CN113703074A - Optical film and forming method thereof - Google Patents
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- CN113703074A CN113703074A CN202110983000.8A CN202110983000A CN113703074A CN 113703074 A CN113703074 A CN 113703074A CN 202110983000 A CN202110983000 A CN 202110983000A CN 113703074 A CN113703074 A CN 113703074A
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- 239000012788 optical film Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 298
- 239000010408 film Substances 0.000 claims abstract description 178
- 239000002861 polymer material Substances 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 58
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000003666 anti-fingerprint Effects 0.000 claims abstract description 26
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 16
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims description 29
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 15
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 15
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 14
- 229910001610 cryolite Inorganic materials 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims description 11
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims description 11
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 claims description 11
- 229910001632 barium fluoride Inorganic materials 0.000 claims description 11
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- BYMUNNMMXKDFEZ-UHFFFAOYSA-K trifluorolanthanum Chemical compound F[La](F)F BYMUNNMMXKDFEZ-UHFFFAOYSA-K 0.000 claims description 10
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- QCCDYNYSHILRDG-UHFFFAOYSA-K cerium(3+);trifluoride Chemical compound [F-].[F-].[F-].[Ce+3] QCCDYNYSHILRDG-UHFFFAOYSA-K 0.000 claims description 9
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 9
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 9
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 8
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- PPPLOTGLKDTASM-UHFFFAOYSA-A pentasodium;pentafluoroaluminum(2-);tetrafluoroalumanuide Chemical compound [F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3] PPPLOTGLKDTASM-UHFFFAOYSA-A 0.000 claims description 2
- 238000007738 vacuum evaporation Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 2
- 230000003667 anti-reflective effect Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 8
- 239000002952 polymeric resin Substances 0.000 abstract description 4
- 229920003002 synthetic resin Polymers 0.000 abstract description 4
- 150000003384 small molecules Chemical class 0.000 description 16
- 239000011261 inert gas Substances 0.000 description 8
- 239000007888 film coating Substances 0.000 description 6
- 238000009501 film coating Methods 0.000 description 6
- 238000001771 vacuum deposition Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- -1 awl Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Laminated Bodies (AREA)
Abstract
The invention is suitable for the technical field of films, and provides an optical film which comprises an anti-reflection first film layer, an anti-reflection second film layer and an anti-fingerprint layer which are sequentially arranged, wherein the anti-reflection first film layer comprises a base material and a plurality of polymer material layers which are sequentially arranged, the anti-reflection second film layer is arranged on the surface of the polymer material layer, and the polymer material forming the polymer material layer contains silicon dioxide and aluminum oxide, the invention also discloses a forming method of the optical film, which is provided with the anti-reflection first film layer, the anti-reflection second film layer and the anti-fingerprint layer, the surface stress of the material layer is reduced and is not easy to shrink by adding the silicon dioxide and the aluminum oxide, the adhesive force of the upper layer material is higher, the surface hydroxyl is more after the film is formed, the adhesive force is better, the anti-reflection first film layer is preheated, the micromolecules in the wet coating can be extruded after being heated and expanded, so that the surface layers are all attached to the polymer resin, the adhesion between the anti-reflection second film layer and the anti-reflection first film layer is further improved.
Description
Technical Field
The invention belongs to the technical field of films, and particularly relates to an optical film and a forming method thereof.
Background
Optical films are a class of optical media materials that are composed of thin layered media that propagate a light beam through an interface. Modern optical films have been widely used in the fields of optics and optoelectronics to manufacture various optical instruments, and the optical films are characterized in that: the surface is smooth, and the interface between the film layers is in geometric segmentation; the refractive index of the film layer may jump at the interface, but is continuous in the film layer, and the optical film is classified into a reflective film, an antireflection film, a filter film, an optical protective film, a polarizing film, a spectroscopic film, and a phase film according to the application.
The film layers of the existing optical film have low adhesion force, so that the mechanical property of the optical film is reduced.
Disclosure of Invention
The invention provides an optical film and a forming method thereof, aiming at solving the problems of the existing wet coating process and the magnetron sputtering process respectively.
The present invention has been achieved in this way, and an optical film comprises an antireflection first film layer, an antireflection second film layer, and an anti-fingerprint layer, which are provided in this order, the antireflection first film layer comprising a base material and a plurality of polymer material layers, the antireflection second film layer being provided on the surface of the polymer material layer, the anti-fingerprint layer being provided on the surface of the antireflection second film layer, the polymer material constituting the polymer material layer containing silica and alumina.
Preferably, the material of the base material is one or more of pet, pc, pma, tac, pen and cpi.
Preferably, one of the two adjacent polymer material layers has a high refractive index, the other is a low refractive index, and the anti-reflection second film layer has a low refractive index.
Preferably, the material of the anti-reflection second film layer comprises one or more of silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, chiolite, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide.
Preferably, the surface of the substrate is provided with a hardening film layer.
An optical film forming method is used for manufacturing the optical film and comprises the following steps:
1) a plurality of polymer material layers are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer is processed, the other polymer material layer is processed after drying, and the anti-reflection first film layer is obtained after the last polymer material layer is dried;
2) preheating the obtained anti-reflection first film layer, and then processing an anti-reflection second film layer;
3) and processing an anti-fingerprint layer on the surface of the anti-reflection second film layer.
Preferably, in step 2), the preheating temperature is 40-150 ℃.
Preferably, in the step 2), the preheating time is 10s-60 min.
Preferably, in the step 2), the processing technology of the anti-reflection second film layer is a wet rolling coating technology or a magnetron sputtering technology.
Preferably, in the step 3), the fingerprint-proof layer is processed in a roll-to-roll vacuum evaporation mode.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
1. by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer is reduced and is not easy to shrink, the adhesive force of the upper layer material is higher, on the other hand, the surface hydroxyl groups are more after the film is formed, the adhesive force is better, the adhesive force of the anti-reflection second film layer and the anti-reflection first film layer is improved, and the adhesion is improved;
2. by preheating the anti-reflection first film layer, small molecules in the wet coating can be extruded after being heated and expanded, so that the surface layer is attached to the high molecular resin instead of the inert gas of the small molecules and then enters a film coating machine, and the bonding force of the anti-reflection second film layer and the anti-reflection first film layer is further improved.
Drawings
FIG. 1 is a schematic structural diagram of an optical film of example 1 provided by the present invention;
FIG. 2 is a schematic structural view of optical films of examples 2-6 provided by the present disclosure;
FIG. 3 is a schematic structural view of an optical film of example 7 provided by the present invention;
FIG. 4 is another schematic structural diagram of an optical film of example 7 according to the present disclosure.
Notations for reference numerals: 1-substrate, 2-high polymer material layer, 3-anti-reflection second film layer, 4-anti-fingerprint layer and 5-hardening film layer.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Example 1
An optical film is provided in an embodiment of the present invention, referring to fig. 1, including an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, the polymer material layers 2 are preferably two layers, the anti-reflection second film layer 3 is preferably disposed on the surface of the polymer material layers 2, and the anti-fingerprint layer 4 is disposed on the surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more materials selected from pet, pc, pmma, tac, pen and cpi, preferably pet, and has good mechanical properties, good folding resistance, and excellent gas, water, oil and odor barrier properties, and the anti-reflection second film layer 3 is made of materials including silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, awl, and diamond, One or more of aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, preferably, the material of the anti-reflection second film layer 3 includes silicon oxide, silicon carbide, cerium fluoride, lanthanum fluoride and barium fluoride, one of the two adjacent polymer material layers 2 has a high refractive index, the other is a low refractive index, the anti-reflection second film layer 3 has a low refractive index, the low refractive index is 1.3-1.6, in this embodiment, preferably 1.3, the high refractive index is 2.4-2.8, in this embodiment, preferably 2.4, each thickness of the anti-reflection first film layer is 50-150nm, which can be designed according to the refractive index without limitation, further, the polymer material constituting the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the material layer surface stress becomes small and is not easy to shrink, the adhesion of the upper layer material is higher, on the other hand, the surface has more hydroxyl groups after film formation, the adhesion force is better, the adhesion force between the anti-reflection second film layer 3 and the anti-reflection first film layer can be further improved, and the adhesion is improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) processing a high molecular material layer 2 on the surface of one side of the base material by a wet rolling coating process, processing the high molecular material layer 2, drying, processing another high molecular material layer 2, and drying to obtain an anti-reflection first film layer;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 40 ℃, the preheating time is 10s, the anti-reflection first film layer can be extruded out after small molecules in wet coating paint are heated and expanded, and the surface layer is attached to high molecular resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved, then the anti-reflection second film layer 3 is processed in a film coating machine by adopting a magnetron sputtering process, in particular, the magnetron sputtering is a mature and efficient film deposition technology and is widely applied to scientific research and industrial production, for example, a roll-to-roll magnetron sputtering system in the center of the prior art can be used for depositing optical films, and the system provides a plasma processing module for solving the problem of low adhesion force of partial substrates to deposition materials and further improving the film performance, can be used for surface treatment before film deposition, and is not described again;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 2
An optical film is provided in an embodiment of the present invention, referring to fig. 2, an optical film is provided in an embodiment of the present invention, referring to fig. 1, including an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, preferably, the polymer material layers 2 are four layers, the anti-reflection second film layer 3 is disposed on a surface of the polymer material layer 2, and the anti-fingerprint layer 4 is disposed on a surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more of pet, pc, pma, tac, pen and cpi, and preferably pet, and has good mechanical properties, good folding resistance, and good gas, water, oil and odor barrier properties, and the material of the anti-reflection second film layer 3 includes silicon oxide, magnesium fluoride, aluminum oxide, or a material having a material with a material, and a material, which is preferably, and a material, and is disposed in this order, the polymer material is disposed on a surface of the polymer material of the substrate 1, and the anti-reflection second film layer 3, and the surface of the anti-reflection layer 3, and the surface of the anti-reflection layer is preferably, and the surface of the anti-reflection layer is disposed on the surface of the anti-reflection layer, and the surface of the anti-reflection layer, and the surface of the anti-reflection layer, and the surface of the surface, and the surface of the anti-reflection layer, and the surface of the anti-reflection layer, and the surface of the substrate, and the anti-reflection layer, and the substrate, and the surface of the substrate, and the surface of the substrate, and the surface of the substrate, and the substrate of the, One or more of cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, preferably, the material of the anti-reflection second film layer 3 comprises silicon oxide, silicon carbide, barium fluoride, aluminum fluoride and cryolite, one of the two adjacent polymer material layers 2 has a high refractive index, the other has a low refractive index, the anti-reflection second film layer 3 has a low refractive index, the low refractive index is 1.3-1.6, in this embodiment, preferably 1.3, the high refractive index is 2.4-2.8, in this embodiment, preferably 2.4, each thickness of each layer of the anti-reflection first film layer is 50-150nm, and the thickness can be designed according to the refractive index, and is not limited, further, the polymer material forming the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer is reduced and is not easy to shrink, the adhesive force of the upper layer material is higher, on the other hand, the surface hydroxyl groups are more after the film is formed, the adhesive force is better, the adhesive force of the anti-reflection second film layer 3 and the anti-reflection first film layer can be further improved, and the adhesion is improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) laminating and processing four polymer material layers 2 on one side surface of the substrate by a wet rolling coating process, processing one polymer material layer 2, processing the other polymer material layer 2 after drying, and drying the last polymer material layer 2 to obtain an anti-reflection first film layer;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 40 ℃, the preheating time is 10s, small molecules in the wet coating can be extruded out after being heated and expanded, and the surface layer is attached to high molecular resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved, and then the anti-reflection second film layer 3 is processed by adopting a magnetron sputtering process in a film coating machine;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 3
An optical film is provided in an embodiment of the present invention, referring to fig. 2, including an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, the polymer material layers 2 are preferably four layers, the anti-reflection second film layer 3 is disposed on a surface of the polymer material layers 2, and the anti-fingerprint layer 4 is disposed on a surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more materials selected from pet, pc, pmma, tac, pen and cpi, preferably pc, the anti-reflection second film layer 3 is made of one or more materials selected from silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, Cone, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, it is preferable that the material of the anti-reflection second film layer 3 includes silicon oxide, silicon carbide, cryolite, aluminum dioxide and silicon carbide, one of the two adjacent polymer material layers 2 is high refractive index, the other is low refractive index, the anti-reflection second film layer 3 is low refractive index, the low refractive index is 1.3-1.6, the embodiment is preferably 1.4, the high refractive index is 2.4-2.8, the embodiment is preferably 2.5, the thickness of each layer of the anti-reflection first film layer is 50-150nm, which can be designed according to the refractive index, without limitation, further, the polymer material forming the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer becomes small and is not easy to shrink, the adhesion of the upper layer material is higher, on the other hand, the surface hydroxyl group is more after film forming, and the adhesion force is better, further, the adhesion between the antireflection second film layer 3 and the antireflection first film layer can be improved, and the adhesion can be improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) a plurality of polymer material layers 2 are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer 2 is processed, the other polymer material layer 2 is processed after drying, and the antireflection first film layer is obtained after the last polymer material layer 2 is dried;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 115 ℃, the preheating time is 15min, small molecules in the wet coating can be extruded out after being heated and expanded, and the surface layer is attached to high polymer resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 4
The embodiment of the present invention provides an optical film, please refer to fig. 2, which includes an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, the polymer material layers 2 are preferably four layers, the anti-reflection second film layer 3 is disposed on the surface of the polymer material layers 2, and the anti-fingerprint layer 4 is disposed on the surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more materials selected from pet, pc, pmma, tac, pen and cpi, preferably pmma, and the anti-reflection second film layer 3 is made of one or more materials selected from silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, conoid, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, it is preferable that the material of the anti-reflection second film layer 3 includes silicon oxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, one of the two adjacent polymer material layers 2 is high refractive index, the other is low refractive index, the anti-reflection second film layer 3 is low refractive index, the low refractive index is 1.3-1.6, the embodiment is preferably 1.5, the high refractive index is 2.4-2.8, the embodiment is preferably 2.6, the thickness of each layer of the anti-reflection first film layer is 50-150nm, which can be designed according to the refractive index, without limitation, further, the polymer material constituting the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer becomes small and is not easy to shrink, the adhesion of the upper layer material is higher, on the other hand, the surface hydroxyl group is more after film forming, and the adhesion force is better, further, the adhesion between the antireflection second film layer 3 and the antireflection first film layer can be improved, and the adhesion can be improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) a plurality of polymer material layers 2 are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer 2 is processed, the other polymer material layer 2 is processed after drying, and the antireflection first film layer is obtained after the last polymer material layer 2 is dried;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 130 ℃, the preheating time is 30min, small molecules in the wet coating can be extruded out after being heated and expanded, and the surface layer is attached to high molecular resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved, and then the anti-reflection second film layer 3 is processed by adopting a magnetron sputtering process in a film coating machine;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 5
An optical film is provided in an embodiment of the present invention, referring to fig. 2, including an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, the polymer material layers 2 are preferably four layers, the anti-reflection second film layer 3 is disposed on a surface of the polymer material layers 2, and the anti-fingerprint layer 4 is disposed on a surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more materials selected from pet, pc, pmma, tac, pen and cpi, preferably tac, the anti-reflection second film layer 3 is made of one or more materials selected from silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, it is preferable that the material of the anti-reflection second film layer 3 includes silicon oxide, silicon carbide, aluminum fluoride, cryolite, conical cryolite and aluminum dioxide, one of the two adjacent polymer material layers 2 is high refractive index, the other is low refractive index, the anti-reflection second film layer 3 is low refractive index, the low refractive index is 1.3-1.6, the embodiment is preferably 1.5, the high refractive index is 2.4-2.8, the embodiment is preferably 2.7, the thickness of each layer of the anti-reflection first film layer is 50-150nm, which can be designed according to the refractive index without limitation, further, the polymer material forming the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer becomes small and is not easy to shrink, the adhesion of the upper layer material is higher, on the other hand, the surface hydroxyl group after film forming is more, the adhesion force is better, the adhesion force between the anti-reflection second film layer 3 and the anti-reflection first film layer can be further improved, and the adhesion is improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) a plurality of polymer material layers 2 are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer 2 is processed, the other polymer material layer 2 is processed after drying, and the antireflection first film layer is obtained after the last polymer material layer 2 is dried;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 135 ℃, the preheating time is 45min, small molecules in the wet coating paint can be extruded out after being heated and expanded, and the surface layer is attached to high polymer resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 6
An optical film is provided in an embodiment of the present invention, referring to fig. 2, including an anti-reflection first film layer, an anti-reflection second film layer 3 and an anti-fingerprint layer 4, which are sequentially disposed, where the anti-reflection first film layer includes a substrate 1 and a plurality of polymer material layers 2, in this embodiment, the polymer material layers 2 are preferably four layers, the anti-reflection second film layer 3 is disposed on a surface of the polymer material layers 2, and the anti-fingerprint layer 4 is disposed on a surface of the anti-reflection second film layer 3, in this embodiment, the substrate 1 is made of one or more materials selected from pet, pc, pmma, tac, pen and cpi, preferably pen, and the anti-reflection second film layer 3 is made of one or more materials selected from silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, conoid, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride and titanium oxide, in this embodiment, it is preferable that the material of the anti-reflection second film layer 3 includes silicon oxide, silicon carbide, lanthanum fluoride, barium fluoride, aluminum fluoride and cryolite, one of the two adjacent polymer material layers 2 is high refractive index, the other is low refractive index, the anti-reflection second film layer 3 is low refractive index, the low refractive index is 1.3-1.6, the embodiment is preferably 1.6, the high refractive index is 2.4-2.8, the embodiment is preferably 2.8, the thickness of each layer of the anti-reflection first film layer is 50-150nm, which can be designed according to the refractive index, without limitation, further, the polymer material forming the polymer material layer 2 contains silicon dioxide and aluminum oxide, by adding silicon dioxide and aluminum oxide, on one hand, the surface stress of the material layer becomes small and is not easy to shrink, the adhesion of the upper layer material is higher, on the other hand, the surface hydroxyl group is more after film forming, and the adhesion force is better, further, the adhesion between the antireflection second film layer 3 and the antireflection first film layer can be improved, and the adhesion can be improved.
An optical film forming method is used for manufacturing the optical film in the embodiment, and comprises the following steps:
1) a plurality of polymer material layers 2 are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer 2 is processed, the other polymer material layer 2 is processed after drying, and the antireflection first film layer is obtained after the last polymer material layer 2 is dried;
2) preheating the obtained anti-reflection first film layer, wherein the preheating temperature is 150 ℃, the preheating time is 60min, small molecules in the wet coating can be extruded out after being heated and expanded, and the surface layer is attached to high molecular resin instead of inert gas of the small molecules, so that the adhesion force of the anti-reflection second film layer 3 and the anti-reflection first film layer is improved, and then the anti-reflection second film layer 3 is processed by adopting a magnetron sputtering process in a film coating machine;
3) the anti-fingerprint layer 4 is processed on the surface of the anti-reflection second film layer 3, and preferably adopts a roll-to-roll vacuum evaporation method.
Example 7
On the basis of any of the foregoing embodiments 1 to 6, please refer to fig. 3 to 4, further, a hardened film layer 5 is disposed on the surface of the substrate 1, and may cover the entire substrate 1, or may be disposed only between the substrate 1 and the polymer material layer 2, in this embodiment, the hardened film layer 5 is preferably coated on the surface of the substrate 1 by a wet roll coating process to play a scratch-proof role, and further, the hardened film layer 5 may be selected from an anti-glare material.
In summary, the present invention provides the anti-reflection first film layer, the anti-reflection second film layer 3 and the anti-fingerprint layer 4, the adhesion between the anti-reflection second film layer 3 and the anti-reflection first film layer is improved by adding silica and alumina, and the adhesion is improved, further, the anti-reflection first film layer is preheated, so that the small molecules in the wet coating can be extruded after being heated and expanded, and thus the surface layers are all attached to the polymer resin, but not attached to the inert gas of the small molecules, and then enter the film coating machine, thus further improving the adhesion between the anti-reflection second film layer 3 and the anti-reflection first film layer.
It should be noted that, for simplicity of description, the above-mentioned embodiments are described as a series of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or communication connection may be an indirect coupling or communication connection between devices or units through some interfaces, and may be in a telecommunication or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above examples are only used to illustrate the technical solutions of the present invention, and do not limit the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from these embodiments without making any inventive step, fall within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present invention according to the situation without conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, and these technical solutions also fall within the protection scope of the present invention.
Claims (10)
1. The optical film is characterized by comprising a first anti-reflection film layer, a second anti-reflection film layer and a fingerprint prevention layer which are sequentially arranged, wherein the first anti-reflection film layer comprises a base material and multiple polymer material layers which are sequentially arranged, the second anti-reflection film layer is arranged on the surface of the polymer material layer, the fingerprint prevention layer is arranged on the surface of the second anti-reflection film layer, and the polymer material forming the polymer material layer contains silicon dioxide and aluminum oxide.
2. An optical film as claimed in claim 1, wherein the substrate is made of one or more of pet, pc, pmma, tac, pen and cpi.
3. An optical film as defined in claim 1, wherein one of the two adjacent polymer material layers has a high refractive index, the other has a low refractive index, and the anti-reflection second film layer has a low refractive index.
4. An optical film as recited in claim 1, wherein the material of the anti-reflective second film layer comprises one or more of silicon oxide, magnesium fluoride, aluminum oxide, cerium fluoride, lanthanum fluoride, barium fluoride, aluminum fluoride, cryolite, chiolite, aluminum dioxide, silicon carbide, niobium oxide, silicon nitride, and titanium oxide.
5. An optical film as recited in claim 1, wherein the surface of the substrate is provided with a hardened film layer.
6. An optical film forming method for manufacturing the optical film according to any one of claims 1 to 5, comprising the steps of:
1) a plurality of polymer material layers are superposed on the surface layer of one side of the base material by a wet rolling coating process, one polymer material layer is processed, the other polymer material layer is processed after drying, and the anti-reflection first film layer is obtained after the last polymer material layer is dried;
2) preheating the obtained anti-reflection first film layer, and then processing an anti-reflection second film layer;
3) and processing an anti-fingerprint layer on the surface of the anti-reflection second film layer.
7. The method for forming an optical film as claimed in claim 6, wherein the preheating temperature in the step 2) is 40 to 150 ℃.
8. The method for molding an optical film as claimed in claim 7, wherein the preheating time in step 2) is 10s to 60 min.
9. The method for forming an optical film as claimed in claim 6, wherein in the step 2), the process of the anti-reflection second film layer is a wet roll coating process or a magnetron sputtering process.
10. The method of claim 6, wherein in step 3), the anti-fingerprint layer is processed by roll-to-roll vacuum evaporation.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185905A (en) * | 2011-12-28 | 2013-07-03 | 株式会社腾龙 | Anti-reflection film and optical element |
| CN110346846A (en) * | 2019-07-30 | 2019-10-18 | 威海世高光电子有限公司 | Anti-reflection waterproof membrane and preparation method thereof, optical lens |
| CN112005131A (en) * | 2018-04-27 | 2020-11-27 | 柯尼卡美能达株式会社 | Optical film, optical member, and method for producing optical film |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185905A (en) * | 2011-12-28 | 2013-07-03 | 株式会社腾龙 | Anti-reflection film and optical element |
| CN112005131A (en) * | 2018-04-27 | 2020-11-27 | 柯尼卡美能达株式会社 | Optical film, optical member, and method for producing optical film |
| CN110346846A (en) * | 2019-07-30 | 2019-10-18 | 威海世高光电子有限公司 | Anti-reflection waterproof membrane and preparation method thereof, optical lens |
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Application publication date: 20211126 |