CN108615032A - A kind of module, terminal device and fingerprint identification method for supporting full frame fingerprint recognition - Google Patents
A kind of module, terminal device and fingerprint identification method for supporting full frame fingerprint recognition Download PDFInfo
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- CN108615032A CN108615032A CN201810664376.0A CN201810664376A CN108615032A CN 108615032 A CN108615032 A CN 108615032A CN 201810664376 A CN201810664376 A CN 201810664376A CN 108615032 A CN108615032 A CN 108615032A
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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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Abstract
The application is suitable for fingerprint identification technology field, provides a kind of module, terminal device and fingerprint identification method for supporting full frame fingerprint recognition, the module includes：Substrate, be on the substrate array distribution fingerprint identification unit, the fingerprint identification unit includes：Photodiode, film transistor, the anode connection operating voltage line of the photodiode, the operating voltage line are used to provide the bias voltage of the photodiode work, and the cathode of the photodiode is connect with the drain electrode of the thin film transistor (TFT)；The grid of the thin film transistor (TFT) connects scan line, the scan line is used to control the on off state of the thin film transistor (TFT), the source electrode of the thin film transistor (TFT) connects data line, the data line is used to export the electric signal that the photodiode is generated when receiving the light of finger reflection, a kind of structure can be provided by the application by fingerprint identification function setting on a display screen, to realize full frame fingerprint identification function.
Description
Technical field
The application belongs to fingerprint identification technology field more particularly to a kind of the module of full frame fingerprint recognition, terminal is supported to set
Standby and fingerprint identification method.
Background technology
Fingerprint recognition is to carry out the technology of identity discriminating by comparing the details of different fingerprints.Everyone finger
Line is all different, and there is also significant differences for ten fingers of same people, therefore fingerprint can be used for identity authentication.
Currently, more and more cell phone manufacturers start to consider fingerprint identification module being arranged on the front panel of mobile phone, so
And light sensation fingerprint identification module needs point light source, sensor.If being arranged light sensation identification module on front panel, this is just
It can influence the setting of display module.There is presently no a kind of knots that can be merged fingerprint identification module and display module
Structure.
Invention content
In view of this, the embodiment of the present application provides a kind of module, terminal device and fingerprint for supporting full frame fingerprint recognition
Fingerprint identification module and display module are merged by recognition methods with providing a kind of structure.
The first aspect of the embodiment of the present application provides a kind of module for supporting full frame fingerprint recognition, including：
Substrate, on the substrate be in array distribution fingerprint identification unit；
The fingerprint identification unit includes：Photodiode, thin film transistor (TFT) corresponding with the photodiode；
The anode connection operating voltage line of the photodiode, the operating voltage line is for providing photosensitive two pole
The bias voltage of pipe work；
The cathode of the photodiode is connect with the drain electrode of the thin film transistor (TFT)；The grid of the thin film transistor (TFT) connects
Scan line is connect, the scan line is used to control the on off state of the thin film transistor (TFT)；
The source electrode of the thin film transistor (TFT) connects data line, and the data line is being received for exporting the photodiode
The electric signal generated when the light of digital reflex in one's hands.
The second aspect of the embodiment of the present application provides a kind of terminal device, including：
A kind of module for supporting full frame fingerprint recognition that the first aspect of the embodiment of the present application provides.
The third aspect of the embodiment of the present application provides a kind of fingerprint identification method, is applied to the embodiment of the present application second party
The terminal device that face provides, the fingerprint identification method include：
After receiving the instruction of fingerprint recognition, the contact information on the display screen of the terminal device is monitored；
After there is contact information on the display screen for monitoring the terminal device, the position based on the contact information
It sets, determines fingerprint identification region；
The fingerprint identification unit of the fingerprint identification region is opened, and by fingerprint identification region described in the display screen
The fingerprint identification unit in region in addition is closed；
The finger print information of user is acquired by the fingerprint identification unit of the fingerprint identification region.
The fourth aspect of the embodiment of the present application provides a kind of terminal device, including memory, processor and is stored in
In the memory and the computer program that can run on the processor, when the processor executes the computer program
The step of realizing the method that the embodiment of the present application third aspect provides.
5th aspect of the embodiment of the present application provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, the computer program to realize the embodiment of the present application when being executed by one or more processors
The step of the method that three aspects provide.
6th aspect of the embodiment of the present application provides a kind of computer program product, and the computer program product includes
Computer program, the computer program realize that the embodiment of the present application third aspect provides when being executed by one or more processors
The method the step of.
The embodiment of the present application provides a kind of module, and the module includes：Substrate is in array distribution on the substrate
Fingerprint identification unit；The fingerprint identification unit includes：Photodiode, film crystal corresponding with the photodiode
Pipe；The anode connection operating voltage line of the photodiode, the operating voltage line is for providing the photodiode work
The bias voltage of work；The cathode of the photodiode is connect with the drain electrode of the thin film transistor (TFT)；The thin film transistor (TFT)
Grid connects scan line, and the scan line is used to control the on off state of the thin film transistor (TFT)；The source of the thin film transistor (TFT)
Pole connects data line, and the data line is used to export the electricity that the photodiode is generated when receiving the light of finger reflection
Signal.Since fingerprint identification unit is disposed on the substrate by the embodiment of the present application, the substrate can be applied in display module,
To which fingerprint identification unit and display module are merged.
Description of the drawings
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of module for supporting full frame fingerprint recognition provided by the embodiments of the present application；
Fig. 2 is the circuit diagram where photodiode in a kind of fingerprint identification unit provided by the embodiments of the present application；
Fig. 3 is a kind of application scenarios of fingerprint recognition provided by the embodiments of the present application；
Fig. 4 provides a kind of wire laying mode of module that supporting full frame fingerprint recognition for the embodiment of the present application；
Fig. 5 is the structural schematic diagram of the module of another full frame fingerprint recognition of support provided by the embodiments of the present application；
Fig. 6 is a kind of implementation process schematic diagram of fingerprint identification method provided by the embodiments of the present application；
Fig. 7 is a kind of schematic block diagram of terminal device provided by the embodiments of the present application；
Fig. 8 is the schematic block diagram of another terminal device provided by the embodiments of the present application；
In figure：101, substrate；102, RGBW units；1021, the RGBW units of fingerprint identification unit are set；1022, it does not set
Set the RGBW units of fingerprint identification unit；103, fingerprint identification unit；104, white pixel subelement；106, thin film transistor (TFT)；
107, photodiode.
Specific implementation mode
In being described below, for illustration and not for limitation, it is proposed that such as tool of particular system structure, technology etc
Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific
The application can also be realized in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.
It should be appreciated that ought use in this specification and in the appended claims, the instruction of term " comprising " is described special
Sign, entirety, step, operation, the presence of element and/or component, but be not precluded one or more of the other feature, entirety, step,
Operation, element, component and/or its presence or addition gathered.
It is also understood that the term used in this present specification is merely for the sake of the mesh for describing specific embodiment
And be not intended to limit the application.As present specification and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combinations and all possible combinations of one or more of associated item listed, and includes these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Before introducing specific embodiment, RGBW technologies and liquid crystal display (Liquid Crystal are introduced first
Display, LCD).
The RGBW technologies are exactly to increase W white pixels on original RGB three primary colors, become four colour pattern pixels and set
Meter.
The construction of liquid crystal display is that liquid crystal cell is placed in the parallel glass substrate of two panels, is arranged on lower baseplate glass
Thin film transistor (TFT) (Thin Film Transistor, TFT) is arranged colored filter on upper substrate glass, passes through the letter on TFT
Number change with voltage and to control the rotation direction of liquid crystal molecule, to reach whether reach control each pixel polarised light outgoing
To display purpose.
In order to illustrate technical solution described herein, illustrated below by specific embodiment.It needs to illustrate
It is that in the embodiment of the present application, " RGBW units 1021 " is used to indicate the RGBW units of setting fingerprint identification unit；" RGBW units
1022 " the RGBW units for indicating that fingerprint identification unit is not arranged.
Refering to fig. 1 and Fig. 2, Fig. 1 be a kind of module for supporting full frame fingerprint recognition provided by the embodiments of the present application structure
Schematic diagram, Fig. 2 are the circuit diagrams in fingerprint identification unit where photodiode in the embodiment of the present application.
As shown, the module includes：
Substrate 101, on the substrate 101 be in array distribution fingerprint identification unit 103；
The fingerprint identification unit 103 includes：Photodiode 107, film corresponding with the photodiode 107 are brilliant
Body pipe 106；
The anode connection operating voltage line of the photodiode 107, the operating voltage line are described photosensitive for providing
The bias voltage that diode 107 works；
The cathode of the photodiode 107 is connect with the drain electrode of the thin film transistor (TFT) 106；The thin film transistor (TFT)
106 grid connects scan line, and the scan line is used to control the on off state of the thin film transistor (TFT) 106；
The source electrode of the thin film transistor (TFT) 106 connects data line, and the data line is for exporting the photodiode 107
The electric signal generated when receiving the light of finger reflection.
In the embodiment of the present application, as shown in Figure 1, the expression of the substrate 101 is provided under thin film transistor (TFT) 106
Substrate；I.e. there is also the RGBW units 102 in array distribution on the substrate 101；Red pixel in the RGBW units 102
In subelement, green pixel subelement, blue pixel subelement, white pixel subelement 104 and the fingerprint identification unit 103
Photodiode 107 it is transversely arranged.
The red pixel subelement in the RGBW units 102 in the embodiment of the present application, green pixel subelement, blue
Pixel subelement, white pixel subelement 104 not indicate to be red area on optical filter, green area, blue region
Domain, white area；But the throwing on lower substrate with red area, green area, blue region, white area on optical filter
The corresponding region in shadow position, there are glass electrode in the region, red pixel subelement, green in the RGBW units 102
What pixel subelement, blue pixel subelement, white pixel subelement 104 indicated respectively is the red area correspondence in optical filter
Glass electrode, the corresponding glass electrode of green area, the corresponding glass electrode of blue region, the corresponding vitreous electricity of white area
Pole.
Region shared by the RGBW units 102 is divided into 4 regions；4 regions can it is equal can not also be equal, it is described
Red pixel subelement, green pixel subelement, blue pixel subelement, white pixel subelement 104 are respectively in a region
In.
In order to which the fingerprint identification unit 103 to be embedded in the substrate 101, fingerprint identification unit 103 can be embedded in
Into the region where the white pixel subelement 104, shadow is caused in order not to the display effect to the RGBW units 102
It rings, it can be not changing the RGBW units 102 in the case of the distribution on the substrate 101, by white pixel
The area of unit 104 reduces, i.e., reduces the area of glass electrode in white pixel subelement 104, by fingerprint identification unit 103
It is embedded into the region at 104 place of the white pixel subelement, and the fingerprint identification unit 103 and white pixel
Unit 104 is transversely arranged, and the fingerprint identification unit 103 can be in the lateral left of the white pixel subelement 104, also may be used
With in the lateral right of the white pixel subelement 104.
As shown in Fig. 2, by the connection type of circuit in the figure, the process of the fingerprint recognition is：Operating voltage line is protected
Access operating voltage, scan line and data line input signal are held, there are very small reverse leakage currents for photodiode, at this point,
The electric signal of the source electrode of thin film transistor (TFT) is related with the very small reverse leakage current, when photodiode is received by finger
When the light of the varying strength of reflection, reverse current corresponding with the light for the varying strength that finger reflects just is will produce, at this moment,
Also the size of the electric signal of the source electrode of the thin film transistor (TFT) of circuit is just influenced whether；It is multiple by being distributed in the RGBW modules
The change of the source electrode electric signal of the corresponding thin film transistor (TFT) of fingerprint identification unit or size can generate finger print information.
Control photodiode, which can not receive the condition of light, to be：Using other layers in RGBW modules, for example,
The liquid crystal molecule in display screen is set to non-toggle state by switch unit, at this moment, is incident on by upper layer polarizer
Internal light not will produce polarization phenomena, to also can not just pass through lower layer's polarizer, also can not just be connect by photodiode
Receive light.
Control photodiode can receive light and carry out the condition of fingerprint recognition：Using in RGBW modules
Other layers, for example, by red pixel subelement, green pixel subelement, the corresponding liquid of blue pixel subelement in display screen
Brilliant molecule is set as non-toggle state by switch unit, and at this moment entering the light being shot out by lower layer's polarizer will not produce
Raw polarization phenomena, to which light also can not just pass through upper layer polarizer, would not also generate red, green, blue ray.But
It is the corresponding liquid crystal molecule of white pixel subelement in display screen to be set to rollover states by switch unit, at this moment
Enter the light being shot out by lower layer's polarizer and just will produce polarization phenomena, to, light can pass through upper layer polarizer,
White light will be sent out.White light can serve as point light source, similarly.The corresponding region of white pixel subelement can
Launch light, equally can also receive light, photodiode can be produced according to the strong and weak of the light that finger reflects
Raw electric signal of different sizes, to generate finger print information.
It should be noted that Fig. 2 is only the connection side of photodiode and thin film transistor (TFT) in a kind of fingerprint identification unit
The embodiment of formula, in practical applications, can also by photodiode and the concatenated mode of resistance by photodiode according to hand
The strong and weak curent change generated of the light of digital reflex is gone out by data line transfer.For example, photodiode anode or
Cathode one resistance of series connection；After the light irradiation of photodiode shin bone varying strength, different size of reversed electricity just will produce
Stream, equally, resistance can divide a part of voltage according to different size of reverse current；At this moment, it may result in thin film transistor (TFT)
Corresponding variation occurs for the electric signal of source electrode；It is, of course, also possible to by photodiode and the mode of capacitance parallel connection by photosensitive two pole
The strong and weak curent change generated for the light that pipe is reflected according to finger is gone out by data line transfer, and differ a citing herein.
It is a kind of application scenarios of fingerprint recognition provided by the embodiments of the present application referring to Fig. 3, filter layer is provided with array
Red area, green area, blue region, the white area of distribution, for convenience, the embodiment of the present application can will filter
The white area of piece is named as white filter.It is white area that white pixel subelement, which corresponds to the corresponding region of filter layer,
(can be understood as colourless, transparent region, have high light transmittance), when carrying out fingerprint recognition, the light that backlight is sent out passes through institute
It states white filter and is irradiated to pressing on the finger on the glass cover-plate of display screen；Light is reflected by finger in display screen
Portion, the light that the photodiode inside display screen can receive reflection can cause different location due to different finger textures
The light intensity that receives of photodiode it is different, photodiode is strong with the light according to the generation of the light of different power
Weak relevant electric signal；The electric signal for the multiple photodiodes feedback that can be embedded according to display screen generates fingerprint letter
Breath.
Fingerprint identification unit provided by the embodiments of the present application is using white in RGBW modules it is not necessary that point light source is separately provided
Color pixel subelement, which corresponds to corresponding high transmission region in filter layer and can launch backlight, to be irradiated on finger
Principle saves point light source.
Further, the red pixel subelement in the RGBW units, green pixel subelement, blue pixel are single
Photodiode in member, white pixel subelement and the fingerprint identification unit is transversely arranged.As shown in Figure 1, the red
Pixel subelement, green pixel subelement, blue pixel subelement, white pixel subelement 104 and the fingerprint identification unit
Photodiode 107 in 103 is transversely arranged, and the area of 104 corresponding glass electrode of white pixel subelement is less than other
The area of the corresponding glass electrode of three pixel subelements.
Further, it is a kind of module for supporting full frame fingerprint recognition provided by the embodiments of the present application referring to Fig. 4, Fig. 4
Wire laying mode, it is described often to arrange transversely arranged red pixel subelement, green pixel subelement, blue pixel subelement, white
Pixel subelement, photodiode share a scan line, often arrange transversely arranged red pixel subelement, green pixel-subcomponent list
Member, blue pixel subelement, the corresponding thin film transistor (TFT) of white pixel subelement grid access this row share sweep
Retouch line；
Each column photodiode shares a data line；
Each column photodiode shares an operating voltage line.
Can be seen that by embodiment shown in Fig. 4 does not influence the cloth of scan line and data line in existing RGBW modules
If only increasing signal data line of a data line as fingerprint recognition in the row for increasing fingerprint identification unit, increasing
Add an operating voltage line for ensureing that photodiode works normally.Also, since white pixel subelement cannot participate in reality
The color of the color on border, so after the area of the corresponding glass electrode of white pixel subelement is reduced, it will not be to existing
The color displays of RGBW modules impact.And the arrangement mode of pixel subelement in existing RGBW units will not be changed.
In practical application, the scan line, data line, operating voltage line can also be other wire laying modes, herein not
It is limited.Also, Fig. 4, only for the wire laying mode for display scan line, data line, operating voltage line, centre, which exists, to intersect
Place not indicate connect together, each row's scan line as an independent line not with other row scan line exist intersects
Connection, also not with data line, there are interconnections for operating voltage line；Similarly, per column data line as an independent line not with
Other row data lines there are interconnections, also not with scan line, there are interconnections for operating voltage line；Operating voltage line can be with
Individually draw, can also often arrange or each column is individually drawn, can also be all be both connected to together, but operating voltage line is not
There are interconnections with scan line and data line.
Can be seen that by the wire laying mode of the embodiment of the present application can also be by scan line, data line, operating voltage line
In conjunction with mode control the working condition of each photodiode, for example, can be normal to control any one photodiode
Work, as long as the horizontal scanning line, column data line, row operating voltage line where controlling the photodiode while unlatching.
Certainly, in practical application, can also control photodiode by the liquid crystal layer of the display screen where the RGBW modules can
It receives light or light can not be received and export finger print information to control the corresponding data line of photodiode, do not do herein
Limitation.
In conclusion when carrying out fingerprint recognition, the white pixel subelement for needing fingerprint identification unit adjacent is being shown
Projected position on screen can emergent ray, can also receive the light reflected by finger, meanwhile, photodiode can normal work
Make.
Further, Fig. 5 is referred to, Fig. 5 is another mould for supporting full frame fingerprint recognition provided by the embodiments of the present application
The structural solid figure of group.The quantity of RGBW units described in the module for supporting full frame fingerprint recognition is greater than or equal to the light
The quantity of quick diode.In the embodiment of the present application, the quantity of the fingerprint identification unit 103 can be less than the RGBW units
Quantity.If in substrate 101, the quantity of the fingerprint identification unit 103 can be less than the quantity of the RGBW units, that
The RGBW units 1021 having in substrate 101 have been correspondingly arranged fingerprint identification unit 103, some RGBW units 1022 it is just not right
Fingerprint identification unit 103 should be set.Certainly, in practical application, the quantity of the fingerprint identification unit 103 can also be equal to described
The quantity of RGBW units, such as a kind of RGBW modules for supporting full frame fingerprint recognition shown in FIG. 1.
Further, referring to Fig. 5, the RGBW units 1022 of fingerprint identification unit 103 are not provided with according to original arrangement side
Formula, and the area shared by the red pixel subelement, the area shared by the green pixel subelement, the blue pixel
The area equation shared by area, white pixel subelement 104 shared by unit.It has been correspondingly arranged fingerprint identification unit 103
In RGBW units 1021, the area shared by the white pixel subelement 104 is less than the face shared by the red pixel subelement
Product；The area shared by area, the green pixel subelement, blue pixel shared by the red pixel subelement is single
Area equation shared by member.
It should be noted that in Fig. 1 and Fig. 5, the white pixel subelement 104 in RGBW units is only identified, is not marked
Know red pixel subelement, green pixel subelement, blue pixel subelement, it is in practical applications, red pixel subelement, green
Color pixel subelement, blue pixel subelement position can be arranged according to actual conditions.Also, Fig. 1 and example shown in fig. 5
In be not offered as the RGBW units that the RGBW modules only include quantity shown in figure.
Further, Fig. 1 or Fig. 5 is referred to, the photodiode 107 is located at the white pixel subelement 104
Lateral right.
In Fig. 1 or shown in fig. 5 embodiments, the fingerprint identification unit 103 is arranged in the white pixel subelement 104
Lateral right, in practical application, the fingerprint identification unit 103 can also be arranged in the white pixel subelement 104
Longitudinally below, longitudinal top or lateral left etc..
Red pixel subelement, green pixel subelement in the RGBW units provided by the embodiments of the present application, blue
Pixel subelement, white pixel subelement are transversely arranged, and the white pixel subelement in arbitrary neighborhood two rows RGBW units is not
In same row, practical application, other arrangement modes can also be carried out according to actual conditions, are not limited herein.
The embodiment of the present application also provides a kind of display screens, including any support provided in the embodiment of the present application is full frame
The RGBW modules of fingerprint recognition, since the RGBW modules provided in the embodiment of the present application include mainly lower substrate layer, actual
In display screen, can also include：Upper substrate, polarizer, optical filter, layer of liquid crystal molecule, backlight etc..
The embodiment of the present application also provides a kind of terminal device, including any display screen provided by the embodiments of the present application,
In practical applications, the terminal device can be mobile phone, notebook, tablet computer etc..It is not limited herein.
Fig. 6 is a kind of implementation process schematic diagram of fingerprint identification method provided by the embodiments of the present application, and this method is applied to
Terminal device where each module for supporting full frame fingerprint recognition provided by the embodiments of the present application, this method as shown in the figure can be with
Include the following steps：
Step S601 monitors the contact letter on the display screen of the terminal device after receiving the instruction of fingerprint recognition
Breath.
In the embodiment of the present application, receiving the instruction of fingerprint recognition can be：Unlock instruction, for example, under black state,
The unlock instruction of the display screen of user's touch terminal equipment, it is also possible that user passes through on preset button or touch screen
The instruction for the fingerprint recognition that preset button is sent out.
After receiving the instruction of fingerprint recognition, so that it may the contact information on display screen to monitor the terminal device.
If what the instruction of described instruction identification indicated is the unlock instruction of the display screen of user's touch terminal equipment under black state,
It is considered that after receiving the instruction of fingerprint recognition or simultaneously, also monitor contact occur on the display screen of the terminal device
Information.
Since the fingerprint identification method provided in the embodiment of the present application is needed through built-in fingerprint identification unit, Yi Jixian
Show that the high light transmission of the white pixel subelement in module provides point light source, can realize the fingerprint recognition of the embodiment of the present application,
Therefore, after after the instruction for receiving fingerprint recognition, further include：
The display screen of the terminal device is switched to fingerprint recognition pattern, it is described aobvious under the fingerprint recognition pattern
The corresponding liquid crystal molecule of white pixel subelement in display screen in RGBW units is rollover states.
In the embodiment of the present application, the corresponding liquid crystal molecule of the white pixel subelement is that rollover states indicate white picture
The light that the corresponding lower polarizer of sub-prime unit is launched will produce polarization phenomena, to which light can pass through upper layer inclined
Tabula rasa, will also send out white light, and white light can serve as point light source.
Step S602 after there is contact information on the display screen for monitoring the terminal device, is based on the contact
The position of information, determines fingerprint identification region.
In the embodiment of the present application, in fact, can carry out fingerprint recognition on the entire display screen of the terminal device,
User can press finger in any position of display screen so that fingerprint be close to the glass cover-plate of display screen on one side.User presses
While pressing finger, contact information, the i.e. information of user's touching display screen also will produce on touch screen.Monitoring the terminal
After there is contact information on the display screen of equipment, fingerprint identification region can be determined based on the position of the contact information.
As the another embodiment of the application, the position based on the contact information determines that fingerprint identification region includes：
Based on the position of the contact information, using the minimum enclosed rectangle in the region of the contact information as fingerprint recognition
Region；
Or, the position based on the contact information, the minimum enclosed rectangle in the region of the contact information is amplified default
Fingerprint identification region is used as after multiple.
In the embodiment of the present application, the region that the finger of user is contacted with the glass cover-plate of display screen will generate fingerprint letter
Breath, and the glass cover-plate of the finger of user and display screen not in contact with region would not also generate finger print information, so, it is described touch
The region of point information is exactly the region of fingerprint recognition, however, due in the embodiment of the present application, the fingerprint recognition list of entire screen
The corresponding point light source region of member can emergent ray, meanwhile, fingerprint identification unit is often arranged in fingerprint identification unit and shares scan line,
Each column fingerprint identification unit shared data line, each column fingerprint identification unit shares operating voltage line, for the original electricity that will be obtained
The data volume of signal reduces, it is necessary to set the region for acquiring electric signal to rectangular area.And rectangular area needs include
Contact region, this just needs the minimum enclosed rectangle using the region of the contact information as fingerprint identification region.Certainly, practical
In, the minimum enclosed rectangle in the region of the contact information can also be amplified pre- based on the position of the contact information
If being used as fingerprint identification region after multiple.
The fingerprint identification unit of the fingerprint identification region is opened, and will referred to described in the display screen by step S603
The fingerprint identification unit in the region other than line identification region is closed.
The fingerprint identification unit by the fingerprint identification region is opened, and by fingerprint recognition described in the display screen
The fingerprint identification unit in the region other than region is closed：
Open operating voltage line, scan line and the data line of the fingerprint identification unit of the fingerprint identification region；
Close at least one of following of the region other than fingerprint identification region described in the display screen：Operating voltage line,
Scan line, data line.
In the embodiment of the present application, as shown in Fig. 2, the condition of photodiode normal work is：Photodiode
Scan line, data line, operating voltage line open, and the operating voltage line of each column photodiode is shared.Each column light
What the data line of quick diode shared, the scanning of each column photodiode is shared, so, which fingerprint identification region covers
A few row fingerprint identification units, then just opening the corresponding scan line of the fingerprint recognition list of which row；Fingerprint identification region covers
Which row fingerprint identification unit, then just opening the fingerprint recognition list corresponding data line of which row, operating voltage line.When
So, need will be in operating voltage line, scan line, data line for the fingerprint identification unit in the region other than the fingerprint identification region
It is one or more close, will not just export electric signal.In this way, generating finger print information in the electric signal transmitted by data line
When, so that it may to receive only the electric signal in fingerprint identification region.Just without generating fingerprint according to the electric signal on entire screen
Information, to improve the process for generating finger print information.
Also need to explanation is a bit, when carrying out fingerprint recognition, the red picture in the corresponding region of the fingerprint identification region
Sub-prime unit, green pixel subelement, the corresponding liquid crystal molecule of blue pixel subelement are set as non-toggle by switch unit
At this moment state enters the light being shot out by lower layer's polarizer and not will produce polarization phenomena, to also can not just pass through upper layer inclined
Tabula rasa would not also generate red, green, blue ray.
Step S604 acquires the finger print information of user by the fingerprint identification unit of the fingerprint identification region.
The embodiment of the present application sends out white light by the pixel unit in the entire display screen of control and is used as point light source；Same time control
Make the photodiode in the fingerprint identification region be in working condition and control other than the fingerprint identification region photosensitive two
Pole pipe is off working state；Finger print information is only generated according to the electric signal in fingerprint identification region to realize, due to initial data
Amount reduces, and data volume is exactly to contain the region of finger print information, so the efficiency of fingerprint recognition can be improved.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present application constitutes any limit
It is fixed.
Fig. 7 is that the schematic block diagram for the terminal device that one embodiment of the application provides only is shown and this Shen for convenience of description
It please the relevant part of embodiment.
The terminal device 7 can be the software unit being built in the terminal devices such as mobile phone, tablet computer, notebook, hard
Part unit or the unit of soft or hard combination can also be used as independent pendant and be integrated into the mobile phone, tablet computer, notebook etc.
In terminal device.
The terminal device 7 includes：
Monitoring modular 71, on the display screen for after receiving the instruction of fingerprint recognition, monitoring the terminal device
Contact information；
Fingerprint identification region determining module 72, for there is contact information on the display screen for monitoring the terminal device
Later, the position based on the contact information, determines fingerprint identification region；
Fingerprint identification function opening module 73, for the fingerprint identification unit of the fingerprint identification region to be opened, and will
The fingerprint identification unit in the region other than fingerprint identification region described in the display screen is closed；
Acquisition module 74, the finger print information for acquiring user by the fingerprint identification unit of the fingerprint identification region.
Optionally, the fingerprint identification region determining module 72 is additionally operable to：
Based on the position of the contact information, using the minimum enclosed rectangle in the region of the contact information as fingerprint recognition
Region；
Or, the position based on the contact information, the minimum enclosed rectangle in the region of the contact information is amplified default
Fingerprint identification region is used as after multiple.
Optionally, the fingerprint identification function opening module 73 is additionally operable to：
Open operating voltage line, scan line and the data line of the fingerprint identification unit of the fingerprint identification region；
Close at least one of following of the region other than fingerprint identification region described in the display screen：Operating voltage line,
Scan line, data line.
Optionally, the monitoring modular 71 is additionally operable to：
After receiving the instruction of fingerprint recognition, the display screen of the terminal device is switched to fingerprint recognition pattern,
Under the fingerprint recognition pattern, the corresponding liquid crystal molecule of white pixel subelement in the display screen in RGBW units is overturning
State.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each work(
Can unit, module division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of the terminal device are divided into different functional units or module, to complete
All or part of function described above.Each functional unit, module in embodiment can be integrated in a processing unit,
Can also be that each unit physically exists alone, can also be during two or more units be integrated in one unit, above-mentioned collection
At unit both may be used hardware form realize, can also be realized in the form of SFU software functional unit.In addition, each function
Unit, module specific name also only to facilitate mutually distinguish, the protection domain being not intended to limit this application.Above-mentioned dress
Set middle unit, module specific work process, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
Fig. 8 is the schematic block diagram for the terminal device that the another embodiment of the application provides.As shown in figure 8, the end of the embodiment
End equipment 8 includes：It one or more processors 80, memory 81 and is stored in the memory 81 and can be in the processing
The computer program 82 run on device 80.The processor 80 realizes that above-mentioned each fingerprint is known when executing the computer program 82
Step in other embodiment of the method, such as step S601 to S604 shown in fig. 6.Alternatively, the processor 80 executes the meter
The function of each module/unit in above-mentioned terminal device embodiment, such as module 71 to 74 shown in Fig. 7 are realized when calculation machine program 82
Function.
Illustratively, the computer program 82 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 81, and are executed by the processor 80, to complete the application.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 82 in the terminal device 8 is described.For example, the computer program 82 can be divided
It is cut into monitoring modular, fingerprint identification region determining module, fingerprint identification function opening module, acquisition module.
The monitoring modular, on the display screen for after receiving the instruction of fingerprint recognition, monitoring the terminal device
Contact information；
The fingerprint identification region determining module, for occurring contact letter on the display screen for monitoring the terminal device
After breath, based on the position of the contact information, fingerprint identification region is determined；
The fingerprint identification function opening module, for the fingerprint identification unit of the fingerprint identification region to be opened, and
The fingerprint identification unit in the region other than fingerprint identification region described in the display screen is closed；
The acquisition module, the fingerprint for acquiring user by the fingerprint identification unit of the fingerprint identification region are believed
Breath.
Other modules or unit can refer to the description in embodiment shown in Fig. 7, and details are not described herein.
The terminal device includes but are not limited to processor 80, memory 81.It will be understood by those skilled in the art that figure
8 be only an example of terminal device 8, does not constitute the restriction to terminal device 8, may include more more or less than illustrating
Component, either combine certain components or different components, for example, the terminal device can also include input equipment, it is defeated
Go out equipment, network access equipment, bus etc..
The processor 80 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng.
The memory 81 can be the internal storage unit of the terminal device 8, such as the hard disk of terminal device 8 or interior
It deposits.The memory 81 can also be to be equipped on the External memory equipment of the terminal device 8, such as the terminal device 8
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 81 can also both include the storage inside list of the terminal device 8
Member also includes External memory equipment.The memory 81 is for storing needed for the computer program and the terminal device
Other programs and data.The memory 81 can be also used for temporarily storing the data that has exported or will export.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In embodiment provided herein, it should be understood that disclosed terminal device and method can pass through it
Its mode is realized.For example, terminal device embodiment described above is only schematical, for example, the module or list
Member division, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or
Component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point is shown
The mutual coupling or direct-coupling or communication connection shown or discussed can be by some interfaces, between device or unit
Coupling or communication connection are connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can be stored in a computer read/write memory medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of flow in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
May include：Any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic of the computer program code can be carried
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to legislation in jurisdiction and the requirement of patent practice
Subtract, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and
Telecommunication signal.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although with reference to aforementioned reality
Example is applied the application is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment is modified or equivalent replacement of some of the technical features；And these are changed
Or replace, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Within the protection domain of the application.
Claims (10)
1. a kind of module for supporting full frame fingerprint recognition, which is characterized in that including：
Substrate, on the substrate be in array distribution fingerprint identification unit；
The fingerprint identification unit includes：Photodiode, thin film transistor (TFT) corresponding with the photodiode；
The anode connection operating voltage line of the photodiode, the operating voltage line is for providing the photodiode work
The bias voltage of work；
The cathode of the photodiode is connect with the drain electrode of the thin film transistor (TFT)；The grid connection of the thin film transistor (TFT) is swept
Line is retouched, the scan line is used to control the on off state of the thin film transistor (TFT)；
The source electrode of the thin film transistor (TFT) connects data line, and the data line is in one's hands in reception for exporting the photodiode
The electric signal generated when the light of digital reflex.
2. supporting the module of full frame fingerprint recognition as described in claim 1, which is characterized in that described to support full frame fingerprint recognition
Module further include：
In the RGBW units of array distribution on the substrate；
Red pixel subelement, green pixel subelement, blue pixel subelement, white pixel in the RGBW units is single
Photodiode in the first and described fingerprint identification unit is transversely arranged.
3. supporting the module of full frame fingerprint recognition as claimed in claim 2, which is characterized in that it is described often arrange it is transversely arranged red
Color pixel subelement, green pixel subelement, blue pixel subelement, white pixel subelement, photodiode share one
Scan line often arranges transversely arranged red pixel subelement, green pixel subelement, blue pixel subelement, white pixel
The grid of the corresponding thin film transistor (TFT) of unit accesses the shared scan line of this row；
Each column photodiode shares a data line；
Each column photodiode shares an operating voltage line.
4. supporting the module of full frame fingerprint recognition as claimed in claim 2, which is characterized in that described to support full frame fingerprint recognition
Module described in RGBW units quantity be greater than or equal to the photodiode quantity.
5. a kind of terminal device, which is characterized in that including：
As Claims 1-4 any one of them supports the module of full frame fingerprint recognition.
6. a kind of fingerprint identification method, which is characterized in that be applied to terminal device as claimed in claim 5, the fingerprint is known
Other method includes：
After receiving the instruction of fingerprint recognition, the contact information on the display screen of the terminal device is monitored；
After there is contact information on the display screen for monitoring the terminal device, based on the position of the contact information, really
Determine fingerprint identification region；
The fingerprint identification unit of the fingerprint identification region is opened, and will be other than fingerprint identification region described in the display screen
Region fingerprint identification unit close；
The finger print information of user is acquired by the fingerprint identification unit of the fingerprint identification region.
7. fingerprint identification method as claimed in claim 6, which is characterized in that the position based on the contact information determines
Fingerprint identification region includes：
Based on the position of the contact information, using the minimum enclosed rectangle in the region of the contact information as fingerprint identification area
Domain；
Or, the position based on the contact information, amplifies preset multiple by the minimum enclosed rectangle in the region of the contact information
It is used as fingerprint identification region afterwards.
8. fingerprint identification method as claimed in claim 6, which is characterized in that the fingerprint by the fingerprint identification region is known
Other unit is opened, and includes by the closing of the fingerprint identification unit in the region other than fingerprint identification region described in the display screen：
Open operating voltage line, scan line and the data line of the fingerprint identification unit of the fingerprint identification region；
Close at least one of following of the region other than fingerprint identification region described in the display screen：Operating voltage line, scanning
Line, data line.
9. fingerprint identification method as claimed in claim 6, which is characterized in that after receiving the instruction of fingerprint recognition, also wrap
It includes：
The display screen of the terminal device is switched to fingerprint recognition pattern, under the fingerprint recognition pattern, the display screen
The corresponding liquid crystal molecule of white pixel subelement in middle RGBW units is rollover states.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence realizes the step such as any one of claim 6 to 9 the method when the computer program is executed by one or more processors
Suddenly.
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| CN201810664376.0A CN108615032B (en) | 2018-06-25 | 2018-06-25 | Module, terminal equipment and fingerprint identification method supporting full-screen fingerprint identification |
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| CN201810664376.0A CN108615032B (en) | 2018-06-25 | 2018-06-25 | Module, terminal equipment and fingerprint identification method supporting full-screen fingerprint identification |
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