JP4341904B2 - 異方性フィルムの製造方法 - Google Patents
異方性フィルムの製造方法 Download PDFInfo
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- JP4341904B2 JP4341904B2 JP2003321676A JP2003321676A JP4341904B2 JP 4341904 B2 JP4341904 B2 JP 4341904B2 JP 2003321676 A JP2003321676 A JP 2003321676A JP 2003321676 A JP2003321676 A JP 2003321676A JP 4341904 B2 JP4341904 B2 JP 4341904B2
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- film
- liquid crystal
- photoreactive
- substance
- light
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- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 125000006617 triphenylamine group Chemical group 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
-
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3016—Polarising elements involving passive liquid crystal 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/868—Arrangements for polarized light emission
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
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- Mathematical Physics (AREA)
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- Electroluminescent Light Sources (AREA)
Description
偏光素子上に直接形成された光反応性物質フィルムを準備し、
これに前記偏光素子を介して光を照射することにより、前記光反応性物質フィルムに異方性を付与し、前記光反応性物質フィルムが、前記偏光素子上に、光反応性物質の溶液または溶融液を塗工し、これを固化させることにより形成されることを特徴とする。前記光反応性物質は、光で異性化する物質、光で分解する物質または式(IV)で示す直線光重合ポリマーである。前記偏光素子は、プリズム偏光子である。
精度も向上し、かつ塵発生も抑制できる。
法で用いた偏光子付き異方性フィルムであってもよい。
液晶層、特にコレステリック液晶ポリマーの配向フィルムや、その配向液晶層をフィルム基材上に支持したもの等が使用できる。これらは、左右一方の円偏光を反射して、他の光は透過する特性を示すものであり、例えば、日東電工社製の商品名「PCF350」、Merck社製の商品名「Transmax」等が挙げられる。
ジスタ型に代表されるアクティブマトリクス駆動型のもの、ツイストネマチック(TN)型やスーパーツイストネマチック(STN)型に代表される単純マトリクス駆動型のもの、OCB(Optically Controlled Birefringence)セル、HAN(Hybrid Aligned Nematic)セル、VA(垂直配向;Vertical Aligned)セル等、種々のタイプの液晶セルが使用できる。
を完全に遮蔽することができるのである。
ポリビニルシンナメート(光反応性物質)を溶媒(シクロペンタノン)中に5重量%の割合で溶解させ、塗布溶液を調製した。このポリビニルシンナメート塗布溶液をグランテーラープリズム(偏光素子)の片面上にスピンコート法により塗布した。塗布後、100℃で3分間乾燥させ、厚み100nmのポリビニルシンナメートフィルム(光反応性物質フィルム)を形成し、積層物を得た。
光反応性物質としてスチルベンを用いた以外は、実施例1と同様にして、偏光素子上に配置された異方性フィルムを得た。
光反応性物質(商品名LPPF301、バンティコ(Vantico)製)を溶媒(シクロペンタノン)中に2重量%の割合で溶解させ、塗布溶液を調製した。この塗布溶液を偏光フィルタ(商品名:Ultraviolet Polarizer、Bolder Vision Optik社製)の片面上にスピンコート法により塗布した。塗布後、100℃で3分間乾燥させ、厚み100nmの光反応性物質フィルムを形成し、積層物を得た。
偏光素子として、ポリメチルペンテン100重量部と、短径0.1μm、長径10μmの針状酸化チタン3重量部を二軸混練してTダイを介し270℃で厚さ300μmのフィルムに成形した後、それを190℃で6倍に延伸した。このようにして得た、針状酸化チタンがほぼ一定方向に配向したフィルムを偏光子として用いた以外は、実施例1と同様にして、偏光素子上に異方性フィルムを形成した。
液晶性化合物(68.0重量%:商品名LCPCB483,Vantico社製)、光反応性物質(29.2重量%:商品名LPPF301、Vantico社製)、光開始剤(1.4重量%:イルガキュア(Irgacure369)(商標名)、チバ社製)および反応抑制剤(ブチルヒドロキシトルエン:1.4重量%)の混合物を調製した。この混合物を、シクロペンタノン中に溶解させ、5重量%の溶液とし、それを50℃で30分間攪拌後、0.2μmのフィルターでろ過して、塗布溶液を調製した。
光反応性物質の代わりにポリビニルアルコールを用いた以外は、実施例1と同様にして偏光素子上にフィルムを積層した。
実施例5において、光反応性物質を添加しない以外は、同実施例と同様の方法で偏光素子の上にフィルムを積層した。
コレステリック液晶相を示す化合物(商品名Paliocolor LC242およびLC756の混合物、BASF社製)を溶媒(シクロペンタノン)に20重量%の割合で溶解させ、溶液を調製した。この溶液を、実施例1〜3および参考例4で得た異方性フィルムの表面上に、スピンコート法で塗布し、層を形成した。そして、これを90℃で1分間加熱処理することによって、前記コレステリック液晶相を示す化合物層を配向させた後、光によって前記コレステリック液晶相を示す化合物層を重合させ、その配向を固定し、厚み1μmのコレステリック相を示す液晶層を形成した。この液晶層の各選択反射波長を下記表1に示す。同表に示すように、実施例1〜3および参考例4のそれぞれで得た異方性フィルム上に形成された液晶層が選択反射波長を示すので、実施例1〜3および参考例4のそれぞれで得た異方性フィルムが、液晶配向能を有することが確認できた。なお、比較例1のフィルムでは、コレステリック層の選択反射は確認されなかった。
ネマチック液晶相を示す化合物(商品名Paliocolor LC242、BASF社製)を溶媒(シクロペンタノン)に20重量%の割合で溶解し、溶液を調製した。その溶液を、実施例1〜3および参考例4で得た異方性フィルムの表面上に、スピンコート法で塗布した。そして、これを90℃で1分間加熱処理することによって、前記ネマチック液晶相を示す化合物名を配向させた後、光によって前記ネマチック液晶相を示す化合物を重合させ、その配向を固定し、厚み1μmのネマチック相を示す液晶層を形成した。
実施例5で得た異方性フィルムを、透明基材(TACフィルム)に、接着剤を用いて貼り合わせ、ついで偏光素子を剥離し、前記透明基材上の異方性フィルムを転写した。この異方性フィルムの位相差と遅相軸を、分光エリプソメータ(商品名M220、日本分光製)で測定した。その結果、実施例5で用いた偏光素子の偏光透過軸方向と、前記異方性フィルムの遅相軸とが等しいことが確認できた。位相差値は約100nm(測定波長590nm)であった。この結果より、実施例5で得た異方性フィルムは、光学異方性を示すといえる。
2 偏光素子
3 光反応性物質フィルム
4 照射光
5 偏光
Claims (13)
- 前記光反応性物質が、1〜780nmの範囲にある波長を有する光で反応しうる物質である請求項1に記載の製造方法。
- 前記光反応性物質フィルムが、前記光反応性物質に加えて液晶性化合物を含む請求項1または2に記載の製造方法。
- 前記液晶性化合物が、液晶性モノマー、液晶性オリゴマーおよび液晶性ポリマーからなる群から選択される少なくとも1つの液晶性化合物である請求項3に記載の製造方法。
- 前記光反応性物質フィルムが、前記光反応性物質に加えて液晶性モノマーまたは液晶性オリゴマーから製造された非液晶性ポリマーを含む請求項1〜4のいずれかに記載の製造方法。
- 前記光反応性物質が、光反応性部位を有する液晶性ポリマー、および光反応性部位を有する液晶性モノマーまたは液晶性オリゴマーから製造された非液晶性ポリマーからなる群から選択される少なくとも1つの物質である請求項1〜5のいずれかに記載の製造方法。
- 請求項1〜6のいずれかに記載の製造方法により製造された異方性フィルム。
- 請求項1または2に記載の製造方法により製造された異方性フィルムからなる液晶配向膜。
- 請求項3〜6のいずれかに記載の製造方法により製造された異方性フィルムを含む光学異方性フィルム。
- 異方性フィルムを含む光学フィルムであって、
前記異方性フィルムが、請求項7に記載の異方性フィルムである光学フィルム。 - 液晶セルおよび光学部材を含み、前記液晶セルの少なくとも一方の表面に前記光学部材が配置された液晶パネルであって、前記光学部材が、請求項10に記載の光学フィルムである液晶パネル。
- 液晶パネルを含む液晶表示装置であって、前記液晶パネルが請求項11に記載の液晶パネルである液晶表示装置。
- 請求項10に記載の光学フィルムを含む画像表示装置。
Priority Applications (7)
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JP2003321676A JP4341904B2 (ja) | 2003-09-12 | 2003-09-12 | 異方性フィルムの製造方法 |
CN200480018274.8A CN1813205A (zh) | 2003-09-12 | 2004-09-10 | 制备各向异性膜的方法 |
PCT/JP2004/013239 WO2005026795A1 (ja) | 2003-09-12 | 2004-09-10 | 異方性フィルムの製造方法 |
EP04787879A EP1666929A4 (en) | 2003-09-12 | 2004-09-10 | METHOD FOR PRODUCING AN ANISOTROPIC FILM |
KR1020057022161A KR100742149B1 (ko) | 2003-09-12 | 2004-09-10 | 이방성 필름의 제조 방법 |
US10/557,837 US20060210709A1 (en) | 2003-09-12 | 2004-09-10 | Method for producing anisotropic film |
US12/425,172 US20090252890A1 (en) | 2003-09-12 | 2009-04-16 | Method for producing anisotropic film |
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JP2003321676A JP4341904B2 (ja) | 2003-09-12 | 2003-09-12 | 異方性フィルムの製造方法 |
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US (2) | US20060210709A1 (ja) |
EP (1) | EP1666929A4 (ja) |
JP (1) | JP4341904B2 (ja) |
KR (1) | KR100742149B1 (ja) |
CN (1) | CN1813205A (ja) |
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US20090079913A1 (en) * | 2005-07-15 | 2009-03-26 | Fujifilm Corporation | Optically anisotropic film, polarizing film, producing process thereof, and application use thereof |
JP2008003514A (ja) * | 2006-06-26 | 2008-01-10 | Keiwa Inc | 光学ユニット及び液晶表示モジュール |
KR100867924B1 (ko) * | 2007-03-07 | 2008-11-10 | 삼성에스디아이 주식회사 | 도너기판, 그의 제조방법 및 유기전계발광소자 |
TW200839320A (en) * | 2007-03-28 | 2008-10-01 | Far Eastern Textile Ltd | Polarizer and its manufacturing method, and liquid crystal display panel |
US9091816B2 (en) * | 2010-12-07 | 2015-07-28 | Lg Display Co., Ltd. | Method of fabricating patterned retarder |
JP6667983B2 (ja) * | 2014-05-30 | 2020-03-18 | 富士フイルム株式会社 | 積層体およびその製造方法、偏光板、液晶表示装置、有機el表示装置 |
CN109789835B (zh) | 2016-05-17 | 2022-09-02 | Smr专利责任有限公司 | 背板单元、用于制造这种背板单元的方法以及具有这种背板单元的用于机动车辆的后视装置 |
CN113614815B (zh) | 2019-02-08 | 2024-05-14 | 东洋纺株式会社 | 折叠型显示器和移动终端设备 |
WO2020162119A1 (ja) | 2019-02-08 | 2020-08-13 | 東洋紡株式会社 | ポリエステルフィルムとその用途 |
CN109971017B (zh) * | 2019-03-21 | 2020-08-04 | 深圳市华星光电技术有限公司 | 抗反射膜及其制作方法、显示面板 |
US11939499B2 (en) | 2019-05-28 | 2024-03-26 | Toyobo Co., Ltd. | Multilayer film and use of same |
EP3978554A4 (en) | 2019-05-28 | 2023-06-21 | Toyobo Co., Ltd. | POLYESTER FILM, LAMINATED FILM AND USE THEREOF |
US11926720B2 (en) | 2019-05-28 | 2024-03-12 | Toyobo Co., Ltd. | Polyester film and application therefor |
JP2020052411A (ja) * | 2019-12-04 | 2020-04-02 | 富士フイルム株式会社 | 積層体およびその製造方法、偏光板、液晶表示装置、有機el表示装置 |
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US4437731A (en) * | 1980-06-18 | 1984-03-20 | Hitachi, Ltd. | Liquid crystal display device |
JP3453836B2 (ja) * | 1994-02-18 | 2003-10-06 | 株式会社デンソー | ホログラムの製造方法 |
US5700860A (en) * | 1995-03-27 | 1997-12-23 | Japan Synthetic Rubber Co., Ltd. | Liquid crystal orienting agent |
EP0753785B1 (de) * | 1995-07-11 | 2016-05-11 | Rolic AG | Übertragung von Polarisationsmustern auf polarisationsempfindliche Photoschichten |
JPH10300927A (ja) * | 1997-04-22 | 1998-11-13 | Sekisui Chem Co Ltd | 楕円偏光板の製造方法 |
CN1399729A (zh) * | 1999-09-03 | 2003-02-26 | 肯特州大学 | 通过同时进行对准排列和相分离制造对准排列的液晶单元/膜 |
EP1170353B1 (en) * | 2000-07-06 | 2005-11-02 | Fuji Photo Film Co., Ltd. | Liquid crystal composition comprising liquid crystal molecules and aligment promoter |
TWI243264B (en) * | 2000-12-04 | 2005-11-11 | Fuji Photo Film Co Ltd | Optical compensating sheet and process for producing it, polarizing plate and liquid crystal display device |
JP2002202408A (ja) * | 2000-12-28 | 2002-07-19 | Hayashi Telempu Co Ltd | 位相差フィルムおよびその製造方法 |
JP2002202406A (ja) * | 2000-12-28 | 2002-07-19 | Hayashi Telempu Co Ltd | 位相差フィルムおよびその製造方法 |
KR100451442B1 (ko) * | 2001-11-12 | 2004-10-06 | 엘지전선 주식회사 | 트리아진 고리를 주쇄로 하는 폴리유레아계 감광성 고분자액정 배향제와 이를 이용한 액정 배향막 |
US7046443B2 (en) * | 2002-07-24 | 2006-05-16 | Nitto Denko Corporation | Anisotropic light scattering element, anisotropic light scattering polarizing plate using the same, and image display device using the same |
-
2003
- 2003-09-12 JP JP2003321676A patent/JP4341904B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-10 WO PCT/JP2004/013239 patent/WO2005026795A1/ja active Application Filing
- 2004-09-10 EP EP04787879A patent/EP1666929A4/en not_active Withdrawn
- 2004-09-10 CN CN200480018274.8A patent/CN1813205A/zh active Pending
- 2004-09-10 US US10/557,837 patent/US20060210709A1/en not_active Abandoned
- 2004-09-10 KR KR1020057022161A patent/KR100742149B1/ko not_active IP Right Cessation
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2009
- 2009-04-16 US US12/425,172 patent/US20090252890A1/en not_active Abandoned
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US20060210709A1 (en) | 2006-09-21 |
WO2005026795A1 (ja) | 2005-03-24 |
KR20060014413A (ko) | 2006-02-15 |
EP1666929A4 (en) | 2007-03-28 |
CN1813205A (zh) | 2006-08-02 |
US20090252890A1 (en) | 2009-10-08 |
EP1666929A1 (en) | 2006-06-07 |
JP2005091481A (ja) | 2005-04-07 |
KR100742149B1 (ko) | 2007-07-24 |
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