CN107652739A - Anti-soil film, fingerprint module, the preparation method of anti-soil film - Google Patents
Anti-soil film, fingerprint module, the preparation method of anti-soil film Download PDFInfo
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- CN107652739A CN107652739A CN201710867401.0A CN201710867401A CN107652739A CN 107652739 A CN107652739 A CN 107652739A CN 201710867401 A CN201710867401 A CN 201710867401A CN 107652739 A CN107652739 A CN 107652739A
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- top coat
- coat layer
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- fingerprint
- enamelled coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1693—Antifouling paints; Underwater paints as part of a multilayer system
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
Abstract
The anti-soil film of fingerprint module disclosed by the invention includes prime coat, middle enamelled coating and top coat layer.The middle enamelled coating is formed on the prime coat.The top coat layer is formed on the middle enamelled coating, contains anti-fingerprint reagent in the top coat layer, the prime coat and the top coat layer are transparent configuration, and the middle enamelled coating is opaque structure.The top coat layer of anti-soil film, which contains anti-fingerprint reagent, makes anti-soil film have anti-fingerprint function；Simultaneously, prime coat and middle enamelled coating are set between the surface of top coat layer and the fingerprint Identification sensor of fingerprint module, on the one hand the adhesion that top coat layer is adhered on fingerprint Identification sensor can be lifted, enamelled coating can give anti-soil film to provide required color for opaque structure in another aspect.The invention also discloses the preparation method of a kind of fingerprint module and anti-soil film.
Description
Technical field
The present invention relates to fingerprint identification technology field, more particularly to a kind of anti-soil film, fingerprint module, the preparation side of anti-soil film
Method.
Background technology
When finger is placed on by user carries out fingerprint recognition on fingerprint module, moisture and greasy dirt on finger can typically glue
It is attached on fingerprint module and causes the precision of the identification fingerprint of fingerprint module to reduce, so as to influences the use of fingerprint module.
The content of the invention
Embodiments of the present invention provide a kind of anti-soil film, fingerprint module, the preparation method of anti-soil film.
The anti-soil film of the fingerprint module of embodiment of the present invention, the anti-soil film include prime coat, middle enamelled coating and top coat layer.
The middle enamelled coating is formed on the prime coat.The top coat layer is formed on the middle enamelled coating, containing anti-in the top coat layer
Fingerprint reagent, the prime coat and the top coat layer are transparent configuration, and the middle enamelled coating is opaque structure.
The top coat layer of the anti-soil film of embodiment of the present invention, which contains anti-fingerprint reagent, makes anti-soil film have anti-fingerprint function；Together
When, prime coat and middle enamelled coating are set between the surface of top coat layer and the fingerprint Identification sensor of fingerprint module, on the one hand can
Lifting top coat layer is adhered to the adhesion on fingerprint Identification sensor, and enamelled coating is that opaque structure can give anti-soil in another aspect
Film provides required color.
In some embodiments, the top coat layer includes more sub- top coat layers, and every sub- top coat layer includes anti-finger
Line reagent, along the direction away from the middle enamelled coating, the anti-fingerprint reagent content in multiple sub- top coat layers is gradual
Increase.The single layer topcoat consistent compared to the anti-fingerprint reagent content of the sub- top coat layer of innermost layer, the finish paint of present embodiment
The outermost straton top coat layer of layer anti-fingerprint reagent content is higher thus the fingerprint resistance of top coat layer can be stronger.
In some embodiments, the top coat layer includes more sub- top coat layers, and each sub- top coat layer includes
Light-sensitive material, along the direction away from the middle enamelled coating, the light-sensitive material content in multiple sub- top coat layers is gradual
Reduce.The single layer topcoat consistent compared to the light-sensitive material content of the straton top coat layer of outermost one, the finish paint of present embodiment
The smooth surface material of the innermost layer of layer content is higher thus the adhesion of top coat layer is bigger.
The fingerprint module of embodiment of the present invention is included described in fingerprint Identification sensor and above-mentioned any one embodiment
Anti-soil film, the anti-soil film formed on the fingerprint Identification sensor.
The fingerprint module of embodiment of the present invention and the top coat layer of anti-soil film, which contain anti-fingerprint reagent, makes anti-soil film with anti-
Fingerprint function；Meanwhile prime coat and middle enamelled coating are set between the surface of top coat layer and the fingerprint Identification sensor of fingerprint module,
On the one hand the adhesion that top coat layer is adhered on fingerprint Identification sensor can be lifted, enamelled coating is opaque structure in another aspect
Anti-soil film can be given to provide required color.
The preparation method of the anti-soil film of embodiment of the present invention includes：
To the surface spraying priming paint of fingerprint Identification sensor；
The priming paint is toasted to obtain prime coat；
Painted in being sprayed on to the prime coat；
The middle paint is toasted to obtain middle enamelled coating；With
Spraying passes through the finish paint of ultrasonic atomizatio and solidifies the finish paint to obtain top coat layer, the face on to the middle enamelled coating
Contain anti-fingerprint reagent in enamelled coating.
The preparation method of the anti-soil film of embodiment of the present invention sprays to finish paint fingerprint recognition biography after ultrasonic atomizatio
On sensor, make the distribution of top coat layer on fingerprint Identification sensor more uniform, consequently facilitating making thinner top coat layer and anti-
Dirty film, and the adhesive force that top coat layer is adhered on fingerprint Identification sensor is more preferable.
In some embodiments, the step of surface spraying priming paint to fingerprint Identification sensor includes：
The priming paint is carried out by ultrasonic atomizatio using ultrasonic spray nozzle and the basecoat paint of ultrasonic atomizatio will be passed through extremely
The surface of the fingerprint Identification sensor.
The preparation method of present embodiment is made by the way that priming paint is sprayed on fingerprint Identification sensor after ultrasonic atomizatio
The distribution of prime coat on fingerprint Identification sensor is more uniform, consequently facilitating making thinner prime coat and anti-soil film.
In some embodiments, the material of the priming paint includes epoxy modified resin, the temperature of the baking priming paint
Spend for 75 DEG C -95 DEG C, baking time is -30 minutes 10 minutes.Because fingerprint recognition sensing is typically using materials such as epoxy resin
It is packaged, and the characteristic of epoxy modified resin is close with the elastomeric material on fingerprint Identification sensor surface, thus changed by epoxy
Adhesion between property surface of prime coat and the fingerprint Identification sensor formed by epoxy resin made of resin is stronger.Upper
State baking temperature and under the time, the priming paint being sprayed on fingerprint Identification sensor can be formed by curing what shape and structure relatively consolidated
Prime coat.
In some embodiments, described the step of being painted into spraying on the prime coat, includes：
The middle paint is carried out by ultrasonic atomizatio using ultrasonic spray nozzle and will be sprayed into by the middle paint of ultrasonic atomizatio
The surface of the prime coat.
The preparation method of present embodiment makes fingerprint recognition by the way that middle paint is sprayed on prime coat after ultrasonic atomizatio
The distribution of middle enamelled coating on sensor is more uniform, consequently facilitating making thinner middle enamelled coating and anti-soil film.
In some embodiments, the material of the middle paint includes acrylic resin, the temperature of the baking middle paint
For 75 DEG C -95 DEG C, baking time is -30 minutes 10 minutes.Due to the characteristic and the material property phase of prime coat of acrylic resin
Closely, thus middle enamelled coating is adhered on prime coat made of acrylic resin adhesion is stronger.It is timely in above-mentioned baking temperature
Between under, the middle paint that is sprayed on prime coat can be formed by curing the relatively firm middle enamelled coating of shape and structure.
In some embodiments, the top coat layer includes more sub- top coat layers, described to be passed through to spraying on the middle enamelled coating
Crossing the finish paint of ultrasonic atomizatio and solidifying the step of finish paint is to obtain the top coat layer includes：
Multiple sub- multiple sub- top coat layers of top coat layer solidify afterwards have been sprayed on to the middle enamelled coating and have obtained the face
Enamelled coating.
More sub- top coat layers of resolidification make top coat layer after the preparation method of present embodiment first sprays more sub- top coat layers
Producing efficiency is higher.
In some embodiments, the top coat layer includes more sub- top coat layers, described to be passed through to spraying on the middle enamelled coating
Crossing the finish paint of ultrasonic atomizatio and solidifying the step of finish paint is to obtain the top coat layer includes：
A sub- top coat layer is sprayed on to the middle enamelled coating and solidifies a sub- top coat layer, then sprays next height
Top coat layer simultaneously solidifies the next sub- top coat layer until forming the top coat layer.
The preparation method of present embodiment sprays a sub- top coat layer and sprays next sub- top coat layer after solidifying again, avoids
When spraying next sub- top coat layer, next sub- top coat layer influences the shape of the sub- top coat layer so as to reduce the shape of top coat layer
Precision.
In some embodiments, each sub- top coat layer includes anti-fingerprint reagent, along away from the middle paint
On the direction of layer, the anti-fingerprint reagent content in multiple sub- top coat layers gradually increases.Compared to the sub- face of innermost layer
The consistent single layer topcoat of the anti-fingerprint reagent content of enamelled coating, the anti-finger of the outermost straton top coat layer of the top coat layer of present embodiment
Line reagent content is higher thus the fingerprint resistance of top coat layer can be stronger.
In some embodiments, each sub- top coat layer includes light-sensitive material, along away from the middle enamelled coating
Direction on, the content of the light-sensitive material in multiple sub- top coat layers is gradually reduced.Compared to the straton face of outermost one
The consistent single layer topcoat of the light-sensitive material content of enamelled coating, the content of the smooth surface material of the innermost layer of the top coat layer of present embodiment
Higher thus top coat layer adhesion is bigger.
In some embodiments, the light-sensitive material includes polyurethane acroleic acid, the material bag of the anti-fingerprint reagent
Include silicofluoride.Light-sensitive material is added in finish paint to shorten consolidating for top coat layer by laser curing finish paint without toasting
Change the time.
The additional aspect and advantage of embodiments of the present invention will be set forth in part in the description, partly will be from following
Description in become obvious, or recognized by the practice of embodiments of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention is from combining in description of the accompanying drawings below to embodiment by change
Obtain substantially and be readily appreciated that, wherein：Illustrating in newly-increased accompanying drawing modification, specification
Fig. 1 is the sectional view of the fingerprint module of some embodiments of the present invention；
Fig. 2 is the sectional view of the fingerprint module of some embodiments of the present invention；
Fig. 3 is the schematic flow sheet of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 4 is the structural representation of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 5 is the schematic flow sheet of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 6 is the schematic flow sheet of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 7 is the schematic flow sheet of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 8 is the schematic flow sheet of the anti-soil membrane preparation method of some embodiments of the present invention；
Fig. 9 is the sectional view of the fingerprint module of some embodiments of the present invention；With
Figure 10 is the sectional view of the fingerprint module of some embodiments of the present invention.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the anti-soil film 100 of the fingerprint module 200 of embodiment of the present invention includes prime coat 10, middle enamelled coating 20
And top coat layer 30.Prime coat 10 is formed on the surface of the fingerprint Identification sensor 40 of fingerprint module 200.Middle enamelled coating 20 is formed
On prime coat 10.Top coat layer 30 is formed on middle enamelled coating 20, contains anti-fingerprint reagent in top coat layer 30.Prime coat 10 and top coat layer
30 be transparent configuration, and middle enamelled coating 20 is opaque structure.
Fingerprint module 200 can be any in capacitance type fingerprint module, ultrasonic fingerprint module, optical fingerprint module
It is a kind of.Due to either compared to middle paint material and fingerprint Identification sensor 40 surface material between characteristic close journey
For degree, or characteristic close degree between material and the material on the surface of fingerprint Identification sensor 40 compared to finish paint and
Speech, the characteristic between the material of priming paint and the material on the surface of fingerprint Identification sensor 40 is more close, moreover, the material of middle paint
Characteristic close between the material of characteristic close between the material of priming paint, the material of finish paint and middle paint, thus finish paint passes through
The adhesion that priming paint and middle paint are adhered on fingerprint Identification sensor 40 compares finish paint and is adhered directly to fingerprint Identification sensor 40
On adhesion it is stronger.Middle enamelled coating 20 is opaque structure, available for the color required for being provided to anti-soil film 100, such as in
Enamelled coating 20 is red, green, blueness, purple, cyan, yellow etc..Anti-fingerprint reagent that top coat layer 30 includes is simultaneously anti-for being lifted
The anti-soil and anti-fingerprint ability of dirty film 100, top coat layer 30 can be that one layer of overall structure can also include more sub- top coat layers 32.
Top coat layer 30 is sprayed on middle enamelled coating 20 by ultrasonic spray nozzle and formed, so as to lift the deposition accuracies of top coat layer 30 and face
The adhesion of enamelled coating 30.Anti-fingerprint reagent on top coat layer 30 can prevent moisture on finger and greasy dirt to be adhered to top coat layer 30
Upper (that is to say that top coat layer 30 has anti-fingerprint function).
The top coat layer 30 of the anti-soil film 100 of embodiment of the present invention makes anti-soil film 100 have anti-finger containing anti-fingerprint reagent
Line function；Meanwhile between the surface of top coat layer 30 and the fingerprint Identification sensor 40 of fingerprint module 100 set prime coat 10 and
Middle enamelled coating 20, the adhesion that top coat layer 30 is adhered on fingerprint Identification sensor 40 on the one hand can be lifted, is painted in another aspect
Layer 20 is that opaque structure can provide required color to anti-soil film 100.
Referring to Fig. 2, in some embodiments, the top coat layer 30 of above-mentioned embodiment includes more sub- top coat layers 32,
Every sub- top coat layer 32 includes anti-fingerprint reagent, along the direction along remote middle enamelled coating 20, in more sub- top coat layers 32
Anti-fingerprint reagent content gradually increases.The individual layer finish paint consistent compared to the anti-fingerprint reagent content of top coat layer 32 sub- with innermost layer
Layer, the anti-fingerprint reagent content of the outermost straton top coat layer 32 of the top coat layer 30 of present embodiment is higher thus top coat layer 30 it is anti-
Fingerprint performance is stronger.
Referring to Fig. 2, in some embodiments, the top coat layer 30 of above-mentioned embodiment includes more sub- top coat layers 32,
Every sub- top coat layer 32 includes light-sensitive material, along the direction along remote middle enamelled coating 20, the light in more sub- top coat layers 32
Quick material content is gradually reduced.The single layer topcoat consistent compared to the light-sensitive material content of the straton top coat layer 32 of outermost one,
The content of the smooth surface material of the innermost layer of the top coat layer 30 of present embodiment is higher thus the adhesion of top coat layer 30 is bigger.
Referring to Fig. 1, the fingerprint module 200 of embodiment of the present invention includes fingerprint Identification sensor 40 and any of the above-described reality
Apply the anti-soil film 100 of mode.Anti-soil film 100 is formed on fingerprint Identification sensor 40, specifically, prime coat 10, middle enamelled coating 20
And top coat layer 30 is sequentially formed on fingerprint Identification sensor 40.Fingerprint Identification sensor 40 include capacitive fingerprint sensing device,
Any one in ultrasonic fingerprint identification sensor and optical fingerprint identification sensor.Fingerprint module 200 can be used for mobile phone,
On the electronic installations such as tablet personal computer, fingerprint module 200 can be also used on the devices such as lock, gate inhibition.
Fig. 3 and Fig. 4 is referred to, the preparation method of the anti-soil film 100 of embodiment of the present invention includes：
S1, to the surface spraying priming paint of fingerprint Identification sensor 40；
S2, priming paint is toasted to obtain prime coat 10；
S3, to prime coat 10 on spray in paint；
S4, painted in baking to obtain middle enamelled coating 20；With
S5, to middle enamelled coating 20 on spraying by ultrasonic atomizatio finish paint and solidify finish paint to obtain top coat layer 30, top coat layer
Contain anti-fingerprint reagent in 30.
Priming paint can be sprayed by ultrasonic spray nozzle after ultrasonic atomizatio to fingerprint Identification sensor 40.In other implementations
In mode, priming paint can also be sprayed by non-ultrasonic shower nozzle to fingerprint Identification sensor 40.Middle paint can be sprayed by ultrasonic wave
Head sprays after ultrasonic atomizatio to fingerprint Identification sensor 40.In other embodiments, middle paint can also pass through non-ultrasound
Ripple shower nozzle sprays to fingerprint Identification sensor 40.The finish paint of ultrasonic atomizatio can by ultrasonic spray nozzle after high frequency oscillation shape
Into the finish paint granularity of ultrasonic atomizatio is smaller and controllable.Top coat layer 30 can be that one layer of overall structure can also include more height
Top coat layer 32.
Finish paint is sprayed to fingerprint recognition by the preparation method of the anti-soil film 100 of embodiment of the present invention after ultrasonic atomizatio
On sensor 40, make the distribution of top coat layer 30 on fingerprint Identification sensor 40 more uniform, consequently facilitating making thinner face
Enamelled coating 30 and anti-soil film 100, and the adhesive force that top coat layer 30 is adhered on fingerprint Identification sensor 40 is more preferable.
The preparation method of the anti-soil film 100 of embodiment of the present invention also has the advantages that：First, due to either
Compared to middle paint material and fingerprint Identification sensor 40 surface material between characteristic close degree for, still compare
In finish paint material and fingerprint Identification sensor 40 surface material between characteristic close degree for, the material of priming paint with
Characteristic between the material on the surface of fingerprint Identification sensor 40 is more close, moreover, the material of the material of middle paint and priming paint it
Between characteristic close, the characteristic close between the material of finish paint and the material of middle paint, thus finish paint pass through priming paint and it is middle paint adhesion
It is stronger that adhesion on fingerprint Identification sensor 40 compares the adhesion that finish paint is adhered directly on fingerprint Identification sensor 40.
Second, because top coat layer 30 and prime coat 10 are transparent configuration, and middle enamelled coating 20 is opaque structure, i.e., middle to paint
Layer 20 can select multiple color as needed, by the middle enamelled coating 20 between prime coat 10 and top coat layer 30, know anti-fingerprint
Other film 100 can be arranged as required to required color.
Referring to Fig. 5, in some embodiments, the surface to fingerprint Identification sensor 40 of above-mentioned embodiment
The step of spray-applied primer, (step S1) included：
S11, priming paint is carried out and by by the basecoat paint of ultrasonic atomizatio to fingerprint by ultrasonic atomizatio using ultrasonic spray nozzle
The surface of identification sensor 40.
The preparation method of present embodiment by the way that priming paint is sprayed on fingerprint Identification sensor 40 after ultrasonic atomizatio,
Make the distribution of the prime coat 10 on fingerprint Identification sensor more uniform, consequently facilitating making thinner prime coat 10 and anti-soil
Film.
In some embodiments, the material of the priming paint of above-mentioned embodiment includes epoxy modified resin.Toast priming paint
Temperature is 75 DEG C -95 DEG C, and baking time is -30 minutes 10 minutes.Because fingerprint recognition sensing 40 is typically using epoxy resin etc.
Material is packaged, and the characteristic of epoxy modified resin is close with the elastomeric material on fingerprint Identification sensor surface, thus by ring
Adhesion between the surface of prime coat 10 made of oxygen modified resin and the fingerprint Identification sensor 40 formed by epoxy resin
It is stronger.Specifically, baking temperature is in 75 DEG C, 77.5 DEG C, 80 DEG C, 82.5 DEG C, 85 DEG C, 87.5 DEG C, 90 DEG C, 92.5 DEG C, 95 DEG C
Any one or any two between value；Baking time can be 10 minutes, 12.5 minutes, 15 minutes, 17.5 points
Clock, 20 minutes, 12.5 minutes, 25 minutes, 17.5 minutes, the value between any one or any two in 30 minutes.
Under above-mentioned baking temperature and time, the priming paint that is sprayed on fingerprint Identification sensor 40 can be formed by curing shape and structure compared with
Firm prime coat 10.
Referring to Fig. 6, in some embodiments, the step of paint into spraying on the prime coat of above-mentioned embodiment
(step S3) includes：
S31, middle paint is carried out by ultrasonic atomizatio using ultrasonic spray nozzle and priming paint will be sprayed into by the middle paint of ultrasonic atomizatio
The surface of layer 10.
The preparation method of present embodiment knows fingerprint by the way that middle paint is sprayed on prime coat 10 after ultrasonic atomizatio
The distribution of middle enamelled coating 20 in individual sensor is more uniform, consequently facilitating making thinner middle enamelled coating 20 and anti-soil film 100.
In some embodiments, the material of the middle paint of above-mentioned embodiment includes acrylic resin.The temperature painted in baking
Spend for 75 DEG C -95 DEG C, baking time is -30 minutes 10 minutes.Because the characteristic of acrylic resin and the material of prime coat 10 are special
Similar temperament, thus the adhesion that middle enamelled coating 20 is adhered on prime coat 10 made of acrylic resin is stronger.Specifically, toast
Temperature is any one in 75 DEG C, 77.5 DEG C, 80 DEG C, 82.5 DEG C, 85 DEG C, 87.5 DEG C, 90 DEG C, 92.5 DEG C, 95 DEG C or appoints
Value between meaning two；Baking time can be 10 minutes, 12.5 minutes, 15 minutes, 17.5 minutes, 20 minutes, 12.5 points
Clock, 25 minutes, 17.5 minutes, the value between any one or any two in 30 minutes.In above-mentioned baking temperature and
Under time, the middle paint being sprayed on prime coat 10 can be formed by curing the relatively firm middle enamelled coating 20 of shape and structure.
Referring to Fig. 7, in some embodiments, top coat layer 30 includes more sub- top coat layers 32, to middle enamelled coating 20 on spray
Applying the finish paint by ultrasonic atomizatio and solidifying the step of finish paint is to obtain top coat layer 30 (step S5) includes：
S51, to middle enamelled coating 20 on sprayed more sub- top coat layers 32 of more sub- solidify afterwards of top coat layer 32 and obtain top coat layer 30.
The thickness of more sub- top coat layers 32 with all same or can differ, and the anti-fingerprint reagent in more sub- top coat layers 32 contains
Amount can be differed.The preparation method of present embodiment first sprays more sub- top coat layers 32 of resolidification after more sub- top coat layers 32
Make the producing efficiency of top coat layer 30 higher.
Referring to Fig. 8, in some embodiments, top coat layer 30 includes more sub- top coat layers 32, to middle enamelled coating 20 on spray
Applying the finish paint by ultrasonic atomizatio and solidifying the step of finish paint is to obtain top coat layer 30 (step S5) includes：
S52, to middle enamelled coating 20 on spray and a sub- top coat layer 32 and solidify this sub- top coat layer 32, then spray next
Sub- top coat layer 32 simultaneously solidifies the next sub- top coat layer 32 until forming top coat layer 30.
The thickness of more sub- top coat layers 32 with all same or can differ, and the anti-fingerprint reagent in more sub- top coat layers 32 contains
Amount can be differed.The preparation method of present embodiment sprays a sub- top coat layer 32 and sprays next sub- face after solidifying again
Enamelled coating 32, avoid when spraying next sub- top coat layer 32, next sub- top coat layer 32 influence the shape of the sub- top coat layer 32 from
And reduce the form accuracy of top coat layer 30.
Referring to Fig. 2, in some embodiments, every sub- top coat layer 32 in above-mentioned embodiment includes anti-finger
Line reagent, along the direction away from middle enamelled coating 20, the anti-fingerprint reagent content in more sub- top coat layers 32 gradually increases.
Referring to Fig. 9, when top coat layer 30 includes being formed in two sub- top coat layers 32 on middle enamelled coating 20, away from middle paint
On the direction of layer 20, the first sub- 32 and second sub- top coat layer 32 of top coat layer is followed successively by.Wherein, the anti-finger in the first sub- top coat layer 32
The percentage composition of line reagent is 10%-30%, and the percentage composition of the anti-fingerprint reagent in the second sub- top coat layer 32 is 70%-
90%；Referring to Fig. 10, when top coat layer 30 includes being formed in three sub- top coat layers 32 on middle enamelled coating 20, away from middle enamelled coating
On 20 direction, the first sub- top coat layer 32, the second sub- 32 and the 3rd sub- top coat layer 32 of top coat layer are followed successively by.Wherein, the first sub- face
The percentage composition of anti-fingerprint reagent in enamelled coating 32 is 10%-30%, the percentage of the anti-fingerprint reagent in the second sub- top coat layer 32
Content is 40%-60%, and the percentage composition of the anti-fingerprint reagent in the 3rd sub- top coat layer 32 is 70%-90%.Compared to most
The consistent single layer topcoat of the anti-fingerprint reagent content of inner- electron top coat layer 32, the outermost straton of the top coat layer 30 of present embodiment
The anti-fingerprint reagent content of top coat layer 32 is higher thus the fingerprint resistance of top coat layer 30 can be stronger.
In some embodiments, the top coat layer 30 of the above-mentioned embodiment of above-mentioned embodiment includes more sub- top coat layers
32, every sub- top coat layer 32 includes light-sensitive material, along the direction along remote middle enamelled coating 20, in more sub- top coat layers 32
Light-sensitive material content is gradually reduced.
Referring to Fig. 9, when top coat layer 30 includes being formed in two sub- top coat layers 32 on middle enamelled coating 20, away from middle paint
On the direction of layer 20, the first sub- 32 and second sub- top coat layer 32 of top coat layer is followed successively by.Wherein, it is photosensitive in the first sub- top coat layer 32
The percentage composition of material is 70%-90%, and the percentage composition of the light-sensitive material in the second sub- top coat layer 32 is 10%-30%；Please
Refering to Figure 10, when top coat layer 30 includes being formed in three sub- top coat layers 32 on middle enamelled coating 20, in the side away from middle enamelled coating 20
Upwards, the first sub- top coat layer 32, the second sub- 32 and the 3rd sub- top coat layer 32 of top coat layer are followed successively by.Wherein, the first sub- top coat layer 32
In the percentage composition of light-sensitive material be 70%-90%, the percentage composition of the light-sensitive material in the second sub- top coat layer 32 is 40%-
60%, the percentage composition of the light-sensitive material in the 3rd sub- top coat layer 32 is 10%-30%.Compared to the straton top coat layer of outermost one
The consistent single layer topcoat of 32 light-sensitive material content, the content of the smooth surface material of the innermost layer of the top coat layer 30 of present embodiment
Higher thus top coat layer 30 adhesion is bigger.
In some embodiments, every sub- top coat layer 32 in above-mentioned embodiment includes anti-fingerprint reagent and light
Quick material, along the direction away from middle enamelled coating 20, the anti-fingerprint reagent content in more sub- top coat layers 32 gradually increases, and more
Light-sensitive material content in individual sub- top coat layer 32 is gradually reduced.Specifically, anti-fingerprint reagent in every sub- top coat layer 32 contains
Amount and the content sum all same of light-sensitive material and be a definite value, the definite value can for 100%, 95%, 90%, 85% and
Any one in 80% or any value between the two.
, please when the content of the anti-fingerprint reagent in every sub- top coat layer 32 and the content sum of light-sensitive material are 100%
Refering to Fig. 9, if top coat layer 30 includes forming two sub- top coat layers 32 on middle enamelled coating 20, in the direction away from middle enamelled coating 20
On, it is followed successively by the first sub- 32 and second sub- top coat layer 32 of top coat layer.Wherein, hundred of the anti-fingerprint reagent in the first sub- top coat layer 32
Point content is 10%-30%, and the percentage composition of the light-sensitive material in the first sub- top coat layer 32 is 70%-90%, the second sub- finish paint
The percentage composition of anti-fingerprint reagent in layer 32 is 70%-90%, the percentage composition of the light-sensitive material in the second sub- top coat layer 32
For 10%-30%；Referring to Fig. 10, if top coat layer 30 includes forming three sub- top coat layers 32 on middle enamelled coating 20, remote
On the direction of middle enamelled coating 20, the first sub- top coat layer 32, the second sub- 32 and the 3rd sub- top coat layer 32 of top coat layer are followed successively by.Wherein,
The percentage composition of anti-fingerprint reagent in one sub- top coat layer 32 is 10%-30%, the light-sensitive material in the first sub- top coat layer 32
Percentage composition is 70%-90%, and the percentage composition of the anti-fingerprint reagent in the second sub- top coat layer 32 is 40%-60%, the second son
The percentage composition of light-sensitive material in top coat layer 32 is 40%-60%, the percentage of the anti-fingerprint reagent in the 3rd sub- top coat layer 32
Content is 70%-90%, and the percentage composition of the light-sensitive material in the 3rd sub- top coat layer 32 is 10%-30%.
In some embodiments, the top coat layer 30 in above-mentioned embodiment also includes light-sensitive material, light-sensitive material
Material includes polyurethane acroleic acid, and the material of anti-fingerprint reagent includes silicofluoride.Light-sensitive material is added in finish paint can be by swashing
Photocuring finish paint shortens the hardening time of top coat layer 30 without toasting.
In the description of this specification, reference term " some embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment party
Formula or specific features, structure, material or the feature of example description are contained at least one embodiment or example of the present invention
In.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover,
Specific features, structure, material or the feature of description can be in any one or more embodiments or example with suitable
Mode combine.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one feature.In the description of the invention, " multiple " are meant that at least two, such as two,
Three etc., unless otherwise specifically defined.
Although embodiments of the present invention have been shown and described above, it is to be understood that above-mentioned embodiment is
Exemplary, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be right
Above-mentioned embodiment is changed, changed, replacing and modification, the scope of the present invention are limited by claim and its equivalent.
Claims (13)
1. a kind of anti-soil film of fingerprint module, it is characterised in that the anti-soil film includes：
Prime coat；
Middle enamelled coating, formed on the prime coat；With
Top coat layer, formed on the middle enamelled coating, contain anti-fingerprint reagent, the prime coat and the finish paint in the top coat layer
Layer is transparent configuration, and the middle enamelled coating is opaque structure.
2. anti-soil film according to claim 1, it is characterised in that the top coat layer includes more sub- top coat layers, per height
Top coat layer includes anti-fingerprint reagent, described in multiple sub- top coat layers along the direction along the remote middle enamelled coating
Anti-fingerprint reagent content gradually increases.
3. anti-soil film according to claim 1, it is characterised in that the top coat layer includes more sub- top coat layers, Mei Gesuo
State sub- top coat layer and include light-sensitive material, along the direction along the remote middle enamelled coating, the institute in multiple sub- top coat layers
Light-sensitive material content is stated to be gradually reduced.
4. a kind of fingerprint module, it is characterised in that the fingerprint module includes：
Fingerprint Identification sensor；And
Anti-soil film described in claim 1-3 any one, the anti-soil film are formed on the fingerprint Identification sensor.
5. a kind of preparation method of anti-soil film, it is characterised in that the preparation method includes：
To the surface spraying priming paint of fingerprint Identification sensor；
The priming paint is toasted to obtain prime coat；
Painted in being sprayed on to the prime coat；
The middle paint is toasted to obtain middle enamelled coating；With
Spraying passes through the finish paint of ultrasonic atomizatio and solidifies the finish paint to obtain top coat layer, the top coat layer on to the middle enamelled coating
It is interior to contain anti-fingerprint reagent.
6. preparation method according to claim 5, it is characterised in that the surface spraying bottom to fingerprint Identification sensor
The step of paint, includes：
Using ultrasonic spray nozzle by the priming paint carry out ultrasonic atomizatio and by by the basecoat paint of ultrasonic atomizatio to described
The surface of fingerprint Identification sensor.
7. preparation method according to claim 5, it is characterised in that the material of the priming paint includes epoxy modified resin,
The temperature of the baking priming paint is 75 DEG C -95 DEG C, and baking time is -30 minutes 10 minutes.
8. preparation method according to claim 5, it is characterised in that described the step of being painted into spraying on the prime coat
Including：
The middle paint is carried out by ultrasonic atomizatio using ultrasonic spray nozzle and is sprayed into the middle paint by ultrasonic atomizatio described
The surface of prime coat.
9. preparation method according to claim 5, it is characterised in that the material of the middle paint includes acrylic resin, institute
State toast the middle paint temperature be 75 DEG C -95 DEG C, baking time be -30 minutes 10 minutes.
10. preparation method according to claim 5, it is characterised in that the top coat layer includes more sub- top coat layers, described
Spraying passes through the finish paint of ultrasonic atomizatio and solidifies the step of finish paint is to obtain the top coat layer and includes on to the middle enamelled coating：
Multiple sub- multiple sub- top coat layers of top coat layer solidify afterwards have been sprayed on to the middle enamelled coating and have obtained the top coat layer；
Or
A sub- top coat layer is sprayed on to the middle enamelled coating and solidifies a sub- top coat layer, then sprays next sub- finish paint
Layer simultaneously solidifies the next sub- top coat layer until forming the top coat layer.
11. preparation method according to claim 10, it is characterised in that each sub- top coat layer includes anti-fingerprint
Reagent, along the direction away from the middle enamelled coating, the anti-fingerprint reagent content in multiple sub- top coat layers gradually increases
Greatly.
12. preparation method according to claim 10, it is characterised in that each sub- top coat layer includes photosensitive material
Material, along the direction away from the middle enamelled coating, the content of the light-sensitive material in multiple sub- top coat layers is gradually reduced.
13. preparation method according to claim 12, it is characterised in that the light-sensitive material includes polyurethane acroleic acid,
The material of the anti-fingerprint reagent includes silicofluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867401.0A CN107652739A (en) | 2017-09-22 | 2017-09-22 | Anti-soil film, fingerprint module, the preparation method of anti-soil film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867401.0A CN107652739A (en) | 2017-09-22 | 2017-09-22 | Anti-soil film, fingerprint module, the preparation method of anti-soil film |
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| Publication Number | Publication Date |
|---|---|
| CN107652739A true CN107652739A (en) | 2018-02-02 |
Family
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| CN201710867401.0A Withdrawn CN107652739A (en) | 2017-09-22 | 2017-09-22 | Anti-soil film, fingerprint module, the preparation method of anti-soil film |
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Cited By (1)
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| WO2021081777A1 (en) * | 2019-10-29 | 2021-05-06 | 南昌欧菲生物识别技术有限公司 | Ultrasonic fingerprint module, fabrication method therefor and electronic device |
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Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330013 No.698 Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province Applicant before: OFilm Microelectronics Technology Co.,Ltd. Address after: 330013 No.698 Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province Applicant after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330013 No.698 Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province Applicant before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. |
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