CN209543384U - The device and electronic equipment of fingerprint recognition - Google Patents
The device and electronic equipment of fingerprint recognition Download PDFInfo
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- CN209543384U CN209543384U CN201920395088.XU CN201920395088U CN209543384U CN 209543384 U CN209543384 U CN 209543384U CN 201920395088 U CN201920395088 U CN 201920395088U CN 209543384 U CN209543384 U CN 209543384U
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Abstract
A kind of device and electronic equipment of fingerprint recognition can prevent sagging, the raising optical finger print recognition performance of flexible display screen caused by finger pressing in fingerprint identification process.The device of the fingerprint recognition includes: support construction and optical finger print identification mould group；The support construction is set to below the flexible display screen, is used to support the flexible display screen；Wherein, the support construction is provided with multiple light passing apertures, and the multiple light passing aperture is used to fingerprint optical signal transmission to the optical finger print for reflecting via the human finger above the flexible display screen or scattering and returning identifying mould group；The optical finger print identification mould group is set to below the multiple light passing aperture, for receiving the fingerprint optical signal, wherein the fingerprint optical signal is used to detect the finger print information of the finger.
Description
Technical field
This application involves optical finger print technical fields, and more particularly, to the device and electronics of a kind of fingerprint recognition
Equipment.
Background technique
In Organic Light Emitting Diode (organic light emitting diode, OLED) display screen, screen base
Flexible screen is known as using the screen of the flexible materials such as plastics or metal, wherein flexible screen includes Curved screen and foldable flexible
Shield two kinds of product form.The screen of Curved screen is fixed in process of production bends to certain shape, and cover board, which uses, has support
The glass of effect, therefore " flexibility " feature is not had plus the finished product Curved screen after glass cover-plate.And foldable flexible screen
Cover board uses flexible clear materials, in addition the finished product foldable flexible screen after flexible cover plate is still that can be bent deformation.
But in foldable flexible screen, since its own does not have support force, support construction is needed to carry out screen whole
Support, preventing screen, deformation occurs in user's use process.Existing optical finger print identifying schemes are by fingerprint identification region
Midframe part all hollow out, due to being supported without center to screen at fingerprint identification region, finger, which presses the fingerprint, to be known
When other region, can make causes screen to collapse, and causes the screen at fingerprint identification region to show and shows meeting with the screen in other regions
There is apparent difference, influences user experience.Simultaneously as in use process fingerprint identification region screen deformation, influence by
The transmitting of the fingerprint optical signal of finger reflection also results in optical finger print recognition performance variation.
Therefore, sinking for flexible display screen caused by finger presses in fingerprint identification process how is solved, and improves its light
Learn the problem of fingerprint recognition performance is a urgent need to resolve.
Utility model content
The embodiment of the present application provides the device and electronic equipment of a kind of fingerprint recognition, is able to solve in fingerprint identification process
Flexible display screen caused by finger presses sink, and improves its optical finger print recognition performance.
In a first aspect, a kind of device of fingerprint recognition is provided, suitable for the electronic equipment with flexible display screen, packet
It includes: support construction and optical finger print identification mould group；
The support construction is set to below the flexible display screen, is used to support the flexible display screen；
Wherein, the support construction is provided with multiple light passing apertures, and the multiple light passing aperture is used for will be via described soft
Property display screen above human finger reflection or scattering and return fingerprint optical signal transmission to the optical finger print identify mould group；
The optical finger print identification mould group is set to below the multiple light passing aperture, for receiving the fingerprint light letter
Number, wherein the fingerprint optical signal is used to detect the finger print information of the finger.
The technical solution of the embodiment of the present application, by the way that support construction is arranged under flexible display screen, in the support construction
The upper multiple light passing apertures of setting can either meet the fingerprint light of the human finger reflection or scattering and return above via display screen
The transmission of signal, and support can be provided for the flexible display screen of fingerprint pressing area, reduce the shadow that pressing shows screen
It rings, and then improves the quality of fingerprint detection.
In one possible implementation, the support construction is the center of the electronic equipment.
In one possible implementation, opening area is set in the support construction, is arranged on the opening area
There are multiple light passing apertures.
In one possible implementation, the upper surface of the support construction in the same plane, the support construction
Lower surface be formed with step structure in the fringe region of the opening area.
In one possible implementation, the multiple light passing aperture is used for transmission specific angle in the fingerprint optical signal
Fingerprint optical signal is spent, and stops nonspecific angle fingerprint optical signal in the fingerprint optical signal.
In one possible implementation, the optical finger print identification mould group includes multiple pixel units, the multiple
Pixel unit is for receiving the special angle fingerprint optical signal.
In one possible implementation, the special angle fingerprint optical signal is perpendicular to the multiple light passing aperture
Incident fingerprint optical signal.
In one possible implementation, the aspect ratio of the multiple light passing aperture is greater than 10.
In one possible implementation, in the multiple light passing aperture two light passing apertures of arbitrary neighborhood center
Distance is less than 1/2 λmin, wherein λminFor the minimum value of fingerprint period.
In one possible implementation, the optical finger print identification mould group includes optical lens assembly, the optics
Lens assembly includes at least one optical lens.
In one possible implementation, the field angle of each light passing aperture in the multiple light passing aperture is greater than institute
State the field angle of optical lens assembly.
In one possible implementation, in the multiple light passing aperture the light passing aperture of arbitrary neighborhood centre distance
Greater than 2 λmax, wherein λmaxFor the maximum value of fingerprint period.
In one possible implementation, the multiple light passing aperture is the identical circular aperture of size or polygon
Aperture.
In one possible implementation, the multiple light passing aperture is alternatively arranged with ad hoc rules.
In one possible implementation, the arrangement mode of the multiple light passing aperture is cross arrangement, matrix arrangement
It is any one or more of with random alignment.
In one possible implementation, described device further include: transparent flexible glue layer, for connecting the Flexible Displays
Screen and the support construction.
In one possible implementation, the transparent flexible glue layer extends in the multiple light passing aperture.
In one possible implementation, described device further include: fixation kit, for the optical finger print to be identified
Mould group is fixed in the support construction.
In one possible implementation, the opening area is set to below the fingerprint detection region；
The optical finger print identification mould group is specifically used for receiving the fingerprint optical signal in the fingerprint detection region.
In one possible implementation, the equal position in center at the center of the opening area and the fingerprint detection region
In on the same vertical line perpendicular to optical finger print identification mould group.
Second aspect provides a kind of electronic equipment, comprising: times of flexible display screen and first aspect or first aspect
The device for the fingerprint recognition anticipated in possible implementation, wherein the device of the fingerprint recognition is set to the Flexible Displays
Screen lower section.
In one possible implementation, the device of the fingerprint recognition is set to the non-bending of the flexible display screen
Below area.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the electronic equipment that the embodiment of the present application is applicable in.
Fig. 2 is the partial structural diagram according to the electronic equipment of the embodiment of the present application.
Fig. 3 is the schematic diagram according to the device of the fingerprint recognition of the embodiment of the present application.
Fig. 4 is the schematic diagram according to the device of another fingerprint recognition of the embodiment of the present application.
Fig. 5 is the schematic figure according to the arrangement mode of the light passing aperture of the embodiment of the present application.
Fig. 6 is the schematic diagram according to the device of another fingerprint recognition of the embodiment of the present application.
Fig. 7 is the schematic diagram according to the device of another fingerprint recognition of the embodiment of the present application.
Fig. 8 is the schematic diagram according to the device of another fingerprint recognition of the embodiment of the present application.
Fig. 9 is the schematic diagram according to the device of another fingerprint recognition of the embodiment of the present application.
Figure 10 is the schematic block diagram according to the electronic equipment of the embodiment of the present application.
Figure 11 is the schematic perspective view according to the electronic equipment of the embodiment of the present application.
Specific embodiment
As intelligent terminal steps into the flexible display screen epoch, the screen of electronic equipment is no longer limited to plane and shows, and court
The direction of " bent (Bendable) ", " foldable (Foldable) " and " flexible (Rollable) " develop, it is bent
The flexible display screen of state can be bent by fixed angle；And foldable and flexible flexible display screen can be in a face
Be arbitrarily bent on arbitrary face.Since flexible display screen has the above characteristic, thus have more the electronic equipment of flexible display screen
There are aesthetics and portability, there is vast application prospect.At the same time, with the development of biological identification technology, bio-identification
The especially application of fingerprint recognition on an electronic device is also more and more extensive, therefore how on the electronic equipment with flexible screen
Realize that high performance fingerprint recognition has become needed for masses.
The application provides a kind of device technique scheme of fingerprint recognition suitable for flexible display screen, as a kind of common
Application scenarios, the technical solution of the embodiment of the present application can be applied in smart phone, tablet computer, wearable device and other tools
The mobile terminal of flexible display screen or other electronic equipments.And the technical solution of the embodiment of the present application can be used for biological spy
Levy identification technology.Wherein, biometrics identification technology includes but is not limited to fingerprint recognition, personal recognition, iris recognition, face knowledge
The identification technologies such as other and vivo identification.For ease of description, it is hereafter illustrated by taking fingerprint identification technology as an example.
It include optical finger print device, the fingerprint in the fingerprint recognition system of the embodiment of the present application in above-mentioned electronic equipment
Regional area or whole region below flexible display screen can be set in the device of identification, to form (Under- under screen
Display) optical fingerprint systems.
Below in conjunction with attached drawing, technical solutions in the embodiments of the present application is described.
The structural schematic diagram for the electronic equipment that can be applicable in for the embodiment of the present application as shown in Figure 1, the electronic equipment 10
Device 130 and center 140 including flexible display screen 120, fingerprint recognition, wherein flexible display screen 120 is specially flexibility can
Folding display screen or flexible display screen, substrate and cover board are all made of flexible material, for example, substrate uses plastics
Or flexible metal, cover board use transparent inorganic thin film material.Center 140 is used to support the flexible display screen 120, prevents institute
It states flexible display screen and generates deformation when users use.Window 141, the dress of the fingerprint recognition are provided on the center 140
130 settings are set in 141 lower zone of window.
In the embodiment of the present application, the device 130 of the fingerprint recognition includes optical fingerprint sensor, the optical finger print
Sensor includes the induction arrays 133 with multiple optical sensor units 131,133 region of induction arrays or its
Induction region is the fingerprint detection region 103 of the device 130 of the fingerprint recognition.Fingerprint monitoring 103 part of region or
It is entirely located in the region of 141 lower section of window.Optionally, the fingerprint detection region 103 is located at the flexible display screen
Among 120 display area.
As a kind of optional embodiment, the flexible display screen 120 can have spontaneous light display unit to use
Flexible display screen, such as flexible Organic Light Emitting Diode (flexible organic light emitting diode,
FOLED) display screen.The device 130 of the fingerprint recognition can use the FOLED display screen 120 and be located at the fingerprint detection
The excitation light source that the display unit (i.e. OLED light source) in region 103 detects as optical finger print.When finger 110 is pressed described
When fingerprint detection region 103, display screen 120 issues light beam to the target finger 110 of 103 top of fingerprint detection region
111, which reflects to form reflected light on the surface of finger 110 or is formed by 110 scattering-in of finger
Light is scattered, in the related patent applications, for ease of description, above-mentioned reflected light and scattering light are referred to as reflected light.Due to fingerprint
Ridge (ridge) and valley (valley) are different for the albedo of light, therefore, reflected light 151 from fingerprint ridge 101 and come from
The reflected light 152 in fingerprint valley 102 has different light intensity, and reflected light is after optical module, by the device 130 of fingerprint recognition
Induction arrays 134 be received and converted to corresponding electric signal, i.e. fingerprint detection signal；Just based on the fingerprint detection signal
Fingerprint image data can be obtained, and can be verified with further progress fingerprint matching, to be realized in the electronic equipment 10
Optical finger print identification function.
In other embodiments, the flexible display screen 120 can be for using the flexibility without spontaneous light display unit
Display screen, such as flexible liquid crystal display (flexible liquid crystal display, FLCD) display screen.To support
Fingerprint detection under the screen of liquid crystal display, the optical fingerprint systems of the electronic equipment 10 can also include examining for optical finger print
The excitation light source of survey, the excitation light source can be specially the light source of infrared light supply or specific wavelength non-visible light, can be with
It is arranged in below the backlight module of the liquid crystal display or is arranged in the side below the cover sheet of the electronic equipment 10
Edge region, and the device 130 of the fingerprint recognition can be set below the fringe region of liquid crystal display panel or cover sheet and lead to
Optical path guidance is crossed so that fingerprint detection light can reach the device 130 of the fingerprint recognition；Alternatively, the dress of the fingerprint recognition
Setting 130 also can be set below the backlight module, and the backlight module passes through to diffusion sheet, blast piece, reflector plate etc.
Film layer carries out aperture or other optical designs to allow fingerprint detection light to pass through described in liquid crystal display panel and backlight module and arrival
The device 130 of fingerprint recognition.When the device 130 of the use fingerprint recognition provides use using built-in light source or external light source
When carrying out the optical signal of fingerprint detection, testing principle is consistent with content is described above.
It should also be understood that in the embodiment of the present application, the induction arrays in the device of fingerprint recognition are referred to as pixel battle array
It arranges, the optical sensor unit or sensing unit in induction arrays are alternatively referred to as pixel unit.
It should be noted that the device of the fingerprint recognition in the embodiment of the present application is referred to as optical finger print identification mould
Group, fingerprint recognition mould group, fingerprint mould group, fingerprint acquisition device etc., above-mentioned term can be replaced mutually.
When in the display area that the fingerprint detection region 103 is located at the flexible display screen 120, due to the fingerprint
Support without center 140 between the device 130 and the flexible display screen 120 of identification, there are certain the air gaps.In this Shen
It please be in a kind of possible implementation of embodiment, for example, the window 141 is examined with the fingerprint as shown in (a) in Fig. 2
The shape size for surveying region 103 is identical, and is set to the surface in the fingerprint detection region 103, is empty in the window 141
Gas.When fingerprint detection region 103 of the user's finger on the flexible display screen 120 presses, flexible display screen 120 is being pressed
Region collapses, and shows so that the image of finger pressing area on flexible display screen 120 be made to show with the image in other regions
Difference influences user experience.
In the alternatively possible implementation of the embodiment of the present application, for example, as shown in (b) in Fig. 2, the window
141 are set to the top in the fingerprint detection region 103, transparent 142 are filled in the window 141, such as thoroughly
Bright glass or resin etc..In technique preparation process, since can not prepare simultaneously in center 140 and window 141 transparent fills out
Material 142 is filled, therefore, it is necessary to reduce the difference in height of center 140 and transparent filling material 142 to technological parameter strict control.If
When the upper surface of the transparent filling material 142 is higher than the upper surface of the center 140, there is " drum in the screen of 141 top of window
Packet " phenomenon, the image for influencing flexible display screen 120 is shown and the service life.
Based on this, the application provides the device and electronic equipment of a kind of fingerprint recognition, and support is arranged under flexible display screen
Multiple light passing apertures are arranged in structure in the support construction, can either meet the optical signal transmission of fingerprint detection, improve fingerprint
The quality of detection, and support can be provided for the flexible display screen in fingerprint detection region, reduce the shadow that pressing shows screen
It rings.
Hereinafter, the device of the fingerprint recognition of the embodiment of the present application is discussed in detail in conjunction with Fig. 3 to Fig. 9.
It should be noted that for ease of understanding, in embodiments illustrated below, identical structure uses identical attached drawing
Label, and for sake of simplicity, omit to mutually isostructural detailed description.
Fig. 3 is a kind of schematic diagram of the device 20 of fingerprint recognition provided by the embodiments of the present application, suitable for having
The electronic equipment of flexible display screen.
As shown in figure 3, the device 20 of the fingerprint recognition may include: support construction 200 and optical finger print identification mould group
300；
The support construction 200 is set to 120 lower section of flexible display screen, is used to support the flexible display screen 120；
Wherein, the support construction 200 is provided with multiple light passing apertures 210, and the multiple light passing aperture 210 is for will be through
Fingerprint optical signal transmission to the optical finger print returned by the human finger reflection or scattering above the display screen identifies
Mould group 300；
The optical finger print identification mould group 300 is set to the multiple 210 lower section of light passing aperture, for receiving the fingerprint
Optical signal, wherein the fingerprint optical signal is used to detect the finger print information of the finger.
Optionally, the support construction 200 can be the center 140 in Fig. 1.
Optionally, the support construction 200 can also be the supporting layer for having sufficient intensity, to realize to flexible display screen
120 support and protective effect.For example, the support construction 200 is laminar steel disc, the steel disc is set to described soft
Property display screen below, the area of the steel disc is more than or equal to the display area of the flexible display screen, and the steel disc can be complete
Support whole display areas of the flexible display screen 120.
It should be understood that the support construction 200 can be the composition of any material with supporting role, the embodiment of the present application
It does not limit this.
Optionally, opening area 201 is set in the support construction 200, and the opening area 201 is provided with multiple light passings
Aperture 210, the opening area 201 are polygon or circle.
Optionally, in the same plane, the lower surface of the support construction 200 exists for the upper surface of the support construction 200
The fringe region of the opening area 201 extends to form step structure.
Optionally, the lower surface of the support construction 200 upwardly extends to be formed in the fringe region of the opening area 201
Groove structure.For example, the support construction 200 is center, and the upper surface of the center is same flat as shown in (a) in Fig. 4
On face, the edge of the flexible display screen 120 being used to support above center, center lower surface opening area 201 is upwardly formed
Groove structure, so that thickness of the support construction 200 at the opening area 201 is less than the thickness in other regions, it is described
Support construction 200 is higher than the lower surface in other regions in the lower surface of the opening area 201.In these cases, same
Under process conditions, the aspect ratio of the light passing aperture on the opening area can reduce, increase the received fingerprint light of light passing aperture
Signal.
Optionally, the lower surface of the support construction 200 is downwardly extending in the fringe region of the opening area 201
Bulge-structure.For example, the support construction 200 is center, and the upper surface of the center is same flat as shown in (b) in Fig. 4
On face, the edge of the flexible display screen 120 being used to support above center, center lower surface opening area 201 is formed down
Bulge-structure, so that thickness of the support construction 200 at the opening area 201 is greater than the thickness in other regions, it is described
Support construction 200 is lower than the lower surface in other regions in the lower surface of the opening area 201.In these cases, same
Under process conditions, the aspect ratio of the light passing aperture on the opening area can be increased, enhance the light selectivity of light passing aperture.
Optionally, the multiple light passing aperture 210 is circular aperture or polygonal hole.
Optionally, the shape size of the multiple light passing aperture 210 can be identical.It should be understood that the multiple light passing aperture
210 shape size can also be different, and the embodiment of the present application does not limit this.
Optionally, the multiple light passing aperture 210 is alternatively arranged with ad hoc rules.It is protected between adjacent light passing aperture 210
Certain interval is held to provide a supporting role.
Optionally, the arrangement mode of the multiple light passing aperture 210 is in cross arrangement, matrix arrangement and random alignment
It is any one or more.
For example, as a kind of possible embodiment, as shown in (a) in Fig. 5, the multiple circle light passing aperture 210
It is the identical circular aperture of shape size, the multiple circular aperture is arranged in a matrix, wherein logical per two adjacent circles
The small pitch of holes of light is identical.
Optionally, as a kind of possible embodiment, as shown in (b) in Fig. 5, the multiple circle light passing aperture
210 be the identical circular aperture of shape size, the multiple circle light passing hole separation cross arrangement, wherein per adjacent two
The small pitch of holes of a circle light passing is identical.
Optionally, as a kind of possible embodiment, as shown in (c) in Fig. 5, the multiple circle light passing aperture
210 be the identical square aperture of shape size, and the multiple rectangular light passing aperture is arranged in a matrix, wherein per adjacent two
The small pitch of holes of a circle light passing is identical.
Optionally, as a kind of possible embodiment, as shown in (d) in Fig. 5, the multiple circle light passing aperture
210 be the identical regular hexagon aperture of shape size, and the multiple regular hexagon light passing hole separation cross arrangement, wherein
It is identical per two adjacent small pitchs of holes of regular hexagon light passing.
It is alternatively possible to be prepared using micro-nano technology technique or nanoimprinting process on the opening area 201
Multiple light passing apertures 210 specifically using micro-nano technology technique, carry out the photoetching of aperture figure in the support construction, will be small
Support construction material at hole pattern performs etching, and makes to form multiple light passing apertures.
In the embodiment of the present application, the region of multiple light passing apertures 210 is photosensitive region on the opening area 201, is used
Mould group 300 is identified in transmitting the fingerprint optical signal to the optical finger print, removes multiple light passing apertures on the opening area 201
Region except 210 is non-photo-sensing region, cannot transmit the fingerprint optical signal.It should be understood that the photosensitive region area with
The area ratio of the opening area is bigger, and the light intensity for being transferred to the fingerprint optical signal of the light detection array 320 is bigger.
Optionally, as shown in fig. 6, in the embodiment of the present application, the optical finger print identification mould group 300 may include light inspection
Array 320 is surveyed, the light detection array 320 includes the pixel array 322 of multiple pixel units 321, the multiple pixel unit
321 pixel array 322 can be the induction arrays 133 of multiple optical sensor units 131 in Fig. 1.The pixel array 322
And the reading circuit and other auxiliary circuits being electrically connected with the pixel array, it can be made by semiconductor technology
On a chip (Die), such as optical imagery chip or optical fingerprint sensor.The pixel array 322 is specially light
Detector (Photo detector) array comprising multiple optical detectors in array distribution, the optical detector can be with
As pixel unit 321 as described above.
Optionally, the optical finger print identification mould group 300 can also include optical module 310, and the optical module 310 can
The top of the pixel array of the light detection array 320 is arranged in, optical waveguide layer, filter layer (Filter) can be specifically included
And other optical elements, the filter layer can be used for filtering out the environment light for penetrating finger, and the optical waveguide layer is mainly used for
The fingerprint optical signal reflected from finger surface is directed to the pixel array and carries out optical detection.
Optionally, there are many implementations for the optical waveguide layer of the optical module 310, for example, the optical waveguide layer 311 can have
Body is collimator (Collimator) layer being made in semi-conductor silicon chip, with multiple collimation units or micropore battle array
Column, the collimation unit can be specially aperture, from the fingerprint optical signal that finger reflects, impinge perpendicularly on the collimation unit
Light can pass through and be received by pixel unit below, and the excessive light of incident angle is inside the collimation unit
It is attenuated by multiple reflections, therefore each pixel unit 321 can only receive the fingerprint optical signal right above it substantially,
To which the pixel array 322 can detect the fingerprint image of finger.
Optionally, the optical waveguide layer may be optical lens (Lens) layer, have one or more lens units, than
Such as the lens group that one or more non-spherical lenses form, the fingerprint optical signal for being used to reflect from finger is converged to below
Light detection array 320 pixel array so that the pixel array 322 can based on the fingerprint optical signal carry out at
Picture, so that processing obtains the fingerprint image signal of the finger.Optionally, light of the optical lens mirror layer in the lens unit
Pin hole can also be formed in road, the pin hole can cooperate the optical lens mirror layer to expand the optical finger print identification mould group
300 visual field, to improve the fingerprint imaging effect of the optical finger print identification mould group 300.
Optionally, the optical waveguide layer may be lenticule (Micro-Lens) layer, and the microlens layer has by multiple
The microlens array that lenticule is formed, can be formed in the light detection battle array by semiconductor growing process or other techniques
The top of pixel array 322 of column 320, and each lenticule can correspond respectively to wherein the one of the pixel array 322
A pixel unit 321.Also, other optical film layers can also be formed between the microlens layer and the pixel unit, such as
Dielectric layer or passivation layer, more specifically, can also include that there is micropore between the microlens layer and the pixel unit
Light blocking layer, wherein the micropore is formed between its corresponding lenticule and pixel unit, the light blocking layer can stop adjacent
Optical interference between lenticule and pixel unit, and light corresponding to the pixel unit is converged by the lenticule
Gather inside the micropore and is transferred to the pixel unit via the micropore to carry out optical finger print imaging.
It should be appreciated that several implementations of above-mentioned optical waveguide layer can be used alone and can also be used in combination, for example, can be with
Microlens layer is further set below the collimator layer or the optical lens mirror layer.Certainly, in the collimator layer or
When optical lens mirror layer described in person is used in combination with the microlens layer, specific laminated construction or optical path may be needed according to reality
Border needs to be adjusted.
It is also understood that the optical module 310 can be encapsulated in the light detection array 320 in specific implementation
The same optical finger print component.For example, the optical module 310 can be encapsulated in the optical detecting parts 134 it is same
The chip exterior where the light detection array 320 can also be arranged in the optical module 310 by optical finger print chip, than
Optical module 310 is fitted in above the chip as will be described, or the subelement of the optical module 310 is integrated in
It states among chip.The embodiment of the present application is not to limiting.
Optionally, as shown in fig. 6, the device 20 of the fingerprint recognition can also include substratum transparent 400, for connecting
State flexible display screen 120 and the support construction 200.The support construction 200 can by transparent flexible glue layer 400 with it is described soft
Property display screen 120 is bonded entirely, and the transparent flexible glue layer 400 can be transparent and soft layer of silica gel, or other
Transparent liquid glue or transparent flexible glue.
Optionally, it can be filled with transparent flexible glue layer 400 in multiple light passing apertures 210 in the support construction 200,
Air can be filled with.
Optionally, as shown in fig. 6, the device 20 of the fingerprint recognition can also include fixation kit 500, described fixed group
Part 500 is used to optical finger print identification mould group 300 being fixed on support construction 200.Optionally, the support construction 200
When for center, the optical finger print identification mould group 300 can pass through that screw installs fixed form, glue material is bonded fixed form, weldering
It connects fixed form or coupling fixed form is fixed in the support construction 200.The fixation kit 500 can be above-mentioned solid
Determine the corresponding modular construction of mode.
In this application, when the structure difference in optical finger print identification mould group 300, the multiple light passing aperture
The design scheme of shape size is different.
Optionally, as a kind of specific embodiment, as shown in fig. 7, optical finger print identification mould group 300 includes light
Array 320 is detected, the light detection array 320 includes multiple pixel units 321.It is the multiple in the application embodiment
Light passing aperture 210 is used for transmission special angle fingerprint optical signal in the fingerprint optical signal, and stops in the fingerprint optical signal
Nonspecific angle fingerprint optical signal.Multiple pixel units 321 in the light detection array 320 receive the special angle fingerprint light
Signal.
Optionally, the special angle fingerprint optical signal includes perpendicular to the incident fingerprint of the multiple light passing aperture 210
Optical signal.Optionally, the special angle fingerprint optical signal further includes being approximately perpendicular to the multiple 210 incidence of light passing aperture
Optical signal.
It should be understood that the special angle fingerprint optical signal can also include entering non-perpendicular to the multiple light passing aperture 210
The fingerprint optical signal penetrated, the embodiment of the present application do not limit this.
For example, the multiple light passing aperture 210 is used for transmission the fingerprint for being approximately perpendicular to the multiple light passing aperture incidence
Optical signal, multiple light passing aperture 210 are referred to as collimator, and each light passing aperture 210 is a collimation unit.Specifically
Ground, the substantially vertical fingerprint optical signal for being incident on the multiple light passing aperture 210 are transmitted to institute by the multiple light passing aperture 210
State multiple pixel units 321, and large angle incidence to the multiple light passing aperture 210 optical signal in the multiple light passing aperture
210 inside is attenuated by multiple reflections, can not be transmitted to the multiple pixel unit 321, therefore, each pixel unit
321 receive the fingerprint optical signal right above it, so that the multiple pixel unit 321 can detect the fingerprint image of finger
Picture.
In the embodiment of the present application, when the small sky of the light passing is polygonal hole, the diameter of the light passing aperture 210 is
The minimum diameter of light passing aperture 210.It is described when the multiple 210 shape size of light passing aperture is identical and in array arrangement
The period of multiple light passing apertures 210 is the centre distance of two neighboring light passing aperture；When the multiple 210 shape of light passing aperture is big
When small different, the centre distance of two neighboring light passing aperture is different, wherein the smallest centre distance is the multiple light passing aperture
210 period.
Optionally, the diameter of the multiple light passing aperture 210 be greater than the first preset value, in order to through enough light with into
Row imaging.The diameter of the multiple light passing aperture 210 is also less than the second preset value, to ensure to stop large angle incidence described in
The optical signal of multiple light passing apertures 210.The period of the multiple light passing aperture 210 is also less than third preset value, to be different from
The period of fingerprint lines, convenient for the processing of fingerprint image.That is, the parameter of the multiple light passing aperture 210 can be set
To make the optical finger print identify 300 top corresponding region of mould group an incident fingerprint ridge and/or one substantially vertical downward
The fingerprint optical signal in fingerprint valley is maximumlly transmitted to the light detection array 320, and maximizes and stop other optical signals.
Optionally, the lines cycle length of finger print is between λ min to λ max, i.e., on fingerprint two adjacent ridges or
The minimum λ min in the distance between two adjacent valleys of person, in the multiple light passing aperture 210, the multiple light passing aperture 210
Period less than 1/2 λ min, the 1/2 λ min be above-mentioned third preset value.For example, the lines period of the finger print is most
Small is 200 μm, when (a) and (b) of the multiple light passing aperture 210 such as in Fig. 5 is shown, round light passing aperture and adjacent thereto
The centre distance of round light passing aperture is less than 100 μm.
Optionally, the depth of the multiple light passing aperture 210 be D, i.e., the described support construction with a thickness of D, it is the multiple
The aspect ratio of light passing aperture 210 is more than or equal to 10, i.e., the aspect ratio of the multiple light passing aperture 210 is more than or equal to 10.Pass through meter
The aspect ratio of the multiple light passing aperture 210 is calculated to determine above-mentioned first preset value and the second preset value.It is alternatively possible to according to
The thickness D of the support construction is arranged in the diameter of the multiple light passing aperture 210.
Optionally, in the embodiment of the present application, the optical finger print identification mould group 300 can also include optical module 310,
Wherein optical module 310 may include collimation layer 311, for further being selected incident fingerprint optical signal.
Optionally, multiple apertures on the collimation layer 311 can be with multiple light passing apertures in the support construction 200
210 shape sizes are identical and correspond.Optionally, multiple apertures on the collimation layer 311 can be less than the support and tie
Multiple light passing apertures 210 on structure 200, for example, multiple apertures on the corresponding collimation layer of a light passing aperture 210, i.e., on collimation layer
Multiple apertures receive the optical signal of the same light passing aperture transmission.
Optionally, optical module 310 can further include filter layer 312.Optionally, the filter layer 312 can be infrared
End filter plate, for filtering out the optical signal of infrared band, advantageously reduces the influence of the ambient light signals such as infrared light, so as to
Enough promote fingerprint recognition performance.The filter layer 312 can be set between the collimation layer 311 and the light detection array 320,
Also it can be set in the top of the collimation layer 311.For example, blue filter material can be coated in the top of light detection array 320
Material, or setting blue color filter filter out in this way, the fingerprint image collected of light detection array 320 is blue fingerprint image
The fingerprint optical signal of red band and blue wave band and infrared band.
Optionally, in the embodiment of the present application, the device 20 of the fingerprint recognition can also include transparent 400 He of flexible glue layer
Fixation kit 500.
Optionally, as another specific embodiment, as shown in figure 8, optical finger print identification mould group 300 includes
Optical module 310 and light detection array 320.The light detection array 320 includes multiple pixel units 321.
Optionally, the optical module 310 may include optical lens assembly 313.
Optionally, the optical lens assembly 313 includes at least one optical lens.For example, the optical lens assembly
313 be the lens group of one or more optical lens compositions or the optical lens assembly 313 is that multiple lenticules form
Microlens array.
In the embodiment of the present application, multiple light passing apertures 210 are used for transmission the fingerprint light letter on the opening area 201
Number to the optical lens assembly 313, a light passing aperture transmission fingerprint optical signal cell, the fingerprint optical signal cell is hand
Optical signal on finger after the reflection of partial region, the optical lens assembly 313 to multiple fingerprint optical signal cells carry out at
Picture, the multiple pixel unit 321 receive multiple imaged fingerprint optical signal cells by the optical lens assembly 313, and
The multiple imaged fingerprint optical signal cell is handled to obtain fingerprint image signal.
Optionally, the deep diameter ratio of the multiple light passing aperture 210 is the multiple in order to expand less than the 4th preset value
Angle visual field (field of view, FOV) of light passing aperture 210 prevents the loss subregional fingerprint optical signal of finger section.It is described
The diameter of multiple light passing apertures 210 is also less than the 5th preset value, described soft to ensure that finger presses on the light passing aperture
Property display screen generate recess influence image show.The period of the multiple light passing aperture is also greater than the 6th preset value, with difference
In the period of fingerprint lines, convenient for the processing of fingerprint image.That is, the parameter of the multiple light passing aperture 210 can be set
It is set to the fingerprint optical signal so that the maximized reception finger whole region of the light detection array 320, and not to Flexible Displays
The display of screen 120 has an impact.
Optionally, the lines cycle length of finger print is between λ min to λ max, i.e., on fingerprint two adjacent ridges or
Distance is up to λ max between two adjacent valleys of person.In the multiple light passing aperture 210, the multiple light passing aperture 210
It is above-mentioned 6th preset value that period, which is greater than 2 λ min, the 2 λ max,.For example, the lines period of the finger print is up to
1mm, when the multiple light passing aperture 210 is as shown in (a) and (b) in Fig. 5, round light passing aperture and circle adjacent thereto are logical
The centre distance of light aperture is greater than 2mm.
Optionally, the field angle of the multiple light passing aperture 210 is greater than the field angle of the optical lens assembly 313.?
In the embodiment of the present application, field angle of the deep diameter of the multiple light passing aperture 210 than determining the multiple light passing aperture, when logical
The depth of light aperture 210 is smaller, and when diameter is bigger, the field angle of the light passing aperture 210 is bigger.By described in field angle determination
The deep diameter ratio of multiple light passing apertures 210, so that it is determined that above-mentioned 4th preset value.
Optionally, effect is pressed to the flexible display screen 120 at light passing aperture by finger and determines above-mentioned 5th preset value.
Optionally, in the embodiment of the present application, the optical module 310 can further include filter layer 312.
Optionally, in the embodiment of the present application, the device 20 of the fingerprint recognition can also include transparent 400 He of flexible glue layer
Fixation kit 500.
In the embodiment of the present application, the pixel array 322 in the light detection array 320 is in the flexible display screen 120
On induction region be fingerprint detection region 301 that the optical finger print identifies mould group 300, i.e. finger is placed in described flexible aobvious
When in the fingerprint detection region 301 in display screen 120, the pixel array 322 in the light detection array 320 can receive finger
The fingerprint optical signal of reflection.
Optionally, as shown in figure 9, the fingerprint detection region 301 be located at the flexible display screen 120 display area it
In.
Optionally, as a kind of possible embodiment, as shown in figure 9, optical finger print identification mould group 300 is set to
The lower section of 120 display area of flexible display screen.
Optionally, as alternatively possible embodiment, it can also be arranged in the optical finger print identification mould group 300
His position, such as the non-transparent region in the side of the flexible display screen 120 or the edge of electronic equipment, and pass through light path design
The optical finger print identification mould group 300 will be directed by the fingerprint optical signal of finger reflection, so that the fingerprint is examined
Survey the display area that region 301 is physically located the flexible display screen 120.
Optionally, the area in the fingerprint detection region 301 can be identical as the area of the pixel array 322, for example,
The shape size in the fingerprint detection region 301 is identical as the shape size of the pixel array 322, and is located at the pixel battle array
The surface of column 322.
Optionally, the area in the fingerprint detection region 301 can also be different from the area of the pixel array 322, example
Such as, for example, by light such as the convergence of the light path design of lens imaging, reflective folding light path design or other light or reflections
Road design can make the area in fingerprint detection region 301 be greater than the area of the pixel array 322.
Therefore, user is when needing to be unlocked the electronic equipment or other fingerprint authentications, it is only necessary to
By finger pressing in the fingerprint detection region 301 for being located at the flexible display screen 120, it can realize that fingerprint inputs.Due to referring to
Line detection can be realized under screen, therefore electronic equipment using the above structure refers to without the special reserved space in its front to be arranged
Line key (such as Home key), so as to which using screen scheme comprehensively, i.e., the display area of the described flexible display screen 120 can be with base
Originally the front of entire electronic equipment is expanded to.
Optionally, the light detection array 320 in the optical finger print identification mould group 300 can be an optical finger print sensing
The area of device, the fingerprint detection region 301 of the mould group 300 of optical finger print identification at this time is smaller and position is fixed.
Optionally, the light detection array 320 in the optical finger print identification mould group 300 can specifically include multiple optics and refer to
Line sensor；The multiple optical fingerprint sensor can be disposed side by side on the flexible display screen 120 by connecting method
The partial region of lower section or whole region, and the induction region of the multiple optical fingerprint sensor collectively forms optical finger print
Identify the fingerprint detection region 301 of mould group 300.In other words, the fingerprint detection region 301 of optical finger print identification mould group 300 can
To include multiple subregions, each subregion corresponds respectively to the induction region of one of optical fingerprint sensor, thus will
The fingerprint detection region 301 of optical finger print identification mould group 300 can extend to the master of the lower half portion of the flexible display screen 120
Region is wanted, that is, expands to the usual pressing area of finger, to realize that blind input by formula fingerprint operates.Alternatively, when the light
When fingerprint sensor quantity is enough, it is even entire aobvious that the fingerprint detection region 301 can be extended to half of display area
Show region, to realize half screen or full frame fingerprint detection.
Optionally, as shown in figure 9, the opening area 201 is set to the lower section in the fingerprint detection region 301.
Optionally, the opening area 201 is set to the underface in the fingerprint detection region 301, the opening area
The center in 201 center and the fingerprint detection region 301 is respectively positioned on the same vertical line perpendicular to the pixel array 322
On.
Optionally, the shape size of the opening area 201 is identical as the shape size in the fingerprint detection region 301,
As a kind of possible embodiment, the fingerprint detection region 301, the opening area 201 and the pixel array 322
Shape size it is identical, and the center in fingerprint detection region 301, the center of the opening area 201 and the pixel array
322 center is respectively positioned on the same vertical line perpendicular to the pixel array 322.
Optionally, the shape size of the opening area 201 is different from the fingerprint detection region 301.For example, described open
Bore region be it is rectangular, the fingerprint detection region be circle.
As shown in Figure 10, the embodiment of the present application also provides a kind of electronic equipment 30, which may include soft
The device 20 of the fingerprint recognition of property display screen 120 and above-mentioned the embodiment of the present application, wherein the device 20 of the fingerprint recognition is set
It is placed in 120 lower section of flexible display screen.
The electronic equipment 30 can be any electronic equipment with flexible display screen 120.When flexible display screen 120 has
When foldability, which is alternatively referred to as foldable electronic.
Foldable electronic 30 has a variety of folded forms and mode of appearance, as shown in figure 11, the flexible display screen
First area 121 on 120 is the bent area of the flexible display screen 120, the second area on the flexible display screen 120
122 and third region 123 be the flexible display screen 120 non-bent area.(a) in Figure 11 is that the foldable electronics of eversion type is set
Standby 30 appearance diagram, when folded state is presented in electronic equipment, the flexible display screen 120 is on electronic equipment surface.Figure
(a) in 11 is the appearance diagram of varus formula foldable electronic 30, described soft when folded state is presented in electronic equipment
Property display screen 120 is on the inside of electronic equipment.
Optionally, the non-bent area of flexible display screen 120 is arranged in the device 20 of the fingerprint recognition, such as is arranged second
The lower section whole or regional area in region 122 and/or third region 123.As shown in (a) in Figure 11, the fingerprint recognition
Device 20 regional area below third region 123 is set.As shown in (b) in Figure 11, the device of the fingerprint recognition
20 are arranged in the regional area below second area 122.
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 limit the range of the embodiment of the present application.
It should be understood that the term used in the embodiment of the present application and the appended claims is only merely for the specific reality of description
The purpose for applying example, is not intended to be limiting the embodiment of the present application.For example, being made in the embodiment of the present application and the appended claims
The "an" of singular, " above-mentioned " and "the" are also intended to including most forms, unless context clearly shows that other
Meaning.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member can be realized with electronic hardware, computer software, or a combination of the two, can in order to clearly demonstrate hardware and software
Interchangeability generally describes each exemplary composition and step according to function in the above description.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In several embodiments provided herein, it should be understood that disclosed system, device can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.In addition, shown or discussed phase
Mutually between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection is also possible to electricity, mechanical or other form connections.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of unit therein can be selected to realize the embodiment of the present application scheme according to the actual needs
Purpose.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (read-only memory,
ROM), random access memory (random access memory, RAM), magnetic or disk etc. are various can store program
The medium of code.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should all cover within the scope of protection of this application.Therefore, the protection scope of the application should be with right
It is required that protection scope subject to.
Claims (21)
1. a kind of device of fingerprint recognition, suitable for the electronic equipment with flexible display screen characterized by comprising support
Structure and optical finger print identify mould group；
The support construction is set to below the flexible display screen, is used to support the flexible display screen；
Wherein, the support construction is provided with multiple light passing apertures, and the multiple light passing aperture via the flexibility for that will show
Fingerprint optical signal transmission to the optical finger print that human finger above display screen reflects or scatters and return identifies mould group；
The optical finger print identification mould group is set to below the multiple light passing aperture, for receiving the fingerprint optical signal,
Described in fingerprint optical signal be used to detect the finger print information of the finger.
2. the apparatus according to claim 1, which is characterized in that the support construction is the center of the electronic equipment.
3. the apparatus of claim 2, which is characterized in that opening area, the aperture are arranged in the support construction
Multiple light passing apertures are provided on region.
4. device according to claim 3, which is characterized in that the upper surface of the support construction in the same plane, institute
The lower surface for stating support construction is formed with step structure in the fringe region of the opening area.
5. device described in any one of -4 according to claim 1, which is characterized in that the multiple light passing aperture is used for transmission institute
Special angle fingerprint optical signal in fingerprint optical signal is stated, and stops nonspecific angle fingerprint optical signal in the fingerprint optical signal,
The special angle fingerprint optical signal is the fingerprint optical signal perpendicular to the multiple light passing aperture incidence.
6. device according to claim 5, which is characterized in that the optical finger print identification mould group includes multiple pixel lists
Member, the multiple pixel unit is for receiving the special angle fingerprint optical signal.
7. device according to claim 5, which is characterized in that the aspect ratio of the multiple light passing aperture is greater than 10.
8. device according to claim 5, which is characterized in that two light passings of arbitrary neighborhood in the multiple light passing aperture
The centre distance of aperture is less than 1/2 λmin, wherein λminFor the minimum value of fingerprint period.
9. device described in any one of -4 according to claim 1, which is characterized in that the optical finger print identification mould group includes light
Lens assembly is learned, the optical lens assembly includes at least one optical lens.
10. device according to claim 9, which is characterized in that each light passing aperture in the multiple light passing aperture
Field angle is greater than the field angle of the optical lens assembly.
11. device according to claim 9, which is characterized in that the light passing of arbitrary neighborhood is small in the multiple light passing aperture
The centre distance in hole is greater than 2 λmax, wherein λmaxFor the maximum value of fingerprint period.
12. device described in any one of -4 according to claim 1, which is characterized in that the multiple light passing aperture is size phase
Same circular aperture or polygonal hole.
13. device described in any one of -4 according to claim 1, which is characterized in that the multiple light passing hole separation arrangement.
14. device according to claim 13, which is characterized in that the arrangement mode of the multiple light passing aperture is to intersect row
Column, matrix arrangement and random alignment are any one or more of.
15. device described in any one of -4 according to claim 1, which is characterized in that described device further include:
Transparent flexible glue layer, for connecting the flexible display screen and the support construction.
16. device according to claim 15, which is characterized in that it is small that the transparent flexible glue layer extends to the multiple light passing
Kong Zhong.
17. device described in any one of -4 according to claim 1, which is characterized in that described device further include:
Fixation kit, for optical finger print identification mould group to be fixed on the support construction.
18. device according to claim 3 or 4, which is characterized in that the opening area is set under fingerprint detection region
Side；
The optical finger print identification mould group is specifically used for receiving the fingerprint optical signal in the fingerprint detection region.
19. device according to claim 18, which is characterized in that the center of the opening area and the fingerprint detection area
The center in domain is respectively positioned on the same vertical line perpendicular to optical finger print identification mould group.
20. a kind of electronic equipment characterized by comprising flexible display screen and,
According to claim 1 to the device of fingerprint recognition described in any one of 19, wherein the device of the fingerprint recognition is arranged
Below the flexible display screen.
21. electronic equipment according to claim 20, which is characterized in that the device of the fingerprint recognition is set to described soft
Property display screen non-bent area below.
Priority Applications (1)
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| CN201920395088.XU CN209543384U (en) | 2019-03-25 | 2019-03-25 | The device and electronic equipment of fingerprint recognition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395088.XU CN209543384U (en) | 2019-03-25 | 2019-03-25 | The device and electronic equipment of fingerprint recognition |
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| CN209543384U true CN209543384U (en) | 2019-10-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110767095A (en) * | 2019-11-13 | 2020-02-07 | 京东方科技集团股份有限公司 | Flexible display module, preparation method thereof and flexible display device |
| CN111052139A (en) * | 2019-11-05 | 2020-04-21 | 深圳市汇顶科技股份有限公司 | Under-screen fingerprint identification device, LCD fingerprint identification system and electronic equipment |
| CN111066028A (en) * | 2019-11-04 | 2020-04-24 | 深圳市汇顶科技股份有限公司 | Liquid crystal display fingerprint identification system, electronic device and fingerprint identification module |
| CN111241954A (en) * | 2020-01-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Display panel and electronic device |
| CN111860172A (en) * | 2020-06-19 | 2020-10-30 | 北京极豪科技有限公司 | Fingerprint identification assembly, electronic equipment and fingerprint identification method |
| CN111898415A (en) * | 2020-06-16 | 2020-11-06 | 浙江大学 | Method and device for imaging fingerprints under screen and electronic equipment |
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| CN111066028A (en) * | 2019-11-04 | 2020-04-24 | 深圳市汇顶科技股份有限公司 | Liquid crystal display fingerprint identification system, electronic device and fingerprint identification module |
| CN111066028B (en) * | 2019-11-04 | 2023-09-08 | 深圳市汇顶科技股份有限公司 | Fingerprint identification system of liquid crystal display screen, electronic device and fingerprint identification module |
| CN111052139A (en) * | 2019-11-05 | 2020-04-21 | 深圳市汇顶科技股份有限公司 | Under-screen fingerprint identification device, LCD fingerprint identification system and electronic equipment |
| CN111052139B (en) * | 2019-11-05 | 2024-03-15 | 深圳市汇顶科技股份有限公司 | Under-screen fingerprint identification device, LCD fingerprint identification system and electronic equipment |
| CN110767095A (en) * | 2019-11-13 | 2020-02-07 | 京东方科技集团股份有限公司 | Flexible display module, preparation method thereof and flexible display device |
| CN111241954A (en) * | 2020-01-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Display panel and electronic device |
| CN111241954B (en) * | 2020-01-03 | 2024-07-16 | 京东方科技集团股份有限公司 | Display panel and electronic device |
| CN111898415A (en) * | 2020-06-16 | 2020-11-06 | 浙江大学 | Method and device for imaging fingerprints under screen and electronic equipment |
| CN111898415B (en) * | 2020-06-16 | 2023-08-08 | 浙江大学 | Under-screen fingerprint imaging method and device and electronic equipment |
| CN111860172A (en) * | 2020-06-19 | 2020-10-30 | 北京极豪科技有限公司 | Fingerprint identification assembly, electronic equipment and fingerprint identification method |
| CN113745302A (en) * | 2021-09-03 | 2021-12-03 | 深圳市汇顶科技股份有限公司 | Reinforcing structure, method for manufacturing reinforcing structure, display assembly and electronic equipment |
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