DE69324042D1 - Reflektive flüssigkeitskristallanzeige für overhead-projektions system - Google Patents

Reflektive flüssigkeitskristallanzeige für overhead-projektions system

Info

Publication number
DE69324042D1
DE69324042D1 DE69324042T DE69324042T DE69324042D1 DE 69324042 D1 DE69324042 D1 DE 69324042D1 DE 69324042 T DE69324042 T DE 69324042T DE 69324042 T DE69324042 T DE 69324042T DE 69324042 D1 DE69324042 D1 DE 69324042D1
Authority
DE
Germany
Prior art keywords
liquid crystal
crystal display
projection system
reflective liquid
overhead projection
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.)
Expired - Fee Related
Application number
DE69324042T
Other languages
English (en)
Other versions
DE69324042T2 (de
Inventor
Stephen Willett
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69324042D1 publication Critical patent/DE69324042D1/de
Publication of DE69324042T2 publication Critical patent/DE69324042T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • 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
    • G02F1/133536—Reflective polarizers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Overhead Projectors And Projection Screens (AREA)
DE69324042T 1992-12-31 1993-09-21 Reflektive flüssigkeitskristallanzeige für overhead-projektions system Expired - Fee Related DE69324042T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/999,089 US5333072A (en) 1992-12-31 1992-12-31 Reflective liquid crystal display overhead projection system using a reflective linear polarizer and a fresnel lens
PCT/US1993/008905 WO1994016358A1 (en) 1992-12-31 1993-09-21 Reflective liquid crystal display overhead projection system

Publications (2)

Publication Number Publication Date
DE69324042D1 true DE69324042D1 (de) 1999-04-22
DE69324042T2 DE69324042T2 (de) 1999-10-28

Family

ID=25545886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69324042T Expired - Fee Related DE69324042T2 (de) 1992-12-31 1993-09-21 Reflektive flüssigkeitskristallanzeige für overhead-projektions system

Country Status (6)

Country Link
US (1) US5333072A (de)
EP (1) EP0677180B1 (de)
JP (1) JPH08507872A (de)
KR (1) KR960700460A (de)
DE (1) DE69324042T2 (de)
WO (1) WO1994016358A1 (de)

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US6788460B2 (en) * 1998-04-15 2004-09-07 Duke University Projection screen apparatus
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US5463482A (en) * 1993-10-18 1995-10-31 Raychem Corporation Liquid crystal composite with droplets of plural chiral nematic materials with different reflection bands
US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
US6025897A (en) * 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
CA2177714C (en) 1993-12-21 2005-08-09 Andrew J. Ouderkirk Multilayered optical film
US5828488A (en) 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US6096375A (en) * 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
TW269010B (de) * 1994-04-04 1996-01-21 Projectavision Inc
DE9411145U1 (de) * 1994-07-09 1994-09-15 Procent Patent Verwaltung Realbild-Auflichtprojektor
KR100451602B1 (ko) * 1994-09-27 2004-12-17 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 휘도제어필름
JPH09509759A (ja) * 1994-12-22 1997-09-30 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ オーバーヘッドプロジェクター付きプレゼンテーションシステム
US5751388A (en) * 1995-04-07 1998-05-12 Honeywell Inc. High efficiency polarized display
US5686979A (en) * 1995-06-26 1997-11-11 Minnesota Mining And Manufacturing Company Optical panel capable of switching between reflective and transmissive states
JPH11508376A (ja) * 1995-06-26 1999-07-21 ミネソタ マイニング アンド マニュファクチャリング カンパニー 拡散反射多層偏光子および拡散反射多層反射鏡
AU716525B2 (en) * 1995-06-26 2000-02-24 Minnesota Mining And Manufacturing Company Backlight system with multilayer optical film reflector
EP0871923A1 (de) 1995-06-26 1998-10-21 Minnesota Mining And Manufacturing Company Transflektive anzeige mit reflektierendem polarisierendem transflektor
US6088067A (en) * 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
JPH11510948A (ja) * 1995-08-11 1999-09-21 ミネソタ マイニング アンド マニュファクチャリング カンパニー 多層光学フィルムを用いたエレクトロルミネッセンスランプ
DE69632679T2 (de) * 1995-09-22 2005-06-16 Koninklijke Philips Electronics N.V. Flachbildschirmanzeige
US5608552A (en) * 1995-12-26 1997-03-04 Hughes Electronics Liquid crystal display having an off-axis full-color holographic filter
US6390626B2 (en) 1996-10-17 2002-05-21 Duke University Image projection system engine assembly
US5963276A (en) * 1997-01-09 1999-10-05 Smartlight Ltd. Back projection transparency viewer with overlapping pixels
JPH10293212A (ja) * 1997-02-18 1998-11-04 Dainippon Printing Co Ltd バックライト及び液晶表示装置
JP3122143B2 (ja) * 1997-06-30 2001-01-09 シチズン時計株式会社 時 計
CN1115590C (zh) * 1997-07-14 2003-07-23 时至准钟表股份有限公司 液晶显示装置
US6204901B1 (en) 1997-07-31 2001-03-20 Duke University Liquid crystal color shutters that include reflective polarizers that pass color components of light of a first polarization and that reflect a majority of color components of light of a second polarization
US6816306B2 (en) * 1998-04-15 2004-11-09 Bright View Technologies Inc. Micro-lens array based light transmitting screen with high resolution and low imaging artifacts
US6967779B2 (en) * 1998-04-15 2005-11-22 Bright View Technologies, Inc. Micro-lens array with precisely aligned aperture mask and methods of producing same
US6829087B2 (en) * 1998-04-15 2004-12-07 Bright View Technologies, Inc. Micro-lens array based light transmitting screen with tunable gain
US6108131A (en) 1998-05-14 2000-08-22 Moxtek Polarizer apparatus for producing a generally polarized beam of light
US6208463B1 (en) 1998-05-14 2001-03-27 Moxtek Polarizer apparatus for producing a generally polarized beam of light
US6160663A (en) * 1998-10-01 2000-12-12 3M Innovative Properties Company Film confined to a frame having relative anisotropic expansion characteristics
US6185041B1 (en) 1998-10-23 2001-02-06 Duke University Projection lens and system
US6172816B1 (en) 1998-10-23 2001-01-09 Duke University Optical component adjustment for mitigating tolerance sensitivities
US6515785B1 (en) * 1999-04-22 2003-02-04 3M Innovative Properties Company Optical devices using reflecting polarizing materials
US6122103A (en) * 1999-06-22 2000-09-19 Moxtech Broadband wire grid polarizer for the visible spectrum
US6288840B1 (en) 1999-06-22 2001-09-11 Moxtek Imbedded wire grid polarizer for the visible spectrum
US6873460B1 (en) 1999-07-09 2005-03-29 Sarnoff Corporation Retractable rear projection display
US6511186B1 (en) 1999-07-09 2003-01-28 Sarnoff Corporation Focus and aim device and method for image projection
US6561649B1 (en) 1999-07-09 2003-05-13 Sarnoff Corporation Compact rear projection system using birefringent optics
US6406150B1 (en) 1999-07-09 2002-06-18 Sarnoff Corporation Compact rear projections system
US6234634B1 (en) 1999-07-28 2001-05-22 Moxtek Image projection system with a polarizing beam splitter
US7306338B2 (en) 1999-07-28 2007-12-11 Moxtek, Inc Image projection system with a polarizing beam splitter
US6666556B2 (en) 1999-07-28 2003-12-23 Moxtek, Inc Image projection system with a polarizing beam splitter
US6447120B2 (en) 1999-07-28 2002-09-10 Moxtex Image projection system with a polarizing beam splitter
US6243199B1 (en) 1999-09-07 2001-06-05 Moxtek Broad band wire grid polarizing beam splitter for use in the visible wavelength region
US6275340B1 (en) 2000-01-21 2001-08-14 Rayford K. Brown Anesthetic alleviation by sensory stimulation
SE516279C2 (sv) * 2000-04-05 2001-12-10 Wanja Bellander Overheadprojektor
GB2361573A (en) * 2000-04-20 2001-10-24 Bae Sys Electronics Ltd Illuminator for reflective flat panel display
US6833891B2 (en) * 2000-06-26 2004-12-21 Reveo, Inc. Reflective liquid crystal display using cholesteric polymers
US7375887B2 (en) 2001-03-27 2008-05-20 Moxtek, Inc. Method and apparatus for correcting a visible light beam using a wire-grid polarizer
US6909473B2 (en) 2002-01-07 2005-06-21 Eastman Kodak Company Display apparatus and method
US6785050B2 (en) 2002-05-09 2004-08-31 Moxtek, Inc. Corrosion resistant wire-grid polarizer and method of fabrication
US7113335B2 (en) * 2002-12-30 2006-09-26 Sales Tasso R Grid polarizer with suppressed reflectivity
JP4233431B2 (ja) * 2003-04-01 2009-03-04 日東電工株式会社 光学素子、偏光素子、照明装置および液晶表示装置
US6918671B2 (en) * 2003-07-11 2005-07-19 Hewlett-Packard Development Company, L.P. Projector and method
US7165959B2 (en) * 2003-09-09 2007-01-23 3M Innovative Properties Company Apparatus and method for producing two-sided patterned webs in registration
US7804649B2 (en) * 2003-09-09 2010-09-28 3M Innovative Properties Company Microreplicated achromatic lens
US20050231809A1 (en) * 2003-09-09 2005-10-20 Carlson Daniel H Microreplicated polarizing article
US7224529B2 (en) * 2003-09-09 2007-05-29 3M Innovative Properties Company Microreplicated article
GB2407392A (en) * 2003-10-23 2005-04-27 Sharp Kk Projection adapter for a display
US7961393B2 (en) 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
US7800823B2 (en) 2004-12-06 2010-09-21 Moxtek, Inc. Polarization device to polarize and further control light
US7570424B2 (en) 2004-12-06 2009-08-04 Moxtek, Inc. Multilayer wire-grid polarizer
ATE496706T1 (de) * 2005-03-09 2011-02-15 3M Innovative Properties Co Vorrichtung und verfahren zur herstellung eines mikroreplizierten gegenstandes
EP1874524B1 (de) * 2005-03-09 2009-03-11 3M Innovative Properties Company Vorrichtung und verfahren zur herstellung eines mikroreplizierten artikels
BRPI0608406A2 (pt) * 2005-03-09 2009-12-29 3M Innovative Properties Co conjunto, aparelho, método para colocar padrão em uma folha contìnua opaca e rolo com padrão
JP2008536161A (ja) * 2005-03-09 2008-09-04 スリーエム イノベイティブ プロパティズ カンパニー モアレ低減表面を有する微細複製物品
EP1856566A1 (de) * 2005-03-09 2007-11-21 3M Innovative Properties Company Mikroreplizierter gegenstand mit fehlerreduzierender oberfläche
CN101137449B (zh) * 2005-03-09 2012-08-29 3M创新有限公司 微复制物品及其生产方法
US7540616B2 (en) * 2005-12-23 2009-06-02 3M Innovative Properties Company Polarized, multicolor LED-based illumination source
US8755113B2 (en) 2006-08-31 2014-06-17 Moxtek, Inc. Durable, inorganic, absorptive, ultra-violet, grid polarizer
TWI330295B (en) * 2007-04-23 2010-09-11 Coretronic Corp Projection apparatus
US7789515B2 (en) 2007-05-17 2010-09-07 Moxtek, Inc. Projection device with a folded optical path and wire-grid polarizer
US20090122261A1 (en) * 2007-11-09 2009-05-14 Insight Equity A.P.X., L.P. Reflective Polarized Lenses With High Transmission
US8467128B2 (en) 2008-11-19 2013-06-18 Shanghai Lexvu Opto Microelectronics Technology Co., Ltd. Polarizing cube and method of fabricating the same
US8248696B2 (en) 2009-06-25 2012-08-21 Moxtek, Inc. Nano fractal diffuser
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire grid polarizer
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8873144B2 (en) 2011-05-17 2014-10-28 Moxtek, Inc. Wire grid polarizer with multiple functionality sections
US8913320B2 (en) 2011-05-17 2014-12-16 Moxtek, Inc. Wire grid polarizer with bordered sections
US8922890B2 (en) 2012-03-21 2014-12-30 Moxtek, Inc. Polarizer edge rib modification
US9632223B2 (en) 2013-10-24 2017-04-25 Moxtek, Inc. Wire grid polarizer with side region
US9599761B1 (en) 2015-09-03 2017-03-21 3M Innovative Properties Company Thermoformed multilayer reflective polarizer
JP7027035B2 (ja) * 2016-11-15 2022-03-01 日東電工株式会社 光通信装置及び偏光板のセット

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Also Published As

Publication number Publication date
KR960700460A (ko) 1996-01-20
EP0677180A1 (de) 1995-10-18
US5333072A (en) 1994-07-26
DE69324042T2 (de) 1999-10-28
WO1994016358A1 (en) 1994-07-21
EP0677180B1 (de) 1999-03-17
JPH08507872A (ja) 1996-08-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee