KR20020033572A - 편광판 - Google Patents
편광판 Download PDFInfo
- Publication number
- KR20020033572A KR20020033572A KR1020010067150A KR20010067150A KR20020033572A KR 20020033572 A KR20020033572 A KR 20020033572A KR 1020010067150 A KR1020010067150 A KR 1020010067150A KR 20010067150 A KR20010067150 A KR 20010067150A KR 20020033572 A KR20020033572 A KR 20020033572A
- Authority
- KR
- South Korea
- Prior art keywords
- film
- retardation
- retardation film
- polarizing plate
- light
- Prior art date
Links
Classifications
-
- 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
- G02B5/3083—Birefringent or phase retarding 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
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)
- Liquid Crystal (AREA)
Abstract
Description
Claims (4)
- 편광소자; 및 파장 550㎚의 광에 대한 면내 위상차가 190 내지 320㎚인 2개의 위상차 필름층으로 구성된 하나 이상의 투명 보호 필름을 포함하는 편광판으로서,각각의 위상차 필름의 지상축(遲相軸)이 편광소자의 흡수축과 평행이 되도록 상기 투명 보호 필름이 상기 편광소자의 양면중 한면에 결합되고, 또한 상기 2개의 위상차 필름이 하기 수학식 1 및 수학식 2의 조건에서 0.8 내지 0.95의 Nz를 갖는 위상차 필름과 0.55 내지 0.7의 Nz를 갖는 위상차 필름의 조합으로 구성되는 편광판:수학식 1nx>ny수학식 2Nz=(nx-nz)/(nx-ny)상기 식에서,nx 및 ny는 각각 상기 위상차 필름의 면내 굴절율이고;nz는 상기 위상차 필름의 두께 방향의 굴절율이다.
- 제 l 항에 있어서,0.8 내지 0.95의 Nz를 갖는 위상차 필름이 편광소자 측에 배치된 편광판.
- 제 1 항에 있어서,편광소자가 흡수 2색성인 편광판.
- 제 3 항에 있어서,상기 흡수 2색성 편광소자가 요오드 또는 2색성 염료를 함유하는 폴리비닐알콜 화합물의 일축 연신 필름으로 이루어지는 편광판.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2000-00330069 | 2000-10-30 | ||
JP2000330069A JP4566384B2 (ja) | 2000-10-30 | 2000-10-30 | 偏光板 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020033572A true KR20020033572A (ko) | 2002-05-07 |
KR100754572B1 KR100754572B1 (ko) | 2007-09-05 |
Family
ID=18806647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010067150A KR100754572B1 (ko) | 2000-10-30 | 2001-10-30 | 편광판 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6667787B2 (ko) |
EP (1) | EP1202082B1 (ko) |
JP (1) | JP4566384B2 (ko) |
KR (1) | KR100754572B1 (ko) |
TW (1) | TW562955B (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7755262B2 (en) | 2004-05-17 | 2010-07-13 | Lg Display Co., Ltd. | Organic EL display |
KR101257132B1 (ko) * | 2004-01-14 | 2013-04-22 | 트랜지션즈 옵티칼 인코포레이티드 | 편광 장치 및 그의 제조 방법 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4566384B2 (ja) * | 2000-10-30 | 2010-10-20 | 日東電工株式会社 | 偏光板 |
JP4002433B2 (ja) * | 2001-12-27 | 2007-10-31 | Nec液晶テクノロジー株式会社 | アクティブマトリクス型液晶表示装置 |
EP1496376B1 (en) * | 2002-03-25 | 2011-06-15 | Zeon Corporation | Optical film and process for producing the same |
TW200500746A (en) * | 2002-12-19 | 2005-01-01 | Nitto Denko Corp | Birefringent optical film, elliptically polarizing plate using the same, and liquid crystal display using the same |
US7893386B2 (en) * | 2003-11-14 | 2011-02-22 | Hewlett-Packard Development Company, L.P. | Laser micromachining and methods of same |
JP4410055B2 (ja) * | 2004-08-02 | 2010-02-03 | 日東電工株式会社 | 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 |
KR101157976B1 (ko) * | 2005-04-22 | 2012-06-25 | 엘지디스플레이 주식회사 | 액정표시모듈 |
WO2006137427A1 (ja) * | 2005-06-21 | 2006-12-28 | Zeon Corporation | 偏光板用保護フィルム |
KR20090101073A (ko) * | 2006-12-21 | 2009-09-24 | 닛토덴코 가부시키가이샤 | 편광자의 제조 방법, 편광자, 편광판 및 화상 표시 장치 |
JP4936487B2 (ja) * | 2010-07-15 | 2012-05-23 | 日東電工株式会社 | 偏光板 |
JP7039195B2 (ja) * | 2016-07-08 | 2022-03-22 | 日東電工株式会社 | 光学部材及び液晶表示装置 |
Family Cites Families (25)
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US2441049A (en) * | 1944-09-29 | 1948-05-04 | Polaroid Corp | Composite achromatic wave plates comprising superimposed sheets of differently birefringent, molecularly oriented, transparent, solid, organic plastic material |
AU517329B2 (en) | 1977-06-29 | 1981-07-23 | Polaroid Corp. | Iodine stained light polarizer |
US4984874A (en) * | 1988-07-08 | 1991-01-15 | Kabushiki Kaisha Toshiba | Liquid crystal display device having retardation films |
DE69020855T2 (de) * | 1989-03-28 | 1996-03-28 | Asahi Glass Co Ltd | Flüssigkristallanzeigevorrichtung. |
JP2939757B2 (ja) | 1989-11-24 | 1999-08-25 | コニカ株式会社 | 画像読取装置 |
JPH03165168A (ja) | 1989-11-24 | 1991-07-17 | Tamura Electric Works Ltd | 公衆電話機 |
EP0482620B1 (en) * | 1990-10-24 | 1997-03-05 | Nitto Denko Corporation | Birefringent film, process for producing the same, retardation film, elliptically polarizing plate, and liquid crystal display |
JP2818983B2 (ja) * | 1990-10-24 | 1998-10-30 | 日東電工株式会社 | 複屈折性フィルムの製造方法 |
JP3165168B2 (ja) | 1991-04-02 | 2001-05-14 | 日東電工株式会社 | 偏光板及び液晶表示装置 |
JP3165178B2 (ja) | 1991-06-19 | 2001-05-14 | 日東電工株式会社 | 偏光板及び液晶表示装置 |
US5227903A (en) * | 1991-09-20 | 1993-07-13 | Casio Computer Co., Ltd. | Liquid crystal display device with at least one biaxial retardation film having nx >nz >ny |
US5440413A (en) | 1991-09-30 | 1995-08-08 | Casio Computer Co., Ltd. | Liquid crystal display device with 2 adjacent biaxial retardation plates having Ny <Nz <Nx |
US5594568A (en) * | 1993-12-15 | 1997-01-14 | Ois Optical Imaging Systems, Inc. | LCD with a pair of retardation films on one side of normally white liquid crystal layer |
US5579139A (en) | 1995-06-07 | 1996-11-26 | Ois Optical Imaging Systems, Inc. | LCD with reduced canopy reflection having a retarder of 220-320 nm retardation outside a polarizer |
EP0989441B1 (en) * | 1997-05-09 | 2008-07-23 | Sharp Kabushiki Kaisha | Laminated phase plate and liquid crystal display comprising the plate |
JPH11149015A (ja) * | 1997-11-14 | 1999-06-02 | Nitto Denko Corp | 積層波長板、円偏光板及び液晶表示装置 |
JP3580124B2 (ja) | 1998-03-05 | 2004-10-20 | 日東電工株式会社 | 光学素子、照明装置及び液晶表示装置 |
DE69932826T2 (de) | 1998-06-18 | 2006-12-14 | Kaneka Corp. | Transparentes touch panel und flüssigkristalldisplay mit einem transparenten touch panel |
JP2000098385A (ja) | 1998-09-25 | 2000-04-07 | Alps Electric Co Ltd | 反射型液晶表示装置 |
JP2001013500A (ja) | 1999-06-30 | 2001-01-19 | Matsushita Electric Ind Co Ltd | 反射型液晶表示素子 |
JP4032568B2 (ja) | 1999-06-30 | 2008-01-16 | カシオ計算機株式会社 | 液晶表示装置 |
JP2001091745A (ja) | 1999-09-22 | 2001-04-06 | Nitto Denko Corp | 複合位相差板、光学補償偏光板及び液晶表示装置 |
JP4566385B2 (ja) | 2000-10-30 | 2010-10-20 | 日東電工株式会社 | 偏光板 |
JP4566384B2 (ja) * | 2000-10-30 | 2010-10-20 | 日東電工株式会社 | 偏光板 |
JP2002148434A (ja) | 2000-11-08 | 2002-05-22 | Nitto Denko Corp | 偏光板 |
-
2000
- 2000-10-30 JP JP2000330069A patent/JP4566384B2/ja not_active Expired - Fee Related
-
2001
- 2001-10-29 EP EP01125809A patent/EP1202082B1/en not_active Expired - Lifetime
- 2001-10-30 US US09/984,514 patent/US6667787B2/en not_active Expired - Lifetime
- 2001-10-30 KR KR1020010067150A patent/KR100754572B1/ko active IP Right Grant
- 2001-10-30 TW TW090126857A patent/TW562955B/zh not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101257132B1 (ko) * | 2004-01-14 | 2013-04-22 | 트랜지션즈 옵티칼 인코포레이티드 | 편광 장치 및 그의 제조 방법 |
US7755262B2 (en) | 2004-05-17 | 2010-07-13 | Lg Display Co., Ltd. | Organic EL display |
Also Published As
Publication number | Publication date |
---|---|
TW562955B (en) | 2003-11-21 |
EP1202082A1 (en) | 2002-05-02 |
KR100754572B1 (ko) | 2007-09-05 |
US6667787B2 (en) | 2003-12-23 |
JP2002131546A (ja) | 2002-05-09 |
US20020080489A1 (en) | 2002-06-27 |
EP1202082B1 (en) | 2004-08-18 |
JP4566384B2 (ja) | 2010-10-20 |
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