WO2011031087A2 - Film antireflet, et plaque de polarisation et écran le comprenant - Google Patents

Film antireflet, et plaque de polarisation et écran le comprenant Download PDF

Info

Publication number
WO2011031087A2
WO2011031087A2 PCT/KR2010/006169 KR2010006169W WO2011031087A2 WO 2011031087 A2 WO2011031087 A2 WO 2011031087A2 KR 2010006169 W KR2010006169 W KR 2010006169W WO 2011031087 A2 WO2011031087 A2 WO 2011031087A2
Authority
WO
WIPO (PCT)
Prior art keywords
glare
film
reflectance
particles
parts
Prior art date
Application number
PCT/KR2010/006169
Other languages
English (en)
Korean (ko)
Other versions
WO2011031087A3 (fr
Inventor
홍승모
임거산
김기용
Original Assignee
동우화인켐 주식회사
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
Application filed by 동우화인켐 주식회사 filed Critical 동우화인켐 주식회사
Priority to CN201080050501.0A priority Critical patent/CN102792191B/zh
Publication of WO2011031087A2 publication Critical patent/WO2011031087A2/fr
Publication of WO2011031087A3 publication Critical patent/WO2011031087A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/133502—Antiglare, refractive index matching layers

Definitions

  • the present invention relates to an antiglare film, a polarizing plate having the same, and a display device.
  • the anti-glare film has a function of reducing reflection of external light by using diffuse reflection by surface protrusions, and various display panels such as liquid crystal display (LCD), plasma display (PDP), CRT, and electroluminescent display (EL). It is used for the purpose of preventing the reduction of the contrast due to the reflection of external light or the deterioration of the visibility of the display due to the reflection of the image.
  • LCD liquid crystal display
  • PDP plasma display
  • EL electroluminescent display
  • the anti-glare film is generally formed by coating an anti-glare coating composition containing a filler such as silica or resin particles on the surface of the transparent substrate.
  • a filler such as silica or resin particles
  • surface unevenness is formed on the surface of the anti-glare layer by agglomeration of silica or the like, and the unevenness is formed on the surface by controlling the thickness of the filler.
  • the conventional anti-glare film has a disadvantage in that the diffuse reflection of external light is severe when the surface irregularities are severe, and the anti-glare property is excellent, but the contrast ratio of the image displayed is reduced due to the lack of blackness.
  • the surface unevenness of the conventional antiglare film is weak, the external light cannot be sufficiently diffused, and thus the antiglare property inherent in the antiglare film is inferior, and thus, the visibility of the displayed screen is greatly deteriorated.
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide an anti-glare film which is excellent in anti-glare property and can maintain high blackness.
  • Another object of the present invention is to provide a polarizing plate and a display device including the anti-glare film.
  • the present invention for achieving the above object is an anti-glare film comprising an anti-glare layer formed by coating an anti-glare coating composition on one side or both sides of the transparent substrate, the anti-glare film is represented by the following equation Provided is an anti-glare film characterized by having a scattering reflectance Rd of 0.5% or less.
  • the total reflectance is the total ratio of the reflected light reflected in all directions
  • the positive reflectance is the ratio of the reflected light that is specularly reflected at the same angle as the incident angle.
  • the anti-glare coating composition is composed of a curable resin and light-transmitting particles, and the anti-glare layer preferably comprises a lower region in which the light-transmitting particles are present and an upper region in which the light-transmitting particles are not present.
  • the upper region where the light-transmitting particles do not exist is preferably 0.3um ⁇ 15um in thickness.
  • the said translucent particle is 1-10 micrometers in average particle diameter.
  • the light-transmitting particles may be contained 0.5 to 20 parts by weight based on 100 parts by weight of the total anti-glare coating composition.
  • the said anti-glare film is 150 or less of reflection clarity.
  • the anti-glare coating composition may further include conductive fine particles.
  • the anti-glare film may further include a low refractive index layer having a refractive index of 1.25 to 1.45.
  • the present invention provides a polarizing plate comprising the anti-glare film described above.
  • this invention also provides the display apparatus characterized by including the anti-glare film mentioned above.
  • the anti-glare film according to the present invention described above exhibits low reflection clarity and excellent blackness.
  • the anti-glare film according to the present invention can be usefully applied to the polarizing plate and the display device.
  • the antiglare film according to the present invention comprises a transparent base material and an antiglare layer formed by coating an antiglare coating composition on one or both surfaces of the transparent base material.
  • the anti-glare film preferably has a scattering reflectance (Rd) of 0.5% or less represented by Equation 1 below.
  • the total reflectance is the total ratio of the reflected light reflected in all directions
  • the positive reflectance is the ratio of the reflected light that is specularly reflected at the same angle as the incident angle.
  • the scattering reflectivity is defined as a value obtained by subtracting the positive reflectance Rt, which is the ratio of the reflected light reflected at the same angle as the incident angle, from the total reflectance Rt, which is the total ratio of the reflected light reflected in all directions.
  • small scattered reflectance means that the ratio of the light reflected in the specular reflection direction is large, so the diffuse reflection is not severe. This means that blackness of the antiglare film does not deteriorate even when external light is reflected.
  • the scattering reflectance is large, the ratio of the light reflected in the specular reflection direction is small, so that the diffuse reflection is severe, and thus blackness is deteriorated.
  • the scattering reflectance of the antiglare film is preferably 0.5% or less, and more preferably 0.2% or less.
  • Scattering reflectance described in the present invention may exhibit a more precise black color and anti-glare than the haze rate (%) that typically represents the optical properties of the anti-glare film. This differs in the measuring principle and method. That is, in the case of the haze rate (%) normally measured in an anti-glare film, it is generally measured in a transmission mode, and the formula for calculating a haze rate is represented by the scattering transmittance of the total transmittance. In this equation, the scattering transmittance is obtained by reflecting light scattered at an angle defined by JIS or the like to the integrating sphere.
  • the scattered transmitted light of the haze rate is excessively pulled out beyond a certain angle, the area transmitted straight, causing a difference with the luminous.
  • the scattering reflectance mentioned in the present invention since the scattering reflection data includes all values except the specular angle, the black and the anti-glare property can be measured more precisely.
  • the scattering reflectance is not easy to appear less than 0.5%.
  • the antiglare layer when the antiglare layer is formed to achieve this, a special method is used to divide the lower region in which the light-transmitting particles are present and the upper region in which the light-transmitting particles are not present.
  • Various methods can be used to achieve this.
  • the above structure can be obtained by secondary coating the transparent coating liquid containing no particles on the top.
  • the solvent evaporation process is delayed, so that the structure can be achieved by the method of sedimenting the light-transmitting particles in the coating layer.
  • a method of delaying the solvent evaporation process there is a method of using a high boiling point solvent, a method of reducing the amount of drying air and a temperature.
  • a method of guiding the translucent particles under the coating layer may be used. After the light-transmitting particles contain a substance that reacts with a magnetic field or an electric field, the anti-glare coating solution is applied, and then the magnetic or electric field is applied to guide the particles to the bottom of the coating layer, thereby achieving the above structure.
  • the transparent substrate can be used as long as the plastic film having transparency.
  • the transparent substrate include cycloolefin derivatives having a unit of a monomer including a cycloolefin such as norbornene or a polycyclic norbornene monomer, cellulose (diacetyl cellulose, triacetyl cellulose, acetyl cellulose butyrate and isobutyl Ester cellulose, propionyl cellulose, butyryl cellulose, acetyl propionyl cellulose) ethylene-vinyl acetate copolymer, polycycloolefin, polyester, polystyrene, polyamide, polyetherimide, polyacryl, polyimide, polyethersulfone, poly Sulfone, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polyether ketone, polyether ether ketone, polyether
  • a uniaxial or biaxially stretched polyester film having excellent transparency and heat resistance a cycloolefin-based derivative film, a polymethyl methacrylate film, and transparency capable of coping with the enlargement of the film, having excellent transparency and heat resistance, among the transparent substrates exemplified above.
  • the triacetyl cellulose and the isobutyl ester cellulose films are more preferable in that they are not optically anisotropic.
  • the thickness of the said transparent base material is not specifically limited, It is preferable that it is 8-1000 micrometers, and it is more preferable that it is 40-100 micrometers. If the thickness of the transparent base film is 8 ⁇ m or less, the film strength is lowered, resulting in poor workability. If the thickness of the transparent base film is 1000 ⁇ m or more, transparency or the weight of the polarizing plate is increased.
  • the antiglare layer is formed using an antiglare coating composition.
  • the anti-glare coating composition includes a curable resin and light transmitting particles, and the anti-glare layer includes a lower region in which the light-transmitting particles are present and an upper region in which the light-transmitting particles are not present.
  • said translucent particle In general, if it is a particle
  • Examples of the light-transmitting particles include silica particles, silicone resin particles, melamine resin particles, acrylic resin particles, acrylic-styrene resin particles, polycarbonate resin particles, polyethylene resin particles, vinyl chloride resin particles, and the like. can do.
  • the light-transmitting particles exemplified above may be used alone or in combination of two or more thereof.
  • the average particle diameter of the said translucent particle is 1-10 micrometers. If the average particle diameter of the light-transmitting particles is less than 1 ⁇ m difficult to form irregularities on the surface of the anti-glare, the anti-glare is low, when it exceeds 10 ⁇ m there is a disadvantage that the surface of the anti-glare layer is rough and poor visibility.
  • the light-transmitting particles are preferably contained in 0.5 to 20 parts by weight based on 100 parts by weight of the total anti-glare coating composition. If the light-transmitting particles are less than 0.5 parts by weight based on the above criteria, the anti-glare property is inferior, and if it exceeds 20 parts by weight, the whitening of the anti-glare layer becomes severe.
  • the curable resin may include a polymerizable compound, a photoinitiator, and a solvent.
  • the polymerizable compound preferably contains a compound having a radically polymerizable functional group which can be cured by a photoinitiator, in particular a polyfunctional (meth) acrylate.
  • multifunctional (meth) acrylate examples include dipentaerythritol hexa (meth) acrylate, dipentaerythritol penta (meth) acrylate, pentaerythritol tetra (meth) acrylate, and ditrimethylolpropane tetra (meth) acrylic acid.
  • the polymerizable compound is not particularly limited, but is preferably contained 10 to 90 parts by weight based on 100 parts by weight of the total anti-glare coating composition.
  • the content of the polymerizable compound is included in the range of 10 to 90 parts by weight based on the above standards it is preferable because it shows excellent anti-glare property.
  • the photoinitiator may be used without limitation as long as it is used in the art.
  • Specific examples of the photoinitiator include 2-methyl-1- [4- (methylthio) phenyl] 2-morpholinepropanone-1, diphenyl ketone benzyl dimethyl ketal, 2-hydroxy-2-methyl-1-phenyl- 1-one, 4-hydroxycyclophenylketone, 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 and 1-hydroxycyclohexylphenyl ketone can be used.
  • the photoinitiator is preferably included 0.1 to 10 parts by weight based on 100 parts by weight of the total anti-glare coating composition of the present invention.
  • the photoinitiator is contained less than 0.1 parts by weight, the curing rate is slow, and when it is included more than 10 parts by weight, the polymer chain may be shortened due to overcuring and cracks may occur in the antiglare layer.
  • a photostimulant may be used together with the photoinitiator.
  • the photo-stimulating agent for example, triethylamine, diethylamine, methyl diethanolamine, ethanolamine, 4-dimethylamino-benzoic acid, isoamyl-4-dimethylaminobenzoate and the like can be used.
  • the amount of the photostimulant is not necessarily limited, 0.5 to 50 parts by weight may be added based on 100 parts by weight of the total amount of the photoinitiator.
  • the solvent can be used without limitation to those known in the art.
  • Specific examples of the solvent include alcohols (methanol, ethanol, isopropanol, butanol, methoxyethanol, methoxypropanol, etc.) or ketones (methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, diethyl ketone, dipropyl ketone). Etc.) may be preferably used.
  • the solvent is preferably included 0.1 to 80 parts by weight based on 100 parts by weight of the antiglare coating composition.
  • the content of the solvent is less than 0.1 parts by weight, the workability is high due to the high viscosity, and when it exceeds 80 parts by weight, it takes a lot of time in the drying and curing process, and there is a disadvantage in economy.
  • the curable resin may further be used an organic-inorganic hybrid silica commonly used in the art.
  • organic-inorganic hybrid silica include those produced by chemically bonding a polyfunctional silane compound containing a polyfunctional (meth) acrylate to a hydroxy group on a silica surface.
  • the organic-inorganic hybrid silica is not limited, but it is preferable to use 5 to 50 parts by weight based on 100 parts by weight of the antiglare coating composition.
  • the organic-inorganic hybrid silica is added within the above range, there is an advantage of reducing curling of the coating film by reducing shrinkage due to curing.
  • the curable resin may further include conductive fine particles to impart an antistatic function to the antiglare coating composition.
  • the conductive fine particles are conductive metal fine particles such as ATO, ITO, SnO 2 , Sb 2 O 5 , I 2 O 3 , Au, In 2 O 3 or conductive such as polythiophene, polyacetylene, polyaniline, polypyrrole Polymers may additionally be used.
  • the conductive fine particles may be prepared by chemically bonding a multifunctional silane compound containing a polyfunctional (meth) acrylate on the surface.
  • the conductive fine particles are not particularly limited but are preferably included in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the total anti-glare coating composition.
  • the content of the conductive fine particles is less than 0.5 parts by weight based on the above standard, the antistatic function is not exerted, and when the content exceeds 10 parts by weight, the transmittance is lowered.
  • the curable resin according to the present invention may additionally include antioxidants, UV absorbers, light stabilizers, thermal polymerization inhibitors, labelling agents, surfactants, lubricants, antifouling agents and the like commonly used in anti-glare coating composition.
  • the anti-glare layer is formed by coating the anti-glare coating composition described above on a transparent substrate.
  • the coating of the anti-glare coating composition may be coated by a suitable method such as die coater, air knife, reverse roll, spray, blade, casting, gravure, micro gravure or spin coating.
  • the coating thickness of the said anti-glare coating composition is not necessarily limited, it is usually 3-50 micrometers, Preferably it is 5-40 micrometers, More preferably, it is 5-35 micrometers.
  • the anti-glare layer includes a lower region in which the transparent particles are present and an upper region in which the transparent particles are not present.
  • the upper region where no translucent particles are present may be prepared, for example, by coating the anti-glare coating composition on a transparent substrate and leaving it for 10 seconds to 10 minutes before drying to allow the translucent particles to settle by gravity and then harden. .
  • the upper region where the light-transmissive particles do not exist is coated with the anti-glare coating composition on a transparent substrate, and then dried and cured, and the composition except for the light-transmissive particles is overcoated, ie, cured resin composition, and then dried. It can be prepared by curing.
  • the upper region where the light-transmitting particles do not exist is preferably 0.3um ⁇ 15um in thickness. If the thickness of the upper region where the light-transmitting particle is not present is less than 0.3um, the surface irregularities caused by the particles are prominent, and the scattering reflection is increased. As a result, the anti-glare property is excellent, but the black color is greatly reduced. Surface irregularities caused by the particles are completely disappeared, there is a problem that the anti-glare performance is extremely reduced.
  • the anti-glare coating composition applied on the transparent substrate is dried by evaporating the volatiles for 10 seconds to 2 hours, more preferably 30 seconds to 1 hour at a temperature of 30 to 150 °C. After curing by irradiation with UV light. It is preferable that it is about 0.01-10J / cm ⁇ 2>, and, as for the irradiation amount of the said UV light, it is more preferable that it is 0.1-2J / cm ⁇ 2>.
  • the antiglare film may further include a low refractive layer formed on the antiglare layer.
  • the low refractive index layer may be formed using a composition for forming a low refractive layer that is generally used in the art, preferably the composition for forming the low refractive layer may be made of fluorine, silica, or porous.
  • the low refractive index layer preferably has a range of 1.25 to 1.45 at the refractive index 25 °C.
  • the refractive index of the low refractive index layer is lower than 1.25, the strength at the time of coating is weak, and when the refractive index is higher than 1.45, the difference in refractive index with the antiglare coating layer is not large and the antireflection effect is not sufficiently exhibited.
  • the anti-glare film according to the present invention described above has a thickness of 0.3 ⁇ m to 15 ⁇ m in the anti-glare layer in which no light-transmitting particles are present, and the reflection sharpness is maintained at 150 or less by the light-transmissive particles, and the surface irregularities are greatly reduced.
  • the scattering reflectance can be reduced to 0.5% or less. Therefore, the anti-glare film according to the present invention can obtain excellent anti-glare, excellent reflection clarity and excellent blackness.
  • the reflection sharpness is a numerical value representing the sharpness of an image when external light is reflected and is measured according to the method specified in JIS K 7105.
  • the sum of the image sharpness measured about 0.5 mm, 1 mm, and 2 mm each slit is made into reflection sharpness.
  • the image sharpness for each slit is at most 100 and the sum of the reflected sharpness cannot exceed 300.
  • Reflective sharpness is a numerical value exhibited by complex effects such as scattering and surface shape by particles used, and as a result of visibility evaluation of various films, it is preferable to visually use the reflective sharpness of 150 or less.
  • the present invention provides a polarizing plate provided with the antiglare film.
  • the polarizing plate is formed by laminating the antiglare film according to the present invention on at least one surface of the general flat plate
  • the general polarizer is not particularly limited and various kinds may be used.
  • a dichroism such as iodine or a dichroic dye is applied to a hydrophilic polymer film such as a polyvinyl alcohol-based (PVA) film or an ethylene-vinyl acetate (EVA) copolymerized partially saponified film which gives a polarizing function.
  • PVA polyvinyl alcohol-based
  • EVA ethylene-vinyl acetate copolymerized partially saponified film which gives a polarizing function.
  • polyene-based oriented films such as a film obtained by adsorbing a substance and being uniaxially stretched, a dehydration product of polyvinyl alcohol (PVA), and a dehydrochlorination product of polyvinyl chloride.
  • the polarizing plate which consists of dichroic substances, such as a polyvinyl alcohol-type film and iodine, is preferable.
  • the present invention also provides a display device provided with the antiglare film.
  • the display device excellent in a black color can be manufactured by embedding the polarizing plate with an anti-glare film of this invention in a display device.
  • the anti-glare film of this invention can also be made to adhere to the window of a display apparatus.
  • Anti-glare film of the present invention is reflective, transmissive, semi-transmissive LCD or TN (Twisted Nematic) type, STN (Super Twisted Nematic) type, OCB (Optical Compensation Bend) type, HAN type, VA (Vertical Alignment) type, IPS ( It can be preferably used for LCDs of various driving methods such as In Plain Switching).
  • the anti-glare film of the present invention can be preferably used for various display devices such as a plasma display, a field emission display, an organic EL display, an inorganic EL display, and an electronic paper.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then curable resin comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. (DN-0081, manufactured by JSR) was mixed with 89.5 parts by weight and stirred for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • a silicone resin particle (Tospearl145, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 4.5 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then cured, comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. It was mixed with 89.5 parts by weight of the resin (DN-0081, manufactured by JSR) and stirred for 1 hour. The anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • TAC Triacetate Cellulose
  • silicone resin particles (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m in 6.40 parts by weight of methyl ethyl ketone
  • the polyfunctional (meth) acryl on the surface as a polymerizable compound, a solvent, an initiator, and conductive fine particles is dispersed. It was mixed with 92.17 parts by weight of curable resin (EC190-03, manufactured by Kriya) comprising ATO fine particles having a rate, followed by stirring for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • a coating of a curable resin (EC190-03, manufactured by Kriya) comprising a polymerizable compound, a solvent, an initiator, and ATO fine particles having a polyfunctional (meth) acrylate on the surface thereof is applied on the first coating layer.
  • a curable resin EC190-03, manufactured by Kriya
  • ATO fine particles having a polyfunctional (meth) acrylate on the surface thereof is applied on the first coating layer.
  • a silicone resin particle (Tospearl145, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 4.5 ⁇ m was added to 6.40 parts by weight of methyl ethyl ketone, and dispersed therein, and then multifunctional (meth) on the surface as a polymerizable compound, a solvent, an initiator, and conductive fine particles. It was mixed with 92.17 parts by weight of curable resin (EC190-03, manufactured by Kriya) comprising ATO fine particles having an acrylate, followed by stirring for 1 hour.
  • curable resin EC190-03, manufactured by Kriya
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C. for 1 minute, and cured at 700 mJ / cm 2 to form a primary coating layer.
  • a coating of a curable resin (EC190-03, manufactured by Kriya) comprising a polymerizable compound, a solvent, an initiator, and ATO fine particles having a polyfunctional (meth) acrylate on the surface thereof is applied on the first coating layer.
  • a curable resin EC190-03, manufactured by Kriya
  • an antiglare film having a scattering reflectance of 0.13% was prepared such that the thickness of the region having no translucent particles in the antiglare layer was 3 ⁇ m.
  • the scattering reflectance was measured by the method described in the following Experimental Example.
  • silicone resin particles (Tospearl45, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 4.5 um was added to 8.25 parts by weight of PGMEA, and then dispersed, followed by including a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. It was mixed with 89.5 parts by weight of the curable resin (DN-0081, manufactured by JSR), and stirred for 1 hour.
  • the anti-glare coating composition obtained by the stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, slowly dried at room temperature for 10 minutes, and then completely dried for 2 minutes at 100 ° C., and then 700 mJ / By hardening to 2 cm ⁇ 2>, the anti-glare film of 0.4% of scattering reflectance was produced so that the thickness of the area
  • the scattering reflectance was measured by the method described in the following Experimental Example.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m is dispersed in 8.25 parts by weight of PGMEA, and then comprises a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. It was mixed with 89.5 parts by weight of curable resin (DN-0081, manufactured by JSR) and stirred for 1 hour.
  • DN-0081 curable resin
  • the anti-glare coating composition obtained by the stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, slowly dried at room temperature for 10 minutes, and then completely dried for 2 minutes at 100 ° C., and then 700 mJ / By curing to 2 cm 2, the antiglare film having a scattering reflectance of 0.3% was prepared so that the thickness of the region without translucent particles in the antiglare layer was 1.5 ⁇ m.
  • the scattering reflectance was measured by the method described in the following Experimental Example.
  • silicone resin particles (Tospearl20, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 2 ⁇ m are dispersed in 8.25 parts by weight of PGMEA, and then include a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. It was mixed with 89.5 parts by weight of curable resin (DN-0081, manufactured by JSR) and stirred for 1 hour.
  • the anti-glare coating composition obtained by the stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, slowly dried at room temperature for 10 minutes, and then completely dried for 2 minutes at 100 ° C., and then 700 mJ / By curing to 2 cm 2, an antiglare film having a scattering reflectance of 0.25% was prepared such that the thickness of the region having no translucent particles in the antiglare layer was 2 ⁇ m.
  • the scattering reflectance was measured by the method described in the following Experimental Example.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then curable resin comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. (DN-0081, manufactured by JSR) was mixed with 89.5 parts by weight and stirred for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then curable resin comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. (DN-0081, manufactured by JSR) was mixed with 89.5 parts by weight and stirred for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C. for 1 minute, and cured at 700 mJ / cm 2 to form a primary coating layer.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then curable resin comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. (DN-0081, manufactured by JSR) was mixed with 89.5 parts by weight and stirred for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a myer bar, immediately dried at 70 ° C. for 1 minute, and then cured at 700 mJ / cm 2 to obtain an anti-glare film having a scattering reflectance of 1.52%.
  • the scattering reflectance was measured by the method described in the following Experimental Example.
  • a silicone resin particle (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m was dispersed in 8.25 parts by weight of methyl ethyl ketone, and then curable resin comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica. (DN-0081, manufactured by JSR) was mixed with 89.5 parts by weight and stirred for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • a curable resin (DN-0081, manufactured by JSR) composition comprising a polymerizable compound, a solvent, an initiator, and an organic-inorganic hybrid silica was coated on the first coating layer using a myer bar, so that the resin area without particles was 0.2 ⁇ m.
  • silicone resin particles (Tospearl30, manufactured by Toshiba Silicone Co., Ltd.) having an average particle diameter of 3 ⁇ m in 6.40 parts by weight of methyl ethyl ketone
  • the polyfunctional (meth) acryl on the surface as a polymerizable compound, a solvent, an initiator, and conductive fine particles is dispersed. It was mixed with 92.17 parts by weight of curable resin (EC190-03, manufactured by Kriya) comprising ATO fine particles having a rate, followed by stirring for 1 hour.
  • the anti-glare coating composition obtained by stirring was applied on a transparent substrate film (80 ⁇ m, TAC; Triacetate Cellulose) with a meyer bar, dried at 70 ° C.
  • a coating of a curable resin (EC190-03, manufactured by Kriya) comprising a polymerizable compound, a solvent, an initiator, and ATO fine particles having a polyfunctional (meth) acrylate on the surface thereof is applied on the first coating layer.
  • the final anti-glare film having a scattering reflectance of 1.13% was prepared so that the resin-free region was 0.2 ⁇ m. The scattering reflectance was measured by the method described in the experimental example below.
  • the anti-glare film prepared in Examples 1 to 11 and Comparative Examples 1 to 4 were evaluated for total reflectance, forward reflectance, scattering reflectance, reflection sharpness, anti-glare property, and black sensation in the following manner, and the results are shown in Table 1 to Table 1 below. 3 is shown.
  • the total reflectance was measured using an integral sphere spectrophotometer (CM-3700d, manufactured by Konica Minolta).
  • the positive reflectance was measured using the reflectance measuring instrument (UV-2450, the Shimadzu Corporation make).
  • the reflection sharpness of the antiglare film was measured using a sharpness measuring instrument (ICM-1T, manufactured by Suga Corporation, Japan).
  • the anti-glare film was bonded to the black acrylic plate using a pressure-sensitive adhesive and then reflected by a three-wavelength stand light to evaluate the anti-glare property so that the shape of the stand light was clearly seen.
  • Anti-glare ⁇ The shape is clumped so that the boundary of light cannot be drawn in a straight line
  • Anti-glare ⁇ Can draw light lines in a straight line
  • Anti-glare X The shape of the stand light is clearly visible
  • the antiglare film was bonded to the black acrylic plate using an adhesive, and then the light of the three wavelength stand was reflected to evaluate the blackness of the film visually.
  • Example 1 Example 2
  • Example 3 Example 4 Total reflectance (%) 4.45 4.43 4.55 4.54 Positive reflectance (%) 4.33 4.32 4.41 4.41 Scattering reflectance (%) 0.12 0.11 0.14 0.13 Black ⁇ ⁇ ⁇ ⁇ Reflection sharpness 130.2 60.4 121.4 40.3 Anti-glare ⁇ ⁇ ⁇ ⁇
  • Example 5 Example 6
  • Example 7 Example 8
  • Example 10 Example 11 Total reflectance (%) 4.45 4.44 4.46 4.43 4.42 4.43 4.45 Positive reflectance (%) 4.05 4.14 4.21 4.15 4.35 4.34 4.30 Scattering reflectance (%) 0.40 0.30 0.25 0.28 0.07 0.09 0.15 Black ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇

Abstract

La présente invention concerne un film antireflet, et une plaque de polarisation et un écran comprenant le film antireflet formé par application, sur un matériau de base transparent, d'une composition de revêtement antireflet qui comprend des composés polymérisables, une résine durcissable comprenant un photoinitiateur et un solvant, et des particules transparentes. Selon la présente invention, le film antireflet est placé sur le côté avant de divers écrans, et ajuste la diffusion de la lumière reflétée sur les écrans, réalisant ainsi un excellent effet antireflet et un contraste élevé. Par conséquent, puisque l'invention maintient les images intrinsèques nettes des écrans, l'invention peut utilement être appliquée à une plaque de polarisation et à un écran.
PCT/KR2010/006169 2009-09-10 2010-09-10 Film antireflet, et plaque de polarisation et écran le comprenant WO2011031087A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201080050501.0A CN102792191B (zh) 2009-09-10 2010-09-10 防眩薄膜、具有该防眩薄膜的偏光板及显示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0085297 2009-09-10
KR1020090085297A KR20110027283A (ko) 2009-09-10 2009-09-10 방현 필름, 이를 구비한 편광판 및 표시 장치

Publications (2)

Publication Number Publication Date
WO2011031087A2 true WO2011031087A2 (fr) 2011-03-17
WO2011031087A3 WO2011031087A3 (fr) 2011-08-04

Family

ID=43732964

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/006169 WO2011031087A2 (fr) 2009-09-10 2010-09-10 Film antireflet, et plaque de polarisation et écran le comprenant

Country Status (3)

Country Link
KR (1) KR20110027283A (fr)
CN (1) CN102792191B (fr)
WO (1) WO2011031087A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798907A (zh) * 2011-05-27 2012-11-28 东友精细化工有限公司 防眩薄膜、以及使用该薄膜的偏光板和显示装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6837460B2 (ja) * 2017-10-05 2021-03-03 住友化学株式会社 光学部材の製造方法及び製造装置
JP7428378B2 (ja) 2020-04-01 2024-02-06 株式会社レニアス 透明樹脂板

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007057612A (ja) * 2005-08-22 2007-03-08 Fujifilm Corp 防眩性反射防止フィルム及びその製造方法、該防眩性反射防止フィルムを用いた偏光板、並びに該偏光板を用いた液晶表示装置及び液晶表示装置
JP2007163971A (ja) * 2005-12-15 2007-06-28 Fujifilm Corp 反射防止フィルム、並びにそれを用いた偏光板及び液晶表示装置
JP2009086495A (ja) * 2007-10-02 2009-04-23 Konica Minolta Opto Inc 光学フィルム、偏光板および画像表示装置
WO2009107544A1 (fr) * 2008-02-26 2009-09-03 住友化学株式会社 Film antireflet, plaque de polarisation antireflet et dispositif d'affichage d'images

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100397099C (zh) * 2002-11-25 2008-06-25 富士胶片株式会社 防反射薄膜、偏振片和液晶显示器
CN100476455C (zh) * 2004-12-22 2009-04-08 日东电工株式会社 防眩性硬涂薄膜及其制造方法
CN101324677A (zh) * 2007-03-14 2008-12-17 索尼株式会社 防眩光膜的制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007057612A (ja) * 2005-08-22 2007-03-08 Fujifilm Corp 防眩性反射防止フィルム及びその製造方法、該防眩性反射防止フィルムを用いた偏光板、並びに該偏光板を用いた液晶表示装置及び液晶表示装置
JP2007163971A (ja) * 2005-12-15 2007-06-28 Fujifilm Corp 反射防止フィルム、並びにそれを用いた偏光板及び液晶表示装置
JP2009086495A (ja) * 2007-10-02 2009-04-23 Konica Minolta Opto Inc 光学フィルム、偏光板および画像表示装置
WO2009107544A1 (fr) * 2008-02-26 2009-09-03 住友化学株式会社 Film antireflet, plaque de polarisation antireflet et dispositif d'affichage d'images

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798907A (zh) * 2011-05-27 2012-11-28 东友精细化工有限公司 防眩薄膜、以及使用该薄膜的偏光板和显示装置

Also Published As

Publication number Publication date
CN102792191A (zh) 2012-11-21
CN102792191B (zh) 2015-05-20
KR20110027283A (ko) 2011-03-16
WO2011031087A3 (fr) 2011-08-04

Similar Documents

Publication Publication Date Title
US9097829B2 (en) Backlight unit with patterned light guide panel
WO2018080036A1 (fr) Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant
KR20210143822A (ko) 반사 방지용 원편광판 및 그것을 이용한 화상 표시 장치
KR20110126921A (ko) 편광판 및 표시 장치
WO2019168345A1 (fr) Film de compensation d'angle de visualisation, plaque de polarisation comprenant ce dernier et un dispositif d'affichage comprenant ce dernier
WO2011031087A2 (fr) Film antireflet, et plaque de polarisation et écran le comprenant
WO2014051303A1 (fr) Film antireflet et plaque polarisante et dispositif d'affichage l'utilisant
WO2016104976A1 (fr) Feuille optique, et plaque de polarisation et afficheur à cristaux liquides comportant cette feuille optique
KR20120024211A (ko) 방현 필름, 이를 구비한 편광판 및 표시 장치
WO2020101396A1 (fr) Stratifié optique, plaque polarisante et dispositif d'affichage
KR102313377B1 (ko) 눈부심 방지 필름 및 디스플레이 장치
JP2003075603A (ja) 反射防止ハードコートシートおよび光学素子、画像表示装置
WO2016085072A1 (fr) Composition de couche de protection de polariseur, couche de protection de polariseur fabriquée à partir de celle-ci, plaque polarisante comprenant ladite couche et dispositif d'affichage optique comprenant celle-ci
WO2021066401A1 (fr) Film polarisant de type extrusion à l'état fondu
WO2010151036A2 (fr) Film antireflet ainsi que plaque de polarisation et dispositif d'affichage comprenant ledit film antireflet
KR20120009674A (ko) 방현 필름, 이를 구비한 편광판 및 표시 장치
WO2020153640A1 (fr) Plaque de polarisation et dispositif d'affichage optique la comprenant
WO2020159138A1 (fr) Film de compensation d'angle de visualisation, plaque de polarisation le comprenant et dispositif d'affichage le comprenant
WO2016126047A1 (fr) Film anti-reflet
WO2018182118A1 (fr) Plaque polarisante comprenant un film optique et dispositif d'affichage d'image
WO2023244030A1 (fr) Film antireflet à faible réflexion, plaque de polarisation et dispositif d'affichage optique
WO2022220445A1 (fr) Stratifié de polarisation et dispositif d'affichage d'image le comprenant
WO2022220443A1 (fr) Stratifié de polarisation et dispositif d'affichage d'image le comprenant
TWI803771B (zh) 偏光板疊層以及包括其的顯示裝置
KR20130051230A (ko) 방현성 조성물, 이를 이용한 방현필름, 편광판 및 표시 장치

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080050501.0

Country of ref document: CN

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

Ref document number: 10815632

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10815632

Country of ref document: EP

Kind code of ref document: A2