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WO2017082134A1 - Plaque de polarisation et dispositif d'affichage à cristaux liquides - Google Patents

Plaque de polarisation et dispositif d'affichage à cristaux liquides Download PDF

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Publication number
WO2017082134A1
WO2017082134A1 PCT/JP2016/082577 JP2016082577W WO2017082134A1 WO 2017082134 A1 WO2017082134 A1 WO 2017082134A1 JP 2016082577 W JP2016082577 W JP 2016082577W WO 2017082134 A1 WO2017082134 A1 WO 2017082134A1
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WIPO (PCT)
Prior art keywords
polarizing plate
polarizer
coating layer
resin
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/082577
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English (en)
Japanese (ja)
Inventor
光明 小川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016174380A external-priority patent/JP6819156B2/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to KR1020187016173A priority Critical patent/KR102685433B1/ko
Priority to CN201680065539.2A priority patent/CN108351460B/zh
Publication of WO2017082134A1 publication Critical patent/WO2017082134A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to a polarizing plate and a liquid crystal display device.
  • a protective film (brightness enhancement film) is laminated on the backlight side of the rear polarizing plate, and as a result, the protective film is bonded to the backlight unit via a double-sided tape.
  • a protective film integrated polarizing plate in which a polarizing plate and a protective film are bonded is used as the polarizing plate.
  • the object of the present invention is to prevent the double-sided tape from peeling off due to impact such as transportation or dropping in the process after bonding the protective film integrated polarizing plate attached to the liquid crystal cell and the backlight unit. It is an object to provide a polarizing plate that can be used and a liquid crystal display device using the polarizing plate.
  • the present invention provides the following polarizing plate and a liquid crystal display device using the polarizing plate.
  • the silica particles are particles that are surface-modified with an organic compound having a polymerizable unsaturated group.
  • the protective film (A) contains at least one resin selected from the group consisting of a cellulose resin, a (meth) acrylic resin, a cyclic polyolefin resin, a polyester resin, and a polycarbonate resin [1].
  • a liquid crystal display device comprising the polarizing plate according to any one of [1] to [12].
  • the protective film which is the junction between the liquid crystal cell and the backlight unit, is provided with a coating layer having an average unevenness interval Sm of 10 ⁇ m or less, thereby protecting it by impacts such as transportation and dropping in the process. It is possible to provide a polarizing plate capable of effectively preventing peeling of the film and the double-sided tape, and a liquid crystal display device including the same.
  • the polarizing plate of the present invention includes a polarizer, a protective film (A), and a coating layer in this order.
  • a polarizer an optical film having a property of absorbing linearly polarized light having a vibration surface parallel to the optical axis and transmitting linearly polarized light having a vibration surface orthogonal to the optical axis is preferable.
  • a polarizer in which a dichroic dye (iodine or dichroic organic dye) is adsorbed and oriented on a resin film.
  • the polyvinyl alcohol resin that forms the polyvinyl alcohol resin film can be obtained by saponifying a polyvinyl acetate resin.
  • the polyvinyl acetate-based resin include polyvinyl acetate, which is a homopolymer of vinyl acetate, and copolymers of vinyl acetate and other monomers copolymerizable therewith.
  • examples of other monomers copolymerized with vinyl acetate include unsaturated carboxylic acids, olefins, vinyl ethers, unsaturated sulfonic acids, and acrylamides having an ammonium group.
  • the degree of saponification of the polyvinyl alcohol-based resin is usually about 85 to 100 mol%, preferably 98 mol% or more.
  • This polyvinyl alcohol-based resin may be further modified, and polyvinyl formal and polyvinyl acetal modified with aldehydes may be used.
  • the degree of polymerization of the polyvinyl alcohol resin is usually 1000 to 10000, preferably 1500 to 5000.
  • Specific examples of polyvinyl alcohol resins and dichroic dyes include compounds exemplified in JP 2012-159778 A.
  • the film formed from the polyvinyl alcohol resin is used as a polarizer raw film.
  • the method for forming a polyvinyl alcohol-based resin is not particularly limited, and can be formed by a known method.
  • the thickness of the raw film made of polyvinyl alcohol resin is not particularly limited, but is usually 1 to 150 ⁇ m. In consideration of easiness of stretching, the thickness is preferably 3 ⁇ m or more.
  • a polarizer is a step of uniaxially stretching a polyvinyl alcohol-based resin film; a step of dyeing a polyvinyl alcohol-based resin film with a dichroic dye and adsorbing the dichroic dye; a polyvinyl alcohol-based adsorbed dichroic dye
  • the resin film can be produced through a step of treating with a boric acid aqueous solution; a step of washing with water after the treatment with the boric acid aqueous solution; and a drying step.
  • the thickness of the polarizer is usually 2 to 40 ⁇ m, preferably 5 to 30 ⁇ m.
  • the polarizer may be manufactured by a method described in JP 2012-159778 A.
  • a polyvinyl alcohol resin layer is formed by coating a polyvinyl alcohol resin on a base film, A polarizer is obtained by dyeing.
  • the protective film (A) is preferably provided by being laminated on a polarizer.
  • the protective film (A) preferably contains a light-transmitting thermoplastic resin, and more preferably contains a thermoplastic resin having good mechanical strength and thermal stability.
  • polyolefin resins such as chain polyolefin resins (polyethylene resins, polypropylene resins, etc.), cyclic polyolefin resins (norbornene resins, etc.); cellulose resins (triesters such as cellulose ester resins) Acetylcellulose, diacetylcellulose); polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate; (meth) acrylic resins such as copolymers of (meth) acrylic resins and (meth) acrylic ester resins Examples of the resin include polystyrene resin, polycarbonate resin, polysulfone resin, polyethersulfone resin, and polyimide resin.
  • the protective film preferably contains at least one resin selected from the group consisting of cellulose resins, (meth) acrylic resins, cyclic polyolefin resins, polyester resins, and polycarbonate resins.
  • the protective film (A) may be a protective film having both optical functions such as a retardation film (optical compensation film) and a brightness enhancement film.
  • the retardation film include a film obtained by uniaxially or biaxially stretching a cyclic polyolefin resin film or the like, or a film obtained by coating and orienting a liquid crystal compound on a cellulose resin film or the like.
  • the protective film (A) may be a birefringent film. Further, the protective film (A) may be a laminated film of a plurality of protective films.
  • N x is the in-plane slow axis direction of the refractive index in the above formulas
  • n y is a refractive index in the in-plane fast axis direction (perpendicular to the plane slow axis direction)
  • n z is the refractive index in the thickness direction
  • d is the thickness of the film.
  • the retardation film include a 1 / 4 ⁇ plate.
  • the brightness enhancement film is used for the purpose of improving brightness in a liquid crystal display device or the like.
  • a brightness enhancement film As a brightness enhancement film, a plurality of thin film films having different refractive index anisotropy are laminated to form a reflection type polarization separation sheet designed to produce anisotropy in reflectance, an alignment film of cholesteric liquid crystal polymer, and its orientation Examples thereof include a circularly polarized light separating sheet having a liquid crystal layer supported on a film substrate.
  • Commercially available products such as Advanced Polarized Film, Version 3 manufactured by 3M may also be used as the brightness enhancement film.
  • the thickness of the protective film (A) is usually 5 to 200 ⁇ m, preferably 10 to 80 ⁇ m, more preferably 10 to 40 ⁇ m.
  • the polarizing plate of this invention is a polarizing plate which contains a polarizer, a protective film (A), and a coating layer in this order, and also has a protective film (B) in the side far from the coating layer in a polarizer.
  • the polarizing plate has a configuration including a protective film (B), a polarizer, a protective film (A), and a coating layer in this order.
  • the protective film (B) is preferably laminated on the polarizer.
  • a protective film similar to the protective film (A) described above can be selected.
  • the polarizing plate of this invention contains a polarizer, a protective film (A), and a coating layer in this order, it is preferable that the coating layer is provided in contact with the protective film (A).
  • the coating layer refers to a layer obtained by applying a coating liquid containing a resin, and the coating layer is preferably formed from a (meth) acrylic resin, and may have a single layer structure, A multilayer structure may be used.
  • the coating layer include an antiglare layer, a hard coat layer, a low refractive index layer, an antireflection layer, an antistatic layer, an antifouling layer, or a layer having two or more functions (characteristics).
  • a hard coat layer is preferred.
  • the surface far from the polarizer in the coating layer of the polarizing plate of the present invention satisfies the surface characteristics represented by the following formula (1).
  • Sm is preferably 5 ⁇ m or less, and more preferably 4 ⁇ m or less.
  • the surface far from the polarizer in the normal coating layer is a surface to which a double-sided tape for bonding to the backlight unit is attached.
  • Sm ⁇ 10 In the formula (1), Sm represents an average interval of the unevenness of the light source side surface in the coating layer. The unit is ⁇ m.
  • the surface of the coating layer on the side far from the polarizer satisfies the above formula (1), the surface of the coating layer has fine surface irregularities, so that the step in the process after bonding the polarizing plate and the backlight unit is performed. Peeling between the coating layer and a member such as a double-sided tape due to an impact such as conveyance or dropping can be prevented.
  • the average interval Sm of the unevenness is a parameter defined by JIS B 0601: 1994 “average value of interval between the valley and the period obtained from the intersection where the roughness curve intersects the average line”, and is defined by the following equation: .
  • Sm can be measured by a commercially available three-dimensional shape measuring device, a roughness meter, or the like.
  • the arithmetic average roughness Ra is preferably 50 nm or more.
  • the arithmetic average roughness Ra is a parameter defined in 4.2.1 of JIS B 0601: 2013, and means an average value of absolute values of the height Z (x) in the reference length.
  • the Sm value can be adjusted by a known method applied in the field of an antiglare film used to prevent reflection of external light and glare due to surface irregularities, and the coating layer can be formed from a coating solution containing particles. And a method of transferring a surface uneven shape by pressing a mold (embossed mold) provided with surface unevenness onto a coating layer of a translucent resin.
  • the coating layer in which the Sm value of the polarizing plate of the present invention is adjusted is preferably a coating layer containing particles.
  • the method for forming the coating layer containing particles include a method of applying a coating liquid containing a translucent resin and particles.
  • the coating method for the coating liquid include a gravure coating method, a micro gravure coating method, a rod coating method, a knife coating method, an air knife coating method, a kiss coating method, and a die coating method.
  • the particles contained in the coating liquid are preferably translucent particles such as (meth) acrylic resins, melamine resins, polyethylene resins, polystyrene resins, organic silicone resins, (meth) acrylic acid ester-styrene copolymers, etc.
  • “(meth) acrylic acid” represents at least one selected from the group consisting of acrylic acid and methacrylic acid. Notations such as “(meth) acrylate” have the same meaning.
  • Examples of the particle shape include a spherical shape, a flat shape, a plate shape, a needle shape, and an indefinite shape.
  • silica particles are more preferable.
  • the silica particle surface-modified with the organic compound which has a polymerizable unsaturated group which can react with a translucent resin is especially preferable at the point of forming a strong bond with the below-mentioned translucent resin.
  • Silica particles surface-modified with an organic compound having a polymerizable unsaturated group are polymerizable unsaturated groups having a (meth) acryloyl group which is a functional group capable of reacting with the silanol group on the silanol group on the surface of the silica particle. It can be obtained by reacting the contained organic compound.
  • the organic compound having a polymerizable unsaturated group for modifying the surface of the silica particles may correspond to a translucent resin described later, but the compound for modifying the surface of the silica particles is And is included as a constituent element of silica particles, and is distinguished from a light-transmitting resin described later.
  • Examples of the polymerizable unsaturated group-containing organic compound having a functional group capable of reacting with the silanol group include compounds represented by the following formula (I). (In the formula, R 1 represents a hydrogen atom or a methyl group, and R 2 represents a halogen atom or a group represented by the following formula.)
  • Examples of the compound represented by the formula (I) include (meth) acrylic acid, (meth) acrylic acid chloride, 2-isocyanatoethyl (meth) acrylate, glycidyl (meth) acrylate, (meth) acrylic acid 2, Examples include (meth) acrylic acid derivatives such as 3-iminopropyl, 2-hydroxyethyl (meth) acrylate, and (meth) acryloyloxypropyltrimethoxysilane.
  • the organic compound having a polymerizable unsaturated group that modifies the surface of the silica particles may be used alone or in combination of two or more.
  • the content of the particles is usually 3 to 60 parts by weight, preferably 3 to 50 parts by weight with respect to 100 parts by weight of the light-transmitting resin described later.
  • the content of the particles exceeds 60 parts by weight, the transparency of the resulting coating layer may be impaired.
  • the polarizing plate is applied to the image display device, the light scattering intensity is too strong. For example, in the black display, light leaking obliquely with respect to the front direction of the image display device is directed to the front direction by the coating layer. It may be strongly scattered, reducing the contrast.
  • the weight average particle diameter of the particles is preferably 1 nm to 1 ⁇ m, more preferably 1 to 50 nm, and further preferably 1 to 20 nm. The weight average particle diameter can be measured with a scanning tunneling microscope.
  • Examples of the translucent resin contained in the coating liquid include an active energy ray curable resin such as an ultraviolet curable resin and an electron beam curable resin, a thermosetting resin, a thermoplastic resin, and a metal alkoxide.
  • An active energy ray-curable resin is preferable in that high hardness and scratch resistance can be imparted.
  • Active energy ray curable resins include polyfunctional (meth) acrylates such as (meth) acrylic acid esters of polyhydric alcohols; terminal isocyanato group urethane prepolymers obtained by reaction of diisocyanates with polyhydric alcohols (meth) Polyfunctional urethane (meth) acrylates such as those obtained by reacting hydroxyalkyl esters of acrylic acid are included.
  • polyether resins having a (meth) acrylate functional group polyester resins, epoxy resins, alkyd resins, spiroacetal resins, polybutadiene resins, polythiol polyene resins, and the like can also be active energy ray curable resins.
  • thermosetting resin examples include a phenol resin, a urea melamine resin, an epoxy resin, an unsaturated polyester resin, and a silicone resin, in addition to a thermosetting urethane resin composed of an acrylic polyol and an isocyanate prepolymer.
  • Thermoplastic resins include cellulose derivatives such as acetylcellulose, nitrocellulose, acetylbutylcellulose, ethylcellulose, and methylcellulose; vinyl acetate homopolymers or copolymers, vinyl chloride homopolymers or copolymers, vinylidene chloride Vinyl resins such as homopolymers or copolymers; acetal resins such as polyvinyl formal and polyvinyl butyral; (meth) acrylic resins such as (meth) acrylic resins and (meth) acrylic acid ester copolymers Examples of resins include polystyrene resins, polyamide resins, polyester resins, and polycarbonate resins.
  • an alkoxysilane-based material can be used, and the metal alkoxide forms a silicon oxide-based matrix by hydrolysis or dehydration condensation.
  • Examples include tetramethoxysilane and tetraethoxysilane.
  • active energy ray curable resins and thermosetting resins are in a liquid state, and metal alkoxides are often liquid.
  • the liquid resin can be used as it is as a coating liquid for forming a coating layer, but if necessary, it may be diluted with a solvent or the like as a coating liquid.
  • a resin prepared as a solid such as a thermoplastic resin is preferably used as a coating solution in a state where it is usually dissolved in an appropriate solvent.
  • the coating liquid containing an active energy ray curable resin, a thermosetting resin, a metal alkoxide, or a thermoplastic resin may contain an appropriate additive such as a leveling agent or a dispersant.
  • the coating liquid contains an active energy ray-curable resin
  • the coating liquid contains a photopolymerization initiator.
  • photopolymerization initiators benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin-n-butyl ether, benzoin isobutyl ether, acetophenone, dimethylaminoacetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2, 2-diethoxy-2-phenylacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- [4- (methylthio) phenyl] -2- Morpholino-propan-1-one, 4- (2-hydroxyethoxy) phenyl-2 (hydroxy-2-propyl) ketone, benzophenone, p-phenylbenzophenone, 4,4'-diethylamin
  • the coating liquid may contain an ultraviolet absorber.
  • the UV absorber include benzotriazole UV absorbers, hindered amine UV absorbers, benzophenone UV absorbers, and triazine UV absorbers.
  • An ultraviolet absorber may be used independently and may be used in combination of 2 or more type.
  • a radical polymerizable ultraviolet absorber having a radical polymerizable double bond in the molecule is preferred.
  • the coating liquid may contain a light stabilizer.
  • light stabilizers include hindered amine light stabilizers, benzophenone light stabilizers, and benzotriazole light stabilizers.
  • a light stabilizer may be used independently and may be used in combination of 2 or more type.
  • the coating layer is provided in contact with the protective film (A), for the purpose of improving the coating property of the coating liquid or improving the adhesion between the resulting coating layer and the protective film (A),
  • Various surface treatments may be applied to the surface on which the coating for forming the coating layer is applied. Examples of the surface treatment include corona discharge treatment, glow discharge treatment, acid surface treatment, alkali surface treatment, and ultraviolet irradiation treatment.
  • the transmittance of the coating layer is preferably 80% or more, and more preferably 95% or more.
  • the transmissivity here refers to the transmissivity with respect to light having a wavelength of 380 to 780 nm, and the transmissivity subjected to visibility correction. According to the present invention, both the translucency of the coating layer and the adhesion to the double-sided tape can be achieved.
  • the pencil hardness of the coating layer is preferably B or more, more preferably F or more, still more preferably 2H or more, and usually 9H or less.
  • the pencil hardness is measured in accordance with the pencil hardness test specified in JIS K5600-5-4: 1999 “General test method for paints—Part 5: Mechanical properties of coating film—Section 4: Scratch hardness (pencil method)”. be able to.
  • the backlight unit and the polarizing plate having the coating layer may be arranged very close to each other, and the backlight unit comes into contact with the coating layer by setting the pencil hardness of the coating layer to B or more. Can also prevent the surface of the polarizing plate from being scratched.
  • a polarizing plate 10 includes a polarizer 13 and a coating layer 16, a protective film (A) 14 is provided between the polarizer 13 and the coating layer 16, and a side of the polarizer far from the coating layer.
  • the protective film (B) 15 is provided on the surface.
  • the polarizing plate 10 is a polarizing plate with an adhesive layer in which an adhesive layer 17 is laminated on the surface of the protective film 15 far from the coating layer in order to bond the image display element 20 and the polarizing plate.
  • the adhesive examples include a water-based adhesive containing a polyvinyl alcohol-based resin or a urethane resin as a main component, and a photo-curable adhesive including a photo-curable resin such as an ultraviolet curable resin (such as an epoxy-based resin).
  • a photo-curable adhesive including a photo-curable resin such as an ultraviolet curable resin (such as an epoxy-based resin).
  • the pressure-sensitive adhesive include pressure-sensitive adhesives based on acrylic polymers, silicone polymers, polyesters, polyurethanes, polyethers, and the like.
  • the adhesive contains light scattering particles, glass fibers, glass beads, resin beads, fillers such as metal powder and other inorganic powders, pigments, colorants, antioxidants, ultraviolet absorbers, etc. It may be.
  • the bonding surface of the polarizer and / or the protective film may be subjected to easy adhesion treatment such as saponification treatment, corona treatment, primer treatment, anchor coating treatment and the like.
  • a polarizing plate 50 represents a polarizing plate using a brightness enhancement film 54 as the protective film (A) 14 in the polarizing plate shown in FIG.
  • a polarizing plate 60 has a polarizer 63 and a coating layer 69, and a protective film 68 and a brightness enhancement film 64 are provided between the polarizer 63 and the coating layer 69 from the side close to the polarizer.
  • a protective film (A) is formed.
  • a protective film (B) 65 is provided on the surface of the polarizer far from the coating layer.
  • the protective film 68 and the brightness enhancement film 64 are bonded via an adhesive layer 66.
  • the polarizing plate 60 is a polarizing plate with an adhesive layer in which an adhesive layer 67 is laminated on a surface far from the coating layer of the protective film (B) 65 in order to bond the image display element 20 and the polarizing plate. It is.
  • the adhesive agent layer which bonds a polarizer and protective film (A) and (B) is not illustrated.
  • a polarizing plate 70 has a polarizer 73 and a coating layer 77, and a protective film 74 and a brightness enhancement film 75 are provided between the polarizer 73 and the coating layer 77 from the side close to the polarizer.
  • a protective film (A) is formed.
  • the protective film 74 and the brightness enhancement film 75 are bonded via an adhesive layer 76.
  • the polarizing plate 70 is a polarizing plate with a pressure-sensitive adhesive layer in which a pressure-sensitive adhesive layer 72 is laminated on a surface far from the coating layer of the polarizer 73 in order to bond the image display element 20 and the polarizing plate.
  • the adhesive layer which bonds a polarizer and a protective film (A) is not illustrated.
  • the polarizing plate of the present invention can be preferably used for various devices such as a liquid crystal display device, and can be particularly preferably used for a transmissive or transflective liquid crystal display device.
  • image display elements forming a liquid crystal display device include VA mode, IPS mode, TN mode, FFS mode, AFFS mode, OCB mode, and liquid crystal driving mode using a liquid crystal of blue phase.
  • the liquid crystal display device is provided with known members used in liquid crystal display devices such as a prism array sheet, a lens array sheet, a light diffusion plate, and a backlight. Can do.
  • the polarizing plate of the present invention is preferably installed on the backlight side of the image display element, so that the coating layer in the polarizing plate is the layer closest to the backlight. It is more preferable to install in the.
  • the polarizing plate of the present invention may be installed on both sides of the image display element.
  • An example of the configuration of a liquid crystal display device having the polarizing plate of the present invention will be described with reference to FIG.
  • a polarizing plate 10 with an adhesive is bonded to the backlight side of the image display element 20 via an adhesive layer 17.
  • the coating layer 16 of the polarizing plate with an adhesive 10 and the backlight unit 40 are bonded together by a double-sided tape 41.
  • the backlight includes a light source (not shown), a light guide plate 42, and a prism array sheet 43.
  • a triacetyl cellulose film [trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.] having a thickness of 40 ⁇ m was used.
  • Shin-Nakamura Chemical Co., Ltd. produced silica particles (weight average particle diameter of 1 to 20 nm) surface-modified with an organic compound having a polymerizable unsaturated group described in JP-A-9-100111 on one side of a triacetyl cellulose film.
  • a mixture of two types of acrylic hard coat resins (product name: A-DCP, UA-1100H) obtained from Kogyo Co., Ltd. was applied by a bar coater and dried in a constant temperature bath at 80 ° C. for 1 minute.
  • the irradiation amount 350mJ / cm 2 from the coated surface side Ultraviolet rays were irradiated to form a hard coat layer as a coating layer, and a triacetyl cellulose film having a hard coat layer was obtained. It was F when the pencil hardness of the hard coat layer was measured.
  • a brightness enhancement film (Advanced Polarized Film, Version 3 manufactured by 3M) was used.
  • a hard coat layer was formed as a coating layer on the polycarbonate surface of the brightness enhancement film in the same manner as in Production Example 1 to obtain a brightness enhancement film having a hard coat layer. It was F when the pencil hardness of the hard coat layer was measured.
  • a brightness enhancement film (Advanced Polarized Film, Version 3 manufactured by 3M) was used.
  • a hard coat layer was formed as a coating layer on the polycarbonate surface of the brightness enhancement film by the same method except that the UV output was changed to 60% and the irradiation amount was 290 mJ / cm 2 from the conditions described in Production Example 1.
  • a brightness enhancement film having a coating layer was obtained. It was HB when the pencil hardness of the hard coat layer was measured.
  • a brightness enhancement film (Advanced Polarized Film, Version 3 manufactured by 3M) was used.
  • a hard coat layer was formed as a coating layer on the polycarbonate surface of the brightness enhancement film by the same method except that the UV output was changed to 55% and the irradiation amount was 230 mJ / cm 2 from the conditions described in Production Example 1.
  • a brightness enhancement film having a coating layer was obtained. It was B when the pencil hardness of the hard coat layer was measured.
  • Example 1 A 30 ⁇ m-thick polyvinyl alcohol film (average polymerization degree of about 2400, saponification degree of 99.9 mol% or more) was uniaxially stretched about 5 times by dry stretching, and further kept in a pure water at 60 ° C. while maintaining tension. After being immersed for 1 minute, it was immersed in an aqueous solution containing 0.05 part of iodine and 5 parts of potassium iodide for 60 seconds at 28 ° C. with respect to 100 parts of water. 100 parts of water was immersed in an aqueous solution containing 8.5 parts of potassium iodide and 8.5 parts of boric acid at 72 ° C. for 300 seconds.
  • the film was washed with pure water at 26 ° C. for 20 seconds and then dried at 65 ° C. to obtain a 11 ⁇ m thick polarizer in which iodine was adsorbed and oriented on a polyvinyl alcohol film.
  • 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof.
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • An epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the triacetyl cellulose film having the hard coat layer obtained in Production Example 1 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Got.
  • Example 2 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • an epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the brightness enhancement film having the hard coat layer obtained in Production Example 2 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Obtained.
  • Example 3 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • An epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • a 40 ⁇ m-thick triacetyl cellulose film (trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.) and a polarizer were bonded as a protective film through the pressure-sensitive adhesive layer.
  • the protective film (A) is a laminated film of a triacetyl cellulose film and a brightness enhancement film.
  • Example 4 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • An epoxy adhesive was applied, and a 40 ⁇ m thick triacetyl cellulose film (trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.) was bonded as a protective film.
  • An adhesive (trade name “# L2” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the triacetyl cellulose film to form an adhesive layer having a thickness of 5 ⁇ m.
  • the brightness enhancement film having the hard coat layer obtained in Production Example 2 was bonded via the pressure-sensitive adhesive layer so that the hard coat layer became the outermost surface of the polarizing plate.
  • the protective film (A) is a laminated film of a triacetyl cellulose film and a brightness enhancement film.
  • Example 5 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • an epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the brightness enhancement film having a hard coat layer obtained in Production Example 3 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Obtained.
  • Example 6 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • an epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the brightness enhancement film having a hard coat layer obtained in Production Example 4 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Obtained.
  • a triacetyl cellulose film having a thickness of 40 ⁇ m (trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.) was used. Coated with two types of acrylic hard coat resin (Product name: A-DCP, UA-1100H) obtained from Shin-Nakamura Chemical Co., Ltd. that does not contain silica particles on one side of a triacetyl cellulose film. And dried in a constant temperature bath at 80 ° C. for 1 minute.
  • the irradiation amount 350mJ / cm 2 from the coated surface side Ultraviolet rays were irradiated to form a hard coat layer as a coating layer, and a triacetyl cellulose film having a hard coat layer was obtained.
  • the pencil hardness of the hard coat layer was measured, it was below HB.
  • a brightness enhancement film (Advanced Polarized Film, Version 3 manufactured by 3M) was used.
  • a hard coat layer was formed as a coating layer on the polycarbonate surface of the brightness enhancement film in the same manner as in Production Example 5 to obtain a brightness enhancement film having a hard coat layer.
  • the pencil hardness of the hard coat layer was measured, it was below HB.
  • Example 1 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • an epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the triacetyl cellulose film having the hard coat layer obtained in Production Example 5 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Got.
  • Example 2 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • an epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective layer (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • the brightness enhancement film having the hard coat layer obtained in Production Example 6 and a polarizer are bonded so that the hard coat layer becomes the outermost surface of the polarizing plate, Obtained.
  • Example 3 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • An epoxy adhesive was applied, and an unstretched film (trade name “ZEONOR” manufactured by Nippon Zeon Co., Ltd.) made of a cycloolefin resin having a thickness of 23 ⁇ m was bonded as a protective film (B).
  • An adhesive (trade name “#KZ” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the other surface of the polarizer to form an adhesive layer having a thickness of 20 ⁇ m.
  • a 40 ⁇ m-thick triacetyl cellulose film (trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.) and a polarizer were bonded as a protective film through the pressure-sensitive adhesive layer.
  • the protective film (A) is a laminated film of a triacetyl cellulose film and a brightness enhancement film.
  • Example 4 A polarizer was obtained in the same manner as in Example 1. Next, on one surface of the obtained polarizer, 3 parts of carboxyl group-modified polyvinyl alcohol (trade name “KL-318” obtained from Kuraray Co., Ltd.) was dissolved in 100 parts of water, and an aqueous solution thereof. A water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • KL-318 carboxyl group-modified polyvinyl alcohol
  • a water-based epoxy resin added with 1.5 parts of a polyamide epoxy-based additive (trade name “Smiles Resin 650 (30)” manufactured by Taoka Chemical Industry Co., Ltd., aqueous solution with a solid content of 30%).
  • An epoxy adhesive was applied, and a 40 ⁇ m thick triacetyl cellulose film (trade name “KC4UY” manufactured by Konica Minolta Opto Co., Ltd.) was bonded as a protective film.
  • An adhesive (trade name “# L2” manufactured by Lintec Co., Ltd., acrylic adhesive) was applied to the triacetyl cellulose film to form an adhesive layer having a thickness of 5 ⁇ m.
  • the brightness enhancement film having the hard coat layer obtained in Production Example 6 was bonded via the pressure-sensitive adhesive layer so that the hard coat layer became the outermost surface of the polarizing plate.
  • the protective film (A) is a laminated film of a triacetyl cellulose film and a brightness enhancement film.
  • the backlight tape that protruded 30 to 40 mm from the glass in the laminate was sandwiched between chucks of an autograph AGS-50NX type tensile tester manufactured by Shimadzu Corporation, and the atmosphere was 23 ° C./50%.
  • the backlight tape adhesion was measured when the tape was peeled 180 degrees at a tensile speed of 300 mm / min. The results are shown in Table 1.
  • the transmittance (A) of the protective film having the coating layer obtained in Production Examples 1 and 2 and Production Examples 5 and 6, and the protective film (brightness enhancement film) before applying the coating liquid for forming the coating layer And the transmittance (B) of the triacetyl cellulose film) was measured.
  • the transmittance (A) was a relative value when the transmittance (B) was 100%. It measured with the spectrophotometer with an integrating sphere (JASCO Corporation make, V7100).
  • MD transmittance and TD transmittance are obtained in the wavelength range of 380 to 780 nm, the single transmittance at each wavelength is calculated based on the formula (1), and the visibility is corrected by the two-degree field of view (C light source) of JIS Z 8701 And the visibility corrected single transmittance (Ty) was obtained.
  • C light source the two-degree field of view
  • Ty the visibility corrected single transmittance
  • the “TD transmittance” is a transmittance when the direction of polarized light emitted from the Glan-Thompson prism is orthogonal to the transmission axis of the polarizing plate, and is expressed as “TD” in the equation (1).
  • Single transmittance (%) (MD + TD) / 2 Formula (1)
  • the present invention it is possible to prevent the double-sided tape from being peeled off due to an impact such as transportation or dropping in the process after bonding the protective film integrated polarizing plate attached to the liquid crystal cell and the backlight unit. It is possible to provide a polarizing plate that can be used, and a liquid crystal display device using the polarizing plate.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)

Abstract

Selon l'invention, s'il y a une mauvaise adhérence entre un ruban adhésif double face et un film de protection dans une plaque de polarisation, alors, lorsque ladite plaque est soumise à un choc lors du transport, d'une chute, etc., lors d'une étape, des forces vont se concentrer dans le film de protection, qui est la partie où la plaque de polarisation et une unité de rétroéclairage sont réunies, et la plaque de polarisation va se séparer du rétroéclairage. Par conséquent, il existe un besoin de fournir : une plaque de polarisation avec laquelle il est possible d'empêcher le décollement du ruban adhésif double face en raison du choc résultant du transport, d'une chute, etc., lors des étapes ultérieures à la jonction du rétroéclairage et de la plaque de polarisation dans laquelle le film de protection a été intégré; un dispositif d'affichage à cristaux liquides dans lequel la plaque de polarisation est utilisée. Pour atteindre ce but, l'invention concerne une plaque de polarisation qui comprend un polariseur, un film de protection (A) et une couche de revêtement, dans l'ordre indiqué, l'espacement moyen Sm entre des saillies et des creux sur la surface de la couche de revêtement sur le côté éloigné du polariseur étant de 10 µm ou moins.
PCT/JP2016/082577 2015-11-11 2016-11-02 Plaque de polarisation et dispositif d'affichage à cristaux liquides Ceased WO2017082134A1 (fr)

Priority Applications (2)

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KR1020187016173A KR102685433B1 (ko) 2015-11-11 2016-11-02 편광판 및 액정 표시 장치
CN201680065539.2A CN108351460B (zh) 2015-11-11 2016-11-02 偏振板和液晶显示装置

Applications Claiming Priority (4)

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JP2015221091 2015-11-11
JP2015-221091 2015-11-11
JP2016174380A JP6819156B2 (ja) 2015-11-11 2016-09-07 液晶表示装置
JP2016-174380 2016-09-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006106427A (ja) * 2004-10-06 2006-04-20 Nitto Denko Corp ハードコートフィルム、反射防止ハードコートフィルム、光学素子および画像表示装置
JP2008224758A (ja) * 2007-03-08 2008-09-25 Fujifilm Corp 液晶表示装置
JP2012128215A (ja) * 2010-12-16 2012-07-05 Konica Minolta Advanced Layers Inc ハードコートフィルム
JP2012173627A (ja) * 2011-02-23 2012-09-10 Konica Minolta Advanced Layers Inc ハードコートフィルム、偏光板及び表示装置
JP2012173626A (ja) * 2011-02-23 2012-09-10 Konica Minolta Advanced Layers Inc ハードコートフィルムの製造方法、ハードコートフィルム、偏光板及び表示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006106427A (ja) * 2004-10-06 2006-04-20 Nitto Denko Corp ハードコートフィルム、反射防止ハードコートフィルム、光学素子および画像表示装置
JP2008224758A (ja) * 2007-03-08 2008-09-25 Fujifilm Corp 液晶表示装置
JP2012128215A (ja) * 2010-12-16 2012-07-05 Konica Minolta Advanced Layers Inc ハードコートフィルム
JP2012173627A (ja) * 2011-02-23 2012-09-10 Konica Minolta Advanced Layers Inc ハードコートフィルム、偏光板及び表示装置
JP2012173626A (ja) * 2011-02-23 2012-09-10 Konica Minolta Advanced Layers Inc ハードコートフィルムの製造方法、ハードコートフィルム、偏光板及び表示装置

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