CN108943979B - Manufacturing method of fingerprint unlocking mobile phone protection photo-curing film - Google Patents
Manufacturing method of fingerprint unlocking mobile phone protection photo-curing film Download PDFInfo
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- CN108943979B CN108943979B CN201811067877.7A CN201811067877A CN108943979B CN 108943979 B CN108943979 B CN 108943979B CN 201811067877 A CN201811067877 A CN 201811067877A CN 108943979 B CN108943979 B CN 108943979B
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- 238000000016 photochemical curing Methods 0.000 title claims abstract description 23
- 230000004224 protection Effects 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 53
- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 238000003475 lamination Methods 0.000 claims abstract description 18
- 239000000084 colloidal system Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000007639 printing Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 238000002834 transmittance Methods 0.000 claims description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 230000000844 anti-bacterial effect Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 239000003504 photosensitizing agent Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 230000003667 anti-reflective effect Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000222122 Candida albicans Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940095731 candida albicans Drugs 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
- B32B38/145—Printing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a manufacturing method of a fingerprint unlocking mobile phone protection photo-curing film, which comprises the following steps: step 1, taking a modified transparent PC belt with a phase difference of <20, and winding the modified transparent PC belt into a PC material roll; step 2, printing photo-curing transparency-increasing ink on the surface of the PC material roll; step 3, taking a transparent SRF belt with phase difference of >8000, and rolling the transparent SRF belt into an SRF material roll; and 4, drawing the PC material roll in the step 2 and the SRF material roll in the step 3 by using the same machine table, respectively coating an improved solvent-free OCA optical colloid and a hardening UV adhesive on a surface of the prepared lamination between the PC material roll and the SRF material roll, and compositing by photo-curing, wherein the refractive index of the solvent-free OCA optical colloid is as follows: 1.608, refractive index of the hardened UV glue: 1.478; and step 5, double-layer lamination, wherein the lamination mode is co-winding and co-directional back-to-back lamination. The fingerprint unlocking mobile phone protection photo-curing film prepared by the method can combine the advantages of two optical materials, namely PC and SRF, and is suitable for under-screen fingerprint unlocking.
Description
Technical Field
The invention relates to the technical field of mobile phone protection films, in particular to a manufacturing method of a fingerprint unlocking mobile phone protection photo-curing film.
Background
Fingerprint unlocking recognition is completed below the screen glass, and the fingerprint recognition process is achieved through different materials mainly by utilizing infrared or optical technology. Light is a transverse wave, the propagation direction of which is consistent with the vibration direction, and factors affecting the transmittance are as follows:
1. interference of light: n light waves are mutually overlapped when meeting in space, are always strengthened in certain areas, and are always weakened in other partial areas, so that stable intensity distribution phenomenon can be caused.
2. Polarization of light: the spatial distribution of the electric vector vibration of the light waves is a phenomenon of losing symmetry with respect to the propagation direction of the light.
3. Scattering (reflection) of light: when light passes through the non-uniform medium, part of the light beam disperses and propagates away from the original direction.
Based on this, the materials with better light transmittance on the market at present are as follows: COP, PC, TAC, SRF and plain PET. Among them, COP, PC, TAC solves the interference of light and polarization of light, however these materials have their own irreparable drawbacks: COP is amorphous, and PC is linear molecule, so that light orientation is not realized, phase difference is low, and the problems of light interference and fingerprint identification sensitivity reduction caused by polarization can be perfectly avoided. However, COP is brittle and PC hardness is too low (hardness < 1H). TAC has excellent optical properties, but is not water-resistant and not sufficiently rigid. SRF and general PET solve interference and scattering of light, SRF has a high phase difference, but has poor post-processing process performance due to insufficient material rigidity. The common PET has higher mechanical strength, but lower phase difference, and only delta phi is 1000-3000.
Thus, neither COP, PC, TAC, SRF nor ordinary PET alone can be used as a finished phone protective film. It is required for those skilled in the art to develop a mobile phone protection film having high strength, light transmittance, and suitable for fingerprint unlocking.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its main objective is to provide a method for manufacturing a photo-cured film for protecting a fingerprint unlocking mobile phone, which can combine the advantages of two optical materials, namely PC and SRF, so that the mobile phone protecting film is suitable for under-screen fingerprint unlocking.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a manufacturing method of a fingerprint unlocking mobile phone protection photo-curing film comprises the following steps:
step 1, taking a modified transparent PC belt with a phase difference of <20, and winding the modified transparent PC belt into a PC material roll;
step 2, placing one end of the PC material roll into a printer to be drawn and unfolded, printing photo-curing transparency-increasing ink on the surface, and winding one end of the modified transparent PC belt with the transparency-increasing ink layer into the material roll again;
step 3, taking a transparent SRF belt with phase difference of >8000, and rolling the transparent SRF belt into an SRF material roll;
and 4, drawing the PC material roll in the step 2 and the SRF material roll in the step 3 by using the same machine table, respectively coating an improved solvent-free OCA optical colloid and a hardening UV adhesive on a surface of the prepared lamination between the PC material roll and the SRF material roll, and compositing by photo-curing, wherein the refractive index of the solvent-free OCA optical colloid is as follows: 1.608, refractive index of the hardened UV glue: 1.478;
and step 5, double-layer lamination, wherein the lamination mode is co-winding and co-directional back-to-back lamination.
As a preferable scheme, in the step 1, the refractive index of the modified transparent PC belt is 1.585, the light transmittance is 95%, the impact strength value is 140j/m, the Rockwell hardness is 77M scale, the flexural modulus is 2230Mpa, the tensile yield point is 61Mpa, the tensile breaking point is 140Mpa, and the phase difference is 12.
As a preferable scheme, in the step 1, the modified transparent PC belt is a PC material body modified by nano antibacterial material.
As a preferable scheme, in the step 2, the photo-curing transparency-increasing ink is composed of the following components: acrylate prepolymer, surface modified nano hollow silicon dioxide, surface modified nano silicon dioxide, diluent, photosensitizer, adhesion promoter and the balance of solvent.
As a preferable mode, in the step 2, the thickness of the antireflective ink layer is 5-8 μm.
As a preferred embodiment, in step 3, the transparent SRF tape has a thickness of 50 μm.
As a preferable scheme, the transmittance of the transparent SRF tape is 92.9%, the haze is 2.4%, and the in-plane retardation of tensile strength MD83Mpa,TD323Mpa,RO is 10500.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and particularly, the technical scheme proves that the modified transparent PC and the transparent SRF are compounded together, and the PC material is linear molecules, so that the problem of fingerprint identification sensitivity reduction caused by light interference and polarization can be perfectly avoided, and the light orientation is not generated, the phase difference is low and is lower than 20. The SRF material has an ultra-high phase difference, and the phase difference is larger than 8000, so that the SRF material not only has excellent optical performance, but also has an ultraviolet resistance function, prevents orthogonal with polarized sunglasses and rainbow patterns, is suitable for being used as a mobile phone protective film and can completely meet the fingerprint unlocking requirement. In addition, better light transmittance can be obtained by double-layer lamination of the solvent-free OCA optical colloid and the hardened UV colloid between the two film layers.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a transparent PC and transparent SRF composite flow in accordance with an embodiment of the present invention.
FIG. 2 is a graph showing the change in light transmittance of a solvent-free OCA optical clear gel and a cured UV gel before and after photo-curing, as shown in the present invention.
FIG. 3 is a schematic illustration of a composite membrane structure according to an embodiment of the invention.
The attached drawings are used for identifying and describing:
1. modified transparent PC tape 2, transparent SRF tape
3. Same machine table 10 and fingerprint unlocking mobile phone protection photo-curing film
11. Modified transparent PC film 12, transparent SRF film
13. Solvent-free OCA optical colloid 14, hardened UV glue
15. An antireflective ink layer.
Detailed Description
Referring to fig. 1 to 3, which show specific structures and methods of a preferred embodiment of the present invention, a method for manufacturing a fingerprint unlocking mobile phone protection photo-cured film includes the following steps:
step 1, taking the modified transparent PC belt 1 with the phase difference of <20, and rolling the modified transparent PC belt into a PC material roll. In this example, the modified transparent PC tape 1 has a refractive index of 1.585, a light transmittance of 95%, an impact strength value of 140j/m, a Rockwell hardness of 77M scale, a flexural modulus of 2230MPa, a tensile yield point of 61MPa, a tensile breaking point of 140MPa, and a phase difference of 12. The modified transparent PC tape 1 can be manufactured by purchasing commercially available Japanese modified PC materials. The inventor melts purchased Japanese emperor modified PC material and then modifies the PC material by nano silver antibacterial material to obtain nano silver antibacterial material modified PC material, which can effectively kill the activities of staphylococcus aureus, escherichia coli, candida albicans and other bacterial groups.
And 2, placing one end of the PC material roll into a printer to be drawn and unfolded, printing light-cured transparency-increasing ink on the surface, and winding one end of the modified transparent PC tape 1 with the anti-reflection ink layer 15 into the material roll again.
The photo-curing transparency-increasing ink belongs to inorganic and organic hybrid materials, the advantages of the inorganic and organic hybrid materials are fully utilized, the organic polymer part is favorable for film formation and toughness improvement, and the inorganic part is favorable for endowing the film with high adhesive force, hardness, aging resistance, antifouling performance and the like. The photo-curing transparency-increasing ink consists of the following components: acrylate prepolymer, surface modified nano hollow silicon dioxide, surface modified nano silicon dioxide, diluent, photosensitizer, adhesion promoter and the balance of solvent. The photo-curing transparency-increasing ink has higher adhesive force with the transparent PC belt, can be cured by ultraviolet light, does not need high temperature and has high curing speed, so compared with the traditional adhesive needing heat curing, the invention can reduce energy consumption and improve production efficiency. In addition, the hollow silica and the nano silica particles are easier to construct a porous film layer, so that the refractive index is reduced, and the light transmittance is improved.
And 3, taking the transparent SRF tape 2 with the phase difference of >8000, and rolling the transparent SRF tape into an SRF material roll. The light transmittance of the transparent SRF tape 2 was 92.9%, the haze was 2.4%, and the in-plane retardation value of the tensile strength MD83Mpa,TD323Mpa,RO was 10500.
The traditional mobile phone film adopts PET material, because of the difference of PET in-plane phase difference, the light source generates interference colors (Interference Color) with different frequency colors after penetrating through the device, and the larger the in-plane phase difference is, the lighter the generated interference color is, and the less clear the boundary line of the strip is. The invention adopts the ultra-high phase difference value (the phase difference value is 10500) to prevent the polarized sunglasses from being orthogonal, no rainbow lines are generated, when the absorption axis of the display polarizing plate is orthogonal with the absorption axis of the polarized sunglasses, the linear polarized light of the black picture display is generated, and the linear polarized light is converted into elliptical polarized light after passing through the transparent SRF, so that the polarized light cannot be orthogonal with the sunglasses, and the black picture is prevented from being generated.
Step 4, drawing the PC material roll in the step 2 and the SRF material roll in the step 3 by using the same machine table 3, respectively coating an improved solvent-free OCA optical colloid 13 and a hardening UV adhesive 14 on a surface of the prepared lamination between the PC material roll and the SRF material roll, and compositing by photo-curing, wherein the refractive index of the solvent-free OCA optical colloid 13 is as follows: 1.608, refractive index of the hardened UV glue 14: 1.478.
a better light transmittance can be obtained by the double-layer lamination of the solventless OCA optical colloid 13 and the hardened UV-glue 14.
According to the phase difference formula:
(where n is the refractive index of the medium, λ is the wavelength in the medium, and x is the wavelength) is derived from the phase difference formula, where the phase difference is related not only to the wavelength x, but also to the refractive index of the medium.
The phase difference of the two coherent light beams at the point P is as follows:
the wavelength x and the refractive index difference are the main factors affecting the phase difference. Thus, a: the thickness (wave path difference) is selected to be appropriate within the range x is allowable, and cannot be infinite (periodicity of the optical wave). B: refractive index difference was maximized, the present invention selects (1) refractive index 1.585 for PC, (2) solvent-free OCA 4 refractive index: 1.608, (3) refractive index of uv hardening layer: 1.478. thus, the transmittance spectra of light at different wavelengths before and after the OCA optical colloid is thermally cured and compounded in step 3 are shown in FIG. 2.
As can be seen from the comparison of the two curves in FIG. 2, the improved OCA optical colloid thermosetting composition is applied in the double-layer lamination, so that the protective film has excellent light transmittance, good light stability and high under-screen fingerprint unlocking sensitivity.
Step 5, double-layer lamination, as shown in fig. 1, is carried out in a same-roll and same-direction back-to-back lamination mode. And after the lamination, the following finished product of the fingerprint unlocking mobile phone protection photo-cured film 10 is obtained: as shown in fig. 3, the structure includes an upper modified transparent PC film 11 and a lower transparent SRF film 12, and a solvent-free OCA optical colloid 13 and a hardened UV glue 14 are disposed between the two films, wherein the solvent-free OCA optical colloid 13 is attached to the modified transparent PC film 11, and the hardened UV glue 14 is attached to the transparent SRF film 12. And, the upper surface of the modified transparent PC film 11 is also printed with an antireflective ink layer 15.
Wherein the thickness of the antireflective ink layer 15 is 5-8 μm. The transparent SRF tape 2 has a thickness of 50 μm. The thickness of the modified transparent PC film 11 was 30. Mu.m. The thickness of the solvent-free OCA optical colloid 13 and the hardened UV glue 14 are 5-8 μm and 10-12 μm, respectively. The total height of the fingerprint unlocking handset protection photo-cured film 10 is 100-120 μm.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.
Claims (3)
1. A manufacturing method of a fingerprint unlocking mobile phone protection photo-curing film is characterized by comprising the following steps: the method comprises the following steps:
step 1, taking a modified transparent PC belt with a phase difference of <20, and winding the modified transparent PC belt into a PC material roll;
step 2, placing one end of the PC material roll into a printer to be drawn and unfolded, printing photo-curing transparency-increasing ink on the surface, and winding one end of the modified transparent PC belt with the transparency-increasing ink layer into the material roll again;
step 3, taking a transparent SRF belt with phase difference of >8000, and rolling the transparent SRF belt into an SRF material roll;
and 4, drawing the PC material roll in the step 2 and the SRF material roll in the step 3 by using the same machine table, respectively coating an improved solvent-free OCA optical colloid and a hardening UV adhesive on a surface of the prepared lamination between the PC material roll and the SRF material roll, and compositing by photo-curing, wherein the refractive index of the solvent-free OCA optical colloid is as follows: 1.608, refractive index of the hardened UV glue: 1.478;
step 5, double-layer lamination is carried out, wherein the lamination mode is to laminate the same-roll and same-direction back-to-back surfaces;
in the step 1, the refractive index of the modified transparent PC belt is 1.585, the light transmittance is 95%, the impact strength value is 140j/M, the Rockwell hardness is 77M scale, the flexural modulus is 2230Mpa, the tensile yield point is 61Mpa, the tensile breaking point is 140Mpa, and the phase difference is 12;
in the step 1, the modified transparent PC belt is a PC material body modified by nano antibacterial materials;
in the step 2, the photo-curing transparency-increasing ink is composed of the following components: acrylate prepolymer, surface modified nano hollow silicon dioxide, surface modified nano silicon dioxide, diluent, photosensitizer, adhesion promoter and the balance of solvent;
the transparent SRF band has a light transmittance of 92.9%, a haze of 2.4%, a tensile strength of MD83MPa, TD323MPa, and an in-plane retardation of RO of 10500.
2. The method for manufacturing the fingerprint unlocking mobile phone protection photo-curing film according to claim 1, which is characterized in that: in the step 2, the thickness of the anti-reflection ink layer is 5-8 mu m.
3. The method for manufacturing the fingerprint unlocking mobile phone protection photo-curing film according to claim 1, which is characterized in that: in step 3, the transparent SRF tape has a thickness of 50 μm.
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| CN201811067877.7A CN108943979B (en) | 2018-09-13 | 2018-09-13 | Manufacturing method of fingerprint unlocking mobile phone protection photo-curing film |
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| CN201811067877.7A CN108943979B (en) | 2018-09-13 | 2018-09-13 | Manufacturing method of fingerprint unlocking mobile phone protection photo-curing film |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109762479A (en) * | 2019-02-28 | 2019-05-17 | 东莞市赛越新材料科技有限公司 | Unlocked by fingerprint protective film and forming method under Multi-layer composite screen |
| CN109912827A (en) * | 2019-04-08 | 2019-06-21 | 东莞市赛越新材料科技有限公司 | Unlocked by fingerprint 3D screen protecting film and forming method under screen with high ductibility |
| CN110272695A (en) * | 2019-06-20 | 2019-09-24 | 新恒东薄膜材料（常州）有限公司 | A kind of screen protecting film and preparation method thereof can be used for screen unlocked by fingerprint |
| CN110738939B (en) * | 2019-10-31 | 2021-10-15 | 维沃移动通信有限公司 | Electronic device |
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| CN106738624A (en) * | 2017-01-16 | 2017-05-31 | 业成科技（成都）有限公司 | The structure of low stress line workpiece and its it is integrally formed preparation method |
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| CN206892367U (en) * | 2017-04-28 | 2018-01-16 | 新恒东薄膜材料（常州）有限公司 | A kind of UV hardens SRF films |
| JP2018136503A (en) * | 2017-02-23 | 2018-08-30 | 株式会社ポラテクノ | Front panel for information display device, and information display device using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10775539B2 (en) * | 2015-02-27 | 2020-09-15 | Samsung Sdi Co., Ltd. | Polarizing plate and liquid crystal display comprising the same |
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2018
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Patent Citations (5)
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| CN106079775A (en) * | 2016-06-29 | 2016-11-09 | 东莞市纳利光学材料有限公司 | A kind of protecting film with unlocked by fingerprint function and preparation method thereof |
| CN106738624A (en) * | 2017-01-16 | 2017-05-31 | 业成科技（成都）有限公司 | The structure of low stress line workpiece and its it is integrally formed preparation method |
| JP2018136503A (en) * | 2017-02-23 | 2018-08-30 | 株式会社ポラテクノ | Front panel for information display device, and information display device using the same |
| CN206892367U (en) * | 2017-04-28 | 2018-01-16 | 新恒东薄膜材料（常州）有限公司 | A kind of UV hardens SRF films |
| CN107512039A (en) * | 2017-09-26 | 2017-12-26 | 东莞市禹辰新材料科技有限公司 | Material and its manufacture method and Mobile phone screen manufacture method are pasted without base material Mobile phone screen |
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| CN108943979A (en) | 2018-12-07 |
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Denomination of invention: Method for making UV cured film for fingerprint unlocking mobile phone protection Granted publication date: 20231017 Pledgee: Zhuhai China Resources Bank Co.,Ltd. Dongguan Branch Pledgor: DONGGUAN SAIYUE NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2024980024085 |