CN209168151U - Fingerprint identification device and electronic equipment - Google Patents
Fingerprint identification device and electronic equipment Download PDFInfo
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- CN209168151U CN209168151U CN201822214046.XU CN201822214046U CN209168151U CN 209168151 U CN209168151 U CN 209168151U CN 201822214046 U CN201822214046 U CN 201822214046U CN 209168151 U CN209168151 U CN 209168151U
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Abstract
It includes: micro- telecentric lens array group that the embodiment of the present application, which provides a kind of fingerprint identification device and electronic equipment, the fingerprint identification device, receives the optical signal reflected to form via human finger；Fingerprint sensor is set to the lower section of micro- telecentric lens array group, is imaged based on the optical signal for passing through micro- telecentric lens array group.The fingerprint identification device and electronic equipment of the embodiment of the present application can be to avoid the light losses of vertical direction for the scheme of periodical through-hole array, and then can reduce the time for exposure of fingerprint sensor.Relative to the scheme of lenticule, which can also allow the image deformation of whole system to reduce.The fingerprint identification device can be such that image quality and contrast is improved.
Description
Technical field
This application involves fingerprint identification technology field more particularly to a kind of fingerprint identification devices and electronic equipment.
Background technique
Under published screen there are mainly two types of optical fingerprint identification device technologies.The first is based on periodical microwell array
Screen under optical fingerprint identification technology, this scheme light energy losses are big, and sensor exposure time is long；Another kind is based on micro-
The image deformation of optical fingerprint identification technology under the screen of lens, the fingerprint identification device of this scheme is larger.
Utility model content
In view of this, the embodiment of the present application provides a kind of fingerprint identification device and electronic equipment, relative to periodically logical
, can be to avoid the light loss of vertical direction for the scheme of hole array, and then the time for exposure of fingerprint sensor can be reduced.Phase
For the scheme of lenticule, which can also allow the image deformation of whole system to reduce.Therefore, the embodiment of the present application
Fingerprint identification device so that the image quality and contrast of fingerprint recognition are greatly improved.
In a first aspect, providing a kind of fingerprint identification device, comprising: micro- telecentric lens array group is received via human body hand
The optical signal that digital reflex is formed；Fingerprint sensor is set to the lower section of micro- telecentric lens array group, based on across described micro-
The optical signal of telecentric lens array group is imaged.
In one possible implementation, micro- telecentric lens array group includes: doubly telecentric lens array, is received
The optical signal of vertical direction；Object space telecentric lens array, the object space telecentric lens array are set to the doubly telecentric mirror
The lower section of head array is collimated and is focused to the optical signal transmitted from the doubly telecentric lens array, and by the light
Signal is transferred to the fingerprint sensor.
In one possible implementation, the doubly telecentric lens array includes multiple doubly telecentric lens units, described
Doubly telecentric lens unit includes the first lenticule, the second lenticule and setting in first lenticule and described second micro-
The first micropore diameter diaphragm between mirror；And/or the object space telecentric lens array includes multiple object space telecentric lens units, it is described
Object space telecentric lens unit includes third lenticule and the second micropore diameter diaphragm for being set to below the third lenticule.
In one possible implementation, the first micropore diameter diaphragm is set to first lenticule and described
At the confocal face of two lenticules and/or the second micropore diameter diaphragm is set at the image space focal plane of the third lenticule.
Optionally, the focal length of the focal length of first lenticule and second lenticule can be identical or different.
In one possible implementation, the diameter range of the first micropore diameter diaphragm is 20 μm~1 μm, described the
The thickness range of one micropore diameter diaphragm is 100nm~100 μm；And/or the diameter range of the second micropore diameter diaphragm is 500nm
~20 μm, the thickness range of the second micropore diameter diaphragm is 100nm~100 μm.
Optionally, the thickness of the first micropore diameter diaphragm and/or the second micropore diameter diaphragm can be 500nm.
In one possible implementation, the first micropore diameter diaphragm includes to top biconial hole, and described pair of top is double
The angle of taper of bellmouth the second micropore diameter identical and/or described with the angle that the rim ray of first lenticule converges
Diaphragm includes single bellmouth, the angle that the angle of taper of the list bellmouth is converged with the rim ray by the third lenticule
It spends identical.
In one possible implementation, micro- telecentric lens array group includes spherical lenticule and/or aspheric
Face type lenticule.
Optionally, the range of curvature radius of the spherical lenticule in micro- telecentric lens array group is 5 μm~100 μ
m.The focal range of aspherical types lenticule in micro- telecentric lens array group is 5 μm~2000 μm.
In one possible implementation, between the doubly telecentric lens array and the object space telecentric lens array
Distance is less than or equal to 200 μm.
In one possible implementation, a pixel unit of the fingerprint sensor corresponds to micro- telecentric lens
The micro- telecentric lens group of at least one of array group, for example, if a micro- telecentric lens group includes a doubly telecentric lens unit
With an object space telecentric lens unit, then the corresponding one or more of fingerprint sensor a pixel is by a doubly telecentric camera lens list
Micro- telecentric lens group that member and an object space telecentric lens unit are constituted.
Optionally, the object space telecentric lens unit in object space telecentric lens array can be with the pixel unit of fingerprint sensor
It corresponds.And doubly telecentric lens array can be corresponded with object space telecentric lens array, can not also be corresponded.Example
Such as, a doubly telecentric lens unit can correspond to one or more object space telecentric lens units or an object space telecentric lens
Unit can also correspond to multiple doubly telecentric lens units.
In one possible implementation, described device further include: filter plate is set to the upper of the fingerprint sensor
Side, is filtered the optical signal reflected to form by human finger.
In one possible implementation, when the fingerprint identification device is applied to the electronic equipment with display screen
When, the fingerprint identification device is fixed on the lower section of the display screen, and there are gaps between the display screen.
In one possible implementation, the electronic equipment further includes center, and the fingerprint identification device is fixed on
On the center.
In one possible implementation, foamed cotton layer is provided with below the display screen, the foamed cotton layer is described
The installation site of fingerprint identification device has aperture, penetrates so that the fingerprint identification device can be received from the display screen
The optical signal reflected to form via human finger.
In one possible implementation, the arrangement mode of micro- telecentric lens array group is square or six sides
Shape.
In one possible implementation, the lenticule in micro- telecentric lens array group and micro- telecentric lens
Lenticule and micro- telecentric lens battle array between micropore diameter diaphragm in array group and/or in micro- telecentric lens array group
It is filled between lenticule in column group by any combination of following transparent medium: air, glass and plastics.
For example, can be filled by air between the first lenticule and the first micropore diameter diaphragm, the first micropore diameter diaphragm and
It can be by glass-filled etc. between two lenticules.
In one possible implementation, the material of the lenticule in micro- telecentric lens array group is glass or modeling
Lenticule in material and/or micro- telecentric lens array group is realized by micro-nano technology technique or stamping technique.
In one possible implementation, the micropore diameter diaphragm in micro- telecentric lens array group passes through micro-nano technology
Technique or Nano imprint technique make.
Second aspect provides a kind of electronic equipment, any including display screen and the first aspect or first aspect
Fingerprint identification device in possible implementation, and the fingerprint identification device is set to the lower section of the display screen.
In one possible implementation, there are gaps between the fingerprint identification device and the display screen.
In one possible implementation, the electronic equipment further includes center, and the fingerprint identification device is fixed on
On the center.
Optionally, which can be greater than or equal to 600 μm at a distance from display screen.
In one possible implementation, foamed cotton layer is provided with below the display screen, the foamed cotton layer is described
The installation site of fingerprint identification device has aperture, penetrates so that the fingerprint identification device can be received from the display screen
The optical signal reflected to form via human finger.
By using telecentric lens, fingerprint collecting can be carried out to telecentric lens upper area, and by upper vertical regions
Light focus on the pixel unit of fingerprint sensor.And by telecentric lens micromation and array may be implemented one
Fingerprint imaging in set a distance.For the scheme of periodical through-hole array, can to avoid the light loss of vertical direction, into
And the time for exposure of fingerprint sensor can be reduced.Relative to the scheme of lenticule, which can also allow entire system
The image deformation of system reduces.The fingerprint identification device can achieve higher image quality and contrast.
These aspects or other aspects of the application can more straightforward in the following description.
Detailed description of the invention
Fig. 1 shows the schematic block diagram of the application scenarios of the embodiment of the present application.
Fig. 2 is the schematic block diagram of the fingerprint identification device of the embodiment of the present application.
Fig. 3 shows the imaging schematic diagram of object space telecentric lens.
Fig. 4 shows the imaging schematic diagram of image space telecentric lens.
Fig. 5 shows the imaging schematic diagram of doubly telecentric camera lens.
Fig. 6 is the schematic block diagram of micro- telecentric lens array group in the embodiment of the present application.
Fig. 7 shows the structural schematic of the fingerprint identification device of the embodiment of the present application.
Fig. 8 is the assembly structure figure of the fingerprint identification device of the embodiment of the present application.
Fig. 9 is the schematic block diagram of the electronic equipment of the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present application, below in conjunction with the application
Attached drawing in embodiment, the technical scheme in the embodiment of the application is clearly and completely described.Obviously, described reality
Applying example only is a part of the embodiment of the embodiment of the present application, instead of all the embodiments.Based on the embodiment in the application, originally
The range of the embodiment of the present application protection all should belong in field those of ordinary skill every other embodiment obtained.
A kind of common application scenarios, fingerprint identification device provided by the embodiments of the present application can apply smart phone,
Tablet computer and other with the mobile terminal of display screen or other terminal devices；More specifically, in above-mentioned terminal device
In, fingerprint identification device can be specially optical finger print device, and the regional area or complete below display screen can be set
Portion region is to form (Under-display) optical fingerprint systems under screen.
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 100
Including display screen 120 and fingerprint identification device 130, wherein the fingerprint identification device 130 is arranged under the display screen 120
The regional area of side.The fingerprint identification device 130 may include the induction arrays with multiple optical sensor units, wherein
The induction arrays are also possible to a fingerprint sensor.The induction arrays region or its optical sensor region are institute
State the fingerprint detection region 103 of fingerprint identification device 130.As shown in Figure 1, the fingerprint detection region 103 is located at the display
Among the display area 102 of screen 120, therefore, user is needing to be unlocked the terminal device 100 or other fingerprints
When verifying, it is only necessary to by finger pressing in the fingerprint detection region 103 for being located at the display screen 120, can realize and refer to
Line input.Since fingerprint detection can be realized in screen, terminal device 100 using the above structure is special without its front
Reserved space is arranged fingerprint key (such as Home key).
Embodiment as one preferred, the display screen 120 can use the display screen with spontaneous light display unit,
Such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display screen or micro-led
(Micro-LED) display screen.In addition, the display screen 120 can be specially touching display screen, it is aobvious can not only to carry out picture
Show, touch or the pressing operation of user can also be detected, to provide a personal-machine interactive interface for user.For example, one
In kind embodiment, the terminal device 100 may include touch controller, and the touch controller can be specially touch surface
Plate can be set on 120 surface of display screen, partially can also integrate or be monolithically integrated into the display screen 120
Portion, to form the touching display screen.For using OLED display screen, the fingerprint identification device 130 can use institute
It states OLED display screen 120 and is located at the display unit (i.e. OLED light source) in the fingerprint detection region 103 as optical finger print inspection
The excitation light source of survey.
In other embodiments, the fingerprint identification device 130 can also be mentioned using built-in light source or external light source
For the optical signal for carrying out fingerprint detection.In this case, the fingerprint identification 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 display panel
Liquid crystal display for, fingerprint detection under the screen to support liquid crystal display, the fingerprint identification device 130 can also include
For the excitation light source of optical finger print detection, the excitation light source can be specially infrared light supply or specific wavelength non-visible light
Light source, can be set below the backlight module of the liquid crystal display or be arranged in the guarantor of the terminal device 100
Fringe region below protecting cover plate, and the fingerprint identification device 130 is arranged below the backlight module, and the backlight mould
Group is by carrying out aperture or other optical designs to film layers such as diffusion sheet, blast piece, reflector plates to allow fingerprint detection light to wear
It crosses liquid crystal display panel and backlight module and reaches the induction arrays of the fingerprint identification device 130.
Also, the induction arrays of the fingerprint identification device 130 are specifically as follows optical detector (Photodetector) battle array
Column comprising multiple optical detectors in array distribution, the optical detector can be used as optical sensor list as described above
Member.When the light that finger pressing is at the fingerprint detection region 103, and the display unit in the fingerprint detection region 103 issues
Occur to reflect and formed reflected light in the fingerprint of finger surface, wherein the ridge of the finger print and the reflected light of paddy are different
, reflected light penetrates from the display screen 120 and is received and converted to corresponding electric signal by the photodetector array, i.e.,
Fingerprint detection signal；Fingerprint image data can be obtained based on the fingerprint detection signal, and can be referred to further progress
Line matching verifying, to realize optical finger print identification function in the terminal device 100.
In other alternate embodiments, the fingerprint identification device 130 also be can be set below the display screen 120
Whole region, so that the fingerprint detection region 103 is expanded to the entire display area 102 of the entire display screen 120, it is real
Existing full frame fingerprint recognition.
It should be understood that the terminal device 100 can also include transparency protected cover board 110, institute in specific implementation
Stating cover board 110 can be glass cover-plate or sapphire cover board, be set to the top of the display screen 120 and cover the end
The front of end equipment 100.Therefore, in the embodiment of the present application, the pressing of so-called finger the display screen 120 actually refer to by
It is pressed in the cover board 110 of 120 top of display screen or the protective layer of the covering cover board 110.
As a kind of optional implementation, as shown in Figure 1, the fingerprint identification device 130 may include optical detection part
Divide 134 and optical module 132, the light detecting portion 134 includes the induction arrays and is electrically connected with the induction arrays
Reading circuit and other auxiliary circuits, a chip (Die) can be produced on by semiconductor technology；The i.e. described light inspection
Optical imagery chip or image sensor chip can be produced on by surveying part 134.
The optical module 132 can be set in the top of the induction arrays of the light detecting portion 134, the optics group
Part 132 may include filter layer (Filter), optical waveguide layer and other optical elements；The filter layer, which can be used for filtering out, to be penetrated
The environment light of finger, and the optical waveguide layer be mainly used for will from the guiding of finger surface reflected reflected light (for example optics is quasi-
Straight or convergence) extremely induction arrays progress optical detection.
To be detected finger surface of the light that the display screen 120 issues above the display screen 120 reflects, from
After the reflected reflected light of finger carries out optical alignment or convergence through the microwell array or the lens unit, into
One step is received after the filtering of filter layer by the optical detecting parts 134, and the optical detecting parts 134 can be further
The reflected light received is detected, to get the fingerprint image of the finger to realize fingerprint recognition.
It should be appreciated that above-mentioned fingerprint identification device 130 is only a kind of illustrative structure, and in specific implementation, the optics
The position of the filter layer of component 132 is not limited in the lower section of the optical waveguide layer；For example, in a kind of alternate embodiment, the filter
Photosphere also can be set between the optical waveguide layer and the display screen 120, that is, be located above the optical waveguide layer；Alternatively, described
Optical module 132 may include two layers of filter layer, and the two is separately positioned on above and below the optical waveguide layer.In other substitutions
In embodiment, which is also desirably integrated into inside the optical waveguide layer, possibly even dispenses, and the application does not limit this
System.
In specific implementation, the optical module 132 can be encapsulated in the same optics with the light detecting portion 134 and refer to
Line chip.It is also possible to be mounted on inside fingerprint identification device as the component relatively independent with optical detecting parts 134, is
The optical module 132 is arranged in the chip exterior where the light detecting portion 134, than optical module 132 as will be described
It is fitted in above the chip, or the subelement of the optical module 132 is integrated among said chip.Wherein, institute
Stating the optical waveguide layer of optical module 132, there are many implementations.
In one embodiment, the optical waveguide layer of the optical module 132 is specially in semi-conductor silicon chip or other substrates
The optical path modulation device or beam path alignment device that (such as Si oxide or nitride) is made, with multiple optical path modulation lists
Member or collimation unit, specifically, the light path modulation unit or collimation unit can be specially logical with high-aspect-ratio
Hole, therefore the multiple collimation unit or lens unit may be constructed through-hole array.From the reflected reflected light of finger
In, the light for being incident on the light path modulation unit or collimation unit can be passed through and be connect by optical sensor unit below
It receives, the through-hole that each optical sensor unit can substantially receive above it is guided over the reflected light of the fingerprint lines come,
To which the induction arrays can detect the fingerprint image of finger.
In other alternate embodiments, the optical waveguide layer also may include optical lens (Lens) layer, have one or
Multiple optical lens units, such as the lens group of one or more aspherical types lenticule compositions.It is reflected anti-from finger
Light is penetrated to receive after optical lens unit progress beam path alignment or convergence, and by optical sensor unit below,
Accordingly, the induction arrays can detecte out the fingerprint image of finger.
On the other hand, the induction arrays of the light detecting portion 134 can specifically only include single induction arrays, can also
Using double induction arrays (Dual Array) or more induction arrays with two or more induction arrays arranged side by side
The framework of (Multiple Array).When the light detecting portion 134 is using double induction arrays or more induction arrays frameworks,
The optical module 132 can cover described two or above induction arrays using an independent optical waveguide layer simultaneously；It is alternative
Ground, the optical module 132 also may include two or more optical waveguide layers arranged side by side, such as two or more optical path tune
Device or beam path alignment device processed or two or more optical lens mirror layer, described two or arranged side by side above optical waveguide layers point
It is not correspondingly arranged at the top of described two or above induction arrays, for drawing associated reflections light guide or converging under it
The induction arrays of side.
In other substitution implementations, the display screen 120 can also use the display screen of non-spontaneous light, for example use
The liquid crystal display of backlight；In this case, the fingerprint identification device 130 just can not be using the aobvious of the display screen 120
Show unit as excitation light source, it is therefore desirable to be internally integrated excitation light source in the fingerprint identification device 130 or outside it
Setting motivates light source to realize that optical finger print detects, and testing principle is consistent with content is described above.
Although should be appreciated that in the embodiment shown in fig. 1 to be to shield lower optical finger print identification with the fingerprint identification device
For device, still, in other embodiments, the fingerprint identification device of the terminal device 100 can also be referred to using ultrasonic wave
Line identification device or other kinds of fingerprint identification device replace.Type and specific structure of the application to fingerprint identification device
It is not particularly limited, as long as above-mentioned fingerprint identification device can satisfy carries out fingerprint recognition inside the display screen of terminal device
Performance requirement.
In one implementation, light can be transferred to sense using periodical microwell array by fingerprint identification device 130
It answers on array, this scheme light energy losses are big, and sensor exposure time is long.
In another implementation, light can be transferred to induction arrays using lenticule by fingerprint identification device 130
On, and since using common lens, in imaging process, when object distance changes, institute is at image size meeting
It changes accordingly, may result in the camera lens of the same focal length, corresponding different object distance, it will have different times magnifications
Rate.In addition, common lens all have a certain range of depth of field, when testee is not in the field depth of camera lens, image will
It thickens, can not clearly focus.It is not high so as to cause fingerprint recognition precision.
Above-mentioned various in order to solve the problems, such as, the embodiment of the present application provides a kind of new fingerprint identification device, which knows
Other device can be set below display screen.Specifically, as shown in Fig. 2, the fingerprint identification device 200 may include micro- telecentric mirror
Head array group 210 and fingerprint sensor 220, micro- telecentric lens array group 210 can be set in the fingerprint sensor 220
Top.Micro- telecentric lens array 210 is for receiving being reflected to form by human finger and believing in the light of vertical direction
Number, and then the optical signal is collimated and focused.The fingerprint sensor 220 is used for based on across micro- telecentric lens battle array
The optical signal of column group 210 is imaged.
In order to make it easy to understand, doing a simple introduction to telecentric lens first.
So-called telecentric lens, the substantially combination of common lens and pinhole imaging system principle.It can be in certain object distance model
In enclosing, the image enlargement ratio made be will not change, and is not changed with the depth of field and is changed, and no parallax, is applied to finger
In line identification technology, the precision of fingerprint recognition can be improved.
In general, telecentric lens can be divided into object space telecentric lens, image space telecentric lens and doubly telecentric camera lens again.Below with reference to
Fig. 3 to Fig. 5 illustrates the principles of various telecentric lens.
Fig. 3 shows the image-forming principle of object space telecentric lens.As shown in figure 3, being put at the image space focal plane of ordinary lens
An aperture diaphragm is set, the effect of this aperture diaphragm is only to allow the object space light (such as light 1 and light 2) of parallel incidence that can arrive
Up to picture planar imaging, from geometrical relationship it can be seen that at this moment as not near big and far smaller relationship.That is, being equivalent to object
At infinity.
Fig. 4 shows the image-forming principle of image space telecentric lens.As shown in figure 4, being put at the object space focal plane of ordinary lens
Set aperture diaphragm, image space chief ray (such as light 1 and light 2) made to be parallel to optical axis, the amplification factor of image space telecentric lens with
Image distance is unrelated.
Fig. 5 shows the image-forming principle of doubly telecentric camera lens.As shown in figure 5, doubly telecentric camera lens and in object space telecentric lens and
The advantages of image space telecentric lens.It is made of two groups of lens (such as lens 1 and lens 2), aperture is housed at the confocal face of two groups of lens
Diaphragm keeps its chief ray (such as light 1 and light 2) parallel with optical axis in object space and image space.
Since single telecentric lens are imaged, it usually needs bigger imaging surface, therefore entire lens group can compare
It is thick.It but will be after the micromation of telecentric lens array, so that it may to the image objects of certain distance, so as to be applied to refer to
In line identification technology.And the telecentric lens after array micromation constitute fingerprint identification device provided by the embodiments of the present application
Micro- telecentric lens array group 210 in 200.
Micro- telecentric lens array group can be the combination of the telecentric lens unit of various array micromations as its name suggests.
For example, as shown in fig. 6, micro- telecentric lens array group 210 may include doubly telecentric lens array 211 and object space telecentric lens battle array
Column 212, the object space telecentric lens array 212 can be set in the lower section of doubly telecentric lens array 211, wherein the doubly telecentric mirror
The optical signal that 211 primary recipient of head array is reflected to form by human finger, and the received light letter for being vertically oriented low-angle
Number；And the object space telecentric lens array 212 is then used to carry out standard to the optical signal transmitted from the doubly telecentric lens array 211
Straight and focusing, and the induction arrays of fingerprint sensor 220 then can receive the light letter that object space telecentric lens array 212 transmits
Number, and be imaged based on the optical signal.
In the embodiment of the present application, doubly telecentric lens array 211 and object space telecentric lens array 212 are equally micromations
Telecentric lens afterwards.What the doubly telecentric lens array 211 can be made of multiple doubly telecentric lens units, and as shown in Figure 5,
One doubly telecentric lens unit is made of two lenticules and a micropore diameter diaphragm, wherein the micropore diameter diaphragm can be with
It is arranged between two lenticules.What the object space telecentric lens array 212 can be made of multiple object space telecentric lens units, and
And as shown in Figure 3, an object space telecentric lens are then made of a lenticule and a micropore diameter diaphragm, wherein the micropore diameter
The side in lenticule imaging can be set in diaphragm.That is, the optical signal reflected to form by finger through display screen it
Afterwards, it needs successively by microlens array 1 as shown in Figure 7, micropore diameter diaphragm array 1, microlens array 2, microlens array 3
And micropore diameter diaphragm array 2, get to fingerprint sensor.Wherein, microlens array 1, micropore diameter diaphragm array 1 and micro-
Lens array 2 constitutes doubly telecentric lens array 211, and microlens array 3 and micropore diameter diaphragm array 2 then construct square telecentric mirror
Head array 212.
Alternatively, which only can also be arranged one in the lower section of doubly telecentric lens array
Micropore diameter diaphragm array.That is, the optical signal reflected to form by finger after through display screen, can successively pass through such as
Microlens array 1, micropore diameter diaphragm array 1, microlens array 2 or microlens array 3 and micropore diameter diaphragm shown in Fig. 7
Array 2, then reach fingerprint sensor.Wherein, microlens array 1, micropore diameter diaphragm array 1 and microlens array 2 constitute double
Telecentric lens array 211, the doubly telecentric lens array are used to receive the optical signal of vertical direction reflected to form by fingerprint, and micro-
Aperture diaphragm array 2 is then used to converge the light transmitted by doubly telecentric lens array, and is transferred to fingerprint sensor.
It should be understood that knowing in the fingerprint being made of micro- telecentric lens array group and fingerprint sensor that the embodiment of the present application proposes
In other device, which is mainly to be made of microlens array and micropore diameter diaphragm array.To then such as
What combines three kind telecentric lens of the Fig. 3 into Fig. 5 to realize, is not specifically limited herein.
Optionally, in the embodiment of the present application, between lenticule and micropore diameter diaphragm and/or between lenticule and lenticule
It is filled by air, glass, plastics or other any transparent materials, or is also possible to any group of above-mentioned various transparent materials
It closes.For example, between the microlens array 1 in Fig. 7 and micropore diameter diaphragm array 1, micropore diameter diaphragm array 1 and microlens array 2
Between, the filling between microlens array 2 and microlens array 3, between microlens array 3 and micropore diameter diaphragm array 2 can be with
Be it is identical be also possible to it is different.For example, can all be air, glass or plastics etc..Or be also possible to lenticule and
Filling between micropore diameter diaphragm between lenticule and lenticule is different.For example, can be between lenticule and micropore diameter diaphragm
It is air filling, and can be glass-filled between lenticule and lenticule, the application does not constitute restriction to this.
Optionally, the lenticule in the embodiment of the present application can be realized using micro-nano technology technique or stamping technique, and
Micropore diameter diaphragm in the embodiment of the present application can be made by micro-nano technology technique or nanoimprinting process, and then can be with
It realizes telecentric lens miniaturized arrays.
It will be appreciated by those skilled in the art that a doubly telecentric lens unit is by two lenticules and a micropore diameter diaphragm group
At an object space telecentric lens unit is then made of a lenticule and a micropore diameter diaphragm.And it can be by doubly telecentric mirror
Micropore diameter diaphragm in head unit is arranged at the confocal face of two lenticules.That is, the focus weight of two lenticules
It closes, is inserted into aperture diaphragm in focus overlapping position, just constitutes doubly telecentric lens unit.By the micropore in object space telecentric lens unit
Diameter diaphragm is arranged at the image space focal plane of lenticule.The focal length of two lenticules in doubly telecentric lens unit can be identical,
It can also be different, if they are the same, which can be symmetrical relative to confocal face, i.e., symmetrical relative to micropore diameter diaphragm.If
The focal length of two lenticules is different, which can be asymmetric relative to confocal face.In other words, two lenticules are not
It is symmetrical centered on micropore diameter diaphragm again.
Optionally, in the embodiment of the present application, the micropore diameter diaphragm and object space telecentric lens in doubly telecentric lens unit
Micropore diameter diaphragm in unit can have certain thickness, then micropore diameter diaphragm can be cylindrical hole, may not be cylinder
Hole.For example, the micropore diameter diaphragm in doubly telecentric lens unit can be to top biconial hole, it is micro- in object space telecentric lens array
Aperture diaphragm can be single bellmouth.And the angle of taper to top biconial hole and single bellmouth can be and penetrate thereon
The angle of the rim ray of the lenticule of side converged is identical.It should be understood that either to top biconial hole or single bellmouth
It can be cone, be also possible to triangle, be not construed as limiting herein.
In addition, the embodiment of the present application is also not especially limited the thickness of micropore diameter diaphragm, as long as being less than micropore diameter diaphragm
The distance between lenticule.
It optionally, in the embodiment of the present application, can be by a micro- telecentric lens group pair in micro- telecentric lens array group
Answer a pixel unit of fingerprint sensor.Wherein, this micro- telecentric lens group may include a doubly telecentric lens unit
With an object space telecentric lens unit.Specifically, the object space telecentric lens unit in object space telecentric lens array can be with fingerprint
The pixel unit of sensor corresponds.And doubly telecentric lens array can be corresponded with object space telecentric lens array, it can also
Not correspond.For example, a doubly telecentric lens unit can correspond to one or more object space telecentric lens units, Huo Zheyi
A object space telecentric lens unit can also correspond to multiple doubly telecentric lens units.
Alternatively, a micro- telecentric lens group in micro- telecentric lens array group can be corresponded into the more of fingerprint sensor
A pixel unit.For example, can be by corresponding four pixel units of an object space telecentric lens in object space telecentric lens array.It changes
Sentence is talked about, and the pixel density of fingerprint sensor can be improved one times or higher or fingerprint sensor pixel unit compares telecentricity
The period of lens unit is smaller.
For the telecentric lens of array, the single pixel period need to be related to the resolution requirements of object, such as is set to
Fingerprint identification device under display screen can set the pixel period of telecentric lens to each along the direction plane X/Y of display screen
For 25 μm of sample rates.
Fingerprint identification device provided by the embodiments of the present application, using telecentric lens, can to telecentric lens upper area into
Row fingerprint collecting, and the light of upper vertical regions is focused on to the pixel unit of fingerprint sensor.And by by telecentric lens
Micromation and array, may be implemented the fingerprint imaging in certain distance.For the scheme of periodical through-hole array,
Can be to avoid the light loss of vertical direction, and then the time for exposure of fingerprint sensor can be reduced.Relative to the scheme of lenticule,
The fingerprint identification device can also allow the image deformation of whole system to reduce, which can achieve higher at image quality
Amount and contrast.
Optionally, in the embodiment of the present application, for doubly telecentric camera lens, the diameter range of micropore diameter diaphragm can be with
At 20 μm~1 μm, and the thickness range of the micropore diameter diaphragm can be in 100nm~100 μm, such as its thickness can be 500nm.
For object space telecentric lens, the diameter range of micropore diameter diaphragm to 500nm~20 μm, and the thickness of its micropore diameter diaphragm
Range can be in 100nm~100 μm.Optionally, the face type of each lenticule in telecentric lens can be spherical surface or aspheric
Face, that is to say, that in the telecentric lens group be made of a doubly telecentric lens unit and an object space telecentric lens unit
The face type of lenticule can be entirely that spherical perhaps aspherical types or is also possible to one of them for spherical or aspheric
Face type.Optionally, the radius of curvature of spherical lenticule can be some numerical value between 5 μm~100 μm.And aspherical types are micro-
The radius of curvature of lens is changed with central axis.Optionally, the focal range of aspherical types lenticule can be 5 μm~
Some numerical value between 2000 μm specifically can be some numerical value between 5 μm~500 μm.
Optionally, the distance between doubly telecentric lens array and object space telecentric lens array can be less than or equal to 200 μm.
For example, can be at 1 μm~200 μm.It specifically, can be by the distance between doubly telecentric lens array and object space telecentric lens array
It is set smaller than 50 μm.
Optionally, in the embodiment of the present application, the material of micro- telecentric lens array group can be glass, be also possible to mould
Material, it can also be other transparent materials.In addition, the arrangement mode of micro- telecentric lens array group can be it is rectangular, such as
Square or rectangular is also possible to hexagon, can also be that any other form, the embodiment of the present application do not constitute limit to this
It is fixed.
Optionally, as shown in fig. 7, the fingerprint identification device 200 of the embodiment of the present application can also include filter plate, for pair
The optical signal of finger reflection is filtered.The filter plate can be below display screen between fingerprint sensor, for example, can set
It sets between fingerprint sensor and micro- telecentric lens array group.It should be understood that in specific implementation, the position of the filter plate not office
Limit also can be set between micro- telecentric lens array group and display screen in the lower section of micro- telecentric lens array group, that is, be located at micro-
The top of telecentric lens array group；Alternatively, may include two layers of filter plate, the two is separately positioned on micro- telecentric lens array group
Above and below.In other alternative embodiments, which also be can be set inside micro- telecentric lens array group, example
Such as, it is arranged between doubly telecentric lens array and object space telecentric lens array, possibly even dispenses, the application does not make this
Limitation.
It should be understood that filter plate can be used to reduce the undesirable bias light in fingerprint induction, to improve fingerprint sensor
Optical sensor to the light received.It is long that the filter plate specifically can be used for filtering out ambient light wave, for example, near infrared light and portion
The feux rouges etc. divided.In another example blue light or some blue light.For example, in the energy of light of human finger's absorbing wavelength lower than 580nm
Major part, if one or more optical filter or optical filtering coating can be designed as wavelength-filtered from 580nm to red
Outer light can then greatly reduce influence of the environment light to the optical detection in fingerprint induction.
Optionally, which can be infrared cutoff optically filtering piece.
Fig. 8 shows the schematic diagram of fingerprint identification device provided by the embodiments of the present application.When the fingerprint recognition fills
It sets when being applied to electronic equipment (such as smart phone), as shown in figure 8, the lower surface of cover sheet 310 and display screen 320 is upper
Surface fitting, the fingerprint identification device 330 can be fixed at the lower section of the display screen 320, the fingerprint identification device 330
Lower surface is welded and fixed with flexible circuit board 350.And exist between the fingerprint identification device 330 and the display screen 320
Gap 390.As a kind of optionally implementation, which can be by being fixedly connected in terminal device
The lower section for being mounted on the display screen 320 is realized on the easily disassembled device in portion, such as fingerprint identification device 330 can be installed
In the lower surface of center 370, which can be used as the fixation between the fingerprint identification device 330 and the display screen 320
The upper surface of frame, the center 370 can be bonded with the lower surface edge part of the display screen 320 by foam gum 360.In this
Frame 370 is set to the frame among display screen 320 and rear cover and for carrying internal various assemblies, and internal various assemblies include
But it is not limited to battery, mainboard, camera, winding displacement, various inductors, microphone, earpiece etc. components.As a result, the fingerprint
Identification device 330 and the display screen 320 are full decoupled, and damage should when avoiding installation or dismantling the fingerprint identification device 330
Display screen 320.
Alternatively, which also may be mounted between display screen 320 and center 370, and with it is aobvious
There is gap between display screen 320.For example, fingerprint identification device 330 can be mounted on to the upper surface of center 370.From without
The various components for avoiding electronic equipment internal, for example, the fingerprint identification device and battery are on the thickness direction of electronic equipment
It can be overlapped, so that the placement position of fingerprint identification device is no longer limited.
Optionally, which can be greater than or equal to 600 μm at a distance from 320 lower section of display screen.Meet
The safe distance that fingerprint identification device 330 and display screen 320 are installed, will not cause device to lose because vibrating or falling.
The center 370 can specifically be made of metal or alloy material, it might even be possible to be made of plastic material, this feelings
Under condition, which can even be integrally formed with the frame of electronic equipment, and so-called integrated molding is exactly internal center and frame
It is an entirety.For example, frame can be a metal welt, or the painting of one layer of metalloid can be plated on center
Material.Further, which can also be compound center, take the mobile phone as an example, and center 370 includes inner central frame 1 and outer central frame 2,
Inner central frame 1 is for carrying mobile phone components, and for outer central frame 2 outside inner central frame 1,2 outer of outer central frame is equipped with mobile phone key, inner central frame 1
It is integrated with outer central frame 2.Since mobile phone center is designed to that inner central frame and outer central frame, interior outer central frame are integrated into an entirety,
It is outer central frame abrasion first, due to there was only key on outer central frame, replacement outer central frame is simple and convenient, at low cost when mobile phone is impacted；
It is possible to further which resilient material is arranged between interior outer central frame, due to interior outer central frame under the compression of elastic layer elastic force phase
To fixation, therefore, when outer central frame absorbs impact power, elastic layer can reduce the impact to inner central frame.
Optionally, one layer of foam can be set in the lower section of display screen 320, is filled below display screen 320 with fingerprint recognition
Closed environment can be formed by setting between 330, can achieve shading, dust-proof requirement with this.And in the peace of fingerprint identification device 330
Fingerprint identification device 330 can be enabled to receive the optical signal through display screen 320 foamed cotton layer aperture at holding position.
When finger is put in 320 top of display screen lighted, finger will reflect the light of the sending of display screen 320, this reflected light can penetrate aobvious
Display screen.Fingerprint is a diffuse reflector, and reflected light all exists in all directions.Using specific optical path, connect fingerprint sensor only
The light for receiving vertical direction, can calculate fingerprint by algorithm.
The embodiment of the present application also provides a kind of electronic equipment, which includes the fingerprint in above-mentioned various embodiments
Identification device and display screen, the fingerprint identification device are located at the lower section of display screen.Further, during which further includes
Frame, the fingerprint identification device can be fixed on the center.
Fig. 9 is the schematic block diagram according to electronic equipment 400 provided by the embodiments of the present application.Electronic equipment shown in Fig. 9
400 include: radio frequency (Radio Frequency, RF) circuit 410, memory 420, other input equipments 430, display screen 440,
The components such as sensor 450, voicefrequency circuit 460, I/O subsystem 470, processor 480 and power supply 490.Those skilled in the art
It is appreciated that electronic devices structure shown in Fig. 7 does not constitute the restriction to electronic equipment, may include than illustrate it is more or
Less component perhaps combines certain components and perhaps splits certain components or different component layouts.Ability field technology
Personnel are understood that display screen 440 belongs to user interface (User Interface, UI), and electronic equipment 400 may include ratio
Diagram or less user interface.
It is specifically introduced below with reference to each component parts of the Fig. 9 to electronic equipment 400:
RF circuit 410 can be used for receiving and sending messages or communication process in, signal sends and receivees, particularly, by base station
After downlink information receives, handled to processor 480；In addition, the data for designing uplink are sent to base station.In general, RF circuit packet
Include but be not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise
Amplifier, LNA), duplexer etc..In addition, RF circuit 410 can also be communicated with network and other equipment by wireless communication.
Memory 420 can be used for storing software program and module, and processor 480 is stored in the software journey of memory 420 by operation
Sequence and module, thereby executing the various function application and data processing of electronic equipment 400.Memory 420 can mainly include
Storing program area and storage data area, wherein storing program area can application journey needed for storage program area, at least one function
Sequence (such as sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses institute according to electronic equipment 400
Data (such as audio data, phone directory etc.) of creation etc..In addition, memory 420 may include high-speed random access memory,
It can also include nonvolatile memory, a for example, at least disk memory, flush memory device or other volatile solid-states are deposited
Memory device.
Other input equipments 430 can be used for receiving the number or character information of input, and generate and electronic equipment 400
User setting and the related signal input of function control.Specifically, other input equipments 430 may include but be not limited to secondary or physical bond
(light mouse is that do not show can for disk, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick, light mouse
Depending on the touch sensitive surface exported, or the extension of touch sensitive surface formed by screen) etc. one of or it is a variety of.Its
He is connected input equipment 430 with other input device controls devices 471 of I/O subsystem 470, in other equipment input controller
Signal interaction is carried out with processor 480 under 471 control.
Display screen 440 can be used for showing information input by user or the information and electronic equipment 400 that are supplied to user
Various menus, can also receive user input.Specific display screen 440 can be touch screen, it may include display panel 441,
And touch panel 442.Touch panel 442 can cover display panel 441, and user can be according in the display of display panel 441
Hold (the display content includes but is not limited to soft keyboard, virtual mouse, virtual key, icon etc.), on display panel 441
It on the touch panel 442 of covering or is nearby operated, after touch panel 442 detects operation on it or nearby, is led to
It crosses I/O subsystem 470 and sends processor 480 to determine that user inputs, be followed by subsequent processing device 480 according to user's input and pass through I/O
Subsystem 470 provides corresponding visual output on display panel 441.Although in fig. 8, touch panel 442 and display panel
441 be the input and input function for realizing electronic equipment 400 as two independent components, but in certain embodiments,
Can be integrated by touch panel 442 and display panel 441 and that realizes electronic equipment 400 output and input function.
Electronic equipment 400 may also include at least one sensor 450, for example, the sensor 450 can be positioned at display screen
Fingerprint sensor under 440 or in display screen 440, that is, the fingerprint identification device in the embodiment of the present application.
Voicefrequency circuit 460, loudspeaker 461, microphone 462 can provide the audio interface between user and electronic equipment 400.
Signal after the audio data received conversion can be transferred to loudspeaker 461, be converted to by loudspeaker 461 by voicefrequency circuit 460
Voice signal output；On the other hand, the voice signal of collection is converted to signal by microphone 462, after being received by voicefrequency circuit 460
Audio data is converted to, then audio data is exported to RF circuit 410 to be sent to such as another mobile phone, or by audio data
Output is further processed to memory 420.
I/O subsystem 470 is used to control the external equipments of input and output, may include other equipment input controller 471,
Sensor controller 472, display controller 473.Optionally, other one or more input control apparatus controllers 471 from its
His input equipment 430 receives signal and/or sends signal to other input equipments 430, other input equipments 430 may include
Physical button (push button, rocker buttons etc.), dial, slide switch, control stick, click idler wheel, (light mouse is not aobvious to light mouse
Show the touch sensitive surface visually exported, or the extension of the touch sensitive surface formed by screen).It is worth noting that
Other input control apparatus controllers 471 can be connect with any one or multiple above equipments.In the I/O subsystem 470
Display controller 473 from display screen 440 receive signal and/or to display screen 440 send signal.Display screen 440 detects
After user's input, user's input that display controller 473 will test is converted to and is shown in the user interface on display screen 440
The interaction of object, i.e. realization human-computer interaction.Sensor controller 472 can receive signal from one or more sensor 440
And/or signal is sent to one or more sensor 440.
Processor 480 is the control centre of electronic equipment 400, utilizes various interfaces and the entire electronic equipment of connection
Various pieces by running or execute the software program and/or module that are stored in memory 420, and are called and are stored in
Data in reservoir 420 execute the various functions and processing data of electronic equipment 400, to carry out whole prison to electronic equipment
Control.Optionally, processor 480 may include one or more processing units；Preferably, processor 480 can integrate application processor
And modem processor, wherein the main processing operation system of application processor, user interface and application program etc., modulatedemodulate
Processor is adjusted mainly to handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor
In 480.The processor 480 can be used to execute each step in the application embodiment of the method.
Electronic equipment 400 further includes the power supply 490 (such as battery) powered to all parts, it is preferred that power supply can lead to
Cross power-supply management system and processor 480 be logically contiguous, thus by power-supply management system realize management charging, electric discharge and
The functions such as power consumption.
Although being not shown, electronic equipment 400 can also include camera, bluetooth module etc., and details are not described herein.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic includes at least one embodiment of the application.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.
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 and circuit can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode execute, the specific application and design constraint depending on technical solution.Professional technician can be with
Each specific application is used different methods to achieve the described function, but this realization is it is not considered that exceed this Shen
Range please.
In several embodiments provided herein, it should be understood that disclosed circuit, branch and unit, it can be with
It realizes by another way.For example, branch described above is schematically, for example, the division of the unit, only one
Kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
It is desirably integrated into a branch, or some features can be ignored or not executed.
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 part of the part that contributes to existing technology or the technical solution can embody in the form of software products in other words
Come, which is stored in a storage medium, including some instructions are used so that a computer equipment (can
To be personal computer, server or the network equipment etc.) execute each embodiment the method for the application all or part
Step.And storage medium above-mentioned include: USB flash disk, it is mobile hard disk, read-only memory (Read-Only Memory, ROM), random
Access various Jie that can store program code such as memory (Random Access Memory, RAM), magnetic or disk
Matter.
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 easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be subject to the scope of protection of the claims.
Claims (24)
1. a kind of fingerprint identification device characterized by comprising
Micro- telecentric lens array group receives the optical signal reflected to form via human finger；
Fingerprint sensor is set to the lower section of micro- telecentric lens array group, and based on across micro- telecentric lens array
The optical signal of group is imaged.
2. the apparatus according to claim 1, which is characterized in that micro- telecentric lens array group includes:
Doubly telecentric lens array receives the optical signal in vertical direction；
Object space telecentric lens array, the object space telecentric lens array are set to the lower section of the doubly telecentric lens array, to from
The optical signal that the doubly telecentric lens array transmits is collimated and is focused, and by the optical signal transmission to the fingerprint
Sensor.
3. the apparatus of claim 2, which is characterized in that the doubly telecentric lens array includes multiple doubly telecentric camera lenses
Unit, the doubly telecentric lens unit include the first lenticule, the second lenticule and are arranged in first lenticule and institute
State the first micropore diameter diaphragm between the second lenticule；And/or
The object space telecentric lens array includes multiple object space telecentric lens units, and the object space telecentric lens unit includes third
Lenticule and the second micropore diameter diaphragm being set to below the third lenticule.
4. device according to claim 3, which is characterized in that it is micro- that the first micropore diameter diaphragm is set to described first
At the confocal face of mirror and second lenticule and/or the second micropore diameter diaphragm is set to the picture of the third lenticule
Square focal plane.
5. device according to claim 3, which is characterized in that the focal length of first lenticule and second lenticule
It is identical or different.
6. device according to claim 3, which is characterized in that the diameter range of the first micropore diameter diaphragm be 20 μm~
1 μm, the thickness range of the first micropore diameter diaphragm is 100nm~100 μm；And/or the diameter of the second micropore diameter diaphragm
Range is 500nm~20 μm, and the thickness range of the second micropore diameter diaphragm is 100nm~100 μm.
7. device according to claim 3, which is characterized in that the first micropore diameter diaphragm include to top biconial hole,
The angle of taper and the rim ray of first lenticule angle converged in described pair of top biconial hole are identical and/or described
Second micropore diameter diaphragm includes single bellmouth, the angle of taper of the list bellmouth and the edge-light by the third lenticule
The poly- angle of the congruence is identical.
8. the apparatus of claim 2, which is characterized in that the doubly telecentric lens array and the object space telecentric lens
The distance between array is less than or equal to 200 μm.
9. device according to any one of claim 1 to 8, which is characterized in that in micro- telecentric lens array group
It is micro- between micropore diameter diaphragm in lenticule and micro- telecentric lens array group and/or in micro- telecentric lens array group
It is filled between lenticule in lens and micro- telecentric lens array group by any combination of following transparent medium: air,
Glass and plastics.
10. device according to any one of claim 1 to 8, micro- telecentric lens array group includes that spherical is micro-
Mirror and/or aspherical types lenticule.
11. device according to any one of claim 1 to 8, which is characterized in that in micro- telecentric lens array group
The range of curvature radius of spherical lenticule is 5 μm~100 μm.
12. device according to any one of claim 1 to 8, which is characterized in that in micro- telecentric lens array group
The focal range of aspherical types lenticule is 5 μm~2000 μm.
13. device according to any one of claim 1 to 8, which is characterized in that a pixel of the fingerprint sensor
Unit corresponds to the micro- telecentric lens group of at least one of micro- telecentric lens array group.
14. device according to any one of claim 1 to 8, which is characterized in that described device further include:
Filter plate is set to the top of the fingerprint sensor, is filtered to the optical signal reflected to form by human finger.
15. device according to any one of claim 1 to 8, which is characterized in that when the fingerprint identification device is applied to
When electronic equipment with display screen, the fingerprint identification device is fixed on the lower section of the display screen, and with the display screen
Between there are gaps.
16. device according to claim 15, which is characterized in that the electronic equipment further includes center, and the fingerprint is known
Other device is fixed on the center.
17. device according to claim 15, which is characterized in that foamed cotton layer is provided with below the display screen, it is described
Foamed cotton layer has aperture in the installation site of the fingerprint identification device, so that the fingerprint identification device can be received from institute
State the optical signal of display screen transmission reflected to form via human finger.
18. device according to any one of claim 1 to 8, which is characterized in that the row of micro- telecentric lens array group
Column mode is square or hexagon.
19. device according to any one of claim 1 to 8, which is characterized in that in micro- telecentric lens array group
The material of lenticule is that the lenticule in glass or plastics and/or micro- telecentric lens array group passes through micro-nano technology technique
Or stamping technique is realized.
20. device according to any one of claim 1 to 8, which is characterized in that in micro- telecentric lens array group
Micropore diameter diaphragm is made by micro-nano technology technique or Nano imprint technique.
21. a kind of electronic equipment, which is characterized in that the fingerprint including display screen and as described in any one of claims 1 to 20
Identification device, the fingerprint identification device are set to the lower section of the display screen.
22. electronic equipment according to claim 21, which is characterized in that the fingerprint identification device and the display screen it
Between there are gaps.
23. electronic equipment according to claim 22, which is characterized in that the electronic equipment further includes center, the finger
Line identification device is fixed on the center.
24. electronic equipment according to claim 21, which is characterized in that it is provided with foamed cotton layer below the display screen,
The foamed cotton layer has aperture in the installation site of the fingerprint identification device, so that the fingerprint identification device can receive
The optical signal reflected to form via human finger penetrated from the display screen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921009800.4U CN210142329U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
| CN201822214046.XU CN209168151U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214046.XU CN209168151U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921009800.4U Division CN210142329U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
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| CN209168151U true CN209168151U (en) | 2019-07-26 |
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| CN201921009800.4U Active CN210142329U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
| CN201822214046.XU Active CN209168151U (en) | 2018-12-26 | 2018-12-26 | Fingerprint identification device and electronic equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276337A (en) * | 2019-07-29 | 2019-09-24 | 上海菲戈恩微电子科技有限公司 | Microlens light channel structure and electronic equipment for OLED screen curtain fingerprint recognition |
| 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 |
| WO2020243936A1 (en) * | 2019-06-05 | 2020-12-10 | 深圳市汇顶科技股份有限公司 | Under-screen biometric feature identification apparatus and electronic device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113705281B (en) * | 2020-05-21 | 2023-07-25 | 上海箩箕技术有限公司 | Fingerprint identification device and forming method thereof |
-
2018
- 2018-12-26 CN CN201921009800.4U patent/CN210142329U/en active Active
- 2018-12-26 CN CN201822214046.XU patent/CN209168151U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020243936A1 (en) * | 2019-06-05 | 2020-12-10 | 深圳市汇顶科技股份有限公司 | Under-screen biometric feature identification apparatus and electronic device |
| CN110276337A (en) * | 2019-07-29 | 2019-09-24 | 上海菲戈恩微电子科技有限公司 | Microlens light channel structure and electronic equipment for OLED screen curtain fingerprint recognition |
| 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 |
| 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 |
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