WO2022097594A1 - Plaque de polarisation et dispositif d'affichage d'image l'utilisant - Google Patents

Plaque de polarisation et dispositif d'affichage d'image l'utilisant Download PDF

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Publication number
WO2022097594A1
WO2022097594A1 PCT/JP2021/040188 JP2021040188W WO2022097594A1 WO 2022097594 A1 WO2022097594 A1 WO 2022097594A1 JP 2021040188 W JP2021040188 W JP 2021040188W WO 2022097594 A1 WO2022097594 A1 WO 2022097594A1
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group
polarizing plate
meth
parts
base polymer
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PCT/JP2021/040188
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English (en)
Japanese (ja)
Inventor
雅人 藤田
智之 木村
翔平 杉山
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日東電工株式会社
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Priority to KR1020227044631A priority Critical patent/KR20230104539A/ko
Priority to CN202180057986.4A priority patent/CN116097138A/zh
Publication of WO2022097594A1 publication Critical patent/WO2022097594A1/fr

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/37—Thiols
    • C08K5/372—Sulfides, e.g. R-(S)x-R'
    • C08K5/3725—Sulfides, e.g. R-(S)x-R' containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • 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
    • G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
    • 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
    • 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
    • G02F1/133528—Polarisers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8793—Arrangements for polarized light emission
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/285—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety
    • C08F220/286—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety and containing polyethylene oxide in the alcohol moiety, e.g. methoxy polyethylene glycol (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/22—Presence of unspecified polymer
    • C09J2400/226—Presence of unspecified polymer in the substrate
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/121—Antistatic or EM shielding layer

Definitions

  • the present invention relates to a polarizing plate and an image display device using the same.
  • Image display devices represented by liquid crystal displays and electroluminescence (EL) display devices are rapidly becoming widespread.
  • a polarizing plate is typically attached to a display panel via an adhesive layer.
  • improvement of the antistatic performance of the image display device is required.
  • it is required to improve the antistatic performance of the pressure-sensitive adhesive layer and reduce the resistance.
  • problems such as deterioration of the durability of the polarizing plate, poor appearance, and generation of cracks when the polarizing plate is processed into a deformed shape other than a rectangle.
  • the present invention has been made to solve the above-mentioned conventional problems, and its main purpose is to have a low resistance pressure-sensitive adhesive layer, yet it is thin, has excellent durability, suppresses appearance defects, and has a low resistance pressure-sensitive adhesive layer. It is an object of the present invention to provide a polarizing plate in which cracks are suppressed during irregular shape processing.
  • the polarizing plate according to the embodiment of the present invention has a polarizing element, a protective layer provided on one side of the polarizing element, an iodine permeation suppressing layer provided on the other side of the polarizing element, and the iodine permeation. It has a pressure-sensitive adhesive layer provided on the opposite side of the polarizing layer of the inhibitory layer.
  • the iodine permeation suppressing layer is a solidified product or a thermosetting product of a coating film of an organic solvent solution of a resin.
  • the pressure-sensitive adhesive composition constituting the pressure-sensitive adhesive layer contains a base polymer and an antistatic agent, and the base polymer has a glass transition temperature of ⁇ 50 ° C.
  • the base polymer comprises an alkoxy group-containing monomer as a monomer component.
  • the base polymer contains 20 parts by weight to 99 parts by weight of the alkoxy group-containing monomer with respect to 100 parts by weight of all the monomer components.
  • the alkoxy group-containing monomer is represented by the following formula: In the formula, R 1 is an alkyl group and n is an integer of 1 to 15.
  • the base polymer further comprises a hydroxyl group-containing monomer as a monomer component.
  • the content of the antistatic agent in the pressure-sensitive adhesive composition is 10 parts by weight or less with respect to 100 parts by weight of the base polymer.
  • the antistatic agent comprises a lithium bis (trifluoromethanesulfonyl) imide, a 1-ethyl-3-methylimidazolium bis (fluorosulfonyl) imide or a tributylmethylammonium bis (trifluoromethanesulfonyl) imide.
  • the pressure-sensitive adhesive composition further comprises a silane coupling agent.
  • the pressure-sensitive adhesive composition further comprises an antioxidant.
  • the adhesive force of the pressure-sensitive adhesive layer on the glass is 1.0 N / 25 mm or more.
  • the resin constituting the iodine permeation inhibitory layer is represented by the formula (1) of more than 50 parts by weight of the (meth) acrylic monomer and more than 0 parts by weight and less than 50 parts by weight.
  • X is a group consisting of a vinyl group, a (meth) acrylic group, a styryl group, a (meth) acrylamide group, a vinyl ether group, an epoxy group, an oxetane group, a hydroxyl group, an amino group, an aldehyde group, and a carboxyl group.
  • R 1 and R 2 each independently have a hydrogen atom, an aliphatic hydrocarbon group which may have a substituent, and a substituent.
  • R 1 and R 2 may be linked to each other to form a ring).
  • the polarizing plate has a total thickness of 60 ⁇ m or less.
  • the pressure-sensitive adhesive layer has a specific configuration, so that the polarizing plate is thin, has excellent durability, and has a poor appearance (typically, a polarizing plate). It is possible to realize a polarizing plate in which partial expansion of the protective layer and cracks of the functional layer contained in the above are suppressed, and cracks during irregular shape processing are suppressed.
  • FIG. 1 is a schematic cross-sectional view of the polarizing plate according to one embodiment of the present invention.
  • the polarizing plate 100 of the illustrated example includes a polarizing element 11, a protective layer 12 provided on one side of the polarizing element 11, an iodine permeation suppressing layer 40 provided on the other side of the polarizing element 11, and iodine permeation. It has a pressure-sensitive adhesive layer 30 provided on the opposite side of the polarizing element 11 of the suppression layer 40.
  • the iodine permeation suppressing layer 40 is a solidified product or a thermosetting product of a coating film of an organic solvent solution of a resin.
  • Another protective layer may be provided between the polarizing element 11 and the iodine permeation suppressing layer 40.
  • the protective layer 12 is provided only on one side of the polarizing element 11.
  • the iodine permeation suppressing layer 40 is directly provided on the polarizing element 11 on the other side of the polarizing element 11.
  • the term "directly provided on the polarizing element” means that it is directly formed on the surface of the polarizing element without interposing an adhesive layer (typically, an adhesive layer or an adhesive layer). do.
  • the pressure-sensitive adhesive layer 30 is provided as an outermost layer, and the polarizing plate can be attached to an image display device (substantially, an image display panel).
  • a release film is temporarily attached to the surface of the pressure-sensitive adhesive layer 30 until the polarizing plate is used. By temporarily attaching the release film, the pressure-sensitive adhesive layer can be protected and a roll of the polarizing plate can be formed.
  • the pressure-sensitive adhesive composition constituting the pressure-sensitive adhesive layer 30 contains a base polymer and an antistatic agent.
  • the base polymer has a glass transition temperature of ⁇ 50 ° C. or lower and a dielectric constant of 5.0 or higher at 100 kHz.
  • the surface resistance value of the pressure-sensitive adhesive layer is 1.0 ⁇ while the content of the antistatic agent in the pressure-sensitive adhesive composition is less than 10 parts by weight with respect to 100 parts by weight of the base polymer. It can be 10 9 ⁇ / ⁇ or less.
  • a polarizing plate that is thin, has excellent durability, suppresses poor appearance of the functional layer (for example, iodine permeation suppressing layer) contained in the polarizing plate, and suppresses cracks during irregular shape processing. be able to.
  • the functional layer for example, iodine permeation suppressing layer
  • the polarizing plate according to the embodiment of the present invention may further contain a functional layer other than the iodine permeation suppressing layer.
  • a functional layer is a retardation layer.
  • the optical characteristics for example, refractive index characteristics, in-plane retardation, Nz coefficient, photoelastic coefficient), thickness, arrangement position, and the like of the retardation layer can be appropriately set according to the purpose.
  • the polarizing plate according to the embodiment of the present invention may be single-wafer-shaped or long-shaped.
  • the term "long” means an elongated shape having a length sufficiently long with respect to the width, and for example, an elongated shape having a length of 10 times or more, preferably 20 times or more with respect to the width. include.
  • the long polarizing plate can be wound in a roll shape.
  • the polarizing plate according to the embodiment of the present invention may have a variant shape other than a rectangle.
  • the term "having a variant other than a rectangle” means that the planar view shape of the polarizing plate has a shape other than a rectangle.
  • the irregular shape is typically a deformed portion that has been deformed. Therefore, a "polarizing plate having a variant other than a rectangle" is used not only when the entire polarizing plate (that is, the outer edge defining the planar view shape of the film) is other than a rectangle, but also inward from the outer edge of the rectangular polarizing plate. It also includes the case where the deformed portion is formed in the separated portion.
  • the added antistatic agent acts as a plasticizer, which causes the polarizing plate to shrink in such a deformed portion in a high-temperature environment.
  • the deformed portion include a through hole, chamfering of a corner portion, and a machined portion that becomes a concave portion when viewed in a plan view.
  • Typical examples of the recess include a shape similar to a ship shape, a shape similar to a bathtub, a V-shaped notch, and a U-shaped notch.
  • Another example of the irregular shape (deformed portion) is a shape corresponding to the instrument panel of an automobile.
  • the shape includes a portion in which the outer edge is formed in an arc shape along the rotation direction of the meter needle and the outer edge is V-shaped (including a round shape) convex inward in the plane direction.
  • the irregular shape is not limited to the above example, and any appropriate shape according to the purpose can be adopted.
  • the through hole As the shape of the through hole, a circle, an ellipse, a triangle, a quadrangle, a pentagon, a hexagon, or an octagon can be adopted. Further, the through hole is provided at an arbitrary appropriate position according to the purpose.
  • the through hole may be provided at a substantially central portion of the longitudinal end portion of the rectangular polarizing plate, may be provided at a predetermined position at the longitudinal end portion, or may be provided at a corner portion of the polarizing plate.
  • Well it may be provided at the lateral end of the rectangular polarizing plate; it may be provided at the center of the polarizing plate having an irregular shape as a whole.
  • the deformed portion may be formed by combining the above-exemplified forms.
  • the through hole may be formed by combining a V-shaped notch and / or a U-shaped notch.
  • the total thickness of the polarizing plate is preferably 60 ⁇ m or less, more preferably 55 ⁇ m or less, further preferably 50 ⁇ m or less, and particularly preferably 40 ⁇ m or less.
  • the lower limit of the total thickness can be, for example, 28 ⁇ m.
  • the delay bubble is a bubble generated in the following situations.
  • a cover glass may be attached to the visible side of the polarizing plate.
  • the cover glass is attached by vacuum laminating via a predetermined adhesive.
  • the through hole may be filled with the adhesive.
  • bubbles may be generated in the subsequent heating durability test of the image display device.
  • Such bubbles can typically be generated by the contraction stress of the polarizing plate applied to the filled portion.
  • the delay bubble is not a fine one, but a large one that occupies a certain percentage or more of the plan view area of the through hole, and from the viewpoint of appearance and the camera performance of the camera unit provided at the position corresponding to the through hole. It is unacceptable. Therefore, suppressing the delay bubble has high industrial value.
  • the total thickness of the polarizing plate means the total thickness of the polarizing element, the protective layer, the iodine permeation suppressing layer, and the adhesive layer or the pressure-sensitive adhesive layer for laminating them (that is, the total thickness of the polarizing plate is defined as the total thickness of the polarizing plate. Does not include the thickness of the pressure-sensitive adhesive layer 30 and the release film that can be temporarily attached to its surface).
  • the splitter is typically composed of a resin film containing a dichroic substance (typically iodine).
  • a resin film any suitable resin film that can be used as a polarizing element can be adopted.
  • the resin film is typically a polyvinyl alcohol-based resin (hereinafter referred to as “PVA-based resin”) film.
  • the resin film may be a single-layer resin film or a laminated body having two or more layers.
  • the polarizing element composed of a single-layer resin film include those obtained by subjecting a PVA-based resin film to a dyeing treatment with iodine and a stretching treatment (typically, uniaxial stretching).
  • the dyeing with iodine is performed, for example, by immersing a PVA-based film in an aqueous iodine solution.
  • the draw ratio of the uniaxial stretching is preferably 3 to 7 times.
  • the stretching may be performed after the dyeing treatment or may be performed while dyeing. Further, it may be dyed after being stretched.
  • the PVA-based resin film is subjected to a swelling treatment, a crosslinking treatment, a cleaning treatment, a drying treatment and the like.
  • the polarizing element obtained by using the laminate include a laminate of a resin base material and a PVA-based resin layer (PVA-based resin film) laminated on the resin base material, or a resin base material and the resin.
  • Examples thereof include a polarizing element obtained by using a laminate with a PVA-based resin layer coated and formed on a base material.
  • the ligand obtained by using the laminate of the resin base material and the PVA-based resin layer coated and formed on the resin base material is, for example, a resin base material obtained by applying a PVA-based resin solution to the resin base material and drying the resin base material.
  • a PVA-based resin layer is formed on top of the PVA-based resin layer to obtain a laminate of a resin base material and a PVA-based resin layer; obtain.
  • a polyvinyl alcohol-based resin layer containing a halide and a polyvinyl alcohol-based resin is preferably formed on one side of the resin base material.
  • Stretching typically involves immersing the laminate in an aqueous boric acid solution for stretching. Further, stretching may further comprise, if necessary, stretching the laminate in the air at a high temperature (eg, 95 ° C. or higher) prior to stretching in boric acid aqueous solution.
  • the laminate is subjected to a drying shrinkage treatment in which the laminate is shrunk by 2% or more in the width direction by heating while being conveyed in the longitudinal direction.
  • the production method of the present embodiment includes subjecting the laminate to an aerial auxiliary stretching treatment, a dyeing treatment, an underwater stretching treatment, and a drying shrinkage treatment in this order.
  • the disorder of the orientation of the polyvinyl alcohol molecule and the decrease in the orientation can be suppressed as compared with the case where the PVA-based resin layer does not contain a halide.
  • This makes it possible to improve the optical characteristics of the polarizing element obtained through a treatment step of immersing the laminate in a liquid, such as a dyeing treatment and a stretching treatment in water. Further, the optical characteristics can be improved by shrinking the laminated body in the width direction by the drying shrinkage treatment.
  • the obtained resin base material / polarizing element laminate may be used as it is (that is, the resin base material may be used as a protective layer for the polarizing element), and the resin base material is peeled off from the resin base material / polarizing element laminate. Then, an arbitrary appropriate protective layer according to the purpose may be laminated on the peeled surface and used. Details of the method for producing such a polarizing element are described in, for example, Japanese Patent Application Laid-Open No. 2012-73580 and Japanese Patent No. 6470455. The entire description of these publications is incorporated herein by reference.
  • the thickness of the polarizing element is preferably 1 ⁇ m to 10 ⁇ m, more preferably 1 ⁇ m to 8 ⁇ m, and further preferably 2 ⁇ m to 5 ⁇ m. If the thickness of the polarizing element is within such a range, it can greatly contribute to the thinning of the polarizing plate.
  • the splitter preferably exhibits absorption dichroism at any wavelength of 380 nm to 780 nm.
  • the simple substance transmittance of the substituent is preferably 41.5% to 46.0%, more preferably 43.0% to 46.0%, still more preferably 44.5% to 46.0%. be.
  • the degree of polarization of the polarizing element is preferably 97.0% or more, more preferably 99.0% or more, and further preferably 99.9% or more.
  • the protective layer 12 (and another protective layer, if any) is formed of any suitable film that can be used as a protective layer for the stator.
  • suitable film include cellulosic resins such as triacetylcellulose (TAC), polyesters, polyvinyl alcohols, polycarbonates, polyamides, polyimides, polyethersulfones, and polysulfones.
  • TAC triacetylcellulose
  • polyesters polyvinyl alcohols
  • polycarbonates polyamides
  • polyimides polyethersulfones
  • polysulfones polyester-based, polycarbonate-based, polyolefin-based, (meth) acrylic-based, acetate-based transparent resins and the like.
  • thermosetting resins such as (meth) acrylic, urethane, (meth) acrylic urethane, epoxy, and silicone, or ultraviolet curable resins can also be mentioned.
  • glassy polymers such as siloxane-based polymers can also be mentioned.
  • the polymer film described in JP-A-2001-343529 (WO01 / 37007) can also be used.
  • a resin composition containing a thermoplastic resin having a substituted or unsubstituted imide group in the side chain and a thermoplastic resin having a substituted or unsubstituted phenyl group and a nitrile group in the side chain.
  • the polymer film can be, for example, an extruded product of the above resin composition.
  • the protective layer 12 is typically arranged on the visible side thereof.
  • the protective layer 12 may be subjected to surface treatment such as hard coat treatment, antireflection treatment, sticking prevention treatment, and antiglare treatment, if necessary.
  • the thickness of the protective layer is preferably 10 ⁇ m to 50 ⁇ m, more preferably 15 ⁇ m to 35 ⁇ m.
  • the thickness of the outer protective layer is the thickness including the thickness of the surface treatment layer.
  • the iodine permeation suppressing layer by providing the iodine permeation suppressing layer, it is possible to suppress an increase in the surface resistance value of the pressure-sensitive adhesive layer in a high temperature environment and / or a high temperature / high humidity environment. Moreover, it is possible to suppress cracks during irregular shape processing.
  • the iodine permeation suppressing layer is a solidified product or a thermosetting product of a coating film of an organic solvent solution of a resin. With such a configuration, the thickness can be made very thin (for example, 10 ⁇ m or less).
  • the thickness of the iodine permeation inhibitory layer is preferably 0.05 ⁇ m to 10 ⁇ m, more preferably 0.08 ⁇ m to 5 ⁇ m, still more preferably 0.1 ⁇ m to 1 ⁇ m, and particularly preferably 0.2 ⁇ m to 0.7 ⁇ m. Is. Further, with such a configuration, the iodine permeation inhibitory layer can be formed directly on the polarizing element (that is, without the intervention of the adhesive layer or the pressure-sensitive adhesive layer).
  • the polarizing element and the iodine permeation suppressing layer are very thin, and the adhesive layer or the pressure-sensitive adhesive layer for laminating the iodine permeation suppressing layer can be omitted.
  • the total thickness of the polarizing plate can be made extremely thin.
  • such an iodine permeation suppressing layer has an advantage that it is excellent in humidification durability because it has a smaller hygroscopicity and moisture permeability than a solidified water-based coating film such as an aqueous solution or an aqueous dispersion. As a result, it is possible to realize a polarizing plate having excellent durability, which can maintain optical characteristics even in a high temperature and high humidity environment.
  • an iodine permeation suppressing layer can suppress an adverse effect on a polarizing plate (polarizer) due to ultraviolet irradiation as compared with, for example, a cured product of an ultraviolet curable resin.
  • the iodine permeation inhibitory layer is preferably a solidified coating film of an organic solvent solution of a resin.
  • the solidified product has a smaller shrinkage during film molding than the cured product, and since it does not contain residual monomers, deterioration of the film itself is suppressed, and the polarizing plate (polarizer) caused by the residual monomers is suppressed. The adverse effect can be suppressed.
  • the glass transition temperature (Tg) of the resin constituting the iodine permeation suppressing layer is typically 85 ° C. or higher, preferably 90 ° C. or higher, more preferably 100 ° C. or higher, still more preferably 110 ° C. or higher. It is particularly preferably 120 ° C. or higher.
  • the upper limit of Tg can be, for example, 200 ° C.
  • the weight average molecular weight Mw of the resin is typically 25,000 or more, preferably 30,000 or more, more preferably 35,000 or more, and further preferably 40,000 or more.
  • the upper limit of Mw can be, for example, 150,000.
  • the iodine permeation inhibitory layer is very effective due to the synergistic effect with the effect of forming the solidified or thermosetting film of the coating film of the organic solvent solution of the resin.
  • the transfer of iodine in the polarizing element to the image display panel can be significantly suppressed.
  • corrosion of the metal member of the image display device can be remarkably suppressed.
  • thermoplastic resin any suitable thermoplastic resin or thermosetting resin can be used as the resin constituting the iodine permeation suppressing layer.
  • a thermoplastic resin is preferable.
  • the thermoplastic resin include acrylic resins and epoxy resins. Acrylic resin and epoxy resin may be used in combination.
  • typical examples of the acrylic resin and the epoxy resin that can be used for the iodine permeation suppressing layer will be described.
  • Acrylic resins typically contain a repeating unit derived from a (meth) acrylic acid ester-based monomer having a linear or branched structure as a main component.
  • (meth) acrylic refers to acrylic and / or methacrylic.
  • the acrylic resin may contain repeating units derived from any suitable copolymerized monomer depending on the intended purpose. Examples of the copolymerized monomer (copolymerized monomer) include a carboxyl group-containing monomer, a hydroxyl group-containing monomer, an amide group-containing monomer, an aromatic ring-containing (meth) acrylate, and a heterocyclic ring-containing vinyl-based monomer.
  • the acrylic resin is a (meth) acrylic monomer having more than 50 parts by weight and a monomer represented by the formula (1) having more than 0 parts by weight and less than 50 parts by weight (hereinafter,). , May be referred to as a copolymerized monomer) and a copolymer obtained by polymerizing a monomer mixture (hereinafter, may be referred to as a boron-containing acrylic resin).
  • X is a group consisting of a vinyl group, a (meth) acrylic group, a styryl group, a (meth) acrylamide group, a vinyl ether group, an epoxy group, an oxetane group, a hydroxyl group, an amino group, an aldehyde group, and a carboxyl group.
  • R 1 and R 2 each independently have a hydrogen atom, an aliphatic hydrocarbon group which may have a substituent, and a substituent.
  • R 1 and R 2 may be linked to each other to form a ring).
  • the boron-containing acrylic resin typically has a repeating unit represented by the following formula.
  • the boron-containing acrylic resin By polymerizing a monomer mixture containing the copolymerized monomer represented by the formula (1) and the (meth) acrylic monomer, the boron-containing acrylic resin has a substituent containing boron in the side chain (for example,). It has a repeating unit of k in the following formula).
  • the boron-containing substituent may be continuously (that is, in a block shape) contained in the boron-containing acrylic resin, or may be randomly contained. (In the equation, R 6 represents an arbitrary functional group, and j and k represent integers of 1 or more).
  • Any suitable (meth) acrylic monomer can be used as the (meth) acrylic monomer.
  • a (meth) acrylic acid ester-based monomer having a linear or branched structure and a (meth) acrylic acid ester-based monomer having a cyclic structure can be mentioned.
  • Examples of the (meth) acrylic acid ester-based monomer having a linear or branched structure include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, and (meth) acrylic acid. Examples thereof include isopropyl, n-butyl (meth) acrylate, isobutyl (meth) acrylate, t-butyl (meth) acrylate, methyl 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate and the like. .. Preferably, methyl (meth) acrylate is used.
  • the (meth) acrylic acid ester-based monomer only one kind may be used, or two or more kinds may be used in combination.
  • Examples of the (meth) acrylate-based monomer having a cyclic structure include cyclohexyl (meth) acrylate, benzyl (meth) acrylate, isobornyl (meth) acrylate, 1-adamantyl (meth) acrylate, and ( Dicyclopentenyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate, dicyclopentanyl (meth) acrylate, biphenyl (meth) acrylate, o-biphenyloxyethyl (meth) acrylate, o-biphenyloxyethoxy Ethyl (meth) acrylate, m-biphenyloxyethyl acrylate, p-biphenyloxyethyl (meth) acrylate, o-biphenyloxy-2-hydroxypropyl (meth) acrylate, p-biphenyloxy-2-
  • 1-adamantyl (meth) acrylate and dicyclopentanyl (meth) acrylate are used.
  • these monomers a polymer having a high glass transition temperature can be obtained. Only one kind of these monomers may be used, or two or more kinds thereof may be used in combination.
  • a silsesquioxane compound having a (meth) acryloyl group may be used instead of the above (meth) acrylic acid ester-based monomer.
  • a silsesquioxane compound having a (meth) acryloyl group By using the silsesquioxane compound, an acrylic polymer having a high glass transition temperature can be obtained.
  • the silsesquioxane compound is known to have various skeleton structures such as a cage-type structure, a ladder-type structure, and a random structure.
  • the silsesquioxane compound may have only one of these structures, or may have two or more of these structures. Only one kind of silsesquioxane compound may be used, or two or more kinds may be used in combination.
  • silsesquioxane compound containing a (meth) acryloyl group for example, MAC grade and AC grade of Toagosei Co., Ltd. SQ series can be used.
  • the MAC grade is a silsesquioxane compound containing a methacryloyl group, and specific examples thereof include MAC-SQ TM-100, MAC-SQ SI-20, and MAC-SQ HDM.
  • the AC grade is a silsesquioxane compound containing an acryloyl group, and specific examples thereof include AC-SQ TA-100 and AC-SQ SI-20.
  • the (meth) acrylic monomer is used in an amount of more than 50 parts by weight with respect to 100 parts by weight of the monomer mixture.
  • ⁇ Copolymerization monomer> As the copolymerization monomer, a monomer represented by the above formula (1) is used. By using such a copolymerized monomer, a substituent containing boron is introduced into the side chain of the obtained polymer. Only one type of copolymerization monomer may be used, or two or more types may be used in combination.
  • the aliphatic hydrocarbon group in the above formula (1) may have a linear or branched alkyl group having 1 to 20 carbon atoms which may have a substituent, and may have a substituent and may have 3 to 3 carbon atoms.
  • Examples thereof include a cyclic alkyl group of 20 and an alkenyl group having 2 to 20 carbon atoms.
  • Examples of the aryl group include a phenyl group having 6 to 20 carbon atoms which may have a substituent, a naphthyl group having 10 to 20 carbon atoms which may have a substituent, and the like.
  • the heterocyclic group include a 5-membered ring group or a 6-membered ring group containing at least one heteroatom which may have a substituent.
  • R 1 and R 2 may be connected to each other to form a ring.
  • R 1 and R 2 are preferably a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms, and more preferably a hydrogen atom.
  • the reactive group contained in the functional group represented by X is a vinyl group, a (meth) acrylic group, a styryl group, a (meth) acrylamide group, a vinyl ether group, an epoxy group, an oxetane group, a hydroxyl group, an amino group, an aldehyde group, and the like. And at least one selected from the group consisting of carboxyl groups.
  • the reactive group is a (meth) acrylic group and / or a (meth) acrylamide group.
  • the functional group represented by X is preferably a functional group represented by ZZ.
  • Z is selected from the group consisting of a vinyl group, a (meth) acrylic group, a styryl group, a (meth) acrylamide group, a vinyl ether group, an epoxy group, an oxetane group, a hydroxyl group, an amino group, an aldehyde group, and a carboxyl group.
  • the following compounds can be used as the copolymerization monomer.
  • the copolymerized monomer is used in an amount of more than 0 parts by weight and less than 50 parts by weight with respect to 100 parts by weight of the monomer mixture. It is preferably 0.01 parts by weight or more and less than 50 parts by weight, more preferably 0.05 parts by weight to 20 parts by weight, still more preferably 0.1 parts by weight to 10 parts by weight, and particularly preferably 0. It is 5 parts by weight to 5 parts by weight.
  • the acrylic resin has a repeating unit including a ring structure selected from a lactone ring unit, a glutaric anhydride unit, a glutarimide unit, a maleic anhydride unit and a maleimide (N-substituted maleimide) unit. You may be doing it. Only one type of the repeating unit including the ring structure may be contained in the repeating unit of the acrylic resin, or two or more types may be contained.
  • the content ratio of the repeating unit including the ring structure in the acrylic resin is preferably 1 mol% to 50 mol%, more preferably 10 mol% to 40 mol%, and further preferably 20 mol% to 30 mol%.
  • the acrylic resin contains the above-mentioned (meth) acrylic monomer-derived repeating unit as the main repeating unit.
  • an epoxy resin having an aromatic ring is preferably used as the epoxy resin.
  • the adhesion to the polarizing element can be improved when the iodine permeation suppressing layer is arranged adjacent to the polarizing element.
  • the anchoring force of the pressure-sensitive adhesive layer can be improved.
  • the epoxy resin having an aromatic ring include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin and other bisphenol type epoxy resins; phenol novolac epoxy resin, cresol novolak epoxy resin, hydroxybenzaldehyde phenol novolac.
  • Novolak type epoxy resin such as epoxy resin; polyfunctional epoxy resin such as tetrahydroxyphenylmethane glycidyl ether, tetrahydroxybenzophenone glycidyl ether, epoxidized polyvinylphenol, naphthol type epoxy resin, naphthalene type epoxy resin, biphenyl type Epoxy resin and the like can be mentioned.
  • a bisphenol A type epoxy resin, a biphenyl type epoxy resin, and a bisphenol F type epoxy resin are used. Only one type of epoxy resin may be used, or two or more types may be used in combination.
  • the iodine permeation inhibitory layer can be formed by applying an organic solvent solution of a resin as described above to form a coating film, and solidifying or thermosetting the coating film. Any suitable method and condition may be adopted as the coating method, solidification or curing conditions.
  • the iodine permeation suppressing layer may contain any appropriate additive depending on the purpose.
  • the type, number, combination, amount of additive, etc. of the additive can be appropriately set according to the purpose.
  • the surface resistance value of the adhesive layer 30 is 1.0 ⁇ 10 9 ⁇ / ⁇ or less, preferably 5.0 ⁇ 10 8 ⁇ / ⁇ or less, more preferably 1.0 as described above. It is ⁇ 10 8 ⁇ / ⁇ or less, more preferably 7.0 ⁇ 10 7 ⁇ / ⁇ or less, and particularly preferably 1.0 ⁇ 10 7 ⁇ / ⁇ or less.
  • the lower limit of the surface resistance value may be, for example, 5.0 ⁇ 105 ⁇ / ⁇ or less. As described above, according to the embodiment of the present invention, it is possible to realize a pressure-sensitive adhesive layer having a small surface resistance value even though the content of the antistatic agent is small.
  • the adhesive strength of the pressure-sensitive adhesive layer to the glass is preferably 1.0 N / 25 mm or more, more preferably 1.5 N / 25 mm or more, and further preferably 2.0 N / 25 mm or more. When the adhesive strength is within such a range, the adhesiveness to the image display panel is excellent and the reworkability is excellent.
  • the upper limit of the adhesive force may be, for example, 6.0 N / 25 mm.
  • the thickness of the pressure-sensitive adhesive layer is preferably 2 ⁇ m to 55 ⁇ m, more preferably 2 ⁇ m to 30 ⁇ m, further preferably 5 ⁇ m to 25 ⁇ m, and particularly preferably 10 ⁇ m to 20 ⁇ m.
  • the pressure-sensitive adhesive composition constituting the pressure-sensitive adhesive layer contains a base polymer and an antistatic agent as described above.
  • the glass transition temperature (Tg) of the base polymer is ⁇ 50 ° C. or lower, preferably ⁇ 52 ° C. or lower, and more preferably ⁇ 55 ° C. or lower, as described above.
  • the lower limit of Tg of the base polymer can be, for example, ⁇ 75 ° C.
  • the dielectric constant of the base polymer at 100 kHz is 5.0 or more, preferably 5.5 or more, more preferably 6.0 or more, still more preferably 6.5 or more, and particularly preferably 6.5 or more, as described above. Is 7.0 or higher.
  • the upper limit of the dielectric constant of the base polymer can be, for example, 10.0.
  • the Tg of the base polymer can be calculated as the Tg of the polymer converted from the Tg of each monomer component using the polymerization ratio.
  • the base polymer examples include (meth) acrylic polymers, urethane polymers, silicone polymers, and rubber polymers.
  • a (meth) acrylic polymer is preferable.
  • the (meth) acrylic polymer as the base polymer may be referred to as a (meth) acrylic base polymer.
  • the (meth) acrylic base polymer preferably contains an alkoxy group-containing monomer as a monomer component.
  • the alkoxy group-containing monomer include a monomer represented by the following formula:
  • R 1 is an alkyl group, for example a methyl group or an ethyl group
  • n is an integer of 1 to 15.
  • the alkoxy group is preferably linear. If it is a linear alkoxy group, the Tg of the obtained (meth) acrylic base polymer can be in the above-mentioned desired range, and the dielectric constant of the base polymer can be in the above-mentioned desired range.
  • the base polymer containing the monomer having a ring structure may have an excessively high Tg and / or an excessively small dielectric constant.
  • Specific examples of the alkoxy group-containing monomer include methoxyethyl (meth) acrylate, ethoxyethoxyethyl (meth) acrylate, methoxytriethylene glycol (meth) acrylate, and methoxypolyethylene glycol (meth) acrylate. These may be used alone or in combination of two or more.
  • the content of the alkoxy group-containing monomer in the base polymer is preferably 30 parts by weight to 99 parts by weight with respect to 100 parts by weight of all the monomer components.
  • the content of the alkoxy group-containing monomer may be, for example, 30 parts by weight to 60 parts by weight, for example, 30 parts by weight to 50 parts by weight, and for example, 50 parts by weight to 99 parts by weight. It may be 60 parts by weight to 99 parts by weight, for example.
  • the (meth) acrylic base polymer preferably contains a hydroxyl group-containing monomer as a monomer component.
  • the hydroxyl group-containing monomer include 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, and 8-hydroxyoctyl ( Examples thereof include meth) acrylate, 10-hydroxydecyl (meth) acrylate, 12-hydroxylauryl (meth) acrylate, and (4-hydroxymethylcyclohexyl) -methyl acrylate.
  • the content of the hydroxyl group-containing monomer in the base polymer is preferably 1 part by weight to 5 parts by weight, and more preferably 1 part by weight to 3 parts by weight with respect to 100 parts by weight of all the monomer components.
  • the (meth) acrylic base polymer may contain an alkyl (meth) acrylate as a monomer component.
  • alkyl (meth) acrylate include linear or branched alkyl groups having 1 to 18 carbon atoms.
  • the alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, an amyl group, a hexyl group, a cyclohexyl group, a heptyl group, a 2-ethylhexyl group, an isooctyl group, a nonyl group and a decyl group.
  • Alkyl (meth) acrylates can be used alone or in combination.
  • the average number of carbon atoms of the alkyl group is preferably 3 to 8, and more preferably 3 to 6.
  • the content of the alkyl (meth) acrylate in the base polymer can be arbitrarily set as the balance of the monomer components other than the alkyl (meth) acrylate.
  • the (meth) acrylic base polymer may further contain other monomer components (copolymerization monomer), if necessary.
  • copolymerized monomers include aromatic hydrocarbon group-containing monomers (eg, phenyl (meth) acrylate, phenoxyethyl (meth) acrylate, benzyl (meth) acrylate), and carboxyl group-containing monomers (eg, (meth) acrylic).
  • the weight average molecular weight Mw of the (meth) acrylic base polymer is preferably 1 million to 3 million, more preferably 2 million to 3 million, and further preferably 2 million to 2.8 million. If the weight average molecular weight Mw is less than 1 million, crack suppression may be insufficient. If the weight average molecular weight Mw exceeds 3 million, an increase in viscosity and / or gelation during polymer polymerization may occur.
  • Typical examples of the antistatic agent include inorganic cation salts and organic cation salts.
  • the inorganic cation salt is an inorganic cation-anion salt.
  • Typical examples of the cation constituting the cation portion of the inorganic cation salt include alkali metal ions. Specific examples include lithium ion, sodium ion, and potassium ion. Lithium ion is preferred. Therefore, the preferred inorganic cation salt is a lithium salt.
  • Examples of the anions constituting the anion portion of the inorganic cation salt include Cl- , Br- , I- , AlCl 4- , Al 2 Cl 7- , BF 4- , PF 6- , ClO 4- , NO 3- , and so on.
  • fluorine-containing imide anion examples include an imide anion having a perfluoroalkyl group. Specific examples include the above (CF 3 SO 2 ) (CF 3 CO) N ⁇ and the general formulas (1), (2) and (4). (1): (C n F 2n + 1 SO 2 ) 2 N- ( n is an integer from 1 to 10), (2): CF 2 (C m F 2m SO 2 ) 2 N- ( m is an integer of 1 to 10), (4): (C p F 2p + 1 SO 2 ) N- ( C q F 2q + 1 SO 2 ), (p, q are integers of 1 to 10), Examples thereof include anions represented by.
  • a (perfluoroalkylsulfonyl) imide represented by the general formula (1) such as (CF 3 SO 2 ) 2 N ⁇ , (C 2 F 5 SO 2 ) 2 N ⁇ , and more preferably (CF 3 ).
  • SO 2 ) A bis (trifluoromethanesulfonyl) imide represented by 2N ⁇ . Therefore, a preferred inorganic cationic salt that can be used in embodiments of the present invention is lithium bis (trifluoromethanesulfonyl) imide.
  • the organic cation salt is an organic cation-anion salt.
  • Typical examples of the cation constituting the cation portion of the organic cation salt include organic onium in which onium ions are formed by substitution with an organic group.
  • Examples of onium in organic onium include nitrogen-containing onium, sulfur-containing onium, and phosphorus-containing onium. Nitrogen-containing onium and sulfur-containing onium are preferable.
  • nitrogen-containing oniums examples include ammonium cations, piperidinium cations, pyrrolidinium cations, pyridinium cations, pyrrolin skeleton cations, pyrrole skeleton cations, imidazolium cations, tetrahydropyrimidinium cations, and dihydropyrimidinium cations. Examples thereof include pyrazolium cations and pyrazolinium cations.
  • sulfur-containing onium examples include a sulfonium cation.
  • Examples of the phosphonium-containing cation include a phosphonium cation.
  • organic group in organic onium examples include an alkyl group, an alkoxyl group, and an alkenyl group.
  • Specific examples of preferred organic onium include tetraalkylammonium cations (eg, tributylmethylammonium cations), alkylpiperidinium cations, and alkylpyrrolidinium cations.
  • the anions constituting the anion portion of the organic cation salt are as described with respect to the anions constituting the anion portion of the inorganic cation.
  • Preferred organic cation salts that can be used in the embodiments of the present invention are 1-ethyl-3-methylimidazolium bis (fluorosulfonyl) imide, trimethylbutylammonium bis (trifluoromethanesulfonyl) imide.
  • the inorganic cation salt and the organic cation salt may be used in combination.
  • the content of the antistatic agent in the pressure-sensitive adhesive composition is less than 10 parts by weight, preferably 7 parts by weight or less, and more preferably 5 parts by weight or less with respect to 100 parts by weight of the base polymer. , More preferably 3 parts by weight or less. According to the embodiment of the present invention, it is possible to realize a pressure-sensitive adhesive layer having a small surface resistance value even though the content of the antistatic agent is so small.
  • the lower limit of the content of the antistatic agent may be, for example, 0.5 parts by weight. If the content of the antistatic agent is too small, the desired surface resistance value may not be obtained.
  • the pressure-sensitive adhesive composition typically contains a silane coupling agent, a cross-linking agent, and / or an antioxidant.
  • Typical examples of the silane coupling agent include a functional group-containing silane coupling agent.
  • the functional group include an epoxy group, a mercapto group, an amino group, an isocyanate group, an isocyanurate group, a vinyl group, a styryl group, an acetoacetyl group, a ureido group, a thiourea group, a (meth) acrylic group, a heterocyclic group and an acid.
  • Anhydrous groups and combinations thereof can be mentioned.
  • the functional group-containing silane coupling agent can be used alone or in combination.
  • cross-linking agent examples include isocyanate-based cross-linking agents and peroxide-based cross-linking agents.
  • Crosslinkers can also be used alone or in combination.
  • the following advantages can be obtained by containing a silane coupling agent. Since the pressure-sensitive adhesive composition using the base polymer containing the alkoxy group-containing monomer has high polarity, the adhesiveness to the non-polar adherend may be insufficient. By containing the silane coupling agent, sufficient adhesive force can be obtained for various adherends, and peeling can be suppressed.
  • the following advantages can be obtained by containing an antioxidant.
  • the base polymer containing the alkoxy group-containing monomer has a low Tg and becomes soft. By containing the antioxidant, it is possible to suppress shrinkage due to oxidative deterioration from the end face of the polarizing plate and the end face of the pressure-sensitive adhesive layer.
  • the pressure-sensitive adhesive composition may contain an additive.
  • additives include powders such as colorants and pigments, dyes, surfactants, plasticizers, tackifiers, surface lubricants, leveling agents, softeners, antioxidants, light stabilizers, and ultraviolet rays. Absorbents, polymerization inhibitors, inorganic or organic fillers, metal powders, particulates, foils and the like. Further, a redox system to which a reducing agent is added may be adopted within a controllable range. The type, number, combination, content, etc. of additives can be appropriately set according to the purpose.
  • an embodiment of the present invention includes an image display device using such a polarizing plate.
  • the image display device include a liquid crystal display device and an electroluminescence (EL) display device (for example, an organic EL display device and an inorganic EL display device).
  • the image display device is a narrow frame (preferably bezelless) image display device or an in-cell image display device. In such an image display device, the effect of the embodiment of the present invention is remarkable.
  • Thickness The thickness of 10 ⁇ m or less was measured using an interference film thickness meter (manufactured by Otsuka Electronics Co., Ltd., product name “MCPD-3000”). Thicknesses exceeding 10 ⁇ m were measured using a digital micrometer (manufactured by Anritsu, product name “KC-351C”).
  • Resistance value increase rate (%) ⁇ (resistance value after reliability test-initial resistance value) / initial resistance value ⁇ x 100 Furthermore, it was evaluated according to the following criteria. ⁇ : Resistance value increase rate is less than 50% ⁇ : Resistance value increase rate is 50% or more and less than 1000% ⁇ : Resistance value increase rate is 1000% or more
  • test pieces 50 mm ⁇ 50 mm having two opposite sides in the absorption axis direction and the directions orthogonal to the absorption axis direction were cut out.
  • the test piece was attached to a glass plate via an adhesive layer, and the test piece was left in an oven at 65 ° C. and 90% RH for 120 hours to be humidified.
  • the state of color loss at the end of the later polarizing plate (substantially, the polarizing element) was examined with a microscope. Specifically, the magnitude of color loss (color loss amount: ⁇ m) from the end of the polarizing element was measured.
  • a MX61L manufactured by Olympus was used as a microscope, and the amount of color loss at the corners was measured from an image taken at a magnification of 10 times.
  • Table 1 shows the Tg and the dielectric constant of the (meth) acrylic base polymer A1.
  • the dielectric constant was measured by a conventional method. For Tg, a value converted from Tg of each monomer using the polymerization ratio was calculated.
  • thermoplastic resin base material an amorphous isophthal copolymer polyethylene terephthalate film (thickness: 100 ⁇ m) having a long shape, a water absorption of 0.75%, and a Tg of about 75 ° C. was used. One side of the resin substrate was corona-treated.
  • PVA-based resin 100 weight of PVA-based resin in which polyvinyl alcohol (polymerization degree 4200, saponification degree 99.2 mol%) and acetacetyl-modified PVA (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "Gosefimer Z410" are mixed at a ratio of 9: 1.
  • a PVA aqueous solution (coating solution) was prepared by dissolving 13 parts by weight of potassium iodide in water. The PVA aqueous solution was applied to the corona-treated surface of the resin base material and dried at 60 ° C. to form a PVA-based resin layer having a thickness of 13 ⁇ m, and a laminate was prepared.
  • the obtained laminate was stretched 2.4 times in the longitudinal direction (longitudinal direction) between rolls having different peripheral speeds in an oven at 130 ° C. (aerial auxiliary stretching treatment).
  • the laminate was immersed in an insolubilizing bath at a liquid temperature of 40 ° C. (a boric acid aqueous solution obtained by blending 4 parts by weight of boric acid with 100 parts by weight of water) for 30 seconds (insolubilization treatment).
  • a dyeing bath having a liquid temperature of 30 ° C. an aqueous iodine solution obtained by mixing iodine and potassium iodide in a weight ratio of 1: 7 with respect to 100 parts by weight of water
  • the uniaxial stretching was performed so that the total stretching ratio was 5.5 times (underwater stretching treatment).
  • the laminate was immersed in a washing bath having a liquid temperature of 20 ° C. (an aqueous solution obtained by blending 4 parts by weight of potassium iodide with 100 parts by weight of water) (cleaning treatment).
  • cleaning treatment an aqueous solution obtained by blending 4 parts by weight of potassium iodide with 100 parts by weight of water
  • cleaning treatment a liquid temperature of 20 ° C.
  • cleaning treatment an aqueous solution obtained by blending 4 parts by weight of potassium iodide with 100 parts by weight of water
  • dry shrinkage treatment dry shrinkage treatment
  • the shrinkage rate in the width direction of the laminated body by the dry shrinkage treatment was 5.2%. In this way, a polarizing element having a thickness of 5 ⁇ m was formed on the resin substrate.
  • HC-TAC film as a protective layer was attached to the surface of the polarizing element obtained above (the surface opposite to the resin substrate) via an ultraviolet curable adhesive. Specifically, the curable adhesive was coated so as to have a total thickness of 1.0 ⁇ m, and bonded using a roll machine. Then, UV light was irradiated from the protective layer side to cure the adhesive.
  • the HC-TAC film is a film in which a hard coat (HC) layer (thickness 7 ⁇ m) is formed on a triacetyl cellulose (TAC) film (thickness 25 ⁇ m), and the TAC film is attached so as to be on the splitter side. I matched it.
  • the resin base material was peeled off, and an iodine permeation suppressing layer (thickness 0.3 ⁇ m) was formed on the peeled surface.
  • the iodine permeation inhibitory layer was formed as follows. Methyl methacrylate (MMA, manufactured by Wako Pure Chemical Industries, Ltd., trade name "methyl methacrylate monomer”) 97.0 parts, 3.0 parts of copolymerized monomer represented by the above general formula (1e), polymerization started. 0.2 part of the agent (manufactured by Wako Pure Chemical Industries, Ltd., trade name "2,2'-azobis (isobutyronitrile)”) was dissolved in 200 parts of toluene.
  • MMA Methyl methacrylate
  • methyl methacrylate monomer 97.0 parts, 3.0 parts of copolymerized monomer represented by the above general formula (1e)
  • 0.2 part of the agent manufactured by Wako Pure Chemical Industries, Ltd., trade name "2,2'-azobis
  • a polymerization reaction was carried out for 5.5 hours while heating at 70 ° C. under a nitrogen atmosphere to obtain a boron-containing acrylic resin solution (solid content concentration: 33%).
  • the Tg of the obtained boron-containing acrylic polymer was 110 ° C., and the Mw was 80,000. 20 parts of this boron-containing acrylic polymer was dissolved in 80 parts of methyl ethyl ketone to obtain a resin solution (20%).
  • This resin solution is applied to the peeled surface of the resin base material using a wire bar, the coating film is dried at 60 ° C. for 5 minutes, and iodine permeation configured as a solidified coating film of the organic solvent solution of the resin. An inhibitory layer was formed. In this way, a polarizing plate P1 having a structure of a protective layer (HC layer / TAC film) / adhesive layer / polarizing element / iodine permeation suppressing layer was obtained.
  • a polarizing element having a thickness of 12 ⁇ m An HC-TAC film was bonded to one side of the polarizing element in the same manner as in Production Example 15. Further, an acrylic film having a lactone ring structure (thickness 20 ⁇ m) was bonded to the other surface of the polarizing element via an ultraviolet curable adhesive (thickness 1.0 ⁇ m). Further, an iodine permeation suppressing layer (thickness 0.3 ⁇ m) was formed on the surface of the acrylic film in the same manner as in Production Example 16.
  • a polarizing plate P2 having a structure of a protective layer (HC layer / TAC film) / adhesive layer / polarizing element / adhesive layer / protective layer (acrylic film) / iodine permeation suppressing layer was obtained.
  • a polarizing plate P3 was obtained in the same manner as in Production Example 17 except that a cyclic olefin resin (COP) film (thickness 13 ⁇ m) was used instead of the acrylic film.
  • COP cyclic olefin resin
  • Example 1 Preparation of adhesive composition 3 parts of antistatic agent (trade name: LiTFSi30EA, manufactured by Mitsubishi Materials Co., Ltd.) with respect to 100 parts of the solid content of the solution of the (meth) acrylic base polymer A1 obtained in Production Example 1.
  • antistatic agent trade name: LiTFSi30EA, manufactured by Mitsubishi Materials Co., Ltd.
  • Benzoyl peroxide as a cross-linking agent (trade name: Niper BMT 40SV, manufactured by Nippon Oil & Fats Co., Ltd.) 0.3 parts, isocyanate-based cross-linking agent (trade name: Takenate D110N, manufactured by Mitsui Chemicals Co., Ltd.) 0.2 parts , Rework improver (trade name: Cyril SAT10, manufactured by Kaneka) 0.03 part, antioxidant (trade name: Crosslink 1010, hindered phenol type, manufactured by BASF Japan) 0.3 part, and silane coupling
  • a solution of an acrylic pressure-sensitive adhesive composition was prepared by blending 0.2 parts of an agent (trade name: A-100, manufactured by Soken Kagaku Co., Ltd., an acetoacetyl group-containing silane coupling agent).
  • Example 2 to 24 and Comparative Examples 1 to 12 A polarizing plate with a pressure-sensitive adhesive layer was prepared by combining the polarizing plate and the pressure-sensitive adhesive layer shown in Table 1. The results are shown in Table 1.
  • the abbreviations of antistatic agents in Table 1 are as follows.
  • LiTFSI Lithium bis (trifluoromethanesulfonyl) imide
  • EMI-FSI 1-ethyl-3-methylimidazolium bis (fluorosulfonyl) imide
  • TBMA-TFSI tributylmethylammonyl bis (trifluoromethanesulfonyl) imide
  • the polarizing plate of the embodiment of the present invention shows good results in the ESD test and maintains a low surface resistance value even after the reliability test. Further, the polarizing plate of the embodiment of the present invention has good suppression of delay bubbles, color loss during humidification, poor appearance after reliability test, and cracks during irregular shape processing.
  • the polarizing plate of the present invention is suitably used for an image display device such as a liquid crystal display device, an organic EL display device, and an inorganic EL display device.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Organic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne une plaque de polarisation qui, malgré le fait qu'elle présente une couche d'agent adhésif à faible résistance, est mince, présente une durabilité remarquable, présente des défauts d'aspect minimaux, et présente une fissuration minimale lorsqu'elle est usinée en formes inhabituelles. Une plaque de polarisation selon un mode de réalisation de la présente invention comprend : un polariseur ; une couche protectrice disposée sur un côté du polariseur ; une couche de suppression de perméation d'iode disposée sur l'autre côté du polariseur ; et une couche d'agent adhésif disposée sur le côté, du polariseur, à l'opposé de la couche de suppression de perméation d'iode. La couche de suppression de perméation d'iode est un produit solidifié ou thermodurci d'un film de revêtement d'une solution de solvant organique d'une résine. Une composition d'agent adhésif constituant la couche d'agent adhésif comprend un polymère de base et un agent antistatique, le polymère de base ayant une température de transition vitreuse de -50 °C ou moins et une permittivité à 100 kHz de 5,0 ou plus, et une valeur de résistance de surface de la couche d'agent adhésif est de 1,0 × 109Ω/□ ou moins.
PCT/JP2021/040188 2020-11-05 2021-11-01 Plaque de polarisation et dispositif d'affichage d'image l'utilisant WO2022097594A1 (fr)

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CN202180057986.4A CN116097138A (zh) 2020-11-05 2021-11-01 偏振片及使用了该偏振片的图像显示装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023234100A1 (fr) * 2022-05-31 2023-12-07 日東電工株式会社 Plaque de polarisation avec une couche de retard et dispositif d'affichage d'image

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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TW202313908A (zh) * 2021-09-29 2023-04-01 日商綜研化學股份有限公司 黏合劑組成物及包含它的層疊體
WO2024190847A1 (fr) * 2023-03-16 2024-09-19 日東電工株式会社 Stratifié optique, panneau d'affichage d'image, et dispositif d'affichage d'image
JP2024131532A (ja) * 2023-03-16 2024-09-30 日東電工株式会社 光学積層体、画像表示パネル、及び画像表示装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065384A1 (fr) * 1999-04-21 2000-11-02 Fuji Photo Film Co., Ltd. Plaque de contraste de phase comprenant une feuille de film d'ester de cellulose contenant un compose aromatique
JP2000314811A (ja) * 1999-03-03 2000-11-14 Konica Corp セルロースエステルを含む光学フィルム、偏光板、液晶表示装置
JP2010121118A (ja) * 2008-10-21 2010-06-03 Nippon Synthetic Chem Ind Co Ltd:The 粘着剤組成物および粘着剤、ならびに光学部材用粘着剤、それを用いて得られる粘着剤層付き光学部材
JP2011017000A (ja) * 2009-06-09 2011-01-27 Nippon Synthetic Chem Ind Co Ltd:The 粘着剤組成物および粘着剤、ならびに光学部材用粘着剤、それを用いて得られる粘着剤層付き光学部材
JP2014189786A (ja) * 2013-03-28 2014-10-06 Nitto Denko Corp 粘着剤組成物、粘着シート、及び光学フィルム
KR20160107646A (ko) * 2015-03-04 2016-09-19 동우 화인켐 주식회사 점착제 조성물 및 이를 포함하는 편광판
JP2016172808A (ja) * 2015-03-17 2016-09-29 綜研化学株式会社 光学部材用粘着剤および光学積層体
KR20170065885A (ko) * 2015-12-04 2017-06-14 동우 화인켐 주식회사 대전방지 점착제 조성물 및 이를 이용한 편광판
JP2019206709A (ja) * 2019-07-17 2019-12-05 藤森工業株式会社 表面保護フィルム及び光学部材
JP2020003823A (ja) * 2014-01-30 2020-01-09 日東電工株式会社 偏光板及び偏光板の製造方法
JP2020085980A (ja) * 2018-11-19 2020-06-04 コニカミノルタ株式会社 光学フィルム
JP2020098320A (ja) * 2018-12-17 2020-06-25 日東電工株式会社 ベゼル付き画像表示パネル、画像表示装置および粘着剤層付き光学フィルム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015193371A (ja) 2014-03-27 2015-11-05 日本電産エレシス株式会社 電動パワーステアリング用電子制御装置

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000314811A (ja) * 1999-03-03 2000-11-14 Konica Corp セルロースエステルを含む光学フィルム、偏光板、液晶表示装置
WO2000065384A1 (fr) * 1999-04-21 2000-11-02 Fuji Photo Film Co., Ltd. Plaque de contraste de phase comprenant une feuille de film d'ester de cellulose contenant un compose aromatique
JP2010121118A (ja) * 2008-10-21 2010-06-03 Nippon Synthetic Chem Ind Co Ltd:The 粘着剤組成物および粘着剤、ならびに光学部材用粘着剤、それを用いて得られる粘着剤層付き光学部材
JP2011017000A (ja) * 2009-06-09 2011-01-27 Nippon Synthetic Chem Ind Co Ltd:The 粘着剤組成物および粘着剤、ならびに光学部材用粘着剤、それを用いて得られる粘着剤層付き光学部材
JP2014189786A (ja) * 2013-03-28 2014-10-06 Nitto Denko Corp 粘着剤組成物、粘着シート、及び光学フィルム
JP2020003823A (ja) * 2014-01-30 2020-01-09 日東電工株式会社 偏光板及び偏光板の製造方法
KR20160107646A (ko) * 2015-03-04 2016-09-19 동우 화인켐 주식회사 점착제 조성물 및 이를 포함하는 편광판
JP2016172808A (ja) * 2015-03-17 2016-09-29 綜研化学株式会社 光学部材用粘着剤および光学積層体
KR20170065885A (ko) * 2015-12-04 2017-06-14 동우 화인켐 주식회사 대전방지 점착제 조성물 및 이를 이용한 편광판
JP2020085980A (ja) * 2018-11-19 2020-06-04 コニカミノルタ株式会社 光学フィルム
JP2020098320A (ja) * 2018-12-17 2020-06-25 日東電工株式会社 ベゼル付き画像表示パネル、画像表示装置および粘着剤層付き光学フィルム
JP2019206709A (ja) * 2019-07-17 2019-12-05 藤森工業株式会社 表面保護フィルム及び光学部材

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023234100A1 (fr) * 2022-05-31 2023-12-07 日東電工株式会社 Plaque de polarisation avec une couche de retard et dispositif d'affichage d'image

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