WO2012026560A1 - 光学部材及びその用途 - Google Patents
光学部材及びその用途 Download PDFInfo
- Publication number
- WO2012026560A1 WO2012026560A1 PCT/JP2011/069240 JP2011069240W WO2012026560A1 WO 2012026560 A1 WO2012026560 A1 WO 2012026560A1 JP 2011069240 W JP2011069240 W JP 2011069240W WO 2012026560 A1 WO2012026560 A1 WO 2012026560A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical member
- weight
- adhesive
- image display
- adhesive layer
- Prior art date
Links
Images
Classifications
-
- G02B1/105—
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/13332—Front frames
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133502—Antiglare, refractive index matching layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Definitions
- the present invention is used in an image display device that includes an optical member, a transparent protective member, and an adhesive layer interposed therebetween, and further includes an image display unit on the side opposite to the adhesive layer of the optical member.
- the present invention relates to the optical member.
- an image display unit such as a liquid crystal cell in an image display device such as a liquid crystal display (LCD), an organic electroluminescence display (ELD), a plasma display (PDP), a surface electric field display (SED), a field emission display (FED)
- an optical member such as a polarizing plate, an antiglare film or an antireflection film is disposed, and a transparent protective member made of glass or the like is disposed through an adhesive layer in order to protect them.
- an adhesive is dropped on the optical member and then spread, and then the transparent protective member is brought down and superimposed, and then the adhesive is cured to integrate them. It is known (JP2005-55641A).
- an object of the present invention is to provide an optical member that can suppress defects in appearance due to bubbles generated between the optical member and the transparent protective member.
- the present invention includes the following.
- the above-described image display device including an optical member, a transparent protective member, and an adhesive layer interposed therebetween, and further including an image display unit on the side opposite to the adhesive layer of the optical member.
- Evaluation adhesive 10 ⁇ l comprising isoprene polymer as a main component and containing 14% by weight of dicyclopentenyloxyethyl methacrylate, 8% by weight of benzyl methacrylate, 2% by weight of methyl methacrylate and 0.2% by weight of a photopolymerization initiator Is dropped on the surface of the optical member, and the contact angle between the optical member and the evaluation adhesive when left for 5 minutes is 55 ° or less.
- optical member according to [1] which further satisfies the following condition (2).
- An evaluation adhesive comprising an isoprene polymer as a main component and comprising 14% by weight of dicyclopentenyloxyethyl methacrylate, 8% by weight of benzyl methacrylate, 2% by weight of methyl methacrylate and 0.2% by weight of a photopolymerization initiator.
- the maximum shear stress of the optical member with respect to the adhesive layer in a sample in which the adhesive layer is formed by applying a curing treatment after being applied to the surface of the optical member is 140 N or more.
- At least one of anti-glare treatment, anti-reflection treatment, hard coat treatment, anti-static treatment, and easy adhesion treatment is performed on the surface interposed by the adhesive layer [1] to The optical member according to any one of [3].
- a polarizer protective film comprising the optical member according to any one of [1] to [5].
- a polarizing plate comprising the polarizer protective film according to [5] and a polarizer.
- An image display device including an optical member, a transparent protective member, and an adhesive layer interposed therebetween, and further including an image display unit on a side opposite to the adhesive layer of the optical member, An image display device in which an optical member satisfies the condition (1).
- the adhesive layer interposed between the optical member and the transparent protective member is at least one selected from the group consisting of an acrylic resin, a terpene hydrogenated resin, a xylene resin, a butadiene polymer, and an isoprene polymer.
- the acrylic resin is at least one polymer selected from the group consisting of an esterified product of polyurethane (meth) acrylate, polyisoprene (meth) acrylate, and polyisoprene (meth) acrylate.
- the acrylic resin is at least one polymer selected from the group consisting of an esterified product of polyurethane (meth) acrylate, polyisoprene (meth) acrylate, and polyisoprene (meth) acrylate.
- the (meth) acrylate monomer is selected from methyl (meth) acrylate, benzyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate, isobornyl (meth) acrylate and 2-hydroxybutyl (meth) acrylate.
- optical member is a sheet or film.
- At least one of an anti-glare treatment, an antireflection treatment, a hard coat treatment, an antistatic treatment, and an easy adhesion treatment is performed on the surface of the optical member that is interposed between the adhesive layers. 13] to [15].
- an optical member that can suppress defects in appearance due to bubbles generated between the optical member and the transparent protective member, and further, by using the optical member, the appearance defect is reduced.
- a suppressed image display device can be provided.
- the optical member of the present invention is used as a member of an image display device, and the image display device includes the optical member of the present invention, a transparent protective member, and an adhesive layer interposed therebetween, Furthermore, an image display unit is provided on the side opposite to the adhesive layer in the optical member.
- the contact angle measured with a specific evaluation adhesive is not more than a predetermined value.
- the optical member of the present invention that exhibits a predetermined contact angle as the optical member. By adopting, it becomes possible to suppress the generation of bubbles generated between the optical member and the transparent protective member.
- the optical member of the present invention satisfies the following condition (1).
- Evaluation adhesive 10 ⁇ l comprising isoprene polymer as a main component and containing 14% by weight of dicyclopentenyloxyethyl methacrylate, 8% by weight of benzyl methacrylate, 2% by weight of methyl methacrylate and 0.2% by weight of a photopolymerization initiator Is dropped on the surface of the optical member, and the contact angle between the optical member and the evaluation adhesive when left for 5 minutes is 55 ° or less.
- the evaluation adhesive is an adhesive for evaluating the contact angle of the optical member, and the adhesive layer of the image display device does not necessarily have to be constituted by the adhesive.
- this evaluation adhesive is composed mainly of an isoprene polymer, 14% by weight of dicyclopentenyloxyethyl methacrylate, 8% by weight of benzyl methacrylate, 2% by weight of methyl methacrylate, and 0.2% of a photopolymerization initiator. It contains weight%.
- the adhesive for evaluation can contain, as other additives, diphenylphosphine in addition to a solvent such as acetone, 2,4,6-trimethylbenzoic acid, a polymerization regulator such as 1-octanethiol, Specifically, all or most of the components other than the essential components are composed of an isoprene polymer. Since the evaluation adhesive is composed of such a composition, it is transparent and viscous.
- the optical member of the present invention has a contact angle of 55 ° or less when 10 ⁇ l of the above-mentioned evaluation adhesive is dropped on the surface and left for 5 minutes.
- this contact angle is measured using an adhesive for evaluation, other than that, it can be measured in the same manner as the so-called contact angle with water.
- OCA30L manufactured by DataPhysics, Inc. Can be measured.
- the optical member of the present invention has a contact angle of 55 ° or less, which can suppress the generation of bubbles described above. From the viewpoint of suppressing the generation of such bubbles, the contact angle is preferably 50 ° or less.
- the optical member of the present invention preferably further satisfies the following condition (2).
- An evaluation adhesive comprising an isoprene polymer as a main component and comprising 14% by weight of dicyclopentenyloxyethyl methacrylate, 8% by weight of benzyl methacrylate, 2% by weight of methyl methacrylate and 0.2% by weight of a photopolymerization initiator.
- the maximum shear stress of the optical member with respect to the adhesive layer in a sample in which the adhesive layer is formed by applying a curing treatment after being applied to the surface of the optical member is 140 N or more.
- the same adhesive as described above is used as the evaluation adhesive.
- the glass plate 7 is superimposed on the surface on which the adhesive is further applied, and then the active energy rays are applied.
- an adhesive layer 8 is formed between the optical member 1 and the glass plate 7 to produce a measurement sample.
- stress is applied at a constant speed in the direction in which the glass plate 6 and the glass plate 7 face each other (arrow direction in FIG. 2), that is, the direction in which the adhesive layer 8 is peeled off from the optical member 1.
- the maximum value of the observed force is the maximum shear stress.
- This maximum shear stress can be measured according to JIS K6868-2.
- an apparatus for measuring the maximum shear stress for example, an autoclave (AG-1) manufactured by Shimadzu Corporation can be used.
- the maximum shear stress measured in this way means the maximum shear stress of the optical member specified by the condition (2).
- the maximum shear stress of the optical member is preferably 140 N or more.
- the adhesiveness between the optical member and the transparent protective member laminated via the adhesive is increased.
- the transparent protective member becomes larger like a liquid crystal TV.
- optical member of the present invention examples include plate-like (plate-like), sheet-like, and film-like materials having the specific contact angle described above. preferable.
- the antiglare treatment, the antireflection treatment, the hard coat treatment, the antistatic treatment, and the primer treatment are preferable, and the film subjected to these treatments is an antiglare film, a light diffusion film, an antireflection film. , A polarizer protective film or a polarizing plate including the same.
- polarizer protective film or a polarizing plate including the same.
- the antiglare film is a film for imparting an antiglare function to the image display device, and examples thereof include a film in which a so-called antiglare surface is formed on the surface of a transparent substrate film.
- the antiglare surface herein include (a) an antiglare layer in which predetermined irregularities are formed on the surface by dispersing translucent fine particles in the translucent resin, and (a) the surface of the translucent resin.
- an antiglare surface in which predetermined irregularities are directly formed on the surface of a transparent substrate film.
- the above (a) and (b) are preferable.
- the transparent base film used for the anti-glare film may be a resin film having appropriate transparency and mechanical strength.
- cellulose acetate resin such as TAC (triacetyl cellulose), acrylic resin, polycarbonate Resin, polyester resin such as polyethylene terephthalate, and polyolefin resin such as polyethylene and polypropylene.
- the translucent resin constituting the antiglare layer is not particularly limited as long as it has translucency, for example, cured products of ionizing radiation curable resins such as ultraviolet curable resins and electron beam curable resins, and thermosetting.
- cured products of ionizing radiation curable resins such as ultraviolet curable resins and electron beam curable resins, and thermosetting.
- a cured product of a mold resin, a thermoplastic resin, a metal alkoxide polymer, or the like can be used. Among these, a cured product of an ionizing radiation curable resin is preferable.
- polyfunctional acrylates such as polyhydric alcohol acrylic acid or methacrylic acid ester, polyfunctional acrylate synthesized from diisocyanate and polyhydric alcohol and acrylic acid or methacrylic acid hydroxy ester, etc. And urethane acrylate.
- polyether resins having an acrylate functional group polyester resins, epoxy resins, alkyd resins, spiroacetal resins, polybutadiene resins, polythiol polyene resins, and the like can also be used.
- a photopolymerization initiator when an ultraviolet curable resin is used, a photopolymerization initiator is usually added.
- a photoinitiator is suitably selected according to resin to be used.
- the photopolymerization initiator radiation polymerization initiator
- benzoin such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzyl methyl ketal, and alkyl ethers thereof are used.
- thermosetting resin examples include a thermosetting urethane resin composed of an acrylic polyol and an isocyanate prepolymer, a phenol resin, a urea melamine resin, an epoxy resin, an unsaturated polyester resin, and a silicone resin.
- thermoplastic resin examples include cellulose derivatives such as acetylcellulose, nitrocellulose, acetylbutylcellulose, ethylcellulose, and methylcellulose, vinyl acetate and copolymers thereof, vinyl chloride and copolymers thereof, vinylidene chloride and copolymers thereof, and the like.
- Resin, acetal resin such as polyvinyl formal, polyvinyl butyral, acrylic resin and its copolymer, acrylic resin such as methacrylic resin and its copolymer, polystyrene resin, polyamide resin, linear polyester resin, polycarbonate resin, etc. it can.
- a silicon oxide matrix using a silicon alkoxide material as a raw material can be used.
- alkoxysilane such as tetramethoxysilane and tetraethoxysilane can be converted into an inorganic or organic-inorganic composite matrix by hydrolysis and dehydration condensation.
- a cured product of ionizing radiation curable resin When a cured product of ionizing radiation curable resin is used as the translucent resin, it is necessary to irradiate with ionizing radiation such as ultraviolet rays and electron beams after being applied to a transparent substrate film and dried. Moreover, when using the hardened
- Examples of the light-transmitting fine particles include organic fine particles such as acrylic resin, melamine resin, polyethylene, polystyrene, organic silicone resin, and acrylic-styrene copolymer, and calcium carbonate, silica, aluminum oxide, barium carbonate, barium sulfate, and oxide.
- examples thereof include inorganic fine particles such as titanium and glass, and one or more of these can be used in combination.
- the kind, particle diameter, refractive index, content, and the like of the light-transmitting fine particles may be appropriately adjusted.
- a plate-shaped or roll-shaped mold can be used as the mold.
- a coating material containing a resin material for forming a translucent resin or translucent fine particles is used.
- a resin material ionizing radiation curable resin, thermosetting resin, metal alkoxide
- curing is performed using a mold.
- the coating method of the coating liquid conventionally known methods can be employed, for example, gravure coating method, micro gravure coating method, roll coating method, rod coating method, knife coating method, air knife coating method, kiss coating. Method, die coating method and the like can be used.
- the coating film is cured by ionizing radiation and / or heat.
- the ionizing radiation species is not particularly limited, and can be appropriately selected from ultraviolet rays, electron beams, near ultraviolet rays, visible light, near infrared rays, infrared rays, X-rays, etc., depending on the type of translucent resin, Ultraviolet rays and electron beams are preferred, and ultraviolet rays are particularly preferred in that they are easy to handle and high energy can be easily obtained.
- the light diffusing film is for diffusing light from the image display unit for the purpose of, for example, widening the viewing angle of the image display device. And having a light diffusion layer in which is dispersed.
- the transparent substrate film the translucent resin, and the translucent fine particles
- the same materials as those exemplified in the previous antiglare film can be used.
- the type of transparent substrate film, the type of translucent resin, the type of translucent fine particles, the particle diameter, the refractive index, the content may be adjusted as appropriate.
- the antireflection film is a film for improving the display quality of the image display device by preventing reflection of external light incident on the surface of the image display device.
- a low refractive index layer is provided on the outside of the transparent substrate film. It is what you have.
- a hard coat layer, a high refractive index layer, or a medium refractive index layer can be provided between the transparent substrate film and the low refractive index layer, and a hard coat for imparting scratch resistance to the outermost layer.
- a layer may be provided.
- the transparent substrate film here, a film similar to the film exemplified in the previous anti-glare film can be used.
- the low refractive index layer examples include those containing a binder matrix and inorganic fine particles.
- a material for forming the binder matrix for example, a mixture containing an ionizing radiation curable resin and a polymerization initiator is irradiated with ionizing radiation to be polymerized and cured, or a hydrolyzate of alkoxysilane is dehydrated. The thing obtained by condensation is mentioned.
- examples of the inorganic fine particles include LiF (refractive index 1.4), MgF (refractive index 1.4), 3NaF ⁇ AlF (refractive index 1.4), AlF (refractive index 1.4), Na3AlF6 (refractive index). Low refractive fine particles such as 1.33) and hollow silica fine particles.
- the hard coat layer can be formed by polymerization and curing by irradiating a mixture containing an ionizing radiation curable resin and a polymerization initiator with ionizing radiation.
- a mixture containing an ionizing radiation curable resin and a polymerization initiator with ionizing radiation.
- the ionizing radiation curable resin and the polymerization initiator those similar to those exemplified above can be used.
- the material constituting the high refractive index layer is not particularly limited, and inorganic materials and organic materials can be used.
- the inorganic material include fine particles such as zinc oxide, titanium oxide, cerium oxide, aluminum oxide, silane oxide, tantalum oxide, yttrium oxide, ytterbium oxide, zirconium oxide, antimony oxide, and indium tin oxide (hereinafter also referred to as ITO). Is mentioned.
- ITO indium tin oxide
- the polarizing plate is composed of a polarizer made of polyvinyl alcohol and a polarizer protective film for protecting it.
- the optical member of the present invention may be a polarizing plate or a polarizer protective film as long as it satisfies the contact angle described above.
- the polarizer protective film include cellulose acetate resins such as TAC (triacetylcellulose), acrylic resins, polycarbonate resins, polyester resins such as polyethylene terephthalate, and polyolefin resins such as polyethylene and polypropylene.
- the surface of the resin is preferably subjected to an easy adhesion treatment such as a corona discharge treatment, a glow discharge treatment, a primer treatment, an acid treatment, an alkali treatment, or an ultraviolet irradiation treatment.
- an easy adhesion treatment such as a corona discharge treatment, a glow discharge treatment, a primer treatment, an acid treatment, an alkali treatment, or an ultraviolet irradiation treatment.
- polyester resins, polyolefin resins, acrylic resins, and polycarbonate resins that have been subjected to easy adhesion treatment are more preferable from the viewpoint of the maximum shear stress described above.
- the optical member of the present invention is preferably one whose surface is not subjected to antifouling treatment with a leveling agent or the like.
- the contact angle of the optical member described above tends to increase.
- the transparent protective member is a transparent member disposed on the outermost surface on the viewing side of the image display device, and is for physically protecting the image display device.
- a transparent protective member a widely used glass plate can be used.
- the adhesive here is for interposing the optical member of the present invention and the transparent protective member, and the same adhesive as conventionally used can also be used.
- acrylic resin polyurethane (meth) acrylate, polyisoprene (meth) acrylate, esterified product of polyisoprene (meth) acrylate, and the like are preferable.
- examples of the (meth) acrylic monomer include methyl (meth) acrylate, ethyl (meth) acrylate, hydroxyethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, and 2-hydroxypropyl (meth) acrylate.
- the adhesive may contain a photopolymerization initiator, a solvent, a polymerization regulator, and the like.
- the adhesive agent for evaluation mentioned above can also be used as an adhesive agent here.
- the transparent protective member As a method of forming an adhesive layer between the optical member of the present invention and the transparent protective member, for example, after applying an adhesive on the surface of the optical member, the transparent protective member is overlaid on the surface, and then activated.
- the method of irradiating an energy ray and performing a hardening process is mentioned.
- the active energy ray can be appropriately selected from ultraviolet rays, electron beams, near ultraviolet rays, visible light, near infrared rays, infrared rays, X-rays, etc. Among them, ultraviolet rays are preferable.
- FIG. 1 is a conceptual diagram of the image display apparatus according to the present invention.
- the image display device 5 includes an image display unit 4, an optical member 1, an adhesive layer 3, and a transparent protective member 2 in this order.
- the transparent protective member 2 is the viewing side of the image display device 5
- the image display unit 1 is the light source side (not shown) of the image display device 5.
- Examples of the image display unit 1 include a liquid crystal panel, an EL panel, and a PDP.
- the image display device 5 is a liquid crystal display device
- a rear-side polarizing plate, a prism sheet, a light diffusion sheet, and a backlight device are further arranged on the light source side of the image display unit 4. .
- Adhesive for evaluation The adhesive for evaluation analyzed as follows by the gas chromatography method was used. Main component: Isoprene polymer Dicyclopentenyloxyethyl methacrylate: 14% by weight Benzyl methacrylate: 8% by weight Methyl methacrylate: 2% by weight Photopolymerization initiator (Irgacure 184): 0.2% by weight Other additives: 0.8% by weight of (meth) acrylate monomer, Acetone, 2,4,6-trimethylbenzoic acid, 1-octanethiol, diphenylphosphine (although these compounds were observed as peaks in gas chromatography analysis, they were below the limit of quantification)
- the adhesive for evaluation was applied to the surface of the optical member that had been bonded to the glass plate in advance, the glass plate was overlaid on the surface on which the adhesive was further applied.
- the length of the adhesive coating film in the direction of applying stress was set to about 12.5 mm, and the thickness of the adhesive coating film was adjusted to about 150 ⁇ m.
- the adhesive was cured by irradiating ultraviolet rays with an integrated light amount of 5000 mJ / cm 2 to form an adhesive layer.
- the glass plates face each other, that is, in the direction to peel the adhesive layer from the optical member. Stress was applied at a constant speed (5 mm / min) to obtain the maximum shear stress.
- ⁇ Evaluation of bubble generation> The presence / absence of bubbles between the optical member and the transparent protective member was evaluated as follows. First, a glass plate was used as a transparent protective member. Next, the adhesive for evaluation was diverted as an adhesive for forming an adhesive layer interposed between the optical member and the transparent protective member. Specifically, after an adhesive was applied to the center of the surface of an optical member having a length of 9 cm and a width of 9 cm, a glass plate was overlaid to evaluate the spread of the adhesive. The case where the adhesive spread well without entrapment of bubbles was rated as ⁇ , and the case where some bubbles were encapsulated and the adhesive did not spread well was marked as x.
- the adhesive spreads well without entrapment of bubbles in the stage where the glass plates are overlaid, then it will have a good appearance even after curing treatment, on the other hand, if entrapment of bubbles, Even if the curing process is performed, bubbles remain and the appearance is poor.
- Example evaluation 1 The contact angle and the maximum shear stress were evaluated for the film-like optical members (Sample Nos. 1 to 12) having the following configurations. The results are shown in Table 1.
- Example No. 1 A film having an antiglare layer formed mainly from pentaerythritol tetraacrylate (hereinafter referred to as PETA) or dipentaerythritol hexaacrylate (hereinafter referred to as DPHA) on a triacetylcellulose (hereinafter referred to as TAC) base film.
- PETA pentaerythritol tetraacrylate
- DPHA dipentaerythritol hexaacrylate
- TAC triacetylcellulose
- Example No. 2 A film-like optical member having an antiglare layer formed mainly from PETA on a TAC substrate film.
- Example No. 3 A film-like optical member having an antiglare layer formed mainly from PETA and IPDI on a TAC substrate film. When the surface of the optical member was analyzed by TOF-SIMS, the presence of the fluorine-based compound was not confirmed.
- Example No. 4 A film-like optical member having an antiglare layer formed mainly from PETA and organosiloxane on the TAC substrate film.
- Example No. 5 A film-like optical member having a hard coat layer formed mainly from PETA and hexamethylene diisocyanate (hereinafter, HDI) on the TAC base film.
- HDI hexamethylene diisocyanate
- TAIC tris (2-acryloxyethyl) isocyanurate
- Example No. 7 -A film-like optical film having an antiglare layer formed mainly from PETA, DPHA, IPDI, 2-hydroxyethyl methacrylate (hereinafter, HEMA) on a TAC substrate film and containing an antistatic agent.
- HEMA 2-hydroxyethyl methacrylate
- Example No. 8 A film-like optical member having an antistatic layer on a TAC substrate film and further having an antiglare layer mainly formed of PETA, DPHA, IPDI, HEMA, and TAIC.
- an antiglare layer mainly formed of PETA, DPHA, IPDI, HEMA, and TAIC.
- Example No. 9 A film-like optical member having an antistatic layer on a TAC substrate film and further having an antiglare layer mainly formed of PETA, DPHA, IPDI, HEMA, and TAIC.
- an antiglare layer mainly formed of PETA, DPHA, IPDI, HEMA, and TAIC.
- Example No. 10 A film-like optical member having an antiglare layer formed mainly from PETA and IPDI on a TAC substrate film.
- the surface of the optical member was analyzed by TOF-SIMS, the presence of perfluoropolyether was confirmed.
- Example No. 11 A film-like optical member having an antiglare layer formed mainly from PETA, DPHA, and IPDI on the TAC substrate film and containing an antistatic agent.
- the surface of the optical member was analyzed by TOF-SIMS, the presence of perfluoropolyether was confirmed.
- ⁇ Sample evaluation 2> The surface of the PET base film could be subjected to easy adhesion treatment so that the contact angle was 25 ° and the maximum shear stress was 160N.
- Optical member 2 Transparent protective member 3: Adhesive layer 4: Image display unit 5: Image display device 6, 7: Glass plate 8: Adhesive layer formed from adhesive for evaluation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Optical Elements Other Than Lenses (AREA)
- Polarising Elements (AREA)
Abstract
Description
[1] 光学部材と、透明保護部材と、これらの間に介在する接着剤層とを備え、さらに光学部材の接着剤層とは反対側に画像表示部を備える画像表示装置に使用される前記光学部材であって、下記(1)の条件を満たす光学部材。
(1)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤10μlを前記光学部材の表面に滴下した後、5分放置した際における前記光学部材と前記評価用接着剤との接触角が55°以下であること。
(2)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤を前記光学部材の表面に塗布した後、硬化処理して接着剤層を形成したサンプルにおける前記接着剤層に対する前記光学部材の最大せん断応力が140N以上であること。
本発明の光学部材は、画像表示装置の部材として使用されるものであり、該画像表示装置は、本発明の光学部材と、透明保護部材と、これらの間に介在する接着剤層を備え、さらに前記光学部材における接着剤層とは反対側に画像表示部を備えるものである。そして、本発明の光学部材は、特定の評価用接着剤により測定される接触角が所定値以下となるものである。このように、画像表示部の方から順に、画像表示部、光学部材、接着剤層、および透明保護部材を備える画像表示装置において、前記光学部材として所定値の接触角を示す本発明の光学部材を採用することにより、光学部材と透明保護部材との間に生じる気泡の発生を抑制することが可能となる。
(1)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤10μlを前記光学部材の表面に滴下した後、5分放置した際における前記光学部材と前記評価用接着剤との接触角が55°以下であること。
(2)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤を前記光学部材の表面に塗布した後、硬化処理して接着剤層を形成したサンプルにおける前記接着剤層に対する前記光学部材の最大せん断応力が140N以上であること。
透明保護部材は、画像表示装置の視認側の最表面に配置される透明な部材であり、画像表示装置を物理的に保護するためのものである。かかる透明保護部材としては、汎用されているガラス板を使用することができる。
ここでいう接着剤は、本発明の光学部材と、前記透明保護部材とを介在するためのものであり、従来から使用されている接着剤と同様のものを使用することもできる。中でも、アクリル系樹脂、テルペン系水素添加樹脂、キシレン系樹脂、ブタジエン重合体およびイソプレン重合体からなる群より選ばれる少なくとも1種のポリマーと、(メタ)アクリレート系モノマーと、光重合開始剤とを含有するものが好ましい。
かくして、本発明の光学部材と、透明保護部材と、これらの間に介在する接着剤層を備えるユニットを作製することができる。そして、当該光学部材の接着剤層とは反対側に画像表示部を備えることにより、画像表示装置とすることができる。ここで、本発明にかかる画像表示装置の概念図である図1を参照しながら、画像表示装置について説明する。図1に示すとおり、画像表示装置5は、画像表示部4、光学部材1、接着剤層3及び透明保護部材2をこの順で備えるものである。ここで、透明保護部材2の方が、画像表示装置5の視認側となり、画像表示部1の方が画像表示装置5における光源側(図示せず)となる。
ガスクロマトグラフィー法により以下のとおり分析される評価用接着剤を使用した。
主成分:イソプレン重合体
ジシクロペンテニロキシエチルメタクリレート:14重量%
ベンジルメタクリレート:8重量%
メチルメタクリレート:2重量%
光重合開始剤(イルガキュア184):0.2重量%
その他添加物:(メタ)アクリレート系モノマー0.8重量%、
アセトン、2,4,6−トリメチル安息香酸、1−オクタンチオール、ジフェニルホスフィン(これら化合物は、ガスクロマトグラフィー分析においてピークとしては観測されるものの、定量限界以下であった。)
測定対象とするフィルム状の光学部材の表面に、前記評価用接着剤5mlを滴下した後、5分間放置し、次いで、当該光学部材と当該評価用接着剤との接触角をDataPhysics社製のContact Angle System 「OCA30L」を用いて測定した。
予めガラス板に貼合しておいた光学部材の表面に、前記評価用接着剤を塗布した後、さらに接着剤を塗布した面にガラス板を重ね合わせた。ここで、応力をかける方向の接着剤塗布膜の長さを約12.5mmとし、接着剤塗布膜の厚みを約150μmになるように調整した。
次いで、UV照射装置(シンコー化学製)を用い、積算光量5000mJ/cm2として紫外線を照射して、前記接着剤を硬化させて接着剤層を形成した。
このように作製された測定用のサンプルに対し、島津製作所社製のオートクレープ(AG−1)を使用して、ガラス板同士を相対する方向、すなわち光学部材から接着剤層を引き剥がす方向に一定速度(5mm/min)で応力をかけていき、最大せん断応力を求めた。
光学部材と透明保護部材との間における気泡の有無について、以下のとおり評価した。
まず、透明保護部材としてガラス板を使用した。次に、光学部材と透明保護部材との間に介在させる接着剤層を形成するための接着剤として、前記評価用接着剤を転用することとした。
具体的には、縦9cm×横9cmの光学部材の表面中央部に接着剤を塗布した後、ガラス板を重ね合わせ、接着剤の広がり具合を評価した。気泡のかみこみなく接着剤が良好に広がっていたものを○とし、一部気泡がかみこみ、接着剤がうまく広がっていないものを×とした。なお、ガラス板を重ね合わせた段階で気泡のかみこみなく接着剤が良好に広がっていると、その後、硬化処理しても良好な外観を有するものなり、他方、気泡がかみこんでしまうと、その後、硬化処理を行っても気泡は残存して外観不良となる。
以下の構成を有するフィルム状の光学部材(サンプルNo.1~12)について、接触角、最大せん断応力を評価した。その結果を表1に示す。
・トリアセチルセルロース(以下、TAC)基材フィルムの上に、主にペンタエリスリトールテトラアクリレート(以下、PETA)、ジペンタエリスリトールヘキサアクリレート(以下、DPHA)から形成される防眩層を有するフィルム状の光学部材。
・TAC基材フィルムの上に、主にPETAから形成される防眩層を有するフィルム状の光学部材。
・TAC基材フィルムの上に、主にPETA、IPDIから形成される防眩層を有するフィルム状の光学部材。該光学部材の表面をTOF−SIMSにより分析したところ、フッ素系化合物の存在は確認されなかった。
・TAC基材フィルムの上に、主にPETA、有機シロキサンから形成される防眩層を有するフィルム状の光学部材。
・TAC基材フィルムの上に、主にPETA、ヘキサメチレンジイソシアネート(以下、HDI)から形成されるハードコート層を有するフィルム状の光学部材。
・TAC基材フィルムの上に、主にPETA、DPHA、トリス(2−アクリロキシエチル)イソシアヌレート(以下、TAIC)、IPDIから形成されるハードコート層を有するフィルム状の光学部材。
・TAC基材フィルムの上に、主にPETA、DPHA、IPDI、2−ヒドロキシエチルメタクリレート(以下、HEMA)から形成され、かつ、帯電防止剤が含有されている防眩層を有するフィルム状の光学部材。
・TAC基材フィルムの上に帯電防止層を有し、さらにその上に、主にPETA、DPHA、IPDI、HEMA、TAICから形成される防眩層を有するフィルム状の光学部材。該光学部材の表面をTOF−SIMSにより分析したところ、パーフルオロポリエーテルの存在が確認された。
・TAC基材フィルムの上に帯電防止層を有し、さらにその上に、主にPETA、DPHA、IPDI、HEMA、TAICから形成される防眩層を有するフィルム状の光学部材。該光学部材の表面をTOF−SIMSにより分析したところ、パーフルオロポリエーテルの存在が確認された。
・TAC基材フィルムの上に、主にPETA、IPDIから形成される防眩層を有するフィルム状の光学部材。該光学部材の表面をTOF−SIMSにより分析したところ、パーフルオロポリエーテルの存在が確認された。
・TAC基材フィルムの上に、主にPETA、DPHA、IPDIから形成され、かつ、帯電防止剤が含有されている防眩層を有するフィルム状の光学部材。該光学部材の表面をTOF−SIMSにより分析したところ、パーフルオロポリエーテルの存在が確認された。
サンプルNo.3について、前述した気泡発生の評価を行ったところ、気泡のかみこみなく接着剤が良好に広がっていた。一方、サンプルNo.9について、前述した気泡発生の評価を行ったところ、一部気泡がかみこみ、接着剤がうまく広がっていなかった。
PET基材フィルムの表面に、接触角25°、最大せん断応力が160Nとなるように易接着処理することが可能であった。
TAC基材フィルムの最大せん断応力は55Nであった。
2:透明保護部材
3:接着剤層
4:画像表示部
5:画像表示装置
6、7:ガラス板
8:評価用接着剤から形成される接着剤層
Claims (17)
- 光学部材と、透明保護部材と、これらの間に介在する接着剤層とを備え、さらに光学部材の接着剤層とは反対側に画像表示部を備える画像表示装置に使用される前記光学部材であって、下記(1)の条件を満たす光学部材。
(1)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤10μlを前記光学部材の表面に滴下した後、5分放置した際における前記光学部材と前記評価用接着剤との接触角が55°以下であること。 - さらに、下記(2)の条件を満たす請求の範囲1に記載の光学部材。
(2)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤を前記光学部材の表面に塗布した後、硬化処理して接着剤層を形成したサンプルにおける前記接着剤層に対する前記光学部材の最大せん断応力が140N以上であること。 - シート状又はフィルム状である請求の範囲1又は2に記載の光学部材。
- 前記接着剤層に介在される側の面に防眩処理、反射防止処理、ハードコート処理、帯電防止処理及び易接着処理のうち少なくとも1種の処理が施されている請求の範囲1~3のいずれかに記載の光学部材。
- 前記接着剤層に介在される側の面に防汚処理が施されていない請求の範囲1~4のいずれかに記載の光学部材。
- 請求の範囲1~5のいずれかに記載の光学部材からなる偏光子保護フィルム。
- 請求の範囲5に記載の偏光子保護フィルムと、偏光子とを備える偏光板。
- 光学部材と、透明保護部材と、これらの間に介在する接着剤層とを備え、さらに光学部材の接着剤層とは反対側に画像表示部を備える画像表示装置であって、前記光学部材が下記(1)の条件を満たす画像表示装置。
(1)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤10μlを前記光学部材の表面に滴下した後、5分放置した際における前記光学部材と前記評価用接着剤との接触角が55°以下であること。 - 光学部材が、さらに下記(2)の条件を満たす請求の範囲8に記載の画像表示装置。
(2)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤を前記光学部材の表面に塗布した後、硬化処理して接着剤層を形成したサンプルにおける前記接着剤層に対する前記光学部材の最大せん断応力が140N以上であること。 - 前記光学部材及び前記透明保護部材の間に介在する接着剤層が、アクリル系樹脂、テルペン系水素添加樹脂、キシレン系樹脂、ブタジエン重合体およびイソプレン重合体からなる群より選ばれる少なくとも1種のポリマーと、(メタ)アクリレート系モノマーと、光重合開始剤とを含有する接着剤を硬化処理して形成されたものである請求の範囲8又は9に記載の画像表示装置。
- 前記アクリル系樹脂が、ポリウレタン(メタ)アクリレート、ポリイソプレン系(メタ)アクリレート、ポリイソプレン系(メタ)アクリレートのエステル化物からなる群より選ばれる少なくとも1種のポリマーである請求の範囲10に記載の画像表示装置。
- 前記(メタ)アクリレート系モノマーが、メチル(メタ)アクリレート、ベンジル(メタ)アクリレート、ジシクロペンテニロキシエチル(メタ)アクリレート、イソボニル(メタ)アクリレート及び2−ヒドロキシブチル(メタ)アクリレートからなる群より選ばれる少なくとも1種のモノマーである請求の範囲10又は11に記載の画像表示装置。
- 光学部材と、透明保護部材と、これらの間に介在する接着剤層とを備え、さらに光学部材の接着剤層とは反対側に画像表示部を備える画像表示装置への下記(1)の条件を満たす光学部材の使用。
(1)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤10μlを前記光学部材の表面に滴下した後、5分放置した際における前記光学部材と前記評価用接着剤との接触角が55°以下であること。 - 光学部材が、さらに下記(2)の条件を満たす請求の範囲13に記載の使用。
(2)イソプレン重合体を主成分とし、ジシクロペンテニロキシエチルメタクリレート14重量%、ベンジルメタクリレート8重量%、メチルメタクリレート2重量%及び光重合開始剤0.2重量%を含む評価用接着剤を前記光学部材の表面に塗布した後、硬化処理して接着剤層を形成したサンプルにおける前記接着剤層に対する前記光学部材の最大せん断応力が140N以上であること。 - 光学部材がシート状又はフィルム状である請求の範囲13又は14に記載の使用。
- 光学部材の前記接着剤層に介在される側の面に防眩処理、反射防止処理、ハードコート処理、帯電防止処理及び易接着処理のうち少なくとも1種の処理が施されている請求の範囲13~15のいずれかに記載の使用。
- 光学部材の前記接着剤層に介在される側の面に防汚処理が施されていない請求の範囲13~16のいずれかに記載の使用。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180040558.7A CN103097923B (zh) | 2010-08-26 | 2011-08-19 | 光学部件及其用途 |
KR1020137007147A KR101780849B1 (ko) | 2010-08-26 | 2011-08-19 | 광학 부재 및 그의 용도 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-189176 | 2010-08-26 | ||
JP2010189176A JP5750848B2 (ja) | 2010-08-26 | 2010-08-26 | 画像表示装置用光学部材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012026560A1 true WO2012026560A1 (ja) | 2012-03-01 |
Family
ID=45723551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069240 WO2012026560A1 (ja) | 2010-08-26 | 2011-08-19 | 光学部材及びその用途 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5750848B2 (ja) |
KR (1) | KR101780849B1 (ja) |
CN (1) | CN103097923B (ja) |
TW (1) | TWI551660B (ja) |
WO (1) | WO2012026560A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9718264B2 (en) * | 2012-05-09 | 2017-08-01 | Dexerials Corporation | Method of manufacturing image display apparatus |
WO2017026078A1 (ja) * | 2015-08-10 | 2017-02-16 | 住友化学株式会社 | 偏光板、画像表示装置、及び偏光板の製造方法 |
JP6805966B2 (ja) * | 2017-05-24 | 2020-12-23 | Agc株式会社 | カバー部材、カバー部材の製造方法および表示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000251800A (ja) * | 1999-02-26 | 2000-09-14 | Canon Inc | 画像表示装置におけるスペーサー接着構造およびその接着剤塗布方法 |
JP2005055641A (ja) * | 2003-08-04 | 2005-03-03 | Yokogawa Electric Corp | 液晶表示装置 |
JP2006078714A (ja) * | 2004-09-09 | 2006-03-23 | Nitto Denko Corp | 偏光板およびその製造方法、ならびに偏光板を用いた画像表示装置 |
WO2009011373A1 (ja) * | 2007-07-17 | 2009-01-22 | Sony Chemical & Information Device Corporation | 画像表示装置及びその製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3820595B2 (ja) * | 1997-06-13 | 2006-09-13 | セイコーエプソン株式会社 | 表示装置及びそれを用いた電子機器並びに偏光分離器 |
EP1420272A3 (en) * | 2000-01-13 | 2004-06-23 | Nitto Denko Corporation | Optical film and liquid-crystal display device |
JP2007199409A (ja) * | 2006-01-26 | 2007-08-09 | Fujifilm Corp | 光学フイルム、偏光板、及びそれを用いた画像表示装置 |
JP5033454B2 (ja) * | 2006-03-29 | 2012-09-26 | 富士フイルム株式会社 | 光学フィルム、偏光板、画像表示装置、及び光学フィルムの製造方法 |
US8047662B2 (en) * | 2007-03-27 | 2011-11-01 | Fujifilm Corporation | Antiglare film, polarizing plate and image display device |
JP2009186957A (ja) * | 2007-04-09 | 2009-08-20 | Sony Chemical & Information Device Corp | 樹脂組成物及び表示装置 |
TWI357507B (en) * | 2007-05-23 | 2012-02-01 | Kolon Inc | Optical sheet |
JP4924344B2 (ja) * | 2007-10-01 | 2012-04-25 | コニカミノルタオプト株式会社 | 防眩フィルム、その製造装置、防眩性反射防止フィルム、偏光板、及び表示装置 |
WO2009088247A2 (ko) * | 2008-01-10 | 2009-07-16 | Kolon Industries, Inc. | 광학 시트 |
-
2010
- 2010-08-26 JP JP2010189176A patent/JP5750848B2/ja not_active Expired - Fee Related
-
2011
- 2011-08-19 WO PCT/JP2011/069240 patent/WO2012026560A1/ja active Application Filing
- 2011-08-19 CN CN201180040558.7A patent/CN103097923B/zh not_active Expired - Fee Related
- 2011-08-19 KR KR1020137007147A patent/KR101780849B1/ko active IP Right Grant
- 2011-08-24 TW TW100130382A patent/TWI551660B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000251800A (ja) * | 1999-02-26 | 2000-09-14 | Canon Inc | 画像表示装置におけるスペーサー接着構造およびその接着剤塗布方法 |
JP2005055641A (ja) * | 2003-08-04 | 2005-03-03 | Yokogawa Electric Corp | 液晶表示装置 |
JP2006078714A (ja) * | 2004-09-09 | 2006-03-23 | Nitto Denko Corp | 偏光板およびその製造方法、ならびに偏光板を用いた画像表示装置 |
WO2009011373A1 (ja) * | 2007-07-17 | 2009-01-22 | Sony Chemical & Information Device Corporation | 画像表示装置及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR101780849B1 (ko) | 2017-09-21 |
CN103097923A (zh) | 2013-05-08 |
TWI551660B (zh) | 2016-10-01 |
TW201224091A (en) | 2012-06-16 |
KR20140006774A (ko) | 2014-01-16 |
JP2012047929A (ja) | 2012-03-08 |
CN103097923B (zh) | 2015-03-11 |
JP5750848B2 (ja) | 2015-07-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108230900B (zh) | 图像显示装置 | |
JP5779863B2 (ja) | 光学フィルムの製造方法、光学フィルム、偏光板及びディスプレイ | |
KR101697779B1 (ko) | 광학필름 | |
JP5834040B2 (ja) | 光学積層体およびハードコートフィルム | |
KR101637384B1 (ko) | 광학 적층체, 편광판 및 화상 표시 장치 | |
KR101646780B1 (ko) | 방현성 하드코트필름 및 그것을 이용한 편광판 | |
JP2007058204A (ja) | 防眩ハードコートフィルム、及びそれを用いた表示装置 | |
TWI421530B (zh) | 硬塗膜 | |
JP2004182765A (ja) | ハードコートフィルム | |
JP5811090B2 (ja) | 帯電防止層用硬化性樹脂組成物、光学フィルム、偏光板及びディスプレイパネル | |
JP5750848B2 (ja) | 画像表示装置用光学部材 | |
JP6934996B2 (ja) | フレキシブル画像表示装置およびそれに用いる光学積層体 | |
JP6017762B2 (ja) | 液晶表示装置およびその製造方法 | |
JP3749309B2 (ja) | エネルギー線硬化型樹脂組成物及び該組成物の硬化膜層を有するトリアセチルセルロースフィルム | |
KR20160150335A (ko) | 부착력이 우수한 반사방지필름 | |
JP7327078B2 (ja) | 意匠材及び意匠材の製造方法 | |
JP6551117B2 (ja) | 光学積層体及びその製造方法 | |
JP2016033666A (ja) | フィルム積層体およびこれを用いた偏光板 | |
JP6181711B2 (ja) | 偏光子保護フィルムおよびこれを用いた偏光板 | |
WO2021131218A1 (ja) | フレキシブル画像表示装置およびそれに用いる光学積層体 | |
JP2017009886A (ja) | 樹脂組成物、保護フィルムおよび偏光板 | |
WO2023120474A1 (ja) | ハードコートフィルム | |
JP2013003251A (ja) | フィルム積層体およびこれを用いた偏光板 | |
CN114651197A (zh) | 防眩性膜、防眩性膜的设计方法、防眩性膜的制造方法、光学构件及影像显示设备 | |
WO2014157531A1 (ja) | 熱線制御シート |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180040558.7 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11820022 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20137007147 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11820022 Country of ref document: EP Kind code of ref document: A1 |