WO2005093468A1 - 防眩フィルム - Google Patents
防眩フィルム Download PDFInfo
- Publication number
- WO2005093468A1 WO2005093468A1 PCT/JP2005/004613 JP2005004613W WO2005093468A1 WO 2005093468 A1 WO2005093468 A1 WO 2005093468A1 JP 2005004613 W JP2005004613 W JP 2005004613W WO 2005093468 A1 WO2005093468 A1 WO 2005093468A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fine particles
- resin fine
- resin
- bowl
- refractive index
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims abstract description 191
- 239000011347 resin Substances 0.000 claims abstract description 191
- 239000002245 particle Substances 0.000 claims abstract description 75
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000010419 fine particle Substances 0.000 claims description 111
- 238000009792 diffusion process Methods 0.000 claims description 29
- 230000004313 glare Effects 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 206010052128 Glare Diseases 0.000 description 54
- 239000010410 layer Substances 0.000 description 28
- 238000000576 coating method Methods 0.000 description 24
- 239000011248 coating agent Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- 229920002284 Cellulose triacetate Polymers 0.000 description 10
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 10
- -1 shape Substances 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 7
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 7
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 229920002050 silicone resin Polymers 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229920000180 alkyd Polymers 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- UNMJLQGKEDTEKJ-UHFFFAOYSA-N (3-ethyloxetan-3-yl)methanol Chemical compound CCC1(CO)COC1 UNMJLQGKEDTEKJ-UHFFFAOYSA-N 0.000 description 1
- HDPLHDGYGLENEI-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COC(C)COCC1CO1 HDPLHDGYGLENEI-UHFFFAOYSA-N 0.000 description 1
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 1
- KUAUJXBLDYVELT-UHFFFAOYSA-N 2-[[2,2-dimethyl-3-(oxiran-2-ylmethoxy)propoxy]methyl]oxirane Chemical compound C1OC1COCC(C)(C)COCC1CO1 KUAUJXBLDYVELT-UHFFFAOYSA-N 0.000 description 1
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 1
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical group C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002921 oxetanes Chemical class 0.000 description 1
- 125000003566 oxetanyl group Chemical group 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- QCTJRYGLPAFRMS-UHFFFAOYSA-N prop-2-enoic acid;1,3,5-triazine-2,4,6-triamine Chemical compound OC(=O)C=C.NC1=NC(N)=NC(N)=N1 QCTJRYGLPAFRMS-UHFFFAOYSA-N 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 229920005792 styrene-acrylic resin Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B29D11/00788—Producing optical films
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
Definitions
- the present invention relates to an anti-glare film applicable to various lighting fixtures and surface members of various displays, and particularly to an anti-glare property, an image blur prevention, a glare prevention and a white scattering due to surface scattering in a liquid crystal display and the like.
- the present invention relates to an antiglare film having taste prevention.
- Image display devices represented by liquid crystal displays, plasma displays, CRTs, ELs, and the like (hereinafter, these are referred to as "displays") are used in various fields including televisions and computers, and are undergoing remarkable development. Has achieved.
- liquid crystal displays which are thin, lightweight, and versatile, have become very popular as display media for thin-screen TVs, mobile phones, personal computers, digital cameras, PDAs, and other devices.
- a rough surface is formed on the display surface by sand blasting or the like, or a transparent resin is coated on the display surface, and then a shaping treatment is performed with a shaping film having irregularities.
- the coating is performed by coating a coating material in which inorganic or organic transparent fine particles are dispersed in a resin binder to provide an antiglare layer on the display surface.
- the last-mentioned anti-glare treatment using a resin binder and organic transparent fine particles scatters external light due to the refractive index difference between the uneven resin binder formed by the fine particles and the fine particles.
- the viewing angle is restricted due to its mechanism, and when used in a liquid crystal display, the display angle is expanded by scattering and outputting image information as much as possible over a wide angle range. The effect can be expected, so now This is the most general method, and is disclosed, for example, in Patent Documents 13 and 13.
- Patent Document 1 Patent No. 3314965
- Patent Document 2 JP-A-5-162261
- Patent Document 3 Japanese Patent Application Laid-Open No. 7-181306
- the present invention has been made to solve the above-mentioned problems in the related art, and has as its object the occurrence of blurring of an image and the poor viewing angle characteristics of a liquid crystal display.
- An object of the present invention is to provide an anti-glare film suitable for performing an anti-glare treatment while suppressing daggers.
- the present inventor has conducted intensive studies to solve the above-mentioned problems, and as a result, using a transparent resin having a specific refractive index and a bowl-shaped resin fine particle together with a spherical resin fine particle. As a result, the inventors have found that the above-mentioned object is achieved, and have completed the present invention.
- the antiglare film of the present invention has a light diffusion layer in which fine resin particles are dispersed in a transparent resin phase, wherein the fine resin particles are at least spherical resin fine particles and And the refractive index n of the transparent resin phase and the refractive index n of the cup-shaped resin particles satisfy the following formula (1). Characterized by z
- the refractive index n of the spherical resin fine particles and the bowl-shaped y It is preferable that the refractive index n of the fine oil particles satisfies the relationship of the following formula (2).
- Average particle diameter of y-shaped fine resin particles D force Each is preferably 0.3 ⁇ m—7.0 ⁇ m
- the average particle diameter D of the spherical resin fine particles and the average particle diameter D of the bowl-shaped resin fine particles are
- the light diffusion layer is preferably provided on at least one surface of the transparent substrate.
- the light diffusion layer has an uneven surface, and that the convex portion of the uneven surface is formed by a convex portion of a spherical resin fine particle and a bowl-shaped resin fine particle.
- the thickness of the thinnest portion of the light diffusion layer is preferably larger than the height of the bowl-shaped resin fine particles.
- the average particle diameter of the spherical resin fine particles is 110 to 300% of the height of the bowl-shaped resin fine particles.
- the average roughness Ra of the uneven surface is preferably 0.1 to 1.0 m.
- the anti-glare film of the present invention uses spherical resin fine particles and bowl-shaped resin fine particles, it has an effect of suppressing image blur while widening the viewing angle of the display.
- the peculiar shape of the bowl-shaped resin particles has the effect of limiting the light scattering to a specific direction as compared with the spherical resin particles, and the presence of the bowl-shaped resin particles increases the viewing angle of the display. It has the effect of suppressing blurring of the image while expanding.
- glare in a film subjected to an anti-glare treatment is caused by unevenness on the surface of an anti-glare film formed by fine particles, or a difference between a transparent resin phase having a different refractive index and fine particles.
- the interface plays the role of a lens, which is caused by local brightness on the surface of the antiglare film.
- the light diffusion layer has a transparent resin phase.
- Spherical resin particles and transparent resin phase Two types of interfaces are formed, and the latter has the refractive index relationship shown in the above formula (1), and the role of each interface as a lens Counteract, thus eliminating glare Effect.
- there is an effect that glare caused by unevenness on the surface of the antiglare film is eliminated.
- the convexity of the uneven surface has only spherical resin fine particles, or a unique shape formed by true spherical resin fine particles and bowl-shaped resin fine particles. Since it has a rough surface unevenness, it exerts the effect of imparting appropriate anti-glare properties while suppressing the generation of whiteness.
- the anti-glare film of the present invention can be applied to various lighting fixtures and surface members of various displays, and is particularly applicable to image display devices such as liquid crystal displays, plasma displays, CRTs, and ELs. Can be used appropriately.
- FIG. 1 is a schematic cross-sectional view of an example of the antiglare film of the present invention.
- FIG. 2 is a schematic cross-sectional view of another example of the antiglare film of the present invention.
- FIG. 3 is a schematic cross-sectional view of another example of the antiglare film of the present invention.
- FIG. 4 is a top view of the bowl-shaped resin fine particles used in the present invention.
- FIG. 5 is a side sectional view of a bowl-shaped resin fine particle used in the present invention.
- FIG. 1 is a schematic sectional view of an example of the antiglare film of the present invention.
- the spherical resin fine particles 2 and the bowl-shaped resin fine particles 3 are composed of a light diffusion layer 4 dispersed in a transparent resin phase 1, and the spherical resin fine particles 2 form projections on the uneven surface.
- FIG. 2 is a schematic cross-sectional view of another example of the antiglare film of the present invention. In this figure, the light diffusion layer 4 shown in FIG. To form an antiglare film.
- FIG. 3 is a schematic cross-sectional view of another example of the antiglare film of the present invention.
- the bowl-shaped resin particles 3 are dispersed in the transparent resin phase 1 in an irregular direction, and the spherical resin particles 2 and the bowl-shaped resin particles 3 Thus, a convex portion on the concave-convex surface is formed.
- resin fine particles used in the anti-glare film of the present invention various resin fine particles such as the material, shape, and particle size can be used.
- the material of such resin fine particles include acrylic resin, silicone resin, styrene resin, melamine resin, styrene-acryl copolymer resin, and the like. It can be freely selected depending on the ratio, the affinity for the binder, and the like.
- organic compounds such as oils and fats, silane coupling agents, and metal oxides are used.
- the resin fine particles are spherical resin fine particles, and at least another part is bowl-shaped resin fine particles having a concave central portion. is there.
- the true spherical resin fine particles mean those having a true sphere or a spherical shape close to a true sphere, and are produced by, for example, a suspension polymerization method of a monomer or a spray drying method of a polymer solution. Things can be used.
- the bowl-shaped resin fine particles are not particularly limited as long as they are resin fine particles having a concave portion like a bowl, but typically have a shape shown in Figs. 4 and 5. It has.
- FIG. 4 is a top view of the bowl-shaped resin fine particles
- FIG. 5 is a side sectional view.
- the average particle diameter D, the diameter a, the thickness b, and the height h shown in the figure are shown. It is preferable that the shape of the relationship satisfies the relationship of the following formula.
- the average particle diameter D of the spherical resin fine particles and the average particle diameter D of the bowl-shaped resin fine particles are both in the range of 0.7 to 7.0 O / zm.
- the average particle size is smaller than 0, good light diffusivity cannot be obtained because the average particle size is smaller than the wavelength of visible light.
- the average particle size is larger than 7.0 m, fine resin particles It is not preferable because a granular feeling appears.
- the average particle diameter Dy of the spherical resin fine particles is preferably 110 to 300% of the height h of the bowl-shaped resin fine particles.
- the value of the above-mentioned particle shape in the present invention is obtained by shape observation using an electron microscope.
- the total number of the spherical resin fine particles and the bowl-shaped resin fine particles contained in the antiglare film of the present invention also varies depending on the particle diameter of the fine particles used. but are not limited to, preferably 60 000 ZMM 2 or less, more preferably 40000 ZMM 2 or less, particularly preferably a 20000 or ZMM 2 below, is set to 5000 Zm m 2 or more ranges.
- the mixing ratio of the spherical resin fine particles and the bowl-shaped resin fine particles contained in the anti-glare film of the present invention is not particularly limited.
- Number Z The number of bowl-shaped resin fine particles is preferably in the range of 50Z50-1Z99, and particularly preferably in the range of 40 / 60-2 / 98.
- the transparent resin constituting the transparent resin phase in which the resin fine particles are dispersed includes thermoplastic resin, thermosetting resin, and radiation-curable resin. Etc. can be used as appropriate.
- thermoplastic resin examples include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polypropylene (PP), and polybutyl.
- Various resins such as alcohol (PVA), polychlorinated vinyl (PVC), cycloolefin copolymer (COC), norbornene-containing resin, and polyethersulfone can be used.
- the radiation-curable resin has a polymerizable unsaturated bond or a functional group similar thereto, such as an atalyloyl group, a methacryloyl group, an atariloyloxy group, a methacryloyloxy group, an epoxy group, a vinyl ether group, and an oxetane group.
- a functional group similar thereto such as an atalyloyl group, a methacryloyl group, an atariloyloxy group, a methacryloyloxy group, an epoxy group, a vinyl ether group, and an oxetane group.
- Examples include those using a composition in which monomers, oligomers, and prepolymers are appropriately mixed.
- the monomer include methyl acrylate, methinolemethacrylate, methoxypolyethylene methacrylate, and cyclohexynolemethacrylate.
- oligomers and prepolymers include atalylate toys such as polyester acrylate, polyurethane acrylate, epoxy acrylate, polyether acrylate, alkyd acrylate, melamine acrylate, and silicone acrylate, unsaturated polyester, and the like.
- Epoxy compounds such as tetramethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, bisphenol A diglycidyl ether, various alicyclic epoxies, 3-ethyl-3-hydroxymethyloxetane, Oxetane compounds such as 1,4-bis ⁇ [(3-ethyl-3-ethoxy) methoxy] methyl ⁇ benzene and di [1-ethyl (3-oxeta-l)] methyl ether can be used. These can be used alone or as a mixture of two or more.
- thermosetting resin examples include phenol resin, furan resin, xylene'formaldehyde resin, ketone'formaldehyde resin, urea resin, melamine resin, arrin resin, alkyd resin, and alkyd resin.
- Saturated polyester resin, epoxy resin and the like can be mentioned. These may be used alone or in combination.
- the transparent resin used in the antiglare film of the present invention has a light transmittance (JIS K-7105) of 80% or more, more preferably 90% or more, which is preferred as the transparency is higher. It is. If the light transmittance is less than 80%, there is no problem for the present invention, but it is not preferable because it becomes dark as a display film.
- JIS K-7105 JIS K-7105
- nm-sized fine particles that do not affect light diffusion for the purpose of imparting various properties.
- examples include silica, titanium dioxide, silicate sol, titanate sol, ITO, ⁇ , and the like.
- the light diffusion layer of the antiglare film of the present invention is obtained by dissolving and dispersing the above-mentioned transparent resin and spherical resin fine particles and bowl-shaped resin fine particles in a suitable solvent, It can be formed by coating, drying and curing.
- the light-diffusing layer may peel off the substrate force, but may be provided in the form of a coating layer on a transparent substrate.
- the thickness of the light diffusion layer is preferably in the range of 0.5 to 200 m.
- the light diffusion layer is a transparent substrate In the case of a coating layer coated on top, the light diffusion layer is supported by a transparent substrate
- the thickness is preferably in the range of 0.5-50 m, more preferably in the range of 110 m.
- the transparent substrate when the light diffusion layer is a coating layer coated on a transparent substrate, a known transparent film, glass, or the like can be used as the transparent substrate.
- a known transparent film, glass, or the like can be used as the transparent substrate.
- Specific examples include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), triacetyl cellulose (TAC), polymethyl methacrylate (PMMA), polycarbonate (PC), polyimide (PI), polyethylene (PE), Various resin films such as polypropylene (PP), polyvinyl alcohol (PVA), polychlorinated vinyl (PVC), cycloolefin copolymer (C OC), norbornene-containing resin, polyether sulfone, cellophane, and aromatic polyamide; In addition, glass substrates such as quartz glass and soda glass can be suitably used.
- the transparent substrate is preferably made of PET, TAC, COC, norbornene-containing resin, or the like.
- the thickness of the transparent substrate is not particularly limited, but is preferably 5 to 600 ⁇ m, and in consideration of the productivity, a thickness in the range of 5 to 200 ⁇ m is used. Is particularly preferred.
- the refractive index n of the transparent resin and the refractive index n of the bowl-shaped resin fine particles need to satisfy the relationship of the above formula (1). That is, the anti-glare film of the present invention z
- the light diffusion layer of LUM two types of interfaces are formed: transparent resin phase-spherical fine resin particles and transparent resin phase bowl-shaped resin fine particles.
- the spherical resin fine particles have a refractive index n and a bowl-like particle.
- the refractive index n of the fine oil particles satisfies the relationship of the above formula (2). If so, the cause
- the average particle diameter D of the spherical resin fine particles and the average particle diameter D of the bowl-shaped resin fine particles are represented by the above formula (
- the antiglare film of the present invention preferably has an uneven surface of the light diffusion layer.
- the convex portion of the concave-convex surface may be formed only of spherical resin fine particles, but is preferably formed of spherical spherical particles and bowl-shaped resin fine particles.
- the convex portion of the uneven surface is formed of a spherical resin fine particle and a bowl-shaped resin fine particle
- the convex portion is a portion on the convex portion side of the true spherical resin fine particle and the bowl-shaped resin fine particle, that is, a hemispherical shape.
- Part and a ring-shaped convex part formed on the edge of the concave part on the concave side of the bowl-shaped resin fine particles.
- the shape and number of convex parts should be observed with a laser microscope or SEM. Can be.
- the convex portions of the uneven surface are formed of spherical resin fine particles and bowl-shaped resin fine particles
- the hemispherical portions of the true spherical resin fine particles and the bowl-shaped resin fine particles are used. It is more preferable that the total number of the formed convex portions is larger than the number of ring-shaped convex portions on the concave side of the bowl-shaped resin fine particles. That is, the convex portion formed by the hemispherical portion of the spherical resin fine particles and the bowl-shaped resin fine particles is mainly used, and the convex portion formed by the ring-shaped convex portion on the concave side of the bowl-shaped resin fine particles is appropriately formed.
- the average roughness Ra of the uneven surface of the light diffusion layer is 0.
- a more preferred range preferably in the range of 1-1.O / z m, is in the range of 0.1-0. If the average roughness Ra is less than 0.1 m, the surface roughness becomes small and the anti-glare effect of suppressing the reflection of external light becomes insufficient.If it is greater than 1.O / zm, the roughness becomes large. It is not preferable because whiteness occurs.
- the thickness of the thinnest portion of the light diffusion layer of the antiglare film is preferably larger than the height (h) of the bowl-shaped resin fine particles. If the thickness of the thinnest part is thinner than the height of the bowl-shaped resin particles, all the spherical resin particles and the bowl-shaped resin particles dispersed in the transparent resin phase contribute to the unevenness of the uneven surface. As a result, the unevenness on the surface of the antiglare film becomes large, and whiteness occurs. In addition, the effect of suppressing the blurring of the image is reduced due to the complicated uneven shape of the antiglare film surface.
- UV-curable (UV) acrylate having a refractive index of 1.67 containing zirconium 100 parts of resin (trade name: Kz7391, solid content concentration 42%, manufactured by JSR) and 18 parts of diantaerythritol hexatalylate having a refractive index of 1.51 were mixed, and the refractive index at the time of curing was 1.60.
- N A transparent resin solution having a solid content of 51% was obtained.
- this transparent resin solution 100 parts of this transparent resin solution, 1 part of 2-hydroxy-2-methylpropiophenone as a photoinitiator, and a resin fine particle having a refractive index of 1.59 (n) and an average particle size of 3. ⁇ ( ⁇ ) 3 parts of spherical resin particles made of styrene resin and a refractive index of 1.
- a coating material was obtained by adding 2 parts of silicone resin bowl-shaped resin fine particles of IX m (b) and 80 parts of methyl isobutyl ketone as a solvent and dispersing them in a sand mill for 30 minutes.
- the obtained paint was applied to a transparent substrate having a thickness of m and a transmittance of 94% with a TAC force by a reverse coating method, and dried at 100 ° C for 2 minutes.
- Ultraviolet irradiation was performed with a lamp (irradiation distance: 10 cm, irradiation time: 30 seconds), and the coating film was cured to prepare an antiglare film.
- the obtained paint was applied on a transparent substrate with a thickness of 80 m and a transmittance of 94% with a TAC force by a reverse coating method, dried at 100 ° C for 2 minutes, and a 120 WZcm condensing high-pressure mercury lamp was used.
- UV irradiation irradiation distance: 10 cm, irradiation time: 30 seconds
- a comparative anti-glare film having a light diffusion layer having a thickness of 3.2 / ⁇ and an average roughness Ra of 0.24 was produced.
- a coating material was obtained by adding 4 parts of the fine particles and 130 parts of methyl isobutyl ketone as a solvent and dispersing the mixture in a sand mill for 30 minutes.
- the obtained paint is applied on a transparent substrate having a film thickness of 80; ⁇ ⁇ , and a transmittance of 94% and having a TAC force by a reverse coating method, and dried at 100 ° C for 2 minutes.
- Ultraviolet irradiation was performed with one lamp (irradiation distance: 10 cm, irradiation time: 30 seconds) to cure the coating film.
- the anti-glare property was determined by reflecting a fluorescent lamp from the front and observing the appearance of the outline.
- the whiteness was observed from the front without reflecting the fluorescent light, and the blackness of the antiglare film was observed.
- the blur of the image is displayed using a Microsoft software (Microsoft Windows (registered trademark)) using MS Mincho, a font size of 11 points, at a distance of 50 cm from the screen. Observation was made to confirm the blur on the display of numbers.
- Microsoft Windows registered trademark
- Table 1 shows the evaluation results.
- the evaluation criteria in Table 1 are as follows.
- A no reflection is observed
- C reflection is observed.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/556,129 US7283304B2 (en) | 2004-03-29 | 2005-03-16 | Antiglare film |
JP2006519422A JP4839212B2 (ja) | 2004-03-29 | 2005-03-16 | 防眩フィルム |
Applications Claiming Priority (4)
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JP2004094560 | 2004-03-29 | ||
JP2004094561 | 2004-03-29 | ||
JP2004-094560 | 2004-03-29 | ||
JP2004-094561 | 2004-03-29 |
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WO2005093468A1 true WO2005093468A1 (ja) | 2005-10-06 |
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ID=35056322
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PCT/JP2005/004613 WO2005093468A1 (ja) | 2004-03-29 | 2005-03-16 | 防眩フィルム |
Country Status (5)
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US (1) | US7283304B2 (ja) |
JP (1) | JP4839212B2 (ja) |
KR (1) | KR100711483B1 (ja) |
TW (1) | TWI260424B (ja) |
WO (1) | WO2005093468A1 (ja) |
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EP2006711A2 (en) * | 2006-03-16 | 2008-12-24 | Daicel Chemical Industries, Ltd. | Anti-dazzling film |
US8047662B2 (en) * | 2007-03-27 | 2011-11-01 | Fujifilm Corporation | Antiglare film, polarizing plate and image display device |
JP2017107193A (ja) * | 2015-12-07 | 2017-06-15 | 恵和株式会社 | 上用光拡散シート及びバックライトユニット |
WO2018180541A1 (ja) | 2017-03-31 | 2018-10-04 | 株式会社巴川製紙所 | 防眩性フィルム及び表示装置 |
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TWI319095B (en) * | 2005-09-29 | 2010-01-01 | Skc Haas Display Films Llc | Light diffusive sheet for backlight unit and preparation thereof |
US20070139781A1 (en) * | 2005-12-15 | 2007-06-21 | Fujifilm Corporation | Optical film, and polarizing plate, image display device and liquid crystal display device including the same |
US7848021B2 (en) * | 2006-02-17 | 2010-12-07 | Fujifilm Corporation | Optical film, antireflection film, polarizing plate and image display device |
JP4571691B2 (ja) * | 2006-08-09 | 2010-10-27 | 株式会社きもと | 防眩性部材、及びそれを用いた表示装置並びにスクリーン |
US8399101B2 (en) * | 2006-09-19 | 2013-03-19 | E I Du Pont De Nemours And Company | Toughened poly(hydroxyalkanoic acid) compositions |
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JP4155338B1 (ja) * | 2007-03-14 | 2008-09-24 | ソニー株式会社 | 防眩性フィルムの製造方法 |
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TW200921139A (en) * | 2007-11-15 | 2009-05-16 | Daxon Technology Inc | Antiglare film and coating composition for antiglare films |
KR100963674B1 (ko) * | 2007-12-05 | 2010-06-15 | 제일모직주식회사 | 균일한 표면 거칠기 및 저 리타데이션 값을 가지는 광확산필름 및 그 제조방법 |
TWI365999B (en) * | 2008-07-31 | 2012-06-11 | Benq Materials Corp | Antiglare film and method of forming the same |
JP5196352B2 (ja) * | 2009-06-09 | 2013-05-15 | 住友化学株式会社 | 防眩フィルムの製造方法、防眩フィルムおよび金型の製造方法 |
CN105388725B (zh) * | 2010-04-30 | 2018-01-30 | 佳能株式会社 | 充电构件、处理盒和电子照相设备 |
DE102014201683B4 (de) * | 2014-01-30 | 2017-07-06 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Hochleistungsstrahlungssystem mit Strahlungsmodifizierer |
JP7323986B2 (ja) * | 2018-03-19 | 2023-08-09 | 株式会社きもと | 防眩フィルム |
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- 2005-03-16 WO PCT/JP2005/004613 patent/WO2005093468A1/ja active Application Filing
- 2005-03-16 US US10/556,129 patent/US7283304B2/en not_active Expired - Fee Related
- 2005-03-16 KR KR1020057022962A patent/KR100711483B1/ko not_active IP Right Cessation
- 2005-03-28 TW TW094109518A patent/TWI260424B/zh not_active IP Right Cessation
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EP2006711A4 (en) * | 2006-03-16 | 2011-01-19 | Daicel Chem | ANTI GLARE FILM |
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WO2018180541A1 (ja) | 2017-03-31 | 2018-10-04 | 株式会社巴川製紙所 | 防眩性フィルム及び表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4839212B2 (ja) | 2011-12-21 |
US7283304B2 (en) | 2007-10-16 |
KR100711483B1 (ko) | 2007-04-24 |
TWI260424B (en) | 2006-08-21 |
TW200604562A (en) | 2006-02-01 |
KR20060014432A (ko) | 2006-02-15 |
JPWO2005093468A1 (ja) | 2008-02-14 |
US20070076298A1 (en) | 2007-04-05 |
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