CN109766842A - Fingerprint collecting method and system - Google Patents
Fingerprint collecting method and system Download PDFInfo
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- CN109766842A CN109766842A CN201910030205.7A CN201910030205A CN109766842A CN 109766842 A CN109766842 A CN 109766842A CN 201910030205 A CN201910030205 A CN 201910030205A CN 109766842 A CN109766842 A CN 109766842A
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Abstract
The present invention provides a kind of fingerprint collecting method and systems, are related to physical characteristics collecting technical field, and this method is applied to display driver chip, the location information including receiving touch area；According to the brightness of the location information and preset first configuration information change touch area, so that read module reads the current finger print information of the touch area and issues the current finger print information；First configuration information includes color, brightness or shape.Fingerprint collecting method provided in an embodiment of the present invention and system can acquire fingerprint with automatic identification user touch location, full frame any position and identify, operation is more convenient, promotes user experience.
Description
Technical field
The present invention relates to physical characteristics collecting technical fields, more particularly, to a kind of fingerprint collecting method and system.
Background technique
Current phone fingerprint recognition has become one of necessary functions, and universal with what is shielded comprehensively, shields the need of lower fingerprint
Ask more more and more intense.And fingerprinting scheme includes two kinds under the screen applied now, one is optical fingerprint identifications, another
It is ultrasonic type fingerprint recognition.
Although optical finger print identification occupies most market, still there are many aspects needed to be improved in use.
For example, the identification region of fixed position optical fingerprint exists for the user for already being familiar with capacitance type fingerprint home key
Can not directly it judge from appearance before wake-up, moreover, going to complete to unlock to move according to indicating area even if being also required to user upon awakening
Make, such operation is not convenient enough, and user experience is not good enough yet.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of fingerprint collecting method and system, it can be with automatic identification user
Touch location, full frame any position acquire fingerprint and identify, operation is more convenient, promotes user experience.
In a first aspect, being applied to display driver chip the embodiment of the invention provides a kind of fingerprint collecting method, comprising:
Receive the location information of touch area；The brightness of touch area is changed according to the location information and preset first configuration information,
So that read module reads the current finger print information of the touch area and issues the current finger print information；First configuration information
Including color, brightness or shape.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
The step of stating the location information for receiving touch area, comprising: touch area is received from touch chip by Serial Peripheral Interface (SPI)
Location information.
Second aspect is applied to read chip the embodiment of the invention provides a kind of fingerprint collecting method, comprising: from answering
The location information of touch area is received with processor or from touch chip；When the touch area, which is shown driving chip, lights,
The current finger print information of the touch area is read according to the location information and preset second configuration information；Second configuration information
Including fingerprint collecting area size and scan pattern；The current finger print information is sent to application processor.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
The step of stating the location information that touch area is received from touch chip, comprising: by IC bus interface from touch chip
Receive the location information of touch area.
The third aspect, the embodiment of the invention provides a kind of fingerprint collecting methods, are applied to application processor, comprising: connect
Receive the location information for the touch area that touch chip is sent；The location information is sent to display driver chip to believe by the position
Breath and preset first configuration information light the touch area；First configuration information includes color, brightness or shape；By the position
Confidence breath is sent to the current finger for reading chip to read the touch area by the location information and preset second configuration information
Line information；Second configuration information includes fingerprint collecting area size and scan pattern；Receive the current of reading chip return
Finger print information.
In conjunction with the third aspect, the embodiment of the invention provides the first possible embodiments of the third aspect, wherein
After the step of location information for the touch area that above-mentioned reception touch chip is sent, further includes: judge that the location information is constituted
Target area whether be effective identification region, area can recognize not less than preset complete finger print of effective identification region
Face battle array.
In conjunction with the third aspect, the embodiment of the invention provides second of possible embodiments of the third aspect, wherein
It is above-mentioned that the location information is sent to display driver chip to light the touching by the location information and preset first configuration information
Before the step of touching region, further includes: when receiving the location information, be switched to operating mode from low-power consumption mode.
In conjunction with the third aspect, the embodiment of the invention provides the third possible embodiments of the third aspect, wherein
Before the step of location information for the touch area that above-mentioned reception touch chip is sent, further includes: wake up and be in low-frequency sweep mould
The touch chip of formula.
In conjunction with one of the first of the third aspect or the third aspect to the third possible embodiment, the embodiment of the present invention
Provide the 4th kind of possible embodiment of the third aspect, wherein above-mentioned that the location information is sent to the step for reading chip
Suddenly include: while the location information is sent to display driver chip, or delay preset time after, starting read core
The fingerprint collecting mode of piece；The location information is sent to the reading chip.
Fourth aspect, the embodiment of the invention provides a kind of fingerprint acquisition systems, comprising: processing module, touch-control module, drive
Dynamic model block and read module；The touch-control module is connect by Serial Peripheral Interface (SPI) with the drive module, and total by integrated circuit
Line interface is connect with the read module；The read module is connect with the processing module；The touch-control module is for obtaining screen touch
The location information in region, and the location information is sent respectively to drive module and read module；The drive module is used for basis
The brightness of the location information and preset first configuration information change touch area；First configuration information includes color, brightness
Or shape；The read module is used to read the current finger print of touch area according to the location information and preset second configuration information
Information, and the current finger print information is sent to processing module；Second configuration information includes fingerprint collecting area size and sweeps
Retouch mode.
The embodiment of the present invention bring it is following the utility model has the advantages that
A kind of fingerprint collecting method provided in an embodiment of the present invention and system, this method are applied to display driver chip, packet
Include the location information for receiving touch area；The bright of touch area is changed according to the location information and preset first configuration information
Degree, so that read module reads the current finger print information of the touch area and issues the current finger print information；First configuration
Information includes color, brightness or shape.Fingerprint collecting method provided in an embodiment of the present invention lights Petting Area according to location information
Automatic identification user touch location is realized in domain, and full frame any position acquires fingerprint and identifies, operation is more convenient, promotes user
Experience.
Other feature and advantage of the disclosure will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implement the disclosure above-mentioned technology it can be learnt that.
To enable the above objects, features, and advantages of the disclosure 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
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of fingerprint acquisition system provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of fingerprint collecting method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another fingerprint collecting method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another fingerprint collecting method provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another fingerprint acquisition system provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another fingerprint acquisition system provided in an embodiment of the present invention.
Icon: 20- application processor；21- touch chip；22- display driver chip；23- reads chip；24- photoelectricity two
Pole pipe sensor；61- location information receiving module；62- lights module；63- finger print information read module；64- finger print information connects
Receive module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, existing fingerprint collecting method is only limited to some limited area on screen, for the optics of fixed position
The identification region of fingerprint also can not directly judge that this makes the fingerprint collecting of screen operate or refer to accordingly before wake-up from appearance
Line identification unlock operation is all not convenient enough, affects the experience of user.Based on this, a kind of fingerprint provided in an embodiment of the present invention is adopted
Set method and system can acquire fingerprint with automatic identification user touch location, full frame any position and identify, operation is more just
Benefit promotes user experience.
For convenient for understanding the present embodiment, first to a kind of fingerprint collecting method disclosed in the embodiment of the present invention into
Row is discussed in detail.
Embodiment one:
It is a kind of structural schematic diagram of fingerprint acquisition system provided in an embodiment of the present invention referring to Fig. 1, it as seen from Figure 1, should
Fingerprint acquisition system includes application processor 20, and be respectively connected with the application processor 20 touch chip 21, display
Driving chip 22 and reading chip 23.The reading chip 23 is also connected with photodiode sensor 24.
Within the system, touch chip 21 is for will be reported to application processor 20 by the coordinate of touch area, and wakes up
The application processor 20.Display driver chip 22 is used to receive the location information of touch area and preset from application processor 20
First configuration information, first configuration information include display brightness, display shape, display color etc..Chip 23 is read to receive
The location information and preset configuration information for the touch area that application processor 20 is sent send photodiode sensor 24
Electric signal be converted to digital signal, and collected data are uploaded to application processor 20, to complete the acquisition of fingerprint.
Based on fingerprint acquisition system shown in FIG. 1, as shown in Fig. 2, being a kind of fingerprint collecting provided in an embodiment of the present invention
The flow chart of method, this method is applied to display driver chip, from Figure 2 it can be seen that the step of this method includes:
Step S202: the location information of touch area is received from application processor.
When finger touch screen, the contact portion of screen and finger is triggered, and the location information of touch area is recorded
Get off.In a kind of wherein embodiment, touch chip can by the compression of pressure sensor trigger mark touch area or
By capacitance detecting touch area, and obtain corresponding touch area location information.The location information shows touch area
Range.
Here, after the location information that touch chip obtains touch area, first the location information is sent to using processing
Device, then the location information is sent to display driver chip by application processor.
Step S204: lighting the touch area according to the location information and preset first configuration information, so as to read core
Piece reads the current finger print information of the touch area and the current finger print information is sent to application processor；This first match confidence
Breath includes color, brightness or shape.
Display driver chip obtain touch area location information after, it is also necessary to according to preset first configuration information into
Row lighting operation.Here, preset first configuration information can be pre-stored in display driver chip, be also possible to be pre-stored in application
In processor or touch chip.When first configuration information is pre-stored in application processor, then in the location information of touch area
When being handed down to display driver chip, also first configuration information is sent together.
Here, the first configuration information includes color, brightness or shape.Specifically, color is that display driver chip carries out a little
The color shown when bright screen can be white or other perceived colors.Brightness is the light levels of point bright area, can divide brightness
Grade distinguishes.Shape is the shape type of point bright area, can be round, rectangular or other shapes.In a variety of embodiment party
In formula, which can also include other parameters relevant to provincial characteristics is lighted.
Display driver chip is lighted after obtaining first configuration information according to information such as color, brightness and shape informations
The touch area.Here, for full frame, touch area is lit, and other regions of touch area are then in not by point
Bright state.
When touch area is lit, in a kind of wherein embodiment, full frame region is provided with photodiode biography
Sensor, the finger that the light irradiation for the touch area being lit touches, after the reflection of the light of finger fingerprint Wave crest and wave trough, triggering
The photodiode sensor in the region, it is concurrent that the reflected light signal received is converted to electric signal by photodiode sensor
Reading chip is given, reads chip to read current finger print information, and read-out finger print information is sent to using processing
Device.In this way, completing the acquisition to the finger print information of touch area.
A kind of fingerprint collecting method provided in an embodiment of the present invention, this method is applied to display driver chip, including receives
The location information of touch area；According to the brightness of the location information and preset first configuration information change touch area, so that
Read module reads the current finger print information of the touch area and issues the current finger print information；First configuration information includes
Color, brightness or shape.The fingerprint collecting method can be with automatic identification user touch location, and full frame any position acquisition fingerprint is simultaneously
Identification, operation is more convenient, promotes user experience.
It is equally based on fingerprint acquisition system shown in FIG. 1, referring to Fig. 3, for another fingerprint provided in an embodiment of the present invention
The flow chart of acquisition method, this method are applied to read chip, as seen from Figure 3, method includes the following steps:
Step S302: the location information of touch area is received from application processor.
In the present embodiment, reading chip corresponds to shown in FIG. 1 from the location information that application processor receives touch area
The situation of reading chip in fingerprint acquisition system.
When reading location information of the chip from application processor reception touch area, touch chip needs to will acquire first
To above-mentioned location information be sent to application processor, then reading chip is sent to by application processor.
Step S304: when the touch area, which is shown driving chip, lights, according to the location information and preset second
Configuration information reads the current finger print information of the touch area；Second configuration information includes fingerprint collecting area size and scanning
Mode.
Here, chip is read after the location information for obtaining touch area, it is also necessary to according to preset second configuration information
Carry out fingerprint read operation.Here, preset second configuration information, which can be pre-stored in, reads in chip, is also possible to be pre-stored in and answer
With in processor.When second configuration information is pre-stored in application processor, then issued by the location information of touch area
When to reading chip, also second configuration information is sent together.
In the case where touch area is lit, reads chip and adopted according to the second configuration information namely fingerprint that receive
Collect the parameters such as area size and scan pattern, reads the current finger print information of touch area.
Step S306: the current finger print information is sent to application processor.
Chip is read the finger print information is finally sent to application processor and is saved.
In another embodiment, as shown in figure 4, being the process of another fingerprint collecting method provided in this embodiment
Figure, this method are applied to application processor, from fig. 4, it can be seen that method includes the following steps:
Step S402: the location information for the touch area that touch chip is sent is received.
After screen is by the pressing of finger, pressurized zone is triggered, and touch chip detects the location information of touch area
And send it to application processor.
In general, in order to save energy consumption, touch chip is in low-frequency sweep mode when not being triggered.Therefore, touching is being received
Before the step of controlling the location information for the touch area that chip is sent, need to wake up the touch-control core for being in low-frequency sweep mode first
Piece.Here, there are many modes for waking up touch chip, can be waken up by gesture or movement.Wherein, wake up can be with for gesture
It is to double-click screen, sliding screen etc., movement, which wakes up, can be overturning, shakes etc..
Also, when application processor is when receiving the location information, application processor is also switched to from low-power consumption mode
Operating mode.
Step S404: the location information is sent to display driver chip by the location information and preset first configuration
Information lights the touch area；First configuration information includes color, brightness or shape.
In a kind of wherein possible embodiment, whether the target area that can first judge that the location information is constituted is to have
Identification region is imitated, is just issued location information in the case where being judged as effective situation, here, the area of effective identification region is not small
In the recognizable face of preset complete finger print battle array.For example, the face battle array of can recognize may be configured as the pixel array of 200*200.In this way, logical
Cross that prejudge to the validity of touch area can be to avoid the operation of some false triggerings.In actual operation, if judgement
The target area that location information is constituted is not effective identification region, can terminate the fingerprint recognition process, or can carry out mistake
It accidentally prompts, is operated with guiding user to carry out correctly fingerprint collecting.
Step S406: the location information is sent to and reads chip by the location information and preset second configuration information
Read the current finger print information of the touch area；Second configuration information includes fingerprint collecting area size and scan pattern.
In the present embodiment, while the location information is sent to display driver chip, or delay preset time
Later, start the fingerprint collecting mode for reading chip first；Then the location information is sent to the reading chip again.Read core
Piece reads the current finger print information of touch area according to the location information and preset second configuration information, and here, this second is matched
Confidence breath includes fingerprint collecting area size and scan pattern.
Step S408: the current finger print information of reading chip return is received.
After reading the acquisition that chip completes current finger print, current finger print information is returned into application processor and is saved.
Above-mentioned fingerprint collecting method provided in an embodiment of the present invention can be used for the scenes such as screen unlocked by fingerprint or fingerprint payment,
It takes the mobile phone as an example below and screen unlocked by fingerprint is illustrated.
In the present embodiment, mobile phone terminal includes fingerprint acquisition system as shown in Figure 1, and screen unlocked by fingerprint process is such as
Under:
Firstly, waking up touch chip, such as can be in several ways: double-click screen, sliding screen or overturning mobile phone,
It shakes mobile phone etc. and carries out wake operation.Finger press screen after, touch chip obtain finger pressing area coordinate, then on
Application processor is offered, and application processor is waken up.
Then, after receiving coordinate, application processor says the word to display driver chip to start fingerprint recognition mode,
Configuration information is issued into display driver chip simultaneously；And make its finger it is aobvious according to the color of characteristic, brightness, shape by region
Show.The error hair of some inoperative positions in order to prevent, if mobile phone bezel locations cannot constitute the smallest finger areas, can answer
Judgment mechanism is added after receiving coordinate with processor, to judge coordinate, if coordinate effectively if continue unlock operation,
Unlock process is terminated if invalid or carries out miscue.
Then, application processor is at the same time or the fingerprint collecting mode of delay certain time starting reading chip is prolonged here
Shi Qidong, which reads chip, can guarantee that display driver chip is normally shown, if it is starting simultaneously, then need the function that will be delayed
It is made in and reads in chip.Then, configuration information is handed down to reading chip, wherein configuration information includes that the region of fingerprint collecting is sat
Mark, size, scan pattern etc..After reading chip completion fingerprint collecting, data are uploaded to application processor.
Finally, completing the processes such as fingerprint recognition, unlock by software in application processor.It, can when carrying out fingerprint recognition
By extracting the characteristic value of current finger print, and it is compared with the characteristic value of preset fingerprint, if similarity reaches default
Value then passes through and solves lock screen, and enters desktop；If it fails, then prompting mistake.Here, miscue can be shown by screen
Prompt information can also pass through the other modes such as vibration.
In above-mentioned screen unlocked by fingerprint process, in order to save unlocked time, wake up criteria can be met in touch chip
While, also light screen.The serial action for lighting screen after software being identified so again becomes concurrent activity, shortens
Enter the time of desktop after being identified by, while screen display reminding information can be used.
Screen unlocked by fingerprint method provided in an embodiment of the present invention can be unlocked more with full frame any position fingerprint recognition
It is convenient and efficient.
Embodiment two:
In actual operation, photoelectricity is completed since optical fingerprint takes a long time (about tens to several hundred milliseconds)
The exposure of diode obtains enough useful signal amounts, therefore relative capacity formula fingerprint, and often the fingerprint collecting time is longer, this
Sample may reduce user experience.For this purpose, on the basis of example 1, a kind of fingerprint acquisition system is present embodiments provided,
The system includes: processing module, touch-control module, drive module and read module.Wherein, which is connect by serial peripheral
Mouth is connect with the drive module, and is connect by IC bus interface with the read module；The read module and the processing
Module connection；The touch-control module is used to obtain the location information in screen touch region, and the location information is sent respectively to drive
Dynamic model block and read module；The drive module is used to change touch area according to the location information and preset first configuration information
Brightness；First configuration information includes color, brightness or shape；The read module is used for according to the location information and preset
Second configuration information reads the current finger print information of touch area, and the current finger print information is sent to processing module；This
Two configuration informations include fingerprint collecting area size and scan pattern.
In a kind of wherein embodiment, processing module, touch-control module, drive module and the read module difference of the system
For application processor, touch chip, display driver chip and read chip.As shown in figure 5, being one kind of the fingerprint acquisition system
Structural schematic diagram, which system reduces the participations of application processor 20, to save the time for waking up application processor 20.
Specifically, in fingerprint acquisition system shown in Fig. 5, including application processor 20, touch chip 21, display driving
Chip 22 and reading chip 23.Wherein, the touch chip 21 by SPI (Serial Peripheral Interface, serially
Peripheral Interface) interface or MIPI (MobileIndustryProcessorInterface, mobile industry processor interface) interface
Connect with the display driver chip 22, and by I2C (Inter-Integrated Circuit, IC bus) interface with
The reading chip 23 connection；The reading chip 23 is connect with application processor 20.
Within the system, touch chip 21 is used to obtain the location information in screen touch region, and the location information is divided
It is not sent to display driver chip 22 and reads chip 23；Display driver chip 22 is used for according to the location information and preset the
One configuration information lights touch area；First configuration information includes color, brightness or shape；The reading chip is used for according to position
Confidence breath and preset second configuration information read the current finger print information of touch area, and the current finger print information is sent to
Application processor 20；Second configuration information includes fingerprint collecting area size and scan pattern.
In at least one possible embodiment, after touch chip 21, which detects, effectively touches pressing, touched
The location information in region, then, touch chip 21 can directly initiate the fingerprint recognition mould of display driver chip 22 by SPI interface
Formula, and relevant configuration is issued to display driver chip 22, including display brightness, display shape, display color etc..Also, it is same
When or delay after a certain period of time, touch chip 21 can be started by I2C interface reads chip 23, and sends corresponding configuration, wraps
Area coordinate, size, the scan pattern etc. of fingerprint collecting are included, so as to read the current finger print letter that chip 23 obtains touch area
Breath, and collected finger print information is uploaded to application processor 20, to complete the acquisition of fingerprint.Fingerprint shown in Fig. 3 is adopted
Collecting system saves the interaction between fingerprint collecting process initial stage multiple chips and application processor 20, can save significantly on operation
Time.
Based on fingerprint acquisition system shown in fig. 5, the embodiment of the invention provides a kind of fingerprint collecting methods, are applied to aobvious
Show driving chip, the step of this method includes:
Step 1: receiving the location information of touch area from touch chip.
Here, which is directly sent to by display driver chip by touch chip, at this point, touch chip and display
Driving chip can be connected by SPI interface, and location information is sent to display driver chip by the SPI interface.
Step 2: the touch area is lighted according to the location information and preset first configuration information, so as to read chip
It reads the current finger print information of the touch area and the current finger print information is sent to application processor；First configuration information
Including color, brightness or shape.
Display driver chip obtain touch area location information after, it is also necessary to according to preset first configuration information into
Row lighting operation.Here, preset first configuration information can be pre-stored in display driver chip, be also possible to be pre-stored in touch-control
In chip.When first configuration information is pre-stored in touch chip, then the location information of touch area is being handed down to display
When driving chip, also first configuration information is sent together.
Display driver chip is lighted after obtaining first configuration information according to information such as color, brightness and shape informations
The touch area, also, read chip and read the current finger print information of the touch area and be sent to application processor.
It is equally based on fingerprint acquisition system shown in fig. 5, the embodiment of the invention provides another fingerprint collecting methods, should
Method is applied to read chip, method includes the following steps:
Step 1: receiving the location information of touch area from touch chip.
Here, the location information that chip receives touch area from touch chip is read, without first sending location information
To application processor.At this point, touch chip can be connected by I2C interface with chip is read, to be believed position by the I2C interface
Breath is sent to reading chip.
Step 2: being matched when the touch area is shown driving chip and lights according to the location information and preset second
Confidence breath reads the current finger print information of the touch area；Second configuration information includes fingerprint collecting area size and scanning mould
Formula.
Step 3: the current finger print information is sent to application processor.
In addition, the embodiment of the invention provides another fingerprint collecting methods, method includes the following steps:
Step 1: display driver chip receives the location information of touch area from touch chip, and by the location information and
Preset first configuration information lights touch area；First configuration information includes color, brightness or shape；
Above-mentioned location information is received from touch chip step 2: reading chip, and when the touch area is lit by this
Location information and preset second configuration information read the current finger print information of touch area；Second configuration information includes fingerprint
Pickup area size and scan pattern；
The current finger print information is sent to application processor step 3: reading chip.
Because the specific implementation of above steps has been described later in detail in example 1, thus it is no longer superfluous herein
It states.
In the fingerprint acquisition system that above-described embodiment one and embodiment two provide, 24 full screen of photodiode sensor
Setting, when any position of screen is touched, touch chip 21 can be with the location information of automatic identification touch area, and lights the spy
Fixed touch area, meanwhile, it reads chip 23 and fingerprint reading pointedly is carried out to the touch area after lighting, realize full frame
Location fingerprint of anticipating acquisition, and it is sent to the preservation of application processor 20, the mode of this full frame any position fingerprint collecting operates more
Add convenience, effectively improves the experience of user.
Embodiment three:
In addition, the embodiment of the invention also provides a kind of fingerprint acquisition systems, as shown in fig. 6, being the fingerprint acquisition system
Structural schematic diagram, as seen from Figure 6, which includes sequentially connected location information receiving module 61, lights module 62, fingerprint
Information reading module 63 and finger print information receiving module 64, wherein the function of modules is as follows:
Location information receiving module 61, the location information of the touch area for receiving touch chip transmission；
Light module 62, for by the location information and preset first configuration information be sent to display driver chip with by
First configuration information lights touch area；First configuration information includes color, brightness and shape；
Finger print information read module 63, for the location information and preset second configuration information to be sent to reading chip
To read the current finger print information of touch area by second configuration information；Second configuration information includes that fingerprint collecting region is big
Small and scan pattern；
Finger print information receiving module 64, for receiving the current finger print information of reading chip return.
Fingerprint acquisition system provided in an embodiment of the present invention has identical with fingerprint collecting method provided by the above embodiment
Technical characteristic reach identical technical effect so also can solve identical technical problem.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, section or code of table, a part of the module, section or code include one or more use
The executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually base
Originally it is performed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that
It is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute rule
The dedicated hardware based system of fixed function or movement is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " 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
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.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 collecting method, which is characterized in that be applied to display driver chip, comprising:
Receive the location information of touch area；
The brightness of the touch area is changed with preset first configuration information according to the positional information, so that read module is read
Take the current finger print information of the touch area and by the current finger print delivering；First configuration information includes face
Color, brightness or shape.
2. fingerprint collecting method according to claim 1, which is characterized in that the location information for receiving touch area
Step, comprising:
The location information of touch area is received from touch-control module by Serial Peripheral Interface (SPI).
3. a kind of fingerprint collecting method, which is characterized in that be applied to read chip, comprising:
The location information of touch area is received from application processor or from touch chip；
When the touch area, which is shown driving chip, lights, read according to the positional information with preset second configuration information
Take the current finger print information of the touch area；Second configuration information includes fingerprint collecting area size and scan pattern；
The current finger print information is sent to the application processor.
4. fingerprint collecting method according to claim 3, which is characterized in that described to receive touch area from touch chip
The step of location information, comprising:
The location information of touch area is received from touch chip by IC bus interface.
5. a kind of fingerprint collecting method, which is characterized in that be applied to application processor, comprising:
Receive the location information for the touch area that touch chip is sent；
The location information is sent to display driver chip to light by the location information and preset first configuration information
The touch area；First configuration information includes color, brightness or shape；
The location information is sent to and reads chip by described in the location information and the reading of preset second configuration information
The current finger print information of touch area；Second configuration information includes fingerprint collecting area size and scan pattern；
Receive the current finger print information that the reading chip returns.
6. fingerprint collecting method according to claim 5, which is characterized in that in the touch that the reception touch chip is sent
After the step of location information in region, further includes:
Whether the target area for judging that the location information is constituted is effective identification region, and the area of effective identification region is not
Less than the recognizable face battle array of preset complete finger print.
7. fingerprint collecting method according to claim 5, which is characterized in that it is described the location information is sent to it is aobvious
Before showing the step of driving chip is to light the touch area by the location information and preset first configuration information, also wrap
It includes:
When receiving the location information, operating mode is switched to from low-power consumption mode.
8. fingerprint collecting method according to claim 5, which is characterized in that in the touch that the reception touch chip is sent
Before the step of location information in region, further includes:
Wake up the touch chip for being in low-frequency sweep mode.
9. according to the described in any item fingerprint collecting methods of claim 5-8, which is characterized in that described to send out the location information
Giving the step of reading chip includes:
While the location information is sent to display driver chip, or after delay preset time, starting reads core
The fingerprint collecting mode of piece；
The location information is sent to the reading chip.
10. a kind of fingerprint acquisition system characterized by comprising processing module, touch-control module, drive module and read module；
The touch-control module is connect by Serial Peripheral Interface (SPI) with the drive module, and passes through IC bus interface and the reading
The connection of modulus block；The read module is connect with the processing module；
The touch-control module is used to obtain the location information in screen touch region, and the location information is sent respectively to described
Drive module and the read module；
The drive module is for changing the bright of the touch area with preset first configuration information according to the positional information
Degree；First configuration information includes color, brightness or shape；
The read module is for reading working as the touch area with preset second configuration information according to the positional information
Preceding finger print information, and the current finger print information is sent to the processing module；Second configuration information includes that fingerprint is adopted
Collect area size and scan pattern.
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Application publication date: 20190517 |