GB1306912A - Liquid crystal cells - Google Patents

Liquid crystal cells

Info

Publication number
GB1306912A
GB1306912A GB203071A GB203071A GB1306912A GB 1306912 A GB1306912 A GB 1306912A GB 203071 A GB203071 A GB 203071A GB 203071 A GB203071 A GB 203071A GB 1306912 A GB1306912 A GB 1306912A
Authority
GB
United Kingdom
Prior art keywords
metal
liquid crystal
jan
anode
atmosphere
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
GB203071A
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.)
PPG Industries Inc
Original Assignee
PPG 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
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of GB1306912A publication Critical patent/GB1306912A/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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/245—Oxides by deposition from the vapour phase
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/211—SnO2
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/215—In2O3
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/228—Other specific oxides
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/15—Deposition methods from the vapour phase
    • C03C2218/154—Deposition methods from the vapour phase by sputtering

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mathematical Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Physical Vapour Deposition (AREA)
  • Non-Insulated Conductors (AREA)

Abstract

1306912 Modulating light PPG INDUSTRIES Inc 15 Jan 1971 [19 Jan 1970] 2030/71 Heading H4F In a liquid crystal electro-optic cell, at least one of the electrodes comprises a transparent conductive cathodic sputtered metal oxide film deposited on a transparent substrate. Cathodic sputtering occurs when a glow discharge is maintained between an anode and cathode in an atmosphere of chemically reactive gas (such as oxygen) so that cathode metal is deposited as an (oxide) layer on the anode or another adjacent member. In the present case the metal may be In, Sn, Sb, Cd, or mixtures thereof. A dopant of higher valency state included in the metal gives an oxide layer of higher conductivity, and addition of metal of a higher atomic weight enhances the sputtering rate, as does the presence of an inert gas such as a noble gas in the atmosphere. As particularly described, the liquid crystal exhibits dynamic scattering, and the other electrode may be identical to the first, or opaque, or reflective. Parts of the sputtered metal oxide film may be removed, e.g. by etching, grinding or removal of previously applied resist material, to give a patterned electrode, for example a predetermined shape or a grid, lattice or mosaic, with elements which are independently charged by a scanning signal.
GB203071A 1970-01-19 1971-01-15 Liquid crystal cells Expired GB1306912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US395770A 1970-01-19 1970-01-19

Publications (1)

Publication Number Publication Date
GB1306912A true GB1306912A (en) 1973-02-14

Family

ID=21708402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB203071A Expired GB1306912A (en) 1970-01-19 1971-01-15 Liquid crystal cells

Country Status (6)

Country Link
BE (1) BE761706A (en)
CA (1) CA957756A (en)
DE (1) DE2102243A1 (en)
FR (1) FR2091956B1 (en)
GB (1) GB1306912A (en)
NL (1) NL7100099A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1336559A (en) * 1970-05-20 1973-11-07 Triplex Safety Glass Co Metal oxide coatings
CA934325A (en) * 1970-07-31 1973-09-25 Ppg Industries, Inc. Coating glass
DE2919572A1 (en) * 1979-05-15 1980-11-27 Siemens Ag PASSIVE ELECTRO-OPTICAL DISPLAY DEVICE AND METHOD FOR PRODUCING SUCH A DEVICE
DE2930373A1 (en) * 1979-07-26 1981-02-19 Siemens Ag PROCESS FOR PRODUCING TRANSPARENT ELECTRICALLY CONDUCTIVE INDIUM OXIDE (IN DEEP 2 O DEEP 3) LAYERS
DE3230799A1 (en) * 1982-08-19 1984-02-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt High contrast LCD cell - has rear electrode layer of selected thickness total internal to obtain reflection
DE3413587A1 (en) * 1984-04-11 1985-10-17 Flachglas AG, 8510 Fürth METHOD FOR PRODUCING THE TIN DIOXIDE INTERFERENCE LAYER (S), IN PARTICULAR FROM HEAT-REFLECTING-COATED GLASS DISKS BY REACTIVE MAGNETRONIC SPRAYING, TIN TARGET TO ITS IMPLEMENTATION, AND ALSO ITSELF, AS WELL AS ITSELF
DE3632892A1 (en) * 1986-09-27 1988-04-07 Guenter Nowak Process and its application to continuous adjustment of the transparency of transparent or translucent discs, lenses or foils of glass or plastics
DE29821858U1 (en) * 1998-12-08 2000-01-20 Brinkmann Manfred Glass pane, in particular Thermopane glass

Also Published As

Publication number Publication date
BE761706A (en) 1971-07-19
FR2091956B1 (en) 1973-06-08
NL7100099A (en) 1971-07-21
FR2091956A1 (en) 1971-01-21
DE2102243A1 (en) 1971-07-29
CA957756A (en) 1974-11-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees