FR2362089A1 - Methode de fabrication d'une cellule d'affichage a cristaux liquides - Google Patents

Methode de fabrication d'une cellule d'affichage a cristaux liquides

Info

Publication number
FR2362089A1
FR2362089A1 FR7724892A FR7724892A FR2362089A1 FR 2362089 A1 FR2362089 A1 FR 2362089A1 FR 7724892 A FR7724892 A FR 7724892A FR 7724892 A FR7724892 A FR 7724892A FR 2362089 A1 FR2362089 A1 FR 2362089A1
Authority
FR
France
Prior art keywords
liq
crystal
cell
zero
film
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.)
Pending
Application number
FR7724892A
Other languages
English (en)
Inventor
William Alden Crossland
Joseph Hourigan Morrissy
Jack Rowland Peters
Simon French Laurence
Barbara Needham
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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
Priority claimed from GB3489576A external-priority patent/GB1533469A/en
Application filed by Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of FR2362089A1 publication Critical patent/FR2362089A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/225—Oblique incidence of vaporised material on substrate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • 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
    • G02F1/133734—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by obliquely evaporated films, e.g. Si or SiO2 films

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

Cellule d'affichage à cristaux liquides nématiques en hélice comportant au moins une couche de SiO formée par évaporation oblique sur une surface principale pour fournir une certaine inclinaison dans l'alignement de la directrice nématique par rapport au plan de la surface. L'invention utilise un angle d'évaporation oblique de 5 degrés qui fournit une inclinaison trop forte et réduit la vitesse de réponse de la cellule. L'angle d'inclinaison est ensuite réduit par formation d'une seconde couche de SiO déposée par evaporation oblique à 30 degrés après avoir fait tourner le substrat 10 de 90 degrés dans son plan (permutation ABDC). En variante, l'inclinaison peut être réduite en recouvrant la première couche d'un agent tensio-actif ou de silice déposée en phase vapeur, fournissant un alignement homogène, le parallélisme de l'alignement dû à la première couche étant conservé.
FR7724892A 1976-08-17 1977-08-12 Methode de fabrication d'une cellule d'affichage a cristaux liquides Pending FR2362089A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3429876 1976-08-17
GB3489576A GB1533469A (en) 1976-08-20 1976-08-20 Liquid crystal display cells
GB2839677 1977-07-06

Publications (1)

Publication Number Publication Date
FR2362089A1 true FR2362089A1 (fr) 1978-03-17

Family

ID=27258718

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724892A Pending FR2362089A1 (fr) 1976-08-17 1977-08-12 Methode de fabrication d'une cellule d'affichage a cristaux liquides

Country Status (2)

Country Link
JP (1) JPS5351761A (fr)
FR (1) FR2362089A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5683718A (en) * 1979-12-13 1981-07-08 Asahi Glass Co Ltd Liquid crystal display element
JPS5730816A (en) * 1980-07-31 1982-02-19 Alps Electric Co Ltd Liquid crystal electrode substrate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967883A (en) * 1975-05-22 1976-07-06 Rca Corporation Liquid crystal devices of the surface aligned type
FR2323201A1 (fr) * 1975-09-02 1977-04-01 Siemens Ag Dispositif d'affichage a cristal liquide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050947A (fr) * 1973-09-03 1975-05-07
JPS5628249B2 (fr) * 1973-12-13 1981-06-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967883A (en) * 1975-05-22 1976-07-06 Rca Corporation Liquid crystal devices of the surface aligned type
FR2323201A1 (fr) * 1975-09-02 1977-04-01 Siemens Ag Dispositif d'affichage a cristal liquide

Also Published As

Publication number Publication date
JPS5351761A (en) 1978-05-11

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