CN209492257U - Unlocked by fingerprint mobile phone protects photocuring film - Google Patents
Unlocked by fingerprint mobile phone protects photocuring film Download PDFInfo
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- CN209492257U CN209492257U CN201821497716.7U CN201821497716U CN209492257U CN 209492257 U CN209492257 U CN 209492257U CN 201821497716 U CN201821497716 U CN 201821497716U CN 209492257 U CN209492257 U CN 209492257U
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Abstract
The utility model discloses a kind of unlocked by fingerprint mobile phone protection photocuring film; the transparent SRF film of the transparent PC film of modification, bottom including upper layer; solvent-free OCA optics colloid and hardening UV glue are provided between two membranes; the solvent-free OCA optical cement is shown consideration for together in the transparent PC film of modification, and the hardening UV sticker is together in transparent SRF film；The upper surface of the transparent PC film of modification is also printed with anti-reflection ink layer.By transparent PC will be modified and transparent SRF is combined with each other, in conjunction with the advantages of two kinds of optical materials of PC and SRF, it is suitable for shielding lower unlocked by fingerprint.In addition to this, also by the way that more excellent light transmittance can be obtained by solvent-free OCA optics colloid and hardening UV glue bilayer fitting between two film layers.
Description
Technical field
The utility model relates to safeguard film for cellular phone field technologies, refer in particular to a kind of unlocked by fingerprint mobile phone protection photocuring
Film.
Background technique
Unlocked by fingerprint identification is completed below screen glass, is mainly reached using infrared or optical technology through unlike material
The process of fingerprint recognition.Light is a kind of shear wave, and the direction of propagation is consistent with direction of vibration, influences the following several because being known as of rate
Point: 1, the interference of light: N light wave is mutually superimposed when meeting in space, reinforces always in some regions, in another part area
Domain slackens always, will cause stable strength distribution phenomenon.
2, the polarization of light: the phenomenon that spatial distribution of light wave electric vector vibration loses symmetry for the direction of propagation of light.
3, the scattering (reflection) of light: when light passes through inhomogeneous medium, segment beam deviates former direction and dispersive propagation.
Based on this, at present on the market the material with preferable translucidus have it is following several: COP, PC, TAC, SRF and general
Logical PET.Wherein, COP, PC, TAC solve light interference and light polarization, however these materials itself have again it is irremediable
Defect: COP be it is armorphous, PC is linear molecule, because without the orientation of light, low phase difference can perfectly avoid light
Caused by interference and polarization the problem of fingerprint recognition sensitivity decline.However, COP is frangible, PC hardness is too low (hardness < 1H).TAC
Excellent optical characteristics, but it is not resistant to water, and rigidity is not enough.SRF and common PET solve the interference of light and the scattering of light, SRF high phase
Potential difference, but since its material stiffness is inadequate, post-processing processing procedure performance is poor.Common PET mechanical strength with higher, but phase
Potential difference is lower, and only △ φ is 1000~3000.
Therefore, COP, PC, TAC, SRF and common PET cannot alone serve as safeguard film for cellular phone finished product.Need this field
Technical staff develops with high intensity, translucidus, suitable for the safeguard film for cellular phone of unlocked by fingerprint.
Utility model content
In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of fingerprint solution
It locks mobile phone and protects photocuring film, safeguard film for cellular phone can be made to be suitable under screen in conjunction with the advantages of two kinds of optical materials of PC and SRF
Unlocked by fingerprint.
To achieve the above object, the utility model is using following technical solution:
A kind of unlocked by fingerprint mobile phone protection photocuring film, the transparent SRF film of the transparent PC film of modification, bottom including upper layer,
Solvent-free OCA optics colloid and hardening UV glue are provided between two membranes, the solvent-free OCA optical cement is shown consideration for together in modification
Transparent PC film, the hardening UV sticker is together in transparent SRF film；The upper surface of the transparent PC film of modification is also printed with anti-reflection ink
Layer.
As a preferred embodiment, the anti-reflection ink layer with a thickness of 5-8 μm.
As a preferred embodiment, the transparent SRF band with a thickness of 50 μm.
As a preferred embodiment, the transparent PC film 11 of the modification with a thickness of 30 μm.
As a preferred embodiment, the thickness of the solvent-free OCA optics colloid is respectively 5-8 μm.
As a preferred embodiment, the thickness of the hardening UV glue is respectively 10-12 μm.
The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Scheme is it is found that modification transparent PC and transparent SRF are combined with each other by the utility model, since PC material is linear molecule, thus
The not orientation of light, low phase difference, phase difference are lower than 20, and fingerprint caused by can perfectly avoiding the interference of light and polarizing is known
The problem of other sensitivity declines.And SRF material has the phase difference of superelevation, phase difference is greater than 8000, therefore not only has excellent
Optical property, also have anti-ultraviolet function, prevent from directly handing over polarisation sunglasses, prevent rainbow line, be suitable as hand
It machine protective film and is entirely capable of reaching unlocked by fingerprint demand.In addition to this, also by passing through solvent-free OCA light between two film layers
More excellent light transmittance can be obtained by learning colloid and hardening UV glue bilayer fitting.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the transparent PC and transparent SRF complex flow schematic diagram of the embodiment of the utility model.
Fig. 2 is that the composite membrane of the embodiment of the utility model is coated with improved solvent-free OCA optics colloid and hardening UV glue
Change schematic diagram by light transmittance before and after photocuring.
Fig. 3 is the structure of composite membrane schematic diagram of the embodiment of the utility model.
Description of drawing identification:
1, modified transparent PC band 2, transparent SRF band
3, photocuring film is protected with board 10, unlocked by fingerprint mobile phone
11, modified transparent PC film 12, transparent SRF film
13, solvent-free OCA optics colloid 14, hardening UV glue
15, anti-reflection ink layer.
Specific embodiment
It please refers to shown in Fig. 1 to Fig. 3, that show the specific structure of the preferred embodiment of the utility model and method,
It is a kind of unlocked by fingerprint mobile phone protection photocuring film, comprising the following steps:
Step 1 takes the transparent PC band 1 of the modification of phase difference < 20, is wound into PC material volume.In the present embodiment, the modification
The refractive index 1.585 of transparent PC band 1, light transmittance 95%, impact resistant strength value 140j/m, Rockwell hardness 77M scale, bending die
2230Mpa, tensile yield point 61Mpa are measured, tension failure point is 140Mpa, phase difference 12.
One end of PC material volume is placed into draw in printing machine and be unfolded by step 2, in the anti-reflection ink of surface printing photocuring,
One end of the transparent PC band 1 of modification with anti-reflection ink layer 15 is wound into material volume again.
Wherein, the anti-reflection ink of the photocuring is to belong to inorganic and organic Hybrid Materials, takes full advantage of the advantage of the two,
Organic polymer part is conducive to the toughness that forms a film and improve, and inorganic part be then conducive to assign the high adhesive force of film layer, hardness,
Ageing-resistant, anti-pollution etc..The adhesive force of this anti-reflection ink of photocuring and transparent PC band is higher, and ultraviolet light can be used
Solidification, does not need high temperature, curing rate, thus the adhesive of heat cure is needed relative to tradition, and the utility model can drop
Low energy consumption improves production efficiency.In addition, use hollow silica and nanometer silicon dioxide particle be easier to construct it is porous
Film layer, reduce refractive index, improve the transmitance of light.
Step 3 takes the transparent SRF band 2 of phase difference > 8000, is wound into SRF material volume.The transparent SRF band 2 it is saturating
Light rate is 92.9%, mist degree 2.4%, and position phase difference value is 10500 in the face tensile strength MD 83Mpa, TD 323Mpa, RO.
Conventional mobile phone film use PET material because in the face PET phase difference difference, light source penetrate device after generate not
With the interference colours (Interference Color) of frequency color, phase difference is bigger in face, and the interference colours color of generation is more shallow, band
Boundary line is more unclear.And the utility model prevents and the polarisation sun due to using superelevation phase difference (phase difference value 10500)
Glasses are directly handed over, and rainbow line will not be generated, and when the absorption axiss of the absorption axiss of display polarizer and polarisation sunglasses are directly handed over, are produced
The linear polarization of raw black view display will not generate straight friendship with sunglasses, prevent through elliptical polarized light is switched to after transparent SRF
Only black picture generates.
Step 4 draws the same board 3 of the SRF material volume of the PC material volume of step 2 and step 3, in PC material volume and SRF material volume
It is respectively coated improved solvent-free OCA optics colloid 13 on the face of preparation fitting between the two and hardening UV glue 14 passes through light
Solidify compound, wherein the refractive index of solvent-free OCA optics colloid 13: 1.608, the refractive index of hardening UV glue 14: 1.478.
More excellent light transmittance can be obtained by solvent-free OCA optics colloid 13 and the double-deck fitting of hardening UV glue 14.
According to phase difference formula:
(wherein, n is medium refraction index, and λ is the wavelength in medium, and x is wave-path) by phase difference formula it can be concluded that, phase
Difference is not only related with wave-path x, also related with medium refraction index.
Phase difference of the two beam coherent lights in P point interference point are as follows:
Wave-path x and refractive index difference are the principal elements for influencing phase difference.Therefore, A: in the range of x can be permitted, selection is closed
Suitable thickness (wave path-difference), cannot infinity (periodicity of light wave).B: refractive index difference maximizes, 1. the utility model selects
The refractive index 1.585 of PC, 2. solvent-free 4 refractive index of OCA: 1.608,3. UV hardened layer refractive index: 1.478.In this way, the 3rd step
After before the solidification of OCA optical cement body heat is compound and compound, the light transmittance map of light is referring to fig. 2 under different wave length.
By two curve comparisons of Fig. 2 it is found that the OCA optical cement body heat of application enhancements is solid compound in the double-deck fitting, so that
Protective film has the translucency of excellent light, while good light stability, shields lower unlocked by fingerprint high sensitivity.
Step 5, bilayer fitting are closed back to face paste as shown in Figure 1, laminating type is selected with volume in the same direction.Obtained after fitting with
Lower unlocked by fingerprint mobile phone protects 10 finished product of photocuring film: as shown in figure 3, structure includes the transparent PC film 11 of modification, the bottom on upper layer
Transparent SRF film 12, solvent-free OCA optics colloid 13 and hardening UV glue 14 are provided between two membranes, wherein solvent-free
OCA optics colloid 13 fits in modified transparent PC film 11, and hardening UV glue 14 fits in transparent SRF film 12.And the modification
The upper surface of transparent PC film 11 is also printed with anti-reflection ink layer 15.
Wherein, the anti-reflection ink layer 15 with a thickness of 5-8 μm.The transparent SRF band 2 with a thickness of 50 μm.It is described to change
The transparent PC film 11 of property with a thickness of 30 μm.The thickness of the solvent-free OCA optics colloid 13 and hardening UV glue 14 is respectively 5-8 μm
With 10-12 μm.It is 100-120 μm that the unlocked by fingerprint mobile phone, which protects the total height of photocuring film 10,.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (6)
1. a kind of unlocked by fingerprint mobile phone protects photocuring film, it is characterised in that: the transparent PC film of modification, bottom including upper layer it is saturating
Bright SRF film, is provided with solvent-free OCA optics colloid and hardening UV glue between two membranes, and the solvent-free OCA optical cement is shown consideration for
Together in the transparent PC film of modification, the hardening UV sticker is together in transparent SRF film；The upper surface of the transparent PC film of modification is also printed with
Anti-reflection ink layer.
2. unlocked by fingerprint mobile phone according to claim 1 protects photocuring film, it is characterised in that: the anti-reflection ink layer
With a thickness of 5-8 μm.
3. unlocked by fingerprint mobile phone according to claim 1 protects photocuring film, it is characterised in that: the transparent SRF band
With a thickness of 50 μm.
4. unlocked by fingerprint mobile phone according to claim 1 protects photocuring film, it is characterised in that: the transparent PC film of modification
11 with a thickness of 30 μm.
5. unlocked by fingerprint mobile phone according to claim 1 protects photocuring film, it is characterised in that: the solvent-free OCA light
The thickness for learning colloid is respectively 5-8 μm.
6. unlocked by fingerprint mobile phone according to claim 1 protects photocuring film, it is characterised in that: the thickness of the hardening UV glue
Degree is respectively 10-12 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497716.7U CN209492257U (en) | 2018-09-13 | 2018-09-13 | Unlocked by fingerprint mobile phone protects photocuring film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497716.7U CN209492257U (en) | 2018-09-13 | 2018-09-13 | Unlocked by fingerprint mobile phone protects photocuring film |
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| Publication Number | Publication Date |
|---|---|
| CN209492257U true CN209492257U (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821497716.7U Active CN209492257U (en) | 2018-09-13 | 2018-09-13 | Unlocked by fingerprint mobile phone protects photocuring film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296172A (en) * | 2020-02-24 | 2021-08-24 | 宁波激智科技股份有限公司 | Collimation film, interference reduction collimation film, full-lamination collimation film and image recognition module |
-
2018
- 2018-09-13 CN CN201821497716.7U patent/CN209492257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296172A (en) * | 2020-02-24 | 2021-08-24 | 宁波激智科技股份有限公司 | Collimation film, interference reduction collimation film, full-lamination collimation film and image recognition module |
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