WO2015030428A1 - Anti-reflective optical laminate - Google Patents

Anti-reflective optical laminate Download PDF

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Publication number
WO2015030428A1
WO2015030428A1 PCT/KR2014/007789 KR2014007789W WO2015030428A1 WO 2015030428 A1 WO2015030428 A1 WO 2015030428A1 KR 2014007789 W KR2014007789 W KR 2014007789W WO 2015030428 A1 WO2015030428 A1 WO 2015030428A1
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WO
WIPO (PCT)
Prior art keywords
layer
optical laminate
high refractive
meth
optical
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PCT/KR2014/007789
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French (fr)
Korean (ko)
Inventor
임거산
이성철
Original Assignee
동우 화인켐 주식회사
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Publication of WO2015030428A1 publication Critical patent/WO2015030428A1/en

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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
    • G02B1/111—Anti-reflection coatings using layers comprising organic materials
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state

Definitions

  • the present invention relates to an antireflective optical laminate, and more particularly, to include a high refractive optical luminescence layer and a low refractive layer, in addition to improving the visibility of the laser pointer when pointing the laser pointer directly to a display.
  • An optical laminated body which shows antireflection property.
  • liquid crystal displays LCDs
  • plasma displays PDPs
  • LCDs liquid crystal displays
  • PDPs plasma displays
  • the present invention has been made to solve the above problems, and one object of the present invention is not only to improve the visibility of the laser pointer when pointing the laser pointer directly to the display but also to provide an optical laminate exhibiting antireflection. It is.
  • Another object of the present invention is to provide an image display device including the optical laminate.
  • the present invention provides an antireflective optical laminate comprising a high refractive optical luminescence layer formed on a substrate and a low refractive layer formed on the high refractive optical luminescence layer.
  • the high refractive optical luminescence layer has a refractive index of 1.54 to 1.70, and the low refractive layer has a refractive index of 1.10 to 1.40.
  • the present invention provides an image display device comprising the antireflective optical laminate.
  • the antireflective optical laminate is attached to any one surface of the display panel.
  • the antireflective optical laminate of the present invention includes a high refractive optical luminescence layer and a low refractive index layer, which not only improves the visibility of the laser pointer when pointing the laser pointer directly to the display, but also exhibits an antireflection performance improvement effect. .
  • the antireflective optical laminate according to one embodiment of the present invention includes a high refractive optical luminescence layer formed on a substrate and a low refractive layer formed on the high refractive optical luminescence layer.
  • the high refractive optical luminescence layer has a refractive index of 1.54 to 1.70 specifically, and includes an optical luminescence material to emit light by stimulation due to light, so that when the laser pointer is directly pointed on the display, it is caused by the light of the laser pointer. A part emits light and can improve the visibility of a laser pointer.
  • the low refractive index layer has a refractive index of specifically 1.10 to 1.40, and exhibits an antireflection performance improving effect due to a difference in refractive index with a high refractive optical luminescence layer.
  • the high refractive optical luminescence layer may be formed by applying a composition for forming a high refractive optical luminescence layer to a substrate.
  • composition for forming a high refractive light luminescence layer of the present invention may include a high refractive light luminescence material, a light transmitting resin, an initiator, and a solvent.
  • the photo luminescence material refers to a material that is stimulated by light to emit light by itself.
  • the said photo luminescence substance is not specifically limited, For example, an photo luminescence pigment, a photo luminescence dye, etc. are mentioned. These can be used individually or in mixture of 2 or more types.
  • photoluminescent pigments examples include organic fluorescent pigments and inorganic fluorescent pigments.
  • photoluminescent dye examples include stilbene derivative dyes, imidazole derivative dyes, benzoimidazole dyes, coumarin derivative dyes, and benzidine dyes.
  • the photo luminescent pigments and dyes may be used in the form of a solid, liquid, powder, etc., preferably may be a powder.
  • the photo luminescent powder may include, for example, a lanthanide complex, an organic phosphor, an inorganic phosphor, and the like, and preferably, a lanthanide complex.
  • the lanthanide complex is a compound containing a lanthanide metal element, and the lanthanide metal element is not particularly limited, and may be, for example, europium, turbium, disprosium, samarium, and the like. It may be europium.
  • Examples of the europium complex include tris (dibenzoylmethane) mono (1,10-phenanthroline) uropium (III) (hereinafter Eu (DBM) 3 Phen) and tris (dynaphthylmethane) mono. (1,10-phenanthroline) europium (III) (henceforth Eu (DNM) 3 Phen) etc. are mentioned.
  • the lanthanide complexes exemplified above may be used alone or in combination of two or more thereof.
  • the maximum excitation wavelength of the photo luminescent material is related to the wavelength of the laser light of the laser pointer and is preferably in the range of 100 nm to 450 nm. If the wavelength of the light is less than 100nm, since it is a light source in the X-ray region, there is a problem that is harmful to the human body when the light source is exposed to the human body. Visibility may be lowered.
  • the maximum excitation wavelength means the wavelength of the excitation light whose fluorescence intensity is the largest value in the fluorescence spectrum measured while changing the wavelength of the excitation light.
  • the content of the optical luminescence material is not particularly limited, and may be included, for example, in an amount of 0.01 to 90 parts by weight based on 100 parts by weight of the total composition for forming an optical luminescence layer, and preferably included in an amount of 0.03 to 50 parts by weight. Can be.
  • the content of the photo luminescence material is 0.01 to 90 parts by weight, it is possible to produce a sufficient photo luminescence effect, other components may be included in an appropriate content to maintain the appropriate hardness.
  • the light transmissive resin may be a photocurable resin
  • the photocurable resin may include a photocurable (meth) acrylate oligomer and / or a monomer.
  • photocurable (meth) acrylate oligomer epoxy (meth) acrylate, urethane (meth) acrylate, etc. can be used, for example, urethane (meth) acrylate is preferable.
  • the urethane (meth) acrylate can be prepared by reacting a polyfunctional (meth) acrylate having a hydroxy group in a molecule with a compound having an isocyanate group in the presence of a catalyst.
  • Specific examples of the (meth) acrylate having a hydroxy group in the molecule include 2-hydroxyethyl (meth) acrylate, 2-hydroxyisopropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, A caprolactone ring-opening hydroxyacrylate, a pentaerythritol tri / tetra (meth) acrylate mixture, a dipentaerythritol penta / hexa (meth) acrylate mixture, etc.
  • the compound having an isocyanate group include 1,4-diisocyanatobutane, 1,6-diisocyanatohexane, 1,8-diisocyanatooctane, 1,12-diisocyanatododecane, 1, 5-diisocyanato-2-methylpentane, trimethyl-1,6-diisocyanatohexane, 1,3-bis (isocyanatomethyl) cyclohexane, trans-1,4-cyclohexene diisocyanate, 4,4 '-Methylenebis (cyclohexyl isocyanate), isophorone diisocyanate, toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, xylene-1,4-diisocyanate, tetramethylxylene-1, 3-diisocyanate, 1,4-diisocyanatobutane, 1,6
  • the said monomer is not specifically limited,
  • the monomer which has unsaturated groups such as a (meth) acryloyl group, a vinyl group, a styryl group, an allyl group, in a molecule
  • numerator can be used as a photocurable functional group, and a (meth) acryloyl group
  • the monomer which has is preferable.
  • the monomer having a (meth) acryloyl group examples include neopentyl glycol acrylate, 1,6-hexanediol (meth) acrylate, propylene glycol di (meth) acrylate, and triethylene glycol di (meth) acryl Rate, dipropylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylol ethane tri (meth) acrylate , 1,2,4-cyclohexane tetra (meth) acrylate, pentaglycerol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol tri (meth) Acrylate, dipentaerythr
  • the above-mentioned photocurable (meth) acrylate oligomer and monomer can be used individually or in mixture of 2 or more types, respectively.
  • the light-transmissive resin is not particularly limited, but may be included in an amount of 0.5 to 80 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the content of the light-transmissive resin is less than 0.5 parts by weight, it is difficult to achieve sufficient hardness, and when it exceeds 80 parts by weight, curling becomes severe.
  • the initiator may be used in the art without limitation. Specifically as the initiator, 2-methyl-1- [4- (methylthio) phenyl] 2-morpholinepropanone-1, diphenyl ketone benzyl dimethyl ketal, 2-hydroxy-2-methyl-1-phenyl -1-one, 4-hydroxycyclophenyl ketone, dimethoxy-2-phenylacetophenone, anthraquinone, fluorene, triphenylamine, carbazole, 3-methylacetophenone, 4-knoloacetophenone, 4, 4-dimethoxy acetophenone, 4, 4- diamino benzophenone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, etc. are mentioned, These can be used individually or in mixture of 2 or more types.
  • the initiator is not particularly limited, but may be used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the content of the initiator is less than 0.1 parts by weight, the curing rate is slow, and if it exceeds 10 parts by weight, cracks may occur due to over curing.
  • the solvent can be used without limitation to those used in the art.
  • the solvent is alcohol-based (methanol, ethanol, isopropanol, butanol, methylcellulose, ethyl solusorb, etc.), acetate-based (ethyl acetate, propyl acetate, butyl acetate, methyl cellosolve acetate, ethyl cellosolve Acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, methoxybutyl acetate, methoxypentyl acetate, etc., ketones (methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone , Diethyl ketone, dipropyl ketone, cyclohexanone and the like), hexane type (hexane, heptane,
  • the content of the solvent is not particularly limited, but may be included in an amount of 10 to 98 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the solvent is less than 10 parts by weight based on the above standard, the viscosity is high, workability is lowered, and if it exceeds 98 parts by weight, it takes a long time in the drying process and there is a problem of low economic efficiency.
  • the composition for forming an optical luminescence layer according to the present invention includes additives such as curing agents, leveling agents, adhesion promoters, antioxidants, and the like, which are commonly used in the art, in addition to the above components; Strength reinforcing nano silicas, inorganic nanoparticles and phos (polyhedral oligomeric silsesquioxanes); Antistatic conductive polymers, nanoparticles and ionic liquids; It may further include organic particles for imparting antiglare properties, inorganic particles.
  • the substrate is not particularly limited as long as the substrate is durable and allows the user to see the display well, and materials used in the art may be used without particular limitation.
  • materials used in the art may be used without particular limitation.
  • glass polyethersulphone (PES), polyacrylate (PAR, polyacrylate), polyetherimide (PEI, polyetherimide), polyethylene naphthalate (PEN, polyethylene naphthalate), polyethylene terephthalate (PET, polyethylene) terephthalate, polyphenylene sulfide (PPS), polyallylate, polyimide, polycarbonate (PC, polycarbonate), cellulose triacetate (TAC), cellulose acetate propionate (CAP, cellulose acetate propionate) may be used.
  • PES polyethersulphone
  • PAR polyacrylate
  • PEI polyetherimide
  • PEN polyethylene naphthalate
  • PET polyethylene terephthalate
  • PPS polyphenylene sulfide
  • PC polycarbonate
  • composition for forming an optical luminescence layer according to the present invention may be applied onto a substrate and cured to form an optical luminescence layer, which may be subjected to a drying step if necessary prior to curing.
  • the coating method is not particularly limited and may be a method commonly used in the art, for example, a fountain coating method, a die coating method, a spin coating method, a spray coating method, a gravure coating method, a roll coating method, a bar Coating method and the like.
  • a drying method is not specifically limited, For example, it can be based on methods, such as natural drying, hot air drying, heat drying, and the like.
  • the hardening method is not specifically limited, For example, it can be based on methods, such as ultraviolet curing and ionizing radiation hardening. Although various active energy can be used for the means, it is more preferable to use ultraviolet rays.
  • an energy source a high pressure mercury lamp, a halogen lamp, a xenon lamp, a metal halide lamp, a nitrogen laser, an electron beam accelerator, a radioactive element, etc. are preferable, for example.
  • As for the irradiation amount of an energy source 50-5000mJ / cm ⁇ 2> is preferable as an integrated exposure amount in an ultraviolet-A area
  • Hardening becomes more enough that the irradiation amount is 50 mJ / cm ⁇ 2> or more, and the hardness of the photoluminescent layer formed becomes more sufficient. Moreover, if it is 5000 mJ / cm ⁇ 2> or less, coloring of the photoluminescent layer formed can be prevented, and transparency can be improved.
  • the present invention by coating a low refractive index layer on the high refractive light luminescence layer, it is possible to prevent the reflection of external light to ensure excellent display visibility at the same time.
  • the material for forming the low refractive index layer can be used without limitation in the art, for example, resin-based materials such as ultraviolet curing acrylic resin, mesoporous silica particles in the resin, hollow silica particles
  • resin-based materials such as ultraviolet curing acrylic resin, mesoporous silica particles in the resin, hollow silica particles
  • a material containing mesoporous or hollow, spherical silicon oxide ultrafine particles can be used. It is preferable that an average particle diameter is about 5-300 nm, and, as for the said silicon oxide ultrafine particle, the range of 10-200 nm is more preferable.
  • the low refractive layer forming material may be applied onto the photoluminescent layer and cured to form a low refractive layer, and may be dried as necessary prior to curing.
  • the coating, drying and curing methods may be the same method as used for forming the photo luminescence layer.
  • the optical laminate according to one embodiment of the present invention may further include at least one optical functional layer.
  • an optical functional layer may be, for example, a hard coating layer, a polarizer, a polarizer protective layer, an anti-fingerprint layer, a retardation layer, an antistatic layer, or the like.
  • the lamination order thereof is not particularly limited and may be appropriately selected, for example, may be formed under an optical luminescence layer, or may be formed on the opposite side of the substrate.
  • the optical laminate according to one embodiment of the present invention may further include a hard coating layer between the substrate and the high refractive optical luminescence layer.
  • One Embodiment of this invention provides the polarizing plate containing the said optical laminated body.
  • One embodiment of the present invention provides an image display device including the optical laminate.
  • An image display apparatus includes the optical laminate attached to any one surface of a display panel.
  • the type of the image display device is not particularly limited, and may be, for example, a liquid crystal display device, a plasma display device, an electroluminescent display device, a cathode ray tube display device, or the like.
  • the display panel is not particularly limited, and may be a configuration commonly used in the art, and may further include a configuration commonly used in the art.
  • Pentaerythritol triacrylate 1.7 parts by weight, high refractive optical luminescence material (Eu (DBM) 3 Phen) 0.3 parts by weight, 48.8 parts by weight of ethyl acetate, 48.8 parts by weight of butyl acetate, photoinitiator (1-hydroxycyclohexylphenyl ketone) 0.2 part by weight and 0.2 part by weight of leveling agent (BYK3530) were blended using a stirrer and filtered using a filter made of PP material to prepare a composition for forming a high refractive photoluminescence layer (refractive index 1.56).
  • Eu (DBM) 3 Phen high refractive optical luminescence material
  • BYK3530 leveling agent
  • a highly refractive photoluminescent composition (refractive index 1.58) was prepared in the same manner except that 1.4 parts by weight of pentaerythritol triacrylate and 0.6 parts by weight of a high refractive optical luminescence material (Eu (DBM) 3 Phen) were changed. .
  • a highly refractive photoluminescent composition (refractive index 1.62) was prepared in the same manner except that 1 part by weight of pentaerythritol triacrylate and 1 part by weight of a high refractive optical luminescence material (Eu (DBM) 3 Phen) were prepared. .
  • a highly refractive photo luminescent composition (refractive index 1.66) was prepared in the same manner except that 0.6 parts by weight of pentaerythritol triacrylate and 1.4 parts by weight of high refractive optical luminescence material (Eu (DBM) 3 Phen) were changed. .
  • the hard coating layer-forming composition obtained in Preparation Example 1 was coated on a 40 um triacetyl cellulose film to have a thickness of 5 um after curing, and then the solvent was dried at a temperature of 70 degrees for 2 minutes. The dried film was irradiated with UV with an integrated light amount of 400 mJ / cm 2 to form a hard coating layer.
  • An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 3 was used to form a high refractive photoluminescence layer.
  • An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 4 was used to form a high refractive photoluminescence layer.
  • An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 5 was used to form the high refractive photoluminescence layer.
  • a film was prepared in the same manner as in Example 1 except for the process of forming the high refractive photoluminescence layer.
  • Films were prepared in the same manner as in Example 1 except that a high refractive coating solution (refractive index 1) having no photoluminescence function was used to form a high refractive photoluminescence layer.
  • a high refractive coating solution reffractive index 1 having no photoluminescence function
  • the 12-degree specular reflectance of the coated surface was UV-Vis. After measuring through the reflectance measuring instrument (UV2450, Shimadzu Corporation), it converted into luminous reflectance Y (%).
  • the display After attaching the optical laminate or film to the upper surface of the display panel, the display was switched to the white mode and the visibility of the laser pointer was evaluated in front of the panel when the 405 nm laser pointer was shined at the panel at a 60 degree angle.
  • ⁇ The position of the laser pointer can be recognized.
  • the antireflective optical laminate according to the present invention obtained in Examples 1 to 4 had a low refractive index by forming a low refractive layer on the high refractive optical luminescence layer, and the visibility of the laser pointer was excellent.

Abstract

The present invention provides an anti-reflective optical laminate comprising a high-refractive photoluminescence layer formed on a substrate and a low-refractive layer formed on the high-refractive photoluminescence layer, and an image display device comprising the same. The optical laminate according to the present invention can not only improve visibility of a laser pointer, but also enhance anti-reflection performance when a user points to an object on a display directly using the laser pointer.

Description

반사방지 광학 적층체Anti-reflective optical stack
본 발명은 반사방지 광학 적층체에 관한 것으로, 보다 상세하게는 고굴절 광 루미네선스층과 저굴절층을 포함하여 레이저 포인터를 디스플레이에 직접 포인팅하는 경우에 레이저 포인터의 시인성을 향상시킬 수 있을 뿐만 아니라 반사방지성을 나타내는 광학 적층체에 관한 것이다.The present invention relates to an antireflective optical laminate, and more particularly, to include a high refractive optical luminescence layer and a low refractive layer, in addition to improving the visibility of the laser pointer when pointing the laser pointer directly to a display. An optical laminated body which shows antireflection property.
종래, 회의나 발표회 등에서의 프레젠테이션에서는 프로젝터를 사용하여 자료 화상을 스크린이나 벽에 투영하는 것이 많이 행해져 왔다. 이때, 발표자는 프레젠테이션 화상 상의 어느 장소에 레이저광을 투사하는 레이저 포인터를 사용하여, 스크린 등을 가리키면서 프레젠테이션을 실시하는 것이 일반적이다. 프로젝터를 사용한 스크린 투영의 경우, 투영되는 화상에 있어서는, 콘트라스트가 저하되거나 화질이 나빠지는 문제가 있다. Background Art Conventionally, in presentations at conferences, presentations, and the like, a large number of projections of document images on screens and walls using projectors have been performed. At this time, it is common for a presenter to make a presentation while pointing a screen etc. using the laser pointer which projects a laser beam in the place of a presentation image. In the case of screen projection using a projector, there is a problem that the contrast is lowered or the image quality deteriorates in the projected image.
한편, 최근에는 액정 디스플레이(LCD)나 플라즈마 디스플레이(PDP)가 70 인치를 초과하는 대형화가 진행되고 있어, 프로젝터 투영이 아니라, 이들 디스플레이 자체에 직접 화상을 표시하게 하여 프레젠테이션을 실시하는 것도 가능해지고 있다. 그러나, 디스플레이에 의한 직접 표시로 프레젠테이션을 실시하는 경우, 디스플레이가 자발광이기 때문에, 레이저 포인터에 의한 레이저광 투사가 잘 보이지 않는다. 또한, 디스플레이 자체의 표시 품위를 향상시키기 위해, 디스플레이 표면에 있어서의 방현성이 향상되면, 레이저 포인터의 투사광의 반사도 억제되기 때문에, 레이저 포인터의 시인성이 좋지 않게 되는 문제가 발생한다.On the other hand, in recent years, liquid crystal displays (LCDs) and plasma displays (PDPs) have been enlarged to more than 70 inches, and not only projector projection but also displays can be made by directly displaying images on these displays themselves. . However, when giving a presentation by direct display by the display, since the display is self-luminous, the projection of the laser beam by the laser pointer is hardly seen. In addition, in order to improve the display quality of the display itself, when the anti-glare property on the display surface is improved, the reflection of the projection light of the laser pointer is also suppressed, which causes a problem of poor visibility of the laser pointer.
최근에는 일본 공개특허 제2001-236181호에 개시된 바와 같이, 레이저 포인터를 디스플레이 상에서 화면 지시 조작을 행하는 포인팅 디바이스로서 사용할 가능성도 있어, 그 시인성은 더욱 더 중요해지고 있다.In recent years, as disclosed in Japanese Patent Laid-Open No. 2001-236181, there is also the possibility of using a laser pointer as a pointing device for performing a screen instruction operation on a display, and its visibility becomes more and more important.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 본 발명의 한 목적은 레이저 포인터를 디스플레이에 직접 포인팅하는 경우에 레이저 포인터의 시인성을 향상시킬 수 있을 뿐만 아니라 반사방지성을 나타내는 광학 적층체를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and one object of the present invention is not only to improve the visibility of the laser pointer when pointing the laser pointer directly to the display but also to provide an optical laminate exhibiting antireflection. It is.
본 발명의 다른 목적은 상기 광학 적층체를 포함하는 화상표시장치를 제공하는 것이다.Another object of the present invention is to provide an image display device including the optical laminate.
한편으로 본 발명은 기재 상에 형성된 고굴절 광 루미네선스층 및 상기 고굴절 광 루미네선스층 상에 형성된 저굴절층을 포함하는 반사방지 광학 적층체를 제공한다.On the other hand, the present invention provides an antireflective optical laminate comprising a high refractive optical luminescence layer formed on a substrate and a low refractive layer formed on the high refractive optical luminescence layer.
본 발명의 일 실시형태에서, 고굴절 광 루미네선스층은 굴절률이 1.54 내지 1.70이고, 저굴절층은 굴절률이 1.10 내지 1.40인 것을 특징으로 한다.In one embodiment of the present invention, the high refractive optical luminescence layer has a refractive index of 1.54 to 1.70, and the low refractive layer has a refractive index of 1.10 to 1.40.
다른 한편으로, 본 발명은 상기 반사방지 광학 적층체를 포함하는 화상표시장치를 제공한다.On the other hand, the present invention provides an image display device comprising the antireflective optical laminate.
본 발명의 일 실시형태에서, 상기 반사방지 광학 적층체는 디스플레이 패널의 어느 일면에 부착된 것을 특징으로 한다.In one embodiment of the present invention, the antireflective optical laminate is attached to any one surface of the display panel.
본 발명의 반사방지 광학 적층체는 고굴절 광 루미네선스층과 저굴절층을 포함하여 레이저 포인터를 디스플레이에 직접 포인팅하는 경우에 레이저 포인터의 시인성을 향상시킬 수 있을 뿐만 아니라 반사방지 성능 향상 효과를 나타낸다. The antireflective optical laminate of the present invention includes a high refractive optical luminescence layer and a low refractive index layer, which not only improves the visibility of the laser pointer when pointing the laser pointer directly to the display, but also exhibits an antireflection performance improvement effect. .
이하, 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명의 일 실시형태에 따른 반사방지 광학 적층체는 기재 상에 형성된 고굴절 광 루미네선스층 및 상기 고굴절 광 루미네선스층 상에 형성된 저굴절층을 포함한다.The antireflective optical laminate according to one embodiment of the present invention includes a high refractive optical luminescence layer formed on a substrate and a low refractive layer formed on the high refractive optical luminescence layer.
상기 고굴절 광 루미네선스층은 굴절률이 구체적으로 1.54 내지 1.70이며, 광 루미네선스 물질을 포함하여 광에 의한 자극으로 발광하므로, 레이저 포인터를 디스플레이에 직접 포인팅하는 경우에 레이저 포인터의 빛에 의해 해당 부위가 발광하여 레이저 포인터의 시인성을 향상시킬 수 있다. The high refractive optical luminescence layer has a refractive index of 1.54 to 1.70 specifically, and includes an optical luminescence material to emit light by stimulation due to light, so that when the laser pointer is directly pointed on the display, it is caused by the light of the laser pointer. A part emits light and can improve the visibility of a laser pointer.
또한, 상기 저굴절층은 굴절률이 구체적으로 1.10 내지 1.40이며, 고굴절 광 루미네선스층과의 굴절률 차이에 의해 반사방지 성능 향상 효과를 나타낸다. In addition, the low refractive index layer has a refractive index of specifically 1.10 to 1.40, and exhibits an antireflection performance improving effect due to a difference in refractive index with a high refractive optical luminescence layer.
본 발명의 일 실시형태에서, 상기 고굴절 광 루미네선스층은 고굴절 광 루미네선스층 형성용 조성물을 기재에 도포하여 형성할 수 있다. In one embodiment of the present invention, the high refractive optical luminescence layer may be formed by applying a composition for forming a high refractive optical luminescence layer to a substrate.
본 발명의 고굴절 광 루미네선스층 형성용 조성물은 고굴절 광 루미네선스 물질, 투광성 수지, 개시제 및 용제를 포함할 수 있다. The composition for forming a high refractive light luminescence layer of the present invention may include a high refractive light luminescence material, a light transmitting resin, an initiator, and a solvent.
본 발명에서 광 루미네선스 물질이란 빛에 의해 자극 받아 스스로 빛을 내는 물질을 말한다. In the present invention, the photo luminescence material refers to a material that is stimulated by light to emit light by itself.
상기 광 루미네선스 물질은 특별히 한정되지 않으며, 예를 들면 광 루미네선스 안료, 광 루미네선스 염료 등을 들 수 있다. 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.The said photo luminescence substance is not specifically limited, For example, an photo luminescence pigment, a photo luminescence dye, etc. are mentioned. These can be used individually or in mixture of 2 or more types.
상기 광 루미네선스 안료는 예를 들면 유기형광안료, 무기형광안료 등을 들 수 있다. 상기 광 루미네선스 염료는 예를 들면 스틸벤 유도체계 염료, 이미다졸 유도체계 염료, 벤조이미다졸계 염료, 쿠마린 유도체계 염료, 벤지딘계 염료 등을 들 수 있다. Examples of the photoluminescent pigments include organic fluorescent pigments and inorganic fluorescent pigments. Examples of the photoluminescent dye include stilbene derivative dyes, imidazole derivative dyes, benzoimidazole dyes, coumarin derivative dyes, and benzidine dyes.
상기 광 루미네선스 안료 및 염료는 고상, 액상, 파우더 등의 형태로 사용될 수 있고, 바람직하게는 파우더일 수 있다.The photo luminescent pigments and dyes may be used in the form of a solid, liquid, powder, etc., preferably may be a powder.
광 루미네선스 파우더는 예를 들면 란타나이드 복합체, 유기형광체 및 무기형광체 등을 들 수 있으며, 바람직하게는 란타나이드 복합체일 수 있다.The photo luminescent powder may include, for example, a lanthanide complex, an organic phosphor, an inorganic phosphor, and the like, and preferably, a lanthanide complex.
상기 란타나이드 복합체는 란타나이드계 금속 원소를 포함하는 화합물로서, 란타나이드계 금속 원소는 특별히 한정되지 않으며, 예를 들면 유로피움, 터비움, 디스프로시움, 사마리움 등일 수 있으며, 바람직하게는 유로피움일 수 있다. 상기 유로피움 복합체로는, 예를 들면 트리스(다이벤조일메탄)모노(1,10-페난트롤린)유로피움(III)(이하, Eu(DBM)3Phen), 트리스(다이나프틸메탄)모노(1,10-페난트롤린)유로피움(III)(이하, Eu(DNM)3Phen) 등을 들 수 있다. 상기 예시된 란타나이드 복합체는 각각 단독으로 또는 2종 이상을 혼합하여 사용할 수 있다.The lanthanide complex is a compound containing a lanthanide metal element, and the lanthanide metal element is not particularly limited, and may be, for example, europium, turbium, disprosium, samarium, and the like. It may be europium. Examples of the europium complex include tris (dibenzoylmethane) mono (1,10-phenanthroline) uropium (III) (hereinafter Eu (DBM) 3 Phen) and tris (dynaphthylmethane) mono. (1,10-phenanthroline) europium (III) (henceforth Eu (DNM) 3 Phen) etc. are mentioned. The lanthanide complexes exemplified above may be used alone or in combination of two or more thereof.
상기 광 루미네선스 물질의 최대 여기 파장은 레이저 포인터의 레이저 빛의 파장과 관련되며, 100nm 내지 450nm 범위 내에 있는 것이 바람직하다. 상기 빛의 파장이 100nm 미만이면, X선 영역의 광원이므로 광원이 인체에 노출되었을 경우 인체에 유해한 문제가 있으며, 450nm를 초과하면 가시광선 영역의 광원이므로 디스플레이로부터 나오는 백라이트 빛으로도 발광이 발생하여 시인성이 저하될 수 있다. The maximum excitation wavelength of the photo luminescent material is related to the wavelength of the laser light of the laser pointer and is preferably in the range of 100 nm to 450 nm. If the wavelength of the light is less than 100nm, since it is a light source in the X-ray region, there is a problem that is harmful to the human body when the light source is exposed to the human body. Visibility may be lowered.
본 명세서에서 최대 여기 파장은 여기광의 파장을 변화시키면서 측정한 형광 스펙트럼에서 형광 강도가 가장 큰 값이 되는 여기광의 파장을 의미한다.In the present specification, the maximum excitation wavelength means the wavelength of the excitation light whose fluorescence intensity is the largest value in the fluorescence spectrum measured while changing the wavelength of the excitation light.
상기 광 루미네선스 물질의 함량은 특별히 한정되지 않으며, 예를 들면 상기 광루미네선스층 형성용 조성물 전체 100중량부에 대하여 0.01 내지 90중량부로 포함될 수 있고, 바람직하게는 0.03 내지 50중량부로 포함될 수 있다. 광 루미네선스 물질의 함량이 0.01 내지 90중량부인 경우, 충분한 광 루미네선스 효과를 낼 수 있으며, 그 외 성분이 적정 함량으로 포함되어 적정의 경도를 유지할 수 있다.The content of the optical luminescence material is not particularly limited, and may be included, for example, in an amount of 0.01 to 90 parts by weight based on 100 parts by weight of the total composition for forming an optical luminescence layer, and preferably included in an amount of 0.03 to 50 parts by weight. Can be. When the content of the photo luminescence material is 0.01 to 90 parts by weight, it is possible to produce a sufficient photo luminescence effect, other components may be included in an appropriate content to maintain the appropriate hardness.
상기 투광성 수지는 광경화형 수지일 수 있으며, 상기 광경화형 수지는 광경화형 (메타)아크릴레이트 올리고머 및/또는 모노머를 포함할 수 있다.The light transmissive resin may be a photocurable resin, and the photocurable resin may include a photocurable (meth) acrylate oligomer and / or a monomer.
상기 광경화형 (메타)아크릴레이트 올리고머로는, 예를 들면 에폭시 (메타)아크릴레이트, 우레탄 (메타)아크릴레이트 등을 사용할 수 있으며, 우레탄 (메타)아크릴레이트가 바람직하다.As said photocurable (meth) acrylate oligomer, epoxy (meth) acrylate, urethane (meth) acrylate, etc. can be used, for example, urethane (meth) acrylate is preferable.
상기 우레탄 (메타)아크릴레이트는 분자 내에 히드록시기를 갖는 다관능 (메타)아크릴레이트와 이소시아네이트기를 갖는 화합물을 촉매 존재 하에서 반응시켜 제조할 수 있다. 상기 분자 내에 히드록시기를 갖는 (메타)아크릴레이트의 구체적인 예로는, 2-히드록시에틸(메타)아크릴레이트, 2-히드록시이소프로필(메타)아크릴레이트, 4-히드록시부틸(메타)아크릴레이트, 카프로락톤 개환 히드록시아크릴레이트, 펜타에리스리톨트리/테트라(메타)아크릴레이트 혼합물, 디펜타에리스리톨펜타/헥사(메타)아크릴레이트 혼합물 등을 들 수 있으며, 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다. 또한 상기 이소시아네이트기를 갖는 화합물의 구체적인 예로는, 1,4-디이소시아나토부탄, 1,6-디이소시아나토헥산, 1,8-디이소시아나토옥탄, 1,12-디이소시아나토도데칸, 1,5-디이소시아나토-2-메틸펜탄, 트리메틸-1,6-디이소시아나토헥산, 1,3-비스(이소시아나토메틸)시클로헥산, 트랜스-1,4-시클로헥센디이소시아네이트, 4,4'-메틸렌비스(시클로헥실이소시아네이트), 이소포론디이소시아네이트, 톨루엔-2,4-디이소시아네이트, 톨루엔-2,6-디이소시아네이트, 자일렌-1,4-디이소시아네이트, 테트라메틸자일렌-1,3-디이소시아네이트, 1-클로로메틸-2,4-디이소시아네이트, 4,4'-메틸렌비스(2,6-디메틸페닐이소시아네이트), 4,4'-옥시비스(페닐이소시아네이트), 헥사메틸렌디이소시아네이트로부터 유도되는 3관능 이소시아네이트, 트리메탄프로판올어덕트톨루엔디이소시아네이트 등을 들 수 있으며, 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.The urethane (meth) acrylate can be prepared by reacting a polyfunctional (meth) acrylate having a hydroxy group in a molecule with a compound having an isocyanate group in the presence of a catalyst. Specific examples of the (meth) acrylate having a hydroxy group in the molecule include 2-hydroxyethyl (meth) acrylate, 2-hydroxyisopropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, A caprolactone ring-opening hydroxyacrylate, a pentaerythritol tri / tetra (meth) acrylate mixture, a dipentaerythritol penta / hexa (meth) acrylate mixture, etc. can be mentioned, These can be used individually or in mixture of 2 or more types. Specific examples of the compound having an isocyanate group include 1,4-diisocyanatobutane, 1,6-diisocyanatohexane, 1,8-diisocyanatooctane, 1,12-diisocyanatododecane, 1, 5-diisocyanato-2-methylpentane, trimethyl-1,6-diisocyanatohexane, 1,3-bis (isocyanatomethyl) cyclohexane, trans-1,4-cyclohexene diisocyanate, 4,4 '-Methylenebis (cyclohexyl isocyanate), isophorone diisocyanate, toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, xylene-1,4-diisocyanate, tetramethylxylene-1, 3-diisocyanate, 1-chloromethyl-2,4-diisocyanate, 4,4'-methylenebis (2,6-dimethylphenylisocyanate), 4,4'-oxybis (phenylisocyanate), hexamethylene diisocyanate Trifunctional Isocyanates Derived from Trimethanepropanol Adduct Toluene Diisosi It may be made of carbonate and the like, which may be used either alone or in mixture of two or more.
상기 모노머는 특별히 한정되지 않으며, 예를 들면 광경화형 관능기로 (메타)아크릴로일기, 비닐기, 스티릴기, 알릴기 등의 불포화 기를 분자 내에 갖는 모노머를 사용할 수 있으며, (메타)아크릴로일기를 갖는 모노머가 바람직하다. The said monomer is not specifically limited, For example, the monomer which has unsaturated groups, such as a (meth) acryloyl group, a vinyl group, a styryl group, an allyl group, in a molecule | numerator can be used as a photocurable functional group, and a (meth) acryloyl group The monomer which has is preferable.
상기 (메타)아크릴로일기를 갖는 모노머의 구체적인 예로는, 네오펜틸글리콜아크릴레이트, 1,6-헥산디올(메타)아크릴레이트, 프로필렌글리콜디(메타)아크릴레이트, 트리에틸렌글리콜디(메타)아크릴레이트, 디프로필렌글리콜디(메타)아크릴레이트, 폴리에틸렌글리콜디(메타)아크릴레이트, 폴리프로필렌글리콜디(메타)아크릴레이트, 트리메틸올프로판트리(메타)아크릴레이트, 트리메틸올에탄트리(메타)아크릴레이트, 1,2,4-시클로헥산테트라(메타)아크릴레이트, 펜타글리세롤트리(메타)아크릴레이트, 펜타에리스리톨테트라(메타)아크릴레이트, 펜타에리스리톨트리(메타)아크릴레이트, 디펜타에리스리톨트리(메타)아크릴레이트, 디펜타에리스리톨펜타(메타)아크릴레이트, 디펜타에리스리톨테트라(메타)아크릴레이트, 디펜타에리스리톨헥사(메타)아크릴레이트, 트리펜타에리스리톨트리(메타)아크릴레이트, 트리펜타에리스리톨헥사트리(메타)아크릴레이트, 비스(2-하이드록시에틸)이소시아누레이트디(메타)아크릴레이트, 하이드록시에틸(메타)아크릴레이트, 하이드록시프로필(메타)아크릴레이트, 하이드록시부틸(메타)아크릴레이트, 이소옥틸(메타)아크릴레이트, 이소-덱실(메타)아크릴레이트, 스테아릴(메타)아크릴레이트, 테트라하이드로퍼푸릴(메타)아크릴레이트, 페녹시에틸(메타)아크릴레이트, 이소보네올(메타)아크릴레이트 등을 들 수 있으며, 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.Specific examples of the monomer having a (meth) acryloyl group include neopentyl glycol acrylate, 1,6-hexanediol (meth) acrylate, propylene glycol di (meth) acrylate, and triethylene glycol di (meth) acryl Rate, dipropylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylol ethane tri (meth) acrylate , 1,2,4-cyclohexane tetra (meth) acrylate, pentaglycerol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol tri (meth) Acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) arc Rate, tripentaerythritol tri (meth) acrylate, tripentaerythritol hexatri (meth) acrylate, bis (2-hydroxyethyl) isocyanurate di (meth) acrylate, hydroxyethyl (meth) acrylate , Hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, isooctyl (meth) acrylate, iso-decyl (meth) acrylate, stearyl (meth) acrylate, tetrahydrofurfuryl (meth ) Acrylate, phenoxyethyl (meth) acrylate, isobornol (meth) acrylate, etc., These can be used individually or in mixture of 2 or more types.
상기 예시한 광경화형 (메타)아크릴레이트 올리고머 및 모노머는 각각 단독으로 또는 2종 이상을 혼합하여 사용할 수 있다.The above-mentioned photocurable (meth) acrylate oligomer and monomer can be used individually or in mixture of 2 or more types, respectively.
상기 투광성 수지는 특별히 제한되지는 않으나, 상기 광루미네선스층 형성용 조성물 전체 100중량부에 대하여 0.5 내지 80중량부로 포함될 수 있다. 상기 투광성 수지의 함량이 0.5중량부 미만이면 충분한 경도 향상을 도모하기 어렵고, 80중량부를 초과할 경우 컬링이 심해지는 문제가 있다.The light-transmissive resin is not particularly limited, but may be included in an amount of 0.5 to 80 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the content of the light-transmissive resin is less than 0.5 parts by weight, it is difficult to achieve sufficient hardness, and when it exceeds 80 parts by weight, curling becomes severe.
상기 개시제는 당해 분야에서 사용되는 것을 제한 없이 사용할 수 있다. 상기 개시제로는, 구체적으로 2-메틸-1-[4-(메틸티오)페닐]2-모폴린프로판온-1, 디페닐케톤 벤질디메틸케탈, 2-히드록시-2-메틸-1-페닐-1-온, 4-히드록시시클로페닐케톤, 디메톡시-2-페닐아세토페논, 안트라퀴논, 플루오렌, 트리페닐아민, 카바졸, 3-메틸아세토페논, 4-크놀로아세토페논, 4,4-디메톡시아세토페논, 4,4-디아미노벤조페논, 1-히드록시시클로헥실페닐케톤, 벤조페논 등을 들 수 있으며, 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.The initiator may be used in the art without limitation. Specifically as the initiator, 2-methyl-1- [4- (methylthio) phenyl] 2-morpholinepropanone-1, diphenyl ketone benzyl dimethyl ketal, 2-hydroxy-2-methyl-1-phenyl -1-one, 4-hydroxycyclophenyl ketone, dimethoxy-2-phenylacetophenone, anthraquinone, fluorene, triphenylamine, carbazole, 3-methylacetophenone, 4-knoloacetophenone, 4, 4-dimethoxy acetophenone, 4, 4- diamino benzophenone, 1-hydroxycyclohexyl phenyl ketone, benzophenone, etc. are mentioned, These can be used individually or in mixture of 2 or more types.
상기 개시제는 특별히 제한되지는 않으나, 상기 광루미네선스층 형성용 조성물 전체 100중량부에 대하여 0.1 내지 10중량부 사용할 수 있다. 상기 개시제의 함량이 0.1중량부 미만이면 경화 속도가 늦고, 10중량부를 초과할 경우 과경화로 크랙이 발생할 수 있다.The initiator is not particularly limited, but may be used in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the content of the initiator is less than 0.1 parts by weight, the curing rate is slow, and if it exceeds 10 parts by weight, cracks may occur due to over curing.
상기 용제는 당해 분야에서 사용되는 것을 제한 없이 사용할 수 있다. 구체적으로, 상기 용제는 알코올계(메탄올, 에탄올, 이소프로판올, 부탄올, 메틸셀루소브, 에틸솔루소브 등), 아세테이트계(에틸아세테이트, 프로필아세테이트, 부틸아세테이트, 메틸셀로솔브아세테이트, 에틸셀로솔브아세테이트, 프로필렌글리콜모노메틸에테르아세테이트, 프로필렌글리콜모노에틸에테르아세테이트, 프로필렌글리콜모노프로필에테르아세테이트, 메톡시부틸아세테이트, 메톡시펜틸아세테이트 등), 케톤계(메틸에틸케톤, 메틸부틸케톤, 메틸이소부틸케톤, 디에틸케톤, 디프로필케톤, 시클로헥사논 등), 헥산계(헥산, 헵탄, 옥탄 등), 벤젠계(벤젠, 톨루엔, 자일렌 등) 등이 사용될 수 있다. 상기 예시된 용제는 각각 단독으로 또는 2종 이상을 혼합하여 사용할 수 있다.The solvent can be used without limitation to those used in the art. Specifically, the solvent is alcohol-based (methanol, ethanol, isopropanol, butanol, methylcellulose, ethyl solusorb, etc.), acetate-based (ethyl acetate, propyl acetate, butyl acetate, methyl cellosolve acetate, ethyl cellosolve Acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, methoxybutyl acetate, methoxypentyl acetate, etc., ketones (methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone , Diethyl ketone, dipropyl ketone, cyclohexanone and the like), hexane type (hexane, heptane, octane and the like), benzene type (benzene, toluene, xylene and the like) and the like can be used. The solvents exemplified above may be used alone or in combination of two or more thereof.
상기 용제의 함량은 특별히 제한되지는 않으나, 상기 광루미네선스층 형성용 조성물 전체 100중량부에 대하여 10 내지 98중량부 포함될 수 있다. 상기 용제가 상기 기준으로 10중량부 미만이면 점도가 높아 작업성이 떨어지고, 98중량부를 초과할 경우에는 건조 과정에서 시간이 많이 소요되고 경제성이 떨어지는 문제가 있다.The content of the solvent is not particularly limited, but may be included in an amount of 10 to 98 parts by weight based on 100 parts by weight of the total composition for forming the photoluminescence layer. If the solvent is less than 10 parts by weight based on the above standard, the viscosity is high, workability is lowered, and if it exceeds 98 parts by weight, it takes a long time in the drying process and there is a problem of low economic efficiency.
본 발명에 따른 광 루미네센스층 형성용 조성물은 상기 성분 외에도 당해 분야에서 통상적으로 사용되는 경화제, 레벨링제, 밀착 촉진제, 산화 방지제 등의 첨가제; 강도 보강용 나노 실리카, 무기 나노입자 및 포스(폴리헤드럴 올리고머릭 실세스퀴옥산); 대전 방지용 전도성 고분자, 나노입자 및 이온성액체; 방현성 부여용 유기 입자, 무기 입자 등을 더 포함할 수 있다.The composition for forming an optical luminescence layer according to the present invention includes additives such as curing agents, leveling agents, adhesion promoters, antioxidants, and the like, which are commonly used in the art, in addition to the above components; Strength reinforcing nano silicas, inorganic nanoparticles and phos (polyhedral oligomeric silsesquioxanes); Antistatic conductive polymers, nanoparticles and ionic liquids; It may further include organic particles for imparting antiglare properties, inorganic particles.
본 발명의 일 실시형태에서, 상기 기재는 내구성이 크고, 사용자가 디스플레이를 잘 볼 수 있도록 하는 물질이라면 특별히 한정되지 않으며, 당해 분야에서 사용되는 소재가 특별한 제한 없이 사용될 수 있다. 예를 들면, 유리, 폴리에테르술폰(PES, polyethersulphone), 폴리아크릴레이트(PAR, polyacrylate), 폴리에테르이미드(PEI, polyetherimide), 폴리에틸렌 나프탈레이트(PEN, polyethylene naphthalate), 폴리에틸렌 테레프탈레이트(PET, polyethylene terephthalate), 폴리페닐렌 설파이드(PPS, polyphenylene sulfide), 폴리아릴레이트(polyallylate), 폴리이미드(polyimide), 폴리카보네이트(PC, polycarbonate), 셀룰로오스 트리아세테이트(TAC), 셀룰로오스 아세테이트 프로피오네이트(CAP, cellulose acetate propionate) 등이 사용될 수 있다.In one embodiment of the present invention, the substrate is not particularly limited as long as the substrate is durable and allows the user to see the display well, and materials used in the art may be used without particular limitation. For example, glass, polyethersulphone (PES), polyacrylate (PAR, polyacrylate), polyetherimide (PEI, polyetherimide), polyethylene naphthalate (PEN, polyethylene naphthalate), polyethylene terephthalate (PET, polyethylene) terephthalate, polyphenylene sulfide (PPS), polyallylate, polyimide, polycarbonate (PC, polycarbonate), cellulose triacetate (TAC), cellulose acetate propionate (CAP, cellulose acetate propionate) may be used.
본 발명에 따른 광 루미네선스층 형성용 조성물을 기재 상에 도포하고 경화하여 광 루미네선스층을 형성할 수 있는데, 경화에 앞서 필요에 따라 건조 단계를 거칠 수 있다.The composition for forming an optical luminescence layer according to the present invention may be applied onto a substrate and cured to form an optical luminescence layer, which may be subjected to a drying step if necessary prior to curing.
상기 도포 방법은 특별히 한정되지 않고 당해 분야에서 통상적으로 사용되는 방법에 의할 수 있으며, 예를 들면 파운틴 코팅법, 다이 코팅법, 스핀 코팅법, 스프레이 코팅법, 그라비아 코팅법, 롤 코팅법, 바 코팅법 등이 있다.The coating method is not particularly limited and may be a method commonly used in the art, for example, a fountain coating method, a die coating method, a spin coating method, a spray coating method, a gravure coating method, a roll coating method, a bar Coating method and the like.
건조 방법은 특별히 한정되지 않으며, 예를 들면 자연 건조, 열풍 건조, 가열 건조 등의 방법에 의할 수 있다.A drying method is not specifically limited, For example, it can be based on methods, such as natural drying, hot air drying, heat drying, and the like.
경화 방법은 특별히 한정되지 않으며, 예를 들면 자외선 경화, 전리 방사선 경화 등의 방법에 의할 수 있다. 그 수단에는 각종 활성 에너지를 사용할 수 있는데, 자외선을 사용하는 것이 보다 바람직하다. 에너지선원으로는, 예를 들어 고압 수은 램프, 할로겐 램프, 크세논 램프, 메탈 할라이드 램프, 질소 레이저, 전자선 가속 장치, 방사성 원소 등이 바람직하다. 에너지선원의 조사량은, 자외선 A영역에서의 적산 노광량으로서 50 내지 5000mJ/㎠가 바람직하다. 조사량이 50mJ/㎠ 이상이면 경화가 보다 충분해져, 형성되는 광 루미네선스층의 경도가 보다 충분한 것이 된다. 또한, 5000mJ/㎠ 이하이면, 형성되는 광 루미네선스층의 착색을 방지할 수 있어, 투명성을 향상시킬 수 있다.The hardening method is not specifically limited, For example, it can be based on methods, such as ultraviolet curing and ionizing radiation hardening. Although various active energy can be used for the means, it is more preferable to use ultraviolet rays. As an energy source, a high pressure mercury lamp, a halogen lamp, a xenon lamp, a metal halide lamp, a nitrogen laser, an electron beam accelerator, a radioactive element, etc. are preferable, for example. As for the irradiation amount of an energy source, 50-5000mJ / cm <2> is preferable as an integrated exposure amount in an ultraviolet-A area | region. Hardening becomes more enough that the irradiation amount is 50 mJ / cm <2> or more, and the hardness of the photoluminescent layer formed becomes more sufficient. Moreover, if it is 5000 mJ / cm <2> or less, coloring of the photoluminescent layer formed can be prevented, and transparency can be improved.
본 발명에서는, 상기 고굴절 광 루미네선스층 상에 저굴절층을 코팅함으로써, 외광의 반사를 방지하여 우수한 디스플레이 시인성을 동시에 확보할 수 있다.In the present invention, by coating a low refractive index layer on the high refractive light luminescence layer, it is possible to prevent the reflection of external light to ensure excellent display visibility at the same time.
본 발명의 일 실시형태에서, 상기 저굴절층의 형성 재료는 당해 분야에서 사용되는 것을 제한 없이 사용할 수 있으며, 예를 들어 자외선 경화형 아크릴 수지 등의 수지계 재료, 수지 중에 메조포러스 실리카 입자, 중공 실리카 입자 등의 무기 미립자를 분산시킨 하이브리드계 재료, 테트라에톡시실란, 티탄테트라에톡시드 등의 금속 알콕시드를 사용한 졸-겔계 재료 등을 사용할 수 있다. In one embodiment of the present invention, the material for forming the low refractive index layer can be used without limitation in the art, for example, resin-based materials such as ultraviolet curing acrylic resin, mesoporous silica particles in the resin, hollow silica particles The hybrid type material which disperse | distributed inorganic microparticles | fine-particles, such as these, and the sol-gel type material using metal alkoxides, such as tetraethoxysilane and titanium tetraethoxide, etc. can be used.
바람직하게는 메조포러스 혹은 중공이고 구상인 산화규소 초미립자가 함유되어 있는 재료를 사용할 수 있다. 상기 산화규소 초미립자는, 평균 입자경이 5 내지 300㎚ 정도인 것이 바람직하고, 10 내지 200㎚의 범위가 보다 바람직하다.Preferably, a material containing mesoporous or hollow, spherical silicon oxide ultrafine particles can be used. It is preferable that an average particle diameter is about 5-300 nm, and, as for the said silicon oxide ultrafine particle, the range of 10-200 nm is more preferable.
상기 저굴절층 형성 재료를 상기 광 루미네선스층 상에 도포하고 경화하여 저굴절층을 형성할 수 있으며, 경화에 앞서 필요에 따라 건조 단계를 거칠 수 있다.The low refractive layer forming material may be applied onto the photoluminescent layer and cured to form a low refractive layer, and may be dried as necessary prior to curing.
상기 도포, 건조 및 경화 방법은 상기 광 루미네선스층 형성시와 동일한 방법을 사용할 수 있다. The coating, drying and curing methods may be the same method as used for forming the photo luminescence layer.
본 발명의 일 실시형태에 따른 광학 적층체는 적어도 1층의 광학기능층을 더 포함할 수 있다. 이러한 광학기능층은 예를 들면, 하드코팅층, 편광자, 편광자 보호층, 지문방지층, 위상차층, 대전방지층 등일 수 있다. 이들의 적층 순서는 특별히 한정되지 않고 적절히 선택될 수 있으며, 예를 들면 광 루미네선스층 하에 형성될 수도 있으며, 또는 기재의 반대 면에 형성될 수도 있다. The optical laminate according to one embodiment of the present invention may further include at least one optical functional layer. Such an optical functional layer may be, for example, a hard coating layer, a polarizer, a polarizer protective layer, an anti-fingerprint layer, a retardation layer, an antistatic layer, or the like. The lamination order thereof is not particularly limited and may be appropriately selected, for example, may be formed under an optical luminescence layer, or may be formed on the opposite side of the substrate.
구체적으로, 본 발명의 일 실시형태에 따른 광학 적층체는 기재와 고굴절 광 루미네선스층 사이에 하드코팅층을 추가로 포함할 수 있다. Specifically, the optical laminate according to one embodiment of the present invention may further include a hard coating layer between the substrate and the high refractive optical luminescence layer.
본 발명의 일 실시형태는 상기 광학 적층체를 포함하는 편광판을 제공한다. One Embodiment of this invention provides the polarizing plate containing the said optical laminated body.
본 발명의 일 실시형태는 상기 광학 적층체를 포함하는 화상표시장치를 제공한다.One embodiment of the present invention provides an image display device including the optical laminate.
본 발명의 일 실시형태에 따른 화상표시장치는 디스플레이 패널의 어느 일면에 부착된 상기 광학 적층체를 포함한다.An image display apparatus according to an embodiment of the present invention includes the optical laminate attached to any one surface of a display panel.
상기 화상표시장치의 종류는 특별히 한정되지 않고, 예를 들면 액정표시장치, 플라스마표시장치, 전계발광표시장치, 음극선관표시장치 등일 수 있다.The type of the image display device is not particularly limited, and may be, for example, a liquid crystal display device, a plasma display device, an electroluminescent display device, a cathode ray tube display device, or the like.
상기 디스플레이 패널은 특별히 한정되지 않고, 당해 분야에서 통상적으로 사용되는 구성일 수 있으며, 그 외에도 당해 분야에서 통상적으로 사용되는 구성을 더 포함할 수 있다.The display panel is not particularly limited, and may be a configuration commonly used in the art, and may further include a configuration commonly used in the art.
이하, 실시예, 비교예 및 실험예에 의해 본 발명을 보다 구체적으로 설명하고자 한다. 이들 실시예, 비교예 및 실험예는 오직 본 발명을 설명하기 위한 것으로, 본 발명의 범위가 이들에 국한되지 않는다는 것은 당업자에게 있어서 자명하다.Hereinafter, the present invention will be described in more detail with reference to Examples, Comparative Examples and Experimental Examples. These examples, comparative examples and experimental examples are only for illustrating the present invention, it is apparent to those skilled in the art that the scope of the present invention is not limited thereto.
제조예 1: 하드코팅층 형성용 조성물의 제조Preparation Example 1 Preparation of a Composition for Forming a Hard Coating Layer
펜타에리스리톨트리아크릴레이트 15.5중량부, 우레탄 아크릴레이트(SC2153) 15중량부, 에틸아세테이트 33.5중량부, 부틸아세테이트 33.5중량부, 광개시제(1-히드록시사이클로헥실페닐케톤) 2중량부 및 레벨링제(BYK3530) 0.5중량부를 교반기를 이용하여 배합하고, PP재질의 필터를 이용하여 여과하여 하드코팅층 형성용 조성물을 제조하였다.15.5 parts by weight of pentaerythritol triacrylate, 15 parts by weight of urethane acrylate (SC2153), 33.5 parts by weight of ethyl acetate, 33.5 parts by weight of butyl acetate, 2 parts by weight of a photoinitiator (1-hydroxycyclohexylphenyl ketone) and a leveling agent (BYK3530) ) 0.5 parts by weight was mixed using a stirrer, and filtered using a PP filter to prepare a composition for forming a hard coating layer.
제조예 2: 고굴절 광 루미네선스층 형성용 조성물의 제조Preparation Example 2 Preparation of Composition for Forming High Refractive Photoluminescence Layer
펜타에리스리톨트리아크릴레이트 1.7중량부, 고굴절 광 루미네선스 물질(Eu(DBM)3Phen) 0.3중량부, 에틸아세테이트 48.8중량부, 부틸아세테이트 48.8중량부, 광개시제(1-히드록시사이클로헥실페닐케톤) 0.2중량부 및 레벨링제(BYK3530) 0.2중량부를 교반기를 이용하여 배합하고, PP재질의 필터를 이용하여 여과하여 고굴절 광루미네선스층 형성용 조성물(굴절율 1.56)을 제조하였다.Pentaerythritol triacrylate 1.7 parts by weight, high refractive optical luminescence material (Eu (DBM) 3 Phen) 0.3 parts by weight, 48.8 parts by weight of ethyl acetate, 48.8 parts by weight of butyl acetate, photoinitiator (1-hydroxycyclohexylphenyl ketone) 0.2 part by weight and 0.2 part by weight of leveling agent (BYK3530) were blended using a stirrer and filtered using a filter made of PP material to prepare a composition for forming a high refractive photoluminescence layer (refractive index 1.56).
제조예 3: 고굴절 광 루미네선스층 형성용 조성물의 제조Preparation Example 3 Preparation of Composition for Forming High Refractive Light Luminescence Layer
제조예 2에서 펜타에리스리톨트리아크릴레이트 1.4중량부, 고굴절 광 루미네선스 물질(Eu(DBM)3Phen) 0.6중량부로 변경한 것 이외에는 동일한 방법으로 고굴절 광루미네선스 조성물(굴절율 1.58)을 제조하였다.A highly refractive photoluminescent composition (refractive index 1.58) was prepared in the same manner except that 1.4 parts by weight of pentaerythritol triacrylate and 0.6 parts by weight of a high refractive optical luminescence material (Eu (DBM) 3 Phen) were changed. .
제조예 4: 고굴절 광 루미네선스층 형성용 조성물의 제조Preparation Example 4 Preparation of Composition for Forming a High Refractive Light Luminescence Layer
제조예 2에서 펜타에리스리톨트리아크릴레이트 1중량부, 고굴절 광 루미네선스 물질(Eu(DBM)3Phen) 1중량부로 변경한 것 이외에는 동일한 방법으로 고굴절 광루미네선스 조성물(굴절율 1.62)을 제조하였다.A highly refractive photoluminescent composition (refractive index 1.62) was prepared in the same manner except that 1 part by weight of pentaerythritol triacrylate and 1 part by weight of a high refractive optical luminescence material (Eu (DBM) 3 Phen) were prepared. .
제조예 5: 고굴절 광 루미네선스층 형성용 조성물의 제조Preparation Example 5 Preparation of Composition for Forming High Refractive Photoluminescence Layer
제조예 2에서 펜타에리스리톨트리아크릴레이트 0.6중량부, 고굴절 광 루미네선스 물질(Eu(DBM)3Phen) 1.4중량부로 변경한 것 이외에는 동일한 방법으로 고굴절 광루미네선스 조성물(굴절율 1.66)을 제조하였다.A highly refractive photo luminescent composition (refractive index 1.66) was prepared in the same manner except that 0.6 parts by weight of pentaerythritol triacrylate and 1.4 parts by weight of high refractive optical luminescence material (Eu (DBM) 3 Phen) were changed. .
실시예 1: 반사방지 광학 적층체의 제조Example 1 Preparation of Anti-Reflective Optical Laminates
40um 트리아세틸 셀룰로우스 필름 상에 상기 제조예 1에서 수득한 하드코팅층 형성용 조성물을 경화 후 5um 두께가 되도록 코팅한 후, 70도 온도로 2분 동안 용제를 건조시켰다. 건조된 필름에 적산광량 400mJ/cm2로 UV를 조사하여 하드 코팅층을 형성하였다. The hard coating layer-forming composition obtained in Preparation Example 1 was coated on a 40 um triacetyl cellulose film to have a thickness of 5 um after curing, and then the solvent was dried at a temperature of 70 degrees for 2 minutes. The dried film was irradiated with UV with an integrated light amount of 400 mJ / cm 2 to form a hard coating layer.
형성된 하드코팅층 상에 제조예 2의 고굴절 광 루미네선스층 형성용 조성물을 경화 후 80nm 두께가 되도록 코팅한 후, 상기와 동일하게 건조, UV 조사를 실시하여 고굴절 광루미네선스층을 형성하였다. After coating the composition for forming a high refractive optical luminescence layer of Preparation Example 2 on the formed hard coating layer to be 80nm thick after curing, drying and UV irradiation was performed in the same manner as above to form a high refractive optical luminescence layer.
상기 고굴절 광루미네선스층 상에 촉매화성사 저굴절 코팅액(경화 후 굴절율 1.35)을 경화 후 100nm 두께가 되도록 코팅한 후, 상기와 동일하게 건조, UV 조사를 실시하여 반사방지 광학 적층체를 제조하였다.After coating the high-refractive optical luminescence layer with a catalyzed low-refractive coating solution (refractive index after curing 1.35) to 100nm thickness after curing, drying and UV irradiation in the same manner as above to prepare an antireflective optical laminate It was.
실시예 2: 반사방지 광학 적층체의 제조Example 2: Preparation of Anti-Reflective Optical Laminates
실시예 1에서 고굴절 광루미네선스층 형성 시 제조예 3의 조성물을 사용한 것 이외에는 동일한 방법으로 반사방지 광학 적층체를 제조하였다.An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 3 was used to form a high refractive photoluminescence layer.
실시예 3: 반사방지 광학 적층체의 제조Example 3: Preparation of Anti-Reflective Optical Laminates
실시예 1에서 고굴절 광루미네선스층 형성 시 제조예 4의 조성물을 사용한 것 이외에는 동일한 방법으로 반사방지 광학 적층체를 제조하였다.An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 4 was used to form a high refractive photoluminescence layer.
실시예 4: 반사방지 광학 적층체의 제조Example 4: Preparation of Anti-Reflective Optical Laminates
실시예 1에서 고굴절 광루미네선스층 형성 시 제조예 5의 조성물을 사용한 것 이외에는 동일한 방법으로 반사방지 광학 적층체를 제조하였다.An antireflective optical laminate was prepared in the same manner as in Example 1, except that the composition of Preparation Example 5 was used to form the high refractive photoluminescence layer.
비교예 1: Comparative Example 1:
실시예 1에서 고굴절 광루미네선스층 형성 과정을 제외한 것 이외에는 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1 except for the process of forming the high refractive photoluminescence layer.
비교예 2: Comparative Example 2:
실시예 1에서 고굴절 광루미네선스층 형성 시 광루미네선스 기능이 없는 고굴절 코팅액(굴절율 1)을 사용한 것 이외에는 동일한 방법으로 필름을 제조하였다.Films were prepared in the same manner as in Example 1 except that a high refractive coating solution (refractive index 1) having no photoluminescence function was used to form a high refractive photoluminescence layer.
실험예 1: 반사율 및 레이져 포인터 시인성 평가Experimental Example 1: Evaluation of reflectance and laser pointer visibility
실시예 1 내지 4에서 수득한 반사방지 광학 적층체 및 비교예 1 내지 2에서 수득한 필름의 반사율 및 레이져 포인터 시인성을 하기 방법에 따라 평가하여, 그 결과를 하기 표 1에 나타내었다.Reflectance and laser pointer visibility of the antireflective optical laminates obtained in Examples 1 to 4 and the films obtained in Comparative Examples 1 and 2 were evaluated according to the following methods, and the results are shown in Table 1 below.
(1) 반사율 (1) reflectance
광학 적층체 또는 필름의 배면을 검은색 아크릴판에 접합 후, 코팅 면의 12도 정반사율을 UV-Vis. 반사율 측정기 (시마즈 사, UV2450)를 통해 측정한 후, 시감 반사율 Y(%)로 환산하였다.After bonding the back of the optical laminate or film to the black acrylic plate, the 12-degree specular reflectance of the coated surface was UV-Vis. After measuring through the reflectance measuring instrument (UV2450, Shimadzu Corporation), it converted into luminous reflectance Y (%).
(2) 레이져 포인터 시인성 (2) laser pointer visibility
광학 적층체 또는 필름을 디스플레이 패널의 상면에 부착한 후, 디스플레이를 화이트 모드로 전환하고, 405nm 레이저 포인터를 패널에 60도 각도에서 비추었을 때, 패널 정면에서 레이져 포인터의 시인성을 평가하였다.After attaching the optical laminate or film to the upper surface of the display panel, the display was switched to the white mode and the visibility of the laser pointer was evaluated in front of the panel when the 405 nm laser pointer was shined at the panel at a 60 degree angle.
○: 레이져 포인터의 위치를 인지할 수 있다.○: The position of the laser pointer can be recognized.
X: 레이저 포인터의 위치가 확인되지 않는다.X: The position of the laser pointer is not confirmed.
표 1
반사율(%) 레이저 포인터 시인성
실시예 1 0.5 O
실시예 2 0.4 O
실시예 3 0.3 O
실시예 4 0.3 O
비교예 1 1.0 X
비교예 2 0.5 X
Table 1
reflectivity(%) Laser pointer visibility
Example 1 0.5 O
Example 2 0.4 O
Example 3 0.3 O
Example 4 0.3 O
Comparative Example 1 1.0 X
Comparative Example 2 0.5 X
상기 표 1에서 보듯이, 실시예 1 내지 4에서 수득한 본 발명에 따른 반사방지 광학 적층체는 고굴절 광루미네선스층 상에 저굴절층을 형성시킴으로써 반사율이 낮고 레이저 포인터의 시인성이 우수하였다. As shown in Table 1, the antireflective optical laminate according to the present invention obtained in Examples 1 to 4 had a low refractive index by forming a low refractive layer on the high refractive optical luminescence layer, and the visibility of the laser pointer was excellent.
이상으로 본 발명의 특정한 부분을 상세히 기술하였는 바, 본 발명이 속한 기술분야에서 통상의 지식을 가진 자에게 있어서 이러한 구체적인 기술은 단지 바람직한 구현예일 뿐이며, 이에 본 발명의 범위가 제한되는 것이 아님은 명백하다. 본 발명이 속한 기술분야에서 통상의 지식을 가진 자라면 상기 내용을 바탕으로 본 발명의 범주 내에서 다양한 응용 및 변형을 행하는 것이 가능할 것이다.Having described the specific part of the present invention in detail, it is apparent to those skilled in the art that this specific technology is only a preferred embodiment, which is not intended to limit the scope of the present invention. Do. Those skilled in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above contents.
따라서, 본 발명의 실질적인 범위는 첨부된 특허청구범위와 그의 등가물에 의하여 정의된다고 할 것이다.Therefore, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

Claims (13)

  1. 기재 상에 형성된 고굴절 광 루미네선스층 및 상기 고굴절 광 루미네선스층 상에 형성된 저굴절층을 포함하는 반사방지 광학 적층체.An antireflection optical laminate comprising a high refractive light luminescence layer formed on a substrate and a low refractive layer formed on the high refractive light luminescence layer.
  2. 제1항에 있어서, 고굴절 광 루미네선스층의 굴절률이 1.54 내지 1.70이고, 저굴절층의 굴절률이 1.10 내지 1.40인 것을 특징으로 하는 반사방지 광학 적층체.The antireflection optical laminate according to claim 1, wherein the refractive index of the high refractive optical luminescence layer is 1.54 to 1.70 and the refractive index of the low refractive layer is 1.10 to 1.40.
  3. 제1항에 있어서, 고굴절 광 루미네선스층이 고굴절 광 루미네선스 물질을 포함하는 것을 특징으로 하는 반사방지 광학 적층체.The antireflective optical laminate of claim 1, wherein the high refractive light luminescence layer comprises a high refractive light luminescence material.
  4. 제3항에 있어서, 고굴절 광 루미네선스 물질이 란타나이드 복합체인 것을 특징으로 하는 반사방지 광학 적층체.4. The antireflective optical laminate of claim 3, wherein the high refractive optical luminescence material is a lanthanide composite.
  5. 제3항에 있어서, 고굴절 광 루미네선스 물질의 최대 여기 파장이 100nm 내지 450nm 범위 내에 있는 것을 특징으로 하는 반사방지 광학 적층체.4. The antireflective optical laminate of claim 3, wherein the maximum excitation wavelength of the high refractive optical luminescence material is in the range of 100 nm to 450 nm.
  6. 제1항에 있어서, 저굴절층이 메조포러스 혹은 중공이고 구상인 산화규소 초미립자가 함유되어 있는 재료를 사용하여 형성되는 것을 특징으로 하는 반사방지 광학 적층체.The antireflection optical laminate according to claim 1, wherein the low refractive layer is formed using a material containing mesoporous or hollow, spherical silicon oxide ultrafine particles.
  7. 제1항에 있어서, 하드코팅층, 편광자, 편광자 보호층, 지문방지층, 위상차층, 및 대전방지층으로 구성된 군으로부터 선택된 하나 이상의 광학기능층을 추가로 포함하는 것을 특징으로 하는 반사방지 광학 적층체.The antireflective optical laminate according to claim 1, further comprising at least one optical function layer selected from the group consisting of a hard coating layer, a polarizer, a polarizer protective layer, an anti-fingerprint layer, a retardation layer, and an antistatic layer.
  8. 제1항 내지 제7항 중 어느 한 항에 따른 반사방지 광학 적층체를 포함하는 편광판.A polarizing plate comprising the antireflective optical laminate according to any one of claims 1 to 7.
  9. 제1항 내지 제7항 중 어느 한 항에 따른 반사방지 광학 적층체를 포함하는 화상표시장치.An image display apparatus comprising the antireflective optical laminate according to any one of claims 1 to 7.
  10. 제9항에 있어서, 반사방지 광학 적층체가 디스플레이 패널의 어느 일면에 부착된 것을 특징으로 하는 화상표시장치.10. An image display apparatus according to claim 9, wherein an antireflective optical laminate is attached to one side of the display panel.
  11. 제10항에 있어서, 액정표시장치인 것을 특징으로 하는 화상표시장치.An image display apparatus according to claim 10, which is a liquid crystal display apparatus.
  12. 제8항에 따른 편광판을 포함하는 화상표시장치.An image display device comprising the polarizing plate according to claim 8.
  13. 제12항에 있어서, 액정표시장치인 것을 특징으로 하는 화상표시장치.The image display apparatus according to claim 12, which is a liquid crystal display apparatus.
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