CN110062931A - Fingerprint identification device, fingerprint identification method and electronic equipment - Google Patents

Fingerprint identification device, fingerprint identification method and electronic equipment Download PDF

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Publication number
CN110062931A
CN110062931A CN201980000376.3A CN201980000376A CN110062931A CN 110062931 A CN110062931 A CN 110062931A CN 201980000376 A CN201980000376 A CN 201980000376A CN 110062931 A CN110062931 A CN 110062931A
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China
Prior art keywords
area
finger
fingerprint
display screen
optical
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CN201980000376.3A
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CN110062931B (en
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姚国峰
沈健
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Huiding Technology Co Ltd
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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
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)

Abstract

A kind of fingerprint identification device and fingerprint identification method are provided, can be improved fingerprint recognition performance.The device includes: optical path guide structure, it is arranged below display screen, the inclination optical signal with special angle for will be reflected when irradiating finger out of display screen pressing area from the finger, the sensing unit into image capture module below the first area of the display screen is guided, the first area is located in the non-pushed region of the display screen；Described image acquisition module is arranged below the optical path guide structure, for obtaining the fingerprint image of the finger according to the inclination optical signal.

Description

Fingerprint identification device, fingerprint identification method and electronic equipment
Technical field
This application involves information technology fields, and more particularly, to a kind of fingerprint identification device, fingerprint identification method And electronic equipment.
Background technique
Fingerprint identification technology is the reflection that the light issued by acquisition light source is reflected to form in finger under optical panel Light, the finger print information of finger is carried in reflected light, to realize the lower fingerprint recognition of screen.It is dry for special finger, such as more Finger, there are the air gap between the paddy and display screen of fingerprint, which will lead to light and serious diffusing scattering occurs, To which the ridge for influencing fingerprint and paddy are to the reflection differences of light, so that being imaged to obtain the comparison of fingerprint image based on the reflected light Degree can reduce, and affect the performance of fingerprint recognition.
Summary of the invention
The embodiment of the present application provides a kind of fingerprint identification device, fingerprint identification method and electronic equipment, can be improved fingerprint Recognition performance.
In a first aspect, providing a kind of fingerprint identification device, comprising: optical path guide structure is arranged below display screen, uses The inclination optical signal with special angle reflected when by finger is irradiated out of display screen pressing area from the finger, draws It is directed at the sensing unit in image capture module below the first area of the display screen, the first area is located at described In the non-pushed region of display screen；Described image acquisition module is arranged below the optical path guide structure, for according to Optical signal is tilted, the fingerprint image of the finger is obtained.
In one possible implementation, the optical path guide structure is also used to: will be irradiated out of described pressing area The vertical optical signal reflected when finger from the finger, guidance are located at below the pressing area into described image acquisition module Sensing unit；Wherein, described image acquisition module is used for: if the fingerprint image according to the vertical light signal acquisition loses It loses, then the fingerprint image according to the oblique light signal acquisition.
In one possible implementation, described image acquisition module acquires exposure used in the inclination optical signal Time is greater than and acquires the time for exposure used in the vertical optical signal.
In one possible implementation, the optical path guide structure includes: microlens array, wherein is located at described Lenticule below pressing area is for assembling the vertical optical signal, the lenticule below the first area For being assembled to the inclination optical signal；Light blocking layer, be arranged below the microlens array, the light blocking layer include with The corresponding multiple apertures of multiple lenticules, wherein each aperture is for drawing the optical signal that its corresponding lenticule is assembled It is directed at described image acquisition module.
In one possible implementation, described device further includes processing module, and the processing module is used for: obtaining institute State the information of pressing area and the first area, wherein the distance between the pressing area and the first area are roots Information is descended to determine accordingly: the display screen to the height between described image acquisition module, adjacent apertures in the light blocking layer The distance between and lenticule focal length.
In one possible implementation, the distance between the pressing area and the first area be d, d=h × S/f, wherein h is the display screen to the height between described image acquisition module, s be in the light blocking layer adjacent apertures it Between distance, f be lenticule focal length.
In one possible implementation, the first area is located at being covered in the non-pushed region by the finger In lid and the shadow region not contacted with the finger.
In one possible implementation, the area equation of the area of the first area and the pressing area.
In one possible implementation, described image acquisition module is spliced to form by multiple optical fingerprint sensors.
In one possible implementation, described image acquisition module includes an optical fingerprint sensor.
Second aspect provides a kind of fingerprint identification method, and the method is executed by fingerprint identification device, described device packet Include the optical path guide structure and image capture module being successively set below display screen, which comprises the optical path guidance The oblique light with special angle that structure will reflect when irradiating finger out of the display screen pressing area from the finger Signal, sensing unit of the guidance into described image acquisition module below the first area of the display screen, described first Region is located in the non-pushed region of the display screen；Described image acquisition module is according to the inclination optical signal, described in acquisition The fingerprint image of finger.
In one possible implementation, the method also includes: optical path guidance knot will be from the pressing area The vertical optical signal reflected when interior irradiation finger from the finger, guidance are located at the pressing area into described image acquisition module Sensing unit below domain；Wherein, described image acquisition module obtains the fingerprint image of the finger according to the inclination optical signal Picture, comprising: if described image acquisition module fingerprint image according to the vertical light signal acquisition fails, incline according to Fingerprint image described in skew ray signal acquisition.
In one possible implementation, described image acquisition module acquires exposure used in the inclination optical signal Time is greater than and acquires the time for exposure used in the vertical optical signal.
In one possible implementation, the optical path guide structure includes: microlens array, wherein is located at described Lenticule below pressing area is for assembling the vertical optical signal, the lenticule below the first area For being assembled to the inclination optical signal；Light blocking layer, be arranged below the microlens array, the light blocking layer include with The corresponding multiple apertures of multiple lenticules, wherein each aperture is for drawing the optical signal that its corresponding lenticule is assembled It is directed at described image acquisition module.
In one possible implementation, the fingerprint identification device further includes processing module, and the processing module is used In: obtain the information of the pressing area and the first area, wherein between the pressing area and the first area Distance is determined according to following information: the display screen between described image acquisition module height, in the light blocking layer The focal length of the distance between adjacent apertures and lenticule.
In one possible implementation, the distance between the pressing area and the first area be d, d=h × S/f, wherein h is the display screen to the height between described image acquisition module, s be in the light blocking layer adjacent apertures it Between distance, f be lenticule focal length.
In one possible implementation, the first area is located at being covered in the non-pushed region by the finger In lid and the shadow region not contacted with the finger.
In one possible implementation, the area equation of the area of the first area and the pressing area.
In one possible implementation, described image acquisition module is spliced to form by multiple optical fingerprint sensors.
In one possible implementation, described image acquisition module includes an optical fingerprint sensor.
The third aspect provides a kind of terminal device, any possible realization side including first aspect or first aspect Fingerprint identification device in formula.
Based on the above-mentioned technical proposal, the optical path guide structure in fingerprint identification device can be by light source in finger pressing area Interior irradiation finger and the inclination optical signal for handling digital reflex, guidance are located in the non-pushed region of finger into image capture module On sensing unit below specific region, thus fingerprint image of the image capture module according to the oblique light signal acquisition finger. Diffusive intensity due to oblique light ray in finger except the Diffusive intensity generated lower than vertical light, fingerprint is known Those are also easy to produce irreflexive special finger, such as dry finger during not, and the comparison of collected fingerprint image can be improved Degree improves fingerprint detection performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the electronic equipment that the application can be applicable in.
Fig. 2 is the structural schematic diagram using the fingerprint identification device of multisensor connecting method.
Fig. 3 is schematic diagram of the normal finger when executing fingerprint detection.
Fig. 4 is schematic diagram of the dry finger when executing fingerprint detection.
Fig. 5 is the schematic block diagram of the fingerprint identification device of the embodiment of the present application.
Fig. 6 is the schematic illustration of the fingerprint recognition of the embodiment of the present application.
Fig. 7 is the schematic illustration of the fingerprint recognition of the embodiment of the present application.
Fig. 8 is the schematic diagram of the optical path guide structure of the embodiment of the present application.
Fig. 9 is the schematic flow chart of the fingerprint identification method of the embodiment of the present application.
Figure 10 is a kind of schematic flow chart of specific implementation of the fingerprint identification method of the embodiment of the present application.
Figure 11 is the schematic block diagram of the electronic equipment of the embodiment of the present application.
Specific embodiment
Below in conjunction with attached drawing, technical solutions in the embodiments of the present application is described.
It should be understood that the embodiment of the present application can be applied to optical fingerprint systems, including but not limited to optical finger print identification system System and the medical diagnostic products being imaged based on optical finger print, the embodiment of the present application are only illustrated by taking optical fingerprint systems as an example, But any restriction should not be constituted to the embodiment of the present application, the embodiment of the present application is equally applicable to other using optical image technology System etc..
As a kind of common application scenarios, optical fingerprint systems provided by the embodiments of the present application can be applied in intelligent hand Machine, tablet computer and other with the mobile terminal of display screen or other terminal devices；More specifically, being set in above-mentioned terminal In standby, fingerprint identification device can be specially optical finger print device, can be set regional area below display screen or Whole region, to form (Under-display or Under-screen) optical fingerprint systems under screen.Alternatively, the fingerprint Identification device some or all of can also be integrated to inside the display screen of the terminal device, to form (In- in screen Display or In-screen) optical fingerprint systems.
The structural schematic diagram for the terminal device that can be applicable in for the embodiment of the present application as shown in Figure 1, the terminal device 10 Including display screen 120 and optical finger print device 130, wherein the optical finger print device 130 is arranged under the display screen 120 The regional area of side.The optical finger print device 130 includes optical fingerprint sensor, and the optical fingerprint sensor includes having The induction arrays 133 of multiple optical sensor units 131.The induction arrays region or its induction region are the optics The fingerprint collecting region 121 of fingerprint device 130.As shown in Figure 1, the fingerprint collecting region 121 is located at the display screen 120 Among display area.In a kind of alternate embodiment, other positions can also be arranged in the optical finger print device 130, such as The non-transparent region in edge of the side or the terminal device 10 of the display screen 120, and will be described by light path design The optical signal of at least partly display area of display screen 120 directs into the optical finger print device 130, so that the fingerprint Pickup area 121 is physically located the display area of the display screen 120.In a kind of alternate embodiment, the optical finger print Device 130 can also be arranged in other positions, for example, the side of the display screen 120 or the edge of the terminal device 10 it is non- Transmission region, and by light path design be directed to the optical signal of at least partly display area of the display screen 120 described Optical finger print device 130, so that the fingerprint collecting region 121 is physically located the display area of the display screen 120.
It should be appreciated that the area in the fingerprint collecting region 121 can be with the induction arrays of the optical finger print device 130 Area it is different, such as example, by the light path design, reflective folding light path design or other convergences of rays of lens imaging Or the light path designs such as reflection, the area in the fingerprint collecting region 121 of the optical finger print device 130 can be made to be greater than described The area of 130 induction arrays of optical finger print device.Other substitution implementations in, if using such as light collimating fashion into The guidance of row optical path, the fingerprint collecting region 121 of the optical finger print device 130 can also be designed to and the optical finger print device The area of 130 induction arrays is almost the same.
Therefore, user is when needing to be unlocked the terminal device or other fingerprint authentications, it is only necessary to By finger pressing in the fingerprint collecting region 121 for being located at the display screen 120, it can realize that fingerprint inputs.Since fingerprint is examined Surveying can realize in screen, therefore fingerprint is arranged without the special reserved space in its front in terminal device 10 using the above structure Key (such as Home key), so as to which using screen scheme comprehensively, i.e., the display area of the described display screen 120 can extend substantially To the front of entire terminal device 10.
In one implementation, as shown in Figure 1, the optical finger print device 130 includes light detecting portion 134 and optics Component 132.The light detecting portion 134 includes the induction arrays and the reading circuit with induction arrays electric connection And other auxiliary circuits, a chip (Die) can be produced on by semiconductor technology, for example, optical imagery chip or Optical fingerprint sensor.The induction arrays are specially optical detector (Photo detector) array comprising multiple is in battle array The optical detector of column distribution, the optical detector can be used as optical sensor unit as described above.The optical module 132 It can be set in the top of the induction arrays of the light detecting portion 134, filter layer (Filter), leaded light can be specifically included Layer or optical path guide structure and other optical elements, the filter layer can be used for filtering out the environment light for penetrating finger, and institute State optical waveguide layer or optical path guide structure be mainly used for being directed to from the reflected reflected light of finger surface the induction arrays into Row optical detection.
In specific implementation, the optical module 132 can be encapsulated in the same optics with the light detecting portion 134 and refer to Line component.For example, the optical module 132 can be encapsulated in the same optical finger print chip with the optical detecting parts 134, The optical module 132 can also be arranged in the chip exterior where the light detecting portion 134, than optics group as will be described Part 132 is fitted in above the chip, or the subelement of the optical module 132 is integrated among said chip.
Wherein, there are many implementations for the optical waveguide layer in the optical module 132 or optical path guide structure, for example, institute Stating optical waveguide layer can be specially collimator (Collimator) layer being made in semi-conductor silicon chip, single with multiple collimations Member or microwell array, the collimation unit can be specially aperture, from the reflected reflected light of finger, impinge perpendicularly on The light of the collimation unit can be passed through and be received by optical sensor unit below, and the excessive light of incident angle exists It is attenuated inside the collimation unit by multiple reflections, therefore each optical sensor unit can only receive it just substantially The reflected reflected light of fingerprint lines of top, so that the induction arrays can detect the fingerprint image of finger.
In another implementation, the optical waveguide layer or optical path guide structure may be optical lens (Lens) Layer has one or more lens units, such as the lens group of one or more non-spherical lens compositions, and being used for will be from hand The reflected light that digital reflex is returned converges to the induction arrays of light detecting portion 134 below, so that the induction arrays can To be imaged based on the reflected light, to obtain the fingerprint image of the finger.Optionally, the optical lens mirror layer is in institute Pin hole can also be formed with by stating in the optical path of lens unit, the pin hole can cooperate the optical lens mirror layer to expand the optics The visual field of fingerprint device, to improve the fingerprint imaging effect of the optical finger print device 130.
In other implementations, the optical waveguide layer or optical path guide structure can also specifically use lenticule (Micro-Lens) layer, the microlens layer have the microlens array formed by multiple lenticules, can pass through semiconductor Growth technique or other techniques are formed in above the induction arrays of the light detecting portion 134, and each lenticule can To correspond respectively to one of sensing unit of the induction arrays.Also, the microlens layer and the sensing unit it Between can also form other optical film layers, such as dielectric layer or passivation layer.More specifically, the microlens layer and the induction It can also include the light blocking layer (or for light shield layer) with micropore between unit, wherein to be formed in its corresponding micro- for the micropore Between lens and sensing unit, the light blocking layer can stop the optical interference between contiguous microlens and sensing unit, and make Light corresponding to the sensing unit is obtained to converge to inside the micropore by the lenticule and transmit via the micropore To the sensing unit to carry out optical finger print imaging.
It should be appreciated that several implementations of above-mentioned optical waveguide layer or optical path guide structure can be used alone and can also tie It closes and uses.For example, lenticule can further be arranged above or below the collimator layer or the optical lens mirror layer Layer.Certainly, when the collimator layer or the optical lens mirror layer are used in combination with the microlens layer, specific lamination knot Structure or optical path may need to be adjusted according to actual needs.
As a kind of optional implementation, the display screen 120 can be using the display with spontaneous light display unit Screen, such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display screen or miniature luminous two Pole pipe (Micro-LED) display screen.For using OLED display screen, the optical finger print device 130 can use described What the display unit (i.e. OLED light source) that OLED display screen 120 is located at the fingerprint collecting region 121 was detected as optical finger print Motivate light source.When the pressing of finger 140 is at the fingerprint collecting region 121, display screen 120 is to the fingerprint collecting region 121 The target finger 140 of top issues light beam 111, which reflects to form reflected light or warp on the surface of finger 140 Cross 140 scattering-in of finger and form scattering light, in the related patent applications, for ease of description, above-mentioned reflected light and dissipate It penetrates light and is referred to as reflected light.Since the ridge (ridge) 141 of fingerprint and paddy (valley) 142 are different for the albedo of light, because This, the reflected light 151 from fingerprint ridge and the reflected light from fingerprint valley 152 have different light intensity, and reflected light passes through optics After component 132, it is received and converted to corresponding electric signal by the induction arrays 133 in optical finger print device 130, i.e. fingerprint is examined Survey signal；Fingerprint image data can be obtained based on the fingerprint detection signal, and can be with further progress fingerprint matching Verifying, to realize optical finger print identification function in terminal device 10.
In other implementations, the optical finger print device 130 can also using built-in light source or external light source come Optical signal for carrying out fingerprint detection is provided.In this case, the optical finger print device 130 can be adapted for non-spontaneous Light display screen, such as liquid crystal display or other passive light emitting displays.To apply with backlight module and liquid crystal surface For the liquid crystal display of plate, fingerprint detection under the screen to support liquid crystal display, the optical finger print system of the terminal device 10 System can also include the excitation light source for optical finger print detection, and the excitation light source can be specially infrared light supply or specific The light source of wavelength non-visible light can be set below the backlight module of the liquid crystal display or be arranged in the terminal Fringe region below the cover sheet of equipment 10, and liquid crystal display panel or protection can be set in the optical finger print device 130 It guides below the fringe region of cover board and by optical path so that fingerprint detection light can reach the optical finger print device 130； Alternatively, the optical finger print device 130 also can be set below the backlight module, and the backlight module passes through to diffusion The film layers such as piece, blast piece, reflector plate carry out aperture or other optical designs with allow fingerprint detection light pass through liquid crystal display panel and Backlight module simultaneously reaches the optical finger print device 130.When the use optical finger print device 130 use built-in light source or outside Light source is set come when providing the optical signal for carrying out fingerprint detection, testing principle is consistent with content is described above.
It should be understood that the terminal device 10 further includes transparency protected cover board, and the cover board can in specific implementation Think glass cover-plate or sapphire cover board, be located at the top of the display screen 120 and cover the terminal device 10 just Face.Therefore, in the embodiment of the present application, so-called finger pressing actually refers to pressing in the display in the display screen 120 The cover board of 120 top of screen or the protective layer of the covering cover board.
In certain embodiments, the optical finger print device 130 can only include an optical fingerprint sensor, this time The area in the fingerprint collecting region 121 of fingerprint device 130 is smaller and position is fixed, therefore user needs when carrying out fingerprint input Finger is pressed into the specific position in the fingerprint collecting region 121, otherwise optical finger print device 130 possibly can not collect Fingerprint image and cause user experience bad.
In further embodiments, the optical finger print device 130 can specifically include multiple optical fingerprint sensors.Institute The lower section that multiple optical fingerprint sensors can be disposed side by side on the display screen 120 by connecting method is stated, and the multiple The induction region of optical fingerprint sensor collectively forms the fingerprint collecting region 121 of the optical finger print device 130.Namely It says, the fingerprint collecting region 121 of the optical finger print device 130 may include multiple subregions, and each subregion respectively corresponds In the induction region of one of optical fingerprint sensor, thus by the fingerprint collecting region 121 of the optical finger print mould group 130 It can extend to the main region of the lower half portion of the display screen, that is, expand to the usual pressing area of finger, to realize blind It inputs and operates by formula fingerprint.Alternatively, when the optical fingerprint sensor quantity is enough, the fingerprint collecting region 130 It can be extended to half of display area even entire display area, to realize half screen or full frame fingerprint detection.
Fig. 2 show the schematic diagram that optical finger print device 130 includes multiple optical fingerprint sensors.The multiple optics refers to Line sensor can be disposed side by side on the lower section of the display screen 120 for example, by modes such as splicings, and the multiple optics refers to The induction region of line sensor collectively forms the fingerprint collecting region 121 of the optical finger print device 130.In other words, described The fingerprint collecting region 121 of optical finger print device 130 may include multiple subregions, and each subregion corresponds respectively to wherein one A optical fingerprint sensor, in other words, each subregion correspond respectively to the induction zone of one of optical sensor array 133 Domain.
Optionally, corresponding with multiple optical fingerprint sensors of optical finger print device 130, in the optical module 132 There can be multiple optical path guide structures, each optical path guide structure respectively corresponds an optical fingerprint sensor, and pastes respectively Close the top that its corresponding optical fingerprint sensor is set.Alternatively, the multiple optical fingerprint sensor can also share one A whole optical path guide structure, i.e., the described optical path guide structure have a sufficiently large area to cover the multiple optics The induction arrays of fingerprint sensor.In addition, the optical module 132 can also include other optical elements, such as filter layer or Other optical diaphragms, can be between the optical path guide structure and the optical fingerprint sensor or the display screen Between 120 and the optical path guide structure, it is mainly used for isolating the influence that external interference light detects optical finger print.Wherein, institute It states optical filter and can be used for filtering out and penetrate the went forward side by side display screen 120 of finger and enter the environment of the optical fingerprint sensor Light, it is similar with the optical path guide structure, the optical filter can for each optical fingerprint sensor be respectively set with into Row interference light filters out, or can also cover the multiple optical finger print sensing simultaneously using the optical filter of a large area Device.
The optical path modulation device can also be replaced using optical lens, can pass through lightproof material above the optical lens Material formed aperture cooperate the optical lens by fingerprint detection light converge to lower section optical fingerprint sensor with realize fingerprint at Picture.Analogously, each optical fingerprint sensor can be respectively configured an optical lens and carry out fingerprint imaging, alternatively, institute It states multiple optical fingerprint sensors also and can use the same optical lens to realize convergence of rays and fingerprint imaging.It replaces at other For in embodiment, each optical fingerprint sensor can also even have that there are two induction arrays (Dual Array) or multiple Induction arrays (Multi-Array), and configure two or more optical lens simultaneously and cooperate described two or multiple induction arrays Optical imagery is carried out, to reduce image-forming range and enhance imaging effect.
In the embodiment of the present application, above-mentioned optical finger print device is referred to as optical fingerprint identification device, fingerprint recognition Device etc.；Optical detecting parts are referred to as image capture module, imaging sensor, optical fingerprint sensor etc.；Image is adopted Collection module fingerprint collecting region be referred to as fingerprint identification region, fingerprint detection region, image capture module induction zone Domain etc.；Optical path guide structure is referred to as angle screening structure, angle screening component etc.；Sensing unit is referred to as photosensitive Unit, optical sensor unit etc.；Induction arrays are referred to as sensing unit array, photosensitive single array etc..
The embodiment of the present application can be applied to the detection of all kinds of fingers, more particularly to be suitable for the detection of dry finger.It is so-called Dry finger, refer to relatively dry finger or more clean finger, for example, just the finger of washed hand, when just getting up Finger etc., the fat secretion content of finger epidermis is lower at this time.When dry finger and display screen contact, finger is contacted with display screen Part gap (i.e. the paddy of fingerprint) in cause light that serious diffusing reflection occurs due to there are large quantity of air so that image is adopted The collected effective optical signal for carrying finger print information of collection module is diffusely reflected light interference, so as to cause its collected fingerprint image The poor contrast of picture, it is difficult to carry out effective fingerprint matching.
It is described in detail in conjunction with Fig. 3 and Fig. 4.Fig. 3 show the fingerprint recognition of normal finger, when finger 140 and display When 120 contact of screen, since there are greases in the paddy of finger, when incident light 111 is incident to finger 140, in the ridge 141 of fingerprint and paddy It is respectively formed normal reflected light signal 151 and 152 on 142, obtained fingerprint image is imaged according to reflected light signal 151 and 152 As shown in 30 in Fig. 3.And in Fig. 4, finger 140 is dry finger, when finger 140 and display screen 120 contact, the paddy of fingerprint The 152a that diffuses is formed due to there are large quantity of air at 142, to influence the collected fingerprint image of image capture module 130 Contrast, the fingerprint image being imaged according to reflected light signal 151 and 152a is as indicated at 40 in fig 4.As can be seen that due to In Fig. 4 at the paddy 142 of fingerprint caused by diffusing reflection effect, cause the clarity of fingerprint image 40 obviously more clear than fingerprint image 30 Clear degree is poor.
In order to solve the problems, such as the fingerprint recognition of dry finger, inclination optical signal opponent is used in the embodiment of the present application The fingerprint image of finger is acquired.That is, image capture module acquires oblique incidence to finger and handles the optical signal of digital reflex, and According to the fingerprint image of the oblique light signal acquisition finger.This is because with the light of larger angle incidence, Diffusive intensity Lower than with the light of low-angle incidence.
Using an example in living as explanation.When scanning the two dimensional code of shared bicycle at night, if mobile phone faces Two dimensional code is scanned, and the flash lamp of mobile phone will lead to serious reflective, and here it is diffusing reflection effects.This when, it is only necessary to Mobile phone is suitably tilted, irradiates two dimensional code to the Ray obliquity for allowing flash lamp to issue, it will be able to which scanning is clearly two-dimentional to comparing Code pattern.
The embodiment of the present application proposes a kind of fingerprinting scheme, passes through the oblique light signal acquisition finger of acquisition finger reflection Fingerprint image, thus improve be directed to for example dry finger of special finger fingerprint recognition performance.
Fig. 5 is the schematic block diagram of the fingerprint identification device 500 of the embodiment of the present application.The fingerprint collecting area of the device 500 Domain is located in display screen.As shown in figure 5, the device 500 includes optical path guide structure 510 and image capture module 520.
Optical path guide structure 510 is arranged below display screen, when for by irradiating finger out of display screen pressing area The inclination optical signal with special angle reflected from finger, guidance are located at the first of display screen into image capture module 520 Sensing unit below region, the first area are located in the non-pushed region of display screen.
Image capture module 520 is arranged below optical path guide structure 510, for obtaining hand according to the inclination optical signal The fingerprint image of finger.
Here " pressing area " is finger in the fingerprint collecting region of image capture module 520 being located in display screen Execute pressing area when fingerprint recognition operation；" non-pushed region " is the area in the fingerprint collecting region in addition to pressing area Domain.
The first area is located in non-pushed region.For instance, it is preferred that the first area is located at the quilt in non-pushed region In finger covering and the shadow region not contacted with the finger.
The area of the first area can be equal or unequal with the area of the pressing area.
Described " being located at below pressing area ", such as can refer to positioned at the underface of the pressing area.The position In " being located at below first area ", such as can refer to positioned at the underface of the first area.But allow to a certain extent Offset, the offset will not cause significantly to influence on the acquisition of fingerprint image.
It should be noted that there is distance d between first area and pickup area, the oblique light of distance d and finger reflection is believed Number special angle θ it is related.In general, if when the first area is located in the shadow region below finger, the first area with should It is not overlapped between pickup area.But in some special circumstances, when such as special angle θ is smaller, which presses with this There may be overlappings between intermediate pressure section.Special angle θ determines by the structural parameters inside fingerprint identification device 500, behind into One step explanation.
Hereinafter, the special angle is also referred to as tilt angle.
Image capture module 520 can be made of at least one optical fingerprint sensor, for example, by using more biographies shown in Fig. 2 The mode of sensor splicing, is spliced into the optical fingerprint sensor array of 2 × 3,2 × 4 or 3 × 3 sizes, wherein each optical finger print Sensor includes a sensing unit array, includes multiple sensing units in each induction arrays.That is, image capture module 520 It is spliced to form by the more optical fingerprint sensors compared with small area.
Image capture module 520 can also be made of an optical fingerprint sensor, can be on the optical fingerprint sensor Including a sensing unit array or multiple sensing unit arrays, wherein including multiple sensing units in each induction arrays. That is, image capture module 520 can be the optical fingerprint sensor of single larger area.
Light source irradiates finger in the pressing area of finger, and the inclination optical signal for handling digital reflex passes through optical path guide structure 510 are transmitted to image capture module 520.Sensing unit in image capture module 520 below first area acquires this and inclines Skew ray signal, to obtain fingerprint image.Since oblique light ray removes the Diffusive intensity generated lower than vertical light in finger Diffusive intensity.Therefore, irreflexive special finger, such as dry finger etc. are also easy to produce for those in fingerprint identification process, it can To improve the contrast of collected fingerprint image, fingerprint detection performance is improved.
The image capture module 520 of the embodiment of the present application has the fingerprint collecting region of large area, the fingerprint collecting region The pressing area and first area of finger can be covered.Finger can execute pressing in any position in fingerprint collecting region Operation is to carry out fingerprint recognition.
Image capture module 520 can be complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS), charge-coupled device (Charge-coupled Device, CCD), thin film transistor (TFT) (Thin Film Transistor, TFT), avalanche diode etc., the embodiment of the present application is not construed as limiting this.
Display screen in the embodiment of the present application can using the various display screens in above description, such as LCD display or Person's OLED display screen.Wherein, when which is OLED display screen, the luminescent layer of the display screen includes multiple organic light-emitting diodes Pipe light source, wherein the fingerprint identification device 500 is using at least partly organic light-emitting diode light source therein as fingerprint recognition Excitation light source.
Optionally, when executing pressing operation in fingerprint collecting region when finger, the pressing area is located in the luminescent layer Interior part shines.That is, light source only irradiates finger in pressing area, and do not shine in non-pushed region.
On the one hand, due to need not shine in the fingerprint collecting region of entire large area, it can reduce display screen Power consumption；On the other hand, it can be avoided the light for not carrying finger print information from non-pushed region, to image capture module The inclination optical signal of 520 acquisitions interferes.
Optionally, optical path guide structure 510 can be also used for reflect when irradiating finger out of pressing area from the finger Vertical optical signal, guide into image capture module 520 be located at pressing area below sensing unit.
Wherein, it is alternatively possible to be acquired first by being located at the sensing unit below pressing area in image capture module 520 The vertical optical signal, and according to the fingerprint image of the vertical light signal acquisition finger.If according to the vertical light signal acquisition fingerprint Image failure, such as when the clarity of the fingerprint image cannot achieve fingerprint matching, it is located at the firstth area in image capture module 520 Sensing unit below domain acquires the inclination optical signal with special angle again, and according to the oblique light signal acquisition fingerprint image Picture.
Since the intensity of inclination optical signal is lower than the intensity of vertical optical signal, the sensing unit pair of image capture module 520 In the responsiveness decline of inclination optical signal, need to be appropriately extended the time for exposure to guarantee enough signal output.Therefore, optional Ground, image capture module 520 acquire the time for exposure used in the inclination optical signal, can be greater than and acquire the vertical optical signal institute The time for exposure used.
In one implementation, optical path guide structure 510 may include microlens array 511 and be arranged in lenticule The light blocking layer 512 of 511 lower section of array.
In microlens array 511, the lenticule below pressing area is used for the vertical optical signal of opponent's digital reflex It is assembled, inclination optical signal of the lenticule below the first area for the special angle of opponent's digital reflex is understood It is poly-.
Light blocking layer 512 includes multiple apertures corresponding with multiple lenticules, wherein each aperture is for being corresponded to The optical signal assembled of lenticule guide to image capture module 520.
Light blocking layer 512 is arranged at the back focal plane of microlens array 511.Each aperture in light blocking layer 512 can be set It sets in the focus of the corresponding lenticule of the aperture, to filter out veiling glare, realizes the screening to the light on specific direction.
Same lenticule is corresponding for guiding the aperture of vertical optical signal, corresponding with the lenticule for guiding inclination The aperture of optical signal may be different aperture.For example, being located at the lenticule below pressing area, corresponding aperture is located at it The underface that focal point, the i.e. corresponding aperture of the lenticule are located at the lenticule；And it is located at the lenticule below first area, Corresponding aperture is located at the focal point of its adjacent lens, i.e. the corresponding aperture of the lenticule obliquely downward that is located at the lenticule.
In image capture module 520 include multiple sensing units, optionally, each sensing unit can correspond to one it is micro- Lens, for receiving the optical signal of lenticule convergence.
It is located at the sensing unit below first area in image capture module 520 and is capable of inclining for collected inclination optical signal Rake angle θ is determined by the structural parameters of optical path guide structure and image capture module.For example, angle, θ is the anti-of finger reflected light Firing angle, the angle, θ are determined by the focal length of the distance between adjacent apertures in light blocking layer 512 and lenticule.
Below by taking Fig. 6 and Fig. 7 as an example, the principle of the fingerprint recognition of the embodiment of the present application is described in detail.
As shown in Figure 6 and Figure 7, the pressing area 1211 in the fingerprint collecting region 121 in display screen 120 including finger and non- Pressing area includes first area 1212 in the non-pushed region, and first area 1212 is located in non-pushed region to be covered by finger Lid and not in contact with shadow region in.The induction this is because region except finger shade area, in image capture module 520 Signal saturation occurs easily under the irradiation of environment light such as sunlight, light etc. for unit, to cause blooming (blooming) phenomenon reduces the quality of collected fingerprint image.And finger 140 with display screen 120 not in contact with part Just can play the role of covering environment light.
As shown in fig. 6, being located at the sensing unit of 1211 lower section of pressing area in image capture module 520 for acquiring finger The vertical optical signal of reflection is located at the sensing unit of 1212 lower section of first area in image capture module 520 for acquiring finger The inclination optical signal of reflection.
Incident light letter is not shown in the reflection light that finger is only shown in Fig. 6.Luminescence unit in finger pressing area It shines.The incident ray of sending may include the light towards all directions.Handling the reflection light obtained after digital reflex includes The light vertically reflected and the oblique light ray reflected with special angle.
The optical path guide structure 510 of 120 lower section of display screen includes microlens array 511 and light blocking layer 512, light blocking layer 512 In the center of any aperture be located at the focal point of its corresponding lenticule, the light come in is entered except aperture can not be by light-blocking Layer 512.
By taking aperture 5121 and aperture 5122 as an example.According to the convergence principle of convex lens it is found that only vertical incidence or closely standard The light for being directly incident to 1211 lower section of pressing area can be focused at the focus of lenticule 5111 and by corresponding aperture 5121, quilt The sensing unit of 1211 lower section of pressing area receives.It can with the light that special angle θ is incident to the lower section of first area 1212 Gather the focus in lenticule 5112 and by corresponding aperture 5122, is received by the sensing unit of 1212 lower section of first area.
Image capture module 520 is set below optical path guide structure 510, and image capture module 520 includes that multiple inductions are single Member 521.Wherein, the sensing unit work when being imaged according to vertical optical signal, positioned at 1211 lower section of pressing area；Work as root Sensing unit work when being imaged according to inclination optical signal, positioned at 1212 lower section of first area.It can reduce image in this way to adopt Collect the power consumption of module.
It is of course also possible to all sensing units work for keeping image capture module 520.At this moment, to collected When optical signal is handled, first the vertical optical signal of the sensing unit acquisition below pressing area 1211 can handle To fingerprint image, believe when the fingerprint image is unintelligible, then to the oblique light of the sensing unit acquisition of 1212 lower section of first area It number is handled to obtain fingerprint image.
The luminescence unit for being located at 1211 lower section of pressing area in luminescent layer 123 in Fig. 6 shines, and light irradiates finger 140 Part in pressing area 1211, finger 140 are incident to lenticule from the vertical optical signal 161 that pressing area internal reflection comes out It is located at the partial microlenses of 1211 lower section of pressing area in array 511, and by Image Acquisition mould after partial microlenses convergence The photosensitive unit 521 for being located at 1211 lower section of pressing area in block 520 acquires.The fingerprint letter of finger is carried in vertical optical signal 161 Breath, so as to obtain the fingerprint image of finger according to vertical optical signal 161 to carry out fingerprint matching.But vertical light is believed Numbers 161, which will receive serious diffusing reflection, influences.Therefore, for finger for example dry for special finger, it is clear possibly can not to obtain Fingerprint image so as to cause fingerprint recognition failure.
At this moment, the photosensitive unit 521 for being located at 1212 lower section of first area in image capture module 520 is opened, is still luminous The luminescence unit for being located at 1211 lower section of pressing area in layer 123 shines, and light irradiates portion of the finger 140 in pressing area 1211 Point, finger 140 is incident in microlens array 511 from the inclination optical signal 162 that pressing area internal reflection comes out is located at the firstth area The partial microlenses of 1212 lower section of domain, and it is located at first area in image capture module 520 after partial microlenses convergence The photosensitive unit 521 of 1212 lower sections acquires.The finger print information that finger is carried in optical signal 162 is tilted, so as to according to inclination Optical signal 162 obtains the fingerprint image of finger to carry out fingerprint matching.Since inclination optical signal 162 is influenced by diffusing It is small, therefore clearly fingerprint image can be obtained.
Contact control module (also referred to as touch control layer or touch screen) 122 in Fig. 6 may be used to determine finger 140 by The position of 140 shadow region of position and finger of intermediate pressure section 1211.So as to according to pressing area 1211 and first area The relationship met between 1212 determines the position of first area 1212 in the shadow region.
The touch control layer 122 can be integrated in display screen 120, be also possible to relative to the independent component of display screen 120. The touch control layer 122 can be the principle that the electric field based on induction display screen surface changes to detect the capacitive touch of finger position Control；It is also possible to the infrared light formula touch-control for whether having infrared ray to be positioned finger position by fingers blocks based on scanning, here Without limitation.
Optionally, the information of 530 available pressing area and first area of processing module, wherein the pressing area with The distance between the first area is determined according to following information: display screen to the height between image capture module 520, gear The focal length of the distance between adjacent apertures and lenticule in photosphere.
It should be understood that processing module 530 can be the processing module in the equipment using the device 500, such as terminal device Master control.Alternatively, what the processing module 530 can also be integrated with fingerprint identification device 500, it is filled as the fingerprint recognition 500 a part is set, i.e., includes processing module 530 in fingerprint identification device.
The distance between pressing area and first area can for example be determined by following formula: d=h × s/f.
Wherein, d is the distance between pressing area and first area, and h is the display screen to described image acquisition module Between height, s is the distance between adjacent apertures (pitch) in the light blocking layer, and f is the focal length of lenticule.
Still by taking Fig. 6 as an example, below first area 1212, the distance between aperture 5122 and its left side adjacent apertures are s, The focal length of its corresponding lenticule 5112 is f, it can be seen that tan θ=s/f.The collected oblique light of image capture module 520 The angle, θ of signal is determined by the structural parameters of optical path guide structure.
In addition, the size of aperture determines the screening capacity to the angle of light on light blocking layer.Bore size is smaller, diagonally The screening capacity of degree is stronger.
How to determine in order to illustrate the distance between pressing area and first area, now knows fingerprint shown in fig. 6 Other device is reduced to shown in Fig. 8, to explain.
Display screen 120 and fingerprint identification device 500 are shown in Fig. 8, wherein can know based on Fig. 7, fingerprint recognition dress The tilt angle theta for setting the inclination optical signal of 500 acquisitions should meet tan θ=s/f.Again based on shown in Fig. 8, which also meets Tan θ=h/d.Therefore, available by tan θ=s/f=h/d, d=hs/f.That is first area 1212 and pressing area 1211 The distance between d=hs/f.
Since touch control layer 122 can obtain finger in the integral position of fingerprint collecting overlying regions and the pressing area of finger The position in domain 1211.It therefore, can be according to the orientation and first area of shadow region of the finger on fingerprint collecting region The distance between 1212 and pressing area 1211 d, determine the position of first area 1212.So as to reflected according to finger When vertical optical signal carries out fingerprint recognition failure, fingerprint recognition is carried out according to the inclination optical signal with angle, θ of finger reflection.
Due to the diffusing reflection effect of the inclination optical signal of angle, θ, less than the diffusing reflection effect of vertical optical signal.Therefore, right Irreflexive finger is easily caused in for example dry finger of special finger etc., by using the inclination light signal collection finger of angle, θ Finger print information, the fingerprint image being more clear can be obtained.
Need to illustrate when, due to the difference of refractive index, in the contact interface of display screen 120 and fingerprint identification device 500 Between the refraction of light can occur, be not shown in Fig. 8.At this moment, distance of the first area calculated relative to pressing area, May and there is no there are deviations between the d=hs/f that calculates when refraction.It is right but when deviation angle is smaller The influence of distance can be ignored, it is believed that the minor shifts of the position of first area 1212, which will not influence, adopts fingerprint image Collection.At this moment d=hs/f can be used to determine the position of first area 1212.It in actual use, can be by using suitable Material reduce this refractive index difference.In the embodiment of the present application, assume that the refringence is sufficiently small, so that will not influence The acquisition of fingerprint image.
It fits together between Fig. 6 and display screen shown in fig. 8 120 and fingerprint identification device 500.Actually answering There may be certain interval such as the air gaps etc. in, between display screen 120 and fingerprint identification device 500 passes for optical path It is defeated.For example, fingerprint identification device 500 can be fixed on the lower section of display screen 120 by mobile phone center, and with display screen 120 it Between retain certain intervals.The installation site of Fig. 6 and fingerprint identification device shown in Fig. 8 500 is only to illustrate, should not be to the application The range of embodiment causes to limit.
Fig. 9 is the schematic flow chart of the fingerprint identification method 900 of the embodiment of the present application.Method shown in Fig. 9 can be by Fingerprint identification device 500 above-mentioned executes.Fingerprint identification device 500 includes optical path guide structure 510 and image capture module 520.The fingerprint collecting region of fingerprint identification device 500 is located in display screen.Wherein, this method 900 includes:
In 910, what optical path guide structure 510 will reflect when irradiation finger from the finger out of display screen pressing area Inclination optical signal with special angle guides the sense into image capture module 520 below the first area of display screen Answer unit.
Wherein, which is located in the non-pushed region of the display screen；
In 920, image capture module 520 obtains the fingerprint image of the finger according to the collected inclination optical signal.
By the way that light source is irradiated finger in finger pressing area and handles the inclination optical signal of digital reflex, guidance to image Acquisition module, and by image capture module according to the fingerprint image of the oblique light signal acquisition finger.Since oblique light ray is in hand Refer to except the Diffusive intensity generated is lower than the Diffusive intensity of vertical light, therefore, those in fingerprint identification process are easily produced Raw irreflexive special finger, such as dry finger, can be improved the contrast of collected fingerprint image, improve fingerprint detection Energy.
The fingerprint identification device 500 of execution method 900 specifically describes the description that can refer to aforementioned device side, for letter Clean, which is not described herein again.
Optionally, this method further include: optical path guide structure 510 will irradiate anti-from the finger when finger out of pressing area The vertical optical signal penetrated guides the sensing unit being located at below pressing area into image capture module 520.Wherein, 920 In, if image capture module 520 fails according to the vertical light signal acquisition fingerprint image, according to the oblique light signal acquisition The fingerprint image.
Specifically, the sensing unit work being located at below pressing area in image capture module 520, acquisition can first be controlled The vertical optical signal reflected when irradiating finger out of pressing area from the finger.Image capture module 520 is believed according to the vertical light Number obtain fingerprint image.If the clarity for the fingerprint image that vertical light image formation obtains is poor, it is difficult in fingerprint base Fingerprint template is matched.So, then control in image capture module 520 be located at first area below sensing unit work, Acquire the inclination optical signal with special angle reflected when irradiating finger out of pressing area from the finger.Due to oblique light ray In finger except the Diffusive intensity generated is lower than the Diffusive intensity of vertical light, therefore it is imaged according to the inclination optical signal Obtained fingerprint image can be apparent.
Since the intensity of inclination optical signal is lower than the intensity of vertical optical signal, compared to vertical optical signal is acquired, scheme The longer time for exposure is needed when acquiring inclination optical signal as acquisition module 520.Just because of this, first according to vertical in the embodiment Optical signal carries out the acquisition of fingerprint image, can efficiently obtain fingerprint image.And do not getting clearly fingerprint image When, the acquisition of fingerprint image is carried out further according to inclination optical signal.To take into account the efficiency and effect of fingerprint recognition, user is improved Experience.
Optionally, the optical path guide structure 510 of the embodiment of the present application may include microlens array 511 and be arranged micro- The light blocking layer 512 of 511 lower section of lens array.
In microlens array 511, the lenticule below pressing area is used for the vertical optical signal of opponent's digital reflex It is assembled, inclination optical signal of the lenticule below the first area for the special angle of opponent's digital reflex is understood It is poly-.
Light blocking layer 512 includes multiple apertures corresponding with multiple lenticules, wherein each aperture is for being corresponded to The optical signal assembled of lenticule guide to image capture module 520.
Optionally, processing module 530 is used for: obtaining the information of the pressing area He the first area, wherein the pressing area The distance between domain and the first area are determined according to following information: display screen to the height between image capture module 520 The focal length f of the distance between adjacent apertures s and lenticule in degree, light blocking layer.
Processing module 530 can be the processing module in the equipment using the device 500, such as the master control of terminal device. Alternatively, what the processing module 530 can also be integrated with fingerprint identification device 500, as the fingerprint identification device 500 A part.
For example, processing module 530 can obtain the information and hand of the pressing area of finger on a display screen from touch screen Refer to the information in whole orientation.Clearly fingerprint image can not be obtained according to collected vertical optical signal in image capture module 520 When picture, processing module 530 calculates the distance between pressing area and first area d according to formula d=h × s/f, wherein h is For display screen to the height between image capture module 520, s is the distance between adjacent apertures in light blocking layer, and f is the coke of lenticule Away from.According to the information in the finger entirety orientation that distance d and touch screen report, so that it may calculate the position of first area.Its In, which is located in the shadow region of finger, and is d with the distance between pressing area.Preferably, the first area Area and the pressing area area equation.
For the explanation of the Computing Principle of the distance between pressing area and first area d, can with reference to it is aforementioned to Fig. 6 extremely The description of Fig. 8, for sake of simplicity, not repeating here.
Below with reference to Figure 10, a kind of specific implementation of the fingerprint identification method of the embodiment of the present application is described in detail.It should Method can be executed by terminal device, which may include aforementioned fingerprint identification device, display screen, touch screen, processing Module etc..Here by taking OLED display screen as an example.As shown in Figure 10, this method comprises:
Step 1001, fingerprint recognition starts.
Finger executes pressing operation in the fingerprint collecting region in display screen.
Step 1002, the integral position of the pressing area of touch screen detection finger and finger.
Touch screen obtains the pressing area of finger and the integral position of finger, can be determined based on the integral position of finger The shadow region of finger.
Step 1003, the luminescence unit being located in display screen in pressing area shines.
It is located at the excitation light source that the luminescence unit in fingerprint collecting region is fingerprint recognition in display screen.But step In 1003, only the luminescence unit in pressing area shines in display screen, so that finger is only illuminated in pressing area.
It wherein, include vertical optical signal and the inclination optical signal with special angle in the optical signal of finger reflection.
Step 1004, image capture module is with the vertical optical signal of standard exposure time acquisition finger reflection.
At this moment, the sensing unit work being located in image capture module below pressing area, to acquire hanging down for finger reflection Collimated optical signal, and fingerprint image of the finger in pressing area is obtained based on the vertical optical signal.
Step 1005, processing module judges whether the fingerprint image is clear.
If the clarity of the fingerprint image is unsatisfactory for requiring, 1006 are thened follow the steps；If the fingerprint image is clear Degree is met the requirements, and thens follow the steps 1007.
Step 1006, image capture module is with the oblique light letter with special angle of acquisition of long time for exposure finger reflection Number.
At this moment, the sensing unit work being located in image capture module below first area, to acquire inclining for finger reflection Skew ray signal, and fingerprint image of the finger in pressing area is obtained based on the inclination optical signal.
Wherein, the position of first area can by processing module according to the position of pressing area, shadow region position, with And the distance between pressing area and first area determine.The distance between pressing area and first area for example can bases D=h × s/f is determined.After processing module obtains the position of first area, it can control and be located at the firstth area in image capture module Sensing unit below domain is opened, to carry out the acquisition of inclination optical signal.
Step 1007, processing module carries out fingerprint image matching.
Processing module is by fingerprint image of the finger in pressing area and the finger print information of preparatory typing according to fingerprint algorithm It is matched.
Step 1008, processing module judges whether successful match.
If successful match thens follow the steps 1009；Step 1010 is executed if it fails to match.
Step 1009, pass through finger print identifying.
Step 1010, finger print identifying fails.
Such as user can be prompted to reattempt to or denied access.
Since fingerprint identification device has the fingerprint collecting region of large area, thus, finger is located in fingerprint identification device Shadow region below part can be realized the inclination optical signal of opponent's digital reflex and be acquired, and borrow finger in fingerprint The shade formed above pickup area reduces interference of the ambient light to the inclination optical signal, to improve fingerprint identification device Performance, increase user experience.
The embodiment of the present application also provides a kind of electronic equipment, Figure 11 is showing for the electronic equipment 1100 of the embodiment of the present application Meaning property block diagram.The electronic equipment 1100 includes touch screen 1110, display screen 1120, fingerprint identification device 1130 and processing mould Block 1140.
The fingerprint identification device 1130 can be fingerprint identification device described in the application any embodiment.
The display screen can be using the display screen in above description, such as OLED display screen.The OLED display screen shines Layer includes multiple luminescence units, and wherein the fingerprint identification device 1130 is using at least partially luminescent unit as the sharp of fingerprint recognition Encourage light source.
Processing module 1140 exists between touch screen 1110, display screen 1120 and fingerprint identification device 1130 respectively to be communicated Connection, to execute the transmission of data and instruction.
This four parts of touch screen 1110, display screen 1120, fingerprint identification device 1130 and processing module 1140 can The common fingerprint identification method completed in the embodiment of the present application.
For example, step 1002 is mainly executed by touch screen 1110 and processing module 1140 by taking Figure 10 as an example；Step 1003 is main It to be executed by display screen 1120 and processing module 1140；Remaining step is mainly by fingerprint identification device 1130 and processing module 1140 It executes.
It is non-limiting as example, the electronic equipment can for terminal device, mobile phone, tablet computer, laptop, The portable or mobiles such as desktop computer, game station, vehicle electronic device or wearable intelligent equipment calculate equipment, Yi Ji electricity Other electronic equipments such as subdata base, automobile, ATM (automatic teller machine) (Automated Teller Machine, ATM).This is worn The formula smart machine of wearing, which includes that function is complete, size is big, can not depend on smart phone, realizes complete or partial function, such as: intelligence Wrist-watch or intelligent glasses etc., and only it is absorbed in certain a kind of application function, it needs to be used cooperatively with other equipment such as smart phone, The Intelligent bracelet of such as all kinds of carry out sign monitorings, intelligent jewellery equipment.
It should be understood that the specific example in the embodiment of the present application is intended merely to that those skilled in the art is helped to more fully understand The embodiment of the present application, rather than the range of the embodiment of the present application is limited, those skilled in the art can be on the basis of above-described embodiment It is upper to carry out various improvement and deformations, and these are improved or deformation is all fallen in the protection scope of the application.

Claims (21)

1. a kind of fingerprint identification device characterized by comprising
Optical path guide structure is arranged below display screen, from described when for will irradiate finger out of display screen pressing area The inclination optical signal with special angle of finger reflection guides the firstth area for being located at the display screen into image capture module Sensing unit below domain, the first area are located in the non-pushed region of the display screen；
Described image acquisition module is arranged below the optical path guide structure, for obtaining institute according to the inclination optical signal State the fingerprint image of finger.
2. the apparatus according to claim 1, which is characterized in that the optical path guide structure is also used to:
The vertical optical signal that will be reflected when irradiating finger out of described pressing area from the finger, guidance to described image acquire The sensing unit being located at below the pressing area in module；
Wherein, described image acquisition module is specifically used for:
If being failed according to fingerprint image described in the vertical light signal acquisition, according to fingerprint described in the oblique light signal acquisition Image.
3. the apparatus of claim 2, which is characterized in that described image acquisition module acquires inclination optical signal institute The time for exposure used is greater than and acquires the time for exposure used in the vertical optical signal.
4. device according to any one of claim 1 to 3, which is characterized in that the optical path guide structure includes:
Microlens array, wherein the lenticule below the pressing area is used to assemble the vertical optical signal, Lenticule below the first area is for assembling the inclination optical signal；
Light blocking layer is arranged below the microlens array, and the light blocking layer includes corresponding with multiple lenticules multiple Aperture, wherein each aperture is for guiding the optical signal that its corresponding lenticule is assembled to described image acquisition module.
5. device according to claim 4, which is characterized in that described device further includes processing module, the processing module For:
Obtain the information of the pressing area and the first area, wherein between the pressing area and the first area Distance be to be determined according to following information:
The display screen to the height between described image acquisition module, the distance between adjacent apertures in the light blocking layer, with And the focal length of lenticule.
6. device according to claim 5, which is characterized in that the distance between the pressing area and the first area For d, d=h × s/f, wherein h is the display screen to the height between described image acquisition module, and s is in the light blocking layer The distance between adjacent apertures, f are the focal length of lenticule.
7. device according to any one of claim 1 to 6, which is characterized in that the first area is located at described non-press In the shadow region for being covered and do not contacted with the finger by the finger in intermediate pressure section.
8. device according to any one of claim 1 to 7, which is characterized in that the area of the first area with it is described The area equation of pressing area.
9. device according to any one of claim 1 to 8, which is characterized in that described image acquisition module is by multiple light Fingerprint sensor is learned to be spliced to form.
10. device according to any one of claim 1 to 8, which is characterized in that described image acquisition module includes one Optical fingerprint sensor.
11. a kind of fingerprint identification method, which is characterized in that the method is executed by fingerprint identification device, described device include according to The secondary optical path guide structure and image capture module being arranged in below display screen, which comprises
The optical path guide structure will have when irradiating finger out of the display screen pressing area from what the finger reflected The inclination optical signal of special angle guides the sense into described image acquisition module below the first area of the display screen Unit is answered, the first area is located in the non-pushed region of the display screen；
Described image acquisition module obtains the fingerprint image of the finger according to the inclination optical signal.
12. according to the method for claim 11, which is characterized in that the method also includes:
The vertical optical signal that the optical path guidance knot will reflect when irradiating finger out of described pressing area from the finger, guidance The sensing unit being located at below the pressing area into described image acquisition module；
Wherein, described image acquisition module obtains the fingerprint image of the finger according to the inclination optical signal, comprising:
If described image acquisition module fingerprint image according to the vertical light signal acquisition fails, according to the oblique light Fingerprint image described in signal acquisition.
13. method according to claim 11 or 12, which is characterized in that described image acquisition module acquires the oblique light Time for exposure used in signal is greater than and acquires the time for exposure used in the vertical optical signal.
14. method described in any one of 1 to 13 according to claim 1, which is characterized in that the optical path guide structure includes:
Microlens array, wherein the lenticule below the pressing area is used to assemble the vertical optical signal, Lenticule below the first area is for assembling the inclination optical signal；
Light blocking layer is arranged below the microlens array, and the light blocking layer includes corresponding with multiple lenticules multiple Aperture, wherein each aperture is for guiding the optical signal that its corresponding lenticule is assembled to described image acquisition module.
15. according to the method for claim 14, which is characterized in that the fingerprint identification device further includes processing module, institute Processing module is stated to be used for:
Obtain the information of the pressing area and the first area, wherein between the pressing area and the first area Distance be to be determined according to following information:
The display screen to the height between described image acquisition module, the distance between adjacent apertures in the light blocking layer, with And the focal length of lenticule.
16. according to the method for claim 15, which is characterized in that between the pressing area and the first area away from From for d, d=h × s/f, wherein h is the display screen to the height between described image acquisition module, and s is the light blocking layer The distance between middle adjacent apertures, f are the focal length of lenticule.
17. method described in any one of 1 to 16 according to claim 1, which is characterized in that the first area is located at described non- In the shadow region for being covered and do not contacted with the finger by the finger in pressing area.
18. method described in any one of 1 to 17 according to claim 1, which is characterized in that the area of the first area and institute State the area equation of pressing area.
19. method described in any one of 1 to 18 according to claim 1, which is characterized in that described image acquisition module is by multiple Optical fingerprint sensor is spliced to form.
20. method described in any one of 1 to 18 according to claim 1, which is characterized in that described image acquisition module includes one A optical fingerprint sensor.
21. a kind of electronic equipment, which is characterized in that including display screen and according to any one of claim 1 to 10 Fingerprint identification device.
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WO2021036102A1 (en) * 2019-08-23 2021-03-04 深圳市汇顶科技股份有限公司 Fingerprint identification apparatus and electronic device
WO2021056392A1 (en) * 2019-09-27 2021-04-01 深圳市汇顶科技股份有限公司 Optical fingerprint apparatus, electronic device, and method for measuring distance
CN114283456A (en) * 2020-07-03 2022-04-05 北京极豪科技有限公司 Fingerprint identification module, display device, electronic equipment and fingerprint identification method
WO2022099562A1 (en) * 2020-11-12 2022-05-19 深圳市汇顶科技股份有限公司 Fingerprint recognition apparatus and electronic device
US11423690B2 (en) 2018-12-13 2022-08-23 Shenzhen GOODIX Technology Co., Ltd. Fingerprint identification apparatus and electronic device
US11531430B2 (en) 2019-07-12 2022-12-20 Shenzhen GOODIX Technology Co., Ltd. Fingerprint detection apparatus and electronic device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112307951B (en) * 2020-10-29 2023-04-07 云谷（固安）科技有限公司 Display device
CN114422729B (en) * 2021-12-23 2024-09-17 北京集创北方科技股份有限公司 Image sensor, image acquisition system and image acquisition method

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7274808B2 (en) * 2003-04-18 2007-09-25 Avago Technologies Ecbu Ip (Singapore)Pte Ltd Imaging system and apparatus for combining finger recognition and finger navigation
US9298317B2 (en) * 2012-12-19 2016-03-29 J-Metrics Technology Co., Ltd. Stray-light-coupled biometrics sensing module and electronic apparatus using the same
TWI545335B (en) * 2013-05-28 2016-08-11 原相科技股份有限公司 Optical apparatus and light sensitive device with micro-lens
CN107122723A (en) * 2017-04-18 2017-09-01 京东方科技集团股份有限公司 Fingerprint Identification sensor, fingerprint identification method and electronic equipment
CN206470775U (en) * 2016-12-23 2017-09-05 敦捷光电股份有限公司 Biometric recognition device.It
CN108009533A (en) * 2018-01-04 2018-05-08 敦捷光电股份有限公司 Optical fingerprint identification system
CN108182424A (en) * 2018-01-29 2018-06-19 上海天马微电子有限公司 Display device and fingerprint identification method thereof
CN108446677A (en) * 2018-05-03 2018-08-24 东莞市美光达光学科技有限公司 A kind of fingerprint recognition module for below screen
TWM571523U (en) * 2018-12-11 Optical recognition module
CN109074492A (en) * 2018-08-06 2018-12-21 深圳市汇顶科技股份有限公司 Shield lower optical fingerprint identification device and electronic equipment
CN109154959A (en) * 2017-05-17 2019-01-04 深圳市汇顶科技股份有限公司 Optical fingerprint sensor with non-contact imaging capability
CN109416737A (en) * 2018-09-21 2019-03-01 深圳市汇顶科技股份有限公司 Fingerprint identification device and electronic equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180349673A1 (en) * 2015-12-11 2018-12-06 Gingy Technology Inc. Fingerprint identification module
KR20160048643A (en) * 2014-10-24 2016-05-04 주식회사 비욘드아이즈 Image sensor for finger-print
CN105184248B (en) * 2015-08-28 2019-03-12 京东方科技集团股份有限公司 A kind of fingerprint identification device and fingerprint recognition system
CN109313703B (en) * 2018-08-15 2022-02-08 深圳市汇顶科技股份有限公司 Optical fingerprint identification system under screen, backlight module, display screen and electronic equipment

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM571523U (en) * 2018-12-11 Optical recognition module
US7274808B2 (en) * 2003-04-18 2007-09-25 Avago Technologies Ecbu Ip (Singapore)Pte Ltd Imaging system and apparatus for combining finger recognition and finger navigation
US9298317B2 (en) * 2012-12-19 2016-03-29 J-Metrics Technology Co., Ltd. Stray-light-coupled biometrics sensing module and electronic apparatus using the same
TWI545335B (en) * 2013-05-28 2016-08-11 原相科技股份有限公司 Optical apparatus and light sensitive device with micro-lens
CN206470775U (en) * 2016-12-23 2017-09-05 敦捷光电股份有限公司 Biometric recognition device.It
CN107122723A (en) * 2017-04-18 2017-09-01 京东方科技集团股份有限公司 Fingerprint Identification sensor, fingerprint identification method and electronic equipment
CN109154959A (en) * 2017-05-17 2019-01-04 深圳市汇顶科技股份有限公司 Optical fingerprint sensor with non-contact imaging capability
CN108009533A (en) * 2018-01-04 2018-05-08 敦捷光电股份有限公司 Optical fingerprint identification system
CN108182424A (en) * 2018-01-29 2018-06-19 上海天马微电子有限公司 Display device and fingerprint identification method thereof
CN108446677A (en) * 2018-05-03 2018-08-24 东莞市美光达光学科技有限公司 A kind of fingerprint recognition module for below screen
CN109074492A (en) * 2018-08-06 2018-12-21 深圳市汇顶科技股份有限公司 Shield lower optical fingerprint identification device and electronic equipment
CN109416737A (en) * 2018-09-21 2019-03-01 深圳市汇顶科技股份有限公司 Fingerprint identification device and electronic equipment

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11475706B2 (en) 2018-12-13 2022-10-18 Shenzhen GOODIX Technology Co., Ltd. Fingerprint identification device, method and electronic device
US11423690B2 (en) 2018-12-13 2022-08-23 Shenzhen GOODIX Technology Co., Ltd. Fingerprint identification apparatus and electronic device
US11531430B2 (en) 2019-07-12 2022-12-20 Shenzhen GOODIX Technology Co., Ltd. Fingerprint detection apparatus and electronic device
CN111133442A (en) * 2019-08-06 2020-05-08 深圳市汇顶科技股份有限公司 Fingerprint detection device and electronic equipment
CN111133442B (en) * 2019-08-06 2023-08-22 深圳市汇顶科技股份有限公司 Fingerprint detection device and electronic equipment
CN111108509B (en) * 2019-08-08 2023-09-08 深圳市汇顶科技股份有限公司 Fingerprint detection device and electronic equipment
CN111095287A (en) * 2019-08-08 2020-05-01 深圳市汇顶科技股份有限公司 Optical fingerprint device and electronic equipment
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CN111108509A (en) * 2019-08-08 2020-05-05 深圳市汇顶科技股份有限公司 Fingerprint detection device and electronic equipment
WO2021022560A1 (en) * 2019-08-08 2021-02-11 深圳市汇顶科技股份有限公司 Fingerprint detection apparatus and electronic device
WO2021036102A1 (en) * 2019-08-23 2021-03-04 深圳市汇顶科技股份有限公司 Fingerprint identification apparatus and electronic device
CN111133445B (en) * 2019-08-23 2021-09-24 深圳市汇顶科技股份有限公司 Fingerprint identification device and electronic equipment
CN111328398A (en) * 2019-08-23 2020-06-23 深圳市汇顶科技股份有限公司 Fingerprint identification device and electronic equipment
CN111095284B (en) * 2019-08-23 2023-09-22 深圳市汇顶科技股份有限公司 Fingerprint detection device, fingerprint detection method and electronic equipment
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US11417143B2 (en) 2019-08-23 2022-08-16 Shenzhen GOODIX Technology Co., Ltd. Fingerprint detection apparatus and method and electronic device
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WO2021035451A1 (en) * 2019-08-23 2021-03-04 深圳市汇顶科技股份有限公司 Fingerprint detection apparatus and method, and electronic device
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