CN109145849A - A kind of fingerprint imaging method and device for terminal device - Google Patents
A kind of fingerprint imaging method and device for terminal device Download PDFInfo
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- CN109145849A CN109145849A CN201811004304.XA CN201811004304A CN109145849A CN 109145849 A CN109145849 A CN 109145849A CN 201811004304 A CN201811004304 A CN 201811004304A CN 109145849 A CN109145849 A CN 109145849A
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- 238000004590 computer program Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005090 crystal field Methods 0.000 description 5
- 230000006854 communication Effects 0.000 description 4
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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
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
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Abstract
The embodiment of the invention discloses a kind of terminal device, for the fingerprint imaging method and device of terminal device, the terminal device includes display screen and the photosensitive sensor under display screen, it further include solving the problems, such as that fingerprinting scheme focal length in the prior art is easy to happen variation and cannot focus leads to image blur set on the liquid crystal layer between display screen and photosensitive sensor, and the controller embodiment of the present invention of control liquid crystal layer focusing.
Description
Technical field
This application involves field of terminal equipment more particularly to a kind of fingerprint imaging method and devices for terminal device.
Background technique
With the development of mobile phone, shields lower fingerprint technique and also generate therewith, fingerprint can be accomplished screen in the following, being both able to achieve screen
The display of curtain, and it is able to achieve fingerprint identification function, this brings feasible scheme to screen comprehensively, also, fingerprint recognition accomplishes to shield
Curtain is in the following, the space of preposition fingerprint can be saved, to realize comprehensive fingerprint truly.
Currently, it is all the photoelectricity fingerprint schemes used that fingerprint is most of under the screen used, a fingerprint mould is put below screen
Group, the imaging of mould group are realized that multiplexing screen is shown by photosensitive sensor sensor, to have the function that shield lower fingerprint recognition.But
Be, under traditional screen fingerprint schemes generally user in actual use, due to being bonded gap (fitting inadequate) in finger or making
It after being easy to cause focal length to change under the scenes such as user's pad pasting, cannot focus, so as to cause image blur, influence fingerprint
Discrimination.
Summary of the invention
The embodiment of the present invention provides a kind of terminal device, the fingerprint imaging method and device for terminal device, to solve
Fingerprinting scheme focal length in the prior art is easy to happen variation and the problem of leading to image blur of cannot focusing.
In order to solve the above technical problems, the present invention is implemented as follows:
In a first aspect, a kind of terminal device, the photosensitive sensor including display screen and under the display screen, feature
It is, further includes set on the liquid crystal layer between the display screen and the photosensitive sensor, and the control liquid crystal layer focusing
Controller.
Second aspect provides a kind of fingerprint imaging method for terminal device comprising:
In response to the touch control operation of the display screen to terminal device, the finger of the touch control operation is obtained by photosensitive sensor
Line pattern；
When the clarity of the fingerprint pattern is unsatisfactory for preset condition, liquid crystal layer is adjusted so that the fingerprint pattern is in institute
Imaging of focusing in photosensitive sensor is stated, the liquid crystal layer is set between the display screen and the photosensitive sensor.
The third aspect provides a kind of fingerprint imaging device for terminal device, comprising:
Photosensitive sensor obtains the fingerprint of the touch control operation in response to the touch control operation of the display screen to terminal device
Pattern；
Liquid crystal layer, between the display screen and the photosensitive sensor, the liquid crystal layer includes liquid crystal driver, institute
Liquid crystal driver is stated for when the clarity of the fingerprint pattern is unsatisfactory for preset condition, adjusting liquid crystal layer so that the fingerprint
Pattern is focused imaging in photosensitive sensor.
Fourth aspect also provides a kind of computer-readable medium, stores computer program on the computer-readable medium,
The step of method as described in second aspect is realized when the computer program is executed by processor.
In embodiments of the present invention, terminal device can obtain fingerprint image by the photosensitive sensor being arranged under display screen
Case, and in the case where the clarity of fingerprint pattern is unsatisfactory for preset condition by setting display screen and photosensitive sensor it
Between liquid crystal layer be adjusted, fingerprint pattern can be made to carry out focusing imaging in photosensitive sensor.In this way, if due to finger plaster
Close gap or lead to that focal length changes when using pad pasting and can not be to defocused, can be by liquid crystal in liquid crystal layer
Field distribution adjusting realize fingerprint pattern focusing imaging.It is burnt so as to solve fingerprinting scheme in the prior art
Away from be easy to happen variation and cannot focus lead to image blur the problem of, to improve the discrimination of finger print information.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow chart of the fingerprint imaging method according to an embodiment of the invention for terminal device；
Fig. 2 is the schematic flow of the fingerprint imaging method in accordance with another embodiment of the present invention for terminal device
Figure；
Fig. 3 is the schematic flow of the fingerprint imaging method for terminal device of further embodiment according to the present invention
Figure；
Fig. 4 is the schematic flow of the fingerprint imaging method for terminal device of further embodiment according to the present invention
Figure；
Fig. 5 is the schematic flow of the fingerprint imaging method for terminal device accord to a specific embodiment of that present invention
Figure；
Fig. 6 is the schematic structure frame of the fingerprint imaging device according to an embodiment of the invention for terminal device
Figure；
Fig. 7 is the schematic structure frame of the fingerprint imaging device in accordance with another embodiment of the present invention for terminal device
Figure；
Fig. 8 is the schematic diagram of terminal device according to an embodiment of the invention；
Fig. 9 is the schematic working principle diagram of the liquid crystal in liquid crystal layer according to an embodiment of the invention；
Figure 10 is the structural schematic diagram of terminal device according to an embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with of the invention specific real
It applies example and technical solution of the embodiment of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment
It is only a part of the embodiment of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without making creative work belongs to what the present invention protected
Range.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
Generally, fingerprint schemes are photoelectricity fingerprint schemes under traditional screen, and the structure of photoelectricity fingerprint schemes is usually mould group
Lower section is a photosensitive sensor, is imaged by screen aperture (harboring holes) through screen, i.e. photoelectricity fingerprint mould group is logical
This mode is crossed to be imaged and identified.But this scheme may only generally accomplish fixed-focus, and can not achieve zoom,
Therefore, it when being bonded gap (fitting inadequate) in user's finger or using under the scenes such as sticking film for mobile phone, is easy so that fingerprint
Focal length changes, to cannot focus, the imaging for eventually leading to fingerprint relatively obscures and influence the discrimination of fingerprint.
In order to solve the above technical problems, as shown in Figure 1, the embodiment of the present invention provide a kind of fingerprint for terminal device at
Image space method, it may include:
S102. in response to the touch control operation of the screen to terminal device, the finger of touch control operation is obtained by photosensitive sensor
Line pattern needs to first pass through the modes such as user's finger pressing and touches the aobvious of terminal device that is, before the operation of starting fingerprint recognition
Display screen, to start to acquire finger print information, the photosensitive sensor under display screen can then obtain the fingerprint pattern of touch control operation.
S104. when the clarity of fingerprint pattern is unsatisfactory for preset condition, liquid crystal layer is adjusted so that fingerprint pattern is photosensitive
It focuses and is imaged in sensor, liquid crystal layer is set between display screen and photosensitive sensor.
After user presses screen, photosensitive sensor can receive fingerprint pattern, and sentence to the clarity of finger print information
It is disconnected, if the clarity of fingerprint pattern obtained is less than a preset threshold (preset condition) at this time, in adjustable liquid crystal layer
The field distribution of liquid crystal, so that the clarity of fingerprint pattern makes fingerprint pattern in photosensitive sensing when being greater than or equal to preset threshold
It focuses and is imaged in device.Certainly, if (clarity is big than more visible for the clarity of photosensitive sensor fingerprint pattern obtained at this time
In or equal to preset threshold), then at this moment fingerprint pattern can focus successfully in photosensitive sensor, it as a result, can be directly to fingerprint
Pattern carries out imaging operation.Optionally, clarity is also believed that stored fingerprint image in fingerprint pattern and terminal device
Case comparison, if there is matched result, then it is assumed that clarity meets preset condition；If without matched result, then it is assumed that clarity
It is unsatisfactory for preset condition.
Wherein, focusing is also named to light, is focused, by Focusing mechanism (photosensitive sensor sensor) variation object distance and apart
Clearly fingerprint image is compared to obtain in position.That is, after having acquired finger print information, by photosensitive sensor to finger print information
Focus operation is carried out, to prepare for the fingerprint image for obtaining situation and the discrimination for improving fingerprint.In addition, the number of preset threshold
Value range can be configured according to specific actual condition, be not described in detail herein.
In embodiments of the present invention, fingerprint imaging method obtains the fingerprint pattern of touch control operation by photosensitive sensor, so
Afterwards in the case where the clarity of fingerprint pattern is unsatisfactory for preset condition, adjusting is arranged between display screen and photosensitive sensor
Liquid crystal layer, the imaging so that fingerprint pattern is focused in photosensitive sensor.In this way, if since finger is bonded gap or using patch
Cause focal length to change when film and can not focus after (focusing failure), the electric field to liquid crystal in liquid crystal layer point can be passed through
The focusing imaging of fingerprint pattern is realized in the adjusting of cloth.Hair is easy so as to solve fingerprinting scheme focal length in the prior art
Changing and the problem of leading to image blur of cannot focusing, to improve the discrimination of finger print information.
Wherein, as shown in Fig. 2, the method for the embodiment of the present invention may also include that
If S106. finger print information focusing failure, readjusts the field distribution of liquid crystal, to change fingerprint focal length, and base
Fingerprint focal length after change makes fingerprint pattern focus in photosensitive sensor imaging.
That is, fingerprint pattern can in photosensitive sensor after by adjusting the field distribution of liquid crystal in liquid crystal layer
Can there can be the situation of focusing failure, at this point, can readjust in the liquid crystal layer being arranged between display screen and photosensitive sensor
The field distribution of liquid crystal, to make fingerprint pattern focus in photosensitive sensor imaging by changing fingerprint focal length.As a result, when due to
When finger is bonded gap or causes focal length to change when using pad pasting and can not focus and (focus and fail), it can lead to
Cross the imaging that finger print information is realized to the adjusting of the field distribution of liquid crystal in liquid crystal layer.So as to solve finger in the prior art
Line identifying schemes focal length is easy to happen variation and the problem of leading to image blur of cannot focusing, and improves the identification of finger print information
Rate.
In the above-described embodiments, it is illustrated in conjunction with Fig. 3, makes fingerprint pattern in photosensitive biography based on the fingerprint focal length after change
It focuses in sensor the operation of imaging, it may include: if based on the fingerprint focal length after change, fingerprint pattern is focused in photosensitive sensor
Success, then enable fingerprint pattern be imaged in photosensitive sensor, and form target fingerprint image；If burnt based on the fingerprint after change
It focuses in photosensitive sensor failure away from, fingerprint pattern, then continues the field distribution for adjusting liquid crystal in liquid crystal layer, until fingerprint image
Until case is focused successfully in photosensitive sensor.
After the field distribution by adjusting liquid crystal changes fingerprint focal length, fingerprint pattern still can be deposited in photosensitive sensor
Fingerprint pattern can be enabled to be imaged in photosensitive sensor if focused successfully in the situation of focusing success or failure, to form mesh
Mark fingerprint image；And when focus it is still failed when, then can again or continue adjust liquid crystal layer in liquid crystal field distribution, until refer to
Until line pattern is focused successfully in photosensitive sensor.As long as a result, since finger is bonded gap or using pad pasting etc.
In the case of cause focal length to change and can not focus (focusing failure) when, can pass through the field distribution to liquid crystal in liquid crystal layer
Adjusting realize finger print information imaging.So as to improve the discrimination of finger print information.
Wherein, the field distribution of liquid crystal is adjusted, it may include the voltage that liquid crystal layer is adjusted by liquid crystal driver makes liquid crystal layer
In liquid crystal different distributions is presented, make fingerprint pattern in photosensitive biography under fingerprint focal length and fingerprint focal length after the change to change
It focuses and is imaged in sensor.Also, liquid crystal layer is adjusted using the function-driven liquid crystal driver of phase-detection auto-focusing PDAF
Voltage, different distributions is presented to control liquid crystal, thus by the focusing of different fingerprint focal lengths, realizes successful mesh of focusing
, finally make to defocused finger print information imaging than more visible, to improve the discrimination of fingerprint.
In any of the above-described embodiment, as shown in figure 4, fingerprint imaging method may also include that
S108. it identifies and target fingerprint image is formed by defocused fingerprint pattern.
That is, the clarity of the fingerprint pattern according to acquired in photosensitive sensor, adjusts and is arranged in screen and photosensitive sensor
Between liquid crystal layer in liquid crystal field distribution so that fingerprint pattern is focused in photosensitive sensor, and according to fingerprint image
The result of case focusing carries out imaging operation to fingerprint pattern, so as to know to target fingerprint image obtained after imaging
Not.In this way, by the adjusting to liquid crystal field distribution in the liquid crystal layer between screen and photosensitive sensor is arranged in, can solve by
Gap is bonded in finger or causes focal length to change when using pad pasting and the asking of (focusing failure) of can not focusing
Topic, to obtain comparing clearly fingerprint image, therefore, is identified according to obtained clearly fingerprint image, finger can be improved
The discrimination of line.So as to solve fingerprinting scheme focal length in the prior art be easy to happen variation and cannot focus causes
Image blur influences the problem of finger print information discrimination.
In a specific embodiment, it is illustrated in combination with Fig. 1 to Fig. 5, the realization process of fingerprint imaging method can
With are as follows:
User's finger (generally finger is but it is also possible to be toe) presses the fingerprint recognition touching button of sub-screen, with response
To the touch control operation of terminal device screen, starts to acquire finger print information, the fingerprint image of touch control operation is obtained by photosensitive sensor
Case.Then, the field distribution that liquid crystal in liquid crystal layer is adjusted according to the clarity of fingerprint pattern, so that fingerprint pattern is in photosensitive sensing
It focuses and is imaged in device.If the clarity of fingerprint pattern meets preset condition (focusing successfully), directly fingerprint pattern is enabled to be imaged, with
Complete fingerprint recognition operation；And when clarity is unsatisfactory for preset condition (focusing is failed), then it is adjusted by liquid crystal driver
The field distribution of liquid crystal in liquid crystal layer to change fingerprint focal length, and makes fingerprint pattern photosensitive according to the fingerprint focal length after change
It focuses in sensor, to prepare to complete fingerprint imaging.Equally, for the fingerprint pattern of the fingerprint focal length after change photosensitive
Focusing in sensor can also have the case where focusing success or failure, here, if focusing successfully, equally enable fingerprint image
Case imaging continues or readjusts liquid crystal in liquid crystal layer to complete fingerprint recognition operation, and if focused not successfully
Field distribution, until fingerprint pattern is focused successfully in photosensitive sensor.
In this way, by liquid crystal field distribution in the liquid crystal layer being arranged between screen (display screen) and photosensitive sensor
It adjusts, can solve to be bonded gap due to finger or causes focal length to change when using pad pasting and can not focus
Therefore the problem of (focusing failure), is carried out with obtaining comparing clearly fingerprint image according to obtained clearly fingerprint image
Identification, can be improved the discrimination of fingerprint.Variation is easy to happen so as to solve fingerprinting scheme focal length in the prior art
And cannot focus cause image blur influence finger print information discrimination the problem of.
It should be noted that some executing subjects of each step of above-described embodiment institute providing method can be same set
It is standby, alternatively, this method can also be by distinct device as executing subject.For example, the executing subject of step S102, S104 can be same
One executing subject, and the executing subject of step S106 then can be another executing subject (such as control unit)；For another example, step
The executing subject of S102, S104, S106 all can be the same executing subjects etc..
The embodiment of the present invention also provides a kind of fingerprint imaging device for terminal device, should in conjunction with shown in Fig. 6 and Fig. 8
Fingerprint imaging device can include: photosensitive sensor 602 obtains touch-control in response to the touch control operation of the display screen to terminal device
The fingerprint pattern of operation；Liquid crystal layer 604, between display screen 612 and photosensitive sensor 602, liquid crystal layer 604 drives including liquid crystal
Dynamic device, liquid crystal driver 6042 are used for when the clarity of fingerprint pattern is unsatisfactory for preset condition, adjust liquid crystal layer so that fingerprint
Pattern is focused imaging in photosensitive sensor.
In embodiments of the present invention, clear as fingerprint imaging device fingerprint pattern acquired in photosensitive sensor 602
In the case that clear degree is unsatisfactory for preset condition, pass through finger print information acquired in the liquid crystal driver 6042 in liquid crystal layer 604
Clarity adjusts the field distribution of the liquid crystal of liquid crystal layer, the imaging so that fingerprint pattern is focused in photosensitive sensor.In this way, if by
Gap is bonded in finger or is caused focal length to change when using pad pasting and can not be focused after (focusing failure), it can
The imaging of finger print information is realized by the adjusting to the field distribution of liquid crystal in liquid crystal layer.It is in the prior art so as to solve
Fingerprinting scheme focal length is easy to happen variation and the problem of leading to image blur of cannot focusing, to improve the identification of finger print information
Rate.
In the above-described embodiments, if as shown in fig. 7, liquid crystal driver 6042 can be configured such that finger print information focusing failure,
The field distribution of liquid crystal is readjusted, to change fingerprint focal length, makes fingerprint pattern based on the fingerprint focal length after change in photosensitive biography
It focuses and is imaged in sensor.Wherein, liquid crystal driver 6042 can be configured to adjust the voltage of liquid crystal layer, make the liquid crystal in liquid crystal layer be in
Show different distributions, keeps fingerprint pattern right in photosensitive sensor under the fingerprint focal length to change fingerprint focal length, and after the change
Coke imaging.
It is illustrated in combination with Fig. 9, after photosensitive unit sensor carries out focus operation to finger print information, due to various originals
Because be likely to generate do not focus as a result, as illustrated in fig. 9.At this point, changing the electric field point of liquid crystal by liquid crystal driver 6042
Cloth, so that different distributions is presented in liquid crystal, as shown in figure 9b, so as to change fingerprint focal length, with burnt by the fingerprint changed
Away from making fingerprint pattern focus in photosensitive sensor imaging.As a result, when since finger is bonded gap or is using the feelings such as pad pasting
When causing focal length to change under condition and can not focus and (focus and fail), the tune to the field distribution of liquid crystal in liquid crystal layer can be passed through
Section realizes the imaging of finger print information.So as to solve fingerprinting scheme focal length in the prior art be easy to happen variation without
The problem of energy focusing leads to image blur, improve the discrimination of finger print information.
It in the above-described embodiments, further include that fingerprint imaging unit 606 may be additionally configured to: if burnt based on the fingerprint after change
Away from fingerprint pattern is focused successfully in photosensitive sensor 602, then enables fingerprint pattern be imaged in photosensitive sensor 602, and formed
Target fingerprint image；If fingerprint pattern is focused failure in photosensitive sensor based on the fingerprint focal length after change, then continue to drive
Liquid crystal driver 6042 adjusts the field distribution of liquid crystal in liquid crystal layer 604, until fingerprint pattern is focused in photosensitive sensor 602
Until success.
After the field distribution for adjusting liquid crystal by liquid crystal driver 6042 changes fingerprint focal length, fingerprint pattern is in photosensitive biography
The situation that still can have focusing success or failure in sensor 602 can pass through fingerprint imaging unit 606 if focused successfully
Fingerprint pattern is enabled to be imaged in photosensitive sensor, to form target fingerprint image；And when focusing still failed, then it can pass through liquid
Brilliant driver 6042 again or continues to adjust the field distribution of liquid crystal in liquid crystal layer, until fingerprint pattern is right in photosensitive sensor
Until coke success.As long as being bonded gap due to finger as a result, or causing focal length to change when using pad pasting
And can not focus (focusing failure) when, can be realized by the adjusting to the field distribution of liquid crystal in liquid crystal layer finger print information at
Picture.So as to improve the discrimination of finger print information.
In any of the above-described embodiment, fingerprint imaging device may also include fingerprint identification unit 608, focus for identification
Finger print information after success is formed by target fingerprint image.
It should be understood that the clarity of the fingerprint pattern according to acquired in photosensitive sensor 602, adjusts and is arranged in display screen 612
The field distribution of liquid crystal in liquid crystal layer 604 between photosensitive sensor 602, so that fingerprint pattern carries out in photosensitive sensor
Focusing, and imaging operation is carried out to fingerprint pattern according to the result of fingerprint pattern focusing, so as to pass through fingerprint identification unit
Obtained target fingerprint image identifies after 608 pairs of imagings.In this way, by be arranged in screen 612 and photosensitive sensor
The adjusting of liquid crystal field distribution in liquid crystal layer 608 between 604 can solve to be bonded gap due to finger or using pad pasting etc.
In the case of cause focal length to change and can not focus (focusing failure) the problem of, to obtain comparing clearly fingerprint image, because
This, is identified according to obtained clearly fingerprint image, the discrimination of fingerprint can be improved.So as to solve the prior art
In fingerprinting scheme focal length be easy to happen variation and cannot focus causes image blur to influence finger print information discrimination to ask
Topic.
That is, fingerprint imaging device described in any of the above-described embodiment passes through in photosensitive sensor 602 and display
Increase a liquid crystal film (liquid crystal layer 604) between screen 612, and liquid crystal row therein is controlled by the voltage of control liquid crystal layer 604
Column, to achieve the purpose that (difference in a manner of liquid crystal arrangement, light penetrate specific liquid crystal arrangement, light focusing to change fingerprint focal length
Focus Club it is different, to realize the zoom of fingerprint under screen), and finally realize according to the focal length after change pair of finger print information
Coke obtains clearly fingerprint imaging, to improve the discrimination of fingerprint.
Due to liquid crystal arrangement response quickly, rapid focus may be implemented, using liquid crystal motor instead of traditional voice coil VCM
Motor can make the space of terminal device obtain certain optimization.The fingerprint imaging device of the embodiment of the present invention or method
Realization process is fairly simple, and fingerprint imaging device will not the excessive structure space of occupied terminal equipment, circuit control mode
Also fairly simple, i.e., the function of motor zoom can be realized by increasing by a liquid crystal layer.Also, the fingerprint of the embodiment of the present invention at
As device or method rapidly adjust liquid crystal driver in combination with PDAF function, to achieve the purpose that rapid focus.So as to
Clearly fingerprint imaging is obtained, to improve the discrimination of fingerprint.
The embodiment of the present invention also provides a kind of terminal device, reference can be made to Fig. 8 is illustrated, it may include 612 He of display screen
Photosensitive sensor 602 under display screen further includes set on the liquid crystal layer between display screen 612 and photosensitive sensor 602
604, and the controller (not showed that in figure) of control liquid crystal layer focusing.
In embodiments of the present invention, terminal device can be referred to by the acquisition of photosensitive sensor 602 being arranged under display screen 612
Line pattern, and in the case where the clarity of fingerprint pattern is unsatisfactory for preset condition by be arranged in display screen and photosensitive sensing
Liquid crystal layer between device is adjusted, and fingerprint pattern can be made to carry out focusing imaging in photosensitive sensor.In this way, if due to hand
Refer to fitting gap or lead to that focal length changes when using pad pasting and can not be to defocused, can be by liquid crystal layer
The focusing imaging of fingerprint pattern is realized in the adjusting of the field distribution of liquid crystal.So as to solve fingerprint recognition side in the prior art
Case focal length is easy to happen variation and the problem of leading to image blur of cannot focusing, to improve the discrimination of finger print information.
The hardware structural diagram of Figure 10 terminal device of embodiment to realize the present invention.As shown in Figure 10, which sets
Standby 1000 include but is not limited to: radio frequency unit 1001, audio output unit 1003, input unit 1004, passes network module 1002
Sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, processor 1010, with
And the equal components of power supply 1011.It will be understood by those skilled in the art that terminal device structure shown in Figure 10 was not constituted to end
The restriction of end equipment, terminal device may include perhaps combining certain components or difference than illustrating more or fewer components
Component layout.In embodiments of the present invention, terminal device includes but is not limited to mobile phone, tablet computer, laptop, palm
Computer, car-mounted terminal, wearable device and pedometer etc..
Wherein, processor 1010, for executing following methods:
In response to the touch control operation of the display screen to terminal device, the fingerprint image of touch control operation is obtained by photosensitive sensor
Case；
When the clarity of fingerprint pattern is unsatisfactory for preset condition, liquid crystal layer is adjusted so that fingerprint pattern is in photosensitive sensor
Middle focusing imaging, liquid crystal layer are set between display screen and photosensitive sensor.
Since this method is by the fingerprint pattern of photosensitive sensor acquisition touch control operation, then in the clarity of fingerprint pattern
In the case where being unsatisfactory for preset condition, the liquid crystal layer being arranged between display screen and photosensitive sensor is adjusted, so that fingerprint pattern
It focuses and is imaged in photosensitive sensor.In this way, if being bonded gap due to finger or leading to focal length when using pad pasting
It changes and can not focus after (focusing failure), the adjusting to the field distribution of liquid crystal in liquid crystal layer can be passed through and realize fingerprint letter
The imaging of breath.So as to solve fingerprinting scheme focal length in the prior art be easy to happen variation and cannot focus causes into
As fuzzy problem, to improve the discrimination of finger print information.
It should be understood that the embodiment of the present invention in, radio frequency unit 1001 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 1010 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 1001 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1001 can also by wireless communication system and network and other
Equipment communication.
Terminal device provides wireless broadband internet by network module 1002 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 1003 can be received by radio frequency unit 1001 or network module 1002 or in memory
The audio data stored in 1009 is converted into audio signal and exports to be sound.Moreover, audio output unit 1003 can be with
Audio output relevant to the specific function that terminal device 1000 executes is provided (for example, call signal receives sound, message sink
Sound etc.).Audio output unit 1003 includes loudspeaker, buzzer and receiver etc..
Input unit 1004 is for receiving audio or video signal.Input unit 1004 may include graphics processor
(Graphics Processing Unit, GPU) 10041 and microphone 10042, graphics processor 10041 are captured in video
In mode or image capture mode by image capture apparatus (such as camera) obtain static images or video image data into
Row processing.Treated, and picture frame may be displayed on display unit 1006.Through treated the picture frame of graphics processor 10041
It can store in memory 1009 (or other storage mediums) or carried out via radio frequency unit 1001 or network module 1002
It sends.Microphone 10042 can receive sound, and can be audio data by such acoustic processing.Audio that treated
Data can be converted to the lattice that mobile communication base station can be sent to via radio frequency unit 1001 in the case where telephone calling model
Formula output.
Terminal device 1000 further includes at least one sensor 1005, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring
The light and shade of border light adjusts the brightness of display panel 10061, proximity sensor can when terminal device 1000 is moved in one's ear,
Close display panel 10061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify terminal device appearance when static
State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 1005 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared sensor etc. are pressed, wherein infrared sensor can be by emitting and receiving infrared flash ranging
The distance between object and terminal device are measured, details are not described herein.
Display unit 1006 is for showing information input by user or being supplied to the information of user.Display unit 1006 can
Including display panel 10061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used
Forms such as (Organic Light-Emitting Diode, OLED) are managed to configure display panel 10061.
User input unit 1007 can be used for receiving the number or character information of input, and generate the use with terminal device
Family setting and the related key signals input of function control.Specifically, user input unit 1007 include touch panel 10071 with
And other input equipments 10072.Touch panel 10071, also referred to as touch screen collect the touch behaviour of user on it or nearby
Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 10071 or in touch panel
Operation near 10071).Touch panel 10071 may include both touch detecting apparatus and touch controller.Wherein, it touches
The touch orientation of detection device detection user is touched, and detects touch operation bring signal, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1010,
It receives the order that processor 1010 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The multiple types such as sound wave realize touch panel 10071.In addition to touch panel 10071, user input unit 1007 can also include
Other input equipments 10072.Specifically, other input equipments 10072 can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 10071 can be covered on display panel 10061, when touch panel 10071 detects
After touch operation on or near it, processor 1010 is sent to determine the type of touch event, is followed by subsequent processing device 1010
Corresponding visual output is provided on display panel 10061 according to the type of touch event.Although in Figure 10, touch panel
10071 and display panel 10061 are the functions that outputs and inputs of realizing terminal device as two independent components, but
In some embodiments, touch panel 10071 can be integrated with display panel 10061 and realize outputting and inputting for terminal device
Function, specifically herein without limitation.
Interface unit 1008 is the interface that external device (ED) is connect with terminal device 1000.For example, external device (ED) may include
Wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage card
Port, port, the port audio input/output (I/O), video i/o port, earphone for connecting the device with identification module
Port etc..Interface unit 1008 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) simultaneously
And by one or more elements that the input received is transferred in terminal device 1000 or it can be used in terminal device
Data are transmitted between 1000 and external device (ED).
Memory 1009 can be used for storing software program and various data.Memory 1009 can mainly include storage program
Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone
Such as audio data, phone directory) etc..In addition, memory 1009 may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 1010 is the control centre of terminal device, utilizes each of various interfaces and the entire terminal device of connection
A part by running or execute the software program and/or module that are stored in memory 1009, and calls and is stored in storage
Data in device 1009 execute the various functions and processing data of terminal device, to carry out integral monitoring to terminal device.Place
Managing device 1010 may include one or more processing units；Preferably, processor 1010 can integrate application processor and modulation /demodulation
Processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor master
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1010.
Terminal device 1000 can also include the power supply 1011 (such as battery) powered to all parts, it is preferred that power supply
1011 can be logically contiguous by power-supply management system and processor 1010, to realize that management is filled by power-supply management system
The functions such as electricity, electric discharge and power managed.
In addition, terminal device 1000 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of terminal device, may include processor 1010, memory 1009,
It is stored in the computer program that can be run on memory 1009 and on the processor 1010, the computer program is by processor
1010 realize each process of above-mentioned embodiment of the method shown in FIG. 1 when executing, and can reach identical technical effect, to avoid
It repeats, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned method shown in FIG. 1 when being executed by processor, and can reach phase
Same technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as read-only storage
Device (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or light
Disk etc..
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
It will be understood by those skilled in the art that the embodiment of the present invention can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention
Form.It is deposited moreover, the present invention can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above description is only an embodiment of the present invention, is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made within the spirit and principles of the present invention are equal
Replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of terminal device, the photosensitive sensor including display screen and under the display screen, which is characterized in that further include
Liquid crystal layer between the display screen and the photosensitive sensor, and the controller of the control liquid crystal layer focusing.
2. terminal device according to claim 1, which is characterized in that the photosensitive sensor is fingerprint photosensitive sensor.
3. a kind of fingerprint imaging method for terminal device characterized by comprising
In response to the touch control operation of the display screen to terminal device, the fingerprint image of the touch control operation is obtained by photosensitive sensor
Case；
When the clarity of the fingerprint pattern is unsatisfactory for preset condition, liquid crystal layer is adjusted so that the fingerprint pattern is in the sense
It focuses and is imaged in optical sensor, the liquid crystal layer is set between the display screen and the photosensitive sensor.
4. fingerprint imaging method according to claim 3, which is characterized in that further include:
If the fingerprint pattern focusing failure, readjusts the field distribution of the liquid crystal, to change fingerprint focal length, and is based on
Fingerprint focal length after change makes the fingerprint pattern focus in the photosensitive sensor imaging.
5. fingerprint imaging method according to claim 4, which is characterized in that make the finger based on the fingerprint focal length after change
Line pattern is focused the operation of imaging in the photosensitive sensor, comprising:
If the fingerprint pattern is focused successfully in the photosensitive sensor based on the fingerprint focal length after change, then the finger is enabled
Line pattern is imaged in the photosensitive sensor, and forms target fingerprint image；
If the fingerprint pattern is focused failure in the photosensitive sensor based on the fingerprint focal length after change, then continue to adjust
The field distribution of liquid crystal in the liquid crystal layer, until the fingerprint pattern is focused successfully in the photosensitive sensor.
6. fingerprint imaging method according to claim 3, which is characterized in that the liquid crystal layer includes liquid crystal driver, institute
State the operation for adjusting liquid crystal layer imaging so that the fingerprint pattern is focused in the photosensitive sensor, comprising:
The voltage that the liquid crystal layer is adjusted by the liquid crystal driver makes the liquid crystal in the liquid crystal layer that different points be presented
Cloth, with change make under fingerprint focal length and fingerprint focal length after the change the fingerprint pattern focus in the photosensitive sensor at
Picture.
7. fingerprint imaging method according to claim 3, which is characterized in that further include:
Fingerprint pattern after identification is focused successfully is formed by target fingerprint image.
8. a kind of fingerprint imaging device for terminal device, comprising:
Photosensitive sensor obtains the fingerprint pattern of the touch control operation in response to the touch control operation of the display screen to terminal device；
Liquid crystal layer, between the display screen and the photosensitive sensor, the liquid crystal layer includes liquid crystal driver, the liquid
Brilliant driver is used for when the clarity of the fingerprint pattern is unsatisfactory for preset condition, adjusts liquid crystal layer so that the fingerprint pattern
It focuses and is imaged in photosensitive sensor.
9. fingerprint imaging device according to claim 8, which is characterized in that the liquid crystal driver is configured to:
If the finger print information focusing failure, readjusts the field distribution of the liquid crystal, to change fingerprint focal length, make described
Fingerprint pattern is focused in the photosensitive sensor imaging based on the fingerprint focal length after change.
10. fingerprint imaging device according to claim 9, which is characterized in that further include that fingerprint imaging unit is configured to:
If the fingerprint pattern is focused successfully in the photosensitive sensor based on the fingerprint focal length after change, then the finger is enabled
Line pattern is imaged in the photosensitive sensor, and forms target fingerprint image；
If the fingerprint pattern is focused failure in the photosensitive sensor based on the fingerprint focal length after change, then continue to drive
The liquid crystal driver adjusts the field distribution of liquid crystal in the liquid crystal layer, until the fingerprint pattern is in the photosensitive sensor
It is middle focus successfully until.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811004304.XA CN109145849A (en) | 2018-08-30 | 2018-08-30 | A kind of fingerprint imaging method and device for terminal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004304.XA CN109145849A (en) | 2018-08-30 | 2018-08-30 | A kind of fingerprint imaging method and device for terminal device |
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| CN201811004304.XA Pending CN109145849A (en) | 2018-08-30 | 2018-08-30 | A kind of fingerprint imaging method and device for terminal device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634024A (en) * | 2019-02-22 | 2019-04-16 | 武汉芯盈科技有限公司 | The lower fingerprint sensor structure of lens arrangement and screen of focus adjustable |
| CN110661974A (en) * | 2019-09-30 | 2020-01-07 | 联想(北京)有限公司 | Image acquisition method and device and electronic equipment |
| CN111159675A (en) * | 2019-11-15 | 2020-05-15 | 西安海的电子科技有限公司 | Unlocking method based on fingerprint sensor |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410940A (en) * | 2001-09-28 | 2003-04-16 | 日本电气株式会社 | Imaging device and electronic apparatus containing imaging device |
| US20040169938A1 (en) * | 1999-11-04 | 2004-09-02 | Yoshitaka Nakamura | Portable information terminal device |
| CN101755284A (en) * | 2007-07-30 | 2010-06-23 | 索尼公司 | Imaging device |
| CN102141714A (en) * | 2011-03-31 | 2011-08-03 | 昆山龙腾光电有限公司 | Display device |
| CN103217849A (en) * | 2013-04-03 | 2013-07-24 | 东南大学 | Novel-structure adjustable-focus liquid crystal microlens array |
| CN104216151A (en) * | 2013-05-31 | 2014-12-17 | 国际商业机器公司 | Automatic focusing device and method of LCD |
| KR20150120043A (en) * | 2014-04-16 | 2015-10-27 | 크루셜텍 (주) | Mobile apparatus including both touch sensing function and authenticatiing fuction |
| CN106529438A (en) * | 2016-11-01 | 2017-03-22 | 信利光电股份有限公司 | Iris recognition camera module and terminal equipment |
| CN106845436A (en) * | 2017-02-10 | 2017-06-13 | 京东方科技集团股份有限公司 | Fingerprint identification module, fingerprint identification method and touch screen |
| CN106982326A (en) * | 2017-03-29 | 2017-07-25 | 华勤通讯技术有限公司 | Its focalization method and terminal |
| CN107292237A (en) * | 2017-05-22 | 2017-10-24 | 广东欧珀移动通信有限公司 | The acquisition method and Related product of fingerprint |
| CN108399352A (en) * | 2017-02-04 | 2018-08-14 | 上海箩箕技术有限公司 | Fingerprint imaging module and electronic equipment |
-
2018
- 2018-08-30 CN CN201811004304.XA patent/CN109145849A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040169938A1 (en) * | 1999-11-04 | 2004-09-02 | Yoshitaka Nakamura | Portable information terminal device |
| CN1410940A (en) * | 2001-09-28 | 2003-04-16 | 日本电气株式会社 | Imaging device and electronic apparatus containing imaging device |
| CN101755284A (en) * | 2007-07-30 | 2010-06-23 | 索尼公司 | Imaging device |
| CN102141714A (en) * | 2011-03-31 | 2011-08-03 | 昆山龙腾光电有限公司 | Display device |
| CN103217849A (en) * | 2013-04-03 | 2013-07-24 | 东南大学 | Novel-structure adjustable-focus liquid crystal microlens array |
| CN104216151A (en) * | 2013-05-31 | 2014-12-17 | 国际商业机器公司 | Automatic focusing device and method of LCD |
| KR20150120043A (en) * | 2014-04-16 | 2015-10-27 | 크루셜텍 (주) | Mobile apparatus including both touch sensing function and authenticatiing fuction |
| CN106529438A (en) * | 2016-11-01 | 2017-03-22 | 信利光电股份有限公司 | Iris recognition camera module and terminal equipment |
| CN108399352A (en) * | 2017-02-04 | 2018-08-14 | 上海箩箕技术有限公司 | Fingerprint imaging module and electronic equipment |
| CN106845436A (en) * | 2017-02-10 | 2017-06-13 | 京东方科技集团股份有限公司 | Fingerprint identification module, fingerprint identification method and touch screen |
| CN106982326A (en) * | 2017-03-29 | 2017-07-25 | 华勤通讯技术有限公司 | Its focalization method and terminal |
| CN107292237A (en) * | 2017-05-22 | 2017-10-24 | 广东欧珀移动通信有限公司 | The acquisition method and Related product of fingerprint |
Non-Patent Citations (2)
| Title |
|---|
| M. FONS ET AL: "Hardware-software co-design of an automatic fingerprint acquisition system", 《PROCEEDINGS OF THE IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS,2005.ISIE 2005》 * |
| 王红霞等: "双路输入实时指纹识别系统", 《光电子激光》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634024A (en) * | 2019-02-22 | 2019-04-16 | 武汉芯盈科技有限公司 | The lower fingerprint sensor structure of lens arrangement and screen of focus adjustable |
| CN110661974A (en) * | 2019-09-30 | 2020-01-07 | 联想(北京)有限公司 | Image acquisition method and device and electronic equipment |
| CN110661974B (en) * | 2019-09-30 | 2020-12-18 | 联想(北京)有限公司 | Image acquisition method and device and electronic equipment |
| CN111159675A (en) * | 2019-11-15 | 2020-05-15 | 西安海的电子科技有限公司 | Unlocking method based on fingerprint sensor |
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Application publication date: 20190104 |