WO2018003838A1 - Highly durable polarizing plate, image display device using same, and method for producing polarizing plate - Google Patents
Highly durable polarizing plate, image display device using same, and method for producing polarizing plate Download PDFInfo
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- WO2018003838A1 WO2018003838A1 PCT/JP2017/023703 JP2017023703W WO2018003838A1 WO 2018003838 A1 WO2018003838 A1 WO 2018003838A1 JP 2017023703 W JP2017023703 W JP 2017023703W WO 2018003838 A1 WO2018003838 A1 WO 2018003838A1
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- film
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- 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
Definitions
- the polarizing plate according to the present invention includes at least one polarizing element film, a transparent protective layer provided on one or both sides of the polarizing element film, and an acrylic resin layer provided between the polarizing element film and the protective layer. It is characterized by providing.
- the polyvinyl alcohol film may contain an alkali metal, an alkaline earth metal, a halide, or an inorganic metal.
- the polyville alcohol-based film may contain one or more kinds
- a transparent protective layer is provided on both or one side of the polarizing element film.
- the transparent protective layer can be formed by applying a polymer or can be provided as a laminate layer of a film.
- the transparent polymer or film forming the transparent protective layer is preferably a transparent polymer or film having high mechanical strength and good thermal stability.
- a substance used as the transparent protective layer for example, triacetyl cellulose is preferable.
- the total hydroxyl value of the (meth) acrylate component is 95 to 120 mgKOH / g, preferably 100 to 120 mgKOH / g, more preferably 100 to 110 mgKOH / g, and most preferably 105 to 110 mgKOH / g.
- the (meth) acrylate (A) having a hydroxyl group is preferably a polyfunctional (meth) acrylate, and is a (meth) acrylate having three or more (meth) acryloyl groups in addition to the hydroxyl group. More preferably.
- dipentaerythritol pentaacrylate 107 mgKOH / g
- the content of the (meth) acrylate (B) having three or more (meth) acryloyl groups in the polymerizable resin composition is preferably 50 to 99% by weight in the solid content of the polymerizable resin composition, More preferably, it is 70 to 99% by weight.
- the thickness of the acrylic resin layer is 5 to 10 ⁇ m, preferably 5 to 8 ⁇ m. By setting the thickness of the acrylic resin layer within this range, there is an effect that the durability of the polarizing plate can be improved.
- the thickness of the acrylic resin layer is more than 10 ⁇ m, not only the polarizing plate becomes thick, but also when the acrylic resin layer and the polarizing element are bonded, the adhesive layer may be poorly dried and the like is not preferable.
- the manufacturing method of a polarizing plate is as follows: (1) a coating liquid preparation step in which a solvent is mixed with the polymerizable resin composition to prepare a coating liquid; and (2) the coating liquid is applied to a protective layer and dried. A coating film forming step of forming (3), an acrylic resin layer forming step of curing the coating film to form an acrylic resin layer, and (4) a dichroic dye adsorbed on the acrylic resin layer. A laminating step of laminating a polarizing element film which is a stretched film of a hydrophilic polymer.
- ISOBAM # 18 manufactured by Kuraray Co., Ltd.
- ISOBAM # 04 manufactured by Kuraray Co., Ltd.
- ammonia-modified ISOBAM # 104 manufactured by Kuraray Co., Ltd.
- ammonia-modified ISOBAM Examples include # 110 (manufactured by Kuraray Co., Ltd.), imidized ISOBAM # 304 (manufactured by Kuraray Co., Ltd.), and imidized ISOBAM # 310 (manufactured by Kuraray Co., Ltd.).
- Various known functional layers such as an antireflection layer, an antiglare layer, a hard coat layer, a liquid crystal coating layer for improving the viewing angle and / or contrast are laminated on the exposed surface of the protective layer of the polarizing plate. Also good.
- a coating method is preferable for producing a layer having various functionalities, but a film having the function may be bonded via an adhesive or a pressure-sensitive adhesive.
Abstract
Description
(1)
二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜と、
前記偏光素膜の両面又は片面に設けられた透明な保護層と、
前記偏光素膜と前記保護層との間に、アクリル系樹脂層を少なくとも1層と
を備える偏光板であって、
前記アクリル系樹脂層が、硬化後の厚みが5~10μmであり、水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有する重合性樹脂組成物であって、前記(メタ)アクリレート成分の全水酸基価が95~120mgKOH/gである重合性樹脂組成物を硬化させてなる層である、偏光板。
(2)
二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜と、
前記偏光素膜の両面又は片面に設けられた透明な保護層と、
前記偏光素膜と前記保護層との間に、アクリル系樹脂層を少なくとも1層と
を備える偏光板であって、
前記アクリル系樹脂層が、硬化後の厚みが5~10μmであり、水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有する重合性樹脂組成物であって、前記(メタ)アクリレート成分の全水酸基価が100~120mgKOH/gである重合性樹脂組成物を硬化させてなる層である、偏光板。
(3)
前記水酸基を有する(メタ)アクリレート(A)が(メタ)アクリロイル基を3つ以上有し、及び/又は、前記(メタ)アクリレート成分が(メタ)アクリロイル基を3つ以上有する(メタ)アクリレート(B)をさらに含有しており、前記(メタ)アクリレート成分全体における(メタ)アクリロイル基の数の平均値が3以上である(1)又は(2)に記載の偏光板。
(4)
前記(メタ)アクリレート(B)がペンタエリスリトール骨格を有する(3)に記載の偏光板。
(5)
前記保護層が、トリアセチルセルロースフィルムである(1)~(4)のいずれか一項に記載の偏光板。
(6)
前記トリアセチルセルロースフィルムが、ポリエステルを含有するトリアセチルセルロースフィルムである(5)に記載の偏光板。
(7)
前記ポリエステルを含有するトリアセチルセルロースフィルムが、面内位相差がゼロであり、厚み方向の位相差がゼロである(6)に記載の偏光板。ここで、位相差がゼロとは、面内位相差-10nm~+10nm、厚み方向の位相差-10nm~+10nmの範囲までを含むものとする。
(8)
(1)~(7)のいずれか一項に記載の偏光板を備える画像表示装置。
(9)
水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有し、前記(メタ)アクリレート成分の全水酸基価が95~120mgKOH/gである重合性樹脂組成物に溶剤を混合して塗布液を調製する工程と、
前記塗布液を透明な保護層に塗布し、乾燥して塗布膜を形成する工程と、
前記塗布膜を不活性ガス雰囲気下又は低酸素雰囲気下で硬化してアクリル系樹脂層を形成する工程と、
前記アクリル系樹脂層上に、二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜を積層する工程と
を含む、偏光板の製造方法であって、
前記溶剤が、前記保護層を溶解せず、Fedorsによる溶解度パラメータが10以上であり、沸点が100℃以上の溶剤Iと、前記保護層を溶解し、沸点が100℃以上である溶剤IIとを、溶剤I/溶剤IIが60/40~90/10の質量比で含む混合物である、
製造方法。
(10)
前記アクリル樹脂層を形成する工程と、前記偏光素膜を積層する工程との間に、前記アクリル系樹脂層をアルカリ性水溶液で処理し、水又は酸性水溶液で中和処理をして乾燥する工程と、乾燥後の前記アクリル系樹脂層及び/又は前記保護層に水系接着剤を塗布する工程とをさらに含む請求項9に記載の製造方法。 That is, the present invention relates to the following (1) to (10).
(1)
A polarizing element film that is a stretched film of a hydrophilic polymer adsorbing a dichroic dye;
Transparent protective layers provided on both sides or one side of the polarizing element film,
A polarizing plate comprising at least one acrylic resin layer between the polarizing element film and the protective layer,
A polymerizable resin composition wherein the acrylic resin layer has a cured thickness of 5 to 10 μm, and contains a (meth) acrylate component containing a (meth) acrylate (A) having a hydroxyl group, and a photopolymerization initiator. A polarizing plate, which is a layer formed by curing a polymerizable resin composition having a total hydroxyl value of 95 to 120 mgKOH / g of the (meth) acrylate component.
(2)
A polarizing element film that is a stretched film of a hydrophilic polymer adsorbing a dichroic dye;
Transparent protective layers provided on both sides or one side of the polarizing element film,
A polarizing plate comprising at least one acrylic resin layer between the polarizing element film and the protective layer,
A polymerizable resin composition wherein the acrylic resin layer has a cured thickness of 5 to 10 μm, and contains a (meth) acrylate component containing a (meth) acrylate (A) having a hydroxyl group, and a photopolymerization initiator. A polarizing plate, which is a layer formed by curing a polymerizable resin composition having a total hydroxyl value of 100 to 120 mgKOH / g of the (meth) acrylate component.
(3)
The (meth) acrylate (A) having a hydroxyl group has three or more (meth) acryloyl groups, and / or the (meth) acrylate component has three or more (meth) acryloyl groups (meth) acrylate ( The polarizing plate according to (1) or (2), further comprising B), wherein an average value of the number of (meth) acryloyl groups in the entire (meth) acrylate component is 3 or more.
(4)
The polarizing plate according to (3), wherein the (meth) acrylate (B) has a pentaerythritol skeleton.
(5)
The polarizing plate according to any one of (1) to (4), wherein the protective layer is a triacetyl cellulose film.
(6)
The polarizing plate according to (5), wherein the triacetyl cellulose film is a triacetyl cellulose film containing polyester.
(7)
The polarizing plate according to (6), wherein the triacetylcellulose film containing the polyester has an in-plane retardation of zero and a thickness direction retardation of zero. Here, the phase difference of zero includes an in-plane retardation of −10 nm to +10 nm and a thickness direction retardation of −10 nm to +10 nm.
(8)
An image display device comprising the polarizing plate according to any one of (1) to (7).
(9)
A polymerizable resin composition comprising a (meth) acrylate component containing a hydroxyl group-containing (meth) acrylate (A) and a photopolymerization initiator, wherein the total hydroxyl value of the (meth) acrylate component is 95 to 120 mgKOH / g. A step of preparing a coating solution by mixing a solvent with the product,
Applying the coating solution to a transparent protective layer and drying to form a coating film;
Curing the coating film in an inert gas atmosphere or a low oxygen atmosphere to form an acrylic resin layer; and
Laminating a polarizing element film, which is a stretched film of a hydrophilic polymer adsorbing a dichroic dye, on the acrylic resin layer, and a method for producing a polarizing plate,
The solvent does not dissolve the protective layer, the solubility parameter by Fedors is 10 or more, and the solvent I has a boiling point of 100 ° C. or higher, and the solvent II that dissolves the protective layer and has a boiling point of 100 ° C. or higher. , A mixture containing solvent I / solvent II in a mass ratio of 60/40 to 90/10.
Production method.
(10)
Between the step of forming the acrylic resin layer and the step of laminating the polarizing element film, the acrylic resin layer is treated with an alkaline aqueous solution, neutralized with water or an acidic aqueous solution, and dried. The manufacturing method of Claim 9 which further includes the process of apply | coating a water-system adhesive agent to the said acrylic resin layer and / or the said protective layer after drying.
本発明に係る偏光板は、偏光素膜と、偏光素膜の片面又は両面に設けられた透明保護層と、偏光素膜と保護層との間に設けられたアクリル系樹脂層を少なくとも1層とを備えることを特徴とする。 [Polarizer]
The polarizing plate according to the present invention includes at least one polarizing element film, a transparent protective layer provided on one or both sides of the polarizing element film, and an acrylic resin layer provided between the polarizing element film and the protective layer. It is characterized by providing.
式(I)において、樹脂の平均分子量は、(メタ)アクリレート成分に含まれる(メタ)アクリレートそれぞれの分子量と配合比から算出した(メタ)アクリレート混合物の平均分子量を表す。例えば、(メタ)アクリレート成分が、分子量MAの(メタ)アクリレート(A)をXA重量%、分子量MBの(メタ)アクリレート成分(B)をXB重量%含む場合、樹脂の平均分子量Mは、M=MA×XA/100+MB×XB/100で表される。(メタ)アクリレート成分がその他の(メタ)アクリレートを含む場合も同様に配合比に基づいて平均分子量を算出することができる。 The hydroxyl value in terms of solid content of the polymerizable resin composition can be determined by the following formula (I).
In formula (I), the average molecular weight of the resin represents the average molecular weight of the (meth) acrylate mixture calculated from the molecular weight and blending ratio of each (meth) acrylate contained in the (meth) acrylate component. For example, (meth) acrylate component, (meth) X A% by weight of acrylate (A) having a molecular weight M A, if the molecular weight M B of the (meth) acrylate component (B) including X B wt%, average molecular weight of the resin M is represented by M = M A × X A / 100 + M B × X B / 100. Similarly, when the (meth) acrylate component contains other (meth) acrylates, the average molecular weight can be calculated based on the blending ratio.
偏光板の製造方法は、(1)上記重合性樹脂組成物に溶剤を混合して塗布液を調製する塗布液調製工程と、(2)塗布液を保護層に塗布し、乾燥して塗布膜を形成する塗布膜形成工程と、(3)塗布膜を硬化してアクリル系樹脂層を形成するアクリル系樹脂層形成工程と、(4)アクリル系樹脂層上に、二色性色素が吸着した親水性高分子の延伸フィルムである偏光素膜を積層する積層工程とを含む。 [Production method of polarizing plate]
The manufacturing method of a polarizing plate is as follows: (1) a coating liquid preparation step in which a solvent is mixed with the polymerizable resin composition to prepare a coating liquid; and (2) the coating liquid is applied to a protective layer and dried. A coating film forming step of forming (3), an acrylic resin layer forming step of curing the coating film to form an acrylic resin layer, and (4) a dichroic dye adsorbed on the acrylic resin layer. A laminating step of laminating a polarizing element film which is a stretched film of a hydrophilic polymer.
硬化は、不活性ガス雰囲気下又は低酸素雰囲気下で行う。不活性ガス雰囲気としては、例えば、窒素置換をした環境が好ましい。不活性ガス雰囲気及び低酸素雰囲気における酸素濃度は、好ましくは50~10000ppmであり、より好ましくは1000ppm以下、さらに好ましくは100ppm以下である。不活性ガス雰囲気下又は低酸素雰囲気下で硬化を行わないと、偏光素膜との接着性に影響が出る。表面がしっかり硬化していないことにより、内部の低分子物が移行し、密着不良を起こすことが予想されている。 ,
Curing is performed in an inert gas atmosphere or a low oxygen atmosphere. As the inert gas atmosphere, for example, an environment in which nitrogen substitution is performed is preferable. The oxygen concentration in the inert gas atmosphere and the low oxygen atmosphere is preferably 50 to 10,000 ppm, more preferably 1000 ppm or less, and still more preferably 100 ppm or less. Unless curing is performed in an inert gas atmosphere or a low oxygen atmosphere, the adhesion to the polarizing element film is affected. Due to the fact that the surface is not hardened, it is expected that internal low molecular weight substances migrate and cause poor adhesion.
これまでは、保護フィルムの種類により偏光素膜との密着性が得られない場合や、偏光素膜との接着において、一般的な水系接着剤を使用しても接着しない問題があったが(例えば、特許第4947699号公報)、本発明に係る偏光板では、保護フィルムと偏光素膜との両方に対して密着性に優れたアクリル系樹脂層を保護層と偏光素膜との間に設けることにより、簡易に、これまで密着性が不良であった保護層であっても密着したり、従来よりも接着性を高めることができる。また、アクリル系樹脂層は、水系接着剤との接着性も良好である。 ,
Until now, there was a problem that adhesion with the polarizing element film could not be obtained depending on the type of the protective film, and even when a general aqueous adhesive was used in adhesion to the polarizing element film ( For example, in Japanese Patent No. 4947699, a polarizing plate according to the present invention, an acrylic resin layer having excellent adhesion to both the protective film and the polarizing element film is provided between the protective layer and the polarizing element film. By this, even if it is a protective layer which until now had poor adhesiveness, it can adhere or it can improve adhesiveness conventionally. In addition, the acrylic resin layer has good adhesiveness with a water-based adhesive.
また、形成されたアクリル系樹脂層は、位相差をゼロにしたトリアセチルセルロースフィルムに対する密着性と、偏光素膜に対する接着性との両方に優れている。ゼロ位相差を特徴とするトリアセチルセルロースフィルムと一般的なトリアセチルセルローフィルムでは溶剤の侵食性に大きな差があり、共通の重合性樹脂組成物にて基材密着性と偏光素膜接着性を双方のフィルムで達成するのは非常に困難であったにも拘らず、水酸基価の範囲、樹脂、溶剤の選定、及び硬化条件の最適化により達成することが可能となった。 ,
Moreover, the formed acrylic resin layer is excellent in both adhesion to a triacetyl cellulose film having a phase difference of zero and adhesion to a polarizing element film. There is a large difference in solvent erosion between triacetyl cellulose film characterized by zero phase difference and general triacetyl cellulose film, and common polymerizable resin composition provides base material adhesion and polarizing film adhesion. Although it was very difficult to achieve with both films, it was possible to achieve it by optimizing the range of hydroxyl value, selection of resin and solvent, and curing conditions.
工程(5a)では、積層工程(4)で得られた積層体(保護層/アクリル系樹脂層/偏光素膜)における偏光素膜上に、好ましくは接着剤を用いて、もう1枚の保護層を積層させる。これにより、保護層/アクリル系樹脂層/(接着層/)偏光素膜/(接着層/)保護層の層構成の偏光板を得ることができる。
工程(5b)では、上記工程(1)~(3)で得られる保護層とアクリル系樹脂層との積層体をさらに1組準備し、積層工程(4)で得られた積層体(保護層/アクリル系樹脂層/偏光素膜)における偏光素膜上に、偏光素膜とアクリル系樹脂層が隣接するように積層する。積層には接着剤を用いることが好ましい。工程(5b)により、保護層/アクリル系樹脂層/(接着層/)偏光素膜/(接着層/)アクリル系樹脂層/保護層の層構成を有する偏光板を得ることができる。
工程(5a)及び(5b)で用いる接着剤は、上述したものと同じものを用いることができる。 After the lamination step (4), (5a) a step of laminating a protective layer on the polarizing element film, or (5b) a step of laminating an acrylic resin layer provided on the protective layer on the polarizing element film. It is preferable to perform further.
In the step (5a), another protective sheet is preferably used on the polarizing element film in the laminate (protective layer / acrylic resin layer / polarizing element film) obtained in the laminating step (4), preferably using an adhesive. Laminate the layers. Thereby, a polarizing plate having a layer structure of protective layer / acrylic resin layer / (adhesive layer /) polarizing element film / (adhesive layer /) protective layer can be obtained.
In the step (5b), another set of a laminate of the protective layer and the acrylic resin layer obtained in the steps (1) to (3) is prepared, and the laminate (protective layer) obtained in the lamination step (4) is prepared. (Acrylic resin layer / polarizing element film) is laminated so that the polarizing element film and the acrylic resin layer are adjacent to each other. It is preferable to use an adhesive for the lamination. Through the step (5b), a polarizing plate having a layer structure of protective layer / acrylic resin layer / (adhesive layer /) polarizing element film / (adhesive layer /) acrylic resin layer / protective layer can be obtained.
As the adhesive used in the steps (5a) and (5b), the same adhesive as described above can be used.
ペンタエリスリトールトリアクリレート及びペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)95質量部、IRGACURE 184(BASF社製)5質量部、プロピレングリコールモノメチルエーテル(SP値:11.35、沸点:120℃)70質量部、シクロペンタノン(SP値:9.67、沸点:131℃)30質量部を撹拌混合し、紫外線硬化型の塗布液を得た。塗布液中の重合性成分の水酸基価は、105mgKOH/gであった。 [Production Example 1]
95 parts by mass of a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (KAYARAD PET-30 manufactured by Nippon Kayaku Co., Ltd.), 5 parts by mass of IRGACURE 184 (manufactured by BASF), propylene glycol monomethyl ether (SP value: 11.35) , 70 parts by mass of boiling point: 120 ° C. and 30 parts by mass of cyclopentanone (SP value: 9.67, boiling point: 131 ° C.) were stirred and mixed to obtain an ultraviolet curable coating solution. The hydroxyl value of the polymerizable component in the coating solution was 105 mgKOH / g.
ペンタエリスリトールトリアクリレート及びペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)95質量部に代えて、ジペンタエリスリトールモノヒドロキシペンタアクリレート(サートマー社製 SR399)95質量部を用いた点以外は作製例1と同様にして、偏光板を得た。塗布液中の重合性成分の水酸基価は、107mgKOH/gであった。 [Production Example 2]
Instead of 95 parts by mass of a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (KAYARAD PET-30 manufactured by Nippon Kayaku Co., Ltd.), 95 parts by mass of dipentaerythritol monohydroxypentaacrylate (SR399 manufactured by Sartomer) was used. A polarizing plate was obtained in the same manner as in Production Example 1 except for the above point. The hydroxyl value of the polymerizable component in the coating solution was 107 mgKOH / g.
作製例1で用いた塗布液に代えて、ジペンタエリスリトールヘキサアクリレートとジペンタエリスリトールペンタアクリレートとの混合物(日本化薬(株)製 KAYARAD DPHA)48重量部、ペンタエリスリトールトリアクリレートとペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)28質量部、トリシクロデカンアクリレート(日立化成(株)製 FA-513AS)19質量部、IRGACURE 184(BASF社製)5質量部、トルエン(SP値:9.1、沸点:97℃)70質量部、シクロペンタノン(SP値:9.6、沸点:131℃)30質量部を撹拌混合して得た塗布液を用いた点以外は作製例1と同様にして偏光板を得た。塗布液中の重合性成分の水酸基価は、60mgKOH/gであった。 [Production Example 3]
Instead of the coating solution used in Preparation Example 1, 48 parts by weight of a mixture of dipentaerythritol hexaacrylate and dipentaerythritol pentaacrylate (KAYARAD DPHA manufactured by Nippon Kayaku Co., Ltd.), pentaerythritol triacrylate and pentaerythritol tetraacrylate 28 parts by mass of KAYARAD PET-30 manufactured by Nippon Kayaku Co., Ltd. 19 parts by mass of tricyclodecane acrylate (FA-513AS manufactured by Hitachi Chemical Co., Ltd.), 5 parts by mass of IRGACURE 184 (manufactured by BASF), toluene (SP value: 9.1, boiling point: 97 ° C.), except for using a coating solution obtained by stirring and mixing 70 parts by mass and cyclopentanone (SP value: 9.6, boiling point: 131 ° C.) 30 parts by mass. Obtained a polarizing plate in the same manner as in Production Example 1. The hydroxyl value of the polymerizable component in the coating solution was 60 mgKOH / g.
硬化後の膜厚が3.5μmとなるように塗布液を塗工した点以外は作製例1と同様にして偏光板を得た。 [Production Example 4]
A polarizing plate was obtained in the same manner as in Production Example 1 except that the coating solution was applied so that the film thickness after curing was 3.5 μm.
塗布液の溶剤として、プロピレングリコールモノメチルエーテル(SP値:11.2、沸点:120℃)70質量部及びシクロペンタノン(SP値:9.6、沸点:131℃)30質量部に代えて、メチルエチルケトン(SP値:9、沸点:79.6℃)85質量部及びシクロペンタノン(SP値:9.6、沸点:131℃)30質量部を用いた点以外は、作製例1と同様にして偏光板を得た。 [Production Example 5]
As a solvent for the coating solution, instead of 70 parts by mass of propylene glycol monomethyl ether (SP value: 11.2, boiling point: 120 ° C.) and 30 parts by mass of cyclopentanone (SP value: 9.6, boiling point: 131 ° C.), Except for using 85 parts by mass of methyl ethyl ketone (SP value: 9, boiling point: 79.6 ° C.) and 30 parts by mass of cyclopentanone (SP value: 9.6, boiling point: 131 ° C.), the same as in Production Example 1. Thus, a polarizing plate was obtained.
ペンタエリスリトールトリアクリレート及びペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)95質量部に代えて、ペンタエリスリトールトリアクリレート及びペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)85.5質量部及びジシクロペンタジエニルジアクリレート(日本化薬(株)製 R-684)9.5質量部を用いた点以外は、作製例1と同様にして偏光板を得た。塗布液中の重合性成分の水酸基価は、95mgKOH/gであった。 [Production Example 6]
Instead of 95 parts by mass of a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (KAYARAD PET-30 manufactured by Nippon Kayaku Co., Ltd.), a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (manufactured by Nippon Kayaku Co., Ltd.) Polarized light in the same manner as in Preparation Example 1 except that 85.5 parts by mass of KAYARAD PET-30) and 9.5 parts by mass of dicyclopentadienyl diacrylate (R-684 manufactured by Nippon Kayaku Co., Ltd.) were used. I got a plate. The hydroxyl value of the polymerizable component in the coating solution was 95 mgKOH / g.
ペンタエリスリトールトリアクリレート及びペンタエリスリトールテトラアクリレートの混合物(日本化薬(株)製 KAYARAD PET-30)95質量部に代えて、ジペンタエリスリトールヘキサアクリレート及びジペンタエリスリトールペンタアクリレートの混合物(日本化薬(株)製 KAYARAD DPHA)95質量部を用いた点以外は作製例1と同様にして偏光板を得た。塗布液中の重合性成分の水酸基価は、42mgKOH/gであった。 [Production Example 7]
Instead of 95 parts by mass of a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (KAYARAD PET-30 manufactured by Nippon Kayaku Co., Ltd.), a mixture of dipentaerythritol hexaacrylate and dipentaerythritol pentaacrylate (Nippon Kayaku Co., Ltd.) KAYARAD DPHA) A polarizing plate was obtained in the same manner as in Production Example 1 except that 95 parts by mass was used. The hydroxyl value of the polymerizable component in the coating solution was 42 mgKOH / g.
窒素雰囲気下(酸素濃度1%以下)に代えて、空気中で、高圧水銀灯を用いて硬化させた点以外は作製例1と同様にして偏光板を得た。 [Production Example 8]
A polarizing plate was obtained in the same manner as in Production Example 1 except that the film was cured in air using a high-pressure mercury lamp instead of under a nitrogen atmosphere (oxygen concentration of 1% or less).
アクリル系樹脂層を設けない点以外は作製例1と同様にして偏光板を得た。 [Production Example 9]
A polarizing plate was obtained in the same manner as in Production Example 1 except that the acrylic resin layer was not provided.
作製例1~8で得られた偏光板について、保護層とアクリル系樹脂層との密着性、及び偏光素膜とアクリル系樹脂層との接着性を確認した。 [Evaluation 1]
For the polarizing plates obtained in Preparation Examples 1 to 8, adhesion between the protective layer and the acrylic resin layer and adhesion between the polarizing element film and the acrylic resin layer were confirmed.
日本工業規格JIS-K5600-5-6にしたがって保護層とアクリル系樹脂層の密着性を評価した。具体的には、作製例1~8で得られた偏光板のアクリル系樹脂層(ハードコート層)に1mm間隔で100個のマス目をカッターで作製し、ニチバン社製CELLOTAPE(登録商標)CT-24をしっかり密着させた後、90度方向に一気に剥がした。100個のマス目のうち100個とも良好に密着したままである場合は「○」とし、マス目の剥がれが発生した場合は「×」と評価し、表1に示した。 <Adhesion between protective layer and acrylic resin layer>
The adhesion between the protective layer and the acrylic resin layer was evaluated according to Japanese Industrial Standard JIS-K5600-5-6. Specifically, 100 squares were produced at 1 mm intervals on the acrylic resin layer (hard coat layer) of the polarizing plate obtained in Production Examples 1 to 8, and CELLOTAPE (registered trademark) CT manufactured by Nichiban Co., Ltd. After -24 was in close contact, it was peeled off at 90 degrees. When 100 of the 100 squares remained in close contact with each other, the evaluation was “◯”, and when peeling of the square occurred, the evaluation was “X”.
以下の試験法にしたがって偏光素膜とアクリル系樹脂層との接着性を評価した。
作製例1~8の偏光板を粘着剤にてガラスに固定し、偏光板の端部から、カッターを偏光素膜とアクリル系樹脂層の間に入れて剥がそうとした。偏光素膜とアクリル系樹脂層とが剥がれてない又は剥がれにくい場合は「○」とし、偏光素膜とアクリル系樹脂層とが容易に剥がれた場合は「×」と評価し、表1に示した。 <Adhesiveness between polarizing film and acrylic resin layer>
The adhesion between the polarizing element film and the acrylic resin layer was evaluated according to the following test method.
The polarizing plates of Production Examples 1 to 8 were fixed to glass with an adhesive, and the cutter was inserted between the polarizing element film and the acrylic resin layer from the end of the polarizing plate to be peeled off. When the polarizing element film and the acrylic resin layer are not peeled off or difficult to peel off, it is evaluated as “◯”, and when the polarizing element film and the acrylic resin layer are easily peeled off, “x” is evaluated and shown in Table 1. It was.
密着性が比較的良好であった作製例1、2、4、6、8、及び9について、乾熱試験及び湿熱試験を行い、その前後の透過率(単体透過率Ys、平行位透過率Yp、直交位透過率Yc、)、偏光度Py、及びコントラストCRの変化を確認した。 [Evaluation 2]
With respect to Production Examples 1, 2, 4, 6, 8, and 9 having relatively good adhesion, a dry heat test and a wet heat test were performed, and transmittances before and after that (single transmittance Ys, parallel transmittance Yp). , Orthogonal transmittance Yc,), polarization degree Py, and contrast CR were confirmed.
各偏光板について、分光光度計(日本分光(株)製 “V7100”)を用いて、各波長における、透過率Ts、Tp及びTcを測定した。ここで、透過率Tsは、測定試料を1枚で測定した際の各波長の分光透過率である。また、透過率Tpは,測定試料2枚をその吸収軸方向が平行となるように重ねて合わせて測定した際の各波長の分光透過率であり、透過率Tcは,測定試料2枚をその吸収軸方向が直交するように重ねて合わせて測定した際の各波長の分光透過率である。 (Transmissivity Ts, Tp and Tc)
About each polarizing plate, the transmittance | permeability Ts, Tp, and Tc in each wavelength was measured using the spectrophotometer (JASCO Corporation Co., Ltd. product "V7100"). Here, the transmittance Ts is a spectral transmittance of each wavelength when a single measurement sample is measured. The transmittance Tp is the spectral transmittance of each wavelength when two measurement samples are overlapped and measured so that their absorption axis directions are parallel, and the transmittance Tc is the two measurement samples. It is the spectral transmittance of each wavelength when measured by overlapping the absorption axis directions so as to be orthogonal.
各測定試料について、単体透過率Ys、平行位透過率Yp及び直交位透過率Ycをそれぞれ求めた。単体透過率Ys、平行位透過率Yp及び直交位透過率Ycは、400~700nmの波長領域で、所定波長間隔dλ(ここでは10nm)おきに求めた上記透過率Ts、Tp及びTcのそれぞれについて、JIS Z 8722:2009に従って視感度に補正した透過率である。具体的には、上記透過率Ts、Tp及びTcを下記式(II)~(IV)に代入して、それぞれ算出した。なお、下記式(II)~(IV)中、Pλは標準光(C光源)の分光分布を表し、yλは2度視野等色関数を表す。また、単体透過率YsをYs0として表2に示す。
For each measurement sample, single transmittance Ys, parallel transmittance Yp, and orthogonal transmittance Yc were determined. The single transmittance Ys, the parallel transmittance Yp, and the orthogonal transmittance Yc are the respective transmittances Ts, Tp, and Tc obtained at predetermined wavelength intervals dλ (here, 10 nm) in the wavelength region of 400 to 700 nm. , The transmittance corrected to the visibility according to JIS Z 8722: 2009. Specifically, the transmittances Ts, Tp and Tc were calculated by substituting them into the following formulas (II) to (IV). In the following formulas (II) to (IV), Pλ represents the spectral distribution of the standard light (C light source), and yλ represents the color matching function of the double field of view. The single transmittance Ys is shown in Table 2 as Ys0.
各測定試料について、偏光度ρyを求めた。偏光度ρyは、下記式(V)に上記平行位透過率Yp及び直交位透過率Ycを代入して算出した。結果を表1に示す。
ρy={(Yp-Yc)/(Yp+Yc)}1/2×100 ・・・式(V) [Degree of polarization ρy]
The degree of polarization ρy was determined for each measurement sample. The degree of polarization ρy was calculated by substituting the parallel transmittance Yp and the orthogonal transmittance Yc into the following formula (V). The results are shown in Table 1.
ρy = {(Yp−Yc) / (Yp + Yc)} 1/2 × 100 Expression (V)
コントラストCRは、平行位透過率Yp及び直交位透過率Ycから、下記式(VI)により求めた。
CR=Yp/Yc ・・・式(VI) (Contrast CR)
The contrast CR was obtained from the parallel transmission Yp and the orthogonal transmission Yc by the following formula (VI).
CR = Yp / Yc Formula (VI)
乾熱試験では、偏光板を、温度95℃の乾熱条件下に500時間放置した。乾熱試験の前と後での透過率、及び偏光度を測定した。その結果を表2に示す。
表2において、Ys0は初期透過率、ρ0は初期偏光度、Ys-Dryは乾熱試験後の透過率、ρ-Dryは乾熱試験後の偏光度、ΔYsは初期から乾熱試験後での透過率変化量、Δρは初期から乾熱試験後での偏光度変化量を示す。 <Dry heat test>
In the dry heat test, the polarizing plate was allowed to stand for 500 hours under dry heat conditions at a temperature of 95 ° C. The transmittance and the degree of polarization before and after the dry heat test were measured. The results are shown in Table 2.
In Table 2, Ys0 is the initial transmittance, ρ0 is the initial polarization degree, Ys-Dry is the transmittance after the dry heat test, ρ-Dry is the polarization degree after the dry heat test, and ΔYs is from the initial to the dry heat test. The transmittance change amount, Δρ, represents the change in polarization degree after the dry heat test from the initial stage.
湿熱試験では、偏光板を、温度60℃、相対湿度90%の湿熱雰囲気中で、500時間放置した。湿熱試験の前と後での透過率及び偏光度を測定した。その結果を表3に示す。
表3において、Ys0は初期透過率、ρ0は初期偏光度、Ys-Wetは湿熱試験後の透過率、ρ-Wetは湿熱試験後の偏光度、ΔYsは初期から湿熱試験後での透過率変化量、Δρは初期から湿熱試験後での偏光度変化量を示す。 <Moist heat test>
In the wet heat test, the polarizing plate was left for 500 hours in a wet heat atmosphere at a temperature of 60 ° C. and a relative humidity of 90%. The transmittance and the degree of polarization before and after the wet heat test were measured. The results are shown in Table 3.
In Table 3, Ys0 is the initial transmittance, ρ0 is the initial polarization, Ys-Wet is the transmittance after the wet heat test, ρ-Wet is the polarization after the wet heat test, and ΔYs is the change in transmittance from the initial to the wet heat test. The amount, Δρ, indicates the amount of change in polarization degree after the wet heat test from the initial stage.
また、ゼロ位相差を特徴とするトリアセチルセルロースフィルムと一般的なトリアセチルセルローフィルムでは溶剤の侵食性に大きな差があり、共通の重合性樹脂組成物にて基材密着性と偏光素膜接着性を双方のフィルムで達成するのは非常に困難であったにも拘らず、水酸基価の範囲、樹脂、溶剤の選定、及び硬化条件が特定の範囲に最適化された作製例1、2、及び4は、双方のフィルムで達成することができた。
Summarizing the results in Tables 1 to 4, the polarizing plates of Production Examples 1 and 2 have little deterioration in transmittance and degree of polarization before and after the wet heat test, and large reduction in contrast after the dry heat test and after the wet heat test. There wasn't. Therefore, it was shown that the polarizing plates of Production Examples 1 and 2 have improved wet heat durability. On the other hand, in Production Examples 4, 6, and 9, the deterioration of the transmittance and the polarization degree after the wet heat test was large. In Production Example 8, although the transmittance deterioration after the wet heat test was not large, the contrast was significantly reduced after the wet heat test and after the dry heat test.
In addition, there is a large difference in solvent erosion between triacetyl cellulose film characterized by zero phase difference and general triacetyl cellulose film. Although it was very difficult to achieve the properties with both films, the examples of production 1, 2 in which the range of hydroxyl value, selection of resin and solvent, and curing conditions were optimized to a specific range, And 4 could be achieved with both films.
Claims (10)
- 二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜と、
前記偏光素膜の両面又は片面に設けられた透明な保護層と、
前記偏光素膜と前記保護層との間に、アクリル系樹脂層を少なくとも1層と
を備える偏光板であって、
前記アクリル系樹脂層が、硬化後の厚みが5~10μmであり、水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有する重合性樹脂組成物であって、前記(メタ)アクリレート成分の全水酸基価が95~120mgKOH/gである重合性樹脂組成物を硬化させてなる層である、偏光板。 A polarizing element film that is a stretched film of a hydrophilic polymer adsorbing a dichroic dye;
Transparent protective layers provided on both sides or one side of the polarizing element film,
A polarizing plate comprising at least one acrylic resin layer between the polarizing element film and the protective layer,
A polymerizable resin composition wherein the acrylic resin layer has a cured thickness of 5 to 10 μm, and contains a (meth) acrylate component containing a (meth) acrylate (A) having a hydroxyl group, and a photopolymerization initiator. A polarizing plate, which is a layer formed by curing a polymerizable resin composition having a total hydroxyl value of 95 to 120 mgKOH / g of the (meth) acrylate component. - 二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜と、
前記偏光素膜の両面又は片面に設けられた透明な保護層と、
前記偏光素膜と前記保護層との間に、アクリル系樹脂層を少なくとも1層と
を備える偏光板であって、
前記アクリル系樹脂層が、硬化後の厚みが5~10μmであり、水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有する重合性樹脂組成物であって、前記(メタ)アクリレート成分の全水酸基価が100~120mgKOH/gである重合性樹脂組成物を硬化させてなる層である、偏光板。 A polarizing element film that is a stretched film of a hydrophilic polymer adsorbing a dichroic dye;
Transparent protective layers provided on both sides or one side of the polarizing element film,
A polarizing plate comprising at least one acrylic resin layer between the polarizing element film and the protective layer,
A polymerizable resin composition wherein the acrylic resin layer has a cured thickness of 5 to 10 μm, and contains a (meth) acrylate component containing a (meth) acrylate (A) having a hydroxyl group, and a photopolymerization initiator. A polarizing plate, which is a layer formed by curing a polymerizable resin composition having a total hydroxyl value of 100 to 120 mgKOH / g of the (meth) acrylate component. - 前記水酸基を有する(メタ)アクリレート(A)が(メタ)アクリロイル基を3つ以上有し、及び/又は、前記(メタ)アクリレート成分が(メタ)アクリロイル基を3つ以上有する(メタ)アクリレート(B)をさらに含有しており、前記(メタ)アクリレート成分全体における(メタ)アクリロイル基の数の平均値が3以上である請求項1又は2に記載の偏光板。 The (meth) acrylate (A) having a hydroxyl group has three or more (meth) acryloyl groups, and / or the (meth) acrylate component has three or more (meth) acryloyl groups (meth) acrylate ( The polarizing plate according to claim 1, further comprising B), wherein an average value of the number of (meth) acryloyl groups in the entire (meth) acrylate component is 3 or more.
- 前記(メタ)アクリレート(B)がペンタエリスリトール骨格を有する請求項3に記載の偏光板。 The polarizing plate according to claim 3, wherein the (meth) acrylate (B) has a pentaerythritol skeleton.
- 前記保護層が、トリアセチルセルロースフィルムである請求項1~4のいずれか一項に記載の偏光板。 The polarizing plate according to any one of claims 1 to 4, wherein the protective layer is a triacetyl cellulose film.
- 前記トリアセチルセルロースフィルムが、ポリエステルを含有するトリアセチルセルロースフィルムである請求項5に記載の偏光板。 The polarizing plate according to claim 5, wherein the triacetyl cellulose film is a triacetyl cellulose film containing polyester.
- 前記ポリエステルを含有するトリアセチルセルロースフィルムが、面内位相差がゼロであり、厚み方向の位相差がゼロである請求項6に記載の偏光板。ここで、位相差がゼロとは、面内位相差-10nm~+10nm、厚み方向の位相差-10nm~+10nmの範囲までを含むものとする。 The polarizing plate according to claim 6, wherein the triacetylcellulose film containing the polyester has an in-plane retardation of zero and a thickness direction retardation of zero. Here, the phase difference of zero includes an in-plane retardation of −10 nm to +10 nm and a thickness direction retardation of −10 nm to +10 nm.
- 請求項1~7のいずれか一項に記載の偏光板を備える画像表示装置。 An image display device comprising the polarizing plate according to any one of claims 1 to 7.
- 水酸基を有する(メタ)アクリレート(A)を含む(メタ)アクリレート成分と、光重合開始剤とを含有し、前記(メタ)アクリレート成分の全水酸基価が95~120mgKOH/gである重合性樹脂組成物に溶剤を混合して塗布液を調製する工程と、
前記塗布液を透明な保護層に塗布し、乾燥して塗布膜を形成する工程と、
前記塗布膜を不活性ガス雰囲気下又は低酸素雰囲気下で硬化してアクリル系樹脂層を形成する工程と、
前記アクリル系樹脂層上に、二色性色素を吸着した親水性高分子の延伸フィルムである偏光素膜を積層する工程と
を含む、偏光板の製造方法であって、
前記溶剤が、前記保護層を溶解ぜす、Fedorsによる溶解度パラメータが10以上であり、沸点が100℃以上の溶剤Iと、前記保護層を溶解し、沸点が100℃以上である溶剤IIとを、溶剤I/溶剤IIが60/40~90/10の質量比で含む混合物である、
製造方法。 A polymerizable resin composition comprising a (meth) acrylate component containing a hydroxyl group-containing (meth) acrylate (A) and a photopolymerization initiator, wherein the total hydroxyl value of the (meth) acrylate component is 95 to 120 mgKOH / g. A step of preparing a coating solution by mixing a solvent with the product,
Applying the coating solution to a transparent protective layer and drying to form a coating film;
Curing the coating film in an inert gas atmosphere or a low oxygen atmosphere to form an acrylic resin layer; and
Laminating a polarizing element film, which is a stretched film of a hydrophilic polymer adsorbing a dichroic dye, on the acrylic resin layer, and a method for producing a polarizing plate,
The solvent dissolves the protective layer, the solubility parameter according to Fedors is 10 or more and the boiling point is 100 ° C. or higher, and the solvent I dissolves the protective layer and the boiling point is 100 ° C. or higher. , A mixture containing solvent I / solvent II in a mass ratio of 60/40 to 90/10.
Production method. - 前記アクリル樹脂層を形成する工程と、前記偏光素膜を積層する工程との間に、前記アクリル系樹脂層をアルカリ性水溶液で処理し、水又は酸性水溶液で中和処理をして乾燥する工程と、乾燥後の前記アクリル系樹脂層及び/又は前記保護層に水系接着剤を塗布する工程とをさらに含む請求項9に記載の製造方法。
Between the step of forming the acrylic resin layer and the step of laminating the polarizing element film, the acrylic resin layer is treated with an alkaline aqueous solution, neutralized with water or an acidic aqueous solution, and dried. The manufacturing method of Claim 9 which further includes the process of apply | coating a water-system adhesive agent to the said acrylic resin layer and / or the said protective layer after drying.
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CN201780029513.7A CN109154687B (en) | 2016-06-30 | 2017-06-28 | Highly durable polarizing plate, image display device using the same, and method for producing polarizing plate |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019203155A1 (en) * | 2018-04-20 | 2019-10-24 | 株式会社ポラテクノ | Anti-glare hard coat film and optical member using same |
JP2020118918A (en) * | 2019-01-28 | 2020-08-06 | 日東電工株式会社 | Laminate, optical film, image display device, and manufacturing method therefor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003098352A (en) * | 2001-07-19 | 2003-04-03 | Nitto Denko Corp | Polarizing plate and method for manufacturing the same, protective film for polarizing plate, and optical film and image display device each using polarizing plate |
WO2010095447A1 (en) * | 2009-02-20 | 2010-08-26 | 日本化薬株式会社 | Dye-containing polarizing plate having cured resin layer |
JP2011237789A (en) * | 2010-04-15 | 2011-11-24 | Nitto Denko Corp | Hard coat film, polarizing plate, image display device, and method for manufacturing hard coat film |
JP2012048214A (en) * | 2010-07-30 | 2012-03-08 | Konica Minolta Opto Inc | Method for manufacturing optical film, and polarizing plate |
WO2015163224A1 (en) * | 2014-04-25 | 2015-10-29 | 日本化薬株式会社 | Highly durable iodine polarizing element |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4836909A (en) * | 1985-11-25 | 1989-06-06 | Research Association For Residual Oil Processing | Process of thermally cracking heavy petroleum oil |
JP2001166139A (en) | 1999-12-07 | 2001-06-22 | Kuraray Co Ltd | Polarizing plate |
JP3907908B2 (en) | 2000-03-24 | 2007-04-18 | 三井化学株式会社 | Protective film for polarizing plate and polarizing plate using the same |
JP4307029B2 (en) | 2002-08-12 | 2009-08-05 | ソニーケミカル&インフォメーションデバイス株式会社 | Polarizer |
JP4131104B2 (en) | 2001-12-21 | 2008-08-13 | ソニーケミカル&インフォメーションデバイス株式会社 | Polarizer |
JP2004012578A (en) | 2002-06-04 | 2004-01-15 | Sumitomo Chem Co Ltd | Iodine polarizing plate and method for manufacturing the same |
JP2005148519A (en) * | 2003-11-18 | 2005-06-09 | Konica Minolta Opto Inc | Polarizing plate and display device |
JP4923670B2 (en) * | 2006-03-29 | 2012-04-25 | 住友化学株式会社 | Manufacturing method of high hardness hard coat film |
JP4822432B2 (en) * | 2006-07-25 | 2011-11-24 | 日東電工株式会社 | Liquid crystal panel and liquid crystal display device |
JP4947699B2 (en) * | 2006-09-11 | 2012-06-06 | 日本化薬株式会社 | High durability polarizing plate provided with a layer obtained from a polymerizable resin composition |
JP4919403B2 (en) * | 2006-09-14 | 2012-04-18 | 日本化薬株式会社 | High durability polarizing plate |
JP2009197222A (en) * | 2008-01-25 | 2009-09-03 | Nitto Denko Corp | Method of stripping pressure-sensitive adhesive optical film and pressure-sensitive adhesive optical film |
JP2009217241A (en) * | 2008-02-14 | 2009-09-24 | Toyo Ink Mfg Co Ltd | Green colored composition for color filter, and color filter |
JP5500780B2 (en) * | 2008-04-03 | 2014-05-21 | 日東電工株式会社 | Adhesive polarizing plate, image display device, and manufacturing method thereof |
WO2011142429A1 (en) * | 2010-05-12 | 2011-11-17 | 大日本印刷株式会社 | Optical laminate, polarizing plate and image display device |
JPWO2014208749A1 (en) * | 2013-06-28 | 2017-02-23 | 日本化薬株式会社 | UV curable hard coat resin composition |
-
2017
- 2017-06-28 KR KR1020187036912A patent/KR102368117B1/en active IP Right Grant
- 2017-06-28 WO PCT/JP2017/023703 patent/WO2018003838A1/en active Application Filing
- 2017-06-28 CN CN201780029513.7A patent/CN109154687B/en active Active
- 2017-06-28 JP JP2018525199A patent/JP6921070B2/en active Active
- 2017-06-30 TW TW106121983A patent/TWI802544B/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003098352A (en) * | 2001-07-19 | 2003-04-03 | Nitto Denko Corp | Polarizing plate and method for manufacturing the same, protective film for polarizing plate, and optical film and image display device each using polarizing plate |
WO2010095447A1 (en) * | 2009-02-20 | 2010-08-26 | 日本化薬株式会社 | Dye-containing polarizing plate having cured resin layer |
JP2011237789A (en) * | 2010-04-15 | 2011-11-24 | Nitto Denko Corp | Hard coat film, polarizing plate, image display device, and method for manufacturing hard coat film |
JP2012048214A (en) * | 2010-07-30 | 2012-03-08 | Konica Minolta Opto Inc | Method for manufacturing optical film, and polarizing plate |
WO2015163224A1 (en) * | 2014-04-25 | 2015-10-29 | 日本化薬株式会社 | Highly durable iodine polarizing element |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019203155A1 (en) * | 2018-04-20 | 2019-10-24 | 株式会社ポラテクノ | Anti-glare hard coat film and optical member using same |
JP2020118918A (en) * | 2019-01-28 | 2020-08-06 | 日東電工株式会社 | Laminate, optical film, image display device, and manufacturing method therefor |
WO2020158397A1 (en) * | 2019-01-28 | 2020-08-06 | 日東電工株式会社 | Laminate, optical film, image display device and method for manufacturing same |
JP7370709B2 (en) | 2019-01-28 | 2023-10-30 | 日東電工株式会社 | Laminate, optical film, image display device, and manufacturing method thereof |
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