GB2210469A - Liquid crystal devices - Google Patents

Liquid crystal devices

Info

Publication number
GB2210469A
GB2210469A GB8823165A GB8823165A GB2210469A GB 2210469 A GB2210469 A GB 2210469A GB 8823165 A GB8823165 A GB 8823165A GB 8823165 A GB8823165 A GB 8823165A GB 2210469 A GB2210469 A GB 2210469A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal devices
devices
liquid
crystal
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
GB8823165A
Other versions
GB8823165D0 (en
GB2210469B (en
Inventor
Ian Coulson
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB8823165D0 publication Critical patent/GB8823165D0/en
Publication of GB2210469A publication Critical patent/GB2210469A/en
Application granted granted Critical
Publication of GB2210469B publication Critical patent/GB2210469B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02F1/137—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
    • 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
    • G02F1/141—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 using ferroelectric liquid crystals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • C09K19/126—Compounds containing at least one asymmetric carbon atom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
    • C09K19/2021—Compounds containing at least one asymmetric carbon atom
    • 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
    • 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
    • G02F1/133734—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by obliquely evaporated films, e.g. Si or SiO2 films
    • 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
    • G02F1/133746—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for high pretilt angles, i.e. higher than 15 degrees
GB8823165A 1986-04-03 1988-10-03 Liquid crystal devices Expired - Lifetime GB2210469B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868608116A GB8608116D0 (en) 1986-04-03 1986-04-03 Liquid crystal devices
PCT/GB1987/000220 WO1987006020A1 (en) 1986-04-03 1987-04-01 Liquid crystal devices

Publications (3)

Publication Number Publication Date
GB8823165D0 GB8823165D0 (en) 1988-11-30
GB2210469A true GB2210469A (en) 1989-06-07
GB2210469B GB2210469B (en) 1990-03-28

Family

ID=10595595

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868608116A Pending GB8608116D0 (en) 1986-04-03 1986-04-03 Liquid crystal devices
GB8823165A Expired - Lifetime GB2210469B (en) 1986-04-03 1988-10-03 Liquid crystal devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868608116A Pending GB8608116D0 (en) 1986-04-03 1986-04-03 Liquid crystal devices

Country Status (10)

Country Link
US (1) US4997264A (en)
EP (1) EP0299970B1 (en)
JP (2) JP2568236B2 (en)
KR (1) KR0141984B1 (en)
CA (1) CA1294354C (en)
DE (1) DE3788724T2 (en)
GB (2) GB8608116D0 (en)
HK (1) HK201296A (en)
MY (1) MY102915A (en)
WO (1) WO1987006020A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6727968B1 (en) 1997-10-08 2004-04-27 Hewlett-Packard Development Company, L.P. Liquid crystal device alignment

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8608115D0 (en) * 1986-04-03 1986-05-08 Secr Defence Smectic liquid crystal devices
JP2607380B2 (en) * 1987-04-13 1997-05-07 テクトロニックス・インコーポレイテッド Liquid crystal cell
US5200848A (en) * 1987-09-17 1993-04-06 Canon Kabushiki Kaisha Ferroelectric smectic liquid crystal device
US4932758A (en) * 1987-09-17 1990-06-12 Canon Kabushiki Kaisha Ferroelectric smectic liquid crystal device having a bistable alignment state providing two stable orientation states
JP2681779B2 (en) * 1987-09-18 1997-11-26 キヤノン株式会社 Liquid crystal cell
US5422749A (en) * 1987-09-17 1995-06-06 Canon Kabushiki Kaisha Ferroelectric smetic liquid crystal device
GB8726996D0 (en) * 1987-11-18 1987-12-23 Secr Defence Multiplex addressing of ferro-electric liquid crystal displays
JPH01302226A (en) * 1988-05-30 1989-12-06 Alps Electric Co Ltd Ferroelectric liquid crystal element
US5327273A (en) * 1989-06-29 1994-07-05 Hoffmann-La Roche Inc. Bistable ferroelectric liquid crystal display cell
JP2645754B2 (en) * 1989-10-26 1997-08-25 キヤノン株式会社 Liquid crystal element
US5646704A (en) * 1989-10-26 1997-07-08 Canon Kabushiki Kaisha Chiral smectic liquid crystal device having predetermined pre-tilt angle and intersection angle
GB9002105D0 (en) * 1990-01-31 1990-03-28 Stc Plc Ferro electric liquid crystal cells
JP2982330B2 (en) * 1990-04-28 1999-11-22 ソニー株式会社 Liquid crystal display device
GB9127316D0 (en) * 1991-12-23 1992-02-19 Secr Defence Ferroelectric liquid crystal display device(improved contrast)
EP0553727B1 (en) * 1992-01-24 1998-08-05 Canon Kabushiki Kaisha Treatment method for a chiral smectic liquid crystal device
US5539553A (en) * 1993-04-09 1996-07-23 Canon Kabushiki Kaisha Liquid crystal device with an electrically neutral interface between the liquid crystal and orientation layer
US5760860A (en) * 1994-02-25 1998-06-02 The Secretary Of State For Defense In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Electro-optic scattering type devices with color polariser for switchable color
US5933128A (en) * 1995-05-17 1999-08-03 Canon Kabushiki Kaisha Chiral smectic liquid crystal apparatus and driving method therefor
GB9604461D0 (en) * 1996-03-01 1996-05-01 Secr Defence Alignment of ferroelectric liquid crystal displays
US5907380A (en) * 1997-10-30 1999-05-25 International Business Machines Corporation Liquid crystal cell employing thin wall for pre-tilt control
JP2001249364A (en) * 1999-12-28 2001-09-14 Canon Inc Method for manufacturing liquid crystal element
GB2415703A (en) * 2004-07-02 2006-01-04 Hewlett Packard Development Co Liquid crystal display device
WO2006123803A1 (en) * 2005-05-19 2006-11-23 Canon Kabushiki Kaisha Liquid crystal display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092181A2 (en) * 1982-04-16 1983-10-26 Hitachi, Ltd. Method for driving liquid crystal element employing ferroelectric liquid crystal
EP0164814A2 (en) * 1984-06-11 1985-12-18 Chisso Corporation Liquid crystalline ester compounds and mixtures thereof
FR2567533A1 (en) * 1984-07-13 1986-01-17 Canon Kk LIQUID CRYSTAL DEVICE
EP0179592A2 (en) * 1984-10-25 1986-04-30 Itt Industries, Inc. Ferroelectric liquid crystal display cells

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DE2353906B1 (en) * 1973-10-27 1974-11-14 Halbach & Braun Single chain scraper conveyor
GB1454296A (en) * 1973-12-03 1976-11-03 Secr Defence Production of liquid crystal devices
US4084884A (en) * 1974-02-21 1978-04-18 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal devices
US4291948A (en) * 1977-11-10 1981-09-29 International Standard Electric Corporation Liquid crystal display incorporating positive and negative smectic material
US4394069A (en) * 1979-06-05 1983-07-19 Beckman Instruments, Inc. Liquid crystal tuned birefringent filter
US4563059A (en) * 1983-01-10 1986-01-07 Clark Noel A Surface stabilized ferroelectric liquid crystal devices
JPS58173718A (en) * 1982-04-07 1983-10-12 Hitachi Ltd Optical modulating device of liquid crystal and its production
JPS59129837A (en) * 1983-01-14 1984-07-26 Canon Inc Applying method of time division voltage
JPS60220316A (en) * 1984-04-16 1985-11-05 Canon Inc Liquid crystal optical element
US4634228A (en) * 1984-05-01 1987-01-06 Hitachi, Ltd. Ferroelectric liquid crystal cell with rubbed polyimide alignment layer
JPS6167829A (en) * 1984-09-11 1986-04-08 Canon Inc Liquid crystal element
JPS6167832A (en) * 1984-09-12 1986-04-08 Canon Inc Liquid crystal element
ATE74674T1 (en) * 1984-11-14 1992-04-15 Northern Telecom Ltd TWO-DIMENSIONAL OPTICAL INFORMATION PROCESSING DEVICE.
US4664480A (en) * 1985-04-26 1987-05-12 American Telephone And Telegraph Company, At&T Bell Laboratories Alignment technique for liquid crystal devices
US4707078A (en) * 1985-04-26 1987-11-17 American Telephone And Telegraph Company, At&T Bell Laboratories Ferroelectric liquid crystal devices using field-stabilized states
US4615586A (en) * 1985-04-26 1986-10-07 At&T Bell Laboratories Liquid crystal devices
JPS62160426A (en) * 1986-01-08 1987-07-16 Sharp Corp Liquid crystal display element
JPS62192724A (en) * 1986-02-20 1987-08-24 Toshiba Corp Ferroelectric liquid crystal element and its production
US4879059A (en) * 1986-09-02 1989-11-07 Canon Kabushiki Kaisha Liquid crystal device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092181A2 (en) * 1982-04-16 1983-10-26 Hitachi, Ltd. Method for driving liquid crystal element employing ferroelectric liquid crystal
EP0164814A2 (en) * 1984-06-11 1985-12-18 Chisso Corporation Liquid crystalline ester compounds and mixtures thereof
FR2567533A1 (en) * 1984-07-13 1986-01-17 Canon Kk LIQUID CRYSTAL DEVICE
EP0179592A2 (en) * 1984-10-25 1986-04-30 Itt Industries, Inc. Ferroelectric liquid crystal display cells

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Applied Physics Letters, volum 47, no. 12, 15 De *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6727968B1 (en) 1997-10-08 2004-04-27 Hewlett-Packard Development Company, L.P. Liquid crystal device alignment

Also Published As

Publication number Publication date
KR880701395A (en) 1988-07-26
KR0141984B1 (en) 1998-06-15
DE3788724D1 (en) 1994-02-17
HK201296A (en) 1996-11-15
WO1987006020A1 (en) 1987-10-08
JP2562569B2 (en) 1996-12-11
MY102915A (en) 1993-03-31
EP0299970B1 (en) 1994-01-05
GB8823165D0 (en) 1988-11-30
JP2568236B2 (en) 1996-12-25
GB8608116D0 (en) 1986-05-08
JPH07209676A (en) 1995-08-11
US4997264A (en) 1991-03-05
CA1294354C (en) 1992-01-14
JPH01501174A (en) 1989-04-20
DE3788724T2 (en) 1994-05-19
GB2210469B (en) 1990-03-28
EP0299970A1 (en) 1989-01-25

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee