NO895181L - FERROELECTRIC FLUID CRYSTAL SWITCH AND DISPLAY ELEMENT WITH REDUCED OPTICAL HYSTERESE. - Google Patents

FERROELECTRIC FLUID CRYSTAL SWITCH AND DISPLAY ELEMENT WITH REDUCED OPTICAL HYSTERESE.

Info

Publication number
NO895181L
NO895181L NO89895181A NO895181A NO895181L NO 895181 L NO895181 L NO 895181L NO 89895181 A NO89895181 A NO 89895181A NO 895181 A NO895181 A NO 895181A NO 895181 L NO895181 L NO 895181L
Authority
NO
Norway
Prior art keywords
hysterese
display element
reduced optical
crystal switch
fluid crystal
Prior art date
Application number
NO89895181A
Other languages
Norwegian (no)
Other versions
NO895181D0 (en
Inventor
Claus Escher
Hans-Rolf Duebal
Mikio Murakami
Gerhard Illian
Dieter Ohlendorf
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of NO895181D0 publication Critical patent/NO895181D0/en
Publication of NO895181L publication Critical patent/NO895181L/en

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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • 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

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

Bryter- og fremvisningselement på basis av ferro-elektriske flytendekrystaller viser ofte en utpreget optisk hysterese som farer til opptreden av såkalte spøkelsesbilder. Dette fenomenet kan reduseres betydelig eller sågar undertrykkes når minst en av de to elektrodene i slike elementer står i umiddelbar kontakt med det flytendekrystallinske mediet.Switch and display elements based on ferroelectric liquid crystals often show a pronounced optical hysteresis which leads to the appearance of so-called ghost images. This phenomenon can be significantly reduced or even suppressed when at least one of the two electrodes in such elements is in immediate contact with the liquid crystalline medium.

NO89895181A 1988-12-22 1989-12-21 FERROELECTRIC FLUID CRYSTAL SWITCH AND DISPLAY ELEMENT WITH REDUCED OPTICAL HYSTERESE. NO895181L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883843228 DE3843228A1 (en) 1988-12-22 1988-12-22 FERROELECTRIC LIQUID CRYSTAL SWITCHING AND DISPLAY ELEMENT WITH REDUCED OPTICAL HYSTERESIS

Publications (2)

Publication Number Publication Date
NO895181D0 NO895181D0 (en) 1989-12-21
NO895181L true NO895181L (en) 1990-06-25

Family

ID=6369845

Family Applications (1)

Application Number Title Priority Date Filing Date
NO89895181A NO895181L (en) 1988-12-22 1989-12-21 FERROELECTRIC FLUID CRYSTAL SWITCH AND DISPLAY ELEMENT WITH REDUCED OPTICAL HYSTERESE.

Country Status (4)

Country Link
EP (1) EP0374865A3 (en)
JP (1) JPH02221929A (en)
DE (1) DE3843228A1 (en)
NO (1) NO895181L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925970A1 (en) * 1989-08-05 1991-02-07 Hoechst Ag ELECTRICALLY CONDUCTIVE POLYMERS AND THEIR USE AS AN ORIENTATION LAYER IN LIQUID CRYSTAL SWITCHING AND DISPLAY ELEMENTS
US5327272A (en) * 1991-03-27 1994-07-05 Canon Kabushiki Kaisha Optical modulation element
DE69330854D1 (en) * 1992-07-30 2001-11-08 Canon Kk Liquid crystal display device
JPH07334130A (en) * 1994-06-10 1995-12-22 Casio Comput Co Ltd Ferroelectric liquid crystal display device and driving method for ferroelectric liquid crystal display device
JPH07333580A (en) * 1994-06-10 1995-12-22 Casio Comput Co Ltd Ferroelectric liquid crystal display device and method for driving ferroelectric liquid crystal display element
KR100647045B1 (en) * 1999-05-27 2006-11-17 스미또모 가가꾸 가부시끼가이샤 Unsymmetrical dioxazine compound, dichroic dye, liquid crystal composition, and liquid crystal display element
US6753047B1 (en) * 1999-06-10 2004-06-22 Ppg Industries Ohio, Inc. Electrodes for liquid crystal cells
DE19933843B4 (en) * 1999-07-20 2005-02-17 Robert Bosch Gmbh A layer containing electrically conductive, transparent material, a method of making such a layer and their use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256787A (en) * 1978-05-03 1981-03-17 Massachusetts Institute Of Technology Orientation of ordered liquids and their use in devices
JPS6157924A (en) * 1984-08-29 1986-03-25 Canon Inc Liquid crystal printer head
JPH0711632B2 (en) * 1986-11-25 1995-02-08 キヤノン株式会社 Voltage application method for chiral smectic liquid crystal device

Also Published As

Publication number Publication date
EP0374865A2 (en) 1990-06-27
DE3843228A1 (en) 1990-06-28
NO895181D0 (en) 1989-12-21
EP0374865A3 (en) 1990-10-24
JPH02221929A (en) 1990-09-04

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