GB1506570A - Liquid crystal devices - Google Patents

Liquid crystal devices

Info

Publication number
GB1506570A
GB1506570A GB1913174A GB1913174A GB1506570A GB 1506570 A GB1506570 A GB 1506570A GB 1913174 A GB1913174 A GB 1913174A GB 1913174 A GB1913174 A GB 1913174A GB 1506570 A GB1506570 A GB 1506570A
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.)
Expired
Application number
GB1913174A
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
Priority to GB1913174A priority Critical patent/GB1506570A/en
Publication of GB1506570A publication Critical patent/GB1506570A/en
Expired 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
    • 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
    • G02F1/1393—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 birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
GB1913174A 1975-07-08 1975-07-08 Liquid crystal devices Expired GB1506570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1913174A GB1506570A (en) 1975-07-08 1975-07-08 Liquid crystal devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1913174A GB1506570A (en) 1975-07-08 1975-07-08 Liquid crystal devices

Publications (1)

Publication Number Publication Date
GB1506570A true GB1506570A (en) 1978-04-05

Family

ID=10124276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1913174A Expired GB1506570A (en) 1975-07-08 1975-07-08 Liquid crystal devices

Country Status (1)

Country Link
GB (1) GB1506570A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076651A1 (en) * 1981-10-01 1983-04-13 National Research Development Corporation Polariscope
GB2138586A (en) * 1983-04-20 1984-10-24 Consiglio Nazionale Ricerche Liquid crystal device
EP0271344A2 (en) * 1986-12-11 1988-06-15 Fujitsu Limited Liquid crystal display element and method for driving same
US4904060A (en) * 1987-11-23 1990-02-27 Asulab, S.A. Liquid crystal display cell having a diffusely-reflective counter electrode
US4923286A (en) * 1986-02-27 1990-05-08 Asulab S.A. Display cell
DE4000451A1 (en) * 1990-01-09 1991-07-11 Fraunhofer Ges Forschung ELECTROOPTICAL LIQUID CRYSTAL SWITCHING ELEMENT
US5576867A (en) * 1990-01-09 1996-11-19 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid crystal switching elements having a parallel electric field and βo which is not 0° or 90°

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076651A1 (en) * 1981-10-01 1983-04-13 National Research Development Corporation Polariscope
US4523848A (en) * 1981-10-01 1985-06-18 National Research Development Corporation Polariscope
GB2138586A (en) * 1983-04-20 1984-10-24 Consiglio Nazionale Ricerche Liquid crystal device
DE3325414A1 (en) * 1983-04-20 1984-10-25 Consiglio Nazionale Delle Ricerche, Rom/Roma LIQUID CRYSTAL DEVICE
FR2544882A1 (en) * 1983-04-20 1984-10-26 Consiglio Nazionale Ricerche LIQUID CRYSTAL DEVICE FOR THE CONTINUOUS ROTATION OF THE SELECTIVE POLARIZATION OF A MONOCHROMATIC LIGHT
US4923286A (en) * 1986-02-27 1990-05-08 Asulab S.A. Display cell
EP0271344A3 (en) * 1986-12-11 1989-12-06 Fujitsu Limited Liquid crystal display element and method for driving same
EP0271344A2 (en) * 1986-12-11 1988-06-15 Fujitsu Limited Liquid crystal display element and method for driving same
US4904060A (en) * 1987-11-23 1990-02-27 Asulab, S.A. Liquid crystal display cell having a diffusely-reflective counter electrode
DE4000451A1 (en) * 1990-01-09 1991-07-11 Fraunhofer Ges Forschung ELECTROOPTICAL LIQUID CRYSTAL SWITCHING ELEMENT
US5576867A (en) * 1990-01-09 1996-11-19 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid crystal switching elements having a parallel electric field and βo which is not 0° or 90°
DE4000451B4 (en) * 1990-01-09 2004-12-09 Merck Patent Gmbh Electro-optical liquid crystal switching element
US7656490B1 (en) 1990-01-09 2010-02-02 Merck Patent Gesellschaft LC display device with parallel field component

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee