GB2210468A - Smectic liquid crystal devices - Google Patents

Smectic liquid crystal devices

Info

Publication number
GB2210468A
GB2210468A GB8823118A GB8823118A GB2210468A GB 2210468 A GB2210468 A GB 2210468A GB 8823118 A GB8823118 A GB 8823118A GB 8823118 A GB8823118 A GB 8823118A GB 2210468 A GB2210468 A GB 2210468A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
smectic liquid
crystal devices
devices
smectic
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
GB8823118A
Other versions
GB8823118D0 (en
GB2210468B (en
Inventor
Madeline Joan Bradshaw
Edward Peter Raynes
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 GB8823118D0 publication Critical patent/GB8823118D0/en
Publication of GB2210468A publication Critical patent/GB2210468A/en
Application granted granted Critical
Publication of GB2210468B publication Critical patent/GB2210468B/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
    • 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
GB8823118A 1986-04-03 1988-04-01 Smectic liquid crystal devices Expired - Lifetime GB2210468B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868608115A GB8608115D0 (en) 1986-04-03 1986-04-03 Smectic liquid crystal devices
PCT/GB1987/000221 WO1987006021A1 (en) 1986-04-03 1987-04-01 Smectic liquid crystal devices

Publications (3)

Publication Number Publication Date
GB8823118D0 GB8823118D0 (en) 1988-11-30
GB2210468A true GB2210468A (en) 1989-06-07
GB2210468B GB2210468B (en) 1990-07-25

Family

ID=10595594

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868608115A Pending GB8608115D0 (en) 1986-04-03 1986-04-03 Smectic liquid crystal devices
GB8823118A Expired - Lifetime GB2210468B (en) 1986-04-03 1988-04-01 Smectic liquid crystal devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868608115A Pending GB8608115D0 (en) 1986-04-03 1986-04-03 Smectic liquid crystal devices

Country Status (10)

Country Link
US (1) US4969719A (en)
EP (1) EP0301020B1 (en)
JP (2) JP2575768B2 (en)
KR (1) KR0141983B1 (en)
CA (1) CA1281404C (en)
DE (1) DE3787279T2 (en)
GB (2) GB8608115D0 (en)
HK (1) HK148594A (en)
MY (1) MY101914A (en)
WO (1) WO1987006021A1 (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 (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249019A (en) * 1985-04-26 1986-11-06 Canon Inc Liquid crystal element
GB8608115D0 (en) * 1986-04-03 1986-05-08 Secr Defence Smectic liquid crystal devices
GB8608114D0 (en) 1986-04-03 1986-05-08 Secr Defence Smectic liquid crystal devices
US5676880A (en) * 1987-09-18 1997-10-14 Rolic Ag Ferroelectric liquid crystal cell
EP0309774B1 (en) 1987-09-18 1992-11-19 F. Hoffmann-La Roche Ag Ferroelectric liquid-crystal cell
JP2566807B2 (en) * 1987-11-11 1996-12-25 キヤノン株式会社 Optically active substance, method for producing the same and liquid crystal composition containing the same
JP2610467B2 (en) * 1987-11-12 1997-05-14 キヤノン株式会社 Liquid crystal compound, liquid crystal composition containing the same, and liquid crystal device using the same
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
US5231528A (en) * 1989-06-23 1993-07-27 Hoechst Aktiengesellschaft Ferroelectric liquid crystal components having high spontaneous polarization and low helical pitch
US5327273A (en) * 1989-06-29 1994-07-05 Hoffmann-La Roche Inc. Bistable ferroelectric liquid crystal display cell
US5168381A (en) * 1989-10-30 1992-12-01 University Research Corporation Smectic liquid crystal devices using SSFLC and electroclinic effect based cells
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
US5539555A (en) * 1990-07-20 1996-07-23 Displaytech, Inc. High contrast distorted helex effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein
JP2001249364A (en) * 1999-12-28 2001-09-14 Canon Inc Method for manufacturing liquid crystal element
JP4605978B2 (en) * 2002-08-30 2011-01-05 富士通株式会社 Manufacturing method of liquid crystal display device
JP4266321B2 (en) * 2003-04-18 2009-05-20 フジノン株式会社 Digital camera
JP3856141B2 (en) * 2003-12-17 2006-12-13 ソニー株式会社 Lens barrel and imaging device
FR2939916B1 (en) * 2008-12-15 2011-04-01 Essilor Int OPTICAL ELEMENT WITH VARIABLE POWER
CN102460238A (en) 2009-04-10 2012-05-16 雷文布里克有限责任公司 Thermally switched optical filter incorporating a guest-host architecture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008956A1 (en) * 1978-09-13 1980-03-19 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to liquid crystal materials and devices
EP0091637A2 (en) * 1982-04-05 1983-10-19 Hitachi, Ltd. Liquid crystal display
EP0156726A1 (en) * 1984-03-20 1985-10-02 Thomson-Csf Process for the preparation of a smectic C-chiral ferroelectric liquid crystal, liquid crystal and display device using the same.
EP0160302A2 (en) * 1984-05-01 1985-11-06 Hitachi, Ltd. Ferroelectric liquid crystal cell

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367924A (en) * 1980-01-08 1983-01-11 Clark Noel A Chiral smectic C or H liquid crystal electro-optical device
GB2187018B (en) 1984-02-24 1988-02-10 Colin Robert Francis Hazzard or security monitoring device
JPH0754382B2 (en) * 1984-12-27 1995-06-07 旭硝子株式会社 Method for manufacturing liquid crystal electro-optical device
JPH0717904B2 (en) * 1985-01-29 1995-03-01 旭硝子株式会社 Ferroelectric liquid crystal composition
JPS61249019A (en) * 1985-04-26 1986-11-06 Canon Inc Liquid crystal element
JPH0750272B2 (en) * 1985-05-02 1995-05-31 旭硝子株式会社 Method for manufacturing ferroelectric smectic liquid crystal electro-optical device
JPS62143030A (en) * 1985-12-17 1987-06-26 Matsushita Electric Ind Co Ltd Ferroelectric liquid crystal display device
JPS62141093A (en) * 1985-12-17 1987-06-24 Matsushita Electric Ind Co Ltd Ferroelectric liquid crystal display unit
JP2867135B2 (en) * 1985-12-20 1999-03-08 セイコーエプソン株式会社 Ferroelectric liquid crystal composition
JPS62205190A (en) * 1986-03-05 1987-09-09 Matsushita Electric Ind Co Ltd Liquid crystal composition
JPS62205189A (en) * 1986-03-05 1987-09-09 Matsushita Electric Ind Co Ltd Liquid crystal display device
GB8606338D0 (en) 1986-03-14 1986-04-23 Campbell M D Rolling apparatus
GB8608116D0 (en) * 1986-04-03 1986-05-08 Secr Defence Liquid crystal devices
GB8608115D0 (en) * 1986-04-03 1986-05-08 Secr Defence Smectic liquid crystal devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008956A1 (en) * 1978-09-13 1980-03-19 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to liquid crystal materials and devices
EP0091637A2 (en) * 1982-04-05 1983-10-19 Hitachi, Ltd. Liquid crystal display
EP0156726A1 (en) * 1984-03-20 1985-10-02 Thomson-Csf Process for the preparation of a smectic C-chiral ferroelectric liquid crystal, liquid crystal and display device using the same.
EP0160302A2 (en) * 1984-05-01 1985-11-06 Hitachi, Ltd. Ferroelectric liquid crystal cell

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
GB8823118D0 (en) 1988-11-30
US4969719A (en) 1990-11-13
CA1281404C (en) 1991-03-12
JPH08101368A (en) 1996-04-16
GB2210468B (en) 1990-07-25
HK148594A (en) 1995-01-06
DE3787279D1 (en) 1993-10-07
GB8608115D0 (en) 1986-05-08
JPH01500855A (en) 1989-03-23
JP2575768B2 (en) 1997-01-29
EP0301020A1 (en) 1989-02-01
DE3787279T2 (en) 1994-01-27
JP2804908B2 (en) 1998-09-30
EP0301020B1 (en) 1993-09-01
MY101914A (en) 1992-02-15
KR0141983B1 (en) 1998-06-15
WO1987006021A1 (en) 1987-10-08
KR880701394A (en) 1988-07-26

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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)
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