[go: up one dir, main page]

WO2015099358A1 - Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant - Google Patents

Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant Download PDF

Info

Publication number
WO2015099358A1
WO2015099358A1 PCT/KR2014/012531 KR2014012531W WO2015099358A1 WO 2015099358 A1 WO2015099358 A1 WO 2015099358A1 KR 2014012531 W KR2014012531 W KR 2014012531W WO 2015099358 A1 WO2015099358 A1 WO 2015099358A1
Authority
WO
WIPO (PCT)
Prior art keywords
polarizer
adhesive layer
liquid crystal
resin
protective film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2014/012531
Other languages
English (en)
Korean (ko)
Inventor
문제욱
이도규
양민수
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongwoo Fine Chem Co Ltd
Original Assignee
Dongwoo Fine Chem Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongwoo Fine Chem Co Ltd filed Critical Dongwoo Fine Chem Co Ltd
Publication of WO2015099358A1 publication Critical patent/WO2015099358A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • 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 relates to a polarizing plate and a liquid crystal display including the same, which have excellent adhesion between the polarizer and the protective film, and which are manufactured by using an adhesive which minimizes light leakage occurring in the liquid crystal display and uniforms the luminance distribution for each viewing angle. will be.
  • a polarizing plate used in a liquid crystal display device or the like has a structure in which a transparent protective film is laminated on both surfaces or one surface of a polarizer made of a polyvinyl alcohol-based resin in which a dichroic dye is adsorbed and oriented.
  • the polarizer using iodine as a dichroic dye is called an iodine type polarizer, and the polarizer using a dichroic dye is called a dye type polarizer.
  • iodine polarizers have high transmittance and high polarization (high contrast) compared to dye polarizers and are widely used.
  • iodine polarizers have superior optical characteristics than dye-based polarizers, but have low optical durability. For example, when the iodine polarizer or the polarizing plate including the polarizer is left under dry heat, there is a problem that the transmittance is reduced or discolored.
  • a polarizing plate having high contrast (high transmittance and high polarization) and excellent optical durability such as heat resistance and moisture heat resistance is required.
  • Korean Patent Publication No. 2010-0003715 shows excellent durability under severe environments such as high temperature and / or high humidity conditions, and has excellent physical properties such as cutting property, peeling property and workability, and particularly has a low photoelastic coefficient.
  • a pressure-sensitive adhesive composition capable of efficiently suppressing light leakage occurring in a liquid crystal display device even when applied to a protective film is disclosed.
  • the present invention is to solve the above problems, an object of the present invention is excellent adhesion between the polarizer and the protective film, it is possible to minimize the light leakage phenomenon occurring in the liquid crystal display device and to uniform the luminance distribution for each viewing angle It is to provide a polarizing plate produced using an adhesive.
  • Another object of the present invention is to provide a liquid crystal display device including the polarizing plate.
  • the present invention is a polarizing plate comprising a polarizer, a polarizer protective film attached to at least one side of the polarizer, and an adhesive layer for attaching the polarizer and the polarizer protective film, wherein the adhesive layer is a condition of the following formula 1 It provides a polarizing plate that satisfies.
  • R in represents the plane retardation value
  • n x represents the refractive index from the plane direction of the adhesive layer to the horizontal axis, and is the largest refractive index of the plane direction refractive index
  • n y represents the refractive index from the plane direction of the adhesive layer to the longitudinal axis
  • d represents the thickness of an adhesive bond layer
  • the thickness d of the said adhesive bond layer is 5 micrometers or less.
  • the present invention provides a liquid crystal display device including the polarizing plate.
  • the polarizing plate according to the present invention has excellent adhesion between the polarizer and the protective film, minimizes the light leakage phenomenon generated in the liquid crystal display device by suppressing the distortion of the phase difference value of the protective film, it is possible to uniform the luminance distribution for each viewing angle.
  • An embodiment of the present invention is a polarizing plate comprising a polarizer, a polarizer protective film attached to at least one side of the polarizer, and an adhesive layer for attaching the polarizer and the polarizer protective film, wherein the adhesive layer is of the following formula 1 It relates to a polarizing plate that satisfies the conditions.
  • R in represents the plane retardation value
  • n x represents the refractive index from the plane direction of the adhesive layer to the horizontal axis, and is the largest refractive index of the plane direction refractive index
  • n y represents the refractive index from the plane direction of the adhesive layer to the longitudinal axis
  • d represents the thickness of an adhesive bond layer.
  • the thickness d of the adhesive layer is preferably 5 ⁇ m or less.
  • the in-plane retardation value R in is greater than 5 nm, or when the thickness d of the adhesive layer is greater than 5 ⁇ m, the luminance distribution for each viewing angle is uneven and adhesion between the polarizer and the protective film is low.
  • the adhesive composition forming the adhesive layer may comprise a photopolymerizable compound, an epoxy resin and an initiator.
  • the said photopolymerizable compound 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 the monomer which has a vinyl group desirable.
  • the monomer having a vinyl group examples include 3-ethyl-3-((vinyloxy) methyl) oxetane and 2-(((4-((vinyloxy) methyl) cyclohexyl) methoxy) methyl) oxirane These can be mentioned, These can be used individually or in mixture of 2 or more types.
  • the photopolymerizable compound is preferably included 5 to 30 parts by weight based on 100 parts by weight of the total adhesive composition.
  • the epoxy resin preferably has a viscosity of 1 to 50,000 cps, and is preferably contained in 10 to 90 parts by weight based on 100 parts by weight of the total adhesive composition. If the epoxy resin is included in more than 90 parts by weight, the transmittance of the composition is lowered, if less than 10 parts by weight has a disadvantage in that the adhesion, heat resistance, thermal expansion coefficient is lowered.
  • the epoxy resin is bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin, novolac type epoxy resin, naphthalene type epoxy resin, trisphenol methane type epoxy resin, glycidylamine type epoxy resin and alicyclic type It is preferable to select at least 1 type from the group which consists of an epoxy resin.
  • epoxy resin examples include epicron 840, epicron 840-S, epicron 850, epicron 850-S, epicron 830-CRP, epicron 850-CRP, epicron 830, epicron 830-S, epicron 830 -LVP, Epicron 835, Epicron N-660, Epicron N-740, Epicron HP-820, Epicron HP-4032, Epicron EXA-7015 (Dainippon Ink & Chemicals), EP-4080S, EP -7088S, EP-4085S, EP-4080, EP-4000S (Adeca Co.), Celloxide-2021P (Diecel Co.), 1, 4- butanediol diglycidyl ether, 2-ethylhexyl glycidyl ether, etc. are mentioned. It can be used alone or in combination of two or more.
  • the epoxy resin may include an acrylic monomer, and the acrylic monomer may be included in an amount of 5 to 40 parts by weight based on 100 parts by weight of the entire adhesive composition.
  • Specific examples of the acrylic monomers include trimethylolpropane tri (meth) acrylate, pentaerythritol tree / penta (meth) acrylate, dipentaerythritol penta / hexa (meth) acrylate, and isobornol (meth) acrylic.
  • the initiator may be at least one selected from the group consisting of a radical photopolymerization initiator, a cationic photopolymerization initiator and a thermal polymerization initiator.
  • the radical photopolymerization initiator preferably has an absorption wavelength at a wavelength of 340 nm or more, and is preferably included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total adhesive composition.
  • the radical photopolymerization initiator include benzophenone, benzyldimethyl ketan, 1-hydroxycyclohexylphenyl ketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and 1- [4- (2-hydroxy Ethoxy) -phenyl] -2-hydroxy-2-methyl-1-propane-1-one, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropane-1-one , 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone, 2,2-dimethoxy-1,2-diphenylethanetone, 4- (2-hydroxyethoxy) Phenyl- (2-hydroxy-2-propyl) ketone,
  • the cationic photopolymerization initiator is preferably included in 0.1 to 10 parts by weight based on 100 parts by weight of the total adhesive composition.
  • onium salts such as an aromatic diazonium salt, an aromatic halonium salt, and an aromatic sulfonium salt, etc. can be used.
  • Specific examples include adekaoptomer SP-150, adekaoptomer SP-170, adekaoptomer SP-151, adekaoptomer SP-171 (Adeca), and photoinitiator 2074 (Rodiasa). And the like, and may be used alone or in combination of two or more.
  • the thermal polymerization initiator is preferably included in 0.1 to 10 parts by weight based on 100 parts by weight of the total adhesive composition.
  • the thermal polymerization initiator CXC-1612, CXC-1614, CX-7231, TAG-2678, TAG-2700, CDI-4302, CDR-3430 (King Industry Co., Ltd.), Adeka Optomer CP-66, Adeka Opto Mer CP-77 (Adeca Co., Ltd.) etc. can be mentioned, It can be used individually or two or more simultaneously.
  • the adhesive composition may further comprise one or more photosensitizers, antioxidants and the like known in the art.
  • the polarizer is a dichroic dye adsorbed on the stretched polyvinyl alcohol-based film.
  • the polyvinyl alcohol-based resin constituting the polarizer can be obtained by saponifying a polyvinyl acetate-based resin.
  • polyvinyl acetate type resin the copolymer etc. of vinyl acetate and the other monomer copolymerizable with this besides the polyvinyl acetate which is a homopolymer of vinyl acetate are mentioned.
  • an unsaturated carboxylic acid type, an unsaturated sulfonic acid type, an olefin type, a vinyl ether type, an acrylamide type monomer which has an ammonium group, etc. are mentioned.
  • the polyvinyl alcohol-based resin may be modified, for example, polyvinyl formal or polyvinyl acetal modified with aldehydes may be used.
  • the saponification degree of the polyvinyl alcohol-based resin is usually 85 to 100 mol%, preferably 98 mol% or more.
  • the degree of polymerization of the polyvinyl alcohol-based resin is usually 1,000 to 10,000, preferably 1,500 to 5,000.
  • What formed such a polyvinyl alcohol-type resin into a film is used as a raw film of a polarizer.
  • the film formation method of polyvinyl alcohol-type resin is not specifically limited, A well-known method can be used.
  • the film thickness of the raw film is not particularly limited, and may be, for example, 10 to 150 ⁇ m.
  • the polarizer is continuously uniaxially stretched a polyvinyl alcohol-based film on an aqueous solution, dyed with a dichroic dye, adsorbed, treated with an aqueous boric acid solution, washed with water, and dried.
  • a polyvinyl alcohol-based film on an aqueous solution, dyed with a dichroic dye, adsorbed, treated with an aqueous boric acid solution, washed with water, and dried.
  • the process of uniaxially stretching the polyvinyl alcohol-based film may be performed before dyeing, may be simultaneously performed with dyeing, or may be performed after dyeing.
  • the uniaxial stretching is performed after dyeing, it may be performed before boric acid treatment, or may be performed during boric acid treatment.
  • rolls or heat rolls with different circumferential speeds can be used.
  • uniaxial stretching may be dry stretching extending
  • the draw ratio is usually 4 to 8 times.
  • the method of immersing a polyvinyl alcohol-type film in the aqueous solution containing a dichroic dye can be used, for example.
  • a dichroic dye iodine or a dichroic dye is used.
  • the polyvinyl alcohol-based film is preferably swelled by dipping in water before dyeing.
  • the method of immersing and dyeing a polyvinyl alcohol-type film in the dyeing aqueous solution containing iodine and potassium iodide can be used normally.
  • the content of iodine in the aqueous solution for dyeing is 0.01 to 1 part by weight based on 100 parts by weight of water (distilled water), and the content of potassium iodide is 0.5 to 20 parts by weight based on 100 parts by weight of water.
  • the temperature of the aqueous solution for dyeing is usually 20 to 40 ° C.
  • the immersion time (dyeing time) is usually 20 to 1,800 seconds.
  • the method of immersing and dyeing a polyvinyl alcohol-type film in the aqueous solution containing water-soluble dichroic dye is employ
  • the content of the dichroic dye in this aqueous solution is usually 1 ⁇ 10 -4 to 10 parts by weight, preferably 1 ⁇ 10 -3 to 1 part by weight per 100 parts by weight of water.
  • This aqueous solution may contain inorganic salts, such as sodium sulfate, as a dyeing adjuvant.
  • the temperature of the dye aqueous solution used for dyeing is 20-80 degreeC normally, and the immersion time with this aqueous solution is 10-1,800 second normally.
  • Boric acid treatment of the dyed polyvinyl alcohol-based film can be carried out by immersing in a boric acid-containing aqueous solution.
  • the content of boric acid in the aqueous solution containing boric acid is 2 to 15 parts by weight, preferably 5 to 12 parts by weight with respect to 100 parts by weight of water.
  • the boric acid-containing aqueous solution preferably contains potassium iodide, and its content is usually 0.1 to 15 parts by weight, preferably 5 to 12 parts by weight with respect to 100 parts by weight of water.
  • the temperature of the boric acid-containing aqueous solution is usually 50 ° C or higher, preferably 50 to 85 ° C, more preferably 60 to 80 ° C, and the immersion time is usually 60 to 1,200 seconds, preferably 150 to 600 seconds, more preferably 200 to 400 seconds.
  • the polyvinyl alcohol-based film is usually washed with water and dried. Washing treatment can be performed by immersing the boric acid-treated polyvinyl alcohol-based film in water.
  • cleaning process is 5-40 degreeC normally, and immersion time is 1-120 second normally.
  • a polarizer can be obtained by drying after washing with water.
  • the drying treatment can usually be carried out using a hot air dryer or a far infrared heater.
  • the drying treatment temperature is usually 30 to 100 ° C, preferably 50 to 80 ° C, and the drying time is usually 60 to 600 seconds, preferably 120 to 600 seconds.
  • the thickness of the polarizer produced as described above is typically 5 to 40 ⁇ m.
  • the polarizer protective film is not particularly limited as long as it has excellent transparency, mechanical strength, thermal stability, moisture shielding, isotropy, and the like, and specifically, acrylic, cellulose, polyolefin, cyclic olefin, polyester or polycarbonate may be used. have.
  • Acrylic resin such as polymethyl (meth) acrylate and polyethyl (meth) acrylate
  • Polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate, and polybutylene terephthalate
  • Cellulose resins such as diacetyl cellulose and triacetyl cellulose
  • Polyolefin resins such as polyethylene, polypropylene, cyclo-based or norbornene-structured polyolefins, ethylene-propylene copolymers
  • Polycarbonate resin etc. are mentioned.
  • the thickness of a polarizer protective film is 10-200 micrometers, Preferably it is 10-150 micrometers.
  • the polarizer protective film is laminated on both sides of the polarizer may maintain the same or different thickness.
  • the surface easily bonded to the polarizer of the protective film can be easily bonded.
  • easy bonding include dry treatment such as primer treatment, plasma treatment, corona treatment, chemical treatment such as alkali treatment (soap treatment), and coating treatment to form an easy adhesive layer.
  • the surface bonded to the polarizer of the protective film may include a liquid crystal coating layer having a phase difference function cured by coating a reactive liquid crystal compound.
  • the liquid crystal coating layer may be a retarder for viewing angle compensation and a film patterned retarder for displaying a stereoscopic image.
  • Bonding method of the polarizer and the polarizer protective film may be a conventional method in the art, for example, using a casting method, Meyer bar coating method, gravure coating method, die coating method, dip coating method, spray coating method, etc.
  • the casting method is a method in which the adhesive composition is applied to the bonding surface while the polarizer or the protective film is generally moved in the vertical direction, the horizontal direction or the inclined direction between the two. After the adhesive composition is applied, the polarizer or the protective film is sandwiched by nip roll or the like.
  • the drying treatment is carried out, for example, by spraying hot air, and the drying temperature is appropriately selected in the range of 40 to 100 ° C, preferably 60 to 100 ° C. Drying time may be about 20 to 1,200 seconds. After drying, curing is preferably performed at room temperature or slightly higher, for example, at a temperature of 20 to 50 ° C. for about 12 to 600 hours.
  • optical functional film may be further laminated by the pressure-sensitive adhesive layer.
  • an optical compensation film in which a liquid crystalline compound or a polymer compound thereof is oriented on the surface of a substrate, reflective polarization that transmits polarized light of any kind and reflects polarized light having a property opposite thereto.
  • retardation film containing polycarbonate resin retardation film containing cyclic polyolefin-based resin, anti-glare function film having an uneven shape on the surface, an additional film subjected to the surface anti-reflection treatment, a reflection film having a reflection function on the surface,
  • the semi-transmissive reflective film etc. which have a reflection function and a transmission function together are mentioned.
  • the polarizing plate according to the present invention can be applied to all conventional liquid crystal display devices. Accordingly, one embodiment of the present invention relates to a liquid crystal display device including the polarizing plate.
  • the retardation (R in ) was applied by applying the adhesive composition to the cyclic olefin resin film and photocuring, and then separated by only the adhesive layer and measured in a size of 30 mm wide x 30 mm long.
  • the polarizing plate of Comparative Example 5 has a relatively high slope Luminance Max value, which indicates that the light leakage phenomenon of the slope is severe in the panel black driving state. Indicates.
  • UVA A polarizing plate was prepared by irradiating and curing UV with an accumulated light amount of 500 mJ / cm 2 and illuminance of 500 mW / cm 2 ). At this time, the end portion was prevented from applying the adhesive.
  • the peeling force was measured by cutting the prepared polarizing plate sample in a width of 25 mm and then peeling at a rate of 300 mm / min in a 180 degree peeling direction.
  • Typical adhesion is ideally 3.0N / 25mm.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)

Abstract

La présente invention concerne une plaque de polarisation, laquelle est fabriquée au moyen d'un adhésif, et un dispositif d'affichage à cristaux liquides la comprenant, la plaque de polarisation comprenant : une pellicule de protection de polariseur fixée à au moins une surface d'un polariseur ; et une couche adhésive permettant de fixer le polariseur et la pellicule de protection de polariseur, la force adhésive entre le polariseur et la pellicule de protection étant excellente, et la distorsion d'une valeur de différence de phase, laquelle est maintenue par la pellicule de protection, étant supprimée, réduisant ainsi au minimum la fuite de lumière se produisant dans le dispositif d'affichage à cristaux liquides et uniformisant la distribution de luminance pour chaque angle de vue.
PCT/KR2014/012531 2013-12-24 2014-12-18 Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant Ceased WO2015099358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130162519A KR102262160B1 (ko) 2013-12-24 2013-12-24 편광판 및 이를 포함하는 액정표시장치
KR10-2013-0162519 2013-12-24

Publications (1)

Publication Number Publication Date
WO2015099358A1 true WO2015099358A1 (fr) 2015-07-02

Family

ID=53479147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/012531 Ceased WO2015099358A1 (fr) 2013-12-24 2014-12-18 Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant

Country Status (2)

Country Link
KR (1) KR102262160B1 (fr)
WO (1) WO2015099358A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006047494A (ja) * 2004-08-02 2006-02-16 Nitto Denko Corp 位相差粘着剤層、その製造方法、粘着型光学フィルム、その製造方法および画像表示装置
JP2006208835A (ja) * 2005-01-28 2006-08-10 Hitachi Chem Co Ltd 感光性樹脂組成物及び感光性エレメント
US20090042004A1 (en) * 2005-10-18 2009-02-12 Nitto Denko Corporation Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, process for producing the pressure-sensitive adhesive layer, and optical member with pressure-sensitive adhesive
KR20100070336A (ko) * 2007-09-03 2010-06-25 스미또모 가가꾸 가부시키가이샤 점착제가 부착된 수지 필름과 그것을 이용한 광학 적층체
KR20130027872A (ko) * 2011-09-08 2013-03-18 제일모직주식회사 위상차 점착필름, 그 제조방법 및 이를 포함하는 광학부재

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101293902B1 (ko) 2008-07-01 2013-08-06 주식회사 엘지화학 점착제 조성물，편광판용 보호 필름，편광판 및 액정표시장치
KR101525128B1 (ko) * 2008-12-29 2015-06-03 동우 화인켐 주식회사 박막형 편광판의 제조방법, 박막형 편광판 및 이를 구비한 액정표시장치
JP2011081359A (ja) * 2009-09-09 2011-04-21 Nitto Denko Corp 偏光板の製造方法
TWI537356B (zh) * 2010-12-17 2016-06-11 Toagosei Co Ltd Photo-curable adhesive composition, polarizing plate and manufacturing method thereof, optical member and liquid crystal display device (1)
TWI533036B (zh) * 2011-10-14 2016-05-11 Ｌｇ化學股份有限公司 兩側具有保護膜之偏光件及包含其之光學裝置
KR101919577B1 (ko) * 2012-02-07 2018-11-19 동우 화인켐 주식회사 편광판용 접착제 조성물 및 이를 포함하는 편광판

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006047494A (ja) * 2004-08-02 2006-02-16 Nitto Denko Corp 位相差粘着剤層、その製造方法、粘着型光学フィルム、その製造方法および画像表示装置
JP2006208835A (ja) * 2005-01-28 2006-08-10 Hitachi Chem Co Ltd 感光性樹脂組成物及び感光性エレメント
US20090042004A1 (en) * 2005-10-18 2009-02-12 Nitto Denko Corporation Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, process for producing the pressure-sensitive adhesive layer, and optical member with pressure-sensitive adhesive
KR20100070336A (ko) * 2007-09-03 2010-06-25 스미또모 가가꾸 가부시키가이샤 점착제가 부착된 수지 필름과 그것을 이용한 광학 적층체
KR20130027872A (ko) * 2011-09-08 2013-03-18 제일모직주식회사 위상차 점착필름, 그 제조방법 및 이를 포함하는 광학부재

Also Published As

Publication number Publication date
KR20150074596A (ko) 2015-07-02
KR102262160B1 (ko) 2021-06-08

Similar Documents

Publication Publication Date Title
WO2013028047A2 (fr) Adhésif
WO2018110801A1 (fr) Composition adhésive pour plaque de polarisation, plaque de polarisation, et dispositif d'affichage optique
WO2011105874A2 (fr) Lame polarisante
WO2011105875A2 (fr) Plaque de polarisation
WO2011105876A2 (fr) Lame polarisante
WO2014035117A1 (fr) Plaque de polarisation
CN104777542B (zh) 偏振片
WO2014109489A1 (fr) Affichage à cristaux liquides
WO2020162677A1 (fr) Composition adhésive à radicaux libres, couche adhésive, plaque polarisante et dispositif d'affichage d'image
WO2019059630A2 (fr) Composition adhésive et plaque de polarisation dotée d'une couche adhésive formée au moyen de ladite composition
WO2013035977A1 (fr) Film adhésif à déphasage, procédé de fabrication de ce film et élément optique comportant ce film
WO2018159923A1 (fr) Film de fenêtre, stratifié de film de fenêtre le comprenant et dispositif d'affichage d'image
WO2022097594A1 (fr) Plaque de polarisation et dispositif d'affichage d'image l'utilisant
WO2020171458A1 (fr) Procédé de fabrication de plaque de polarisation
WO2016159645A1 (fr) Plaque de polarisation et dispositif d'affichage optique la comprenant
WO2016171389A1 (fr) Plaque de polarisation et appareil d'affichage optique la comprenant
WO2012128595A2 (fr) Composition adhésive
WO2016085072A1 (fr) Composition de couche de protection de polariseur, couche de protection de polariseur fabriquée à partir de celle-ci, plaque polarisante comprenant ladite couche et dispositif d'affichage optique comprenant celle-ci
KR101390469B1 (ko) 편광판 및 이를 구비한 화상표시장치
KR102816805B1 (ko) 이접착 필름, 편광판, 점착제가 부착된 편광판, 및 화상 표시 장치
WO2015099358A1 (fr) Plaque de polarisation et dispositif d'affichage à cristaux liquides la comprenant
KR101390468B1 (ko) 편광판 및 이를 구비한 화상표시장치
WO2022220442A1 (fr) Dispositif d'affichage à cristaux liquides
WO2022097595A1 (fr) Plaque de polarisation et dispositif d'affichage d'image l'utilisant
WO2014088273A1 (fr) Plaque polarisante et dispositif d'affichage à cristaux liquides comportant cette plaque

Legal Events

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

Ref document number: 14874322

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14874322

Country of ref document: EP

Kind code of ref document: A1