CN110337655A - Fingerprint identification device and electronic equipment - Google Patents
Fingerprint identification device and electronic equipment Download PDFInfo
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- CN110337655A CN110337655A CN201980000384.8A CN201980000384A CN110337655A CN 110337655 A CN110337655 A CN 110337655A CN 201980000384 A CN201980000384 A CN 201980000384A CN 110337655 A CN110337655 A CN 110337655A
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- array
- lenticule
- fingerprint
- identification device
- object space
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
Abstract
It includes: object space telecentric lens array that the embodiment of the present application, which provides a kind of fingerprint identification device and electronic equipment, the fingerprint identification device, is collimated and is focused for receiving the optical signal reflected to form via human finger, and to the optical signal；Fingerprint sensor is set to the lower section of the object space telecentric lens array, and uses separate type assembling structure with the object space telecentric lens array, and the fingerprint sensor is used to be imaged based on the optical signal for passing through the object space telecentric lens array.The fingerprint identification device of the embodiment of the present application can be realized the flexible assembly between object space telecentric lens array and fingerprint sensor.
Description
This application claims in submission on December 26th, 2018 Patent Office of the People's Republic of China, application No. is PCT/CN2018/124007, name
Referred to as the application is hereby incorporated by reference in the priority of the PCT application of " fingerprint identification device and electronic equipment ", entire contents
In.
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.
Summary of the invention
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: object space telecentric lens array, for receiving via people
The optical signal that body finger reflects to form, and the optical signal is collimated and focused；Fingerprint sensor is set to the object space
The lower section of telecentric lens array, and detachable assembling structure is used with the object space telecentric lens array, the fingerprint passes
Sensor is used to be imaged based on the optical signal for passing through the object space telecentric lens array.
In one possible implementation, the object space telecentric lens array and the fingerprint sensor pass through adhesive
Frame patch is fixed.
In one possible implementation, the object space telecentric lens array includes: microlens array, the lenticule
Array includes multiple lenticule units, and the lenticule unit includes one or more pieces lenticules, when the lenticule unit packet
When including lenticule described in multi-disc, the primary optical axis and focus of lenticule described in multi-disc are overlapped；And micropore diameter diaphragm array, setting
At lower section in the microlens array and the image space focal plane positioned at the lenticule unit, the micropore diameter diaphragm array
Including multiple micropore diameter diaphragms, the lenticule unit and the micropore diameter diaphragm are corresponded.
In one possible implementation, the microlens array is located at same transparent with the micropore diameter diaphragm array
Positive and negative two surfaces of substrate, the transparent substrates are glass or plastics.
In one possible implementation, the microlens array and the micropore diameter diaphragm array are located at difference
Substrate；Substrate where the microlens array is transparent substrates, and the transparent substrates are glass or plastics, and described micro-
Pass through any combination of following any transparent medium or following transparent medium between lens array and the micropore diameter diaphragm array
Filling: air, glass and plastics.
In one possible implementation, it is described micro- to correspond at least one for a pixel unit of the fingerprint sensor
Lens unit.
It in one possible implementation, include one or more layers light shield layer, the light shield layer in the transparent substrates
Between the microlens array and the micropore diameter diaphragm array；The light shield layer includes multiple light holes, the light passing
Hole is arranged to that the optical signal above the lenticule unit is allowed to pass through, and the light hole and described micro-
Mirror unit corresponds；When in the transparent substrates including light shield layer described in multilayer, positioned at upper layer the light shield layer it is logical
The diameter of unthreaded hole is greater than the diameter of the light hole of the light shield layer positioned at lower layer.
In one possible implementation, the object space telecentric lens array further includes low refractive index material layer, described
Low refractive index material layer is arranged above the microlens array, for filling and leading up and protecting the microlens array.
In one possible implementation, the micropore diameter diaphragm is set to the focal point of the lenticule unit, institute
It states the optical signal of key light axis direction that the guiding of object space telecentric lens array is parallel to the lenticule unit to pass through, and by institute
Optical signal transmission is stated to the fingerprint sensor.
In one possible implementation, the primary optical axis that the micropore diameter diaphragm deviates from the lenticule unit is set
It sets, the object space telecentric lens array guiding favours the light of the special angle of the key light axis direction of the lenticule unit
Signal passes through, and by the optical signal transmission to the fingerprint sensor.
Optionally, it is 0 μm~50 μ that the micropore diameter diaphragm, which deviates from the distance range of the primary optical axis of the lenticule unit,
m。
In one possible implementation, the range of the duty ratio of the lenticule in the lenticule unit is
50%~100%.
In one possible implementation, the spherical crown of the lenticule is spherical surface or aspherical.
In one possible implementation, the focal range of the lenticule is 10 μm~2000 μm.
In one possible implementation, the diameter range of the micropore diameter diaphragm is 1 μm~10 μm.
In one possible implementation, described device further include: filter plate is set to the upper of the fingerprint sensor
Side, for being filtered to the optical signal reflected to form by human finger.
In one possible implementation, the filter plate is set to the surface of the fingerprint sensor and/or life is set
It is placed in the surface of the object space telecentric lens array.
In one possible implementation, the arrangement mode of the microlens array is square arrangement or hexagon row
Column.
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
The center.
In one possible implementation, the distance between the fingerprint identification device and the display screen are more than or equal to
20μm。
In one possible implementation, the lenticule is realized by micro-nano technology technique or stamping technique.
In one possible implementation, the micropore diameter diaphragm by micro-nano technology technique or Nano imprint technique come
Production.
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, the fingerprint identification device are set to the lower section of the display screen, and institute
State between fingerprint identification device and the display screen that there are gaps.
In one possible implementation, the electronic equipment further includes center, and the fingerprint identification device is fixed on
On the center.
By using telecentric lens, fingerprint collecting can be carried out to telecentric lens upper area, and by the light of upper area
Focus on the pixel unit of fingerprint sensor.And by telecentric lens micromation and array may be implemented in a spacing
From interior fingerprint imaging.It, can be to avoid the light loss of vertical direction, Jin Erke for the scheme of periodical through-hole array
To reduce the time for exposure of fingerprint sensor.Relative to the scheme of lenticule, which can also allow whole system
Image deformation reduces.The fingerprint identification device can achieve higher image quality and contrast.
Meanwhile fingerprint sensor and object space telecentric lens array use detachable assembling structure, ease of assembly, it can be with
Distance between the two is adjusted flexibly, and then available than directly in the scheme of fingerprint sensor surface growth microlens array
Better collimation and image quality.In addition, fingerprint identification device and display screen there are gap, may be implemented to install admittedly in center
Fixed mode, thus it with flexible assembling, can be convenient for changing the object space telecentric lens array of suitable parameters, to reach better imaging
Effect.In addition, light shield layer is arranged in transparent substrates, it is possible to reduce the interference for fingerprint detection such as environment light, stray light, also
The crosstalk of the optical signal between contiguous microlens unit can be reduced, better image quality and effect are further obtained.
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 is the schematic block diagram of object space telecentric lens array in the embodiment of the present application.
Fig. 5 shows the structural schematic of the fingerprint identification device of the embodiment of the present application.
Fig. 6 shows the structural schematic of another fingerprint identification device of the embodiment of the present application.
Fig. 7 shows the structural schematic of another 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 (Photo detector)
Array comprising multiple optical detectors in array distribution, the optical detector can be used as optical sensor as described above
Unit.When the light that finger pressing is at the fingerprint detection region 103, and the display unit in the fingerprint detection region 103 issues
Line occurs 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
Surveying part 134 can be produced on optical imagery chip or image sensor chip.
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 microwell array or microlens array, further pass through
It is received after the filtering of filter layer by the light detecting portion 134, the light detecting portion 134 can be further to receiving
The reflected light 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.Be also possible to be mounted on inside fingerprint identification device as the component relatively independent with light detecting portion 134, be by
The chip exterior where the light detecting portion 134 is arranged in the optical module 132, pastes than optical module 132 as will be described
Side on the chip is closed, or the subelement of the optical module 132 is integrated among said chip.Wherein, described
There are many implementations for the optical waveguide layer of optical module 132.
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 object space telecentricity
Lens array 210 and fingerprint sensor 220, the object space telecentric lens array 210 is for receiving via human finger reflection
It is collimated and is focused at optical signal, and then to the optical signal.The fingerprint sensor 220 is set to the object space telecentric lens
The lower section of array 210, and detachable assembling structure, the fingerprint sensing are used with the object space telecentric lens array 210
Device 220 is used to be imaged based on the optical signal for passing through the object space telecentric lens array 210.The detachable assembly
Structure, which facilitates, carries out assembly and disassembly for fingerprint sensor 220 and object space telecentric lens array 210, can be adjusted flexibly above-mentioned two
The distance between person, so it is available than directly preferably being collimated in the scheme of fingerprint sensor surface growth microlens array
Property and image quality.The embodiment of the present application realizes the detachable assembling structure using frame patch technique, referring specifically to Fig. 5 and
The description of its content.The detachable assembling structure can also be realized by other means, such as mechanical means, as long as energy
Enough easy assembly and disassembly, are adjusted flexibly the distance between fingerprint sensor 220 and object space telecentric lens array 210, this
Apply for embodiment without limitation.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 mainly to illustrate the principle of object space 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
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 reach
As planar imaging, from geometrical relationship it can be seen that at this moment as not near big and far smaller relationship.Exist that is, being equivalent to object
Infinite point.
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 object space telecentric lens after array micromation constitute fingerprint recognition provided by the embodiments of the present application
Object space telecentric lens array 210 in device 200.
As shown in figure 4, object space telecentric lens array 210 may include microlens array 211 and micropore diameter diaphragm array
212.Optionally, microlens array 211 may include multiple lenticule units, and the lenticule unit includes that one or more pieces are micro-
Lens, when the lenticule unit includes lenticule described in multi-disc, the primary optical axis and focus of lenticule described in multi-disc are overlapped.
Micropore diameter diaphragm array 212 is set to the lower section of microlens array 211 and is located at the picture of the lenticule unit
Square focal plane, the micropore diameter diaphragm array 212 include multiple micropore diameter diaphragms, the lenticule unit and the micropore diameter
Diaphragm corresponds.
In the embodiment of the present application, a pixel unit of fingerprint sensor 220 corresponds at least one described lenticule list
Member.Alternatively, the corresponding four lenticule units of a pixel unit of fingerprint sensor 220 can be referred to improving
The pixel array density of line sensor 220.
As a kind of optional embodiment, microlens array 211 and micropore diameter diaphragm array 212 can be worked into same base
On two surfaces of bottom material, it is possible to reduce processing step.I.e. microlens array 211 and micropore diameter diaphragm array 212 are located at same
Positive and negative two surfaces of one transparent substrates, optionally, the transparent substrates are glass or plastics.
As an alternative embodiment, microlens array 211 and micropore diameter diaphragm array 212 can be located at not
With in substrate, micropore diameter diaphragm array 212 is set to the lower section of microlens array 211 again later.Optionally, microlens array
Substrate where 211 can be transparent substrates, such as glass or plastics, and the substrate where micropore diameter diaphragm array 212 can be with
For transparent substrates, or other nontransparent base materials, the present embodiment does not limit.Optionally, microlens array 211 with
It can be filled by any combination of following any transparent medium or following transparent medium between micropore diameter diaphragm array 212: empty
Gas, glass and plastics.
Optionally, the lenticule in the embodiment of the present application can be realized using micro-nano technology technique or stamping technique, and this
Micropore diameter diaphragm in application embodiment can be made by micro-nano technology technique or Nano imprint technique, and then may be implemented
By object space telecentric lens miniaturized arrays.
For the object space telecentric lens of array, the single pixel period need to be related to the resolution requirements of object, such as sets
The fingerprint identification device being placed under display screen can set the pixel period of telecentric lens to along the plane side X/Y of display screen
To respectively be 25 μm of sample rates.
Fingerprint identification device provided by the embodiments of the present application can be to area above telecentric lens using object space telecentric lens
Domain carries out fingerprint collecting, and the light of upper area 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, the range of the duty ratio of the lenticule in the lenticule unit can be with
It is 50%~100%, the spherical crown of the lenticule can be spherical surface or aspherical, and the focal range of the lenticule can be
10 μm~2000 μm.Optionally, the diameter range of the micropore diameter diaphragm can be 1 μm~10 μm.
Fig. 5 shows the structural schematic of the fingerprint identification device of the embodiment of the present application.When fingerprint identification device 200 is answered
When for electronic equipment with display screen, fingerprint identification device 200 is fixed on the lower section of the display screen, and with the display
There are gaps between screen.When the electronic equipment includes center, fingerprint identification device 200 can also be fixed on the center
On.
Such as the content that Fig. 2 is introduced, fingerprint identification device 200 is in addition to may include object space telecentric lens array 210, fingerprint
Except sensor 220, optionally, fingerprint identification device 200 can also include filter plate 214, for reflecting by human finger
The optical signal formed is filtered.Filter plate 214 can be set the top of fingerprint sensor 220 and the display screen it
Between, for example, as shown in figure 5, filter plate 214 can be set between object space telecentric lens array 210 and fingerprint sensor 220.
Optionally, filter plate 214 can also be grown directly upon the surface of the fingerprint sensor 220 by growth technique.
It should be understood that the position of filter plate 214 is not limited in object space telecentric lens array 210 and refers in specific implementation
It between line sensor 220, also can be set between object space telecentric lens array 210 and the display screen, that is, be located at the object
The top of square telecentric mirror head array 210, optionally, filter plate 214 can be grown directly upon object space telecentric mirror by growth technique
The upper surface of head array 210.As a kind of optional embodiment, fingerprint identification device 200 can also include two layers of filter plate
214, it is separately positioned on above and below object space telecentric lens array 210.
In other alternative embodiments, filter plate 214 is not limited to be configured using growth technique, can also lead to
The top that fingerprint sensor 220 is arranged in other techniques, such as evaporation process are crossed, the present embodiment does not limit.
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.
In Fig. 2 detailed description, it has been explained that fingerprint sensor 220 and object space telecentric lens array 210 are adopted
With detachable assembling structure, the implementation in Fig. 5, which is illustrated using frame patch technique, realizes the detachable assembly knot
Structure.Specifically, four sides are fixed by frame rubberizing 213 between fingerprint sensor 220 and object space telecentric lens array 210,
Frame rubberizing 213 can be ultrathin double-face glue, be also possible to other adhesives with bond property, as long as can be by fingerprint sensing
Device 220 and object space telecentric lens array 210 carry out frame patch and fix, and the present embodiment does not limit.
By the agency of mistake, object space telecentric lens array 210 may include microlens array 211 and micropore diameter light in Fig. 4
Late array 212, Fig. 5 show a kind of optional embodiment, i.e. microlens array 211 and micropore diameter diaphragm array 212 in the middle
In positive and negative two surfaces of same transparent substrates.Meanwhile this embodiment further shows micropore diameter diaphragm arrays 212 positioned at micro-
At the image space focal plane of mirror unit 2110, and micropore diameter diaphragm 2120 is set to the focal point of lenticule unit 2110, therefore
The optical signal that object space telecentric lens array 210 can guide the key light axis direction for being parallel to lenticule unit 2110 passes through.It is optional
Ground, micropore diameter diaphragm 2120 can also deviate from the 2110 primary optical axis setting of lenticule unit, at this point, object space telecentric lens battle array
Column 210, which can guide, to be favoured the optical signal of the special angle of key light axis direction of lenticule unit 2110 and passes through, here micropore
What diameter diaphragm 2120 deviated from the distance of the primary optical axis of the lenticule unit 2110 may range from 0 μm~50 μm, optionally,
Micropore diameter diaphragm 2120 is deviated from and is arranged at 5 μm of primary optical axis of the lenticule unit 2110.
Optionally, in the embodiment of the present application, the material of object space telecentric lens array 210 can be glass, be also possible to
Plastics can also be other transparent materials.In addition, the arrangement mode of the microlens array 211 can be square arrangement,
It can be hexagonal array, can also be that any other form, the embodiment of the present application do not constitute restriction to this.Work as microlens array
When 211 use square arrangement mode, the duty ratio of the lenticule can be up to 100%.
Optionally, as shown in fig. 6, object space telecentric lens array 210 can also include low refractive index material layer 215, low folding
The top that microlens array 211 is arranged in rate material layer 215 is penetrated, for filling and leading up and protecting microlens array 211, and is still protected
The image space focal plane for demonstrate,proving the lenticule unit 2110 is overlapped with micropore diameter diaphragm array 212.Using low refractive index material layer 215
The surface of microlens array 211 is filled and led up, so that when entire fingerprint identification device 200 is applied to electronic equipment or other equipment more
Add and is easily installed.It is alternatively possible to use the techniques such as growth, coating, immersion, vapor deposition or other techniques by low-index material
Layer 215 is set to the top of microlens array 211, and the present embodiment does not limit.It is understood that working as microlens array 211
Top when being provided with low refractive index material layer 215, filter plate 214 is set to the surface of object space telecentric lens array 210 in fact
Matter is the surface that filter plate 214 is set to the low refractive index material layer 215.
It should be noted that low refractive index material layer 215 illustrated in fig. 6 is only schematical, low refractive index material layer
After 215 fill and lead up microlens array 211, there can also be certain thickness, the thickness is set, this implementation according to actual conditions
Example is without limitation.
Fig. 7 is the structural schematic of another fingerprint identification device of the embodiment of the present application.With fingerprint illustrated in fig. 6
It include two layers of light shield layer 216 in transparent substrates in Fig. 7, i.e., the described light shield layer 216 is located at micro- unlike identification device
Between lens array 211 and micropore diameter diaphragm array 212.Optionally, one layer of shading can also be only included in the transparent substrates
Layer 216 or including multilayer light shield layer 216.Light shield layer 216 is arranged to allow above the lenticule unit 2110
The optical signal passes through, and includes multiple light holes in each layer of light shield layer 216, and the light hole and the lenticule
Unit corresponds.Optionally, as shown in fig. 7, the diameter for being located at the light hole of the light shield layer 216 on upper layer is greater than positioned at lower layer
The diameter of the light hole of light shield layer 216.Optionally, the center of light hole described here is located at the primary optical axis of lenticule unit 2110
On.Therefore the optical signal that object space telecentric lens array 210 can guide the key light axis direction for being parallel to lenticule unit 2110 leads to
It crosses.By the way that light shield layer 216 is arranged in transparent substrates, it is possible to reduce the interference for fingerprint detection such as environment light, stray light, also
The crosstalk of the optical signal between contiguous microlens unit 2110 can be reduced, better image quality and effect are further obtained
Fruit.
As a kind of optional embodiment, the light hole of light shield layer 216 can also deviate together with the micropore diameter diaphragm
It is arranged in the primary optical axis of the lenticule unit 2110, object space telecentric lens array 210 is guided and favours lenticule
The optical signal of the special angle of the key light axis direction of unit 2110 passes through,
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 electronic equipment
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 of electronic equipment internal are avoided, for example, the thickness direction of the fingerprint identification device 330 and battery in electronic equipment
On 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 20 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 320.Fingerprint is a diffuse reflector, and reflected light all exists in all directions.Using specific optical path, make fingerprint sensor only
The light for receiving specific 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. 8
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. 9, 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 (25)
1. a kind of fingerprint identification device characterized by comprising
Object space telecentric lens array is carried out for receiving the optical signal reflected to form via human finger, and to the optical signal
Collimation and focusing；
Fingerprint sensor is set to the lower section of the object space telecentric lens array, and adopts with the object space telecentric lens array
With detachable assembling structure, the fingerprint sensor is used for based on the optical signal for passing through the object space telecentric lens array
It is imaged.
2. the apparatus according to claim 1, which is characterized in that the object space telecentric lens array and the fingerprint sensor
It is pasted and is fixed by adhesive frame.
3. the apparatus of claim 2, which is characterized in that the object space telecentric lens array includes:
Microlens array, the microlens array include multiple lenticule units, and the lenticule unit includes one or more pieces
Lenticule, when the lenticule unit includes lenticule described in multi-disc, the primary optical axis and focus counterpoise of lenticule described in multi-disc
It closes；And
Micropore diameter diaphragm array is set to the lower section of the microlens array and puts down positioned at the image space coke of the lenticule unit
At face, the micropore diameter diaphragm array includes multiple micropore diameter diaphragms, and the lenticule unit and the micropore diameter diaphragm are one by one
It is corresponding.
4. device according to claim 3, which is characterized in that the microlens array and the micropore diameter diaphragm array position
In positive and negative two surfaces of same transparent substrates, the transparent substrates are glass or plastics.
5. device according to claim 3, which is characterized in that the microlens array and the micropore diameter diaphragm array point
It Wei Yu not different base；
Substrate where the microlens array is transparent substrates, and the transparent substrates are glass or plastics, and described micro-
Pass through any combination of following any transparent medium or following transparent medium between lens array and the micropore diameter diaphragm array
Filling: air, glass and plastics.
6. device according to claim 4 or 5, which is characterized in that a pixel unit of the fingerprint sensor is corresponding
At least one described lenticule unit.
7. device according to claim 6, which is characterized in that it include one or more layers light shield layer in the transparent substrates,
The light shield layer is between the microlens array and the micropore diameter diaphragm array；
The light shield layer includes multiple light holes, and the light hole is arranged to allow the institute above the lenticule unit
It states optical signal to pass through, and the light hole and the lenticule unit correspond；
When in the transparent substrates including light shield layer described in multilayer, the diameter positioned at the light hole of the light shield layer on upper layer is big
In the diameter of the light hole for the light shield layer for being located at lower layer.
8. device according to claim 7, which is characterized in that the object space telecentric lens array further includes low-refraction material
The bed of material, the low refractive index material layer is arranged above the microlens array, for filling and leading up and protecting the microlens array.
9. device according to claim 8, which is characterized in that the micropore diameter diaphragm is set to the lenticule unit
The optical signal of focal point, the key light axis direction that the object space telecentric lens array guiding is parallel to the lenticule unit is logical
It crosses, and by the optical signal transmission to the fingerprint sensor.
10. device according to claim 8, which is characterized in that the micropore diameter diaphragm deviates from the lenticule unit
Primary optical axis setting, object space telecentric lens array guiding favours the specific angle of the key light axis direction of the lenticule unit
The optical signal of degree passes through, and by the optical signal transmission to the fingerprint sensor.
11. device according to claim 10, which is characterized in that the micropore diameter diaphragm deviates from the lenticule unit
Primary optical axis distance range be 0 μm~50 μm.
12. device according to claim 9 or 10, which is characterized in that the lenticule in the lenticule unit
The range of duty ratio is 50%~100%.
13. device according to claim 12, which is characterized in that the spherical crown of the lenticule is spherical surface or aspherical.
14. device according to claim 13, which is characterized in that the focal range of the lenticule is 10 μm~2000 μ
m。
15. device according to claim 14, which is characterized in that the diameter range of the micropore diameter diaphragm is 1 μm~10 μ
m。
16. device according to claim 15, which is characterized in that described device further include:
Filter plate is set to the top of the fingerprint sensor, for the optical signal reflected to form by human finger into
Row filtering.
17. device according to claim 16, which is characterized in that the filter plate is set to the table of the fingerprint sensor
Face and/or the surface for being set to the object space telecentric lens array.
18. device according to claim 17, which is characterized in that the arrangement mode of the microlens array is square row
Column or hexagonal array.
19. device according to claim 18, which is characterized in that when the fingerprint identification device is applied to have display screen
Electronic equipment when, the fingerprint identification device is fixed on the lower section of the display screen, and between existing between the display screen
Gap.
20. device according to claim 19, which is characterized in that the electronic equipment further includes center, and the fingerprint is known
Other device is fixed on the center.
21. device according to claim 20, which is characterized in that between the fingerprint identification device and the display screen
Distance is more than or equal to 20 μm.
22. device according to claim 21, which is characterized in that the lenticule passes through micro-nano technology technique or pressing mold work
Skill is realized.
23. device according to claim 22, which is characterized in that the micropore diameter diaphragm is by micro-nano technology technique or receives
Rice printing technology makes.
24. a kind of electronic equipment, which is characterized in that the fingerprint including display screen and as described in any one of claim 1 to 23
Identification device, the fingerprint identification device is set to the lower section of the display screen, and the fingerprint identification device is shown with described
There are gaps between display screen.
25. electronic equipment according to claim 24, which is characterized in that the electronic equipment further includes center, the finger
Line identification device is fixed on the center.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/124007 WO2020132974A1 (en) | 2018-12-26 | 2018-12-26 | Fingerprint recognition apparatus and electronic device |
| CNPCT/CN2018/124007 | 2018-12-26 | ||
| PCT/CN2019/077370 WO2020133703A1 (en) | 2018-12-26 | 2019-03-07 | Fingerprint recognition device and electronic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110337655A true CN110337655A (en) | 2019-10-15 |
| CN110337655B CN110337655B (en) | 2023-05-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980000384.8A Active CN110337655B (en) | 2018-12-26 | 2019-03-07 | Fingerprint identification device and electronic equipment |
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| CN (1) | CN110337655B (en) |
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| CN111291710B (en) * | 2020-02-25 | 2024-01-23 | 京东方科技集团股份有限公司 | Fingerprint identification module and display device |
| CN111788575A (en) * | 2020-02-25 | 2020-10-16 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
| CN111291710A (en) * | 2020-02-25 | 2020-06-16 | 京东方科技集团股份有限公司 | Fingerprint identification module and display device |
| CN113555377A (en) * | 2020-04-26 | 2021-10-26 | 上海箩箕技术有限公司 | Light filtering assembly and forming method thereof |
| FR3125920A1 (en) * | 2021-07-27 | 2023-02-03 | Stmicroelectronics (Grenoble 2) Sas | Optical sensor |
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