CN206331451U - Fingerprint identification module and terminal - Google Patents
Fingerprint identification module and terminal Download PDFInfo
- Publication number
- CN206331451U CN206331451U CN201621450568.4U CN201621450568U CN206331451U CN 206331451 U CN206331451 U CN 206331451U CN 201621450568 U CN201621450568 U CN 201621450568U CN 206331451 U CN206331451 U CN 206331451U
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- Prior art keywords
- identification module
- fingerprint identification
- cover plate
- ink
- light source
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Abstract
The utility model discloses a kind of fingerprint identification module and terminal, fingerprint identification module includes optical fingerprint sensor, cover plate and light source.Cover plate covers optical fingerprint sensor.Light source described in light is arranged at the lower section of the cover plate and positioned at the periphery side of the optical fingerprint sensor, the light source and the optical fingerprint sensor interval setting.In above-mentioned fingerprint identification module, the opticpath of light source outgoing is simple, and fiber-loss is less, is conducive to improving the accuracy rate of fingerprint recognition.
Description
Technical field
The utility model is related to field of electronic devices, more particularly to a kind of fingerprint identification module and terminal.
Background technology
In existing optical finger print fingerprint identification module, light source is located at the lower section of optical fingerprint sensor, light source outgoing
Light needs to first pass through after optical fingerprint sensor, could be projected from the cover plate being covered on optical fingerprint sensor, to reach
The finger of user.Light reflexes to fingerprint sensor from finger, so as to realize fingerprint recognition.Above-mentioned optical finger print fingerprint recognition
In module, because the path of the light of light source outgoing is more complicated, light is easily lost, and causes the accuracy rate of fingerprint recognition relatively low.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried
For a kind of fingerprint identification module and a kind of terminal.
The fingerprint identification module of the utility model embodiment includes optical fingerprint sensor, cover plate and light source.Cover plate covers
Cover the optical fingerprint sensor.The light source is arranged at the lower section of the cover plate and positioned at the week of the optical fingerprint sensor
Edge side, the light source and the optical fingerprint sensor interval setting.
In above-mentioned fingerprint identification module, the light of light source outgoing needs not move through the reachable lid in optical fingerprint sensor rear
Plate, path is simple, and fiber-loss is less, is conducive to improving the accuracy rate of fingerprint recognition.
In some embodiments, the fingerprint identification module includes ink layer, and the ink layer refers to positioned at the optics
Between line sensor and the cover plate, the ink layer includes nontransparent ink and the printing opacity being arranged in the nontransparent ink
Ink, the clear ink is located at the periphery side of the optical fingerprint sensor, and defines transparent area with the cover plate
Domain, the light of the light source outgoing be used for through the transmission region with outgoing to the fingerprint identification module outside.
In some embodiments, the light source outgoing is to the light of the transmission region and the thickness direction of the cover plate
Between angle be 50-60 °.
In some embodiments, the clear ink is elongated, and the width of the clear ink is 0.8-1mm, long
Spend for 6-10mm.
In some embodiments, the clear ink is elongated, and the width of the clear ink is 0.8mm, length
For 6-10mm.
In some embodiments, the thickness of the clear ink is less than or equal to 20 μm.
In some embodiments, the clear ink includes top surface and two sides being connected with the top surface, described
Top surface is fitted with the lower surface of the cover plate, and described two sides are all connected with the top surface, and described two sides be arranged in parallel, often
Angular range between the individual side and the lower surface of the cover plate is 30-60 °.
In some embodiments, the angle between each side and the lower surface of the cover plate, the light source goes out
The minimum angle being incident upon between the light of the transmission region and the thickness direction of the cover plate is identical.
In some embodiments, the cover plate includes fingerprint identification area corresponding with the optical fingerprint sensor, institute
It is 3-5mm to state the distance between fingerprint identification area and clear ink scope.
In some embodiments, the decorative layer in the nontransparent ink is arranged on, the decorative layer is located at including painting
The lower surface of the cover plate, the decorative layer is symmetric with the clear ink with the center of the fingerprint identification area.
In some embodiments, the fingerprint identification module includes the viscose glue of printing opacity, and the viscose glue is bonded the cover plate
And the optical fingerprint sensor.
In some embodiments, the fingerprint identification module includes the flexible circuit for connecting the optical fingerprint sensor
Plate, the light source is arranged on the flexible PCB.
In some embodiments, the fingerprint identification module includes being arranged at the optical fingerprint sensor and described
Anti-dazzling screen between light source.
The terminal of the utility model embodiment includes the fingerprint identification module described in any of the above embodiment.
In above-mentioned terminal, the light of light source outgoing directly can reach cover plate to project from cover plate so that the path of light
Simply, fiber-loss is less, is conducive to improving the accuracy rate of fingerprint recognition.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage are from description of the accompanying drawings below to embodiment is combined
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the fingerprint identification module of the utility model embodiment；
Fig. 2 is the schematic top plan view of Fig. 1 fingerprint identification module；
Fig. 3 is the floor map of the terminal of the utility model embodiment.
Main element symbol description：
Fingerprint identification module 100；
Cover plate 10, lower surface 122, upper surface 124, transmission region 11, ink layer 13, clear ink 112, nontransparent ink
14th, fingerprint identification area 16, decorative layer 18；
Sensor 20；
Light source 30；
Viscose glue 40；
Flexible PCB 50；
Anti-dazzling screen 60；
Terminal 200.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
It is easy to description the utility model and simplifies describe, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ",
" second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in
Between medium be indirectly connected to, can be connection or the interaction relationship of two elements of two element internals.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, can also not be direct contact including the first and second features but logical
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First is special
Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.
In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition is for purposes of simplicity and clarity, discussed various embodiments itself not to be indicated
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model is provided, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Sensed referring to Fig. 1, the fingerprint identification module 100 of the utility model embodiment includes cover plate 10, optical finger print
Device 20 and light source 30.
Cover plate 10 covers optical fingerprint sensor 20.Light source 30 is arranged at the lower section of cover plate 10 and positioned at optical finger print sensing
The periphery side of device 20.Light source 30 and the interval setting of optical fingerprint sensor 30.
In above-mentioned fingerprint identification module 100, the light of the outgoing of light source 30 is needed not move through can after optical fingerprint sensor 20
Cover plate 10 is reached, path is simple, and fiber-loss is less, be conducive to improving the accuracy rate of fingerprint recognition.
Specifically, reflected after the light penetration cover plate 10 of the outgoing of light source 30 on the fingerprint strain line of finger surface, finger
Ridge line reflects less light to optical fingerprint sensor 20, and Gu Wen reflects more light to optical fingerprint sensor 20.
Optical fingerprint sensor 20 receives the light of finger surface fingerprint reflection, and handles shape according to the intensity of transmitting light
Into finger print pattern, optical fingerprint sensor 20 contrasts obtained finger print pattern and predetermined pattern, refers to so as to realize
The function of line identification.
Light source 30 is, for example, the isometric less illuminator of light emitting diode (Light Emitting Diode, LED), light
Source 30 can send visible ray, can also send black light.The wavelength for the visible ray that light source 30 is sent for example, 550nm, can not
It can be infrared ray to see light, and ultrared wavelength is, for example, 850nm.
Fingerprint identification module 100 can be applied to terminal, so that terminal realizes the function of optical finger print identification.
Incorporated by reference to Fig. 2, in some embodiments, fingerprint identification module 100 includes ink layer 13, and ink layer 13 is located at light
Learn between fingerprint sensor 20 and cover plate 10, ink layer 13 includes nontransparent ink 14 and is arranged on saturating in nontransparent ink 14
Ink 112, clear ink 112 is located at the periphery side of optical fingerprint sensor 20, and defines transmission region with cover plate 10
11, the light of the outgoing of light source 30 be used for through transmission region 11 with outgoing to fingerprint identification module 100 outside.
Thus, transmission region 11 can ensure enough light penetration cover plates 10 to reach the finger of user, it is easy to improve
The accuracy rate of fingerprint recognition.
Specifically, the upper surface 124 of cover plate 10 is the appearance of fingerprint identification module 100, towards user.User can be
Corresponding gesture operation is carried out on upper surface 124, the operation such as clicking on, press or slide realizes corresponding work(with control terminal
Energy.
The material of cover plate 10 can be made up of light transmissive materials such as glass, ceramics or sapphires.Because cover plate 10 is used as terminal
Input part, cover plate 10 is often subject to collide or the contact such as scratches.For example, when terminal is put into pocket by user, cover plate 10 can
It can be scratched and damage by the key in user's pocket.
Therefore, the material of cover plate 10 can be using the larger material of hardness, such as sapphire material above.Certainly,
It can prevent that cover plate 10 is scraped off in the laminating protection board of upper surface 124 of cover plate 10.
Ink layer 13 applies the lower surface 122 for being located at cover plate 10, and the color of nontransparent ink 14 can be white, black or indigo plant
The colors such as color.It is appreciated that the color of nontransparent ink 14 can specifically be set according to actual conditions.
Nontransparent ink 14 can not only meet demand of the user to the terminal of different colours, can also cover terminal inner
Structure with reach beautification electronic installation effect.
Clear ink 112 is, for example, infrared ray ink (IR ink), and IR ink can make it that the light of the outgoing of light source 30 is
During infrared ray, it is ensured that the light transmittance of clear ink 112 is more than 30%, thus ensure to have abundance light reach the finger of user with
Carry out fingerprint recognition.
In one example, the outgoing of light source 30 to transmission region 11 light and cover plate 10 thickness direction between angle
α is 50-60 °.
Thus, when angle α is 50-60 °, while both having ensured enough light penetration cover plates 10, light source 30 can be made again
Maintained a certain distance between optical fingerprint sensor 20, be conducive to the layout between light source 30 and optical fingerprint sensor 20
Set.
In some embodiments, clear ink 112 is elongated, and the width W of clear ink 112 is 0.8-1mm, length
L is 6-10mm.It is preferred that width W is 0.8mm.
As explained above, when clear ink 112 is infrared ray ink, infrared ray ink is shown as under visible light
Black or the color close with black, such as navy blue.
As previously discussed, nontransparent ink 14 can be white, and infrared ray ink is arranged on the nontransparent ink 14 of white
In, the contrast of color is higher.But, because the size of clear ink 112 is smaller so that even if nontransparent ink 14 is white
Color, the eyes also more difficult presence for perceiving clear ink 112 of user solves in the conventional technology, uses the non-of white
The technical problem of optical finger print identification can not be realized during bright ink 14.
In addition, during parameter area of the clear ink 112 more than, it is ensured that reached after enough light penetration cover plates 10
The finger of user.
In order to ensure the light transmittance of clear ink 112, in some embodiments, the thickness of clear ink 112 be less than or
Equal to 20 μm.
In some embodiments, clear ink 112 includes top surface 1122 and two sides being connected with top surface 1122
1124.Top surface 1122 is fitted with the lower surface 122 of cover plate 10, and two sides 1124 are all connected with top surface 1122, two sides 1124
It is arranged in parallel, the angle β scopes between each side 1124 and the lower surface 122 of cover plate 10 are 30-60 °.It is preferred that angle β
For 45 °.
Can also be white in the color of nontransparent ink 14 thus, can not only ensure the light transmittance of clear ink 112
When, reduce the contrast between clear ink 112 and nontransparent ink 14, so that human eye is not readily apparent clear ink 112.
In one example, the angle β between each side 1124 and the lower surface 122 of cover plate 10, with the outgoing of light source 30
To transmission region 11 light and cover plate 10 thickness direction between minimum angle αminIt is identical, i.e. β=αmin。
In some embodiments, cover plate 10 includes fingerprint identification area 16 corresponding with optical fingerprint sensor 20, fingerprint
The distance between cog region 16 and clear ink 112 D scopes are 3-5mm.
When fingerprint identification module 100 carries out fingerprint recognition operation, finger is placed on fingerprint identification area 16, light source by user
The light of 30 outgoing is reached fingerprint identification area 16 and is reflected into the surface in the finger of user in optical fingerprint sensor 20, from
And carry out fingerprint recognition.
Fingerprint identification area 16 can be located at the surface of optical fingerprint sensor 20, can also be with optical fingerprint sensor 20
Stagger setting.The shapes such as fingerprint identification area 16 is for example, square, Long Circle or circle.The size of fingerprint identification area 16 can basis
The size setting of the finger of user, for example, the size of fingerprint identification area 16 is less than the size of the finger of user.
In one example, fingerprint identification area 16 is square, and size is 6*4mm, that is to say, that the length of fingerprint identification area 16
Degree can be 6mm, and width can be 4mm.
In some embodiments, ink layer 13 includes the decorative layer 18 being arranged in nontransparent ink 14, decorative layer 18
The lower surface 122 for being located at cover plate 10 is applied, decorative layer 18 is symmetric with clear ink 112 with the center of fingerprint identification area 16.
Thus, the appearance of cover plate 10 can form symmetrical structure so that cover plate 10 is more attractive in appearance.It is appreciated that decoration
Layer 18 is identical with the shape and size of clear ink 112.In one example, when the color of clear ink 112 is black, decoration
The color of layer 18 is also black, so that the appearance formation symmetrical structure of cover plate 10.Decorative layer 18 is, for example, and printing opacity is oily
The material of ink 112 is made.
The distance between upper surface 124 in order to reduce optical fingerprint sensor 20 and cover plate 10, to improve fingerprint recognition
Accuracy rate.In some embodiments, fingerprint identification module 100 includes the viscose glue 40 of printing opacity, the bonding cover plate 10 of viscose glue 40 and
Optical fingerprint sensor 20.Viscose glue 40 is, for example, Optical transparent adhesive (Optically Clear Adhesive, OCA)
Viscose glue 40 can make it that optical fingerprint sensor 20 is difficult to split away off from cover plate 10, improve fingerprint recognition mould
The stability of block 100.
In some embodiments, fingerprint identification module 100 includes flexible PCB 50.Flexible PCB 50 connects optics
Fingerprint sensor 20.
Thus, flexible PCB 50 can will realize that optical fingerprint sensor 20 is communicated with outer member, to realize
Fingerprint recognition is operated.
In some embodiments, fingerprint identification module 100 includes anti-dazzling screen 60, and anti-dazzling screen 60 is arranged at optical finger print biography
Between sensor 20 and light source 30, light source 30 is arranged on flexible PCB 50.It is preferred that the relative two ends of anti-dazzling screen 60 are supported respectively
Lean against on flexible PCB 50 and ink layer 13.
Thus, anti-dazzling screen 60 prevents that the light of light source 30 is directly entered in optical fingerprint sensor 20 and causes fingerprint recognition
Interference.Anti-dazzling screen 60 is, for example, the plastic sheet of black.
Referring to Fig. 3, the fingerprint that the terminal 200 of the utility model embodiment includes described in any of the above embodiment is known
Other module 100.Terminal 200 is, for example, mobile phone or panel computer.
In above-mentioned terminal 200, the light of the outgoing of light source 30 needs not move through the rear of optical fingerprint sensor 20 and reaches cover plate
10, path is simple, and fiber-loss is less, is conducive to improving the accuracy rate of fingerprint recognition.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment of the present utility model or example.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Levy, structure, material or feature can in an appropriate manner be combined in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, one of ordinary skill in the art can manage
Solution：A variety of to the progress of these embodiments can change in the case where not departing from principle of the present utility model and objective, change,
Replace and modification, scope of the present utility model is limited by claim and its equivalent.
Claims (14)
1. a kind of fingerprint identification module, it is characterised in that including：
Optical fingerprint sensor；
Cover the cover plate of the optical fingerprint sensor；With
Light source, the light source is arranged at the lower section of the cover plate and positioned at the periphery side of the optical fingerprint sensor, described
Light source and the optical fingerprint sensor interval setting.
2. fingerprint identification module as claimed in claim 1, it is characterised in that the fingerprint identification module includes ink layer, institute
State ink layer to be located between the optical fingerprint sensor and the cover plate, the ink layer includes nontransparent ink and is arranged on
Clear ink in the nontransparent ink, the clear ink be located at the optical fingerprint sensor periphery side, and with
The cover plate defines transmission region, and the light of the light source outgoing is used for through the transmission region with outgoing to the fingerprint
Outside identification module.
3. fingerprint identification module as claimed in claim 2, it is characterised in that the light of the light source outgoing to the transmission region
Angle between the thickness direction of line and the cover plate is 50-60 °.
4. fingerprint identification module as claimed in claim 2, it is characterised in that the clear ink is elongated, the printing opacity
The width of ink is 0.8-1mm, and length is 6-10mm.
5. fingerprint identification module as claimed in claim 2, it is characterised in that the clear ink is elongated, the printing opacity
The width of ink is 0.8mm, and length is 6-10mm.
6. fingerprint identification module as claimed in claim 2, it is characterised in that the thickness of the clear ink is less than or equal to 20
μm。
7. fingerprint identification module as claimed in claim 2, it is characterised in that the clear ink include top surface and with the top
Two sides of face connection, the top surface is fitted with the lower surface of the cover plate, and described two sides are all connected with the top surface, institute
State two sides to be arranged in parallel, the angular range between each side and the lower surface of the cover plate is 30-60 °.
8. fingerprint identification module as claimed in claim 7, it is characterised in that each side and the lower surface of the cover plate
Between angle, the minimum angle between the light of the light source outgoing to the transmission region and the thickness direction of the cover plate
It is identical.
9. fingerprint identification module as claimed in claim 2, it is characterised in that the cover plate includes sensing with the optical finger print
The distance between the corresponding fingerprint identification area of device, the fingerprint identification area and clear ink scope is 3-5mm.
10. fingerprint identification module as claimed in claim 9, it is characterised in that the ink layer is also described non-including being arranged on
Decorative layer in transparent ink, the decorative layer includes applying the lower surface for being located at the cover plate, the decorative layer and the printing opacity
Ink is symmetric with the center of the fingerprint identification area.
11. the fingerprint identification module as described in claim 1-10 any one, it is characterised in that the fingerprint identification module bag
The viscose glue of printing opacity is included, the viscose glue is bonded the cover plate and the optical fingerprint sensor.
12. the fingerprint identification module as described in claim 1-10 any one, it is characterised in that the fingerprint identification module bag
The flexible PCB for connecting the optical fingerprint sensor is included, the light source is arranged on the flexible PCB.
13. the fingerprint identification module as described in claim 1-10 any one, it is characterised in that the fingerprint identification module bag
Include the anti-dazzling screen being arranged between the optical fingerprint sensor and the light source.
14. a kind of terminal, it is characterised in that including the fingerprint identification module as described in claim 1-13 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621450568.4U CN206331451U (en) | 2016-12-27 | 2016-12-27 | Fingerprint identification module and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621450568.4U CN206331451U (en) | 2016-12-27 | 2016-12-27 | Fingerprint identification module and terminal |
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| CN206331451U true CN206331451U (en) | 2017-07-14 |
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| CN201621450568.4U Expired - Fee Related CN206331451U (en) | 2016-12-27 | 2016-12-27 | Fingerprint identification module and terminal |
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| CN108073900A (en) * | 2017-12-14 | 2018-05-25 | 京东方科技集团股份有限公司 | For the flexible display panels, display device and fingerprint identification method of fingerprint recognition |
| CN108596080A (en) * | 2018-04-20 | 2018-09-28 | Oppo广东移动通信有限公司 | Fingerprint recognition component, display device and electronic device |
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| CN109426768A (en) * | 2017-08-24 | 2019-03-05 | 蓝思科技（长沙）有限公司 | Fingerprint recognition component and intelligent terminal |
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| CN109460696A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技（长沙）有限公司 | Optical finger print sensing device and electronic equipment |
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| CN114677715A (en) * | 2022-03-21 | 2022-06-28 | 紫光计算机科技有限公司 | Novel fingerprint identification module and preparation method thereof |
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| CN109460695A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技（长沙）有限公司 | Fingerprint sensing device and intelligent terminal |
| CN109460694A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技（长沙）有限公司 | Fingerprint sensor, intelligent terminal and fingerprint sensor package method |
| CN109460696A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技（长沙）有限公司 | Optical finger print sensing device and electronic equipment |
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| CN109753845A (en) * | 2017-11-02 | 2019-05-14 | 蓝思科技（长沙）有限公司 | Optical fingerprint sensor structure and electronic equipment |
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