CA2148156A1 - Lcd with a pair of retardation films on one side of liquid crystal layer - Google Patents

Lcd with a pair of retardation films on one side of liquid crystal layer

Info

Publication number
CA2148156A1
CA2148156A1 CA002148156A CA2148156A CA2148156A1 CA 2148156 A1 CA2148156 A1 CA 2148156A1 CA 002148156 A CA002148156 A CA 002148156A CA 2148156 A CA2148156 A CA 2148156A CA 2148156 A1 CA2148156 A1 CA 2148156A1
Authority
CA
Canada
Prior art keywords
liquid crystal
crystal layer
retardation films
pair
lcd
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.)
Granted
Application number
CA002148156A
Other languages
French (fr)
Other versions
CA2148156C (en
Inventor
Adiel Abileah
John Vanderploeg
Gang Xu
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.)
Guardian Industries Corp
Original Assignee
Adiel Abileah
John Vanderploeg
Gang Xu
Ois Optical Imaging Systems, Inc.
Guardian Industries Corp.
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 Adiel Abileah, John Vanderploeg, Gang Xu, Ois Optical Imaging Systems, Inc., Guardian Industries Corp. filed Critical Adiel Abileah
Publication of CA2148156A1 publication Critical patent/CA2148156A1/en
Application granted granted Critical
Publication of CA2148156C publication Critical patent/CA2148156C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/40—Materials having a particular birefringence, retardation
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/02—Number of plates being 2
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/08—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates with a particular optical axis orientation
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/12—Biaxial compensators
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/13—Positive birefingence
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/14—Negative birefingence

Abstract

A normally white twisted nematic liquid crystal display is disclosed having a pair of retardation films disposed between the liquid crystal layer and an adjacent polarizer, both retardation films being on one side of the liquid crystal layer. Both retardation films, if uniaxial, have retardation values of from about 100-200 nm. Optionally, biaxial retarders (n X > n Y > n Z) may be used, such biaxial retarders having retardation values from about d.cndot..DELTA. ZX = -100 to -200 nm, and d.cndot..DELTA. ZY = -10 to -100 nm. Accordingly, inversion is reduced and contrast rations are improved at large viewing angles.
CA002148156A 1994-04-29 1995-04-28 Lcd with a pair of retardation films on one side of liquid crystal layer Expired - Fee Related CA2148156C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/235,691 US5594568A (en) 1993-12-15 1994-04-29 LCD with a pair of retardation films on one side of normally white liquid crystal layer
US08/235,691 1994-04-29

Publications (2)

Publication Number Publication Date
CA2148156A1 true CA2148156A1 (en) 1995-10-30
CA2148156C CA2148156C (en) 2005-06-21

Family

ID=22886553

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002148156A Expired - Fee Related CA2148156C (en) 1994-04-29 1995-04-28 Lcd with a pair of retardation films on one side of liquid crystal layer

Country Status (5)

Country Link
US (1) US5594568A (en)
EP (2) EP1126313B1 (en)
AT (2) ATE286604T1 (en)
CA (1) CA2148156C (en)
DE (2) DE69533909T2 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5576861A (en) 1993-12-15 1996-11-19 Ois Optical Imaging Systems, Inc. Liquid crystal display having a retarder with 100-200nm retardation and having high contrast viewing zone centered in positive or negative vertical region
US5907378A (en) * 1993-12-15 1999-05-25 Ois Optical Imaging Systems, Inc. Normally white twisted nematic liquid crystal display including retardation films for improving viewing characteristics
US5657140A (en) * 1993-12-15 1997-08-12 Ois Optical Imaging Systems, Inc. Normally white twisted nematic LCD with positive and negative retarders
US6292242B1 (en) * 1993-12-15 2001-09-18 Ois Optical Imaging Systems, Inc. Normally white twisted nematic LCD with positive uniaxial and negative biaxial retarders
US5638200A (en) * 1995-02-03 1997-06-10 Ois Optical Imaging Systems, Inc. Liquid crystal display with tilted retardation film
US5796456A (en) * 1995-07-14 1998-08-18 Nec Corporation Liquid crystal display with optical negative uni-axial compensation layer
US5825445A (en) * 1995-10-06 1998-10-20 Kabushiki Kaisha Toshiba Electrooptical liquid crystal device
GB2318878A (en) * 1996-10-31 1998-05-06 Sharp Kk Reflective liquid crystal device
GB2321529A (en) * 1997-01-24 1998-07-29 Sharp Kk Broadband cholesteric optical device
DE19704717A1 (en) * 1997-02-07 1998-08-13 Bosch Gmbh Robert Multi-pixel liquid crystal display
US6980267B1 (en) * 1997-05-09 2005-12-27 Lg.Philips Lcd Co., Ltd. Reflective-type liquid crystal display device having two uniaxial compensation films of same type and method for making the same
US5990997A (en) * 1997-06-05 1999-11-23 Ois Optical Imaging Systems, Inc. NW twisted nematic LCD with negative tilted retarders for improved viewing characteristics
US6567143B1 (en) 1997-06-05 2003-05-20 Guardian Industries Corp. NW twisted nematic LCD with negative and tilted retarders on each side of liquid crystal cell to improve vertical contrast ratios
US5895106A (en) * 1997-06-13 1999-04-20 Ois Optical Imaging Systems, Inc. NW twisted nematic LCD with negative tilted retarders on one side of liquid crystal cell
US5982465A (en) * 1997-07-11 1999-11-09 Rockwell International Corporation Film compensated normally white super-twist nematic liquid crystal display that reduces chromaticity shifts over large temperature and viewing angle range
KR100357213B1 (en) * 1998-07-23 2002-10-18 엘지.필립스 엘시디 주식회사 Multi-domain liquid crystal display device
US6933991B2 (en) * 1999-01-22 2005-08-23 White Electronic Designs Corp. Super bright low reflectance liquid crystal display
US6181394B1 (en) 1999-01-22 2001-01-30 White Electronic Designs, Corp. Super bright low reflection liquid crystal display
US6266114B1 (en) 1999-07-14 2001-07-24 Rockwell Collins, Inc. Method and apparatus for compensating a liquid crystal display
US6639641B1 (en) * 1999-11-25 2003-10-28 Lg.Philips Lcd Co., Ltd. Multi-domain liquid crystal display device
US6359671B1 (en) 2000-02-23 2002-03-19 Planar Systems, Inc. High contrast liquid crystal device
TWI281560B (en) * 2000-09-15 2007-05-21 Au Optronics Corp Arrangement structure of liquid crystal display device
JP4566384B2 (en) * 2000-10-30 2010-10-20 日東電工株式会社 Polarizer
JP4566385B2 (en) * 2000-10-30 2010-10-20 日東電工株式会社 Polarizer
JP2002148433A (en) * 2000-11-08 2002-05-22 Nitto Denko Corp Polarizing plate
JP2002148434A (en) * 2000-11-08 2002-05-22 Nitto Denko Corp Polarizing plate
JP4216092B2 (en) * 2002-03-08 2009-01-28 株式会社半導体エネルギー研究所 Liquid crystal display
US6805924B1 (en) * 2003-04-14 2004-10-19 Eastman Kodak Company Compensation films for LCD
KR100900625B1 (en) * 2004-06-29 2009-06-02 샤프 가부시키가이샤 Phase difference film, polarization film, liquid crystal display unit, and method of designing phase difference film
KR100762028B1 (en) * 2005-10-14 2007-09-28 비오이 하이디스 테크놀로지 주식회사 Transflective type liquid crystal display having high transmission and wide viewing angle
EP1898252B1 (en) * 2006-09-05 2014-04-30 Tosoh Corporation Optical compensation film stack and stretched retardation film
JP2015055680A (en) * 2013-09-10 2015-03-23 大日本印刷株式会社 Polarizing plate, manufacturing method of polarizing plate, image display unit, manufacturing method of image display unit and light transmissivity improvement method of polarizing plate
DE102018213078B4 (en) * 2018-08-06 2020-06-18 Zf Friedrichshafen Ag Blackout device for an ADAS camera, control unit for an ADAS camera system, ADAS camera system and vehicle with an ADAS camera system
CN112285977B (en) * 2020-12-28 2021-03-02 北京瑞波科技术有限公司 Phase delay device, preparation method thereof and display equipment

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946954A (en) * 1972-09-11 1974-05-07
US4385806A (en) * 1978-06-08 1983-05-31 Fergason James L Liquid crystal display with improved angle of view and response times
JPS5545037A (en) * 1978-09-26 1980-03-29 Citizen Watch Co Ltd Liquid crystal display device
JPS5670524A (en) * 1979-11-13 1981-06-12 Sharp Corp Twisted nematic liquid crystal display unit
JPS60146590A (en) * 1984-01-10 1985-08-02 Citizen Watch Co Ltd Polychromatic image display device
US4632514A (en) * 1984-01-31 1986-12-30 Matsushita Electric Industrial Co., Ltd. Color liquid crystal display apparatus
US4652088A (en) * 1984-02-01 1987-03-24 Hitachi, Ltd. Liquid crystal display device
FR2564605B1 (en) * 1984-05-18 1987-12-24 Commissariat Energie Atomique LIQUID CRYSTAL CELL CAPABLE OF PRESENTING A HOMEOTROPIC STRUCTURE, WITH BIREFRINGENCE COMPENSATED FOR THIS STRUCTURE
JPS61137127A (en) * 1984-12-07 1986-06-24 Hitachi Ltd Liquid crystal display element
GB2171549B (en) * 1985-02-15 1988-05-18 Citizen Watch Co Ltd Liquid crystal display device
US4674841A (en) * 1985-03-08 1987-06-23 Tektronix, Inc. Color filter switchable among three state via a variable retarder
FR2595156B1 (en) * 1986-02-28 1988-04-29 Commissariat Energie Atomique LIQUID CRYSTAL CELL USING ELECTRICALLY CONTROLLED BIREFRINGENCE EFFECT AND METHODS OF MANUFACTURING THE CELL AND A UNIAXIC NEGATIVE ANISOTROPY ANISOTROPY MEDIUM FOR USE THEREIN
DE3752339T2 (en) * 1986-05-19 2002-05-08 Seiko Epson Corp Liquid crystal display device
FR2613566B1 (en) * 1987-04-06 1989-06-09 Commissariat Energie Atomique ACTIVE MATRIX SCREEN FOR COLOR DISPLAY OF TELEVISION IMAGES, CONTROL SYSTEM AND METHOD FOR MANUFACTURING SAID SCREEN
US4984873A (en) * 1987-08-31 1991-01-15 Ricoh Company, Ltd. Liquid crystal display device
JPH01120527A (en) * 1987-11-04 1989-05-12 Sharp Corp Liquid crystal display device
US4991941A (en) * 1988-06-13 1991-02-12 Kaiser Aerospace & Electronics Corporation Method and apparatus for multi-color display
JPH0769537B2 (en) * 1988-07-04 1995-07-31 スタンレー電気株式会社 Anisotropic compensation twisted nematic liquid crystal display
EP0350075A3 (en) * 1988-07-08 1990-09-05 Kabushiki Kaisha Toshiba Liquid crystal display device
JP2856401B2 (en) * 1988-07-08 1999-02-10 株式会社東芝 Liquid crystal display device
US4995704A (en) * 1988-07-08 1991-02-26 Kabushiki Kaisha Toshiba Liquid crystal display device
JPH0237319A (en) * 1988-07-27 1990-02-07 Toshiba Corp Liquid crystal display element
EP0367616A3 (en) * 1988-11-04 1991-04-24 Matsushita Electric Industrial Co., Ltd. Optical liquid crystal element
DE68923929T2 (en) * 1988-11-04 1996-03-07 Fuji Photo Film Co Ltd Liquid crystal display.
US5229039A (en) * 1988-11-11 1993-07-20 International Business Machines Corporation Color liquid crystal display and method of manufacture
JP2675158B2 (en) * 1988-12-07 1997-11-12 シャープ株式会社 Liquid crystal display
WO1990011546A1 (en) * 1989-03-28 1990-10-04 Asahi Glass Company Ltd. Liquid crystal display device
US5150237A (en) * 1989-05-15 1992-09-22 Ricoh Company, Ltd. Liquid crystal display element
JPH0313916A (en) * 1989-06-13 1991-01-22 Seiko Epson Corp Phase difference plate and liquid crystal electro-optical device using this plate
US5071997A (en) * 1989-07-20 1991-12-10 University Of Akron Polyimides comprising substituted benzidines
JP2651026B2 (en) * 1989-09-20 1997-09-10 株式会社日立製作所 Liquid crystal display
DE69016349T2 (en) * 1989-10-27 1995-06-29 Fuji Photo Film Co Ltd Liquid crystal display.
US5132826A (en) * 1989-10-30 1992-07-21 The University Of Colorado Foundation, Inc. Ferroelectric liquid crystal tunable filters and color generation
US5231521A (en) * 1989-10-30 1993-07-27 The University Of Colorado Foundation, Inc. Chiral smectic liquid crystal polarization interference filters
US5107356A (en) * 1989-12-26 1992-04-21 General Electric Company Liquid crystal display device with birefringent films
US5250214A (en) * 1990-04-09 1993-10-05 Ricoh Company, Ltd. Liquid crystal color display device provided with a color filter film and an optical phase plate comprising liquid crystal polymer
NL9001142A (en) * 1990-05-16 1991-12-16 Philips Nv DISPLAY DEVICE.
US5184236A (en) * 1990-08-10 1993-02-02 Casio Computer Co., Ltd. Twisted nematic liquid crystal display device with retardation plates having phase axis direction within 15° of alignment direction
US5150235A (en) * 1991-02-04 1992-09-22 Honeywell Inc. Apparatus for improving the angle of view in a liquid crystal display
JP2721284B2 (en) * 1991-02-07 1998-03-04 株式会社東芝 Liquid crystal display element and optically anisotropic element
US5237438A (en) * 1991-05-02 1993-08-17 Casio Computer Co., Ltd. Liquid crystal display device
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
US5196953A (en) * 1991-11-01 1993-03-23 Rockwell International Corporation Compensator for liquid crystal display, having two types of layers with different refractive indices alternating
TW229279B (en) * 1992-06-18 1994-09-01 Casio Computer Co Ltd
US5344916A (en) * 1993-04-21 1994-09-06 The University Of Akron Negative birefringent polyimide films
US5504603A (en) * 1994-04-04 1996-04-02 Rockwell International Corporation Optical compensator for improved gray scale performance in liquid crystal display

Also Published As

Publication number Publication date
DE69524472T2 (en) 2002-08-01
EP1126313B1 (en) 2005-01-05
DE69524472D1 (en) 2002-01-24
ATE286604T1 (en) 2005-01-15
ATE210841T1 (en) 2001-12-15
EP0679921B1 (en) 2001-12-12
US5594568A (en) 1997-01-14
CA2148156C (en) 2005-06-21
EP1126313A1 (en) 2001-08-22
DE69533909D1 (en) 2005-02-10
EP0679921A1 (en) 1995-11-02
DE69533909T2 (en) 2005-12-01

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