CN206975663U - Fingerprint recognition module and handheld terminal - Google Patents
Fingerprint recognition module and handheld terminal Download PDFInfo
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- CN206975663U CN206975663U CN201720884054.8U CN201720884054U CN206975663U CN 206975663 U CN206975663 U CN 206975663U CN 201720884054 U CN201720884054 U CN 201720884054U CN 206975663 U CN206975663 U CN 206975663U
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Abstract
It the utility model is related to a kind of handheld terminal and its fingerprint recognition module.Fingerprint recognition module includes discoloration label layer, and the predetermined pattern that discoloration label layer is formed can play mark action.Further, when illumination parameter or temperature parameter change, the color of photochromic ink layer or heat discoloration ink layer in the label layer that changes colour, which can correspond to, to be changed, or photic storage light ink layer can carry out energy storage or luminous, so that predetermined pattern shows color and light and shade change.When user is when using handheld terminal, with the continuity of usage time and the switching of local environment, respective change can occur for illumination parameter and temperature parameter, so as to cause the color of discoloration label layer or bright-dark degree also to change therewith.It is therefore not necessary to change handheld terminal, user can experience the appearance color of a variety of different fingerprint recognition modules, therefore Consumer's Experience is effectively lifted.
Description
Technical field
Fingerprint identification technology field is the utility model is related to, more particularly to a kind of fingerprint recognition module and handheld terminal.
Background technology
With the continuous development of various electronic products, its uniqueness, security, the requirement also more and more higher of confidentiality.Cause
This, fingerprint identification technology has become basically universal applied in various electronic products.
When fingerprint recognition module is applied into the handheld terminals such as mobile phone, in order to reach the uniformity of outward appearance, fingerprint recognition
The color of module usually requires to be consistent with the integral color of handheld terminal.At present, mainly realized using cover plate color
The color of fingerprint recognition module is distinguished.
User always wishes a variety of different experience during the use of handheld terminal.For example, experience fingerprint recognition mould
The different appearance color of group.But traditional fingerprint recognition module, after assembled formation, its color is fixed.Namely
Say, if user wants there are a variety of experience, handheld terminal must be changed.However, for ordinary consumer, frequently change hand-held whole
End is unpractical, therefore traditional fingerprint recognition module causes Consumer's Experience poor.
Utility model content
Based on this, it is necessary to the problem of causing Consumer's Experience poor for existing fingerprint recognition module, there is provided one kind can have
The finger fingerprint recognition module and handheld terminal of effect lifting Consumer's Experience.
A kind of fingerprint recognition module, including：
Substrate；
Fingerprint sensor, it is arranged at the substrate side and is electrically connected with the substrate；
Encapsulated layer positioned at the substrate side, the fingerprint sensor package is in the encapsulated layer；And
Silk-screen forms predetermined pattern, the change colour code in the discoloration label layer on the encapsulated layer, the discoloration label layer
Knowledge layer is any one or two kinds and the above in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer
Combination；
Wherein, the color of the photochromic ink layer changes with illumination parameter is corresponding, the temperature sensing color changing ink layer
Color changes with temperature parameter is corresponding, and the photic storage light ink layer is used to store luminous energy and change into the luminous energy of storage glimmering
Light.
The predetermined pattern that discoloration label layer is formed can play mark action.Further, in illumination parameter or temperature parameter
When changing, the color of photochromic ink layer or heat discoloration ink layer in the label layer that changes colour, which can correspond to, to be changed, or
Photic storage light ink layer can carry out energy storage or luminous, so that predetermined pattern shows color and light and shade change.When user exists
During using handheld terminal comprising above-mentioned fingerprint recognition module, with the continuity of usage time and the switching of local environment, illumination
Respective change can occur for parameter and temperature parameter, so as to cause the color of discoloration label layer or bright-dark degree also to change therewith.Cause
This, without changing handheld terminal, user can experience the appearance color of a variety of different fingerprint recognition modules.
In one of the embodiments, the thickness for the label layer that changes colour is 4~10 microns.
When the thickness for the label layer that changes colour is less than 4 microns, its interception is limited, and can cause to change colour label layer in itself
Color is shallower, it is impossible to functions well as the effect of marker color change.And when the thickness for the label layer that changes colour is excessive, then become colour code
Know layer surface flatness to be difficult to control, and then cause flatness bad., can be when the thickness for the label layer that changes colour is 4~10 microns
While meeting color marking requirement, preferable flatness is obtained.
In one of the embodiments, in addition to silk-screen is in the protective layer of the discoloration mark layer surface, the protective layer
Light-permeable.Protective layer plays a protective role to discoloration label layer, can prevent the label layer excessive wear that changes colour.
In one of the embodiments, the protective layer is UV cured layers or hard ink layer.
In one of the embodiments, the thickness of the protective layer is 26~28 microns.
If the thickness of protective layer is excessive, the distance of fingerprint sensor surface distance touch location can be caused excessive, so as to
The conduction of pressure signal is influenceed, and then causes the sensitivity deficiency of fingerprint recognition module.And the thickness of protective layer is too small, then intensity
Reduce the effect for not having protection.When the thickness of protective layer is 26~28 microns, protective effect and fingerprint recognition module can be taken into account
Sensitivity.
In one of the embodiments, in addition to silk-screen in the surface of the encapsulated layer and is in the dyed layer of pre-set color,
The dyed layer is between the discoloration label layer and the encapsulated layer.Dyed layer makes fingerprint recognition module have initial face
Color, and by color the color matching of the priming color and handheld terminal of fingerprint recognition module can be set to be consistent.
In one of the embodiments, the thickness of the dyed layer is 6~8 microns.
When the thickness of dyed layer is less than 6 microns, itself color is shallower, and its color can not preferably be reflected in fingerprint recognition
Module surface.And the thickness of dyed layer be more than 8 microns when, then the conduction of pressure signal in fingerprint recognition module can be caused to be obstructed,
So as to reduce the sensitivity of fingerprint recognition module.When the thickness of dyed layer is 6~8 microns, color depth requirement can met
Meanwhile the influence to fingerprint recognition module sensitivity is reduced as far as possible.
In one of the embodiments, in addition to silk-screen is located at institute in the prime coat on the encapsulated layer, the prime coat
State between encapsulated layer and the dyed layer.Prime coat plays a transition role, so as to strengthen the jail connected between dyed layer and encapsulated layer
Solidity.
In one of the embodiments, the thickness of the prime coat is 6~8 microns.
When the thickness of prime coat is less than 6 microns, film layer is too thin, it is impossible to connection dyed layer and encapsulated layer well.And priming paint
When the thickness of layer is more than 8 microns, then because film layer is too thick surface smoothness may be caused insufficient, so as to influence the attached of dyed layer
.When the thickness of prime coat is 6~8 microns, the connection between dyed layer and encapsulated layer is more firm.
In one of the embodiments, the discoloration label layer is single layer structure, and the discoloration label layer is comprising photic
The mixture of any one or two kinds and the above in camouflage paint, heat discoloration pigment and photic light-storing paint.
Because discoloration label layer only has a Rotating fields, therefore one-step print is only needed when discoloration identifies formable layer, so as to
Effectively simplify technological process.Moreover, the thickness for the label layer that changes colour can be can be controlled in smaller range.
In one of the embodiments, the discoloration label layer is sandwich construction, and the discoloration label layer is light-induced variable
Any two kinds in color ink layer, heat discoloration ink layer and photic storage light ink layer and the above stack gradually the stacking knot to be formed
Structure.
Because discoloration label layer be sandwich construction, thus each the interference mutual in color change of different film layers compared with
It is small.
In one of the embodiments, the fingerprint recognition module also includes frame, and the frame surrounds the protective layer
And the encapsulated layer is circumferentially disposed.
Frame is played a supporting role to whole fingerprint recognition module, and then is easy to fingerprint recognition module being installed on and is held eventually
On the main frame at end.
In one of the embodiments, the fingerprint recognition module also includes flexible PCB, and the flexible PCB is set
It is placed in the side of the fingerprint sensor backwards of the substrate and is electrically connected with the substrate.
Flexible PCB has pliability, therefore can be easy to enter walking line in narrow space in host shell.Therefore, exist
When fingerprint recognition module is applied into handheld terminal, it can be easy to electrically connect substrate with the mainboard realization in main frame.
A kind of handheld terminal, including：
Main frame；
Fingerprint recognition module as any one of above-mentioned preferred embodiment, the substrate electrically connect with the main frame.
Above-mentioned handheld terminal and its fingerprint recognition module, fingerprint recognition module include discoloration label layer, and change colour label layer shape
Into predetermined pattern can play mark action.Further, when illumination parameter or temperature parameter change, change colour label layer
In photochromic ink layer or the color of heat discoloration ink layer can correspond to and change, or photic storage light ink layer can be stored up
Can or it light, so that predetermined pattern shows color and light and shade change.When user is using handheld terminal, with use
Respective change can occur for the continuity of time and the switching of local environment, illumination parameter and temperature parameter, so as to cause discoloration to identify
The color or bright-dark degree of layer also change therewith.It is therefore not necessary to change handheld terminal, user can experience a variety of different fingerprints
The appearance color of module is identified, therefore Consumer's Experience is effectively lifted.
Brief description of the drawings
Fig. 1 is the stepped construction schematic diagram of fingerprint recognition module in the utility model preferred embodiment；
Fig. 2 is the schematic flow sheet of fingerprint recognition module preparation method in the utility model one embodiment.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to of the present utility model
The understanding of disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
The utility model provides a kind of handheld terminal, including main frame and the fingerprint recognition module 100 that is arranged on main frame.
Main frame includes multiple parts such as shell, display screen, processor and mainboard.Wherein, handheld terminal can be mobile phone, PAD or MP5 etc.
Electronic equipment.
The utility model also provides a kind of fingerprint recognition module 100.Referring to Fig. 1, in the utility model preferred embodiment
Fingerprint recognition module 100 include substrate 110, fingerprint sensor 120, encapsulated layer 130 and discoloration label layer 140.
Substrate 110 plays a supportive role.Moreover, substrate 110 is provided with printed circuit, the conduction for signal.By fingerprint
When identification module 100 is applied to handheld terminal, substrate 110 is used to electrically connect with the mainboard of handheld terminal.
Fingerprint sensor 120 is arranged at the side of substrate 110 and electrically connected with substrate 110.Fingerprint sensor 120 believes pressure
Number electric signal is changed into, to gather finger print information.
Encapsulated layer 130 is located at the side of substrate 110.Specifically, encapsulated layer 130 can be formed by material solidifications such as resin, glue.Its
In, fingerprint sensor 120 is packaged in encapsulated layer 130.Further, default face can be also presented with transparent in encapsulated layer 130
Color.
The silk-screen of label layer 140 change colour on encapsulated layer 130, and forms predetermined pattern.Specifically, discoloration label layer 140 can
It is formed by curing using by the ink doped with camouflage paint, silk-screen printing in the surface of encapsulated layer 130.Silk-screen mode can have
Beneficial to the thickness for reducing discoloration label layer 140.Wherein, the predetermined pattern for the label layer 140 that changes colour can be alphabetical, special mark
Or pattern.For different types of handheld terminal, predetermined pattern can be with personal settings, so as to play the work distinguished and identified
With.Specifically in the present embodiment, the thickness for the label layer that changes colour is 4~10 microns.
When the thickness for the label layer 140 that changes colour is less than 4 microns, its interception is limited, and can cause the label layer 140 that changes colour
The color of itself is shallower, it is impossible to functions well as the effect of marker color change.And when the thickness of discoloration label layer 140 is excessive
When, then the surface smoothness of label layer 140 that changes colour is difficult to control, and then causes flatness bad.Discoloration label layer 140 thickness be
At 4~10 microns, preferable flatness can be obtained while color marking requirement is met.
Specifically, discoloration label layer 140 is in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer
Any one or two kinds and the above combination.That is, the type of discoloration label layer 140 includes 7 kinds of possibility, it is respectively：
Discoloration label layer 140 is any one in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer；Discoloration
Label layer 140 is any two kinds of combination in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer；Become
Color label layer 140 is the combination of photochromic label layer, heat discoloration label layer and photic storage light ink layer three.
Wherein, the color of photochromic ink layer changes with illumination parameter is corresponding, and the color of temperature sensing color changing ink layer is with temperature
The corresponding change of parameter is spent, photic storage light ink layer is used to store luminous energy and the luminous energy of storage is changed into fluorescence.
Specifically, photochromic ink layer contains photochromic pigment, illumination parameter includes the intensity of light, the ripple of light
It is long etc..When illumination parameter changes, photochromic pigment reacts, so that different face is presented in photochromic ink layer
Color.For example, when user is using the mobile phone of fingerprint recognition module 100 is equipped with from indoor moving to outdoor, illumination parameter changes,
And then it can cause discoloration label layer 140 that different colors is presented.
Temperature sensing color changing ink layer then contains temperature sensing color changing pigment, and different face is presented in temperature change for temperature sensing color changing pigment
Color.For example, mobile phone can generate heat in use, and with the lasting of usage time or break down, the rise of its constant temperature.
And for different temperature, temperature sensing color changing ink layer can show different colors, so as to intuitively show fingerprint recognition mould
The temperature of group 100, consequently facilitating heat release state during observation operating handset.
Photic storage light ink layer then contains photic light-storing paint.Under the environment of daytime or illumination abundance, photic storage light face
Material absorbs luminous energy and stored；And at night or under the weaker environment of illumination, the energy of storage is then converted into by photic light-storing paint
Luminous energy, and fluorescence is sent, so as to which the change of the light and shade of photic storage light ink layer can be realized.Moreover, photic storage light ink layer is at night
Fluorescence can be discharged, and the remaining light time is longer, and the handheld terminal of fingerprint recognition module 100 is equipped with simultaneously so as to facilitate night to find
Convenient operation fingerprint recognition module 100.
Color change can be presented when illumination parameter or temperature parameter change in discoloration label layer 140.Moreover, become colour code
Knowing the color of layer 140 can be shown through its surface, so as to show different colours on the surface of fingerprint recognition module 100
Predetermined pattern.When fingerprint recognition module 100 is applied into product, with the switching of user's local environment, fingerprint recognition mould
Respective change can also occur for the illumination parameter and temperature parameter of 100 local environments of group, so as to cause to change colour what label layer 140 was presented
Color or bright-dark degree also change therewith, and then cause user to experience the outward appearance face of a variety of different fingerprint recognition modules 100
Color.
In the present embodiment, fingerprint recognition module 100 also includes the protective layer 150 of light-permeable.The silk-screen of protective layer 150 is in change
The surface of color label layer 140.
Protective layer 150 primarily serves the effect of protection discoloration label layer 140, and the label layer 140 that prevents from changing colour is in fingerprint recognition
It is worn in the application process of module 100.The light-permeable of protective layer 150.Wherein, protective layer 150 can be all-transparent, also can portion
Divide transparent.
Further, in the present embodiment, protective layer 150 is UV cured layers or hard ink layer.
Specifically, can be by the surface silk-screen UV glue or ink in discoloration label layer 140, and it is formed protection after solidifying
Layer 150.Therefore, the thickness of protective layer 150 is can be controlled in smaller range.Specifically in the present embodiment, the thickness of protective layer 150
For 26~28 microns.
If the thickness of protective layer 150 is excessive, the distance mistake of the surface distance touch location of fingerprint sensor 120 can be caused
Greatly, so as to influence the conduction of pressure signal, and then the sensitivity deficiency of fingerprint recognition module 100 is caused.And the thickness of protective layer 150
Spend small, then intensity decreases do not have the effect of protection.When the thickness of protective layer 150 is 26~28 microns, protection can be taken into account and made
With and fingerprint recognition module 100 sensitivity.
In the present embodiment, fingerprint recognition module 100 also includes silk-screen in the surface of encapsulated layer 130 and in pre-set color
Dyed layer 160.Dyed layer 160 is between discoloration label layer 140 and encapsulated layer 130.
Specifically, the color of dyed layer 160 can be the random colors such as red, orange, yellow, green, indigo, azure, purple, and the face of dyed layer 160
Color then determines the priming color of fingerprint recognition module 100.Wherein, dyed layer 160 can by adulterate the ink silk screen printing of pigment in
On encapsulated layer 130 and it is formed by curing, its thickness is 6 to 8 microns.The color of dyed layer 160 can match somebody with somebody form and aspect with handheld terminal
Together, so as to keeping the uniformity of handheld terminal appearance color.
Further, specifically in the present embodiment, the thickness of dyed layer 160 is 6~8 microns.
When the thickness of dyed layer 160 is less than 6 microns, itself color is shallower, and its color can not preferably be reflected in fingerprint
Identify the surface of module 100.And the thickness of dyed layer be more than 8 microns when, then can cause pressure signal in fingerprint recognition module 100
Conduction is obstructed, so as to reduce the sensitivity of fingerprint recognition module 100.When the thickness of dyed layer 160 is 6~8 microns, it can meet
While color depth requirement, the influence to the sensitivity of fingerprint recognition module 100 is reduced as far as possible.
In the present embodiment, fingerprint recognition module 100 also includes silk-screen in the prime coat 170 on encapsulated layer 130, prime coat
170 between encapsulated layer 130 and dyed layer 160.
, can be in the surface silk-screen priming paint of encapsulated layer 130, to form prime coat specifically, before color layers 160 are formed
170.Priming paint belongs to intermediate, can adhere to well with dyed layer 160 and encapsulated layer 130.Therefore, prime coat 170 can rise
To transitional function, increase the reliability connected between color layers 160 and encapsulated layer 130.Specifically in the present embodiment, prime coat
170 thickness is can be controlled between 6 to 8 microns.
When the thickness of prime coat 170 is less than 6 microns, film layer is too thin, it is impossible to connection dyed layer 160 and encapsulated layer well
130.And the thickness of prime coat 170 then may cause surface smoothness insufficient, so as to shadow when being more than 8 microns because film layer is too thick
Ring the attachment of dyed layer 160.When the thickness of prime coat 170 is 6~8 microns, the connection between dyed layer 160 and encapsulated layer 130
It is more firm.
In the present embodiment, change colour label layer 140 be single layer structure, and change colour label layer 140 comprising photochromic pigment,
The mixture of any one or two kinds and the above in heat discoloration pigment and photic light-storing paint.
For example, when the label layer 140 that changes colour is the combination containing photochromic label layer and heat discoloration label layer, need to first by
Photochromic pigment is well mixed with heat discoloration pigment in ink, then by mixture silk-screen in the side of encapsulated layer 130, with
Form discoloration label layer 140.Therefore, the label layer 140 that changes colour only has a Rotating fields, therefore is only needed when the label layer 140 that changes colour is molded
One-step print, effectively simplify technological process.Moreover, the thickness of discoloration label layer 140 is can be controlled in smaller range.Specifically
, discoloration label layer 140 is 6 to 8 microns.
In another embodiment, the label layer 140 that changes colour is sandwich construction, and the label layer 140 that changes colour is photochromic oil
Any two kinds in layer of ink, heat discoloration ink layer and photic storage light ink layer and the above stack gradually the stepped construction to be formed.
For example, when discoloration label layer 140 is the combination of layer containing photochromic ink and heat discoloration ink layer, can be first by light
Cause camouflage paint and heat discoloration pigment to be mixed in respectively in ink, obtain two kinds of mixtures；Further, temperature-sensitive will be contained to become
Silk-screen is in the surface of encapsulated layer 130 successively for color pigment and the ink mixture of photochromic pigment, so as to obtain double-layer structure, light
The discoloration label layer 140 for causing color shifting ink layer to be combined with heat discoloration ink layer.Therefore, the label layer 140 that changes colour is sandwich construction,
Therefore the interference mutual in color change of each film layer is smaller.
In the present embodiment, fingerprint recognition module 100 also includes frame 180.Frame 180 is around protective layer 150 and encapsulation
Layer 130 it is circumferentially disposed.
Specifically, frame 180 is generally metal framework structure, in annular.What encapsulated layer 130 and protective layer 150 were formed
Stepped construction is held in frame 180, so that frame 180 is played a supporting role to whole fingerprint recognition module 100, Jin Erbian
It is installed in by fingerprint recognition module 100 on the main frame of handheld terminal.
In the present embodiment, fingerprint recognition module 100 also includes flexible PCB 190.Flexible PCB 190 is arranged at base
The side of fingerprint sensor 120 backwards of plate 110 simultaneously electrically connects with substrate 110.
When fingerprint recognition module 100 is applied into handheld terminal, flexible PCB 190 is used for connecting substrate 110 and main frame
In mainboard.And flexible PCB 190 has pliability, therefore can be easy to enter walking line in narrow space in host shell.
Specifically, one end of flexible PCB 190 be provided with can plug connector (not shown), and insert corresponding to being provided with mainboard
Mouthful, consequently facilitating fingerprint recognition module 100 is electrically connected into mainboard.
Further, in the present embodiment, fingerprint recognition module 100 also includes stiffening plate 200.Stiffening plate 200 is arranged at
Flexible PCB 190 is backwards to the side of substrate 110.
Because flexible PCB 190 has pliability, thus it is easily curved in the fitting installation process of fingerprint recognition module 100
Folding, so as to cause printed circuit to be thereon damaged., can be to flexibility and stiffening plate 200 can be as the substrate of flexible PCB 190
Circuit board 190 plays support and protective effect.
Above-mentioned fingerprint recognition module 100 and handheld terminal, the predetermined pattern that discoloration label layer 140 is formed can play mark and make
With.Further, when illumination parameter or temperature parameter change, change colour label layer 140 in photochromic ink layer or
The color of heat discoloration ink layer, which can correspond to, to be changed, or photic storage light ink layer can carry out energy storage or luminous, so that in advance
If pattern shows color and light and shade change.When user is using handheld terminal, continuity and residing ring with usage time
Respective change can occur for the switching in border, illumination parameter and temperature parameter, so as to cause the color or light and shade journey of discoloration label layer 140
Degree also changes therewith.It is therefore not necessary to change handheld terminal, user can experience the outward appearance face of a variety of different fingerprint recognition modules
Color, therefore Consumer's Experience is effectively lifted.
The utility model also provides a kind of fingerprint recognition module preparation method.Referring to Fig. 2, one implementation of the utility model
Fingerprint recognition module preparation method in example, including step S110 and S120：
A kind of step S110, there is provided semi-finished product.Semi-finished product include substrate, fingerprint sensor and encapsulated layer, fingerprint sensor
It is arranged at substrate side and is electrically connected with substrate, fingerprint sensor package is in encapsulated layer.
Wherein, fingerprint recognition mould in the structure of substrate, fingerprint sensor and encapsulated layer and annexation and above-described embodiment
Group 100 it is identical, therefore will not be repeated here.
Step S120, discoloration label layer is formed on the surface of encapsulated layer by way of silk-screen.
Specifically, can use by the silk screening ink doped with camouflage paint in the surface of encapsulated layer, and it is formed by curing
Change colour label layer.The label layer that changes colour forms predetermined pattern, and the label layer that changes colour is photochromic ink layer, heat discoloration ink layer
And any one or two kinds in photic storage light ink layer and the combination of the above.
Specifically, discoloration label layer 140 is in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer
Any one or two kinds and the above combination.That is, the type of discoloration label layer 140 includes 7 kinds of possibility, it is respectively：
Discoloration label layer 140 is any one in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer；Discoloration
Label layer 140 is any two kinds of combination in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer；Become
Color label layer 140 is the combination of photochromic label layer, heat discoloration label layer and photic storage light ink layer three.
Wherein, the color of photochromic ink layer changes with illumination parameter is corresponding, and the color of temperature sensing color changing ink layer is with temperature
The corresponding change of parameter is spent, photic storage light ink layer is used to store luminous energy and the luminous energy of storage is changed into fluorescence.
Specifically, photochromic ink layer contains photochromic pigment, illumination parameter includes the intensity of light, the ripple of light
It is long etc..When illumination parameter changes, photochromic pigment reacts, so that different face is presented in photochromic ink layer
Color.For example, when user is using the mobile phone of fingerprint recognition module is equipped with from indoor moving to outdoor, illumination parameter changes, and enters
And the different color of label layer presentation that changes colour can be caused.
Temperature sensing color changing ink layer then contains temperature sensing color changing pigment, and different face is presented in temperature change for temperature sensing color changing pigment
Color.For example, mobile phone can generate heat in use, and with the lasting of usage time or break down, the rise of its constant temperature.
And for different temperature, temperature sensing color changing ink layer can show different colors, so as to intuitively show fingerprint recognition mould
The temperature of group, consequently facilitating heat release state during observation operating handset.
Photic storage light ink layer then contains photic light-storing paint.Under the environment of daytime or illumination abundance, photic storage light face
Material absorbs luminous energy and stored；And at night or under the weaker environment of illumination, the energy of storage is then converted into by photic light-storing paint
Luminous energy, and fluorescence is sent, so as to which the change of the light and shade of photic storage light ink layer can be realized.Moreover, photic storage light ink layer is at night
Fluorescence can be discharged, and the remaining light time is longer, so as to facilitate night to find to be equipped with the handheld terminal of fingerprint recognition module and square
Convenient to operate fingerprint recognition module.
Color change can be presented when illumination parameter or temperature parameter change in discoloration label layer.Moreover, discoloration mark
The color of layer can be shown through its surface, so as to show the default figure of different colours on the surface of fingerprint recognition module
Case.When fingerprint recognition module is applied into product, with the switching of user's local environment, fingerprint recognition module local environment
Respective change can also occur for illumination parameter and temperature parameter, so as to cause change colour label layer present color or bright-dark degree also with
Change, and then cause user to experience the appearance colors of a variety of different fingerprint recognition modules.
In one embodiment, after step S120, in addition to step：In discoloration label layer by way of silk-screen
Surface forms the protective layer of light-permeable.
Protective layer primarily serves the effect of protection discoloration label layer, prevents application of the label layer in fingerprint recognition module that change colour
During be worn.Protective layer light-permeable.Wherein, protective layer can be all-transparent, also can be partially transparent.
Specifically, can be by the surface silk-screen UV glue or ink in discoloration label layer, and it is formed protective layer after solidifying.
Therefore, the thickness of protective layer is can be controlled in smaller range.Specifically, between the thickness of protective layer is 26 to 28 microns.
In one embodiment, before step S110, in addition to step：On the surface of encapsulated layer by way of silk-screen
Form the dyed layer with pre-set color.
Specifically, the color of dyed layer can be the random colors such as red, orange, yellow, green, indigo, azure, purple, and the color of dyed layer is then determined
The priming color of fingerprint recognition module is determined.Wherein, dyed layer can be by adulterating the ink silk screen printing of pigment on encapsulated layer and solid
Change and formed, its thickness is 6 to 8 microns.The color of dyed layer can be identical with the color matching of handheld terminal, so as to keep handheld terminal
The uniformity of appearance color.
Further, in one embodiment, being formed in the mode above by silk-screen on the surface of encapsulated layer has in advance
If before the step of dyed layer of color, in addition to step：By way of silk-screen prime coat is formed on the surface of encapsulated layer.
Specifically, before color layers are formed, need first in the surface silk-screen priming paint of encapsulated layer, to form prime coat.Priming paint
The thickness of layer is can be controlled between 6 to 8 microns.Wherein, prime coat can play transitional function, so as to increase color layers and encapsulated layer
Between adhesive force.
In one embodiment, step S120 includes：By photochromic pigment, heat discoloration pigment and photic light-storing paint
In any one or two kinds and the above uniformly mixed in ink, to obtain ink mixture；By ink mixture silk-screen in
The surface of encapsulated layer, to form the discoloration label layer of single layer structure.
Specifically, ink mixture may include 7 types according to the species difference of the camouflage paint of mixing.According to discoloration
The demand of label layer, suitable camouflage paint is selected be mixed to get required ink mixture, then by ink mixture silk
In print and encapsulated layer.
For example, when the label layer that changes colour is the combination containing photochromic label layer and heat discoloration label layer, need to be first by light
Camouflage paint is caused to be well mixed with heat discoloration pigment in ink, then by ink mixture silk-screen in the side of encapsulated layer, with
Form discoloration label layer.Therefore, discoloration label layer only has a Rotating fields, thus only need to once spray when discoloration identifies formable layer or
Printing, effectively simplifies technological process.Moreover, the thickness of discoloration label layer is can be controlled in smaller range.Specifically, discoloration
Label layer is 6 to 8 microns.
In another embodiment, step S120 includes：By photochromic pigment, heat discoloration pigment and photic storage light face
Any two kinds in material and the above are mixed in ink respectively, to obtain at least two ink mixtures；By at least two ink
Silk-screen is in the surface of encapsulated layer successively for mixture, to form the discoloration label layer of sandwich construction.
Specifically, photochromic pigment, heat discoloration pigment and photic light-storing paint are mixed in ink respectively, can obtain
To the ink mixture of 3 types.Further, according to the demand to the label layer that changes colour, ink mixture in the above 3 may be selected
In carry out silk-screen successively any two or three.
, can first will be photic for example, when discoloration label layer is the combination of layer containing photochromic ink and heat discoloration ink layer
Camouflage paint and heat discoloration pigment are mixed in ink respectively, obtain two kinds of ink mixtures；Further, temperature-sensitive will be contained
Silk-screen is in the surface of encapsulated layer successively for camouflage paint and the ink mixture of photochromic pigment, so as to obtain double-layer structure, light
The discoloration label layer for causing color shifting ink layer to be combined with heat discoloration ink layer.Therefore, resulting discoloration label layer is multilayer laminated
Structure, therefore the interference mutual in color change of each film layer is smaller.
Family can be used being changed without handheld terminal for above-mentioned fingerprint recognition module preparation method, resulting fingerprint recognition module
On the premise of experience the appearance colors of a variety of different fingerprint recognition modules, therefore Consumer's Experience is effectively lifted.In addition, institute
Each film layer of obtained fingerprint recognition module is stacked gradually by way of silk-screen, and without bonding between film layer, therefore fingerprint is known
The overall thickness of other module is smaller.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (14)
- A kind of 1. fingerprint recognition module, it is characterised in that including：Substrate；Fingerprint sensor, it is arranged at the substrate side and is electrically connected with the substrate；Encapsulated layer positioned at the substrate side, the fingerprint sensor package is in the encapsulated layer；AndSilk-screen forms predetermined pattern, the discoloration label layer in the discoloration label layer on the encapsulated layer, the discoloration label layer For any one in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer or two kinds and the group of the above Close；Wherein, the color of the photochromic ink layer changes with illumination parameter is corresponding, the color of the temperature sensing color changing ink layer Change with temperature parameter is corresponding, the photic storage light ink layer is used to store luminous energy and the luminous energy of storage is changed into fluorescence.
- 2. fingerprint recognition module according to claim 1, it is characterised in that the thickness of the discoloration label layer is 4~10 Micron.
- 3. fingerprint recognition module according to claim 1, it is characterised in that also including silk-screen in the discoloration label layer table The protective layer in face, the protective layer light-permeable.
- 4. fingerprint recognition module according to claim 3, it is characterised in that the protective layer is UV cured layers or hard oil Layer of ink.
- 5. fingerprint recognition module according to claim 3, it is characterised in that the thickness of the protective layer is 26~28 micro- Rice.
- 6. fingerprint recognition module according to claim 1, it is characterised in that also including silk-screen in the surface of the encapsulated layer And in the dyed layer of pre-set color, the dyed layer is between the discoloration label layer and the encapsulated layer.
- 7. fingerprint recognition module according to claim 6, it is characterised in that the thickness of the dyed layer is 6~8 microns.
- 8. fingerprint recognition module according to claim 6, it is characterised in that also including silk-screen in the bottom on the encapsulated layer Enamelled coating, the prime coat is between the encapsulated layer and the dyed layer.
- 9. fingerprint recognition module according to claim 8, it is characterised in that the thickness of the prime coat is 6~8 microns.
- 10. the fingerprint recognition module according to any one of claim 1 to 9, it is characterised in that the discoloration label layer is single Rotating fields, and the discoloration label layer is comprising any one in photochromic pigment, heat discoloration pigment and photic light-storing paint Kind or two kinds and the above mixture.
- 11. the fingerprint recognition module according to any one of claim 1 to 9, it is characterised in that the discoloration label layer is more Rotating fields, and the discoloration label layer is appointing in photochromic ink layer, heat discoloration ink layer and photic storage light ink layer Two kinds of meaning and the above stack gradually the stepped construction to be formed.
- 12. fingerprint recognition module according to claim 3, it is characterised in that the fingerprint recognition module also includes frame, The frame is circumferentially disposed around the protective layer and the encapsulated layer.
- 13. fingerprint recognition module according to claim 1, it is characterised in that the fingerprint recognition module also includes flexibility Circuit board, the flexible PCB are arranged at the side of the fingerprint sensor backwards of the substrate and are electrically connected with the substrate Connect.
- A kind of 14. handheld terminal, it is characterised in that including：Main frame；Fingerprint recognition module as described in above-mentioned any one of claim 1~13, the substrate electrically connect with the main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884054.8U CN206975663U (en) | 2017-07-20 | 2017-07-20 | Fingerprint recognition module and handheld terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884054.8U CN206975663U (en) | 2017-07-20 | 2017-07-20 | Fingerprint recognition module and handheld terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975663U true CN206975663U (en) | 2018-02-06 |
Family
ID=61402988
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720884054.8U Expired - Fee Related CN206975663U (en) | 2017-07-20 | 2017-07-20 | Fingerprint recognition module and handheld terminal |
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| Country | Link |
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| CN (1) | CN206975663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681687A (en) * | 2018-03-26 | 2018-10-19 | 广东欧珀移动通信有限公司 | Cover board and preparation method thereof, fingerprint recognition module and electronic device |
| CN110795962A (en) * | 2018-08-01 | 2020-02-14 | 上海箩箕技术有限公司 | Optical fingerprint sensor module and forming method thereof |
-
2017
- 2017-07-20 CN CN201720884054.8U patent/CN206975663U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681687A (en) * | 2018-03-26 | 2018-10-19 | 广东欧珀移动通信有限公司 | Cover board and preparation method thereof, fingerprint recognition module and electronic device |
| CN110795962A (en) * | 2018-08-01 | 2020-02-14 | 上海箩箕技术有限公司 | Optical fingerprint sensor module and forming method thereof |
| CN110795962B (en) * | 2018-08-01 | 2023-08-15 | 上海箩箕技术有限公司 | Optical fingerprint sensor module and forming method thereof |
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Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: OFilm Microelectronics Technology Co.,Ltd. Address after: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330029 Nanchang Avenue, Nanchang high tech Zone, Nanchang, Jiangxi 1189 Patentee before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. |
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