CN206515843U - Biology sensor - Google Patents
Biology sensor Download PDFInfo
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- CN206515843U CN206515843U CN201720124200.7U CN201720124200U CN206515843U CN 206515843 U CN206515843 U CN 206515843U CN 201720124200 U CN201720124200 U CN 201720124200U CN 206515843 U CN206515843 U CN 206515843U
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- cover plate
- biology sensor
- sensor
- nano structure
- micro nano
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Abstract
The utility model section Example provides a kind of biology sensor.Biology sensor includes sensor body and is arranged at the cover plate of the sensor body；The inner surface of the cover plate faces the sensing face of the sensor body；The outer surface of the cover plate is formed with micro nano structure.
Description
Technical field
The utility model is related to sensor technical field, more particularly to a kind of biology sensor.
Background technology
With the fast development of the development of biometric sensor, especially fingerprint Identification sensor, consumer is to fingerprint
The application of identification sensor is more and more frequently and universal, therefore, outer when using under various circumstances fingerprint Identification sensor
See the requirement of effect and fingerprint recognition rate also more and more higher.
Inventor has found that inventor has found at least to exist in the prior art and asked as follows during the utility model is realized
Topic：At present by coating high anti-fingerprint film thoroughly on the cover plate of fingerprint Identification sensor, sweat, oil are remained during avoiding using
Fat, water stain etc., to improve the fingerprint recognition rate of fingerprint Identification sensor, while keeping the overall appearance effect of the lower glass of light irradiation
Really.But, high anti-fingerprint film thoroughly is general than relatively thin, and abrasion resistance is limited, can gradually lose after a long time use, loses lifting
Fingerprint recognition rate and the effect for keeping appearance.
Utility model content
The purpose of the utility model section Example is to provide a kind of biology sensor, can be by cover plate outer surface
The micro nano structure of formation, prevents biology sensor from being influenceed in identification process by dirt on cover plate, to improve bio-sensing
The discrimination of device, while keeping the overall appearance effect of the lower biology sensor of light irradiation.
One embodiment of the present utility model provides a kind of biology sensor, including：Sensor body is with being arranged at biography
The cover plate of sensor body；The inner surface of cover plate faces the sensing face of sensor body；The outer surface of cover plate is formed with micro-nano knot
Structure.
The utility model embodiment in terms of existing technologies, by the micro nano structure formed in cover plate outer surface,
Prevent fingerprint sensor from being influenceed when recognizing fingerprint by dirt on cover plate, to improve the fingerprint recognition rate of fingerprint Identification sensor,
The overall appearance effect of the lower glass of light irradiation is kept simultaneously.
In addition, biology sensor also includes hydrophobic oleophobic layer；Hydrophobic oleophobic layer is arranged on micro nano structure.The present embodiment
In, in setting hydrophobic oleophobic layer on micro nano structure, two layers of anti-soil thing barrier is set, increases abrasion resistance, meanwhile, pass through micro-nano
Rice structure can be such that hydrophobic oleophobic layer is preferably combined with cover plate.
In addition, micro nano structure forms this by blasting craft, etch process or transfer printing process.Present embodiments provide
The preparation technology of a variety of micro nano structures, meets actual design demand, while being convenient for flexibly selection.
In addition, micro nano structure includes at least one of leaf composite construction and spherical composite construction.The present embodiment
There is provided two kinds of specific micro nano structures, it is easy to according to the preferable micro nano structure of actual conditions Selection effect.
In addition, the span of the thickness of micro nano structure is 1 nanometer to 100 microns.
In addition, the span of the thickness of hydrophobic oleophobic layer is 1 nanometer to 100 microns.
In addition, the span of the thickness of cover plate is 50 microns to 2000 microns.
In addition, sensor body is fingerprint recognition chip, cover plate is fixed on fingerprint recognition chip.
In addition, biology sensor also includes circuit board and becket；Fingerprint recognition chip is installed on circuit boards, and cover plate is solid
Due to fingerprint recognition chip；Becket is fixed on circuit board and around fingerprint recognition chip.It is raw there is provided one kind in the present embodiment
The specific implementation of thing sensor.
In addition, hydrophobic oleophobic layer is anti-fingerprint diaphragm.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, these exemplary theorys
The element with same reference numbers label is expressed as similar element in the bright restriction not constituted to embodiment, accompanying drawing, removes
Composition is not limited the non-figure having in special statement, accompanying drawing.
Fig. 1 is the structural representation of the biology sensor according to the utility model first embodiment；
Fig. 2 a be according to micro nano structure in the utility model first embodiment be leaf composite construction when schematic diagram；
Fig. 2 b be according to micro nano structure in the utility model first embodiment be spherical composite construction when schematic diagram；
Fig. 3 a are the irreflexive schematic diagrames of micro nano structure according to the utility model first embodiment；
Fig. 3 b are the schematic diagrames of micro nano structure according to the utility model first embodiment and drop contact；
Fig. 4 is the structural representation of the biology sensor according to the utility model second embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model section Example is further elaborated.It should be appreciated that specific embodiment described herein is only
Only to explain the utility model, it is not used to limit the utility model.
First embodiment of the present utility model is related to a kind of biology sensor, applied to electronic equipment, including mobile phone, notes
This computer etc..As shown in figure 1, biology sensor includes the cover plate 2 of sensor body 1 and sensor body.
In the present embodiment, Fig. 1 is refer to, cover plate 2 is arranged at sensor body 1, and the inner surface of cover plate 2 faces sensor sheet
The sensing face of body 1；The outer surface of cover plate 2 is formed with micro nano structure 21.In biology sensor detection process, organism (example
Such as finger) it is in direct contact with the micro nano structure 21 of the outer surface of cover plate 2, the sensing face of sensor body 1 is examined by cover plate 2
Organism is measured to contact and generate detection signal；That is, the outer surface of cover plate 2 is to be directly used on biology sensor and organism
The position of (such as finger) contact；Therefore the liquid such as residual sweat, grease, water stain is easily often readily accessed.
Cover plate 2 can be with certain thickness, some strength, the non-conductive material of certain dielectric constant, its thickness
Span is 50 microns to 2000 microns, for example, 50 microns, 1025 microns, 2000 microns, and material can be glass, oxidation
Zircon ceramic, sapphire, optical resin film etc., but not limited to this.
Micro nano structure 21 can be the intensive micron and nanometer composite structure with certain roughness, the value model of its thickness
Enclose for 1 nanometer to 100 microns, for example, 1 nanometer, 1 micron, 100 microns, refer to Fig. 2 a, 2b, micro nano structure 21 can be
Leaf composite construction or spherical composite construction, and not limited to this.In other embodiments, micro nano structure 21 can also be other
Structure, such as rhombus composite construction；Micro nano structure 21 can also be two or the combination of various structures, for example, micro-nano
Structure 21 is the combination of blade profile composite construction and spherical composite construction；However, the present embodiment is not intended to be limited in any to this.
Micro nano structure 21 is characterized in, by physically or chemically means, to be generated in lid surface on the surface of cover plate 2
Pattern, can be formed by blasting craft, etch process or transfer printing process, but not limited to this.Below to three kinds of preparation technologies
It is specifically introduced：
Blasting craft：Using compressed air, by abrasive material, injection, to the surface (pressure size is controllable) of cover plate 2, can make at a high speed
The surface of its cover plate 2 changes, and the scope of the deformation of cover plate 2 is only several nanometers to tens microns, it is possible thereby on the surface of cover plate 2
Generation has certain roughness, different depth microtexture pattern；Wherein, abrasive material, which can be selected, has grit and Spherical Sand etc. no
With outward appearance sand material, such as steel sand, aluminum oxide, carborundum, resin sand etc., its particle diameter can be selected to be several according to effect is ultimately generated
Ten microns to hundreds of microns；Blasting craft is applied to the cover plate 2 using materials such as glass, zirconia ceramics, sapphires as base material.
Transfer printing process：First make the pattern effect of micro nano structure 21, then silk-screen uv-curable glue in a mold, by with
After cover plate 2 is pressed, ultraviolet light curing and demolding is finally completed so that the pattern of micro nano structure 21 of glue material matter is able to be transferred to lid
The surface of plate 2；Transfer printing process is applied to the cover plate 2 using materials such as optical resin films as base material.
Etch process, can be dry etching or wet etching.The dimensional drawing of micro nano structure 21 is first generated in mask
Case, is exposed after development with photoresist, then through the surfacing of of overetch cover plate 2 itself, transfers the pattern onto on cover plate 2；
Can also be stripped again after being etched by silk-screen network method, pattern is formed with the cover board 2.Cover plate 2 after etching can be with
The different pattern of different depth is obtained, etch process is applied to the cover plate using materials such as glass, optical resin films as base material
2。
In the present embodiment, by above-mentioned preparation technology, micro nano structure 21 can be formed in the outer surface of cover plate 2, please
With reference to Fig. 3 a, micro nano structure 21 can make the light formation diffusing reflection for being irradiated to the surface of cover plate 2, to reduce Local residues material
Caused local reflex is excessively bright, reaches the fingerprint mark that elimination is produced by water stain, grease, sweat, keeps whole under light irradiation
Body appearance.Meanwhile, Fig. 3 b are refer to, micro nano structure 21 adds cover plate 2 and other liquids to a certain extent
(such as marked as contact angle 22) in drop, figure, hydrophobic, the oleophobic effects on increase cover plate 2 surface, to improve fingerprint recognition biography
The fingerprint recognition rate of sensor.
In the present embodiment, Fig. 1 is refer to, sensor body 1 can be fingerprint recognition chip, and cover plate 2 is fixed on fingerprint knowledge
Other chip.Biometric sensor also includes circuit board 3, becket 4, adhesive-layer 5；Fingerprint recognition chip is arranged on circuit board 3
On, cover plate 2 is fixed on fingerprint recognition chip by adhesive-layer 5.
Becket 4 is fixed on circuit board 3 and around fingerprint recognition chip, and becket 4 needs ground connection, and becket 4 can be slightly convex
For cover plate 2, to play a supportive role, cover sheet 2；Becket can be fixed on circuit board 3, the present embodiment pair by adhesive
This does not do any limitation, is selected according to actual conditions.
It should be noted that when circuit board 3 is FPC FPCs, biology sensor also includes stiffening plate 6, reinforcement
Plate 6 is fixed on the lower surface of circuit board 3, to strengthen its structural rigidity.
Preferably, biology sensor can also include ink layer 7, the inner surface of cover plate 2 is covered in, cover plate 2 is by setting
Adhesive-layer 5 between ink layer 7 and sensor body 1 is fixed on sensor body 1.Ink layer 7 is used to block sensor sheet
Body 1, can select different colours, produce different appearances.
The utility model embodiment in terms of existing technologies, by the micro nano structure formed in cover plate outer surface,
Prevent fingerprint sensor from being influenceed when recognizing fingerprint by dirt on cover plate, to improve the fingerprint recognition rate of fingerprint Identification sensor,
The overall appearance effect of the lower biology sensor of light irradiation is kept simultaneously.
Second embodiment of the present utility model is related to a kind of biology sensor, and the present embodiment is on the basis of first embodiment
Improvement, mainly the improvement is that：Hydrophobic oleophobic layer 8 is set on micro nano structure 21.
In the present embodiment, Fig. 4 is refer to, biology sensor also includes hydrophobic oleophobic layer 8, and hydrophobic oleophobic layer 8 is arranged at micro-
In nanostructured 21.
In the present embodiment, hydrophobic oleophobic layer 8 can be anti-fingerprint diaphragm, and the span of its thickness is 1 nanometer to 100
Micron, for example, 1 nanometer, 1 micron, 100 microns.Anti-fingerprint diaphragm includes polytype, preferably, referring to for a kind of height is thoroughly anti-
Line film, the span of its thickness is generally 10 nanometers to 20 nanometers, for example, 10 nanometers, 15 nanometers, 20 nanometers.
The present embodiment, in setting hydrophobic oleophobic layer on micro nano structure, sets two layers and resisted for first embodiment
Dirt barrier, increases abrasion resistance, meanwhile, by micro nano structure hydrophobic oleophobic layer can be made preferably to be combined with cover plate.
It will be understood by those skilled in the art that the various embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention, and
In actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of biology sensor, including：Sensor body and the cover plate for being arranged at the sensor body；
The inner surface of the cover plate faces the sensing face of the sensor body；
The outer surface of the cover plate is formed with micro nano structure.
2. biology sensor as claimed in claim 1, wherein, the biology sensor also includes hydrophobic oleophobic layer；
The hydrophobic oleophobic layer is arranged on the micro nano structure.
3. biology sensor as claimed in claim 1, wherein, the micro nano structure by blasting craft, etch process or
Person's transfer printing process is formed.
4. biology sensor as claimed in claim 1, wherein, the micro nano structure include leaf composite construction with it is spherical multiple
Close at least one of structure.
5. biology sensor as claimed in claim 1, wherein, the span of the thickness of the micro nano structure is 1 nanometer
To 100 microns.
6. biology sensor as claimed in claim 2, wherein, the span of the thickness of the hydrophobic oleophobic layer is 1 nanometer
To 100 microns.
7. biology sensor as claimed in claim 1, wherein, the span of the thickness of the cover plate is 50 microns to 2000
Micron.
8. biology sensor as claimed in claim 1, wherein, the sensor body is fingerprint recognition chip, the cover plate
It is fixed on the fingerprint recognition chip.
9. biology sensor as claimed in claim 8, wherein, the biology sensor also includes circuit board and becket；
The fingerprint recognition chip is arranged on the circuit board, and the cover plate is fixed on the fingerprint recognition chip；
The becket is fixed on the circuit board and around the fingerprint recognition chip.
10. biology sensor as claimed in claim 2, wherein, the hydrophobic oleophobic layer is anti-fingerprint diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720124200.7U CN206515843U (en) | 2017-02-10 | 2017-02-10 | Biology sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720124200.7U CN206515843U (en) | 2017-02-10 | 2017-02-10 | Biology sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515843U true CN206515843U (en) | 2017-09-22 |
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| CN201720124200.7U Active CN206515843U (en) | 2017-02-10 | 2017-02-10 | Biology sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145305A1 (en) * | 2017-02-10 | 2018-08-16 | 深圳市汇顶科技股份有限公司 | Biosensor |
-
2017
- 2017-02-10 CN CN201720124200.7U patent/CN206515843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145305A1 (en) * | 2017-02-10 | 2018-08-16 | 深圳市汇顶科技股份有限公司 | Biosensor |
| CN108780495A (en) * | 2017-02-10 | 2018-11-09 | 深圳市汇顶科技股份有限公司 | Biosensor |
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