition mould group receives the wake-up signal, the corresponding finger print information of the touch control operation is acquired,
And the finger print information is sent to the processing module；
The processing module receives the finger print information after receiving the wake-up signal, and by the finger print information
It is compared with the sample fingerprint prestored, to be verified to the finger print information.
Further, the touch module includes first control unit and the first sensing unit, and the touch module is being visited
After measuring touch control operation, wake-up signal is sent to the display surface template die group, the fingerprint recognition mould group and the processing mould
The step of block includes:
First sensing unit generates trigger signal after detecting touch control operation, and the trigger signal is sent to
The first control unit；
After the first control unit receives the trigger signal, transmission wake-up signal to the display surface template die group,
The fingerprint recognition mould group and the processing module.
Further, after the first control unit receives the trigger signal, wake-up signal is sent to the display
After the step of panel module, the fingerprint recognition mould group and processing module, the method also includes:
The first control unit is handled the trigger signal of acquisition to obtain the corresponding position of the touch control operation
Information, and the location information is sent to the fingerprint recognition mould group.
Further, the fingerprint recognition mould group includes the second sensing unit and the second control unit, the fingerprint recognition
After mould group receives the wake-up signal, acquiring the step of touch control operation corresponds to finger print information includes:
Second control unit is initialized after receiving the wake-up signal；
Second sensing unit according to the positional information, acquires the touch-control of the location information corresponding position
The touch-control image of operation, and the touch-control image is sent to second control unit；
Second control unit handles the touch-control image data received corresponding to obtain the touch control operation
Finger print information.
Further, the fingerprint recognition mould group includes the second control unit and the second sensing unit, the fingerprint recognition
After mould group receives the wake-up signal, the step of acquiring the touch control operation corresponding finger print information, includes:
Second control unit is initialized after receiving the wake-up signal；
Second sensing unit acquires the corresponding touch-control image of the touch control operation, and the touch-control image is sent to
Second control unit；
Second control unit is handled the touch-control image received to obtain the corresponding finger of the touch control operation
Line information.
Further, the display surface template die group includes third control unit and display panel, the display surface template die group
After receiving the wake-up signal, the step of showing the first image prestored, includes:
The third control unit is initialized after receiving the wake-up signal；
The display panel, which is controlled, after the third control unit completion initialization shows the first image prestored.
Further, the processing module receives the finger print information after receiving the wake-up signal, and will be described
Finger print information is compared with the sample fingerprint prestored, the step of to be verified to the finger print information after, the method
Further include:
If the finger print information is consistent with the sample fingerprint prestored, the processing module controls the display panel
The second image that module displays prestore, to prompt fingerprint authentication to pass through.
If the finger print information and the sample fingerprint prestored are inconsistent, the processing module controls the display surface
The third image that plate module displays prestore, to prompt fingerprint authentication not pass through.
The embodiment of the invention provides a kind of fingerprint identification device, mobile terminal and fingerprint identification methods.Pass through touch-control mould
Group sends wake-up signal to display surface template die group, fingerprint recognition mould group and processing module after detecting touch control operation.It is described
After display surface template die group receives the wake-up signal, the first image prestored is shown.The fingerprint recognition mould group receives institute
After stating wake-up signal, the corresponding finger print information of the touch control operation is acquired, and the finger print information is sent to the processing mould
Block.The processing module receives the finger print information after receiving the wake-up signal, and by the finger print information with prestore
Sample fingerprint be compared, to be verified to the finger print information.The side of parallel communications is used by the touch module
Formula, which synchronizes wake-up signal, is sent to target mould group, so that fingerprint recognition speed is accelerated, user experience gets a promotion.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is one of the functional block diagram of fingerprint identification device that this hair embodiment provides.
Fig. 2 is the flow chart of fingerprint identification method provided in an embodiment of the present invention.
Fig. 3 is the two of the functional block diagram of fingerprint identification device provided in an embodiment of the present invention.
Fig. 4 is the flow chart of the sub-step of step S1 in Fig. 2.
Fig. 5 is the flow chart of the sub-step of step S2 in Fig. 2.
Fig. 6 is one of the flow chart of sub-step of step S3 in Fig. 2.
Fig. 7 is two of the flow chart of the sub-step of step S3 in Fig. 2.
Icon: 1- fingerprint identification device；10- processing module；20- display surface template die group；21- third control unit；22- is aobvious
Show panel；30- touch module；31- first control unit；The first sensing unit of 32-；40- fingerprint recognition mould group；41- second is controlled
Unit processed；The second sensing unit of 42-.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
The prior art one:
Touch IC wakes up AP after detecting that finger touches, and the wakeup time of AP is longer, is limited by different main control platforms
Performance, generally 50-500ms.AP wakes up Driver IC after being waken up, then through MIPI interface, and sends finger pressing
Location information shows unlock image on the screen.Most short the time required to this process is 100ms, the unlock figure to mobile phone screen
After the completion of display, AP wakes up Fingerprint IC again and opens fingerprint collecting, since collection process needs to undergo exposure, charge
Accumulation and image reading, required time is longer, about 200ms or so.Therefore fingerprint technique always unlocks under optical profile type screen
Time about 700~800ms, overall fingerprint recognition required time is longer, speed is slower.
The prior art two:
On the basis of the prior art one, the scheme of scanning mode is kept using the Fingerprint IC moment, is saved
The time that AP wakes up, but the power consumption of mobile phone is increased, while reducing the service life of sensor.
The prior art three:
On the basis of the prior art one, fingerprint identification region increases a pressure sensor, after screen stress
It can start to scan.Although more power saving, the cost of complete machine is increased, also increases the complexity of system structure.
Inventor is had found based on the studies above, proposes that a kind of fingerprint identification device, mobile terminal and fingerprint identification method come
It solves the above problems.
Referring to Fig. 1, the embodiment of the present invention, which is based on the studies above discovery, provides a kind of fingerprint identification device 1, it is applied to
Mobile terminal, described device include: touch module 30 and the display surface template die group 20 being separately connected with the touch module 30,
Fingerprint recognition mould group 40 and processing module 10, the fingerprint recognition mould group 40 and display surface template die group 20 also with the processing mould
Block 10 connects.
The touch module 30 for detecting touch control operation, and sends wake-up signal to the display surface template die group 20, institute
State fingerprint recognition mould group 40 and the processing module 10.
The display surface template die group 20 shows the first image prestored after receiving the wake-up signal.
The fingerprint recognition mould group 40 acquires the corresponding finger of the touch control operation after receiving the wake-up signal
Line information, and the finger print information is sent to the processing module 10.
The processing module 10 receives the finger print information after receiving the wake-up signal, and by the fingerprint
Information is compared with the sample fingerprint prestored, to verify to the finger print information.
Specifically, touch module 30 described in the embodiment of the present invention, including first interface, second interface, third interface and
4th interface；
The touch module, for sending wake-up signal to the display surface template die group 20 by the first interface.It is special
Not, in embodiments of the present invention, the first interface can be integration integrated circuits bus interface (I2C), the touch-control mould
Group 30 sends wake-up signal to the display panel by the IC bus interface and using IC bus agreement
Mould group 20.
The touch module, for sending wake-up signal to the fingerprint recognition mould group 40 by the second interface.It is special
Not, in embodiments of the present invention, the second interface can be bus and expand interface (GPIO), the touch module 30, lead to
The bus is crossed to expand interface and expand interface protocol transmission wake-up signal to the fingerprint recognition mould group 40 using bus.
The touch module 30, for sending wake-up signal to the fingerprint recognition mould group 40 by the third interface.
Particularly, in embodiments of the present invention, the third interface can be Serial Peripheral Interface (SPI) (SPI), the touch module 30, lead to
It crosses the Serial Peripheral Interface (SPI) and wake-up signal is sent to the fingerprint recognition mould group 40 using serial peripheral interface protocol.
The touch module 30, for sending wake-up signal to the processing module 10 by the 4th interface.Especially
Ground, in the embodiment of the present invention, the 4th interface can be interrupt interface, and the touch module 30 passes through the interrupt interface
And wake-up signal is sent to the processing module 10 using interrupt interface agreement.
The embodiment of the present invention also provides a kind of mobile terminal, including above-mentioned fingerprint identification device 1.
Optionally, the concrete type of the mobile terminal is unrestricted, for example, it may be, but be not limited to, smart phone,
PC (personal computer, PC), tablet computer, personal digital assistant (personal digital
Assistant, PDA), mobile internet surfing equipment (mobile Internet device, MID), vehicle-mounted computer and point-of-sale terminal
(point ofsale, POS) etc. is using the fingerprint identification module being embedded under screen, or is integrated in the mobile terminal
Fingerprint identification module, to be unlocked, pay or the equipment of authentication.
The embodiment of the present invention also provides a kind of fingerprint identification method, is applied to fingerprint identification device 1, referring to Fig. 2, described
Fingerprint identification device 1 includes touch module 30 and the display surface template die group 20 being separately connected with the touch module 30, fingerprint
Identify mould group 40 and processing module 10, the fingerprint recognition mould group 40 and display surface template die group 20 also with the processing module 10
Connection, which comprises
S1, the touch module 30 after detecting touch control operation, send wake-up signal to the display surface template die group 20,
The fingerprint recognition mould group 40 and the processing module 10.
Particularly, Fig. 3 and Fig. 4 is please referred to, as one of embodiment of the present invention embodiment, the touch-control mould
Group 30 includes first control unit 31 and the first sensing unit 32, and the touch module 30 is sent after detecting touch control operation
Wake-up signal to the step of display surface template die group 20, the fingerprint recognition mould group 40 and processing module 10 includes:
S11, first sensing unit 32 generate trigger signal after detecting touch control operation, and by the trigger signal
It is sent to the first control unit 31.
S12 after the first control unit 31 receives the trigger signal, sends wake-up signal to the display panel
Mould group 20, the fingerprint recognition mould group 40 and the processing module 10.
The trigger signal can be, under bright screen state by primary processor send fingerprint authentication request or put out screen or
Finger touch signal under screen lock state.Wherein, the touch signal can be user with finger slide or press screen belt come
Signal intensity.
Specifically, first sensing unit 32 may include touch sensing (Touch Position Sensor, TP
Sensor), the first control unit 31 may include touch panel control chip (Touch-Screen Controller).
The touch panel control chip can measure micro capacitance variation by the touch sensing, cross noise filtering and judgement
Whether stylus auxiliary operation is used.
S2 shows the first image prestored after the display surface template die group 20 receives the wake-up signal.
Please refer to 3 and Fig. 5, in the embodiment of the present invention, the display surface template die group 20 includes third control unit 21
And display panel 22, after the display surface template die group 20 receives the wake-up signal, the step of showing the first image prestored
Include:
S21, the third control unit 21 are initialized after receiving the wake-up signal.
S22, the third control unit 21 control the first figure that the display of display panel 22 prestores after completing initialization
Picture.
Wherein, the initialization includes in electrifying timing sequence control, resetting control, pattern switching and output pin number setting
It is at least one.
In one embodiment, the partial zones of the display surface template die group 20 are arranged in the fingerprint recognition mould group 40
The fingerprint detection effective range of domain or the fingerprint recognition mould group 40 only covers the partial zones of the display surface template die group 20
Domain.In this case, user itself and the fingerprint detection effective range of the display surface template die group 20 can not be perceived, if user
When carrying out fingerprint recognition operation, its finger deviates the fingerprint in the pressing of the display surface template die group 20 or sliding area
Effective range is detected, then the fingerprint recognition mould group 40 can not may normally detect the finger print information of user, therefore user
It may need repeatedly to attempt fingerprint identification region, this not only influences fingerprint detection efficiency, also reduction user experience.
Therefore the first image described in this method is examined for the display surface template die group 20 according to working condition in fingerprint
Survey effective range show a prompt image, with guide user the fingerprint recognition mould group 40 fingerprint detection effective range into
The fingerprints input operation such as the pressing of row finger or sliding.Concrete shape, pattern, color or the style of the first image can be with
It is preset according to actual needs, or customized, the embodiment of the present invention pair can be carried out according to personal preference by user
This is with no restriction.
In the embodiment of the present invention, the third control unit 21 may include panel driving chip, the panel driving core
Piece is the key components and parts for driving the display panel 22, and the panel driving chip is with electric signal by image and data
Equal signals are sent to the display panel 22, show text and image on the display panel 22.
The display panel 22 can be OLED (Organic Light-Emitting Diode, organic light-emitting diodes
Pipe) display panel, LCD (Liquid Crystal Display, liquid crystal display) or PDP (Plasma Display Panel,
Plasmia indicating panel).
S3 acquires the corresponding fingerprint of the touch control operation after the fingerprint recognition mould group 40 receives the wake-up signal
Information, and the finger print information is sent to the processing module 10.
It please refers to 3 and Fig. 6, in the embodiment of the present invention, fixed shields lower fingerprint detection (the i.e. described finger for what is shielded comprehensively
The regional area of the display surface template die group 20 or the fingerprint inspection of the fingerprint recognition mould group 40 is arranged in line identification mould group 40
Survey the regional area that effective range only covers the display surface template die group 20.) for, the fingerprint recognition mould group 40 includes the
Two control units 41 and the second sensing unit 42, after the fingerprint recognition mould group 40 receives the wake-up signal, described in acquisition
The step of touch control operation corresponding finger print information includes:
S31A, second control unit 41 are initialized after receiving the wake-up signal.
S32A, second sensing unit 42 acquire the corresponding touch-control image of the touch control operation, and by the touch-control figure
As being sent to second control unit 41.
S33A, second control unit 41 handle to obtain the touch control operation pair the touch-control image received
The finger print information answered.
Second control unit 41 may include fingerprint recognition chip (Fingerprint Recognition IC), institute
Stating the second sensing unit 42 may include fingerprint image sensor (Fingerprint Sensor).The fingerprint recognition chip is logical
After crossing fingerprint image sensor acquisition fingerprint image (i.e. above-mentioned touch-control image), by image procossing, it is special to extract image
Sign, using the angle and distance between characteristic point, defines a feature templates, its geometrical relationship is being converted into data letter
Breath identifies identity to carry out fingerprint comparison.
Particularly, 3 and Fig. 7 are please referred to, for lower fingerprint detection (the i.e. described fingerprint recognition mould of comprehensive screen shielded comprehensively
The whole region of the display surface template die group 20 or the effective model of fingerprint detection of the fingerprint recognition mould group 40 is arranged in group 40
Enclose the whole region for covering the display surface template die group 20.) for, since the position of detection fingerprint is not fixed, described the
After one control unit 31 receives the trigger signal, sends wake-up signal to the display surface template die group 20, the fingerprint and know
After the step of other mould group 40 and the processing module 10, the method also includes:
The trigger signal of 31 pairs of first control unit acquisitions is handled to obtain the corresponding position of the touch control operation
Confidence breath, and the location information is sent to the fingerprint recognition mould group 40.
For the lower fingerprint detection of the comprehensive screen shielded comprehensively, the fingerprint recognition mould group 40 receives the wake-up signal
Afterwards, acquiring the step of touch control operation corresponds to finger print information includes:
S31B, second control unit 41 are initialized after receiving the wake-up signal.
S32B, second sensing unit 42 according to the positional information, acquire the location information corresponding position
The touch-control image of the touch control operation, and the touch-control image is sent to second control unit 41.
S33B, second control unit 41 are handled the touch-control image data received to obtain the touch-control behaviour
Make corresponding finger print information.
Specifically, the fingerprint image sensor can use optical image sensor (Optical Fingerprint
Sensor), ultrasonography sensor (Ultrasoinc Fingerprint Sensor) or full frame identifying schemes (Display
Fingerprint Solution,DFS)。
When specifically, using the optical image sensor, the optical image sensor is placed in the display surface
22 side of plate, illuminates fingerprint by light source, wherein the light source can be mobile terminal and issue infrared light or display panel 22 certainly
It shines.Then, somatic fingerprint image is obtained using the interference fringe of the refracted light of fingerprint.More principles and implementation steps can
With reference to the prior art, this will not be repeated here.
When specifically, using the ultrasonography sensor, specific frequency is issued by the fingerprint recognition mould group 40
Ultrasonic scanning finger because ultrasonic wave has the ability of penetrable material, and the suction of finger lines and other materials to sound wave
Receipts, reflection and penetration degree are different, therefore, the air of ridge and paddy institute using skin and to(for) the difference fingerprint of sound impedance
Position identified, so that it may distinguish fingerprint ridge and the position where valley.Ultrasonic frequency used in ultrasonic technology
It is 1 × 104Hz-1×109Hz, energy are controlled in the degree lossless to human body (identical as the intensity of medical diagnosis).It is more former
Reason and implementation steps can refer to the prior art, and this will not be repeated here.
Specifically, full screen identifying schemes can support half screen even full frame identification, while multizone can be supported to refer to more
Line application.Main scheme is that non-silicon-based sinks to the bottom scheme (off-chip), i.e., fingerprint sensor is integrated on screen, chip is logical
The mode for crossing flip chip bonding techniques (Chip on Film, COF) is joined on screen, acquires fingerprint image data.More principles
And implementation steps can refer to the prior art, this will not be repeated here.
S4, the processing module 10 receive the finger print information after receiving the wake-up signal, and by the fingerprint
Information is compared with the sample fingerprint prestored, to verify to the finger print information.
In the embodiment of the present invention, after the step of finger print information is verified, if the finger print information with it is described pre-
The sample fingerprint deposited is consistent, then the processing module 10 controls the display surface template die group 20 and shows the second image prestored, with
Prompt fingerprint authentication passes through.
If the finger print information and the sample fingerprint prestored are inconsistent, the processing module 10 controls the display
Panel module 20 shows the third image prestored, to prompt fingerprint authentication not pass through.
The embodiment of the present invention also provides another embodiment, and in present embodiment, the fingerprint recognition mould group 40 can be with
It is fingerprint recognition and sensing chip (Fingerprint Sensor IC).Specifically, by fingerprint recognition chip (Fingerprint
IC it) is integrated into a chip with fingerprint image sensor (Fingerprint Sensor), to realize fingerprint recognition and figure simultaneously
As acquisition technique.
It should be noted that fingerprint recognition chip and finger when carrying out information exchange, in fingerprint recognition and sensing chip
Print image sensor directly transmits information by internal electric signal, without transmitting information by the communication interface, so that waking up
Time shortens, and 1 volume of the fingerprint identification device reduces.
When using fingerprint identification method provided in an embodiment of the present invention, other specific steps and beneficial effect be can refer to
The detailed description of corresponding steps in embodiment of the method is stated, it is no longer repeated herein.
The embodiment of the present invention also provides another embodiment, in present embodiment, the touch module 30 with it is described aobvious
Show that panel module 20 can be touch-control and panel driving integral chip (Touch and Display Driver
Integration,TDDI)。
It should be noted that the touch chip when carrying out information exchange, in the touch-control and panel driving integral chip
Information is directly transmitted by internal electric signal with panel driving chip, without transmitting information by the communication interface, so that calling out
The awake time shortens, and 1 volume of the fingerprint identification device reduces.
The embodiment of the present invention also provides another embodiment, in present embodiment, the touch module 30 and the finger
Line identification mould group 40 can be touch-control and fingerprint recognition integral chip (Touch and Fingerprint Integration,
TFI)。
It should be noted that the touch chip when carrying out information exchange, in the touch-control and fingerprint recognition integral chip
Information is directly transmitted by internal electric signal with fingerprint recognition chip, without transmitting information by the communication interface, so that calling out
The awake time shortens, and 1 volume of the fingerprint identification device reduces.
The embodiment of the present invention also provides other embodiments, in present embodiment, the touch module 30 and the fingerprint
Identification mould group 40 can be touch-control and panel driving integral chip (Fingerprint and Display Driver
Integration,FDDI)。
It should be noted that the touch chip when carrying out information exchange, in the touch-control and panel driving integral chip
Information is directly transmitted by internal electric signal with panel driving chip, without transmitting information by the communication interface, so that calling out
The awake time shortens, and 1 volume of the fingerprint identification device reduces.
When using fingerprint identification method provided in an embodiment of the present invention, other specific steps and beneficial effect be can refer to
The detailed description of corresponding steps in embodiment of the method is stated, details are not described herein.
In conclusion the embodiment of the invention provides a kind of fingerprint identification device 1, mobile terminal and fingerprint identification methods.
Through touch module 30 after detecting touch control operation, wake-up signal is sent to display surface template die group 20, fingerprint recognition mould group 40
And processing module 10.After the display surface template die group 20 receives the wake-up signal, the first image prestored is shown.It is described
After fingerprint recognition mould group 40 receives the wake-up signal, the corresponding finger print information of the touch control operation is acquired, and by the finger
Line information is sent to the processing module 10.The processing module 10 receives the fingerprint after receiving the wake-up signal
Information, and the finger print information is compared with the sample fingerprint prestored, to be verified to the finger print information.Pass through institute
It states touch module 30 and is synchronized wake-up signal by the way of parallel communications and be sent to target mould group, so that fingerprint recognition speed adds
Fastly, user experience gets a promotion.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
Architectural framework in the cards, function and the behaviour of devices in accordance with embodiments of the present invention, method and computer program product
Make.In this regard, each box in flowchart or block diagram can represent a part of a module, section or code, institute
The a part for stating module, section or code includes one or more executable instructions for implementing the specified logical function.
It should also be noted that function marked in the box can also be to be different from attached drawing in some implementations as replacement
The sequence marked occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes can also be by
Opposite sequence executes, and this depends on the function involved.It is also noted that each box in block diagram and or flow chart,
And the combination of the box in block diagram and or flow chart, hardware can be based on the defined function of execution or the dedicated of movement
System realize, or can realize using a combination of dedicated hardware and computer instructions.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.It can be
Mechanical connection, is also possible to be electrically connected.It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of fingerprint identification device, which is characterized in that described device includes: touch module and distinguishes with the touch module
Display surface template die group, fingerprint recognition mould group and the processing module of connection, the fingerprint recognition mould group and display surface template die group are also
It is connect with the processing module；
The touch module for detecting touch control operation, and sends wake-up signal to the display surface template die group, the fingerprint and knows
Other mould group and the processing module；
The display surface template die group shows the first image prestored after receiving the wake-up signal；
The fingerprint recognition mould group acquires the corresponding finger print information of the touch control operation after receiving the wake-up signal,
And the finger print information is sent to the processing module；
The processing module receives the finger print information after receiving the wake-up signal, and by the finger print information with
The sample fingerprint prestored is compared, to verify to the finger print information.
2. fingerprint identification device according to claim 1, which is characterized in that the touch module, including first interface,
Two interfaces, third interface and the 4th interface；
The touch module, for sending wake-up signal to the display surface template die group by the first interface；
The touch module, for sending wake-up signal to the fingerprint recognition mould group by the second interface；
The touch module, for sending wake-up signal to the fingerprint recognition mould group by the third interface；
The touch module, for sending wake-up signal to the processing module by the 4th interface.
3. a kind of mobile terminal, which is characterized in that including fingerprint identification device of any of claims 1 or 2.
4. a kind of fingerprint identification method, which is characterized in that applied to fingerprint identification device described in claim 1-3 any one,
The fingerprint identification device includes touch module and the display surface template die group, the fingerprint recognition that are separately connected with the touch module
Mould group and processing module, the fingerprint recognition mould group and display surface template die group are also connect with the processing module, the method
Include:
The touch module sends wake-up signal to the display surface template die group, the fingerprint and knows after detecting touch control operation
Other mould group and the processing module；
After the display surface template die group receives the wake-up signal, the first image prestored is shown；
After the fingerprint recognition mould group receives the wake-up signal, the corresponding finger print information of the touch control operation is acquired, and will
The finger print information is sent to the processing module；
The processing module receives the finger print information after receiving the wake-up signal, and by the finger print information and in advance
The sample fingerprint deposited is compared, to verify to the finger print information.
5. fingerprint identification method according to claim 4, which is characterized in that the touch module includes first control unit
And first sensing unit, the touch module after detecting touch control operation, send wake-up signal to the display surface template die group,
The step of fingerprint recognition mould group and the processing module includes:
First sensing unit generates trigger signal after detecting touch control operation, and the trigger signal is sent to described
First control unit；
After the first control unit receives the trigger signal, wake-up signal is sent to the display surface template die group, described
Fingerprint recognition mould group and the processing module.
6. fingerprint identification method according to claim 5, which is characterized in that the first control unit receives the touching
After signalling, the step of wake-up signal to the display surface template die group, the fingerprint recognition mould group and the processing module is sent
After rapid, the method also includes:
The first control unit is handled the trigger signal of acquisition to obtain the corresponding location information of the touch control operation,
And the location information is sent to the fingerprint recognition mould group.
7. fingerprint identification method according to claim 6, which is characterized in that the fingerprint recognition mould group includes the second sensing
After the fingerprint recognition mould group receives the wake-up signal, it is corresponding to acquire the touch control operation for unit and the second control unit
Finger print information the step of include:
Second control unit is initialized after receiving the wake-up signal；
Second sensing unit according to the positional information, acquires the touch control operation of the location information corresponding position
Touch-control image, and the touch-control image is sent to second control unit；
Second control unit is handled the touch-control image received to obtain the corresponding fingerprint letter of the touch control operation
Breath.
8. fingerprint identification method according to claim 4, which is characterized in that the fingerprint recognition mould group includes the second control
After the fingerprint recognition mould group receives the wake-up signal, it is corresponding to acquire the touch control operation for unit and the second sensing unit
Finger print information the step of include:
Second control unit is initialized after receiving the wake-up signal；
Second sensing unit acquires the corresponding touch-control image of the touch control operation, and the touch-control image is sent to described
Second control unit；
Second control unit is handled the touch-control image received to obtain the corresponding fingerprint letter of the touch control operation
Breath.
9. fingerprint identification method according to claim 4, which is characterized in that the display surface template die group includes third control
Unit and display panel, after the display surface template die group receives the wake-up signal, the step of showing the first image prestored
Include:
The third control unit is initialized after receiving the wake-up signal；
The display panel, which is controlled, after the third control unit completion initialization shows the first image prestored.
10. fingerprint identification method according to claim 4, which is characterized in that the processing module is receiving described call out
It wakes up after signal, the finger print information is received, and the finger print information is compared with the sample fingerprint prestored, to the finger
After the step of line information is verified, the method also includes:
If the finger print information is consistent with the sample fingerprint prestored, the processing module controls the display surface template die group
The second image prestored is shown, to prompt fingerprint authentication to pass through；
If the finger print information and the sample fingerprint prestored are inconsistent, the processing module controls the display surface template die
The third image that group display prestores, to prompt fingerprint authentication not pass through.
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| CN201910592910.6A CN110414364A (en) | 2019-07-03 | 2019-07-03 | Fingerprint identification device, mobile terminal and fingerprint identification method |
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| CN201910592910.6A CN110414364A (en) | 2019-07-03 | 2019-07-03 | Fingerprint identification device, mobile terminal and fingerprint identification method |
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| CN112051941A (en) * | 2020-09-28 | 2020-12-08 | 京东方科技集团股份有限公司 | Method, circuit and device for synchronizing touch signals during in-screen fingerprint identification |
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