CN109145682A - A kind of optical fingerprint identification device and preparation method thereof - Google Patents
A kind of optical fingerprint identification device and preparation method thereof Download PDFInfo
- Publication number
- CN109145682A CN109145682A CN201710459218.7A CN201710459218A CN109145682A CN 109145682 A CN109145682 A CN 109145682A CN 201710459218 A CN201710459218 A CN 201710459218A CN 109145682 A CN109145682 A CN 109145682A
- Authority
- CN
- China
- Prior art keywords
- light
- finger
- transparent substrate
- layer
- shield layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G06V40/1341—Sensing with light passing through the finger
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of optical fingerprint identification device and preparation method thereof, including transparent substrate, illuminating source and optical sensor, transparent substrate is equipped with finger and presses area；Illuminating source is located at surrounding's whole region or the partial region that finger presses area, and is located at the lower section of transparent substrate；Optical sensor is set to the lower section that the finger presses area, illuminating source is a flat surface light source, the light-shielding structure that angle is issued for limiting its light is additionally provided on illuminating source, the emitting beam of illuminating source partially enters finger after light-shielding structure shading and press area.Optical fingerprint identification device provided by the invention, using planar light source, it can effective thinning device, light-shielding structure is set on planar light source simultaneously, the part transmitting light of planar light source can be obstructed by light-shielding structure, it is interfered so as to avoid the light leakage of some light, substantially reduces fingerprint signal and the signal-to-noise ratio of light signal part, improve the identification capability to fingerprint signal.
Description
Technical field
The present invention relates to optical fingerprint identification technology fields, and in particular to a kind of optical fingerprint identification device and its preparation side
Method.
Background technique
Optical fingerprint collector is a optical fingerprint collector, needs own light source, and current light source uses LED chip
And the mode of light guide plate, the shortcomings that there is efficiencies is low, illumination is irregular, group reload request is high, higher cost.
Mainstream technology is capacitance type fingerprint identification technique and optical fingerprint identification technique to identification of fingerprint technology now；Capacitor
Formula has advantage small in size at present, is widely used among mobile device, such as: mobile phone, notebook, tablet computer, but this
Requirement in identification is more harsh, the reason is that because sensor is the signal for recognizing " capacitor ", because of the height of fingerprint
Its signal different from generating when sensor contacts of official post reaches discriminating function, when there are moist, slight dirty conditions for finger
Under, it is likely to that identification is allowed to fail or judge by accident.It is recognized using optical fingerprint, accuracy rate is higher, but existing optics framework needs
One piece of prism is extremely difficult to the target of slimming as standard module part, therefore it is mostly fixed identification of fingerprint system that application is upper
System.
Chinese patent literature CN 104751121 discloses the light wave conduction fingerprint recognition system based on grating, utilizes light
The source of parallel light of total internal reflection, this grating need higher process technique, fingerprint tough in grid and the production waveguide of circumscribed LED light source
Change the parallel light signal of total internal reflection after waveguide, receiver judges that fingerprint signal, program identification capability remain to be discussed with this, benefit
Signal is detected with the variation in total reflection parallel light source in the same direction, this principle requires surface cleanliness very high, and any dirty have can
Judgement can be caused to fail, and grating and external light source can not accomplish whole plane identification of fingerprint.
With the progress of optical sensor, the analytic ability of optical signal is obviously improved, allows optical identification system
System realizes slimming, light-weighted target, and most competitive light source is planar light source after slim, because of planar light source thickness pole
It is small, but it is slim after the directly incident sensor of fingerprint sensor module light source itself or too strong via waveguide reflection signal, be easy
It causes the signal-to-noise ratio between fingerprint signal and light signal excessively high, fingerprint signal can not be recognized, to cause the identification to fingerprint
Ability is lower.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming in the prior art that there are fingerprint signal and light for planar light source
The excessively high problem of signal-to-noise ratio between source signal, to provide a kind of optical fingerprint identification device and preparation method thereof.
For achieving the above object, the present invention adopts the following technical scheme:
On the one hand, the present invention provides a kind of optical fingerprint identification devices, including transparent substrate, illuminating source and optics sense
Device is answered, the transparent substrate is equipped with finger and presses area；The illuminating source is located at the finger and presses whole areas around area
Domain or partial region, and it is located at the lower section of the transparent substrate；The optical sensor is set to the finger and presses under area
Side, the illuminating source are a flat surface light source, and the shading that angle is issued for limiting its light is additionally provided on the illuminating source
The finger described in partially entering after the light-shielding structure shading that emits beam of structure, the illuminating source presses area, passes through
The finger enters the optical sensor formation fingerprint recognition signal after pressing area's reflection.
The light-shielding structure is the opaque light source(-)holder of a upper end opening, and the illuminating source emits beam by described
The upper end opening of opaque light source(-)holder projects, and enters in the transparent substrate.
It is pressed positioned at the finger and is respectively equipped with the first light shield layer on the transparent substrate around area, first shading
Layer is located at the surface of the illuminating source.
First light shield layer close to the finger press the outer edge of area side to the edge of the illuminating source away from
From L >=d*tan (θc), wherein θc=sin-1(1/n), n are transparent substrate refractive index；D is transparent substrate thickness；θcFor transparent base
The limit angle of total reflection of plate.
First light shield layer is in the middle line setting for being symmetrical with the illuminating source.
The finger presses and is additionally provided with encapsulated layer and the second light shield layer between area and the optical sensor, and described second hides
Multiple light holes are formed on photosphere, are set to the surface of the optical sensor.
The opaque light source(-)holder is set on the encapsulated layer, and second light shield layer is set to the interior of the encapsulated layer
Side or lateral surface.
The diameter of the light hole is 10um-500um, and the spacing between the adjacent light hole is 10um-
10mm。
The planar light source is OLED light source.
On the other hand, the present invention also provides a kind of preparation methods of optical fingerprint identification device, comprising the following steps:
The finger of S1, on the transparent substrate side presses whole region or partial region around area and passes through spin coating photoetching process
Form the first light shield layer；
S2, on the transparent substrate downside below the first light shield layer by sputtering technology formed OLED anode layer, and
It is photo-etched into required planar light source shape；
S3, organic layer and cathode layer is successively deposited on the anode layer, the light-shielding structure is prepared on cathode layer,
The light-shielding structure coats planar light source；
S4, encapsulated layer and the second light shield layer are prepared on the light-shielding structure layer；
S5, the lower section that optical sensor is set to second light shield layer or encapsulated layer are made the optical finger print and know
Other device.
Compared with prior art, technical solution of the present invention has the following beneficial effects:
A. optical fingerprint identification device provided by the invention, using planar light source, can effective thinning device, while
Light-shielding structure is set on planar light source, and the part transmitting light of planar light source can be obstructed by light-shielding structure, be incident to finger and press
The light in area, which enters, to be all-trans in the transparent substrate of emission mode, and the light for the emission mode that is all-trans waits for that fingerprint is pressed into above transparent substrate
When, by the control of reasonable angle, substrate material and thickness, the light for issuing light source is totally reflected in a substrate, when
When finger presses finger and presses area, light is projected because fingerprint contact surface causes total reflection failure modes, light contacts fingerprint
Back reflection, which enters in optical sensor, to be analyzed, and is interfered so as to avoid the light leakage of some light, is made fingerprint signal and light source
The signal-to-noise ratio of signal part substantially reduces, and improves to the identification capability of fingerprint signal up to 50% or more.
B. optical fingerprint identification device provided by the present invention is more thinned using planar light source, replaces capacitance type fingerprint
Sensor is as optical profile type fingerprint sensor of new generation, accuracy and use condition less-restrictive.
C. substrate lateral surface of the present invention above opaque light source(-)holder position is provided with the first light shield layer, the first light shield layer
It can shine to avoid the light that reflects of illuminating source, illuminating source across glass substrate, when light emitting angle is totally reflected less than the limit
Angle θcWhen, light is stopped or is absorbed by the first light shield layer, and light emitting angle is greater than limit angle of total reflection θcLight enter total reflection mould
Formula is further reduced light signal in glass substrate in this way, reduces signal-to-noise ratio, helps to improve the identification energy of fingerprint signal
Power.
D. the present invention by the way that the second light shield layer is arranged between optical sensor and transparent substrate, on the second light shield layer at
Type has multiple light holes, and when finger pressing is when finger presses zone position, the light reflected by transparent substrate reaches light
Before learning inductor, it can be filtered by the second light shield layer, the light after light hole can be captured by optical sensor, portion
Divide the light not entered in light hole, can be obstructed or be absorbed by the second light shield layer, pass through the principle of pinhole imaging system, obtain high definition
The fingerprint graph of clear degree.
E. it is that non-luminous region is hardly visible light, works as sense when no finger presses that finger of the invention, which presses area,
It finger should be arrived presses Shi Caihui and occur low-light around finger, therefore, the present invention is more suitably applied on mobile phone or computer screen
Fingerprint recognition.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of optical fingerprint identification system of the present invention；
Fig. 2 is the second embodiment structural schematic diagram of optical fingerprint identification device；
Fig. 3 is the structural schematic diagram of the second light shield layer；
Fig. 4 is the third embodiment structure schematic diagram of optical fingerprint identification device.
Fig. 5 is the 4th embodiment structure schematic diagram of optical fingerprint identification device.
Description of symbols: 1- transparent substrate, 11- finger press area；2- illuminating source, 3- encapsulated layer, 4- optical sensor
Device, the second light shield layer of 51-, 52- opaque light source(-)holder, the first light shield layer of 53-；6- light hole.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The present invention can be embodied in many different forms, and should not be construed as limited to embodiment set forth herein.
On the contrary, providing these embodiments, so that the disclosure will be thorough and complete, and design of the invention will be fully conveyed to
Those skilled in the art, the present invention will only be defined by the appended claims.In the accompanying drawings, for clarity, the area Ceng He can be exaggerated
The size and relative size in domain.It should be understood that when element such as layer, region or substrate are referred to as " being formed in " or " setting
" another element "upper" when, which can be arranged directly on another element, or there may also be intermediary elements.
On the contrary, intermediary element is not present when element is referred to as on " being formed directly into " or " being set up directly on " another element.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
As depicted in figs. 1 and 2, a kind of optical fingerprint identification device, including transparent substrate 1, illuminating source 2 and optical sensor
Device 4 is equipped with finger on transparent substrate 1 and presses area 11；Illuminating source 2 is located at surrounding's whole region or the portion that finger presses area 11
Subregion, and it is located at the lower section of transparent substrate 1；Optical sensor 4 is set to the lower section that finger presses area 11, and the present invention is used
Illuminating source 2 be a flat surface light source, be additionally provided on illuminating source 2 for limit its light issue angle light-shielding structure,
The emitting beam of illuminating source 2 partially enters finger after light-shielding structure shading and presses area 11, presses area 11 through finger and reflects
After enter optical sensor 4 formed fingerprint recognition signal.
Light-shielding structure therein is the opaque light source(-)holder 52 of a upper end opening, is made of opaque material, and shine light
The upper end opening injection to emit beam by opaque light source(-)holder 52 in source 2, and enter in transparent substrate 1 and be totally reflected, work as hand
When referring to that being pressed into finger presses area 11, light is projected because fingerprint contact surface causes total reflection failure modes, and light is reflected into down
The optical sensor 4 of side carries out fingerprint recognition.
Embodiment 1
It in order to avoid some light direct projections enter in transparent substrate, and is projected by refraction, then encounters finger and be reflected into light
It learning in inductor 4, the present invention preferably presses in finger and is respectively equipped with the first light shield layer 53 on the transparent substrate 1 around area 11,
First light shield layer 53 is located at the surface of illuminating source 2.Transparent base will be directed into for some direct lines issued
In plate 1, the first light shield layer 53 then covered above absorbs, and avoids this part from not entering into finger and presses light in area 11
Light directly is reflected, influences the beauty of fingerprint identification device.
Here the material of the first light shield layer is without particular/special requirement, can be gold as long as opaque can be realized goal of the invention
Belong to layer, such as Mo/Al/Mo, Ag etc..
Preferably, as shown in Fig. 2, the first light shield layer 53 therein is in the outer edge for pressing 11 side of area close to finger to hair
Edge Distance L >=d*tan (θ of radiantc), wherein θc=sin-1(1/n), n are transparent substrate refractive index；D is transparent substrate
Thickness；θcFor the limit angle of total reflection of transparent substrate.
Therefore the size of the first light shield layer 53 depends on planar light source geometry, glass material and thickness.
The present invention is provided with the first light shield layer 53 on the transparent substrate 1 above 52 position of opaque light source(-)holder, and first hides
Photosphere 53 can obstruct illuminating source 2 and shine across glass substrate 1, when light emitting angle is less than limit angle of total reflection θcLight is by
One light shield layer stops or absorbs, and light emitting angle is greater than limit angle of total reflection θcLight enter be all-trans emission mode in glass substrate
In, it is further reduced light signal in this way, reduces signal-to-noise ratio, helps to improve the identification capability of fingerprint signal.
It is further preferred that the first light shield layer 53 is in the middle line setting for being symmetrical with illuminating source 2, it is of course also possible to by position
Extend in the first light shield layer outer ledge towards the both ends of transparent substrate, only guarantees the first light shield layer inside edge to illuminating source
Inside edge distance L meet above-mentioned formula relationship.
Embodiment 2
As shown in Figure 1, pressing area 11 and optics sense in finger to further carry out noise reduction to fingerprint optical identifying apparatus
It answers and is additionally provided with encapsulated layer 3 and the second light shield layer 51 between device 4, multiple light holes 6 are formed on the second light shield layer 51, be arranged
In the surface of optical sensor 4.
Opaque light source(-)holder 52 in the present embodiment is set on transparent encapsulated layer 3, and the second light shield layer 51 is set to envelope
On the lateral surface for filling layer 3.
The present invention to the material of the second light shield layer 51 without particular/special requirement, can be with as long as opaque can be realized goal of the invention
For metal layer, such as Mo/Al/Mo, Ag etc..
Light passing bore dia therein is 10um-500um, preferred 15um in the present invention, and the spacing between adjacent light hole is
10um-10mm, the preferred 0.68mm of the present invention, as shown in Figure 3.
The present invention, without particular/special requirement, can be circle to 6 shape of light hole of the second light shield layer 51, and hexagon is square,
Triangle, one or more of diamond shape, pentagon.
It should be noted that the diameter of light hole herein has the meaning that diameter is if light hole is circle
The round diameter of ordinary meaning；When the shape of light hole be other shapes when, the diameter be its external diameter of a circle, when for
When irregular shape, the diameter is the direct distance of the widest two o'clock of the graphic width.Spacing between adjacent light hole
Refer to the distance between nearest two o'clock of two neighboring light hole.
The present invention between optical sensor 4 and transparent substrate 1 by being arranged the second light shield layer 51, in the second light shield layer 51
On form multiple light holes 6, when finger pressing is when finger presses 11 position of area, the light that is reflected by transparent substrate 1
Before reaching optical sensor 4, encapsulated layer 3 is first passed through, is filtered subsequently into the second light shield layer 51, by light hole 6
Light afterwards is captured by pinhole imaging system principle by optical sensor 4, and fingerprint image high-definition is obtained.Part does not enter
Light in light hole 6 can be obstructed or be absorbed by the second light shield layer 51.
Embodiment 3
As different from Example 2, as shown in figure 4, opaque light source(-)holder 52 is set on the second light shield layer 51, second is hidden
Photosphere 51 is arranged on the medial surface of encapsulated layer 3.
When finger pressing is when finger presses 11 position of area, the light reflected by transparent substrate 1 reaches optics sense
Before answering device 4, first passes through the second light shield layer 51 and be filtered, after the light after light hole 6 passes through encapsulated layer 3 again, finally
It is captured by optical sensor 4, is not entered the light in light hole 6 partially, can obstructed or be absorbed by the second light shield layer 51, utilize
The principle of pinhole imaging system obtains fingerprint graph high-definition, is conducive to the identification essence for improving optical sensor to fingerprint image
Degree.
As shown in figure 4, the method for specifically preparing optical fingerprint identification device is as follows:
The finger of S1, on the transparent substrate side presses whole region or partial region around area and passes through spin coating photoetching process
Form the first light shield layer.
S2, on the transparent substrate downside below the first light shield layer by sputtering technology formed OLED anode layer, and
It is photo-etched into required planar light source shape；
S3, organic layer and cathode layer is successively deposited on the anode layer, opaque shading knot is prepared on cathode layer
Structure, light-shielding structure wrap up planar light source；Opaque light-shielding structure can carry out bottom surface and side to obtained planar light source
Shading.
S4, encapsulated layer and the second light shield layer are sequentially prepared on opaque light-shielding structure layer；Wherein second light shield layer
Light passing bore dia 15um, the spacing between adjacent light hole are 0.68mm.
Optical fingerprint identification device is made in S5, the lower section that optical sensor is set to the second light shield layer.
Embodiment 4
Unlike 3 structure of embodiment, in the present embodiment by the second light shield layer be arranged two opaque light source(-)holders it
Between, and the second light shield layer is in the medial surface of encapsulated layer, it is specific as shown in figure 5, being repeated no more here to it.
As shown in figure 5, the method for specifically preparing optical fingerprint identification device is as follows:
The finger of S1, on the transparent substrate side presses whole region or partial region around area and passes through spin coating photoetching process
Form the first light shield layer.
S2, on the transparent substrate downside below the first light shield layer by sputtering technology formed OLED anode layer, and
It is photo-etched into required planar light source shape；
S3, organic layer and cathode layer is successively deposited on the anode layer, opaque light source(-)holder is prepared on cathode layer, hide
Photo structure wraps up planar light source；Opaque light source(-)holder can carry out the shading of bottom surface and side to obtained planar light source.
S4, on opaque light source(-)holder between make the second light shield layer；And in the second light shield layer and opaque light source(-)holder
Lower section makes encapsulated layer；The wherein light passing bore dia 15um of the second light shield layer, the spacing between adjacent light hole are 0.68mm.
Optical fingerprint identification device is made in S5, the lateral surface that optical sensor is set to encapsulated layer.
The finger in each embodiment, which presses area, above to be different geometries, and light source can be designed to different
Shape presses area with finger and matches, and the planar light source here shape that shines can be any " point " " line " " face " luminous shape
Shape, geometry do not limit.
Using technical solution disclosed in this invention, since optical finger print identification is the light using glass substrate inner total reflection
Line is that not can be appreciated that identification mould group exists to shine by visual observation herein, contact surface (the i.e. glass of total reflection is destroyed after fingerprint tough
With the interface of air), achieve the purpose that identification of fingerprint.In addition, since the light of glass total reflection has specific travel angle
Characteristic, therefore recognize accuracy rate and promote 50% or more compared with the prior art, i.e. identification success rate promotes 50% or more.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of optical fingerprint identification device, including transparent substrate, illuminating source and optical sensor, set on the transparent substrate
There is finger to press area；The illuminating source is located at surrounding's whole region or the partial region that the finger presses area, and is located at institute
State the lower section of transparent substrate；The optical sensor is set to the lower section that the finger presses area, which is characterized in that described to shine
Light source is a flat surface light source, and the light-shielding structure that angle is issued for limiting its light, the hair are additionally provided on the illuminating source
The finger described in partially entering after the light-shielding structure shading that emits beam of radiant presses area, presses through the finger
The optical sensor, which is entered, after area's reflection forms fingerprint recognition signal.
2. optical fingerprint identification device according to claim 1, which is characterized in that the light-shielding structure is that a upper end is opened
The opaque light source(-)holder of mouth, the upper end opening injection of the illuminating source to emit beam by the opaque light source(-)holder, goes forward side by side
Enter in the transparent substrate.
3. optical fingerprint identification device according to claim 2, which is characterized in that pressed around area positioned at the finger
The first light shield layer is respectively equipped on the transparent substrate, first light shield layer is located at the surface of the illuminating source.
4. optical fingerprint identification device according to claim 3, which is characterized in that first light shield layer is close to described
Finger presses the outer edge of area side to Edge Distance L >=d*tan (θ of the illuminating sourcec), wherein θc=sin-1(1/n),
N is transparent substrate refractive index；D is transparent substrate thickness；θcFor the limit angle of total reflection of transparent substrate.
5. optical fingerprint identification device according to claim 4, which is characterized in that first light shield layer is in be symmetrical with institute
State the middle line setting of illuminating source.
6. optical fingerprint identification device according to claim 1, which is characterized in that the finger presses area and the optics
It is additionally provided with encapsulated layer and the second light shield layer between inductor, forms multiple light holes on second light shield layer, is set to
The surface of the optical sensor.
7. optical fingerprint identification device according to claim 6, which is characterized in that the opaque light source(-)holder is set to institute
It states on encapsulated layer, second light shield layer is set to the medial surface or lateral surface of the encapsulated layer.
8. optical fingerprint identification device according to claim 6 or 7, which is characterized in that the diameter of the light hole is
10um-500um, the spacing between the adjacent light hole are 10um-10mm.
9. optical fingerprint identification device according to claim 1, which is characterized in that the planar light source is oled light
Source.
10. a kind of preparation method of optical fingerprint identification device, which comprises the following steps:
The finger of S1, on the transparent substrate side presses whole region or partial region around area and is formed by spin coating photoetching process
First light shield layer；
S2, OLED anode layer, and photoetching formed by sputtering technology on the transparent substrate downside below the first light shield layer
At required planar light source shape；
S3, organic layer and cathode layer is successively deposited on the anode layer, the light-shielding structure is prepared on cathode layer, it is described
Light-shielding structure coats planar light source；
S4, encapsulated layer and the second light shield layer are prepared on the light-shielding structure layer；
The optical finger print identification dress is made in S5, the lower section that optical sensor is set to second light shield layer or encapsulated layer
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459218.7A CN109145682B (en) | 2017-06-16 | 2017-06-16 | Optical fingerprint identification device and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459218.7A CN109145682B (en) | 2017-06-16 | 2017-06-16 | Optical fingerprint identification device and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109145682A true CN109145682A (en) | 2019-01-04 |
| CN109145682B CN109145682B (en) | 2022-02-22 |
Family
ID=64830605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710459218.7A Active CN109145682B (en) | 2017-06-16 | 2017-06-16 | Optical fingerprint identification device and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109145682B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786577A (en) * | 2019-01-30 | 2019-05-21 | 固安翌光科技有限公司 | A kind of fingerprint identification device OLED screen body and fingerprint identification device |
| CN110781848A (en) * | 2019-10-30 | 2020-02-11 | Oppo广东移动通信有限公司 | Fingerprint recognition device under screen and electronic equipment |
| CN111381725A (en) * | 2019-07-11 | 2020-07-07 | 友达光电股份有限公司 | Touch control panel with optical scanning function |
| WO2020206919A1 (en) * | 2019-04-10 | 2020-10-15 | Shenzhen GOODIX Technology Co., Ltd. | Optical id sensing using illumination light sources positioned at a periphery of a display screen |
| WO2020211779A1 (en) * | 2019-04-16 | 2020-10-22 | 华为技术有限公司 | Fingerprint identification module, screen assembly and electronic device |
| CN111985415A (en) * | 2020-08-24 | 2020-11-24 | 武汉天马微电子有限公司 | Display panel, display device and control method of display panel |
| WO2021073013A1 (en) * | 2019-10-17 | 2021-04-22 | Shenzhen GOODIX Technology Co., Ltd. | Anti-spoofing of two-dimensional fake objects with bright-dark reversal imaging in optical sensing modules |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429852Y (en) * | 2009-04-16 | 2010-03-24 | 成都方程式电子有限公司 | Optical fingerprint collecting device |
| CN102004903A (en) * | 2010-11-17 | 2011-04-06 | 深圳市中控生物识别技术有限公司 | Anti-counterfeiting fingerprint identification device and fingerprint identification method |
| CN102360425A (en) * | 2011-10-21 | 2012-02-22 | 成都方程式电子有限公司 | Thinned optical fingerprint acquirer |
| CN104700093A (en) * | 2015-03-30 | 2015-06-10 | 上海箩箕技术有限公司 | Fingerprint imaging module and mobile terminal |
| CN105336751A (en) * | 2014-06-23 | 2016-02-17 | 上海箩箕技术有限公司 | Photoelectric sensor and manufacturing method thereof |
| CN106022325A (en) * | 2016-08-05 | 2016-10-12 | 上海箩箕技术有限公司 | Optical fingerprint sensor module |
| CN106295606A (en) * | 2016-08-19 | 2017-01-04 | 维沃移动通信有限公司 | A kind of fingerprint recognition assembly, fingerprint recognition module and mobile terminal |
| US20170011248A1 (en) * | 2015-07-09 | 2017-01-12 | Gingy Technology Inc. | Fingerprint identification module |
| CN106529487A (en) * | 2016-11-18 | 2017-03-22 | 上海箩箕技术有限公司 | Optical fingerprint sensor module |
| CN106773273A (en) * | 2017-03-09 | 2017-05-31 | 京东方科技集团股份有限公司 | The driving method of display device and display device |
-
2017
- 2017-06-16 CN CN201710459218.7A patent/CN109145682B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429852Y (en) * | 2009-04-16 | 2010-03-24 | 成都方程式电子有限公司 | Optical fingerprint collecting device |
| CN102004903A (en) * | 2010-11-17 | 2011-04-06 | 深圳市中控生物识别技术有限公司 | Anti-counterfeiting fingerprint identification device and fingerprint identification method |
| CN102360425A (en) * | 2011-10-21 | 2012-02-22 | 成都方程式电子有限公司 | Thinned optical fingerprint acquirer |
| CN105336751A (en) * | 2014-06-23 | 2016-02-17 | 上海箩箕技术有限公司 | Photoelectric sensor and manufacturing method thereof |
| CN104700093A (en) * | 2015-03-30 | 2015-06-10 | 上海箩箕技术有限公司 | Fingerprint imaging module and mobile terminal |
| US20170011248A1 (en) * | 2015-07-09 | 2017-01-12 | Gingy Technology Inc. | Fingerprint identification module |
| CN106022325A (en) * | 2016-08-05 | 2016-10-12 | 上海箩箕技术有限公司 | Optical fingerprint sensor module |
| CN106295606A (en) * | 2016-08-19 | 2017-01-04 | 维沃移动通信有限公司 | A kind of fingerprint recognition assembly, fingerprint recognition module and mobile terminal |
| CN106529487A (en) * | 2016-11-18 | 2017-03-22 | 上海箩箕技术有限公司 | Optical fingerprint sensor module |
| CN106773273A (en) * | 2017-03-09 | 2017-05-31 | 京东方科技集团股份有限公司 | The driving method of display device and display device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786577A (en) * | 2019-01-30 | 2019-05-21 | 固安翌光科技有限公司 | A kind of fingerprint identification device OLED screen body and fingerprint identification device |
| CN109786577B (en) * | 2019-01-30 | 2020-12-11 | 固安翌光科技有限公司 | OLED screen body for fingerprint identification device and fingerprint identification device |
| WO2020206919A1 (en) * | 2019-04-10 | 2020-10-15 | Shenzhen GOODIX Technology Co., Ltd. | Optical id sensing using illumination light sources positioned at a periphery of a display screen |
| WO2020211779A1 (en) * | 2019-04-16 | 2020-10-22 | 华为技术有限公司 | Fingerprint identification module, screen assembly and electronic device |
| JP2022529272A (en) * | 2019-04-16 | 2022-06-20 | 華為技術有限公司 | Fingerprint recognition module, screen assembly and electronics |
| US11625944B2 (en) | 2019-04-16 | 2023-04-11 | Huawei Technologies Co., Ltd. | Fingerprint recognition module, screen assembly, and electronic device |
| JP7371117B2 (en) | 2019-04-16 | 2023-10-30 | 華為技術有限公司 | Fingerprint recognition module, screen assembly and electronic device |
| CN111381725A (en) * | 2019-07-11 | 2020-07-07 | 友达光电股份有限公司 | Touch control panel with optical scanning function |
| CN111381725B (en) * | 2019-07-11 | 2023-07-14 | 友达光电股份有限公司 | Touch control plate with optical scanning function |
| WO2021073013A1 (en) * | 2019-10-17 | 2021-04-22 | Shenzhen GOODIX Technology Co., Ltd. | Anti-spoofing of two-dimensional fake objects with bright-dark reversal imaging in optical sensing modules |
| US11093595B2 (en) | 2019-10-17 | 2021-08-17 | Shenzhen GOODIX Technology Co., Ltd. | Anti-spoofing of two-dimensional fake objects with bright-dark reversal imaging in optical sensing modules |
| CN110781848A (en) * | 2019-10-30 | 2020-02-11 | Oppo广东移动通信有限公司 | Fingerprint recognition device under screen and electronic equipment |
| CN110781848B (en) * | 2019-10-30 | 2022-05-20 | Oppo广东移动通信有限公司 | Screen fingerprint identification device and electronic equipment |
| CN111985415A (en) * | 2020-08-24 | 2020-11-24 | 武汉天马微电子有限公司 | Display panel, display device and control method of display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109145682B (en) | 2022-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109145682A (en) | A kind of optical fingerprint identification device and preparation method thereof | |
| US11288483B2 (en) | Fingerprint recognition device, fingerprint recognition method, and display device | |
| CN210052176U (en) | Fingerprint detection device and electronic equipment | |
| CN207650835U (en) | Display panel and mobile terminal | |
| CN105304656B (en) | Photoelectric sensor | |
| WO2017206558A1 (en) | Display device and fingerprint identification method thereof | |
| CN108287634A (en) | The driving method of touch-control display panel, display device and touch-control display panel | |
| CN108694379A (en) | Device for the marking for shooting body part | |
| CN111095279B (en) | Fingerprint detection device and electronic equipment | |
| CN210295125U (en) | Fingerprint detection device and electronic equipment | |
| WO2021146976A1 (en) | Fingerprint detection apparatus and electronic device | |
| CN209486694U (en) | Optical finger print identifies mould group and electronic equipment | |
| CN106599768A (en) | Optical device | |
| CN110928017A (en) | Display panel | |
| CN216161104U (en) | Biological information identification module and electronic equipment | |
| CN111837128A (en) | Fingerprint anti-counterfeiting method, fingerprint identification device and electronic equipment | |
| CN111191613A (en) | Fingerprint identification structure, fingerprint identification display substrate and manufacturing method thereof | |
| CN109426022A (en) | Display module | |
| CN111108509A (en) | Fingerprint detection device and electronic equipment | |
| CN108615005A (en) | Fingerprint recognition component, display device and electronic device | |
| CN109411504A (en) | OLED screen body and optical fingerprint identification device as fingerprint identification device light source | |
| CN211087267U (en) | Fingerprint identification device, backlight unit, display screen and electronic equipment | |
| CN211529170U (en) | Fingerprint identification device and electronic equipment | |
| CN105816185A (en) | Information acquisition apparatus | |
| CN107194303B (en) | Glass cover plate, manufacturing method thereof and optical fingerprint sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |