GB2003290A - Liquid crystal display devices - Google Patents

Liquid crystal display devices

Info

Publication number
GB2003290A
GB2003290A GB7831669A GB7831669A GB2003290A GB 2003290 A GB2003290 A GB 2003290A GB 7831669 A GB7831669 A GB 7831669A GB 7831669 A GB7831669 A GB 7831669A GB 2003290 A GB2003290 A GB 2003290A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
cell
fluorescent dye
polariser
coloured
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
GB7831669A
Other versions
GB2003290B (en
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 GB7831669A priority Critical patent/GB2003290B/en
Publication of GB2003290A publication Critical patent/GB2003290A/en
Application granted granted Critical
Publication of GB2003290B publication Critical patent/GB2003290B/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
    • G02F1/133—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
    • G02F1/1336—Illuminating devices
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the 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
    • 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
    • G02F1/13725—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 guest-host interaction
    • 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
    • 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
    • G02F1/133533—Colour selective polarisers
    • 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
    • G02F1/133553—Reflecting elements

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

Relates to enhancing colour contrast in liquid crystal displays with addressed character or background electrodes. A liquid crystal arrangement capable of providing light with a variable degree or direction of linear polarisation (twist cell 53 and polariser 51; or dye in a twist cell, or in a cell for homotropic to parallel realignment or vice versa); backed by an optically anisotropic plastics plate 55 containing scattering centres and fluorescent dye (a microporous sheet containing a fluorescent dye gust-liquid crystal host mixture aligned with the long pore axis; a plastics matrix containing birefringent needles and isotropic or anisotropic fluorescent dye - (or the needles are dyed - and stretched). Fluorescent light produced in and scattered by plate 55 is preferentially associated with the on or off state of the cell 53. Final polariser 57 and reflector 59 may be replaced by a coloured diffuse or specular reflector or a black absorber. Polarisers 51 and 57 may be neutral or coloured. <IMAGE>
GB7831669A 1977-08-08 1978-07-31 Liquid crystal display devices Expired GB2003290B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7831669A GB2003290B (en) 1977-08-08 1978-07-31 Liquid crystal display devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3308877 1977-08-08
GB7831669A GB2003290B (en) 1977-08-08 1978-07-31 Liquid crystal display devices

Publications (2)

Publication Number Publication Date
GB2003290A true GB2003290A (en) 1979-03-07
GB2003290B GB2003290B (en) 1982-02-17

Family

ID=26261714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831669A Expired GB2003290B (en) 1977-08-08 1978-07-31 Liquid crystal display devices

Country Status (1)

Country Link
GB (1) GB2003290B (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007645A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light
EP0007635A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light and process for the manufacture of such a device
EP0007644A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light and process for the manufacture of such a device
US4208106A (en) * 1976-09-27 1980-06-17 Beckman Instruments, Inc. Fluorescent displays
US4211473A (en) * 1978-04-12 1980-07-08 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal display devices
EP0022198A1 (en) * 1979-07-04 1981-01-14 Siemens Aktiengesellschaft Arrangement for increasing the brightness of passive display devices
DE3103936A1 (en) * 1981-02-05 1982-08-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Colouring of transparent polymer materials by diffusion, and their use in light-concentrating and light-conducting systems
EP0121415A2 (en) * 1983-03-30 1984-10-10 MANCHESTER R &amp; D LIMITED PARTNERSHIP Colored encapsulated liquid crystal apparatus using enhanced scattering, imbibition method, and scanned multicolor displays
EP0060895B1 (en) * 1980-10-03 1985-05-02 MITSUI TOATSU CHEMICALS, Inc. Composition for liquid crystal color display
US4834508A (en) * 1985-03-01 1989-05-30 Manchester R & D Partnership Complementary color liquid crystal display
US4838660A (en) * 1983-03-30 1989-06-13 Manchester R & D Partnership Colored encapsulated liquid crystal apparatus using enhanced scattering
US4856876A (en) * 1983-03-30 1989-08-15 Manchester R & D Partnership Fluorescent colored encapsulated liquid crystal apparatus using enhanced scattering
US4878741A (en) * 1986-09-10 1989-11-07 Manchester R & D Partnership Liquid crystal color display and method
US4953953A (en) * 1985-03-01 1990-09-04 Manchester R & D Partnership Complementary color liquid display
US5142389A (en) * 1985-03-01 1992-08-25 Manchester R & D Limited Partnership Liquid crystal color display and method
US5168380A (en) * 1985-03-01 1992-12-01 Manchester R & D Partnership An Ohio Limited Partnership Multiple containment mediums of operationally nematic liquid crystal responsive to a prescribed input
US5208686A (en) * 1985-03-01 1993-05-04 Manchester R&D Partnership Liquid crystal color display and method
US5345322A (en) * 1985-03-01 1994-09-06 Manchester R&D Limited Partnership Complementary color liquid crystal display
EP0857995A1 (en) * 1997-02-07 1998-08-12 Mannesmann VDO Aktiengesellschaft Display device with a liquid crystal cell
FR2786882A1 (en) * 1998-12-04 2000-06-09 Sextant Avionique OPTICAL DEVICE WITH PROTECTED THIN OPTIC FILMS

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208106A (en) * 1976-09-27 1980-06-17 Beckman Instruments, Inc. Fluorescent displays
US4211473A (en) * 1978-04-12 1980-07-08 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal display devices
EP0007635A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light and process for the manufacture of such a device
EP0007644A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light and process for the manufacture of such a device
EP0007644A3 (en) * 1978-08-02 1980-03-05 Siemens Ag Device for collecting light and process for the manufacture of such a device
EP0007635A3 (en) * 1978-08-02 1980-03-05 Siemens Ag Device for collecting light and process for the manufacture of such a device
EP0007645A3 (en) * 1978-08-02 1980-03-19 Siemens Ag Device for collecting light
EP0007645A2 (en) * 1978-08-02 1980-02-06 Siemens Aktiengesellschaft Device for collecting light
EP0022198A1 (en) * 1979-07-04 1981-01-14 Siemens Aktiengesellschaft Arrangement for increasing the brightness of passive display devices
EP0060895B1 (en) * 1980-10-03 1985-05-02 MITSUI TOATSU CHEMICALS, Inc. Composition for liquid crystal color display
DE3103936A1 (en) * 1981-02-05 1982-08-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Colouring of transparent polymer materials by diffusion, and their use in light-concentrating and light-conducting systems
EP0121415A3 (en) * 1983-03-30 1986-07-30 Manchester R & D Partnership Colored encapsulated liquid crystal apparatus using enhanced scattering, imbibition method, and scanned multicolor displays
US4856876A (en) * 1983-03-30 1989-08-15 Manchester R & D Partnership Fluorescent colored encapsulated liquid crystal apparatus using enhanced scattering
EP0121415A2 (en) * 1983-03-30 1984-10-10 MANCHESTER R &amp; D LIMITED PARTNERSHIP Colored encapsulated liquid crystal apparatus using enhanced scattering, imbibition method, and scanned multicolor displays
US4838660A (en) * 1983-03-30 1989-06-13 Manchester R & D Partnership Colored encapsulated liquid crystal apparatus using enhanced scattering
US5142389A (en) * 1985-03-01 1992-08-25 Manchester R & D Limited Partnership Liquid crystal color display and method
US4953953A (en) * 1985-03-01 1990-09-04 Manchester R & D Partnership Complementary color liquid display
US4834508A (en) * 1985-03-01 1989-05-30 Manchester R & D Partnership Complementary color liquid crystal display
US5168380A (en) * 1985-03-01 1992-12-01 Manchester R & D Partnership An Ohio Limited Partnership Multiple containment mediums of operationally nematic liquid crystal responsive to a prescribed input
US5208686A (en) * 1985-03-01 1993-05-04 Manchester R&D Partnership Liquid crystal color display and method
US5345322A (en) * 1985-03-01 1994-09-06 Manchester R&D Limited Partnership Complementary color liquid crystal display
US4878741A (en) * 1986-09-10 1989-11-07 Manchester R & D Partnership Liquid crystal color display and method
EP0857995A1 (en) * 1997-02-07 1998-08-12 Mannesmann VDO Aktiengesellschaft Display device with a liquid crystal cell
FR2786882A1 (en) * 1998-12-04 2000-06-09 Sextant Avionique OPTICAL DEVICE WITH PROTECTED THIN OPTIC FILMS
WO2000034815A1 (en) * 1998-12-04 2000-06-15 Thomson-Csf Sextant Optical device with protected thin optical films
US6504661B1 (en) 1998-12-04 2003-01-07 Thomson-Csf Sextant Optical device with protected thin optical films

Also Published As

Publication number Publication date
GB2003290B (en) 1982-02-17

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Legal Events

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