FR2399083A1 - Dispositif d'affichage a cristaux liquides - Google Patents

Dispositif d'affichage a cristaux liquides

Info

Publication number
FR2399083A1
FR2399083A1 FR7722801A FR7722801A FR2399083A1 FR 2399083 A1 FR2399083 A1 FR 2399083A1 FR 7722801 A FR7722801 A FR 7722801A FR 7722801 A FR7722801 A FR 7722801A FR 2399083 A1 FR2399083 A1 FR 2399083A1
Authority
FR
France
Prior art keywords
layer
block
mols
liq
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
FR7722801A
Other languages
English (en)
Other versions
FR2399083B1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7722801A priority Critical patent/FR2399083A1/fr
Publication of FR2399083A1 publication Critical patent/FR2399083A1/fr
Application granted granted Critical
Publication of FR2399083B1 publication Critical patent/FR2399083B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • 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
    • G02F1/133—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
    • G02F1/133703—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by introducing organic surfactant additives into the liquid crystal material

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne les moyens de représentation d'informations visuelles. Le dispositif faisant l'objet de l'invention est du type comprenant une couche 1 de cristaux liquides nématiques disposée entre deux structures << sandwich >> ou multicouches transparentes, dont chacune comprend notamment une couche 2 de substance assurant l'orientation des molécules de cristaux liquides nématiques de manière que les grands axes des molécules adjacentes à l'une desdites structures soient parallèles à celle-ci et entre eux et forment un angle de 90 degrés avec les grands axes des molécules adjacentes à l'autre structure, et est caractérisé en ce que la couche 2 de substance assurant ladite orientation des molécules des cristaux nématiques est en oxyde de germanium. L'invention permet notamment d'obtenir un dispositif d'affichage dont la tension d'excitation est inférieure à 1,8 V.
FR7722801A 1977-07-25 1977-07-25 Dispositif d'affichage a cristaux liquides Granted FR2399083A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7722801A FR2399083A1 (fr) 1977-07-25 1977-07-25 Dispositif d'affichage a cristaux liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7722801A FR2399083A1 (fr) 1977-07-25 1977-07-25 Dispositif d'affichage a cristaux liquides

Publications (2)

Publication Number Publication Date
FR2399083A1 true FR2399083A1 (fr) 1979-02-23
FR2399083B1 FR2399083B1 (fr) 1980-02-22

Family

ID=9193763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722801A Granted FR2399083A1 (fr) 1977-07-25 1977-07-25 Dispositif d'affichage a cristaux liquides

Country Status (1)

Country Link
FR (1) FR2399083A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471642A1 (fr) * 1979-12-13 1981-06-19 Asahi Glass Co Ltd Dispositifs d'affichage a cristal liquide du type donneur-recepteur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471642A1 (fr) * 1979-12-13 1981-06-19 Asahi Glass Co Ltd Dispositifs d'affichage a cristal liquide du type donneur-recepteur

Also Published As

Publication number Publication date
FR2399083B1 (fr) 1980-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse