DE69324042T2 - Reflektive flüssigkeitskristallanzeige für overhead-projektions system - Google Patents

Reflektive flüssigkeitskristallanzeige für overhead-projektions system

Info

Publication number
DE69324042T2
DE69324042T2 DE69324042T DE69324042T DE69324042T2 DE 69324042 T2 DE69324042 T2 DE 69324042T2 DE 69324042 T DE69324042 T DE 69324042T DE 69324042 T DE69324042 T DE 69324042T DE 69324042 T2 DE69324042 T2 DE 69324042T2
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
DE69324042D1 (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
Publication of DE69324042D1 publication Critical patent/DE69324042D1/de
Application granted granted Critical
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
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 DE69324042D1 (de) 1999-04-22
DE69324042T2 true 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)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6483612B2 (en) 1998-04-15 2002-11-19 Duke University Projection screen apparatus including holographic optical element
US20030206342A1 (en) * 1993-05-12 2003-11-06 Bright View Technologies, Inc. Micro-lens array based light transmission screen
US6788460B2 (en) 1998-04-15 2004-09-07 Duke University Projection screen apparatus
US5946431A (en) * 1993-07-30 1999-08-31 Molecular Dynamics Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces
US5463482A (en) * 1993-10-18 1995-10-31 Raychem Corporation Liquid crystal composite with droplets of plural chiral nematic materials with different reflection bands
US5828488A (en) 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
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
US6096375A (en) * 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
WO1995017303A1 (en) 1993-12-21 1995-06-29 Minnesota Mining And Manufacturing Company Multilayered optical film
TW269010B (de) * 1994-04-04 1996-01-21 Projectavision Inc
DE9411145U1 (de) * 1994-07-09 1994-09-15 Procent Patent Verwaltung Realbild-Auflichtprojektor
DE69532771T2 (de) * 1994-09-27 2004-09-30 Minnesota Mining And Mfg. Co., St. Paul Folie zur Luminanzsteuerung
KR100394283B1 (ko) * 1994-12-22 2003-11-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 오버헤드프로젝터를갖는프리젠테이션시스템
US5751388A (en) * 1995-04-07 1998-05-12 Honeywell Inc. High efficiency polarized display
EP0855043B1 (de) * 1995-06-26 2003-02-05 Minnesota Mining And Manufacturing Company Diffus reflektierende mehrschicht-polarisatoren und spiegel
AU706253B2 (en) * 1995-06-26 1999-06-10 Minnesota Mining And Manufacturing Company Transflective displays with reflective polarizing transflector
US6088067A (en) * 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
US5686979A (en) * 1995-06-26 1997-11-11 Minnesota Mining And Manufacturing Company Optical panel capable of switching between reflective and transmissive states
EP0832392B1 (de) * 1995-06-26 2003-08-13 Minnesota Mining And Manufacturing Company Hintergrundbeleuchtungsvorrichtung mit mehrschichtfilmreflektor
EP0843953B1 (de) * 1995-08-11 2001-10-17 Minnesota Mining And Manufacturing Company Elektrolumineszenzlampe mit optischen mehrschichtfilm
WO1997011404A1 (en) * 1995-09-22 1997-03-27 Philips Electronics N.V. Flat-panel picture display device
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
BR9806101A (pt) * 1997-06-30 1999-08-31 Citizen Watch Co Ltda Relógio.
JP3204512B2 (ja) * 1997-07-14 2001-09-04 シチズン時計株式会社 液晶表示装置
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
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
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
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
US6172816B1 (en) 1998-10-23 2001-01-09 Duke University Optical component adjustment for mitigating tolerance sensitivities
US6185041B1 (en) 1998-10-23 2001-02-06 Duke University Projection lens and system
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
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
US6511186B1 (en) 1999-07-09 2003-01-28 Sarnoff Corporation Focus and aim device and method for image projection
US6447120B2 (en) 1999-07-28 2002-09-10 Moxtex 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
US6234634B1 (en) 1999-07-28 2001-05-22 Moxtek 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
WO2002001285A1 (en) * 2000-06-26 2002-01-03 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
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
US7165959B2 (en) * 2003-09-09 2007-01-23 3M Innovative Properties Company Apparatus and method for producing two-sided patterned webs in registration
GB2407392A (en) * 2003-10-23 2005-04-27 Sharp Kk Projection adapter for a display
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
US7961393B2 (en) 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
KR101312140B1 (ko) * 2005-03-09 2013-09-26 쓰리엠 이노베이티브 프로퍼티즈 컴파니 미세복제품 및 그 제조 방법
BRPI0609284A2 (pt) * 2005-03-09 2010-09-08 3M Innovative Properties Co artigo microrreplicado, método de produzir um artigo microrreplicado, e, monitor óptico
US7767273B2 (en) * 2005-03-09 2010-08-03 3M Innovative Properties Company Apparatus and method for producing two-sided patterned web in registration
WO2006098939A1 (en) * 2005-03-09 2006-09-21 3M Innovative Properties Company Apparatus and method for making microreplicated article
CN101171090B (zh) * 2005-03-09 2010-06-16 3M创新有限公司 制造微复制物品的设备和方法
KR101196035B1 (ko) * 2005-03-09 2012-10-30 쓰리엠 이노베이티브 프로퍼티즈 컴파니 흠결-감소 표면을 갖는 미세복제된 물품
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
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire 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
US9348076B2 (en) 2013-10-24 2016-05-24 Moxtek, Inc. Polarizer with variable inter-wire distance
KR20170056016A (ko) 2015-09-03 2017-05-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 광학 필름 및 적층물의 제조 방법
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

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844650A (en) * 1972-05-22 1974-10-29 Minnesota Mining & Mfg Projector
US4017156A (en) * 1974-02-28 1977-04-12 Matsushita Electric Industrial Co., Ltd. Electro-optical display device
US4525413A (en) * 1981-03-02 1985-06-25 Polaroid Corporation Optical device including birefringent polymer
US4613207A (en) * 1984-05-08 1986-09-23 Manchester R & D Partnership Liquid crystal projector and method
JPS60189730A (ja) * 1984-03-09 1985-09-27 Sharp Corp 液晶表示装置
JPS62245215A (ja) * 1986-04-18 1987-10-26 Fujitsu Ltd 投写表示素子の構造
US4818074A (en) * 1986-09-03 1989-04-04 Ricoh Company, Ltd. Projection device for irradiating a light to a display device and optically magnifying and projecting a reflection light therefrom
DE3633332A1 (de) * 1986-10-01 1988-04-14 Kodak Ag Optische einrichtung zur projektion von fluessigkristallanzeigen
US4763993A (en) * 1987-04-30 1988-08-16 N-View Corporation Liquid crystal display for projection systems
US4928123A (en) * 1987-06-16 1990-05-22 Sharp Kabushiki Kaisha Projection type liquid crystal display device
JP2585782B2 (ja) * 1989-01-23 1997-02-26 日本航空電子工業 株式会社 反射型液晶オーバーヘッドプロジェクタ
US5486949A (en) * 1989-06-20 1996-01-23 The Dow Chemical Company Birefringent interference polarizer
JPH04207774A (ja) * 1990-11-30 1992-07-29 Matsushita Electric Ind Co Ltd 液晶投写型テレビおよびそれを用いた液晶投写型カラーテレビ
US5206673A (en) * 1991-02-22 1993-04-27 Japan Aviation Electronics Industry Limited Reflection type overhead projector

Also Published As

Publication number Publication date
US5333072A (en) 1994-07-26
DE69324042D1 (de) 1999-04-22
JPH08507872A (ja) 1996-08-20
KR960700460A (ko) 1996-01-20
EP0677180B1 (de) 1999-03-17
EP0677180A1 (de) 1995-10-18
WO1994016358A1 (en) 1994-07-21

Similar Documents

Publication Publication Date Title
DE69324042T2 (de) Reflektive flüssigkeitskristallanzeige für overhead-projektions system
DE69224874T2 (de) Hintergrundbeleuchtungssystem für elektrooptische Anzeigen
DE69325555D1 (de) Elektrooptisches fluessigkristallsystem
DE69523125D1 (de) Flüssigkristall-projektionsanzeigesysteme
DE69331162T2 (de) Reflektive Flüssigkristallanzeigevorrichtung
DE69724115D1 (de) Projektionslinse für flüssigkristallanzeige
DE69318729D1 (de) Cholesterischer polarisator für flüssigkristalldisplay und overhead projektor
DE69419653T2 (de) Optischer Kompensator für Flüssigkristallanzeige
DE69318452T2 (de) Projektionsflüssigkristallanzeigevorrichtung
DE69313894D1 (de) Rückbeleuchtung für eine Flüssigkristallanzeige
DE69216656T2 (de) Flüssigkristallanzeigesystem
DE69228929T2 (de) Flüssigkristallanzeige
DE69320256T2 (de) Steuersystem für eine Flüssigkristallanzeigevorrichtung
DE69513271T2 (de) Flüssigkristall-farbanzeigeprojektionssystem
DE69332104D1 (de) Hintergrundbeleuchtungssystem für flüssigkristallanzeige
DE69311950T2 (de) Flüssigkristallanzeige
DE69215991T2 (de) Flüssigkristall-Anzeigesystem
DE69318748D1 (de) Flüssigkristallanzeige
KR950701089A (ko) 액정 디스플레이 패널용 오버헤드 영사기(overhead projector for lcd panel)
DE69332622T2 (de) Ansteuerverfahren für flüssigkristallanzeige
DE69318434T2 (de) Flüssigkristallanzeige
KR940023233U (ko) 반사형 액정 표시장치
KR940018531U (ko) 액정프로젝터의 광학계
KR940016912U (ko) 반사형 액정 프로젝터
KR940025341U (ko) 오버헤드 프로젝트용 칼라 액정표시소자

Legal Events

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