WO2019221573A1 - Film antireflet, plaque polarisante et appareil d'affichage - Google Patents

Film antireflet, plaque polarisante et appareil d'affichage Download PDF

Info

Publication number
WO2019221573A1
WO2019221573A1 PCT/KR2019/006006 KR2019006006W WO2019221573A1 WO 2019221573 A1 WO2019221573 A1 WO 2019221573A1 KR 2019006006 W KR2019006006 W KR 2019006006W WO 2019221573 A1 WO2019221573 A1 WO 2019221573A1
Authority
WO
WIPO (PCT)
Prior art keywords
low refractive
meth
film
inorganic particles
hollow inorganic
Prior art date
Application number
PCT/KR2019/006006
Other languages
English (en)
Korean (ko)
Inventor
변진석
고경문
이상헌
서광석
장영래
Original Assignee
주식회사 엘지화학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020190055866A external-priority patent/KR102280262B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to CN201980012904.7A priority Critical patent/CN111712534B/zh
Priority to US16/978,458 priority patent/US11732142B2/en
Priority to JP2020545503A priority patent/JP7205815B2/ja
Priority to EP19803464.7A priority patent/EP3733745A4/fr
Publication of WO2019221573A1 publication Critical patent/WO2019221573A1/fr

Links

Classifications

    • 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
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • 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
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08—Homopolymers or copolymers of acrylic acid esters
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/10—Homopolymers or copolymers of methacrylic acid esters
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G02B1/111—Anti-reflection coatings using layers comprising organic materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Definitions

  • the present invention relates to an antireflection film, a polarizing plate and a display device. [Technique to become background of invention]
  • a flat panel display device such as a PDP or LCD is equipped with an anti-reflection film for minimizing reflection of light incident from the outside.
  • a method for minimizing the reflection of light a method of dispersing a filler such as inorganic fine particles in a resin and coating on a base film to give irregularities (ant i-glare: AG coating); And a method of forming a plurality of layers having different refractive indices on a base film to use interference of light (ant i-reflect ion: AR coating) or a method of mixing them.
  • the absolute amount of reflected light is on the same level as a general hard coating, but a low reflection effect can be obtained by reducing the amount of light entering the eye by scattering light through irregularities.
  • the AG coating has poor screen clarity due to surface irregularities, much research has recently been conducted on AR coatings.
  • the film using the AR coating As the film using the AR coating, a multilayer structure in which a hard coating layer (high refractive index layer), a low reflection coating layer, and the like are laminated on a base film is commercialized.
  • the film using the conventional AR coating has a disadvantage in that visibility is lowered due to an increase in reflectance at a portion damaged or deformed by an external rub or friction. Accordingly, many studies have been made to obtain an antireflection film in which the reflectance does not increase even when some surfaces are damaged or deformed due to external influences.
  • the present invention is to provide an anti-reflection film that has high mechanical properties such as high wear resistance and scratch resistance and excellent suppression of the increase in reflectance of a part damaged or deformed by external rubbing or friction.
  • this invention is providing the polarizing plate containing the said antireflection film.
  • the present invention is to provide a display device including the anti-reflection film and provides a high screen sharpness.
  • the hard coating layer And it may be provided an anti-reflection film comprising a low refractive index layer satisfying the following formula (1).
  • 3 ⁇ 4 is the average reflectance in the wavelength range of 380 to 780 nm of the low refractive layer
  • 3 ⁇ 4 was measured in the same manner as the method of measuring 3 ⁇ 4 for the low refractive layer after performing a rubbing test for rubbing the surface of the low refractive layer by applying a steel load of 500 g and reciprocating 10 times at a speed of 33 rpm. Average reflectance in the wavelength range from 780 nm to 780 nm.
  • the polarizing plate containing the said antireflection film is provided.
  • a display device including the anti-reflection film may be provided.
  • the low refractive index layer may mean a layer having a low refractive index, for example, a layer exhibiting a refractive index of about 1.2 to 1.6 in a wavelength region of 380 to 780 nm or a wavelength of 550 nm.
  • (meth) acrylate is an acrylate (acrylate) and 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • Methacrylate means both.
  • the photocurable resin generally refers to the polymer resin superposed
  • a fluorine-type compound means the compound in which at least 1 or more fluorine elements are contained among the compounds.
  • the hard coating layer And it is provided with an antireflection film comprising a low refractive index layer satisfying the following formula (1).
  • 3 ⁇ 4 is the average reflectance in the wavelength range of 380 to 780 nm of the low refractive layer
  • 3 ⁇ 4 was measured in the same manner as the method of measuring 3 ⁇ 4 for the low refractive layer after performing a rubbing test that rubs the surface of the low refractive layer by applying a steel load of 500 g and reciprocating 10 times at a speed of 33 rpm. Average reflectance in the wavelength range from 780 nm to 780 nm.
  • Anti-reflection film according to the embodiment can effectively suppress the increase in reflectance of the damaged or deformed portion due to external rubbing or friction.
  • the anti-reflection film has mechanical properties such as high wear resistance and scratch resistance and excellent optical properties. Accordingly, when it is used in a display device, it is possible to remarkably improve the glare caused by light incident from the outside of the device without degrading the image quality, and effectively protect the surface of the device from external impact or stimulus.
  • the low refractive index layer may satisfy the above formula (1).
  • 3 ⁇ 4 is the average reflectance in the wavelength range of 380 to 780 nm of the low refractive index layer
  • Ri is the average reflectance in the wavelength range of 380 to 780 nm of the low refractive layer after the friction test.
  • the friction test is a test that rubs the surface of the low refractive layer by applying 500g load to the steel wool and reciprocating 10 times at a speed of 33 rpm, and when the loaded steel wool is rubbed on the surface of the low refractive layer, the low refractive layer is cut off. Damage or low refractive index 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the degree of average reflectance change before and after the friction test of Equation 1 the effect of suppressing the increase in reflectance of the part damaged or deformed by external rubbing, friction, or the like can be evaluated. Since the low refractive index layer is excellent in suppressing the increase in reflectivity, the degree of change of the average reflectance before and after the friction test of Equation 1 may be less than 0.23 ⁇ 4), less than 0.0183 ⁇ 4), or less than 0.1153 ⁇ 4). Since the low refractive index layer may have no change in the average reflectance even after the friction test is performed, the average reflectance change degree (switch may be 0).
  • the low refractive index layer together with excellent optical and mechanical properties, has a low average reflectance in the visible light region, thereby effectively preventing glare of the display device.
  • the average reflectance (3 ⁇ 4 value of Equation 1) in the wavelength region of 380 to 780 ä may be 0.1 to 2.0%, 0.2 to 1.9%, or 0.3 to 1.8%. have.
  • the low refractive index layer can effectively suppress the increase in reflectance of the portion damaged or deformed by external rubbing or friction.
  • the average reflectance (3 ⁇ 4 value of Equation 1) in the wavelength range of 380 to 7800111 may be 0.3 to 2.2%, 0.4 to 2. 1%, or 0.5 to 2.0%.
  • the low refractive index layer according to the embodiment may satisfy the following Equation 2.
  • the degree of color change (s * ) before and after the friction test of Equation 2 is 1 or less, 0.8 or less, or 0.5 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the color change degree (s1) may be zero.
  • value of said Formula 2 is a thing of the low refractive layer It may be a value of a coordinate system, and specifically, may be 2 to -10.
  • a positive value represents a color biased to yellow
  • a negative value represents a color biased to blue. Therefore, the low refractive layer exhibits the color coordinate values as described above, thereby effectively preventing the glare while transmitting the image as it is without changing the quality of the display device image.
  • the low refractive layer can effectively suppress the color change of the part damaged or deformed by external rubbing or friction.
  • the value of the 01 ⁇ 0/310 color coordinate system ( ⁇ 1 value in Equation 2) may be specifically 3 to -9.
  • the low refractive index layer may include a binder resin.
  • the binder resin may include a copolymer of a polyfunctional (meth) acrylate monomer containing a 2 to 4 functional (meth) acrylate monomer and a 5 to 6 functional (meth) acrylate monomer.
  • the 2 to 4 functional (meth) acrylate-based monomer may have a pentaerythritol structure in the center, and the kind thereof is not limited thereto.
  • the 2 to 4 functional (meth) acrylate monomer having a pentaerythritol structure in the center may be represented by Formula 1 below.
  • 3 ⁇ 4 to 3 ⁇ 4 are hydroxyl groups; (Meth) acrylate groups; Or a substituted or unsubstituted 0 1-40 alkoxy group, provided that at least one of them is 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the 5 to 6 functional (meth) acrylate monomers may have a dipentaerythritol structure in the center, the kind is not limited thereto, for example, dipentaerythritol penta (meth) acrylic Latent, dipentaerythritol nucleated (meth) acrylate or mixtures thereof.
  • the 5- to 6-functional (meth) acrylate monomer having a dipentaerythritol structure in the center may be represented by the following formula (2).
  • Rn to R e are hydroxy groups; (Meth) acrylate groups; Or a substituted or unsubstituted Ci-40 alkoxy group, provided that at least one of them is a (meth) acrylate group.
  • the 2-4 functional (meth) acrylate monomer having a pentaerythritol structure is about 5-6 functional (meth) acrylate monomers having a dipentaerythritol structure. Since it has twice the molecular weight and volume, the packing density of the (meth) acrylate and the relatively small molecular weight and (meth) acrylate in the copolymer are packed dens i in the unit volume. ty) can be maximized, so that the degree of crosslinking can be increased and the free volume can be minimized.
  • the 2 to 4 functional (meth) acrylate monomers and the 5 to 6 functional (meth) acrylate monomers are 9: 1 to 6: 4, 8.5: 1.5 to 6.5: 3.5, or 8: 2 to Due to the crosslinking polymerization at a weight ratio of 7: 3, the degree of crosslinking of the copolymer is maximized and the free volume of the low refractive layer including the same can be minimized. As a result, it is possible to prevent the increase in the reflectance of the portion where external rubbing or friction is applied to the low refractive layer. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the copolymer in which the 2 to 4 functional (meth) acrylate and the 5 to 6 functional (meth) acrylate are cross-polymerized at a weight ratio of 9: 1 to 6: 4 has a free volume of 420 or less in 3 volumes of 12511111. Can be. When the free volume in the 125 ä 3 volume of the copolymer is more than 420, the increase in reflectance of the part damaged or deformed by external rubbing or friction cannot be prevented.
  • the degree of crosslinking of the low refractive layer including the copolymer may be 85% or more, 85 to 99%, 90 to 99%, or 95 to 99%. If the crosslinking density is less than 85%, the reflectance of the portion where the low refractive index layer is damaged or deformed due to external rubbing or friction may increase.
  • the low refractive index layer may further include a portion derived from a fluorine-based compound including a photoreactive functional group.
  • the binder resin of the low refractive index layer may have a lower reflectance and an improved light transmittance as the fluorine-based compound including a photoreactive functional group is included, and may effectively suppress an increase in reflectance of a part damaged or deformed by external rubbing or friction.
  • the low refractive layer of the antireflection film may further include a copolymer of the multifunctional (meth) acrylate monomer and a fluorine compound including a photoreactive functional group.
  • the fluorine-based compound may include or substitute one or more photoreactive functional groups
  • the photoreactive functional group refers to a functional group capable of participating in a polymerization reaction by irradiation of light, for example, by irradiation of visible light or ultraviolet light.
  • the photoreactive functional group may include various functional groups known to be able to participate in a polymerization reaction by irradiation of light, and specific examples thereof may be a (meth) acrylate group, an epoxide group, a vinyl group (1 1) or a thiol group. 03 ⁇ 4 ⁇ 1).
  • the fluorine-based compound including the photoreactive functional group may include 1 to 60% by weight, 2 to 50% by weight, or 3 to 40% by weight of fluorine. If the content of the fluorine is less than 1% by weight, the surface of the low refractive index layer may not be sufficiently arranged to reduce the surface slip properties. If the content exceeds 60% by weight, the scratch resistance of the low refractive layer may be deteriorated. Reflectance increase may occur due to friction.
  • the fluorine-based compound including the photoreactive functional group may further include silicon or a silicon compound. That is, the fluorine-based containing the photoreactive functional group 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the compound may optionally contain a silicon or silicon compound therein, specifically, the content of silicon in the fluorine-based compound including the photoreactive functional group may be 0.1 to 20% by weight, 0.5 to 18% by weight, or 1 to 15% by weight. Can be. Silicon contained in the fluorine-based compound including the photoreactive functional group may serve to prevent transparency of the haze 11326 from occurring in the low refractive layer. On the other hand, when the content of silicon in the fluorine-based compound including the photoreactive functional group is too large, the alkali resistance of the low refractive index layer may be lowered.
  • the fluorine-based compound including the photoreactive functional group may have a weight average molecular weight in terms of polystyrene measured by a weight average molecular weight 1 ⁇ 2 ⁇ method of 2,000 to 200,000, 3,000 to 180,000, or 4,000 to 170,000.
  • the weight average molecular weight of the fluorine-based compound including the photoreactive functional group is less than 2,000, the surface slidability may be lowered because the fluorine component may not be sufficiently arranged on the surface of the low refractive index layer.
  • the reflectance of the deteriorated or damaged or deformed portion may be increased due to external rubbing or friction, and also the compatibility between the fluorine-based compound including the photoreactive functional group and other components may be lowered, resulting in uniform dispersion in the low refractive index layer. As a result, the internal structure or surface properties of the final product may be degraded.
  • the fluorine-based compound including the photoreactive functional group may be an aliphatic compound or an aliphatic ring compound in which at least one photoreactive functional group is substituted and at least one fluorine is substituted for at least one carbon;
  • 111) polydialkylsiloxane polymers eg, polydimethylsiloxane polymers
  • at least one photoreactive functional group is substituted and at least one fluorine is substituted in at least one silicon;
  • the low refractive layer may include 0.1 to 50 parts by weight, 0.3 to 40 parts by weight, or 0.5 to 30 parts by weight of the fluorine compound including the photoreactive functional group based on 100 parts by weight of the copolymer.
  • the surface slip resistance of the low refractive index layer may be lowered. If the content of the fluorine-based compound is greater than 50 parts by weight, the scratch resistance may be deteriorated or damaged or deformed by external rubbing or friction. The reflectance of the part may rise.
  • the low refractive layer is a binder resin; And two or more hollow inorganic particles dispersed in the binder resin and having different particle diameters.
  • the two or more hollow inorganic particles having different particle diameters include hollow inorganic particles having a particle diameter of 40 nm to 60 nm and hollow inorganic particles having a particle size of 65 nm to 100 nm, as measured by dynamic light scattering (DLS). can do.
  • hollow inorganic particles having a relatively small particle diameter are disposed between the hollow inorganic particles having a relatively large particle diameter, thereby
  • the ideal arrangement makes it possible to prevent an increase in reflectance due to rubbing or friction from the outside, and to secure physical properties such as wear resistance and scratch resistance, and furthermore, the anti-reflection film improves the sharpness of the screen of the display device. High mechanical properties can be exhibited at the same time.
  • the hollow inorganic particles included in the low refractive index layer are fine particles having a hollow portion therein, and may have a low refractive index of about 1.20 to 1.40 because the hollow portion contains air having a refractive index of 1.0. In the case where such particles are included in the low refractive layer, even if the hollow inorganic particles themselves have a high density, the refractive index of the low refractive layer can be controlled to be low, thereby achieving low reflectance.
  • the weight ratio between the hollow inorganic particles having a particle size of 40 nm to 60 nm and the hollow inorganic particles having a particle size of 65 nm to 100 nm is 7: 3 to 3: 7, 6: 4 to 4: 6, or 6.5: 4.5 to 5: 5 may be. If the weight ratio range is not satisfied, the arrangement of the hollow inorganic particles may be disturbed, thereby increasing the average reflectance of the low refractive layer due to external rubbing or friction.
  • the two or more types of hollow inorganic particles having different particle diameters may be at least 40 nm to 60 nm, 42 to 60 nm, or 45 to 60 nm hollow inorganic particles having a particle size of 65 nm to 100 nm, 65 nm to 95 nm, or 65 nm to 90 nm.
  • One type of hollow inorganic particles may be included.
  • the particle size of the hollow inorganic particles is 40nm 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the refractive index of the low refractive index layer may be increased to increase the reflectance, and if it exceeds 100ä, the strength of the low refractive layer is weakened, scratch resistance may be lowered.
  • the average particle diameter difference between the average particle diameter of one hollow inorganic particle having a particle diameter of 40ä to 60ä and the average particle diameter of one hollow inorganic particle having a particle size of 6511111 to 10011111 is 60 ä, 7 ⁇ 1 to 4011111, or 8! ⁇ To 30 ⁇ 1. If the difference in particle size is too small or large, the reflectance of the portion where the low refractive index layer is damaged or deformed by external rubbing or friction may increase. With respect to 100 parts by weight of the binder resin, the content of the two or more hollow inorganic particles may be 30 to 500 parts by weight, 50 to 450 parts by weight, or 60 to 400 parts by weight. If the content of the at least two hollow inorganic particles is less than 30 parts by weight, the reflectance of the low refractive index layer may be increased. As a result, the reflectance of the damaged or deformed portion may increase.
  • each of the hollow inorganic particles may contain at least one reactive functional group selected from the group consisting of (meth) acrylate group, epoxide group, vinyl group (1 1) and thiol group 03 ⁇ 4 ⁇ 1) on the surface.
  • the low refractive index layer may have a higher degree of crosslinking, thereby effectively suppressing the increase in reflectance of the part damaged or deformed by external rubbing or friction. It is possible to further improve the scratch resistance and antifouling.
  • the hollow inorganic particles may be coated on a surface thereof with a fluorine compound.
  • a fluorine-based compound When the surface of the hollow inorganic particles is coated with a fluorine-based compound, it is possible to lower the surface energy, thereby increasing the durability and scratch resistance of the low refractive layer.
  • Particle coating methods or polymerization methods commonly known as coating the fluorine-based compound on the surface of the hollow inorganic particle may be used without any significant limitation.
  • the hollow inorganic particles and the fluorine-based compound may be formed of water and a catalyst. In the presence of the sol-gel reaction can be bonded to the fluorine-based compound on the surface of the hollow inorganic particles through the hydrolysis and condensation reaction.
  • hollow inorganic particles include hollow silica particles.
  • the hollow silica is deposited on the surface in order to be more easily dispersed in an organic solvent. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • organic functional groups that can be substituted on the surface of the hollow silica particles are not particularly limited, and examples thereof include (meth) acrylate groups, vinyl groups, hydroxy groups, amine groups, allyl groups (1), epoxy groups, hydroxy groups, isocyanate groups, and amines.
  • a group or fluorine may be substituted on the hollow silica surface.
  • the low refractive index layer may have a refractive index of 1.2 to 1.55, 1.25 to 1.45, or 1.3 to 1.43.
  • Binder resin containing the copolymer of the (meth) acrylate type monomer and the polyfunctional (meth) acrylate type monomer containing a 5-6 functional (meth) acrylate type monomer; And two or more hollow inorganic particles dispersed in the binder resin and having different particle diameters.
  • the 2 to 4 functional (meth) acrylate monomers and the 5 to 6 functional (meth) acrylate monomers are 9: 1 to 6: 4, 8.5: 1.5 to 6.5: 3.5, or 8: 2 to Due to the crosslinking polymerization at a weight ratio of 7: 3, the degree of crosslinking of the copolymer is maximized and the free volume of the low refractive index layer containing the same (root ratio ⁇ 1111116) can be minimized. As a result, it is possible to prevent the increase in the reflectance of the part where external rubbing or friction is applied to the low refractive layer.
  • the weight ratio between the hollow inorganic particles having a particle size of 40ä to 60ä and the hollow ' inorganic particles having a particle size of 6511111 to 100ä is 7: 3 to 3: 7, 6: 4 to 4: 6, or 6.5 : 4.5 to 5: 5. If the weight ratio range is not satisfied, the arrangement of the hollow inorganic particles may be disturbed, and the average reflectance of the low refractive layer may increase due to external rubbing or friction.
  • the low refractive index layer may be obtained by applying a photopolymerizable coating composition comprising the copolymer and the hollow inorganic particles on a predetermined substrate and photopolymerizing the applied resultant.
  • the specific kind or thickness of the substrate is not particularly limited, and a substrate known to be used in the manufacture of a hard coating layer or an antireflection film may be used without any significant limitation.
  • Bar coating methods such as Meyer bar, gravure coating, 2 reverse reverse coating, vacuum s lot die coating and the like can be used.
  • the exposure dose is preferably 100 to 4,000 mJ / cin 2 when irradiated.
  • Exposure time is not specifically limited, either, The exposure apparatus used can be suitably changed according to the wavelength or exposure amount of irradiation light.
  • nitrogen purging may be performed to apply nitrogen atmospheric conditions.
  • the antireflection film may have an average reflectance in a wavelength range of 380 nm to 780 nm of less than 3%, 2.5% or less, or 2% or less.
  • the hard coating layer can be used without a large limitation to the conventional known hard coating layer.
  • Binder resin containing a photocurable resin and it may be a hard coating layer comprising organic or inorganic fine particles dispersed in the binder resin.
  • the low refractive index layer may be formed on one surface of the hard coating layer, and an additional functional layer may be further included between the low refractive layer and the hard coating layer.
  • the photocurable resin is a polymer resin polymerized by irradiation of light, for example, by irradiation of visible light or ultraviolet light, for example, a urethane acrylate oligomer, an epoxide acrylate oligomer, Reactive acrylate oligomer group consisting of polyester acrylate, and polyether acrylate; And dipentaerythritol nuxaacrylate, dipentaerythritol hydroxy pentaacrylate, pentaerythritol tetraacrylate, pentaerythritol triacrylate, trimethylene propyl triacrylate, propoxylated glycerol triacrylate, trimethylpropane ethoxy tri At least one member selected from the group of polyfunctional acrylate monomers consisting of acryl
  • the organic or inorganic fine particles are not specifically limited in particle size, for example, the organic fine particles may have a particle size of 1 to 10 / rni, the inorganic 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • Particles 500 1 ⁇ or 1ä to 300ä.
  • the organic or inorganic fine particles included in the hard coating layer are not limited.
  • the organic or inorganic fine particles may be organic fine particles made of acrylic resin, styrene resin, epoxide resin and nylon resin, or silicon oxide, It may be an inorganic fine particle consisting of titanium dioxide, indium oxide, tin oxide, zirconium oxide and zinc oxide.
  • the hard coating layer a binder resin of a photocurable resin; And an antistatic agent dispersed in the binder resin.
  • the antistatic agent may be a quaternary ammonium salt compound, a conductive polymer or a mixture thereof.
  • the quaternary ammonium salt compound may be a compound having one or more quaternary ammonium salt groups in a molecule, and may use a low molecular type or a polymer type without limitation.
  • the conductive polymer may be a low molecular type or a polymer type without limitation, the kind thereof may be conventional in the art to which the present invention pertains, and is not particularly limited.
  • Binder resin of the photopolymerizable resin; And the hard coating layer comprising an antistatic agent dispersed in the binder resin may further comprise at least one compound selected from the group consisting of alkoxy silane oligomer and metal alkoxide oligomer.
  • the alkoxy silane compound may be conventional in the art, but preferably tetramethoxysilane, tetraethoxysilane, tetraisopropoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methacryloxypropyl It may be at least one compound selected from the group consisting of trimethoxysilane, glycidoxypropyl trimethoxysilane and glycidoxypropyl triethoxysilane.
  • the metal alkoxide-based oligomer may be prepared through a sol-gel reaction of a composition comprising a metal alkoxide-based compound and water.
  • the sol-gel reaction can be carried out by a method similar to the method for producing an alkoxy silane oligomer described above.
  • the sol-gel reaction may be performed by diluting the metal alkoxide compound in an organic solvent and slowly dropping water.
  • the molar ratio (metal ion basis) of the metal alkoxide compound to water is in the range of 3 to 170. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the metal alkoxide-based compound may be at least one compound selected from the group consisting of titanium tetra-isopropoxide, zirconium isopropoxide and aluminum isopropoxide.
  • the anti-reflection film may further include a substrate bonded to the other surface of the hard coating layer.
  • the substrate may have a light transmittance of 90% or more and a haze of 1% or less.
  • the material of the substrate may be triacetyl cellulose, cycloolefin polymer, polyacrylate, polycarbonate, polyethylene terephthalate and the like.
  • the thickness of the base film may be 10 to 300_ in consideration of productivity, but is not limited thereto.
  • the anti-reflection film has a thickness of retardation (inside the cemetery) measured at wavelengths 400) 1111 to 80011111 of 3, 000 13 ⁇ 41 or more, or 5, 000 or more, or 5,000 11111 to 20,000 1 pad. It may further include a light transmissive substrate.
  • Such a light transmissive substrate include a uniaxially stretched polyethylene terephthalate film or a biaxially stretched polyethylene terephthalate film.
  • the anti-reflection film includes a light transmissive substrate having a retardation in the thickness direction measured at the wavelengths 40011111 to 800 TM of at least 3, 000 ⁇ , or at least 5, 000 11111, or at 5, 000 1ä to 20, 000 1ä.
  • the rainbow phenomenon due to the interference of visible rays may be alleviated as compared with the case of using a retardation of 3000 ⁇ or less.
  • Retardation in the thickness direction can be confirmed through a commonly known measuring method and measuring apparatus. For example, as a measuring apparatus of retardation of the thickness direction, the brand name "Exo-Cans" by the Tombstone company, etc. are mentioned.
  • the retardation of the thickness direction of the transparent base film was measured, and based on the obtained retardation immediate value (immediate value by automatic instantaneous (automatic calculation) of the instantaneous device) of the obtained thickness direction, It can be obtained by converting the retardation value per 10 ⁇ !
  • the size of the light transmissive substrate of the measurement sample is larger than that of the light metering portion (diameter: about 1011) of the stage of the measuring instrument. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the value of the "refractive index (589 nm) of the said light-transmissive base material" used for the measurement of retardation of the thickness direction is unburned containing the resin film of the same kind as the light-transmissive base material which forms the film used as the measurement object of retardation.
  • a polarizing plate including the anti-reflection film may be provided.
  • the polarizing plate may include a polarizing film and an antireflection film formed on at least one surface of the polarizing film.
  • the material and manufacturing method of the polarizing film are not particularly limited, and conventional materials and manufacturing methods known in the art may be used.
  • the polarizing film may be a polyvinyl alcohol polarizing film.
  • a protective film may be provided between the polarizing film and the antireflection film.
  • the protective film are not limited, and for example, C0P (cycloolef in polymer) film, acrylic film, TAC (tr i acetylcel lulose) film,
  • PEK polyethylene terephtalate film may be any one or more.
  • the protective film may be used as it is a substrate for forming a single coating layer in the production of the anti-reflection film.
  • the polarizing film and the anti-reflection film may be laminated by an adhesive such as an aqueous adhesive or a non-aqueous adhesive.
  • a display device including the anti-reflection film may be provided. Specific examples of the display device are not limited, and for example, a liquid crystal display device, 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • a device such as a plasma display device, an organic light emitting diode device, and the like.
  • the display device includes a pair of polarizing plates facing each other; A thin film transistor, a color filter, and a liquid crystal cell sequentially stacked between the pair of polarizing plates; And it may be a liquid crystal display device including a backlight unit.
  • the anti-reflection film may be provided on the outermost surface of the observer side or the backlight side of the display panel.
  • the anti-reflection film may be positioned on one surface of the polarizing plate relatively far from the backlight unit among the pair of polarizing plates.
  • the display apparatus may include a display panel, a polarizing film provided on at least one surface of the panel, and an antireflection film provided on an opposite side of the panel contacting the panel of the polarizing film.
  • an anti-reflection film having high mechanical properties such as high abrasion resistance and scratch resistance and an excellent anti-reflective property of a part damaged or deformed by an external rub or friction
  • an anti-reflection film and an anti-reflection film
  • a display device including the polarizing plate and the anti-reflection film.
  • the hard coating composition thus obtained was coated with a # 10 mayer bar on a triacetyl cellulose film and dried at 90 ° C. for 1 minute. This dried material was irradiated with ultraviolet light of 150 mJ / cin 2 to prepare a hard coating layer having a thickness of 4 ,.
  • the hard coating composition of Preparation Example 1 was coated with # 10 mayer bar on a PET film having a thickness of 80 iM and a retardation 10000 ⁇ and dried at 60 ° C. for 1 minute. This dried material was irradiated with ultraviolet light of 150 mJ / oif to prepare a hard coating layer having a thickness of 4 ⁇ !.
  • KY0EISHA salt type antistatic hard coating solution (50 wt% solids, product name: LJD-1000) was coated on a triacetyl cellulose film with # 10 mayer bar and dried at 90 ° C for 1 minute, then UV light of 150 mJ / cm 2 Irradiated to prepare a hard coating layer having a thickness of about 5.
  • Hollow silica nanoparticles (diameter: about 50) with respect to 100 parts by weight of the mixed binder of pentaerythritol triacrylate (PETA) and dipentaerythritol nuxaacrylate (DPHA) (mixing ratio of PETA: DPHA is 7: 3).
  • PETA pentaerythritol triacrylate
  • DPHA dipentaerythritol nuxaacrylate
  • PETA dipentaerythritol nuxaacrylate
  • MIBK methyl i sobutyl ketone
  • the photocurable coating composition was coated with a # 4 mayer bar to a thickness of about 110 to 120 nm, and dried and cured at 60 ° C. for 1 minute to prepare an antireflection film.
  • the dried coating was irradiated with ultraviolet rays of 252 mJ / cm 2 under nitrogen purge. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • Hollow silica nanoparticles (diameter: about 50) with respect to 100 parts by weight of the mixed binder of pentaerythritol triacrylate (PETA) and dipentaerythritol nuxaacrylate (DPHA) (mixing ratio of PETA: DPHA is 6: 4).
  • PETA pentaerythritol triacrylate
  • DPHA dipentaerythritol nuxaacrylate
  • the photocurable coating composition was coated with a # 4 mayer bar to a thickness of about 110 to 120 times, and dried and cured at 60 ° C. for 1 minute to prepare an antireflection film. At the time of curing, the dried coating was irradiated with ultraviolet light of 252 mJ / cuf under nitrogen purge.
  • Example 3
  • Hollow silica nanoparticles (diameter: about 50) with respect to 100 parts by weight of the mixed binder of pentaerythritol triacrylate (PETA) and dipentaerythritol nuxaacrylate (DPHA) (mixing ratio of PETA: DPHA is 7: 3).
  • PETA pentaerythritol triacrylate
  • DPHA dipentaerythritol nuxaacrylate
  • To 60 ran, 350 parts by weight of JGC catalyst and chemicals 100 parts by weight of solid silica nanoparticles (diameter: about 13 nm), 30 parts by weight of fluorine-based compound (F477, DIC), and an initiator (Irgacure 127,
  • Ciba 37 parts by weight was diluted in a MIBR (methyl isobutyl ketone) solvent to a solid content of 3.0% by weight to prepare a photocurable coating composition.
  • MIBR methyl isobutyl ketone
  • the photocurable coating composition was coated with a # 4 mayer bar to have a thickness of about 110 to 120 ran, and dried and cured at 60 ° C. for 1 minute to prepare an antireflection film. .
  • the dried coating was irradiated with ultraviolet light of 252 mJ / cuf under nitrogen purge.
  • PETA pentaerythritol triacrylate
  • DPHA dipentaerythritol nuxaacrylate
  • the photocurable coating composition was coated with a # 4 mayer bar to have a thickness of about 110 to 120 nm, and dried and cured at 60 ° C. for 1 minute to prepare an antireflection film. .
  • the dried coating was irradiated with ultraviolet light of 252 mJ / cuf under nitrogen purge.
  • Hollow silica nanoparticles (diameter: about 60 to 70) with respect to 100 parts by weight of the mixed binder of pentaerythritol triacrylate and dipentaerythritol nuxaacrylate (DPHA) (mixing ratio of PETA: DPHA is 7: 3) nm, manufactured by JGC catalyst and chemicals) 323.5 parts by weight, solid zirconia nanoparticles (diameter: about 15 nm) 125 parts by weight, fluorine-based compound (RS-90, DIC) 29.4 parts by weight, initiator (Irgacure 127, Ciba) 17.6
  • the weight part was diluted in a MIBK (methyl isobutyl ketone) solvent so as to have a solid concentration of 3.2% by weight to prepare a photocurable coating composition.
  • MIBK methyl isobutyl ketone
  • the photocurable coating composition was coated with a # 4 mayer bar to have a thickness of about 110 to 120, and dried and cured at 60 ° C. for 1 minute to prepare an antireflection film. At the time of curing, the dried coating was irradiated with ultraviolet light of 252 mJ / cuf under nitrogen purge.
  • Example 6
  • Trimethylolpropane triacrylate 01 Based on 100 parts by weight of the first hollow silica nanoparticles 0) 1 Measurement diameter: 58.2ä) 45 parts by weight of the second hollow silica nanoparticles (1) 1 Measurement diameter: 66.7 ⁇ ) 78 parts by weight, solid silica nanoparticles (diameter: about 1511111) 71 parts by weight, fluorine compound ⁇ 90, 1) 10 23 parts by weight, and initiator (1 301 127, (33 companies) 25 parts by weight, 0131 ⁇ 1 Urine 011 ⁇ 2) Solids concentration in solvent 3. Dilute to 1% by weight of photocurable coating 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • the composition was prepared.
  • the furnace was coated to a thickness of about 110 to 120, dried and cured at 601: for 1 minute. In the dried coating under a nitrogen purge at the time of the curing it was irradiated with ultraviolet rays of 252/2.
  • the mixing ratio of 100 parts by weight of the mixed binder of pentaerythritol triacrylate) and dipentaerythritol nuxaacrylate (8) is 8: 2).
  • the furnace was coated to a thickness of about 110 to 120 ä, dried and cured at 60 ° (for 1 minute) to prepare an antireflection film.
  • the dried coating was irradiated with ultraviolet rays of 252 ⁇ under nitrogen purge.
  • An antireflective film was prepared in the same manner as in Example 1 except that only a pentaerythritol triacrylate was used without using a mixed binder. Comparative Example 2
  • Pentaerythritol An antireflective film was prepared in the same manner as in Example 2 except that dipentaerythritol nuxaacrylate (X) was used at a mixing ratio of 5: 5. 2019/221573 1 »(: 1 ⁇ 1 ⁇ 2019/006006
  • An antireflective film was prepared in the same manner as in Example 3, except that pentaerythritol triacrylate ⁇ and dipentaerythritol nuxaacrylate (3 ⁇ 4h was used in a mixing ratio of 4: 6).
  • An antireflective film was prepared in the same manner as in Example 4 except that pentaerythritol triacrylate-myoxi and dipentaerythritol nuxaacrylate ( ⁇ 3 ⁇ 4 hours were used in a mixing ratio of 2: 8). 5
  • An antireflective film was prepared in the same manner as in Example 5 except that only dipentaerythritol nuxaacrylate (IX) was used without using a mixed binder. Comparative Example 6
  • the darkening treatment is performed to prevent light from penetrating the surface where the hard coating layer and the low refractive layer of the antireflection film obtained in Examples and Comparative Examples are not formed.
  • the reflectance was measured by using reflectance mode of Solidspec 3700 (UV-Vis spectrophotometer, Shimadzu) before and after friction test
  • the color coordinate value () of the low refractive layer was measured using a -2401PC Color Analysis program.
  • the color coordinate values of the low refractive layer were measured before the friction test was carried out, and the results are shown in “bV ′ of Table 1 below. Then, after performing the friction test, the color coordinate values were measured in the same manner as the method of measuring b * 0 for the low refractive layer, and the results are shown in "b '" in Table 1 below. In addition, the difference between the b * 0 and b * i was calculated, and the degree of change of the color coordinate values before and after the friction test is shown in "Ab * " in Table 1 below.
  • the steel wool of grade # 0000 was hung and reciprocated 10 times at a speed of 27 rpm to rub the surface of the antireflective film obtained in Examples and Comparative Examples. Thereafter, the maximum load at which one scratch or less of lcm or less observed with the naked eye was measured was measured, and the results are shown in Table 1 below.
  • Examples 1 to 7 show the degree of change of the average reflectance before and after the friction test (swimming ratio of 0.02%? Since the degree of change in color before and after the friction test is 0.3 or less, compared with Comparative Examples 1 to 6, it is possible to effectively increase the reflectance and change in color at the damaged / deformed portion due to the friction test. 2019/221573 1 »(: 1/10 ⁇ 019/006006

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Optical Elements (AREA)

Abstract

La présente invention concerne un film antireflet ayant des propriétés mécaniques, telles qu'une résistance à l'usure et aux rayures élevée, et d'excellentes propriétés optiques ; une plaque polarisante le comprenant ; et un dispositif d'affichage le comprenant.
PCT/KR2019/006006 2018-05-18 2019-05-14 Film antireflet, plaque polarisante et appareil d'affichage WO2019221573A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201980012904.7A CN111712534B (zh) 2018-05-18 2019-05-14 抗反射膜、偏光板和显示装置
US16/978,458 US11732142B2 (en) 2018-05-18 2019-05-14 Anti-reflective film, polarizing plate, and display apparatus
JP2020545503A JP7205815B2 (ja) 2018-05-18 2019-05-14 反射防止フィルム、偏光板、およびディスプレイ装置
EP19803464.7A EP3733745A4 (fr) 2018-05-18 2019-05-14 Film antireflet, plaque polarisante et appareil d'affichage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180057299 2018-05-18
KR10-2018-0057299 2018-05-18
KR10-2019-0055866 2019-05-13
KR1020190055866A KR102280262B1 (ko) 2018-05-18 2019-05-13 반사 방지 필름, 편광판 및 디스플레이 장치

Publications (1)

Publication Number Publication Date
WO2019221573A1 true WO2019221573A1 (fr) 2019-11-21

Family

ID=68540493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/006006 WO2019221573A1 (fr) 2018-05-18 2019-05-14 Film antireflet, plaque polarisante et appareil d'affichage

Country Status (1)

Country Link
WO (1) WO2019221573A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114514445A (zh) * 2020-03-16 2022-05-17 株式会社Lg化学 抗反射膜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060031941A (ko) * 2004-10-11 2006-04-14 제일모직주식회사 반사방지 필름의 고굴절층 코팅용 조성물
KR20130120223A (ko) * 2012-04-25 2013-11-04 주식회사 엘지화학 내찰상성이 우수한 반사 방지 필름 및 이의 제조 방법
KR20140006922A (ko) * 2011-04-26 2014-01-16 다이니폰 인사츠 가부시키가이샤 반사 방지 필름, 편광판 및 화상 표시 장치
KR20170021757A (ko) * 2015-08-18 2017-02-28 주식회사 엘지화학 저굴절층 및 이를 포함하는 반사 방지 필름
KR20170086477A (ko) * 2014-11-25 2017-07-26 도요보 가부시키가이샤 액정표시장치 및 편광판

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060031941A (ko) * 2004-10-11 2006-04-14 제일모직주식회사 반사방지 필름의 고굴절층 코팅용 조성물
KR20140006922A (ko) * 2011-04-26 2014-01-16 다이니폰 인사츠 가부시키가이샤 반사 방지 필름, 편광판 및 화상 표시 장치
KR20130120223A (ko) * 2012-04-25 2013-11-04 주식회사 엘지화학 내찰상성이 우수한 반사 방지 필름 및 이의 제조 방법
KR20170086477A (ko) * 2014-11-25 2017-07-26 도요보 가부시키가이샤 액정표시장치 및 편광판
KR20170021757A (ko) * 2015-08-18 2017-02-28 주식회사 엘지화학 저굴절층 및 이를 포함하는 반사 방지 필름

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114514445A (zh) * 2020-03-16 2022-05-17 株式会社Lg化学 抗反射膜

Similar Documents

Publication Publication Date Title
JP6607510B2 (ja) 光硬化性コーティング組成物、低屈折層および反射防止フィルム
KR101471692B1 (ko) 방현성 하드 코트 필름, 그것을 사용한 편광판 및 화상 표시 장치, 그리고 방현성 하드 코트 필름의 제조 방법
JP6732015B2 (ja) 反射防止フィルム
KR102280262B1 (ko) 반사 방지 필름, 편광판 및 디스플레이 장치
JP7191340B2 (ja) 反射防止フィルム、偏光板およびディスプレイ装置
EP3309222B1 (fr) Composition de revêtement photodurcissable, couche basse réfraction, et film antireflet
JP2006047504A (ja) 反射防止積層体
WO2019177271A1 (fr) Film antireflet, plaque polarisante, et appareil d'affichage
US11506820B2 (en) Anti-reflective film, polarizing plate, and display apparatus
JP6925692B2 (ja) 反射防止フィルム、偏光板およびディスプレイ装置
WO2019221573A1 (fr) Film antireflet, plaque polarisante et appareil d'affichage
JP2013156643A (ja) 光学積層体
JP2010079111A (ja) 光学積層体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19803464

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019803464

Country of ref document: EP

Effective date: 20200728

ENP Entry into the national phase

Ref document number: 2020545503

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE