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WO2013032118A1 - Film antiéblouissant - Google Patents

Film antiéblouissant Download PDF

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Publication number
WO2013032118A1
WO2013032118A1 PCT/KR2012/004761 KR2012004761W WO2013032118A1 WO 2013032118 A1 WO2013032118 A1 WO 2013032118A1 KR 2012004761 W KR2012004761 W KR 2012004761W WO 2013032118 A1 WO2013032118 A1 WO 2013032118A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
meth
acrylate
hollow
antireflection film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/004761
Other languages
English (en)
Korean (ko)
Inventor
김헌
장영래
강준구
구재필
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020120036335A external-priority patent/KR101226229B1/ko
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority to EP12827086.5A priority Critical patent/EP2749912B1/fr
Priority to CN201280041779.0A priority patent/CN103765252B/zh
Priority to JP2014527052A priority patent/JP6023810B2/ja
Publication of WO2013032118A1 publication Critical patent/WO2013032118A1/fr
Priority to US13/841,857 priority patent/US9482789B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02B1/113—Anti-reflection coatings using inorganic layer materials only
    • G02B1/115—Multilayers
    • G02B1/105—
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element

Definitions

  • the present invention relates to an antireflection film.
  • display devices such as PDPs, CRTs, and LCDs are equipped with anti-reflection films (or anti-glare films) for minimizing reflection of light incident on the screen from the outside.
  • anti-reflection films or anti-glare films
  • an antireflection layer is mainly formed on a light transmissive substrate.
  • the antireflection layer is most widely used in the three-layer structure in which a hard coat layer, a high refractive index layer and a low refractive index layer sequentially stacked from the light-transmitting substrate side.
  • a two-layer structure in which the hard coat layer or the high refractive index layer is omitted from the antireflection layer is also commercialized.
  • an anti-reflection film provided with an anti-glare hard coat layer is also used.
  • the antireflection film is generally produced by a dry method or a wet method.
  • the dry method is a method of laminating a plurality of thin film layers by vapor deposition, sputtering, or the like, and the interfacial adhesion between layers is strong, but the manufacturing cost is high and it is not widely used commercially.
  • the wet method is a method of coating a composition including a binder, a solvent, and the like on a substrate, and drying and curing the wet method, which has a low manufacturing cost compared to the dry method and is widely used commercially.
  • the wet method generally produces a composition required for forming each layer, such as a hard coat layer, a high refractive index layer, and a low refractive index layer, and uses the same to form each layer in sequence, thereby making the manufacturing process complicated and interlayer interface. Adhesion is weak.
  • the hard coat layer or the high refractive index layer is usually formed of a pure binder on the substrate, or formed of a separate layer containing a binder, inorganic fine particles, etc. on the substrate, and a low refractive index layer in which the vaporized particles are dispersed thereon is formed. .
  • the antireflection film of the structure as described above has a weak interfacial adhesion and poor durability.
  • the present invention provides an antireflection film that can be formed in a simplified process while exhibiting improved interlayer interfacial adhesion and scratch resistance.
  • the binder and the first layer comprising inorganic fine particles, eroded in the substrate; And a second layer covering the first layer, including a binder, and two to five hollow particle layers adjacent to each other, the hollow particles each layer being connected in series.
  • Such an antireflection film includes a first layer comprising a first (meth) acrylate binder and inorganic fine particles in the first (meth) acrylate binder, and eroding in the substrate; And a second (meth) acrylate binder, and the second
  • a second layer covering the first layer may be included, including two to five hollow particle layers in the (meth) acrylate-based binder.
  • At least one hollow particle spaced apart from the hollow particle layers of the 2 to 5 layers may be further included, and the at least one hollow particle is 150 nm or less with the hollow particle layers of the 2 to 5 layers. May be spaced apart.
  • the number of hollow particles spaced apart from the hollow particle layers of the 2 to 5 layers may be 10% or less of the number of hollow particles included in the entire film.
  • the first (meth) acrylate-based binder may include a crosslinked polymer of a (meth) acrylate-based compound having a molecular weight of less than 600
  • the second (meth) acrylate-based binder may have a molecular weight of 600 Less than It may include a crosslinked copolymer of a (meth) acrylate-based compound and a (meth) acrylate-based compound having a molecular weight of 600 to 100,000.
  • the first layer further includes a region where the crosslinked copolymer of a (meth) acrylate compound having a molecular weight of less than 600 and a (meth) acrylate compound having a molecular weight of 600 to 100,000 is located.
  • the region in which the crosslinked copolymer is positioned may be positioned to a depth of about 5 to 50% of the first charge based on the interface between the first charge and the second layer.
  • the crosslinked copolymer may be included to increase the distribution gradient in the direction of the second layer.
  • the second layer may further include inorganic fine particles.
  • the second (meth) acrylate-based binder is a crosslinked air in which a fluorine-based (meth) acrylate compound is further copolymerized in addition to the (meth) acrylate-based compound having a molecular weight of less than 600 and the (meth) acrylate-based compound having a molecular weight of 600 to 100,000. It may also include coalescence. ⁇
  • the inorganic fine particles may have a number average particle diameter of 5 to 50 nm, and may be, for example, silica fine particles.
  • the hollow particles may be one having a number average particle diameter of 5 to 80 nm, for example, hollow silica particles.
  • the anti-reflective film according to the present invention can be formed by a single coating, so that it can be formed in a simplified process, while maintaining improved interfacial adhesion and scratch resistance between layers.
  • the anti-reflection film may exhibit an excellent anti-reflection effect, and thus may be preferably applied to an anti-reflection film such as a display device.
  • FIG. 1 is a cross-sectional view schematically showing the structure of an anti-reflection film according to an embodiment of the present invention.
  • FIG. 2 is a flow chart schematically showing a method of manufacturing an anti-reflection film according to an embodiment of the present invention.
  • 3 to 6 are enlarged observation photographs of cross-sections of the antireflection films according to Examples 1, 2, 4, and Comparative Example 1, respectively.
  • the term "inorganic fine particles” refers to particles derived from various inorganic materials, and may collectively refer to particles having a number average particle diameter on the nanometer scale, for example, a number average particle diameter of 100 nm or less. Such 'inorganic particulates' may be amorphous particles having substantially no empty space inside the particles.
  • the “silica fine particles” may be particles derived from a silicon compound or an organosilicon compound, and may refer to silicon compound or organosilicon compound particles having a number average particle diameter of 100 nm or less and no empty space inside the particles.
  • low particles may refer to particles having an empty space on the surface and / or inside of the organic or inorganic particles.
  • the term “hollow silica particles” may refer to particles having a hollow space present on and / or inside the silica particles as silica particles derived from a silicon compound or an organosilicon compound.
  • the 'hollow particle layer' may refer to a hollow particle row forming a layer on a substrate including hollow particles continuously connected in a direction parallel to the substrate.
  • the hollow particles included in one 'hollow particle layer' may not be continuously connected to the whole, and among the hollow particles constituting the 'hollow particle layer', for example, within about 5% or about 1% May not be connected to other hollow particles and may be discontinuous.
  • these 'hollow particle layers' are 'adjacent to each other' means that at least about 4OT or more, or about 50% or more, or about 60% or more, or about 70% or more of the hollow particles constituting any 'hollow particle layer', Or about 80% or more, black is about 9OT or more
  • the hollow particles may be in contact with the hollow particles forming another 'hollow particle layer' in a direction perpendicular to the substrate.
  • (meth) acrylate ' is defined as collectively referred to as acrylate (acrylate) or methacrylate (methacrylate).
  • such a '(meth) acrylate' may be defined as not having a fluorine-containing substituent, and the compound having a fluorine-containing substituent may be referred to as a fluorine-based (meth) acrylate compound.
  • coating layer means a composition layer formed by applying (coating) a composition for antireflection coating described later on a predetermined base film.
  • phase separation' means that a difference is formed in the distribution of specific components included in the composition due to differences in density, surface tension, or other physical properties of the components.
  • the coating layer when the coating layer is phase-separated, it may be divided into at least two layers based on whether a specific component is distributed, for example, the distribution of hollow particles.
  • ⁇ eroding into the substrate '' means that a component (for example, a (meth) acrylate-based compound and an inorganic fine particle, etc., for forming a binder of the layer) for forming a layer of the antireflection film It may be referred to as penetrating into the substrate to form the layer in question.
  • a component that has penetrated into the substrate can be dried and cured while penetrating into a region within the substrate to form a layer within the substrate in that region.
  • the formation of a layer 'on the substrate' means that the components for forming the layer are not substantially eroded in the substrate, and are dried and cured at the interface with the substrate, thereby ensuring that there is no overlapping area with the substrate. It may refer to forming a layer.
  • one layer e.g., the second layer of one embodiment described below
  • the second layer including the hollow particle layers 'covering' the first layer eroded in the substrate includes the first layer, which is an erosion layer in the substrate, and the hollow particle layer.
  • a separate layer for example, does not erode into the substrate between the second layer, nor does the hollow particle layer It may mean that there is no separate layer not included.
  • a binder for example, a crosslinked polymer formed from a (meth) acrylate-based compound
  • inorganic fine particles is formed between the first layer, which is an erosion layer, and the second layer containing the hollow particle layer. It may mean that there is no separate layer that is included and not eroded into the substrate.
  • the present inventors in the process of studying the anti-reflection film, by using a predetermined composition to be described later to form the anti-reflection film while inducing spontaneous phase separation, it is excellent with the interfacial adhesion and scratch resistance between the improved layers It was confirmed that it was possible to provide an antireflection film showing an antireflection effect, and completed the invention.
  • the excellent characteristic of such an antireflection film is that the first layer serving as the hard coat layer is formed in the form of erosion in the substrate, and the second layer serving as the low refractive index layer is formed to cover the first layer. It seems to be due to structural characteristics.
  • a separate hard coat layer eg, substantially free of hollow particles, substantially no binder, only binder, or only binder and inorganic fine particles
  • a separate coating or curing process is required to form each layer, and the process is complicated or the interface adhesion between layers is reduced. There is this.
  • the antireflective film of one embodiment wherein the first layer (hard coat layer) eroded in the substrate covers the second layer (low refractive index layer) has a single coating . And while being able to be formed in a simplified manner through the curing process, it can exhibit excellent interfacial adhesion between the layers.
  • the antireflective film of one embodiment includes hollow particles in the second layer (low refractive index layer) densely packed, and includes 2 to 5 layers of hollow particle layers in which these hollow particles are continuously connected. It is formed adjacent to each other in two layers. Accordingly, the anti-reflection film of one embodiment may exhibit a better anti-glare effect, it may exhibit a greatly improved interface adhesion.
  • An antireflection film of such an embodiment comprises a first layer comprising a binder and inorganic fine particles and eroded in the substrate; And a second layer covering the first layer, including a binder and hollow particles layers of two to five layers adjacent to each other, the hollow particles being continuously connected to each layer.
  • the anti-reflection film includes a first layer comprising a first (meth) acrylate-based binder and inorganic fine particles in the first (meth) acrylate-based binder and eroded in the substrate; And a second layer covering the first layer, including a second (meth) acrylate-based binder and two to five hollow particle layers in the second (meth) acrylate-based binder.
  • the first layer eroded in the substrate can act as a high refractive index layer exhibiting a refractive index of at least about 1.5 while acting as a hard coat layer of the antireflection film.
  • the hard coat layer may include a first (meth) acrylate-based binder eroded into the substrate, the first (meth) acrylate-based binder includes a cross-linked polymer of (meth) acrylate-based compound having a molecular weight of less than 600 can do.
  • the hard coat layer may include inorganic fine particles in the first (meth) acrylate-based binder.
  • the base material within the eroded layer of the second layer that covers it in contact with the first layer is all or most of the hollow particles (e.g., about 97 parts by weight 0/0 or more, or at least about 99% by weight) is substantially distributed It can act as a low refractive index layer of the anti-reflection film ⁇
  • a low refractive index layer can exhibit a low refractive index of about 1.45 or less to exhibit an appropriate anti-reflection effect.
  • the hollow particles in the second layer are continuously connected to each other to form a hollow particle layer, and 2 to 5 layers, or 2 to 4 layers of such hollow particle layers are closely formed in the second layer. Accordingly, the second layer can exhibit a lower refractive index and an excellent antireflection effect, and can exhibit excellent scratch resistance and the like.
  • the low refractive index layer includes a second (meth) acrylate-based binder
  • the second (meth) acrylate-based binder includes a (meth) acrylate-based compound having a molecular weight of less than 600 and a molecular weight of 600 to 100,000. It may include a crosslinked copolymer of a (meth) acrylate-based compound.
  • the aforementioned 2 to 5 hollow particle layers may be included in the second (meth) acrylate-based binder of the low refractive index layer.
  • the first (meth) acrylate-based binder of the first layer serving as a hard coat layer is a (meth) acrylate-based compound having a molecular weight of less than 600 and a (meth) acrylate-based compound having a molecular weight of 600 to 100,000. It may further comprise a crosslinked co-polymer of.
  • the second layer serving as the low refractive index layer may further include inorganic fine particles.
  • FIG. 1 A schematic schematic diagram of an example of such an antireflection film is shown in FIG. 1.
  • a first layer 2 serving as a hard coat layer is formed in a hardened state by erosion in the substrate 1, and a second layer 3 serving as a low refractive index layer.
  • the erosion layer can be formed on the substrate on which the erosion layer is formed while in contact with and covering the first layer 2 which is the erosion layer. At this time, no separate layer is distinguished between the first layer 2 eroded into the substrate and the second layer 3 over the substrate.
  • Such a separate layer is not formed between the first layer as the erosion layer and the second layer where the hollow particles are substantially distributed, for example, containing only binder and / or inorganic fine particles and It may be referred to as including substantially no separate layer that is not eroded into the substrate.
  • Anti-reflective film of another embodiment may have excellent interfacial adhesion with the substrate, the hard coat layer and the low refractive index layer, thereby minimizing the peeling phenomenon during the use process.
  • the ratio of the cross-sectional area of the hollow particles to any cross-sectional area of the second layer is about 70 to 95%, or about 75 to 93%, or about 80 to 90%, or about 85 to 92%.
  • the hollow particles may be densely distributed in the second layer serving as the low refractive index layer. Therefore, the antireflection film of one embodiment may exhibit excellent low refractive index characteristics and antireflection effects.
  • each layer that may be included in the antireflection film of one embodiment will be described in more detail.
  • the antireflective film comprises a substrate.
  • the substrate 0) is a conventional transparent thin film, and the type thereof is not particularly limited as long as it is a material capable of eroding the first (meth) acrylate-based binder and the inorganic fine particles of the first layer.
  • the base material those derived from materials such as polyester resins, polycarbonate resins, acrylic resins, and acetate cellulose resins can be used.
  • a triacetate cell may be used as a base material of Rhodes (TAC) resin.
  • the antireflection film contains the crosslinked polymer of the (meth) acrylate type compound of molecular weight less than 600 as a 1st (meth) acrylate type binder, and contains the inorganic fine particles in such a 1st (meth) acrylate type binder.
  • the first layer 2 can be included as a hard coat layer. Such a hardcoat layer can be a layer eroded into the substrate.
  • the first layer 2 may be one in which the first (meth) acrylate-based binder and the inorganic fine particles are eroded into the substrate to be cured integrally with the substrate. Although the first layer 2 is shown as eroded to the entire surface of the substrate 1 in FIG. 1, in another example, the first layer 2 may be constructed by eroding a portion of the substrate 1.
  • the second layer 3 acting as a low refractive index layer is formed to contact and cover the first layer 2 eroded in the substrate 1 and comprises two to five hollow particle layers 4 adjacent to each other.
  • Each of these hollow particle layers 4 comprises a plurality of hollow particles continuously connected in a direction parallel to the substrate, and forms a layer on the substrate, wherein two to five layers of the hollow particle layers 4 are adjacent to each other and have a second shape. Hollow particles are densely distributed in the layer. Due to the distribution of the hollow particles and the hollow particle layers, the antireflection film of one embodiment may exhibit a better antireflection effect.
  • the antireflection film of one embodiment may further include one or more hollow particles 5 spaced apart from two to five hollow particle layers 4 which are tightly distributed in the crab two layers.
  • the spaced hollow particles 5 are also about 150 nm or less, black is about 100 nm or less, black is about 30 nm or less, black is about 30 nm or less, and about 5 to 30 nm with the 2 to 5 hollow particle layers 4. Can be spaced apart at relatively short distances.
  • the number of hollow particles 5 spaced apart from the two to five hollow particle layers 4 is about 10% or less, or about about the number of hollow particles included in the entire film.
  • the antireflective film of one embodiment may exhibit more improved antireflective properties.
  • the reflective anti-magnetic film of one embodiment is a second layer (3) ) Can be formed directly above the substrate 1 and the first layer 2 acting as a hard coat layer, thereby exhibiting an improved interlayer adhesion, scratch resistance and antireflection effect.
  • the second (meth) acrylate-based binder of the second layer (3) may include a crosslinked copolymer of a (meth) acrylate-based compound having a molecular weight of less than 600 and a (meth) acrylate-based compound having a molecular weight of 600 to 100,000.
  • the second (meth) acrylate-based binder is a crosslinked air of a (meth) acrylate compound having a molecular weight of less than 600, a (meth) acrylate compound having a molecular weight of 600 to 100,000 and a fluorine (meth) acrylate compound It may also include coalescence.
  • the crosslinked copolymer further copolymerized with such a fluorine-based (meth) acrylate compound is included in the second (meth) acrylate-based binder, lower refractive index and excellent reflection of the second layer 3 serving as a low refractive index layer Prevention effect can be implemented.
  • the scratch resistance of the 2nd layer 3 can be improved more.
  • the second layer 3 may further include inorganic particulates in the second (meth) acrylate-based binder, through which the scratch resistance and the antireflection effect of the second layer 3 can be further improved. .
  • the 1st (meth) acrylate type binder of the 1st layer (2) has the (meth) acrylate type compound and molecular weight of less than 600 other than the crosslinked polymer of the (meth) acrylate type compound of less than 600 molecular weight mentioned above. It may further comprise a crosslinking copolymer of 600 to 100,000 (meth) acrylate-based compound.
  • the crosslinked copolymer contained in the first (meth) acrylate-based binder of the first layer (2) has a first layer (2) based on the light interface of the first layer (2) and the second layer (3). ), For example up to about 5-50% deep, or about 5-45% deep, or up to about 5-40% deep of the first layer (2).
  • the crosslinked copolymer included in the binder of the first layer 2 may be included so that the distribution gradient increases in the direction of the second layer 3.
  • the (meth) acrylate compound having a molecular weight of 600 to 100,000 is crosslinked and copolymerized with the (meth) acrylate compound having a molecular weight of less than 600 with a distribution gradient up to a predetermined depth of the first layer (2).
  • crosslinked copolymerization is included in the entirety of the second layer 3, the interfacial adhesion between the first layer 2 and the second layer 3 can be further improved, and the hollow particles contained in the second layer 3 These can be closely distributed.
  • the first layer 2 is a layer having a higher refractive index than the second layer 3 serving as the low refractive index layer, and has a refractive index of about 1.5 to 1.58, or about 1.5 to 1.57, or About 1.51 to 1.56.
  • the second layer 3 may have a refractive index of about 1.1 to 1.45, or about 1.15 to 1.43, or about 1.2 to 1.42.
  • the anti-reflection film of another embodiment described above has a reflectance of about 0.5 to
  • Such antireflective coating compositions include (meth) acrylate compounds having a molecular weight of less than 600; (Meth) acrylate compounds having a molecular weight of 600 to 100,000; Inorganic fine particles; And hollow particles. When each composition of this composition is demonstrated, it is as follows.
  • the antireflective coating composition may include a (meth) acrylate compound having a molecular weight of less than 600. Such a low molecular weight (meth) acrylate-based compound may be at least partially eroded into the substrate when the composition is applied to any substrate.
  • the low molecular weight (meth) acrylate-based compound eroded to the substrate is homopolymerized or copolymerized together with a high molecular weight (meth) acrylate-based compound having a molecular weight of 600 to 100,000, which will be described later, and a binder of the first layer corresponding to the eroded region. Can be formed.
  • the remainder of the low molecular weight (meth) acrylate compound may remain on the substrate without being eroded.
  • the remaining compound may be copolymerized with a high molecular weight (meth) acrylate compound to be described later to form a binder of a second layer covering the first layer of the erosion region.
  • the low molecular weight (meth) acrylate compound in order to form such a low molecular weight (meth) acrylate compound sufficiently eroded in the substrate to form a binder and a first layer which acts as a hard coat layer of the antireflection film, the low molecular weight (meth) acrylate compound Silver, for example, less than about 600, black may have a molecular weight of less than about 500, or less than about 400, in another example, may have a molecular weight of about 50 or more, or about 100 or more.
  • the low molecular weight (meth) acrylate-based compound is formed so that a first layer (e.g., a hard coat layer and / or a high refractive index layer) exhibiting a higher refractive index can be formed in the substrate. It may have a substituent such as sulfur, chlorine or metal or an aromatic substituent.
  • Such low molecular weight (meth) acrylate compounds include pentaerythroxy tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythroxy nucleated (meth) acrylate, trimethylenepropane tri ( Meth) acrylate, ethylene glycol di (meth) acrylate, 9,9-bis (4- (2-acryloxyephenyl) fluorene (refractive index 1.62), bis (4-methacryloxythiophenyl) sulfide (Refractive index 1.689), and bis (4-vinylthiophenyl) sulfide (refractive index 1.695) may be included, and may include two or more kinds selected from these.
  • ⁇ meth) acrylate compound having a molecular weight of 600 to 100,000
  • the antireflective coating composition may include a high molecular weight (meth) acrylate compound having a molecular weight of 600 to 100,000.
  • a high molecular weight (meth) acrylate compound having a molecular weight of 600 to 100,000.
  • Such high molecular weight (meth) acrylate-based compounds have a relatively small amount when the composition is applied to any substrate due to the large molecular weight and the bulky chemical structure thereof, as compared to the low molecular weight compounds described above. May be eroded into, and the remaining substantial amount may remain on the substrate.
  • the high molecular weight (meth) acrylate compound is not eroded to the same depth as the low molecular weight (meth) acrylate compound described above.
  • the erosion region in the substrate can be divided into the following two regions. First, a region in which only the low molecular weight (meth) acrylate-based compound is eroded is a region at a depth that can be eroded, where a binder which is a crosslinked polymer of the low molecular weight (meth) acrylate-based compound may exist. have.
  • a binder in which a high molecular weight (meth) acrylate compound and a low molecular weight (meth) acrylate compound are crosslinked and copolymerized May exist.
  • the second layer of the high molecular weight (meth) acrylate-based compound not eroded to the base material is copolymerized with the above-described low molecular weight compound to cover the erosion layer (for example, a low refractive index layer of the antireflection film).
  • the second (meth) acrylate binder can be formed. Accordingly, the first layer which can serve as a hard coat layer of the antireflection film, and the second covering the upper layer
  • the interfacial adhesion between the layers (low refractive index layer) is improved, while the scratch resistance of the low refractive index layer is improved, and the hollow particles included in the low refractive index layer can be more densely distributed.
  • Such a high molecular weight (meth) acrylate compound is a compound having a relatively large molecular weight and bulky structure compared to the low molecular weight compound described above, for example, about 400 or more, or about 500 or more, or about It may have a molecular weight of 600 or more, as another example may have a molecular weight of about 100,000 or less, black is about 80,000 or less, black is about 50,000 or less.
  • the high molecular weight (meth) acrylate compound may include a compound having a structure in which two or more molecules of the aforementioned low molecular weight (meth) acrylate compound are connected by a linker.
  • the linker may be a divalent or higher radical including any chemical bond known to be capable of connecting a (meth) acrylate-based compound, for example, a urethane bond, a thioether bond, an ether bond or an ester bond.
  • the high molecular weight (meth) acrylate compound has at least one substituent selected from the group consisting of an epoxy group, a hydroxyl group, a carboxy group, a thil group, an aromatic or aliphatic hydrocarbon group having 6 or more carbon atoms, and an isocyanate group for a bulkier structure.
  • an epoxy group a hydroxyl group, a carboxy group, a thil group, an aromatic or aliphatic hydrocarbon group having 6 or more carbon atoms, and an isocyanate group for a bulkier structure.
  • a commercial article satisfying the above conditions may be used or may be directly synthesized.
  • examples of such commodities include UA-306T, UA-306I, UA-306H, UA-510T, UA-510I, UA-510H (above, manufactured by KYOEISHA); BPZA-66, BPZA-100 (above, manufactured by KYOEISHA Corporation); EB9260, EB9970 (above, manufactured by BAEYER); Examples thereof include Miramer SP1107 and Miramer SP1114 (manufactured by MIWON).
  • the high molecular weight (meth) acrylate-based compound described above is about 5 to 30 parts by weight, black about 5 to 25 parts by weight, or about 5 to 20 parts by weight based on 100 parts by weight of the low molecular weight compound. Can be included.
  • the content ratio of the high molecular weight (meth) acrylate-based compound is configured at the time of excessive addition while ensuring the minimum effect of the mixed use of the compound for forming a binder including a high molecular weight and a low molecular weight (meth) acrylate-based compound Floor It may be set in consideration of optimization of physical properties or change in distribution tendency of the hollow particles.
  • the above-described antireflective coating composition may further include a fluorine-based (meth) acrylate compound in which at least one fluorine is substituted as a compound for forming a binder.
  • a fluorine-based (meth) acrylate compound is the 2nd (meth) acrylate type binder of the 2nd layer which serves as the low refractive index layer of an antireflection film with the low molecular weight and high molecular weight (meth) acrylate compound mentioned above. Can be formed.
  • the fluorine-based (meth) acrylate compound exhibits a lower refractive index, the refractive index of the low refractive index layer can be lowered, and the polar fluorine-containing (meth) acrylate compound has excellent compatibility with hollow particles to be described later as it contains a polar functional group, and scratch resistance of the low refractive index layer. It can help improve your sex.
  • fluorine-based (meth) acrylate compounds are arbitrary
  • the (meth) acrylate compound may have a structure in which one or more fluorine-containing substituents are bonded thereto, and examples of such a fluorine-based (meth) acrylate compound include at least one member selected from the group consisting of compounds represented by Formulas 1 to 5 below.
  • Compounds include:
  • R 1 is an alkyl group or a hydrogen group having 1 to 6 carbon atoms and a is an integer from 0 to 7, b is an integer from 1 to 3;
  • f is an integer of 4 to 10.
  • the fluorine-based (meth) acrylate compound is about 5 to 20 parts by weight, or about 5 to 18 parts by weight, and black is about 10 to 16 parts by weight based on 100 parts by weight of the low molecular weight (meth) acrylate compound described above. It may be included in the composition for anti-reflective coating.
  • a commercial item satisfying the above conditions may be used.
  • examples of such commercial items include OPTOOL AR110 (manufacturer: DAIKIN), LINC-3A, and LINC-102A (manufacturer: KYOEISHA), PFOA (manufacturer: Exfluor), OP- 3 8Z (manufacturer: DIC), etc. are mentioned.
  • the anti-reflective coating composition may include inorganic fine particles.
  • the inorganic fine particles may be included in a state in which a portion thereof is eroded and dispersed together with the above-described two or more kinds of binder-forming compounds.
  • the remainder not eroded into the substrate is included in the state dispersed in the second layer serving as the low refractive index layer, and may contribute to the improvement of scratch resistance and antireflection.
  • the inorganic fine particles are particles derived from various inorganic materials, and may have a number average particle diameter of a nanometer scale.
  • These inorganic fine particles may have a number average particle diameter of, for example, about 100 nm or less, black about 5 to 50 nm, and black about 5 to 20 nm.
  • the particle diameter of the inorganic fine particles may be adjusted to be in the above-described range.
  • silica fine particles derived from a silicon compound or an organosilicon compound may be used as the inorganic fine particles.
  • the inorganic fine particles may be, for example, about 5 to 30 parts by weight, or about 5 to 25 parts by weight, and black about 5 to 20 parts by weight with respect to 100 parts by weight of the above-described low molecular weight (meth) acrylate-based compound. It may be included in the composition.
  • the content of the inorganic fine particles that can be eroded depending on the type of the substrate, and the increase of the reflectance upon excessive addition In consideration of the reduction of the anti-reflection effect, etc., the content of the inorganic fine particles can be adjusted to the above range.
  • the inorganic fine particles may be contained in the form of a sol (sol) having a solid content of about 5 to 40% by weight dispersed in a predetermined dispersion medium.
  • the organic solvent that can be used as a dispersion medium include alcohols such as methane, isopropyl alcohol (IPA), ethylene glycol, butanol, and the like; Ketones such as methyl ethyl ketone and methyl iso butyl ketone (MIBK); Aromatic carbon hydrogens such as toluene and xylene; Amides such as dimethyl formamide, dimethyl acetamide and N-methyl pyrrolidone; Esters such as ethyl acetate, butyl acetate and ⁇ -butyrolactone; Ethers such as tetrahydrofiiran and 1,4-dioxane; Or it may be those of common compounds, for example.
  • alcohols such as methane, isopropyl alcohol (IPA), ethylene
  • silica sol may be used as the inorganic particles.
  • the anti-reflective coating composition may further include hollow particles.
  • hollow particles mean particles in the form of empty spaces on the surface and / or inside of the particles, and are components for achieving low low refractive index and antireflection effect.
  • hollow particles are not substantially distributed in the first layer which acts as a hard coat layer of the antireflective film when the composition is applied to the substrate, and acts as a layer on the substrate covering this erosion layer, ie a low refractive index layer. It can be distributed in the second layer to form the hollow particle layers of 2 to 5 layers as described above.
  • the hollow particles are not substantially distributed (included) in the first layer, meaning that the content ratio of the hollow particles present in the first layer, which is an erosion layer in the substrate, is less than about 5% by weight based on the total hollow particles. or it may mean that from about 3 parts by weight 0 / less than 0, or less than about 1% by weight.
  • the hollow particles may not be substantially distributed in the first layer, which is an erosion layer during phase separation, due to density differences or surface energy differences with other constituents, and may be densely distributed in the second layer serving as a low refractive index layer. have.
  • the hollow particles are not particularly limited as long as the hollow particles are particles having an empty space on the surface and / or inside of the particles, but in one embodiment, the silicon compound may be used to secure transparency and / or low refractive index of the low refractive index layer. Or hollow silica particles derived from organosilicon compounds can be used.
  • the particle diameter of the hollow particles may be determined in a range capable of maintaining the transparency of the film and yet exhibit an antireflection effect.
  • the hollow particles may have a number average particle diameter of, for example, about 5 to 80 nm, or about 10 to 75 nm, and black about 20 to 70 nm.
  • the hollow particles are, for example, about 1 to 30 parts by weight, or about 1 to 25 parts by weight, and black about 5 to 20 parts by weight, based on 100 parts by weight of the above-described low molecular weight (meth) acrylate-based compound. It may be included in the composition.
  • the content of the hollow particles can be adjusted in the above-described range so that the minimum distribution by the hollow particles can be exhibited, so that a desirable distribution due to phase separation can be formed.
  • the hollow particles may be included in a colloidal phase having a solid content of about 5 to 40% by weight as a dispersion in a dispersion medium (water or an organic solvent).
  • the organic solvent usable as the dispersion medium may include alcohols such as methanol, isopropyl alcohol (IPA), ethylene glycol and butanol; Ketones such as methyl ethyl ketone and methyl iso butyl ketone (MIBK); Aromatic carbon hydrogens such as toluene and xylene; Amides such as dimethyl formamide, dimethyl acetamide and N-methyl pyrrolidone; Esters such as ethyl acetate, butyl acetate and ⁇ -butyrolactone; Ethers such as tetrahydrofran and 1,4-dioxane; Or combinations thereof.
  • alcohols such as methanol, isopropyl alcohol (IPA), ethylene glycol and butanol
  • Ketones such as methyl
  • the above-described antireflective coating composition may further include a solvent.
  • the solvent serves to control the viscosity of the composition in an appropriate range, and to control the erosion of the binder-forming compounds in the substrate and the smooth phase separation and distribution tendency of the hollow particles.
  • a solvent having a dielectric constant (25 ° C.) of about 20 to 30 and a dipole moment of about 1.7 to 2.8 may be used.
  • the solvent capable of satisfying such physical properties include methyl ethyl ketone, ethyl acetate, acetyl acetone, and the like.
  • any solvent that satisfies the above properties may be used.
  • examples of such a usable solvent include isobutyl ketone, methane, ethanol, n-butanol, i-butane or t-butanol.
  • the solvent satisfying the dielectric constant and dipole moment range may be included in an amount of about 60 wt% or more based on the total weight of the solvent included in the composition.
  • the solvent is, for example, about 100 to 500 parts by weight, or about 100 to 450 parts by weight, or about 100 parts by weight based on 100 parts by weight of the low molecular weight (meth) acrylate compound. To 400 parts by weight.
  • the solvent may be included in a certain amount or more.
  • the solvent when the solvent is added in excess, the solid content may be too low, resulting in defects during drying and curing, and the distribution tendency of the hollow particles may deviate from a desirable range.
  • the above-described antireflective coating composition may further include a polymerization initiator.
  • the polymerization initiator is activated by energy rays such as ultraviolet rays.
  • energy rays such as ultraviolet rays
  • compounds conventional in the art may be used.
  • polymerization initiators examples include 1-hydroxy cyclonuxylphenyl ketone, benzyl dimethyl ketal, hydroxy dimethylacetophenone, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin butyl ether, and the like. And various photopolymerization initiators may be used.
  • the content of the polymerization initiator may be, for example, about 5 to 25 parts by weight, or about 5 to 20 parts by weight, or about 5 to 15 parts by weight based on 100 parts by weight of the low molecular weight (meth) acrylate compound. .
  • the content of the polymerization initiator may be more than a predetermined level.
  • mechanical properties such as scratch resistance or abrasion resistance of each layer forming the antireflection film may be lowered, which is not appropriate.
  • Figure 2 schematically shows a method of manufacturing an antireflective film of one embodiment using the above-described antireflective coating composition as a flow chart.
  • the manufacturing method of such an anti-reflection film comprises the steps of preparing the composition for the anti-reflective coating described above; Applying the anti-reflective coating composition to at least one side of the substrate; Eroding a portion of the compound for forming a binder and the inorganic fine particles onto the substrate while drying the applied shipbuilding; And curing the eroded and dried composition to form a first layer corresponding to the eroded region of the substrate and a second layer comprising the hollow particles and covering the first layer.
  • a solvent having a predetermined physical property in the composition may first dissolve a part of the substrate, and thus, a part of the compound for forming a binder (eg, a (meth) acrylate-based compound having a low molecular weight and a high molecular weight).
  • a binder eg, a (meth) acrylate-based compound having a low molecular weight and a high molecular weight.
  • a portion of the compound) and at least a portion of the inorganic fine particles can be eroded into the substrate.
  • some of the non-eroded binder-forming compound and inorganic fine particles, and the hollow particles may form a coating layer (eg, a second layer) on the substrate.
  • a coating layer may remain in a thin thickness on the substrate eroded from the above components, and hollow particles are densely present in the coating layer to form two to five layers of hollow particles.
  • the first and second (meth) acrylate binders of the first layer and the second layer are formed, and the first layer, which is an erosion layer in the substrate serving as a hard coat layer, is adjacent to each other.
  • a second layer covering the first layer can be formed, including two to five hollow particle layers. As a result, an antireflection film of one embodiment may be formed.
  • the anti-reflection film of one embodiment could be formed in a simplified process by erosion and phase separation in the substrate of some components, even if a single coating and curing process using a single composition is applied.
  • the antireflection film since the antireflection film is formed in contact with the second layer by eroding the first layer serving as the hard coat layer in the substrate, it can exhibit excellent interfacial adhesion and mechanical properties.
  • such an antireflection film can form two to five layers of hollow particle layers adjacent to each other because hollow particles are densely present in the second layer without a separate layer between the first layer and the second layer. It can exhibit low refractive index and excellent antireflection properties.
  • the anti-reflective coating composition described above includes at least two kinds of binder-forming compounds, solvents of predetermined physical properties, and the like, so that erosion and phase separation in the substrate can be optimized.
  • the method of applying the composition to at least one side of the substrate may be performed using a conventional coating apparatus and method in the art such as a wire bar.
  • the drying step may be performed for about 0.1 to 60 minutes at a temperature of about 5 to 150 ° C, or about 0.1 to 20 minutes at a temperature of about 20 to 120 ° C to promote phase separation of the composition and erosion into the substrate.
  • the black may be performed for about 1 to 10 minutes at a temperature of about 30 to 110 ° C.
  • the curing step by adding energy to the dried composition by a method such as irradiating light to initiate the polymerization reaction, through this it is possible to cure the eroded and dried composition.
  • This curing step leads to a more intense curing reaction. For about 1 to 600 seconds at an ultraviolet dose of about 0.1 to 2 J / citf, for about 2 to 200 seconds at an ultraviolet dose of about 0.1 to 1.5 J / cuf, or at about 0.2 to 1 J / cin 2 for an ultraviolet dose It may be performed for 3 to 100 seconds.
  • the antireflection film of the above-described embodiment can be obtained, and in this antireflection film, the cross-sectional area of the hollow particles with respect to any cross-sectional area of the second layer serving as the low refractive index layer.
  • Hollow particles may be densely distributed in the low refractive index layer such that the ratio is about 70 to 95%, or about 75 to 93%, or about 80 to 90%, or about 85 to 92%.
  • the above-described method for manufacturing the anti-reflection film may be performed by further including steps that may be commonly performed in the art before or after each step.
  • steps that may be commonly performed in the art before or after each step.
  • Silica sol in which silica fine particles are dispersed (dispersion medium: methyl isobutyl ketone and methyl alcohol, solid content 40 wt%, number average particle diameter of silica fine particles: 10 nm, manufacturer: Gaematech, product name: Purisol) about 15.87 parts by weight;
  • the colloid solution dispersed the hollow silica (dispersion medium: methyl isobutyl ketone, solids content 20 wt. 0/0, the number average of the hollow silica mouth diameter: 50 nm, Manufacturer: Catalyst Chemical Industry, Product name: MIBK-sol) about 11.33 parts by weight ; About 10.85 parts by weight of the photopolymerization initiator (specifically, about 1.11 parts by weight of Darocur-1173, about 6.48 parts by weight of Irgacure-184, about 2.15 parts by weight of Irgacure-819 and about 1.11 parts by weight of Irgacure-907); And
  • solvent specifically, about 179.63 parts by weight of methyl ketone (MEK), about 24.07 parts by weight of ethanol, about 24.07 parts by weight of n-butyl alcohol and about 24.07 parts by weight of acetylacetone
  • MEK methyl ketone
  • a composition for preparation was prepared.
  • the antireflective coating composition was coated with a triacetate cell on a rose film (thickness 80 jMn) using a wire bar (9). After drying for 1 minute in a 90 ° C oven, the composition was cured by irradiating UV energy of 200 mJ / cuf for 5 seconds.
  • an antireflection film including a hard coat layer formed by erosion in a substrate and a low refractive index layer covering the hard coat layer was obtained.
  • the antireflection film according to Example 1 includes a binder hardened by erosion on the substrate 1 and a hard coat layer 2 in which inorganic particles are dispersed in the binder ( About 3.9 // m); And a low refractive index layer (3) (about 0.15 / m) in which the hollow cured layer 4 is formed in the binder and the binder cured on the hard coat layer 2.
  • pentaerythrite nucleoacrylate molecular weight 298.3
  • fluorine acrylate product name: OPTOOL AR110, manufacturer: DAIKIN, 15% by weight of solids content, methyl isobutyl ketone solvent
  • urethane functional groups Acrylate (manufacturer: KYOEISHA, product name: UA-306T, molecular weight 1000) 1 to 100 parts by weight of a (meth) acrylate compound containing 1.33 parts by weight;
  • Silica particulate self sol dispersed silica (dispersion medium: methyl isobutyl ketone and methyl alcohol, the solid content of 40 wt. 0/0, the silica particulate as the average particle size of characters: 10 nm, Manufacturer: Gaematech, product name: Purisol) about 15.87 wt. part;
  • the colloid solution dispersed the hollow silica (dispersion medium: methyl isobutyl ketone, the number average particle diameter of the solid content of 20 wt. 0/0, hollow silica: 50 nm, Manufacturer: Catalyst Chemical Industry, Product name: MIBK-sol) about a 1.33 parts by weight ;
  • a photopolymerization initiator specifically, about 1.11 parts by weight of Darocur-1173, about 6.48 parts by weight of Irgacure-184, about 2.15 parts by weight of Irgacure-819 and about 11 parts by weight of Irgacure-907;
  • solvent specifically, about 179.63 parts by weight of methyl ketone (MEK), about 24.07 parts by weight of ethane, about 24.07 parts by weight of n-butyl alcohol and about 24.07 parts by weight of acetylacetone
  • MEK methyl ketone
  • a composition for preparation was prepared.
  • an anti-reflection film was prepared under the same conditions and methods as in Example 1.
  • An anti-reflection film according to Example 2 includes a binder hardened by erosion on a substrate (1), and a hard coat layer (2) (about 2.8 p) in which inorganic particles are dispersed in the binder; And a low refractive index layer (3) (about 0.145) in which the hollow particles layer 4 is formed in the binder and the binder cured on the hard coat layer 2.
  • the ratio of the cross-sectional area of the hollow particles to any cross-sectional area of the low refractive index layer 3 was about 90%. It was confirmed that the hollow particles were very densely distributed in the low refractive index layer (3). In addition, it was confirmed that two to four hollow particle layers 4 adjacent to each other are formed in the low refractive index layer 3, and the number of hollow particles spaced apart from the hollow particle layers is a total hollow. Only 4% of the particles were found.
  • Example 3 the anti-reflection film according to Example 2 was confirmed that as the fluorine-based acrylate is included in the low refractive index layer, phase separation of the composition may occur more smoothly and scratch resistance is improved.
  • a (meth) acrylate compound including pentaerytrie 100 parts by weight of nucleacrylate (molecular weight 298.3) and 11.33 parts by weight of acrylate having a urethane functional group (manufacturer: KYOEISHA, product name: 510H, molecular weight 2000) about ;
  • Silica particulate self sol dispersed silica (dispersion medium: methyl isobutyl ketone and methyl alcohol, the solid content of 40 wt. 0/0, silica Number of particulate average particle diameter: 10 nm, Manufacturer: Gaematech, product name: Purisol) about 15.87 An increase part;
  • colloidal solution in which hollow silica is dispersed (dispersion medium: methyl isobutyl ketone, solid content 20% by weight, number average particle diameter of hollow silica: 50 nm, manufacturer: Catalysis Industry, product name: MIBK-sol) about 11.33 parts by weight;
  • solvent specifically, about 179.63 parts by weight of methyl ketone (MEK), about 24.07 parts by weight of ethane, about 24.07 parts by weight of n-butyl alcohol and about 24.07 parts by weight of acetylacetone
  • MEK methyl ketone
  • a composition for preparation was prepared.
  • the anti-reflective coating composition was coated with a triacetate cell on a rose film (thickness 80 zm) using a wire bar (9). After drying for 1 minute in a 90 ° C oven, it was irradiated with UV energy of 200 mJ / ciif for 5 seconds to cure the composition.
  • an antireflection film including a hard coat layer formed by erosion in a substrate and including a low refractive index layer covering the hard coat layer was obtained.
  • the antireflection film according to Example 3 includes a binder hardened by erosion on the substrate, a hard coat layer (about 3.1 m) in which inorganic fine particles are dispersed in the binder, a binder cured on the hard coat layer, It was found to include a low refractive index layer (about 0.16 m) in which hollow particles were dispersed in the binder.
  • Pentaerythritol to 100 parts by weight of a (meth) acrylate compound containing 11.33 parts by weight of hexaacrylate (molecular weight 298.3) and an acrylate having a functional group (manufacturer: SK Cytec, product name: DPHA, molecular weight 524) about;
  • Fine particles of silica are dispersed silica sol (dispersion medium: methyl isobutyl ketone and methyl alcohol, the solid content of 40 wt. 0/0, the number average particle diameter of the silica fine particles: 10 nm, Manufacturer: Gaematech, product name: Purisol) about 15.87 parts by weight;
  • the colloid solution dispersed the hollow silica (dispersion medium: methyl isobutyl ketone, solids content 20 wt. 0/0, the number average of the hollow silica mouth diameter: 50 nm, Manufacturer: Catalyst Chemical Industry, Product name: MIBK-sol) about 11.33 parts by weight ;
  • solvent specifically, about 179.63 parts by weight of methyl ketone (MEK), about 24.07 parts by weight of ethanol, about 24.07 parts by weight of n-butyl alcohol and about 24.07 parts by weight of acetylacetone
  • MEK methyl ketone
  • acetylacetone acetylacetone
  • the anti-reflective coating composition was coated on a triacetate cell (Rose 80) using a wire bar (9). It was dried in an oven at 90 ° C. for 1 minute and then irradiated with UV energy of 200 mJ / oif for 5 seconds to cure the composition.
  • an antireflection film including a hard coat layer formed by erosion in a substrate and a low refractive index layer covering the hard coat layer was obtained.
  • the antireflection film according to Example 4 includes a binder hardened by erosion on the substrate 1 and a hard coat layer 2 having inorganic particles dispersed therein (about). 2.78 mi); And a low refractive index layer 3 (about 0.18) in which the hollow particles layer 4 is formed in the binder and the binder cured on the hard coat layer 2.
  • Pentaerythritol to 100 parts by weight of nucleated acrylate (PETA);
  • Silica sol in which silica fine particles are dispersed (dispersion medium: methyl isobutyl ketone and methyl alcohol, solid content 40 wt%, number average particle size: 10 nm, manufacturer: Gaenlatech, product name: Purisol) 15.87 parts by weight
  • the colloid solution dispersed the hollow silica (dispersion medium: methyl isobutyl ketone, high solids content of 20 weight 0/0, the number average particle diameter of the hollow silica:. 50 nm, Manufacturer: Catalyst Chemical Industry, Product name: MIBK-sol) about 11.33 wt. part
  • solvent specifically, about 125.91 parts by weight of methyl isobutyl ketone, about 41.98 parts by weight of ethanol, about 41.98 parts by weight of n-butyl alcohol and about 4L98 parts by weight of acetylacetone
  • solvent specifically, about 125.91 parts by weight of methyl isobutyl ketone, about 41.98 parts by weight of ethanol, about 41.98 parts by weight of n-butyl alcohol and about 4L98 parts by weight of acetylacetone
  • an antireflective film was prepared under the same conditions and methods as in Example 1. And the cross-sectional photograph of the said antireflection film was shown to FIG. 6 (a), and the photograph which expanded and observed the part is shown to FIG. 6 (b).
  • the antireflection film according to Comparative Example 1 did not properly phase separate the composition (see the circle portion of FIG. 6 (a)), and in particular, the hollow particles 4 in the low refractive index layer were excessively As it was spread out (see the circled portion of FIG. 6 (b)), the appearance of the film was opaque, and the scratch resistance and the antireflection effect were also found to be inferior (see Experimental Example).
  • this anti-reflection film of Bar Bridge Example 1 in the total area where the hollow particles are distributed The ratio of the cross-sectional area of the hollow particles to the arbitrary cross-sectional area was found to be about 30 to 60%.
  • HITACHI HITACHI
  • Adhesion evaluation Adhesion to each film was evaluated by cross cut test (ASTM D-3359) using Nichiban tape. Table 1
  • the anti-reflection film according to the embodiments had a lower reflectance and a higher transmittance than the films of the comparative examples, and had excellent scratch resistance and adhesion.

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Abstract

La présente invention concerne un film antiéblouissant, caractérisé en ce que chaque couche du film antiéblouissant présente une force d'adhérence de surface et une résistance à l'abrasion accrues, et en ce que le film antiéblouissant peut être fabriqué par un processus simplifié.
PCT/KR2012/004761 2011-08-26 2012-06-15 Film antiéblouissant Ceased WO2013032118A1 (fr)

Priority Applications (4)

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EP12827086.5A EP2749912B1 (fr) 2011-08-26 2012-06-15 Film antiéblouissant
CN201280041779.0A CN103765252B (zh) 2011-08-26 2012-06-15 防眩光膜
JP2014527052A JP6023810B2 (ja) 2011-08-26 2012-06-15 反射防止フィルム
US13/841,857 US9482789B2 (en) 2011-08-26 2013-03-15 Anti-reflective coating film

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KR10-2011-0085787 2011-08-26
KR20110085788 2011-08-26
KR10-2011-0085788 2011-08-26
KR20110085787 2011-08-26
KR10-2012-0036335 2012-04-06
KR1020120036335A KR101226229B1 (ko) 2011-08-26 2012-04-06 반사 방지 필름

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040073627A (ko) * 2003-02-14 2004-08-21 한국과학기술연구원 투광성 반사방지막 및 그를 포함하는 물품
JP2006106714A (ja) * 2004-09-13 2006-04-20 Fuji Photo Film Co Ltd 反射防止フィルム、偏光板、および液晶表示装置
JP2009053691A (ja) * 2007-08-02 2009-03-12 Dainippon Printing Co Ltd 反射防止フィルム及び反射防止フィルムの製造方法
JP2009151270A (ja) * 2008-07-29 2009-07-09 Toppan Printing Co Ltd 反射防止フィルム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040073627A (ko) * 2003-02-14 2004-08-21 한국과학기술연구원 투광성 반사방지막 및 그를 포함하는 물품
JP2006106714A (ja) * 2004-09-13 2006-04-20 Fuji Photo Film Co Ltd 反射防止フィルム、偏光板、および液晶表示装置
JP2009053691A (ja) * 2007-08-02 2009-03-12 Dainippon Printing Co Ltd 反射防止フィルム及び反射防止フィルムの製造方法
JP2009151270A (ja) * 2008-07-29 2009-07-09 Toppan Printing Co Ltd 反射防止フィルム

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Title
See also references of EP2749912A4 *

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