WO2022182114A1 - Plaque de polarisation, et dispositif d'affichage d'image la comprenant - Google Patents

Plaque de polarisation, et dispositif d'affichage d'image la comprenant Download PDF

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Publication number
WO2022182114A1
WO2022182114A1 PCT/KR2022/002630 KR2022002630W WO2022182114A1 WO 2022182114 A1 WO2022182114 A1 WO 2022182114A1 KR 2022002630 W KR2022002630 W KR 2022002630W WO 2022182114 A1 WO2022182114 A1 WO 2022182114A1
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polarizing plate
film
layer
reflectance
weight
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PCT/KR2022/002630
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English (en)
Korean (ko)
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안혜진
정재욱
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동우 화인켐 주식회사
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Publication of WO2022182114A1 publication Critical patent/WO2022182114A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D201/00—Coating compositions based on unspecified macromolecular compounds
    • C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C09D201/04—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/006—Anti-reflective coatings
    • 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
    • G02B5/30—Polarising elements
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding 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
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

Definitions

  • the present invention relates to a polarizing plate and an image display device including the same, and more particularly, to a polarizing plate having a low panel reflectance and suppressing visibility of normal reflection and sparkling phenomenon when the panel is applied, and an image display device including the same.
  • Liquid crystal display device is used for various purposes such as laptops, mobile phones, and liquid crystal TVs, and is generally used as a liquid crystal cell containing liquid crystal and a polarizing plate, and an adhesive layer or adhesive layer for bonding them. is composed
  • the polarizing plate used in the liquid crystal display is generally a polarizer in which an iodine-based compound or a dichroic dye is adsorbed and oriented on a polyvinyl alcohol (PVA) resin film arranged in a certain direction (also called a 'polarizing film') Including, at least one surface of the polarizer has a multilayer structure in which a polarizer protective film represented by a triacetyl cellulose film (TAC) is laminated through an adhesive.
  • PVA polyvinyl alcohol
  • TAC triacetyl cellulose film
  • the flip-structured panel has a problem in that the luminous quality is deteriorated because the electrode of the thin film transistor array substrate is exposed on the upper portion and the panel reflectance is increased.
  • One object of the present invention is to provide a polarizing plate capable of lowering panel reflectance and suppressing glare and sparkling when applied to a borderless type liquid crystal display device including a flip-structured panel.
  • Another object of the present invention is to provide an image display device including the polarizing plate.
  • the present invention is a polarizing plate comprising a polarizer and a surface treatment film laminated on one surface of the polarizer,
  • the surface-treated film has a total haze of 15 to 25% and a reflectance of 1% or less
  • A is the reflectance (%) of the black plate (Black)
  • A' is the reflectance (%) of the black plate (Black) to which the polarizing plate is bonded
  • B' is the reflectance (%) of the metal substrate to which the polarizing plate is bonded.
  • the surface-treated film may be one in which a low-reflection layer, an anti-glare layer, and a base film are sequentially stacked from the viewer side.
  • the low reflection layer may be formed from a composition for forming a low reflection layer including a fluorine-based resin.
  • the anti-glare layer may be formed from a composition for forming an anti-glare layer including a light-transmitting resin, light-transmitting particles, a photopolymerization initiator, and a solvent.
  • the polarizing plate according to an embodiment of the present invention may be used for a borderless type liquid crystal display including a flip-structured panel.
  • the polarizing plate according to an embodiment of the present invention may further include a retardation layer laminated on the other surface of the polarizer.
  • a pressure-sensitive adhesive layer may be further laminated on a surface opposite to the surface opposite to the polarizer of the retardation layer.
  • a peelable protective film may be further laminated on the opposite surface of the surface-treated film opposite to the polarizer.
  • a release film may be further laminated on a surface opposite to the surface opposite to the retardation layer of the pressure-sensitive adhesive layer.
  • the present invention provides an image display device including the polarizing plate.
  • the polarizing plate according to the present invention When the polarizing plate according to the present invention is applied to a borderless type liquid crystal display device including a flip-structured panel, it is possible to lower the panel reflectance and suppress the reflection and sparkling phenomenon, thereby improving the visual quality. Therefore, the polarizing plate according to the present invention can be advantageously applied to a borderless type liquid crystal display including a flip-structured panel.
  • 1 to 3 are schematic cross-sectional views of a polarizing plate according to an embodiment of the present invention.
  • the present invention is a polarizing plate comprising a polarizer and a surface-treated film laminated on one surface of the polarizer,
  • the surface-treated film has a total haze of 15 to 25% and a reflectance of 1% or less
  • A is the reflectance (%) of the black plate (Black)
  • A' is the reflectance (%) of the black plate (Black) to which the polarizing plate is bonded
  • B' is the reflectance (%) of the metal substrate to which the polarizing plate is bonded.
  • a polarizing plate according to an embodiment of the present invention controls the overall haze of the surface-treated film to 15 to 25%, controls the reflectance to 1% or less, and satisfies Equation 1, thereby having a flip structure. It is possible to prevent deterioration of visual quality due to an increase in the reflectance of the panel in the panel. Accordingly, the polarizing plate according to an embodiment of the present invention can be advantageously applied to a liquid crystal display device of a borderless type including a panel having a flip structure.
  • the haze is prescribed in JIS K 7105-1981 "Test method for optical properties of plastics", and the method itself for determining the haze is also prescribed in JIS K 7136:2000 “Method for obtaining haze of plastic-transparent material”.
  • the haze is a value defined by Equation 2 below.
  • the total haze of the surface-treated film may be 15 to 25% as described above. If the total haze of the surface-treated film is less than 15%, the external light reflection phenomenon may occur in the panel, so that the screen may not be easily recognized, and if it exceeds 25%, the clarity and visibility of the display may be deteriorated.
  • Reflection is a physical phenomenon in which waves change directions at the boundary between two different media.
  • the reflectance is a ratio of the energy of the reflected light to the energy of the incident light, and indicates how many types of radiation waves including light are reflected from the surface of the object.
  • the reflectance of the surface-treated film means the reflectance measured at the viewer side of the surface-treated film.
  • the reflectance of the surface-treated film may be 1% or less as described above.
  • the reflectance of the surface-treated film exceeds 1%, glare may occur due to reflection by external light.
  • the polarizing plate according to an embodiment of the present invention satisfies Equation 1 below as described above.
  • A is the reflectance (%) of the black plate (Black)
  • A' is the reflectance (%) of the black plate (Black) to which the polarizing plate is bonded
  • B' is the reflectance (%) of the metal substrate to which the polarizing plate is bonded.
  • the reflectance (%) of the black plate means the reflectance measured with respect to the black plate
  • the reflectance (%) of the metal substrate means the reflectance measured with respect to the metal substrate.
  • the reflectance (%) of the metal substrate may be measured using an aluminum (Al) substrate as the metal substrate.
  • the reflectance (%) of the black plate to which the polarizing plate is bonded means the reflectance measured on the polarizing plate side of the black plate to which the polarizing plate is bonded, and the reflectance (%) of the metal substrate to which the polarizing plate is bonded is the polarizing plate side of the metal substrate to which the polarizing plate is bonded. Means the reflectance measured in .
  • the reflectance may be measured according to the method described in Experimental Examples to be described later using, for example, CM-2600D (Konica Minolta).
  • the [(A'/B')/(A/B)] ⁇ 100 value is less than 50, image reflection may occur, and if it exceeds 100, glare caused by external light phenomenon may occur.
  • the total haze and reflectance of the surface-treated film, and the value of Equation 1 can be controlled by adjusting the components, content, etc. of the composition for forming an anti-glare layer and/or a composition for forming a low-reflection layer. have.
  • FIG. 1 is a structural cross-sectional view of a polarizing plate according to an embodiment of the present invention.
  • a polarizing plate according to an embodiment of the present invention includes a polarizer 110 and a surface treatment film 120 laminated on one surface of the polarizer.
  • the surface treatment film 120 may be one in which a low-reflection layer 121 , an anti-glare layer 122 , and a base film 123 are sequentially stacked from the viewer side.
  • the polarizer 110 is an optical film that serves to change incident natural light into a desired single polarization state (linear polarization state), and is particularly limited as long as it can perform a polarization function in general in the field. don't
  • the polarizer 110 is specifically iodine or dichroic on a hydrophilic polymer film such as a polyvinyl alcohol-based film, a partially formalized polyvinyl alcohol-based film, or an ethylene/vinyl acetate copolymer-based partially saponified film.
  • a film prepared by adsorbing a dichroic substance such as a sex dye and uniaxially stretching the film and polyene-based oriented films such as dehydrated polyvinyl alcohol-based films or dechlorinated polyvinyl chloride-based films.
  • a polarizer manufactured by adsorbing a dichroic substance such as iodine to a polyvinyl alcohol-based film and uniaxially stretching the film is particularly preferable from the viewpoint of high polarization dichroism.
  • the thickness of the polarizer 110 is in the range of 5 ⁇ m to 30 ⁇ m, preferably 15 to 25 ⁇ m. If the thickness of the polarizer 110 is less than 5 ⁇ m, it is difficult to control the polarizer manufacturing process and the polarizer may be broken or the axial uniformity of the polarizer may be lowered. This may increase the amount of warpage.
  • a polarizer prepared by adsorbing iodine on a polyvinyl alcohol-based film and uniaxially stretching the film is, for example, immersing a polyvinyl alcohol-based film in an aqueous iodine solution for coloring, and stretching the film to 3 to 7 times the original length. It can be produced by stretching.
  • the aqueous solution may contain boric acid, zinc sulfate, zinc chloride, etc., or the polyvinyl alcohol-based film may be immersed in an aqueous solution such as potassium iodide, if necessary.
  • the polyvinyl alcohol-based film may be immersed in water and washed before coloring, if necessary.
  • the cleaning of the polyvinyl alcohol-based film not only removes contaminants from the film surface or washes off the anti-blocking agent, but also prevents non-uniformities such as uneven coloring by swelling the polyvinyl alcohol-based film.
  • Stretching of the film may be performed after coloring the film with iodine, during coloring of the film, or before coloring the film with iodine. Stretching may be carried out in an aqueous solution of boric acid or potassium iodide, or in an aqueous solution.
  • polarizers examples include VF-PS7500, VF-PE6000, VF-PE5000, VF-PE4500, VF-PE3000, VF-PE2000 (Kuraray), M-7500 (Nippon Gosei) and the like. .
  • any transparent plastic film may be used as the base film 123 of the surface treatment film 120 .
  • a cycloolefin-based derivative having a unit of a monomer containing a cycloolefin such as norbornene or a polycyclic norbornene-based monomer, cellulose (diacetyl cellulose, triacetyl cellulose, acetyl cellulose butyrate, isobutyl ester cellulose, propy onyl cellulose, butyryl cellulose, acetyl propionyl cellulose), ethylene vinyl acetate copolymer, polyester, polystyrene, polyamide, polyetherimide, polyacrylic, polyimide, polyethersulfone, polysulfone, polyethylene, polypropylene, poly Methylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polyether ketone, poly
  • a uniaxially or biaxially oriented polyester film having excellent transparency and heat resistance a cycloolefin derivative film having excellent transparency and heat resistance and capable of responding to an enlargement of the film, transparency and optically anisotropy
  • a triacetyl cellulose film without free acrylic film and an acrylic film having high transparency and low cost may be suitably used.
  • the thickness of the base film 123 is not particularly limited, but may be 8 to 200 ⁇ m, specifically 20 to 100 ⁇ m. When the thickness of the base film is less than 8 ⁇ m, the strength of the film is lowered and workability is deteriorated.
  • the anti-glare layer 122 is a layer having a function of reducing the reflection of external light by using diffuse reflection, and controls the overall haze and reflectance of the viewer side of the surface-treated film within the above-described range, and As long as it satisfies Equation 1, it may be used without limitation.
  • the anti-glare layer 122 may be formed from a composition for forming an anti-glare layer including a light-transmitting resin, light-transmitting particles, a photopolymerization initiator, and a solvent.
  • the light-transmitting resin is a photocurable resin
  • the photocurable resin may include a photocurable (meth)acrylate oligomer, a photocurable dendrimer and/or a monomer, and in particular, a photocurable dendrimer is preferable.
  • Urethane (meth)acrylate can be prepared by reacting a polyfunctional (meth)acrylate having a hydroxyl group in a molecule and a compound having an isocyanate group in the presence of a catalyst.
  • polyfunctional (meth)acrylate having a hydroxyl group in the molecule examples include 2-hydroxyethyl (meth)acrylate, 2-hydroxyisopropyl (meth)acrylate, 4-hydroxybutyl (meth)acryl At least one kind may be selected from the group consisting of a rate, caprolactone ring-opened hydroxy acrylate, a pentaerythritol tri/tetra (meth) acrylate mixture, and a dipentaerythritol penta/hexa (meth) acrylate mixture.
  • the compound having an isocyanate group examples include 1,4-diisocyanatobutane, 1,6-diisocyanatohexane, 1,8-diisocyanatooctane, 1,12-diisocyanatododecane, 1, 5-diisocyanato-2-methylpentane, trimethyl-1,6-diisocyanatohexane, 1,3-bis(isocyanatomethyl)cyclohexane, trans-1,4-cyclohexene diisocyanate, 4,4 '-Methylenebis(cyclohexyl isocyanate), isophorone diisocyanate, toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, xylene-1,4-diisocyanate, tetramethylxylene-1, 3-diisocyanate, 1-chloromethyl-2,4-diisocyanato
  • the photocurable dendrimer is a compound in which molecular chains are regularly polymerized from the center to the outside according to a certain rule. , when the branched ends of the first generation formed undergo polymerization again, the second generation becomes the second generation, and repeated polymerization reactions proceed.
  • a photopolymerizable dendrimer used in the art is used without limitation, for example, it may be a dendrimer (meth)acrylate oligomer having more than 10-functional function, for example, SP-1106 (Miwon Special Chemical Co., Ltd.) as a commercial product. ) and so on.
  • the monomer those commonly used can be used without limitation, and a monomer having an unsaturated group such as a (meth)acryloyl group, a vinyl group, a styryl group, and an allyl group in the molecule as a photocurable functional group is preferable, and among them, (meth) A monomer having an acryloyl group is preferred.
  • the monomer having the (meth) acryloyl group is a specific example, neopentyl glycol acrylate, 1,6-hexanediol (meth) acrylate, propylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate , dipropylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylolethane tri (meth) acrylate, 1,2,4-cyclohexanetetra(meth)acrylate, pentaglycerol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol tri(meth)acrylate, dipentaerythritol tri(meth)acrylic Rate, dipentaerythritol penta
  • the photo-curable (meth) acrylate oligomer, photo-curable dendrimer, and monomer which are the light-transmitting resins exemplified above, may be used alone or in combination of two or more.
  • the light-transmitting resin may be included in an amount of 32 to 80% by weight, preferably 32 to 50% by weight, based on 100% by weight of the total composition for forming the antiglare layer.
  • content of the light-transmitting resin is less than 32% by weight, it may be difficult to satisfy the total haze, reflectance and/or Equation 1 of the surface-treated film, and when it exceeds 80% by weight, the total haze, reflectance and/or of the surface-treated film It may be difficult to satisfy Equation 1 or culling may be severe.
  • the light-transmitting particles are used in the art and may be used without particular limitation as long as they are particles capable of imparting surface treatment properties.
  • Examples of the light-transmitting particles include silica particles, silicone resin particles, melamine-based resin particles, acrylic resin particles, styrene-based resin particles, acrylic-styrene-based resin particles, polycarbonate-based resin particles, polyethylene-based resin particles, and vinyl chloride-based resins. particles and the like can be used.
  • Each of the light-transmitting particles exemplified above may be used alone or in combination of two or more. It is preferable that the average particle diameter of the translucent particle is 0.01-10 micrometers. When the average particle diameter of the light-transmitting particles is less than 0.01 ⁇ m, it is difficult to form irregularities on the surface of the surface treatment layer 122, so that the surface treatment property is lowered. It has the disadvantage of low visibility.
  • the light-transmitting particles may be included in an amount of 5 to 15% by weight, preferably 10 to 15% by weight, based on 100% by weight of the total composition for forming the anti-glare layer. If the content of the light-transmitting particles is less than 5% by weight, haze may be reduced, glare due to external light may increase due to a decrease in light scattering, and if it exceeds 15% by weight, the total haze, reflectance and / Alternatively, it is difficult to satisfy Equation 1, and appearance defects such as surface scratches due to external impact may increase, foreign material defects may occur due to aggregation of particles, and light transmittance may decrease.
  • photopolymerization initiator those used in the art may be used without limitation.
  • the photopolymerization initiator 2-methyl-1-[4-(methylthio)phenyl]2-morpholinepropanone-1, diphenylketone benzyldimethylketal, 2-hydroxy-2-methyl-1-phenyl -1-one, 4-hydroxycyclophenyl ketone, dimethoxy-2-phenylacetophenone, anthraquinone, fluorene, triphenylamine, carbazole, 3-methylacetophenone, 4-chloroacetophenone, 4,4 - At least one selected from the group consisting of dimethoxyacetophenone, 4,4-diaminobenzophenone, 1-hydroxycyclohexylphenyl ketone and benzophenone may be used.
  • the photopolymerization initiator may be included in an amount of 0.1 to 10% by weight, preferably 1 to 5% by weight, based on 100% by weight of the total composition for forming the antiglare layer. If the content of the photopolymerization initiator is less than 0.1% by weight, the curing rate of the composition may be slow and non-curing may occur and thus mechanical properties may be deteriorated, and if it exceeds 10% by weight, cracks may occur in the coating film due to overcuring.
  • the solvent may be used without limitation as long as it is known as a solvent in the art.
  • the solvent is alcohol (methanol, ethanol, isopropanol, butanol, methyl cellulose, ethyl cellulose, 1-methoxy-2-propanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, etc.), ketone (methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, diethyl ketone, dipropyl ketone, cyclohexanone, etc.), hexane (hexane, heptane, octane, etc.), benzene type (benzene, toluene, xylene, etc.) ) and the like may be preferably used.
  • Each of the solvents exemplified above may be used alone or in combination of two or more.
  • the solvent may be included in an amount of 10 to 95% by weight based on 100% by weight of the total composition for forming the antiglare layer. If the content of the solvent is less than 10% by weight, the viscosity is high and workability is lowered, and when it exceeds 95% by weight, a lot of time is required in the drying process and economical efficiency is lowered.
  • composition for forming an anti-glare layer includes components commonly used in the art, for example, antioxidants, UV absorbers, light stabilizers, thermal polymerization inhibitors, leveling agents, surfactants, lubricants, and antifouling agents. It may additionally include an agent and the like.
  • the anti-glare layer 122 may be formed by applying a composition for forming an anti-glare layer on one surface of the base film 123 , drying, and then UV curing.
  • composition for forming an anti-glare layer can be coated by appropriately using known methods such as die coater, air knife, reverse roll, spray, blade, casting, gravure, micro gravure, spin coating, and the like.
  • the volatiles are evaporated to dry at a temperature of 30 to 150° C. for 10 seconds to 1 hour, more specifically, for 30 seconds to 30 minutes, and then cured by irradiating UV light make it
  • the irradiation amount of UV light may specifically be about 0.01 to 10J/cm 2 , and more specifically 0.1 to 2 J/cm 2 .
  • the thickness of the anti-glare layer to be formed may be specifically 1 to 10 ⁇ m, preferably 2 to 5 ⁇ m. If the thickness of the anti-glare layer is less than 1 ⁇ m, anti-glare properties may not be expressed, and if it exceeds 10 ⁇ m, fairness may be deteriorated due to a decrease in bending resistance.
  • the low-reflection layer 121 is a layer having a function of preventing a decrease in visibility due to light reflection or light refraction that may occur on the surface of the polarizing plate, and the total haze and reflectance of the surface-treated film are described above. It can be used without limitation as long as it is controlled within the range and satisfies Equation 1 above.
  • the low reflection layer 121 may be formed from a composition for forming a low reflection layer including a fluorine-based resin.
  • the low reflection layer 121 may be formed from a composition for forming a low reflection layer including a fluorine-based resin, a light-transmitting resin, fine particles having pores, a photopolymerization initiator, and a solvent.
  • the fluorine-based resin is a component that satisfies the overall haze of the surface-treated film and Equation 1 without reducing the antireflection function of the low-reflection layer 121, for example, a polymerizable compound containing at least a fluorine atom in the molecule. or a polymer thereof.
  • the fluorine-based resin may include a fluorine atom in a main chain or a side chain, directly constituting the chain or may be included in a substituted form in the chain.
  • KY-1203 made by Shinetsu
  • the fluorine-based resin may be included in an amount of 0.5 to 5% by weight, preferably 0.5 to 2% by weight, based on 100% by weight of the total composition for forming a low reflection layer. If the content of the fluorine-based resin is less than 0.5% by weight, it may be difficult to satisfy the overall haze, reflectance and/or Equation 1 of the surface-treated film, the refractive index may be lowered, the stain resistance may be insignificant, and scratch resistance This may be reduced, and if it exceeds 5% by weight, it may be difficult to obtain a uniform surface during coating, or the friction coefficient may be excessively reduced, so that the abrasion resistance may be deteriorated, and the durability of the low-reflective layer may be reduced.
  • the fine particles having the voids make it possible to lower the refractive index while maintaining the strength of the low reflection layer 121 .
  • microparticles having voids refer to microparticles whose refractive index is reduced in inverse proportion to the occupancy of gas in the microparticles compared to the original refractive index of the microparticles as a structure in which the gas is filled and/or a porous structure including a gas inside the microparticles.
  • fine particles capable of forming a nanoporous structure inside and/or at least part of the surface are also included depending on the shape, structure, aggregation state, and dispersion state of the fine particles in the coating film.
  • the strength of the low reflection layer 121 is improved and the refractive index of the low reflection layer 121 can be adjusted within the range of about 1.25 to 1.45.
  • the fine particles having the voids are specifically for the purpose of incorporating into the packing column and the porous part of the surface for adsorption of various chemical substances, the porous fine particles used for fixing the catalyst, or the insulating material or low-k material. and a dispersion and agglomerate of hollow fine particles.
  • the trade name ELECON hollow silica particles which are a group catalytic chemical product, the aggregates of porous silica fine particles among the trade names Nipsil or Nipgel manufactured by Japan Silica Industries, Ltd., and silica fine particles manufactured by Nissan Chemical Industries, Ltd. Colloidal silica having a linked structure can be used selected from the UP series (trade name).
  • the average particle diameter of the fine particles having the voids may be 5 nm to 300 nm, preferably 8 nm to 100 nm, and more preferably 40 nm to 80 nm. When the average particle diameter of the fine particles having voids is within the above range, it is possible to impart excellent transparency to the low reflection layer 121 .
  • the microparticles having the pores may be included in an amount of 0.5 to 10% by weight based on 100% by weight of the total composition for forming a low reflection layer.
  • the particles having the pores are included within the above range, the refractive index of the low-reflection layer 121 can be adjusted, and the anti-reflection effect is excellent.
  • the light-transmitting resin may be included in an amount of 1 to 80% by weight, preferably 1 to 30% by weight, based on 100% by weight of the total composition for forming the low reflection layer.
  • the refractive index of the low-reflective layer 121 can be adjusted, and the anti-reflection effect is excellent.
  • the photopolymerization initiator may be included in an amount of 0.1 to 10% by weight, preferably 1 to 5% by weight, based on 100% by weight of the total composition for forming a low reflection layer. If the content of the photopolymerization initiator is less than 0.1% by weight, the curing rate of the composition may be slow and non-curing may occur and thus mechanical properties may be deteriorated, and if it exceeds 10% by weight, cracks may occur in the coating film due to overcuring.
  • the solvent may be included in an amount of 10 to 95% by weight based on 100% by weight of the total composition for forming the low reflection layer. If the content of the solvent is less than 10% by weight, the viscosity is high and workability is lowered, and when it exceeds 95% by weight, a lot of time is required in the drying process and economical efficiency is lowered.
  • the composition for forming a low reflection layer is an antioxidant, a UV absorber, a light stabilizer, a leveling agent, a surfactant, an antifouling agent, an inorganic nano, which is generally used in the art within the range that does not reduce the effect of the present invention. Particles and the like may be additionally included.
  • the low reflection layer may be formed by applying the composition for forming the low reflection layer on the anti-glare layer, drying it, and then UV curing.
  • composition for forming the low reflective layer can be coated by appropriately using a known method such as a die coater, an air knife, a reverse roll, spray, blade, casting, gravure, micro gravure, or spin coating.
  • the volatiles are evaporated to dry at a temperature of 30 to 150° C. for 10 seconds to 1 hour, more specifically, for 30 seconds to 30 minutes, and then UV It is cured by irradiating light.
  • the irradiation amount of the UV light may be specifically about 0.01 to 10J/cm 2 , more specifically 0.1 to 2 J/cm 2 .
  • the thickness of the formed low-reflection layer may be specifically 50 to 200 nm, preferably 50 to 100 nm.
  • the thickness of the low-reflection layer is less than 50 nm, the effect of preventing reflection and refraction of external light may be reduced, and if it exceeds 200 nm, transparency may be deteriorated and optical properties may be deteriorated.
  • the polarizer 110 may be bonded to the surface treatment film 120 with an adhesive layer interposed therebetween.
  • the adhesive layer may be formed from a water-based adhesive in which an adhesive component is dissolved or dispersed in water, a composition cured by irradiation with active energy rays (hereinafter, may be referred to as an active energy ray-curable adhesive), and the like.
  • water-based adhesive examples include a composition containing a polyvinyl alcohol-based resin or a urethane resin as a main component, and a crosslinking agent or a curable compound such as an isocyanate-based compound or an epoxy compound to improve adhesion.
  • the polyvinyl alcohol-based resin includes partially saponified polyvinyl alcohol, fully saponified polyvinyl alcohol, carboxyl group-modified polyvinyl alcohol, acetoacetyl group-modified polyvinyl alcohol, and methylol group-modified polyvinyl alcohol. and modified polyvinyl alcohol-based resins such as amino group-modified polyvinyl alcohol.
  • An aqueous solution of a polyvinyl alcohol-based resin is an adhesive, and the concentration of the polyvinyl alcohol-based resin in the adhesive is usually 1 to 10 parts by weight, preferably 1 to 5 parts by weight, based on 100 parts by weight of water.
  • the adhesive containing the aqueous solution of the polyvinyl alcohol-based resin may contain a curable compound such as a polyhydric aldehyde, a water-soluble epoxy resin, a melamine-based compound, a zirconia-based compound, and a zinc compound to improve adhesion.
  • a curable compound such as a polyhydric aldehyde, a water-soluble epoxy resin, a melamine-based compound, a zirconia-based compound, and a zinc compound to improve adhesion.
  • water-soluble epoxy resin a water-soluble polyamide epoxy obtained by reacting epichlorohydrin with a polyamide polyamine obtained by reaction of a polyalkylene polyamine such as diethylenetriamine or triethylenetetraamine with a dicarboxylic acid such as adipic acid and resin.
  • a polyamide polyamine obtained by reaction of a polyalkylene polyamine such as diethylenetriamine or triethylenetetraamine with a dicarboxylic acid such as adipic acid and resin.
  • polyamide epoxy resins include “Sumirez Resin 650" and “Sumirez Resin 675" (Sumika Chemtex Co., Ltd.), and "WS-525" (Nippon PMC Co., Ltd.).
  • Content of a water-soluble epoxy resin is 1-100 weight part normally with respect to 100 weight part of polyvinyl alcohol-type resin, Preferably it is 1-50 weight part.
  • a polyester-based ionomer-type urethane resin is preferable as the urethane resin.
  • the polyester-based ionomer-type urethane resin is a urethane resin having a polyester skeleton, and an ionic component (hydrophilic component) is introduced thereinto. Even if an ionomer type urethane resin does not use an emulsifier, it emulsifies in water and becomes an emulsion.
  • the aqueous adhesive containing the polyester-based ionomer-type urethane resin preferably contains a water-soluble epoxy compound as a crosslinking agent.
  • the water-based adhesive is injected between the polarizer 110 and the surface-treated film 120, dried to evaporate water, and a thermal crosslinking reaction is performed. By advancing, sufficient adhesiveness can be provided to both.
  • An active energy ray hardening-type adhesive agent receives and hardens active energy ray irradiation.
  • the active energy ray-curable adhesive include a cationically polymerizable active energy ray-curable adhesive containing an epoxy compound and a cationic polymerization initiator, a radically polymerizable active energy ray-curable adhesive containing an acrylic curing component and a radical polymerization initiator, and a cationic polymerizable epoxy compound.
  • An active energy ray-curable adhesive containing both a curing component and a radically polymerizable curing component such as an acrylic compound, and further comprising a cationic polymerization initiator and a radical polymerization initiator, and an electron beam curing type active energy ray-curable adhesive that is cured by irradiating an electron beam, etc. can be heard
  • the electron beam curing type active energy ray curing type adhesive does not contain an initiator.
  • the radically polymerizable active energy ray hardening-type adhesive agent containing an acryl-type hardening component and a radical polymerization initiator is preferable.
  • the acrylic curing component is a (meth)acrylic compound having at least one (meth)acryloyloxy group in the molecule, specifically methyl (meth)acrylate, allyl methacrylate, 2-ethoxyethyl (meth)acryl rate, isodecyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, glycidyl (meth) acrylate, phenoxyethyl (meth) acrylate, monofunctional monomers such as urethane acrylate, aminoethyl (meth)acrylate, and isobornyl (meth)acrylate; 1,4-butanediol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, ethylene glycol di(meth)acrylate, bisphenol A ethylene glycol diacrylate, polyethylene glycol di(meth)acrylate difunctional monomers such as;
  • the thickness of the adhesive layer may be appropriately determined according to the type of resin serving as the adhesive, adhesive strength, environment in which the adhesive is used, and the like.
  • the adhesive layer preferably has a thickness of 0.01 ⁇ m to 50 ⁇ m, more preferably 0.05 ⁇ m to 20 ⁇ m, and still more preferably 0.1 ⁇ m to 10 ⁇ m.
  • a retardation layer 130 may be further laminated on the other surface of the polarizer 110 .
  • the retardation layer 130 may be, for example, a stretched or unstretched polymer film, or a liquid crystal layer obtained by curing a reactive liquid crystal compound.
  • a reactive liquid crystal compound which is a liquid crystal compound having optical anisotropy and crosslinking by light or heat, may be used.
  • the retardation layer 130 may have a single layer structure or a multilayer structure in which two or more layers are stacked.
  • the retardation layer 130 may have a positive C plate layer, a combination of a positive C plate layer and a negative B plate layer, a combination of a positive uniaxial retardation film and a positive C plate layer, and a negative biaxiality It may have a laminated structure such as a combination of a retardation film and a positive C-plate layer.
  • each layer constituting the retardation layer may be attached to each other through an adhesive agent or may be laminated on each other by direct coating.
  • the polarizer 110 and the retardation layer 130 may be bonded using an adhesive.
  • the pressure-sensitive adhesive may be formed using various pressure-sensitive adhesives or adhesives well known in the art, and the type is not particularly limited.
  • a rubber-based adhesive an acrylic adhesive, a silicone-based adhesive, a urethane-based adhesive, a polyvinyl alcohol-based adhesive, a polyvinylpyrrolidone-based adhesive, a polyacrylamide-based adhesive, a cellulose-based adhesive, a vinyl alkyl ether-based adhesive, etc. for example.
  • the adhesive may be, for example, a photocurable adhesive, and the type thereof is not particularly limited.
  • the photocurable adhesive is crosslinked and cured by receiving active energy rays such as ultraviolet (Ultraviolet, UV), electron beam (EB), etc.
  • active energy rays such as ultraviolet (Ultraviolet, UV), electron beam (EB), etc.
  • the reactive oligomer is an important component that determines the properties of the adhesive, and forms a polymer bond by photopolymerization to form a cured film.
  • the usable reactive oligomer include polyester-based resins, polyether-based resins, polyurethane-based resins, epoxy-based resins, polyacrylic-based resins, and silicone-based resins.
  • the reactive monomer serves as a crosslinking agent and a diluent of the above-described reactive oligomer, and affects adhesive properties.
  • examples of the reactive monomer that can be used include monofunctional monomers, polyfunctional monomers, epoxy-based monomers, vinyl ethers, and cyclic ethers.
  • the photopolymerization initiator serves to initiate photopolymerization by absorbing light energy to generate radicals or cations, and may be used by selecting a suitable one according to the photopolymerization resin.
  • the pressure-sensitive adhesive layer 140 may be further laminated on the surface opposite to the surface opposite to the polarizer of the retardation layer 130 .
  • the pressure-sensitive adhesive layer 140 may serve to attach the polarizing plate 100 to the display panel or the touch panel.
  • the pressure-sensitive adhesive layer 140 may be formed using various pressure-sensitive adhesives well known in the art, and the type thereof is not particularly limited.
  • a rubber-based adhesive an acrylic adhesive, a silicone-based adhesive, a urethane-based adhesive, a polyvinyl alcohol-based adhesive, a polyvinylpyrrolidone-based adhesive, a polyacrylamide-based adhesive, a cellulose-based adhesive, a vinyl alkyl ether-based adhesive, etc. for example.
  • the thickness of the pressure-sensitive adhesive layer 140 is preferably 5 to 30 ⁇ m, but is preferably applied thinly in a range that does not impair workability and durability characteristics, and more preferably 10 to 25 ⁇ m. If the thickness of the pressure-sensitive adhesive layer 140 is less than 5 ⁇ m, pits and damage in the panel cannot be filled, and defects may be recognized.
  • a peelable protective film (not shown) may be further laminated on the opposite surface of the surface-treated film 120 opposite to the polarizer.
  • the peelable protective film includes a substrate and an adhesive layer formed on one surface of the substrate.
  • the pressure-sensitive adhesive layer is attached to the surface-treated film 120 , and when the polarizing plate is attached to the cover window, the pressure-sensitive adhesive layer is peeled off from the surface-treated film 120 so that the protective film can be easily removed.
  • the above-mentioned pressure-sensitive adhesive may be used.
  • polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate;
  • polyolefin films such as polypropylene and polyethylene, etc. are mentioned.
  • the peelable protective film may have a thickness of 10 to 150 ⁇ m, preferably 25 to 130 ⁇ m. If the thickness of the peelable protective film is less than 10 ⁇ m, peeling of the protective film may not be easy, and if it exceeds 150 ⁇ m, adhesion with the polarizer having a protective layer may be reduced.
  • a release film (not shown) may be further laminated on the opposite side of the side opposite to the retardation layer of the pressure-sensitive adhesive layer 140 .
  • the release film is removed when the polarizing plate is attached to a display panel or a touch panel.
  • polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate;
  • polyolefin films such as polypropylene and polyethylene, etc. are mentioned.
  • the surface of the base material of the release film in contact with the pressure-sensitive adhesive layer 140 may be subjected to a release treatment.
  • a release agent such as a silicone-based release agent, a fluorine-based release agent, or a long-chain alkyl graft polymer-based release agent, or a method of surface treatment by plasma treatment may be used.
  • the release film may have a thickness of 10 to 150 ⁇ m, preferably 25 to 130 ⁇ m. When the thickness of the release film is less than 10 ⁇ m, peeling of the release film may not be easy, and when it exceeds 150 ⁇ m, adhesion with the pressure-sensitive adhesive layer 140 may be reduced.
  • One embodiment of the present invention relates to an image display device including the polarizing plate (100).
  • the image display device is applicable to various image display devices such as an organic EL display device, a plasma display device, and a field emission display device as well as a general liquid crystal display device.
  • the image display device may include a borderless type liquid crystal display device including a flip-structured panel.
  • the image display device may further include a configuration known in the art in addition to the polarizing plate.
  • a transparent, unstretched polyvinyl alcohol film having a saponification degree of 99.9% or more and having a thickness of 75 ⁇ m was controlled to moisture so that the moisture content was 4%. Thereafter, after first stretching at a draw ratio of 4.5 times by a heating roll stretching method at 120° C., it was immersed in water (deionized water) at 50° C. for 1 minute to swell. Then, the dye was immersed in an aqueous solution for dyeing at 30° C. containing 5.0 mmol/L of iodine and 4 wt% of potassium iodide for 1 minute. At this time, it was stretched 0.9 times and 1.1 times, respectively, in the swelling and dyeing steps.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.5% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.7% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.7% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.7% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.3% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.5% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • On the anti-glare layer 0.7% by weight of KY-1203 (Shin-Etsu) as a fluorine-based resin, 7% by weight of M-600 (Miwon Specialty Chemical, dipentaerythritol hexaacrylate) as a light-transmitting resin, hollow silica as fine particles having pores having pores
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • the composition for forming an anti-glare layer containing propylene glycol monoethyl ether is coated so that the thickness becomes 4.5 ⁇ m after curing, and then dried at 80° C.
  • An anti-glare layer was formed by irradiating UV with a light amount of 1000 mJ/cm 2 .
  • the composition for forming a low reflection layer comprising 10% by weight of fine particles (dispersion, 60nm in diameter, 45% by weight of solid content), 2% by weight of IRGACURE-184 (BASF) as a photopolymerization initiator, and propylene glycol monoethyl ether as the remaining amount of solvent.
  • the low-reflection layer After coating so that the thickness of the low-reflection layer becomes 0.1 ⁇ m, it was dried at 80° C. for 2 minutes, and then irradiated with UV at an accumulated light amount of 1000 mJ/cm 2 to form a low-reflection layer to prepare a surface-treated film.
  • a polarizing plate was manufactured in the same structure as in the embodiment of FIG. 1 according to the following method.
  • the polarizer prepared in Preparation Example 1 was bonded to the base film of the surface-treated film prepared in Preparation Example and Preparation Comparative Example using an acrylic UV curable adhesive. Thereafter, a polarizing plate was prepared by irradiating UV with an accumulated light amount of 400 mJ/cm 2 .
  • the reflectance was measured using CM-2600D (Konica Minolta) as a spectrophotometer device.
  • the reflectance of the surface-treated film was obtained by measuring the visible side of the surface-treated film.
  • the reflectance (%) of the black plate was obtained by measuring the reflectance (%) of the metal substrate with respect to the black plate, and the aluminum (Al) substrate.
  • the reflectance (%) of the black plate to which the polarizing plate was bonded was obtained by measuring the polarizing plate side of the black plate to which the polarizing plate was bonded, and the reflectance (%) of the metal substrate to which the polarizing plate was bonded was measured from the polarizing plate side of the metal substrate to which the polarizing plate was bonded. got it
  • the reflectance (%) of the black plate (Black) was 5%, and the reflectance (%) of the metal substrate was 85%.
  • a value of [(A'/B')/(A/B)] ⁇ 100 was obtained using the measured reflectance.
  • A is the reflectance (%) of the black plate (Black)
  • B is the reflectance (%) of the metal substrate
  • A' is the reflectance (%) of the black plate (Black) to which the polarizing plate is bonded
  • B' is the polarizing plate It is the reflectance (%) of this bonded metal substrate.
  • the polarizing plate prepared in Examples and Comparative Examples was attached to a panel (27-inch IPS UHD Monitor, resolution 3840*2160), and reflectance was measured at the viewer side to obtain panel reflectance (%).
  • the polarizing plates prepared in Examples and Comparative Examples were attached to a panel (27-inch IPS UHD Monitor, resolution 3840*2160), and visual reflection was observed using a fluorescent lamp as an external light source, and evaluated according to the following evaluation criteria. .
  • a liquid crystal display device was manufactured by attaching the polarizing plate prepared in Examples and Comparative Examples to a panel (27-inch IPS UHD Monitor, resolution 3840*2160), and visually observed the sparkling phenomenon in a dark room where surrounding light was blocked. was carried out. The observation distance was observed with the naked eye at a distance of about 50 cm from the vertical direction (0 degree) of the liquid crystal display, and then evaluated according to the following evaluation criteria.
  • the total haze of the surface-treated film according to the present invention is 15 to 25% and the reflectance is 1% or less, and 50 ⁇ [(A'/B')/(A/B)] ⁇ 100
  • the polarizing plates of Examples 1 to 4 satisfying ⁇ 100 may lower panel reflectance and suppress glare and sparkling.
  • the total haze and/or reflectance of the surface-treated film is out of the above range, or 50 ⁇ [(A'/B')/(A/B)] ⁇ 100 ⁇ 100 of Comparative Examples 1 to 4
  • the panel reflectance was increased, there was a normal reflection, or a sparkling phenomenon was visually recognized.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polarising Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne une plaque de polarisation et un dispositif d'affichage d'image la comprenant, la plaque de polarisation comprenant : un polariseur ; et un film de traitement de surface stratifié sur une surface du polariseur, le film de traitement de surface présentant un trouble total de 15-25 % et un facteur de réflexion inférieur ou égal à 1 %, et satisfaisant une équation mathématique spécifique (1). La plaque de polarisation selon la présente invention, lorsqu'elle est appliquée à un panneau, présente une faible réflectance de panneau et peut inhiber la visibilité d'images fantômes et le phénomène de scintillement.
PCT/KR2022/002630 2021-02-26 2022-02-23 Plaque de polarisation, et dispositif d'affichage d'image la comprenant WO2022182114A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0026813 2021-02-26
KR1020210026813A KR20220122325A (ko) 2021-02-26 2021-02-26 편광판 및 이를 포함하는 화상표시장치

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WO2022182114A1 true WO2022182114A1 (fr) 2022-09-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4262404B2 (ja) * 2000-07-21 2009-05-13 富士フイルム株式会社 防眩性反射防止フィルム、偏光板及び液晶表示装置
KR20100016539A (ko) * 2007-05-08 2010-02-12 스미또모 가가꾸 가부시키가이샤 방현 필름, 방현성 편광판 및 화상 표시 장치
JP5149052B2 (ja) * 2008-03-28 2013-02-20 リンテック株式会社 防眩性ハードコートフィルム及びそれを用いた偏光板
KR20130074879A (ko) * 2011-12-27 2013-07-05 동우 화인켐 주식회사 저반사방현필름이 부착된 편광판 및 이를 포함하는 터치패널부착 화상표시장치
KR20180028821A (ko) * 2016-09-09 2018-03-19 엘지디스플레이 주식회사 보더리스 타입의 액정표시장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4262404B2 (ja) * 2000-07-21 2009-05-13 富士フイルム株式会社 防眩性反射防止フィルム、偏光板及び液晶表示装置
KR20100016539A (ko) * 2007-05-08 2010-02-12 스미또모 가가꾸 가부시키가이샤 방현 필름, 방현성 편광판 및 화상 표시 장치
JP5149052B2 (ja) * 2008-03-28 2013-02-20 リンテック株式会社 防眩性ハードコートフィルム及びそれを用いた偏光板
KR20130074879A (ko) * 2011-12-27 2013-07-05 동우 화인켐 주식회사 저반사방현필름이 부착된 편광판 및 이를 포함하는 터치패널부착 화상표시장치
KR20180028821A (ko) * 2016-09-09 2018-03-19 엘지디스플레이 주식회사 보더리스 타입의 액정표시장치

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