GB1520802A - Alignment of dichromophores - Google Patents

Alignment of dichromophores

Info

Publication number
GB1520802A
GB1520802A GB553875A GB553875A GB1520802A GB 1520802 A GB1520802 A GB 1520802A GB 553875 A GB553875 A GB 553875A GB 553875 A GB553875 A GB 553875A GB 1520802 A GB1520802 A GB 1520802A
Authority
GB
United Kingdom
Prior art keywords
layer
sio
dichroic
incidence
degrees
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
GB553875A
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 GB553875A priority Critical patent/GB1520802A/en
Priority to CH150476A priority patent/CH600365A5/xx
Priority to JP1292476A priority patent/JPS51146257A/en
Publication of GB1520802A publication Critical patent/GB1520802A/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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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

Abstract

1520802 Vapour depositing alignment layer for dichroic polarizer STANDARD TELEPHONES & CABLES Ltd 3 Feb 1976 [10 Feb 1975] 5538/75 Heading C7F [Also in Division G2] A dichroic polarizer for a liquid crystal display device is made by evaporating an alignment layer e.g. SiO, SiO 2 , MgF 2 or Ni on to a substrate e.g. glass at an angle of incidence of # 45 degrees and then coating the layer with a layer of dicromophones e.g. metal crystallites or a dichroic dye. The dye may be applied by dipping SiO coated glass in a 3% solution of methylene blue in methanol. Alternatively a 500‹A layer of An may be co-evaporated at 90 degrees incidence with a 1500‹A layer of SiO at 5 degrees incidence. A further aligning layer may be obliquely evaporated on top of the dichroic layer.
GB553875A 1975-02-10 1975-02-10 Alignment of dichromophores Expired GB1520802A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB553875A GB1520802A (en) 1975-02-10 1975-02-10 Alignment of dichromophores
CH150476A CH600365A5 (en) 1975-02-10 1976-02-09
JP1292476A JPS51146257A (en) 1975-02-10 1976-02-10 Liquid crystal polarizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB553875A GB1520802A (en) 1975-02-10 1975-02-10 Alignment of dichromophores

Publications (1)

Publication Number Publication Date
GB1520802A true GB1520802A (en) 1978-08-09

Family

ID=9798069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB553875A Expired GB1520802A (en) 1975-02-10 1975-02-10 Alignment of dichromophores

Country Status (3)

Country Link
JP (1) JPS51146257A (en)
CH (1) CH600365A5 (en)
GB (1) GB1520802A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118210A (en) * 1982-03-12 1983-10-26 Marconi Co Ltd Reflectors for passive display devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820219A1 (en) * 1978-05-09 1979-11-22 Siemens Ag LIQUID CRYSTAL DISPLAY
US4241984A (en) * 1979-06-04 1980-12-30 Timex Corporation Simplified field effect, twisted nematic liquid crystal display construction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA991735A (en) * 1972-04-10 1976-06-22 Ncr Corporation Alignment film for a liquid crystal display cell and method of making same
JPS5412068B2 (en) * 1973-05-17 1979-05-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118210A (en) * 1982-03-12 1983-10-26 Marconi Co Ltd Reflectors for passive display devices

Also Published As

Publication number Publication date
JPS51146257A (en) 1976-12-15
CH600365A5 (en) 1978-06-15

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee