CN109740514A - A kind of display screen optical finger print identification electronic device and method - Google Patents
A kind of display screen optical finger print identification electronic device and method Download PDFInfo
- Publication number
- CN109740514A CN109740514A CN201811637834.8A CN201811637834A CN109740514A CN 109740514 A CN109740514 A CN 109740514A CN 201811637834 A CN201811637834 A CN 201811637834A CN 109740514 A CN109740514 A CN 109740514A
- Authority
- CN
- China
- Prior art keywords
- display screen
- finger print
- fingerprint
- electronic device
- finger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of display screen optical finger prints to identify electronic device, including self light emitting display panel and the optical identification mould group being arranged in below the self light emitting display panel identification region, the optical identification mould group includes automatic focusing module, imaging sensor, when finger is placed on identification region, the illumination that the self light emitting display panel issues is mapped on finger and is reflected onto automatic focusing module to defocused, forms the fingerprint image of the finger on the image sensor.A kind of display screen optical finger print recognition methods, when needing to carry out fingerprint recognition, light the pixel of the self light emitting display panel identification region, when finger is located at identification region, the light that the identification region issues is irradiated to the valley line of finger and crestal line and is reflected, the automatic focusing module is refracted to through the gap between pixel again, and by the automatic focusing module to defocused, clearly fingerprint image is formed on the image sensor, described image sensor is acquired the fingerprint image, and collected fingerprint image is sent to processor.
Description
Technical field
The present invention relates to screen fingerprint recognition, shield lower fingerprint recognition, and in particular to a kind of display screen optical finger print identification electricity
Sub-device and method.
Background technique
The fingerprint recognition mould group of existing prevalence on the market, is largely active capacitive fingerprint sensing device mould group, principle
The tube core that the fingerprint sensor based on semiconductor technology includes silicon material, front be formed with sensor array of acquisition units,
Driving circuit, driving electrodes and reading circuit.It can go deep into skin inner layer acquisition image, the table of transmitting pumping signal to human finger
Cortex.Low energy radiofrequency signal with wavelength much larger than fingerprint spacing motivates epidermis, detects fingerprint using the pumping signal
The different weak capacitives formed between surface layer and sensor capacitance array, are reflected in the electromagnetic field for closing on skin surface
And detected by miniature array antenna, to realize the technology of fingerprint detection.The advantage of the technology is that fingerprint mould group can be done
Very frivolous small and exquisite and power consumption it is lower, but its sensitivity is very low, can only at most penetrate the glass medium of 300um, and on the market
General display thickness of displays is all in 700um or more, therefore capacitance type sensor is not used in below display screen.
In order to which capacitance type sensor to be used in below display screen, there is a kind of scheme of compromise, i.e., in the non-aobvious of display screen
Show and dig blind hole below the glass cover-plate in region, capacitive fingerprint sensing device is placed in blind hole, so that sensor can penetrate
The glass of 300um.But there are three apparent defects for this scheme: 1, program fingerprint sensor can not be placed on display area,
Overall aesthetic degree is influenced, as mobile phone can not do narrow frame design；2, the glass cover-plate thickness in blind hole region significantly reduces, be easy by
Damage；3, the technique of glass cover-plate digging blind hole is extremely complex, and yield is very low.
Another Technology Ways are using ultrasonic wave scheme, and program principle is the specific frequency issued using fingerprint mould group
Ultrasonic scanning finger, since the degree for being absorbed when ultrasonic wave reaches unlike material surface, penetrating and reflecting is different, thus
Skin and air be can use for the difference of sound impedance, the position where ridge and paddy to fingerprint identifies.The program
Advantage be able to carry out the subcutaneous fingerprint recognition of deep layer and can distinguish living body, thus the safety of scheme is higher, but need
Using the MEMS technology of piezoelectric ceramics, technology difficulty is very big, with high costs；Another defect is that penetration depth is limited, ultrasound
Fingerprint schemes are not able to achieve the lower identification of screen now.
With display screen naturally combined with should use optical fingerprint sensor, optical plan technology is long-standing, mainly
Based on light catadioptric principle: the illumination that luminescence unit is launched, which is mapped on finger, is mapped to receiving unit by the way that optical path is catadioptric again,
For the peaks and troughs of fingerprint because different to the energy intensity of transmitting light absorption, reflection, receiving unit passes through induction identification
Capacity volume variance, to generate the different light and shade striped of brightness, i.e. information in fingerprint.But traditional optical plan is needed using three
Angle Ling Jing, therefore optical path is very long, it is sufficiently bulky, it is difficult to have in the electronic equipment of rigors volume.
In order to greatly reduce the volume of traditional optical formula fingerprint sensor, OLED (organic luminous semiconductor) display screen is utilized
It realizes, OLED is actively to shine, and can accurately control each display pixel point, so the display screen of OLED material is very
Ideal transmitting radiant can also mitigate in addition, OLED display module is thinner and shield lower fingerprint sensor bring due to placing
The problem of electronic equipment integrally thickens.Using OLED display screen, there are two types of Technology Ways at present: 1, it is catadioptric to be still based on light
Principle is penetrated, in order to greatly shorten optical path, reduces volume and is stacked directly below using pinhole imaging system principle in OLED display screen
COMS (imaging sensor) light channel structure.Its technical principle is: OLED shines and is irradiated on finger, and light is through between pixel
Aperture below gap and display screen, also known as collimating aperture (Collimator Hole), the light that finger is reflected back is by COMS image
Sensor is collected, is handled to form fingerprint image.The program needs to customize special microlens array (MicroLens
Array), optical space filter array (Spatial Filter Array), microlens array needs (micro electronmechanical by MEMS
System) technical treatment or chemical treatment.The two arrays can guarantee that the light into sensor is substantially from fingerprint
Reflected light, rather than display screen or sunlight.
Although the program reduces the volume of optics module, but need to open many apertures in display screen, it is also necessary to customize micro-
Lens array and filter array need to use MEMS technology, and the technological difficulty is very high, yield is low, with high costs, therefore only
It can not be used on cheap electronic equipment on the electronic equipments such as high-end handsets.
Summary of the invention
Fingerprint volume is big under screen of the present invention in order to solve the prior art, technological difficulty it is high with, it is at high cost and know
Not slow-footed problem provides a kind of display screen optical finger print identification electronic device, using macro head principle, from self-luminous
The light that display screen issues is aggregated to imaging sensor by the convex lens with automatic focusing function after finger reflects
On effective cog region, and collect fingerprint image.
The present invention is achieved through the following technical solutions:
A kind of display screen optical finger print identification electronic device, including self light emitting display panel and setting are shown in the self-luminous
Shield the optical identification mould group below identification region, the optical identification mould group includes automatic focusing module, imaging sensor, works as hand
When finger is placed on identification region, the illumination that the self light emitting display panel issues is mapped on finger and is reflected onto automatic focusing module
To defocused, the fingerprint image of the finger is formed on the image sensor.
A kind of display screen optical finger print recognition methods when needing to carry out fingerprint recognition, is lighted the self light emitting display panel and is known
The pixel in other region, when finger is located at identification region, the light that the identification region issues be irradiated to finger valley line and
Crestal line is simultaneously reflected, then is refracted to the automatic focusing module through the gap between pixel, and by described automatic right
Burnt module forms clearly fingerprint image to defocused on the image sensor, and described image sensor carries out the fingerprint image
Acquisition, and collected fingerprint image is sent to processor.
The bulky problem of general optical fingerprint identification module is overcome through the invention, and passes through self light emitting display panel
Self-luminous principle solve the problems, such as that optical identification needs light source；It is shone and is irradiated on finger by self light emitting display panel, light
Line through the gap between pixel and the convex lens below display screen, collected by imaging sensor, locate by the light that finger is reflected back
Reason is to form fingerprint image.It is not necessarily to aperture on a display screen using the present invention, reduces the difficulty of manufacturing process, reduces into
This.
Further, the upper surface of the self light emitting display panel is covered with cover board, and the cover board is transparent material, the cover board
Upper surface be coated with anti-fingerprint vestiges coating, the anti-fingerprint vestiges coating be transparent material.
Further, the automatic focusing module includes shell, convex lens, drive module, and the drive module includes
Driving chip and driving device are covered with optical filter in the upper end of convex lens, and the convex lens is mounted in driving device, described
Driving chip is used to focus by the mobile convex lens of control driving device to realize, described image sensor, driving device are pacified
It fills in the housing, and imaging sensor is located at the underface of driving device.
Further, at least provided with 2 pieces, the convex lens is arranged in same level the convex lens.
Further, the convex lens is equipped with 3 pieces, and 3 pieces of convex lenses are placed side by side in same level.
Further, the convex lens is equipped with 4 pieces, and 4 pieces of convex lenses are put in same level with the column arrangement of two rows two
It sets.
Further, the shell, driving chip are arranged on one piece of Rigid Flex, are also set on the Rigid Flex
It is equipped with connector, the connector is used for transmission driving chip, the data in imaging sensor.
Further, the connector uses SPI interface.The SPI interface is minimum only to need 4 due to being serial line interface
Root line just can be carried out signal transmission, and strong antijamming capability, be restricted in terms of signal integrity small.
Further, the auto-focusing mode of the automatic focusing module is passive type.
Compared with prior art, the present invention having the following advantages and benefits:
A kind of entire optical texture of display screen optical finger print identification electronic device of the present invention is very simple, and volume is very
It is small, without carrying out aperture to self light emitting display panel, without preparation expensive microlens array and filter array.Optics module
It is cheap can be on the high-value products such as mobile phone, tablet computer, may be also used in door lock, attendance recorder, wearable set
On the standby product for waiting cost sensitivities.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is identification region position view of the present invention；
Fig. 2 is the structural schematic diagram of self light emitting display panel pixel and gap；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is automatic focusing module structural schematic diagram；
Fig. 5 is the embodiment of another signal transmission；
Fig. 6,7 for another embodiment schematic diagram；
Fig. 8 is the operating current of voice coil motor and the curve graph of convex lens moving distance.
Label and corresponding parts title in attached drawing:
30- self light emitting display panel, 31- identification region, 32- cover board, 33- anti-fingerprint vestiges coating, 35- pixel, 36- are empty
Gap, 100- shell, 101- convex lens, 102- bracket, 103- front pad, 104- spring leaf, 105- fixed frame, 106- permanent magnet,
107- coil, 108- carrier, 109- rear gasket, 110- pedestal, 111- imaging sensor, 112- optical filter, 113- driving chip,
114- connector, 115- Rigid Flex.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of display screen optical finger print identifies electronic device, including self light emitting display panel 30 and sets
The optical identification mould group below 30 identification region 31 of the self light emitting display panel is set, the optical identification mould group includes auto-focusing
Module, imaging sensor 111, when finger 20 is placed on identification region 31, the light that the self light emitting display panel 30 issues irradiates
On to the finger 20 and automatic focusing module is reflexed to defocused, is imaged on imaging sensor 111.
The self light emitting display panel 30 is used as light emitting source, and wavelength is 500~570nm, which can be
OLED (organic luminous semiconductor) display screen or Micro-LED (LED miniatureization and matrixing) display screen, optimization technique compare
Mature OLED display screen.
A kind of display screen optical finger print recognition methods when needing to carry out fingerprint recognition, lights the self light emitting display panel 30
The pixel 35 of identification region 31, when finger 20 is located at identification region 31, as shown in figure 3, what the identification region 31 issued
Light is irradiated to the valley line 20a and crestal line 20b of finger 20 and is reflected, then is refracted to through the gap 36 between pixel 35
The automatic focusing module, and formed on imaging sensor 111 and clearly referred to defocused by the automatic focusing module
Print image, described image sensor 111 are acquired the fingerprint image, and collected fingerprint image is sent to processing
Device.
The bulky problem of general optical fingerprint identification module is overcome through the invention, and passes through self light emitting display panel
30 self-luminous principle solves the problems, such as that optical identification needs light source；It is shone by self light emitting display panel 30 and is irradiated to finger
On, light is through the gap between pixel and the convex lens below display screen, and the light that finger is reflected back is by imaging sensor 111
It collects, handle to form fingerprint image.It is not necessarily to aperture on a display screen using the present invention, reduces the difficulty of manufacturing process, subtracts
Cost is lacked.
The upper surface of the self light emitting display panel 30 is covered with cover board 32, and the cover board 32 is transparent material, the cover board 32
Upper surface be coated with anti-fingerprint vestiges coating 33, the anti-fingerprint vestiges coating 33 be transparent material.The material of the cover board 32 can
To be glass or resin；If finger directly pressing will form finger vestiges on cover board 32, especially wet and slippery greasy finger vestiges
More serious, finger vestiges can bring security risk to optical fingerprint sensor.It is formed after effectively reducing finger pressing
Fingerprint trace, is covered with anti-fingerprint vestiges coating 33 on cover board 32, which preferably uses fluorine element object or polymeric fluorochemical material.
As shown in figure 4, the automatic focusing module includes shell 100, convex lens 101, drive module, the driving mould
Block includes driving chip 113 and driving device, is covered with optical filter 112 in the upper end of convex lens 101, and the convex lens 101 is pacified
In driving device, the driving chip 113 is used to realize focusing, institute by the mobile convex lens 101 of control driving device
State imaging sensor 111, driving device is respectively mounted in a housing 100, and imaging sensor 111 be located at driving device just under
Side.
The optical filter 112, to prevent the infrared light of external sunlight from interfering, works as user filtering out infrared light
When in open air, strong light guide is avoided to cause fingerprint that can not identify that 112 permission wavelength of the optical filter are between 380nm~760nm
Light can pass through filter plate 112 and be imaged onto imaging sensor 111.
The driving device successively includes: bracket 102, front pad 103, spring leaf 104, fixed frame 105, forever from top to bottom
Magnet 106, coil 107, carrier 108, rear gasket 109 and pedestal 110, the convex lens 101 are mounted on carrier 108,
In: the bracket 102 is used to insulate for fixing front pad 103 and spring leaf 104, the front pad 103 and rear gasket 109,
The spring leaf 104 is used for fixed permanent magnet 106 for carrying carrier 108 and trimming moment, fixed frame 105, and permanent magnet 106 is used
In generating permanent-magnetic field, which generates driving moment after being powered, pedestal 110 is for installing above-mentioned component, and and shell
100 fix above-mentioned component.
The shell 100, driving chip 113 are arranged on one piece of Rigid Flex 115, on the Rigid Flex 115
It is additionally provided with connector 114, the connector 114 is used for transmission driving chip 113, the data in imaging sensor 111.It is described
Rigid Flex 115 is pcb board, and the shell 100 is mounted on Rigid Flex 115 by fixation hole.
Traditional camera lens is mostly to design by cam ditch (CAM Slot) to adjust focal length, and Yao Shixian camera lens is along cam ditch
Move up and down and need to be driven with motor, but the volume of motor be it is very large, in mobile phone, intelligent wearable device etc. to knot
Structure has in the product of rigors, even if the volume of micromotor is also excessively huge, and manufactures on micro-lens convex
Ditch is taken turns, not only manufacture difficulty is high, and focal length precision is also difficult to control.To solve drawbacks described above, the present invention utilizes voice coil motor
(VCM) Lai Shixian automatic focusing function.VCM is as the working principle of loudspeaker, so be voice coil motor, have high frequency sound,
High-precision feature.It is all the principle for adding electric current or charge generation power in fixed magnetic field, thus generate the process of movement, i.e., it is left
Hand rule.The program does not use the motor of bulky, without cam ditch is prepared, entire optical identification mould group may make to make
Must be very accurate, small and exquisite, and power consumption is very low.In the present embodiment, as shown in figure 8, the operating current and convex lens of voice coil motor
The curve of 101 moving distances, the current margin of the voice coil motor are 24~74mA, can make the movement of convex lens 101
Focal distance is 0~0.22mm.
Embodiment 2
Described image sensor 111 uses black and white COMS imaging sensor, which only has gray scale not have color.It is colored
Cmos sensor has infrared filter (loss of about 60% light ray energy), in addition has three-color filter above each pixel
(R/G/B) (about 20% energy of loss), so light reaches pixel and generally there was only 32% or so.And black and white cmos image senses
Device can make to reach pixel close to 100% energy.So black and white cmos image sensor possesses higher sensitivity.This field institute
Well known, fingerprint recognition only needs to handle gray level image, so selection black and white cmos sensor can save three-color filter, saves
Cost-saving, moreover it is possible to greatly reduce light ray energy loss.It is 1/2.9 that the black and white cmos image sensor, which selects photosensitive element size,
Inch, 1,000,000 pixels, valid pixel array are the chip of 1280x728, and the preferred chip interior can carry out dark correction, the sun
Black mole eliminate etc. pretreatment, the chip under half-light environment also can shooting clear fingerprint image.
Embodiment 3
The auto-focusing mode of the automatic focusing module is preferably passive type, since active auto-focusing is in volume
It integrates infrared or ultrasonic transmitter-receiver in the mould group of rigors to be difficult to realize, and when physical efficiency shot absorbs light or wave
Focusing is difficult, also by glass-reflected therefore can penetrate glass focusing difficulty；So directly receiving and dividing using passive type auto-focusing
Analyse the mode that the image after finger catadioptric carries out auto-focusing.The advantages of this auto-focusing mode is；Itself should not
Emission system, thus it is few to consume energy, and is conducive to minimize.To the ideal auto-focusing of physical efficiency shot with certain brightness, inverse
It good can also focus under light, moreover it is possible to it focuses through glass, it thus can be using on a display screen.
Embodiment 4
As shown in figure 5, the connector 114 uses SPI interface.Driving chip 113 and the MCU described in this implementation column are logical
I2C interface connection is crossed, described image sensor 111 is connected with the MCU by DVP interface, the MCU and the connector
114 are connected by SPI interface, the connector 114 and external processor electrical connection.This implementation column is using MCU to driving
Chip 113 and imaging sensor 111 are controlled, and the parallel port DVP signal of imaging sensor 111 is converted to the SPI of serial ports
Signal is transmitted.DVP is that parallel port needs more signal wire transmission, is restricted in terms of signal integrity, and anti-interference ability is weak,
And SPI is serial line interface, it is minimum that 4 lines is only needed just to can be carried out signal transmission, and strong antijamming capability, signal integrity aspect
It is restricted small.
Auto-focusing can be quickly realized through this embodiment, and quickly imaging sensor 111 is controlled and adopted
Collect image, MCU carries out image pretreatment operation to collected multiframe fingerprint image, excellent by fingerprint image quality decision algorithm
It selects the best frame image of picture quality and is transmitted to external processor.The processor tasks of mobile phone and plate are heavy, if
Processor directly goes control driving chip 113 and imaging sensor 111 that can occupy its valuable time, and auto-focusing and image
The process of quality judging is to need successive ignition that can occupy the more time, and the efficiency of such processor will be greatly reduced.Using MCU
It is greatly improved the fingerprint recognition response time after processing locality, was mentioned by the contrast test fingerprint recognition response time from 1.0 seconds
Height was by 0.3 second.
Embodiment 5
The attachment of optical identification mould group and self light emitting display panel 30 uses glue, in the upper surface of shell 100 around convex
The lower section that one layer of adhesive mounts self light emitting display panel 30 again is spread in the painting of 101 surrounding of lens；The described glue can be
The glue of liquid or the glue film (film) of solid, preferably glue film so as not to paste glue overflowed during stickup cover it is convex
Lens 101 influence to be imaged.Under normal conditions, the adhesive has good adhesive property as far as possible, can be stable by shell
Body 100 is bonded on self light emitting display panel 30.
Embodiment 6
As shown in Figure 6,7, the convex lens 101 is equipped with 2 pieces, and 2 pieces of convex lenses 101 are put side by side in same level
It sets, by 2 pieces of convex lenses 101 to defocused, in the effective coverage of imaging sensor 111 generates two pieces of fingerprint images, and two pieces
Fingerprint image has intersection, and intersection is close to the middle part of imaging sensor 111, is effective fingerprint image, can
To increase effective fingerprint image acquisition region, in actual installation in use, overlapping region can achieve entire fingerprint image
50%, i.e. the scheme of biconvex lens 101 can effectively improve image acquisition region 50%.
Array is formed according to 3 convex lenses 101, array is when being arranged successively, and the effective pickup area of fingerprint can increase
To 100%, but occupied space will increase；When array is equilateral triangle, the effective pickup area of fingerprint can increase to 75%, phase
It can be reduced compared with occupied space when being arranged successively.
And so on, the effective fingerprint collecting region of increase of 3 or more convex lenses 101, example can also be utilized more than
If the convex lens 101 is equipped with 4 pieces, 4 pieces of convex lenses 101 arrange arrangement in same level with two rows two and place；This field
Known, fingerprint image effective coverage is bigger, and algorithm for recognizing fingerprint efficiency is higher, and recognition speed is faster.Although increasing convex lens
101 numbers of mirror, can effectively increase fingerprint image acquisition region, but will increase mould group cost, and manufacturing process difficulty also will increase, and
And volume also will increase, and need to balance parameters, the quantity of convex lens 101 is chosen in compromise.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of display screen optical finger print identifies electronic device, which is characterized in that including self light emitting display panel (30) and setting
Optical identification mould group below self light emitting display panel (30) identification region (31), the optical identification mould group include automatic right
Burnt module, imaging sensor (111), when finger (20) is placed on identification region (31), self light emitting display panel (30) hair
Illumination out is mapped on the finger (20) and reflexes to automatic focusing module to defocused, is imaged on imaging sensor (111).
2. a kind of display screen optical finger print according to claim 1 identifies electronic device, which is characterized in that the self-luminous
The upper surface of display screen (30) is covered with cover board (32), and the cover board (32) is transparent material, and the upper surface of the cover board (32) applies
There is anti-fingerprint vestiges coating (33), which is transparent material.
3. a kind of display screen optical finger print according to claim 1 identifies electronic device, which is characterized in that described automatic right
Burnt module includes shell (100), convex lens (101), drive module, and the drive module includes driving chip (113) and drives
Dynamic device, is covered with optical filter (112), and the convex lens (101) is mounted in driving device in the upper end of convex lens (101),
The driving chip (113) is used to realize focusing, described image sensor by control driving device mobile convex lens (101)
(111), driving device is installed in shell (100), and imaging sensor (111) is located at the underface of driving device.
4. a kind of display screen optical finger print according to claim 3 identifies electronic device, which is characterized in that the convex lens
(101) at least provided with 2 pieces, the convex lens (101) is arranged in same level.
5. a kind of display screen optical finger print according to claim 4 identifies electronic device, which is characterized in that the convex lens
(101) 3 pieces are equipped with, 3 pieces of convex lenses (101) are placed side by side in same level.
6. a kind of display screen optical finger print according to claim 4 identifies electronic device, which is characterized in that the convex lens
(101) 4 pieces are equipped with, 4 pieces of convex lenses (101) arrange arrangement in same level with two rows two and place.
7. a kind of display screen optical finger print according to claim 3 identifies electronic device, which is characterized in that the shell
(100), driving chip (113) is arranged on one piece of Rigid Flex (115), is additionally provided on the Rigid Flex (115)
Connector (114), the connector (114) are used for transmission driving chip (113), the data in imaging sensor (111).
8. a kind of display screen optical finger print according to claim 7 identifies electronic device, which is characterized in that the connector
(114) SPI interface is used.
9. a kind of display screen optical finger print recognition methods, which is characterized in that when needing to carry out fingerprint recognition, light the self-luminous
The pixel (35) of display screen (30) identification region (31), when finger (20) is located at identification region (31), the identification region
(31) light issued is irradiated to the valley line (20a) of finger (20) and crestal line (20b) and is reflected, then through pixel (35)
Between gap (36) be refracted to the automatic focusing module, and by the automatic focusing module to defocused, in image sensing
Clearly fingerprint image is formed on device (111), described image sensor (111) is acquired the fingerprint image, and will acquisition
To fingerprint image be sent to processor.
10. a kind of display screen optical finger print recognition methods according to claim 9, which is characterized in that the auto-focusing
The auto-focusing mode of module is passive type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637834.8A CN109740514A (en) | 2018-12-29 | 2018-12-29 | A kind of display screen optical finger print identification electronic device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637834.8A CN109740514A (en) | 2018-12-29 | 2018-12-29 | A kind of display screen optical finger print identification electronic device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109740514A true CN109740514A (en) | 2019-05-10 |
Family
ID=66362276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637834.8A Pending CN109740514A (en) | 2018-12-29 | 2018-12-29 | A kind of display screen optical finger print identification electronic device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109740514A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110728250A (en) * | 2019-10-21 | 2020-01-24 | 云谷（固安）科技有限公司 | Fingerprint identification device and method, display panel and electronic equipment |
| CN110945526A (en) * | 2019-10-25 | 2020-03-31 | 深圳市汇顶科技股份有限公司 | Method and device for collecting fingerprint under screen, electronic equipment and storage medium |
| CN111108513A (en) * | 2019-12-04 | 2020-05-05 | 深圳市汇顶科技股份有限公司 | Fingerprint collection system, LCD touch screen and electronic equipment under screen |
| CN111108511A (en) * | 2019-07-12 | 2020-05-05 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111353423A (en) * | 2019-06-21 | 2020-06-30 | 神盾股份有限公司 | Fingerprint sensing module and fingerprint sensing method |
| CN112016541A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Electronic equipment and fingerprint identification image acquisition method |
| CN112614115A (en) * | 2020-12-28 | 2021-04-06 | 中国第一汽车股份有限公司 | Power battery water seepage monitoring method |
| WO2021248768A1 (en) * | 2020-06-07 | 2021-12-16 | 神盾股份有限公司 | Electronic device |
| CN114115453A (en) * | 2021-10-21 | 2022-03-01 | 维沃移动通信有限公司 | Electronic device |
| US11776301B2 (en) | 2019-08-02 | 2023-10-03 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint detection apparatus and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198289A (en) * | 2012-01-04 | 2013-07-10 | 金佶科技股份有限公司 | Dual-lens fingerprint identification method and device thereof |
| CN103995339A (en) * | 2014-05-29 | 2014-08-20 | 厦门新鸿洲精密科技有限公司 | Motor structure with voice rings arranged in middle |
| US9250660B2 (en) * | 2012-11-14 | 2016-02-02 | Laserlock Technologies, Inc. | “HOME” button with integrated user biometric sensing and verification system for mobile device |
| CN108701231A (en) * | 2018-05-17 | 2018-10-23 | 深圳市汇顶科技股份有限公司 | The lower fingerprint sensing system of screen and electronic device |
| CN208027382U (en) * | 2018-02-06 | 2018-10-30 | 深圳市汇顶科技股份有限公司 | The lower biometric devices of screen and electronic equipment |
-
2018
- 2018-12-29 CN CN201811637834.8A patent/CN109740514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198289A (en) * | 2012-01-04 | 2013-07-10 | 金佶科技股份有限公司 | Dual-lens fingerprint identification method and device thereof |
| US9250660B2 (en) * | 2012-11-14 | 2016-02-02 | Laserlock Technologies, Inc. | “HOME” button with integrated user biometric sensing and verification system for mobile device |
| CN103995339A (en) * | 2014-05-29 | 2014-08-20 | 厦门新鸿洲精密科技有限公司 | Motor structure with voice rings arranged in middle |
| CN208027382U (en) * | 2018-02-06 | 2018-10-30 | 深圳市汇顶科技股份有限公司 | The lower biometric devices of screen and electronic equipment |
| CN108701231A (en) * | 2018-05-17 | 2018-10-23 | 深圳市汇顶科技股份有限公司 | The lower fingerprint sensing system of screen and electronic device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112016541A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Electronic equipment and fingerprint identification image acquisition method |
| CN111353423A (en) * | 2019-06-21 | 2020-06-30 | 神盾股份有限公司 | Fingerprint sensing module and fingerprint sensing method |
| CN111108511B (en) * | 2019-07-12 | 2023-08-22 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111108511A (en) * | 2019-07-12 | 2020-05-05 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| US11776301B2 (en) | 2019-08-02 | 2023-10-03 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint detection apparatus and electronic device |
| CN110728250A (en) * | 2019-10-21 | 2020-01-24 | 云谷（固安）科技有限公司 | Fingerprint identification device and method, display panel and electronic equipment |
| CN110945526A (en) * | 2019-10-25 | 2020-03-31 | 深圳市汇顶科技股份有限公司 | Method and device for collecting fingerprint under screen, electronic equipment and storage medium |
| CN110945526B (en) * | 2019-10-25 | 2023-10-24 | 深圳市汇顶科技股份有限公司 | Under-screen fingerprint acquisition method and device, electronic equipment and storage medium |
| CN111108513A (en) * | 2019-12-04 | 2020-05-05 | 深圳市汇顶科技股份有限公司 | Fingerprint collection system, LCD touch screen and electronic equipment under screen |
| CN111108513B (en) * | 2019-12-04 | 2023-09-05 | 深圳市汇顶科技股份有限公司 | Under-screen fingerprint acquisition device, LCD touch screen and electronic equipment |
| WO2021248768A1 (en) * | 2020-06-07 | 2021-12-16 | 神盾股份有限公司 | Electronic device |
| CN112614115A (en) * | 2020-12-28 | 2021-04-06 | 中国第一汽车股份有限公司 | Power battery water seepage monitoring method |
| CN112614115B (en) * | 2020-12-28 | 2024-03-26 | 中国第一汽车股份有限公司 | Power battery water seepage monitoring method |
| CN114115453A (en) * | 2021-10-21 | 2022-03-01 | 维沃移动通信有限公司 | Electronic device |
| CN114115453B (en) * | 2021-10-21 | 2024-02-09 | 维沃移动通信有限公司 | Electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109740514A (en) | A kind of display screen optical finger print identification electronic device and method | |
| CN111767894B (en) | Under-screen biological feature recognition device and electronic equipment | |
| US10963667B2 (en) | Under-screen biometric identification apparatus and electronic device | |
| CN209895353U (en) | Fingerprint identification device and electronic equipment | |
| CN108885696B (en) | Under-screen biological feature recognition device and electronic equipment | |
| CN110472618A (en) | Shield the sensor module of lower finger print identifying and shields lower fingerprint certification device | |
| CN110023956A (en) | Optical image acquisition unit, optical image acquisition system and electronic equipment | |
| CN106599768A (en) | Optical device | |
| CN104156649A (en) | Vein recognition imaging device and method for safety authentication of mobile terminal | |
| CN110580473A (en) | Fingerprint identification subassembly, display module and electronic equipment | |
| CN208607675U (en) | Shield lower biometric devices and electronic equipment | |
| CN102567706A (en) | Human face identification device and method | |
| CN109409249A (en) | Information processing method and electronic equipment | |
| CN101477235B (en) | Bottom-contact golden finger type fixed-focus mobile phone camera module and its assembly method | |
| CN201498007U (en) | Hybrid fingerprint and palm print acquisition instrument | |
| CN210052170U (en) | Under-screen biological feature recognition device and electronic equipment | |
| CN206757644U (en) | Banister read head | |
| EP3591578B1 (en) | Under-screen biometric identification apparatus and electronic device | |
| KR200367917Y1 (en) | Iris identification camera module having stable actinomenter | |
| CN209707850U (en) | Electronic equipment | |
| CN214475050U (en) | Optical module and electronic equipment | |
| CN2508306Y (en) | Vital iris picture collecting device | |
| CN210295132U (en) | Fingerprint identification subassembly, display module and electronic equipment | |
| CN201556215U (en) | Double-reflection fingerprint acquisition instrument | |
| CN215264841U (en) | Optical fingerprint identification module under translation formula screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |