CA971260A - Electro-optical light modulation cell - Google Patents

Electro-optical light modulation cell

Info

Publication number
CA971260A
CA971260A CA147,037A CA147037A CA971260A CA 971260 A CA971260 A CA 971260A CA 147037 A CA147037 A CA 147037A CA 971260 A CA971260 A CA 971260A
Authority
CA
Canada
Prior art keywords
electro
light modulation
optical light
modulation cell
cell
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
CA147,037A
Other versions
CA147037S (en
Inventor
Hanspeter Scherrer
Arthur Boller
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Application granted granted Critical
Publication of CA971260A publication Critical patent/CA971260A/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 
    • G02F1/07—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 electro-optical liquids exhibiting Kerr effect
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/22—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases
CA147,037A 1971-07-16 1972-07-13 Electro-optical light modulation cell Expired CA971260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1048271A CH540500A (en) 1971-07-16 1971-07-16 Electro-optical light control cell

Publications (1)

Publication Number Publication Date
CA971260A true CA971260A (en) 1975-07-15

Family

ID=4363711

Family Applications (2)

Application Number Title Priority Date Filing Date
CA145,056A Expired CA971259A (en) 1971-07-16 1972-06-19 Electro-optical light modulation cell
CA147,037A Expired CA971260A (en) 1971-07-16 1972-07-13 Electro-optical light modulation cell

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA145,056A Expired CA971259A (en) 1971-07-16 1972-06-19 Electro-optical light modulation cell

Country Status (7)

Country Link
CA (2) CA971259A (en)
CH (1) CH540500A (en)
DD (1) DD99449A5 (en)
DE (1) DE2234522A1 (en)
FR (1) FR2146277B1 (en)
GB (1) GB1395795A (en)
NL (1) NL7209780A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058477A (en) * 1972-02-23 1977-11-15 Hoffmann-La Roche Inc. Liquid crystal Schiffs bases
US4058478A (en) * 1972-02-23 1977-11-15 Hoffmann-La Roche Inc. Liquid crystal esters
CH577178A5 (en) * 1973-04-04 1976-06-30 Hoffmann La Roche
US4061587A (en) * 1973-12-17 1977-12-06 Hoffmann-La Roche Inc. Liquid crystalline cinnamic acid esters
GB8610681D0 (en) * 1986-05-01 1986-06-04 Secr Defence Electro-optical devices
DE10241301A1 (en) * 2002-09-04 2004-03-18 Merck Patent Gmbh Electrooptic light control element and display and medium for television and computer screens has temperature driven control mechanism

Also Published As

Publication number Publication date
NL7209780A (en) 1973-01-18
CA971259A (en) 1975-07-15
DD99449A5 (en) 1973-08-05
GB1395795A (en) 1975-05-29
CH540500A (en) 1973-08-15
DE2234522A1 (en) 1973-01-25
FR2146277B1 (en) 1976-08-06
FR2146277A1 (en) 1973-03-02

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