GB1533469A - Liquid crystal display cells - Google Patents

Liquid crystal display cells

Info

Publication number
GB1533469A
GB1533469A GB3489576A GB3489576A GB1533469A GB 1533469 A GB1533469 A GB 1533469A GB 3489576 A GB3489576 A GB 3489576A GB 3489576 A GB3489576 A GB 3489576A GB 1533469 A GB1533469 A GB 1533469A
Authority
GB
United Kingdom
Prior art keywords
inclination
crystal display
cell
liquid crystal
display cells
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
GB3489576A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3489576A priority Critical patent/GB1533469A/en
Priority to FR7724892A priority patent/FR2362089A1/en
Priority to DE19772736700 priority patent/DE2736700A1/en
Priority to JP9791577A priority patent/JPS5351761A/en
Priority to CH1018877A priority patent/CH620035A5/en
Publication of GB1533469A publication Critical patent/GB1533469A/en
Expired 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)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)

Abstract

In a twisted nematic liquid-crystal display cell, a specific inclination of the nematic director is necessary on the inner surface at least of one of the glass plates (1, 2) forming the cell, in order to evade problems of inverse inclination. A five-degree oblique vapour deposition of SiO delivers an excessively large inclination and slows the response time of the cell. The angle of inclination is reduced by coating the five-degree oblique vapour deposition with the aid of a surface treating agent which produces a homogeneous orientation. <IMAGE>
GB3489576A 1976-08-17 1976-08-20 Liquid crystal display cells Expired GB1533469A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3489576A GB1533469A (en) 1976-08-20 1976-08-20 Liquid crystal display cells
FR7724892A FR2362089A1 (en) 1976-08-17 1977-08-12 Liq. crystal indicator cells - using one or two films of silicon mon:oxide for surface alignment of liq. crystal
DE19772736700 DE2736700A1 (en) 1976-08-17 1977-08-16 Nematic liquid crystal cell - has substance reducing angle of inclination at interface between the compsn. and coated glass plates defining the cell
JP9791577A JPS5351761A (en) 1976-08-17 1977-08-17 Liquid crystal display cell
CH1018877A CH620035A5 (en) 1976-08-20 1977-08-19 Twisted nematic liquid-crystal display cell and method for producing it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3489576A GB1533469A (en) 1976-08-20 1976-08-20 Liquid crystal display cells

Publications (1)

Publication Number Publication Date
GB1533469A true GB1533469A (en) 1978-11-22

Family

ID=10371243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3489576A Expired GB1533469A (en) 1976-08-17 1976-08-20 Liquid crystal display cells

Country Status (2)

Country Link
CH (1) CH620035A5 (en)
GB (1) GB1533469A (en)

Also Published As

Publication number Publication date
CH620035A5 (en) 1980-10-31

Similar Documents

Publication Publication Date Title
EP0228472A4 (en) Liquid crystal display device.
EP0350075A3 (en) Liquid crystal display device
DE3853738D1 (en) Liquid crystal display device.
JPS5697318A (en) Liquid-crystal display element
JPS5588027A (en) Positive type guest-host type liquid crystal display element
EP0376029A3 (en) Black/white liquid-crystal display
GB1533469A (en) Liquid crystal display cells
HK4686A (en) Liquid crystal display device
CH611434A5 (en) Process for manufacturing a liquid-crystal cell and a cell resulting from this process
JPS56111836A (en) Liquid-crystal display element
JPS5651722A (en) Liquid crystal display device
JPS54120596A (en) Liquid-crystal display unit
JPS5640809A (en) Liquid crystal display device
JPS5781238A (en) Liquid crystal display device
MY113167A (en) Color liquid crystal display device and liquid crystal display apparatus
JPS55110218A (en) Display cell
JPS5270854A (en) Liquid crystal indication device
JPS5744123A (en) Liquid-crystal display device
JPS55142317A (en) Liquid crystal arraying method
JPS56164320A (en) Treatment of liquid crystal orientation
GB2013954A (en) Liquid crystal display device
JPS64516A (en) Liquid crystal element
JPS5595929A (en) Twisted nematic type liquid crystal display device
JPS5319848A (en) Panel glass for liquid crystal display
JPS5699318A (en) Orientation treatment of liquid crystal cell substrate

Legal Events

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