JP6498915B2 - 偏光板 - Google Patents
偏光板 Download PDFInfo
- Publication number
- JP6498915B2 JP6498915B2 JP2014233538A JP2014233538A JP6498915B2 JP 6498915 B2 JP6498915 B2 JP 6498915B2 JP 2014233538 A JP2014233538 A JP 2014233538A JP 2014233538 A JP2014233538 A JP 2014233538A JP 6498915 B2 JP6498915 B2 JP 6498915B2
- Authority
- JP
- Japan
- Prior art keywords
- polarizer
- acrylate
- polarizing plate
- film
- meth
- 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.)
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- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
-
- 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
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Laminated Bodies (AREA)
Description
平均重合度が2,400であり、鹸化度が99.9%以上の厚さ75μmのポリビニルアルコールフィルム(PS 7500、Kuraray社)を30℃の水(脱イオン水)で2分間浸漬して膨潤させた後、ヨード3.5mmol/Lとヨード化カリウム2重量%とが含有された30℃の染色用水溶液に4分浸漬して染色させた。この後、ヨード化カリウム2重量%とホウ酸3.7重量%とが添加された53℃の架橋用水溶液に2分間浸漬して架橋させた。
前記偏光子の両面に下記表2に記載された組成及び含有量の接着剤組成物を厚さ2μmになるように塗布した後、ニップロールを用いてコロナ処理されたアクリル系フィルム(未延伸PMMAフィルム、MD方向熱膨脹係数59.4ppm/K、TD方向熱膨脹係数53.6ppm/K)を両方に接合させた後、高圧水銀ランプでUV硬化させて偏光板を製造した。
(1)接着層の熱膨脹係数(CTE)
コロナ処理されていないシクロオレフィンポリマー(COP)フィルム(ゼオン社)1枚に前記表2の接着剤組成物をそれぞれ30μm厚さでバーコーティングで塗工した後、高圧水銀ランプ(UVA積算光量が500mJ/cm2×4回)でUV硬化を行った。
実施例及び比較例で製造された偏光板を15.0cm(MD)×11cm(TD)の大きさで切断した後、アクリル系接着剤組成物でガラスに接合し、オートクレーブ処理(50℃、20分、5気圧)を行った。
次いで、常温で24時間放置し、熱衝撃オーブン(温度が30分ずつ交互に−40℃から85℃に変更される、6時間が1サイクル)に偏光板を投入して時間により偏光子のクラックが発生したか否かを確認した。
Claims (6)
- MD方向の収縮力が3.5N/2mm以下である偏光子と保護フィルムとが、その間に介在される熱膨脹係数が112.1〜250ppm/Kである光硬化性接着層によって接着される、偏光板であって、
前記光硬化性接着層は、光硬化性接着剤組成物を露光させて形成したものであり、
前記光硬化性接着剤組成物は、
光ラジカル重合性化合物および光カチオン重合性化合物を含む光重合性化合物と、
光重合開始材とを含む、偏光板。 - 前記偏光子は、TD方向の収縮力が2.5N/2mm以下である、請求項1に記載の偏光板。
- 前記偏光子は、MD方向の収縮力がTD方向の収縮力の2.5倍以下である、請求項1に記載の偏光板。
- 前記保護フィルムは、アクリル系樹脂フィルム、ポリエステル系樹脂フィルム、セルロース系樹脂フィルム又はポリオレフィン系樹脂フィルムである、請求項1に記載の偏光板。
- 前記光硬化性接着層は、熱膨脹係数が200ppm/K以下である、請求項1に記載の偏光板。
- 請求項1乃至5の何れか一項に記載の偏光板を備える、画像表示装置。
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KR10-2014-0003984 | 2014-01-13 | ||
KR1020140003984A KR101938411B1 (ko) | 2014-01-13 | 2014-01-13 | 편광판 |
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JP2015132812A JP2015132812A (ja) | 2015-07-23 |
JP6498915B2 true JP6498915B2 (ja) | 2019-04-10 |
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JP (1) | JP6498915B2 (ja) |
KR (1) | KR101938411B1 (ja) |
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KR20170021476A (ko) * | 2015-08-18 | 2017-02-28 | 스미또모 가가꾸 가부시키가이샤 | 편광판 및 그의 제조방법 |
KR20170053039A (ko) * | 2015-11-05 | 2017-05-15 | 스미또모 가가꾸 가부시키가이샤 | 편광판 및 이를 포함하는 화상 표시 장치 |
KR20170053037A (ko) * | 2015-11-05 | 2017-05-15 | 스미또모 가가꾸 가부시키가이샤 | 편광자 및 그의 제조방법 |
TWI751939B (zh) * | 2015-11-13 | 2022-01-01 | 日商住友化學股份有限公司 | 偏光板、液晶顯示裝置及有機電激發光顯示裝置 |
KR102502207B1 (ko) * | 2016-03-31 | 2023-02-21 | 도요보 가부시키가이샤 | 편광자 보호 필름, 편광판 및 액정 표시 장치 |
JP6917684B2 (ja) * | 2016-07-28 | 2021-08-11 | 住友化学株式会社 | 偏光板 |
JP2020526795A (ja) * | 2017-07-14 | 2020-08-31 | エルジー・ケム・リミテッド | 偏光板 |
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JP4367868B2 (ja) * | 1999-01-11 | 2009-11-18 | 日東電工株式会社 | 位相差板の連続製造法、光学部材及び液晶表示装置 |
JP2002365435A (ja) * | 2001-04-03 | 2002-12-18 | Nitto Denko Corp | 配向フィルムの製造方法、偏光フィルム、偏光板および液晶表示装置 |
TWI296727B (en) * | 2001-09-19 | 2008-05-11 | Nitto Denko Corp | Polarizing plate and method of manufacturing the same, and liquid crystal display using the polarizing plate |
JP5046735B2 (ja) * | 2007-05-07 | 2012-10-10 | 協立化学産業株式会社 | フィルム接着装置及び偏光板製造装置 |
JP5257645B2 (ja) * | 2007-10-25 | 2013-08-07 | 住友化学株式会社 | 偏光フィルムの製造方法および偏光板の製造方法 |
JP2009069375A (ja) * | 2007-09-12 | 2009-04-02 | Sumitomo Chemical Co Ltd | 偏光板の製造方法 |
JP2009292869A (ja) * | 2008-06-02 | 2009-12-17 | Fujifilm Corp | アクリルフィルム、その製造方法、偏光板、光学補償フィルム、反射防止フィルムおよび液晶表示装置 |
JP2011203641A (ja) * | 2010-03-26 | 2011-10-13 | Sumitomo Chemical Co Ltd | 偏光板 |
JP5930636B2 (ja) * | 2011-09-27 | 2016-06-08 | 住友化学株式会社 | 偏光板 |
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- 2014-01-13 KR KR1020140003984A patent/KR101938411B1/ko active IP Right Grant
- 2014-11-18 TW TW103139842A patent/TWI647116B/zh active
- 2014-11-18 JP JP2014233538A patent/JP6498915B2/ja active Active
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- 2015-01-09 CN CN201510013142.6A patent/CN104777542B/zh active Active
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CN104777542A (zh) | 2015-07-15 |
KR101938411B1 (ko) | 2019-01-15 |
JP2015132812A (ja) | 2015-07-23 |
TW201527126A (zh) | 2015-07-16 |
TWI647116B (zh) | 2019-01-11 |
KR20150085157A (ko) | 2015-07-23 |
CN104777542B (zh) | 2017-10-24 |
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