IT1115232B - PLEOCROIC DYES AND DISPLAY SYSTEMS OF THE ELECTRO-OPTIC TYPE OBTAINED WITH THESE DYES - Google Patents

PLEOCROIC DYES AND DISPLAY SYSTEMS OF THE ELECTRO-OPTIC TYPE OBTAINED WITH THESE DYES

Info

Publication number
IT1115232B
IT1115232B IT22892/79A IT2289279A IT1115232B IT 1115232 B IT1115232 B IT 1115232B IT 22892/79 A IT22892/79 A IT 22892/79A IT 2289279 A IT2289279 A IT 2289279A IT 1115232 B IT1115232 B IT 1115232B
Authority
IT
Italy
Prior art keywords
dyes
pleocroic
electro
display systems
type obtained
Prior art date
Application number
IT22892/79A
Other languages
Italian (it)
Other versions
IT7922892A0 (en
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of IT7922892A0 publication Critical patent/IT7922892A0/en
Application granted granted Critical
Publication of IT1115232B publication Critical patent/IT1115232B/en

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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
    • 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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/60—Pleochroic dyes
    • C09K19/603—Anthroquinonic
IT22892/79A 1978-05-23 1979-05-22 PLEOCROIC DYES AND DISPLAY SYSTEMS OF THE ELECTRO-OPTIC TYPE OBTAINED WITH THESE DYES IT1115232B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90867178A 1978-05-23 1978-05-23

Publications (2)

Publication Number Publication Date
IT7922892A0 IT7922892A0 (en) 1979-05-22
IT1115232B true IT1115232B (en) 1986-02-03

Family

ID=25426093

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22892/79A IT1115232B (en) 1978-05-23 1979-05-22 PLEOCROIC DYES AND DISPLAY SYSTEMS OF THE ELECTRO-OPTIC TYPE OBTAINED WITH THESE DYES

Country Status (7)

Country Link
JP (1) JPS54157786A (en)
KR (1) KR850000050B1 (en)
CH (1) CH640259A5 (en)
DE (1) DE2920730A1 (en)
FR (1) FR2426724B1 (en)
GB (1) GB2024844B (en)
IT (1) IT1115232B (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288147A (en) * 1978-12-20 1981-09-08 Timex Corporation Electro-optical composition of the guest-host type
US4273929A (en) * 1979-02-05 1981-06-16 Hoffmann-La Roche Inc. Heterocyclic compounds
US4360447A (en) * 1979-03-16 1982-11-23 Mitsui Toatsu Chemicals, Inc. Composition for liquid crystal color display elements
US4304683A (en) * 1979-03-16 1981-12-08 Mitsui Toatsu Chemicals, Inc. Composition for liquid crystal color display element
WO1981000463A1 (en) * 1979-07-27 1981-02-19 Minnesota Mining & Mfg Display device with dynamic internal polarizer
CH641828A5 (en) * 1979-08-17 1984-03-15 Ebauches Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
CH642393A5 (en) 1979-10-02 1984-04-13 Ebauches Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
GB2065695B (en) * 1979-10-12 1984-07-25 Hitachi Ltd Guest-host type liquid crystal composition and liquid crystal display device using the same
JPS56117507U (en) * 1980-02-12 1981-09-08
DE3007198A1 (en) * 1980-02-26 1981-09-03 Siemens AG, 1000 Berlin und 8000 München PLEOCHROITIC ANTHRACHINONE DYE, METHOD FOR THE PRODUCTION THEREOF AND USE OF THE DYE
CH646452A5 (en) * 1980-03-14 1984-11-30 Asulab Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
CH643291A5 (en) * 1980-03-21 1984-05-30 Asulab Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
DE3014933A1 (en) * 1980-04-18 1981-10-29 Bayer Ag, 5090 Leverkusen LIQUID CRYSTAL MATERIALS CONTAINING ANTHRACHINONE DYES
US4394070A (en) * 1980-07-16 1983-07-19 Minnesota Mining And Manufacturing Company Helichromic compounds and displays
US4405211A (en) * 1980-07-29 1983-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal compositions with pleochroic anthraquinone dyes
US4391489A (en) * 1980-07-29 1983-07-05 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal materials containing pleochroic anthraquinone dyes
JPS5755984A (en) * 1980-09-22 1982-04-03 Hitachi Ltd Liquid crystal composition
US4624532A (en) * 1980-10-22 1986-11-25 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
US4356102A (en) * 1980-10-22 1982-10-26 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
DE3040102A1 (en) * 1980-10-24 1982-06-03 Merck Patent Gmbh, 6100 Darmstadt DICHROITIC ANTHRACHINONE DYES, THIS CONTAINING LIQUID CRYSTALINE DIELECTRICS AND ELECTRO-OPTICAL DISPLAY ELEMENT
DE3046904A1 (en) * 1980-12-12 1982-07-15 Bayer Ag, 5090 Leverkusen ANTHRACHINONE DYES, METHOD FOR THE PRODUCTION THEREOF, AND THE USE OF LIQUID CRYSTAL MATERIALS CONTAINING ANTHRACHINONE DYES
DE3167759D1 (en) * 1981-01-10 1985-01-24 Basf Ag Dyes for liquid crystal mixtures
DE3201120A1 (en) * 1981-01-17 1982-10-21 Hitachi, Ltd., Tokyo LIQUID CRYSTAL COMPOSITION
GB2091753B (en) * 1981-01-23 1984-08-22 Standard Telephones Cables Ltd Use of 1,4-b15 (hydrocarbylamino) anthraquinos as dyes in the smetic layers of a liquid crystal cell
GB2093475B (en) * 1981-02-25 1985-10-09 Secr Defence Liquid crystal materials containing pleochroic dithioanthraquinone dyes
US4464282A (en) * 1981-02-25 1984-08-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britian And Northern Ireland Organic materials
US4446047A (en) * 1981-02-25 1984-05-01 Imperial Chemical Industries Plc Pleochroic anthraquinone dyes
EP0059036B1 (en) * 1981-02-25 1987-07-29 Imperial Chemical Industries Plc Pleochroic anthraquinone dyes
US4514045A (en) * 1981-06-22 1985-04-30 Minnesota Mining And Manufacturing Company Helichromic-smectic liquid crystal compositions and display cells
JPS5825381A (en) * 1981-08-08 1983-02-15 Nippon Kanko Shikiso Kenkyusho:Kk Liquid crystal composition
DE3137298A1 (en) * 1981-09-18 1983-04-14 Bayer Ag, 5090 Leverkusen ANTHRACHINONE DYES
JPS5857488A (en) * 1981-10-02 1983-04-05 Mitsubishi Chem Ind Ltd Guest/host type liquid crystal composition
DE3309045A1 (en) * 1982-03-13 1983-09-15 Kabushiki Kaisha Nippon Kanko Shikiso Kenkyusho, Okayama DICHROITIC DYES FOR LIQUID CRYSTALS AND LIQUID CRYSTAL COMPOSITIONS
GB2118203B (en) * 1982-04-07 1985-10-02 Secr Defence Guest-host liquid crystal mixtures with anthraquinone dyes
GB2122632B (en) * 1982-04-07 1985-11-13 Ici Plc Anthraquinone compounds
DE3380031D1 (en) * 1982-06-30 1989-07-13 Hitachi Ltd Liquid crystal composition
DE3240036A1 (en) * 1982-10-28 1984-05-10 Lev Michajlovič Moskva Blinov Anthraquinone derivatives, their preparation, and their use in liquid crystal materials for electrooptical apparatuses
US4448492A (en) * 1982-12-23 1984-05-15 Minnesota Mining And Manufacturing Company Cycloalkyl-type isotropic dyes for liquid crystal display devices
US4530572A (en) * 1982-12-30 1985-07-23 Minnesota Mining And Manufacturing Company Substituted anthraquinone-type isotropic dyes for liquid crystal display devices
US4452511A (en) * 1982-12-30 1984-06-05 Minnesota Mining And Manufacturing Company Substituted anthracene-type isotropic dyes for liquid crystal display devices
JPS59182878A (en) * 1983-04-01 1984-10-17 Hitachi Ltd Liquid crystal composition
JPS61276884A (en) * 1985-05-31 1986-12-06 Mitsubishi Chem Ind Ltd Production of colored liquid crystal
JPH03128763A (en) * 1989-10-13 1991-05-31 Mazda Motor Corp Automotive steering device
JP3537265B2 (en) * 1996-05-08 2004-06-14 チッソ株式会社 Liquid crystal composition and liquid crystal display device
WO2015157983A1 (en) * 2014-04-18 2015-10-22 Dow Global Technologies Llc Anthraquinone compound used for color filter of lcd

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942287B2 (en) * 1972-12-19 1984-10-13 松下電器産業株式会社 Hue modulation display device
US3960751A (en) * 1973-09-19 1976-06-01 Matsushita Electric Industrial Co., Ltd. Electro-optical display element
EP0002104B1 (en) * 1977-10-14 1982-10-20 BDH Chemicals Limited Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications

Also Published As

Publication number Publication date
GB2024844B (en) 1983-03-30
FR2426724A1 (en) 1979-12-21
CH640259A5 (en) 1983-12-30
KR850000050B1 (en) 1985-02-14
DE2920730C2 (en) 1990-04-12
FR2426724B1 (en) 1985-09-27
JPH0116876B2 (en) 1989-03-28
GB2024844A (en) 1980-01-16
IT7922892A0 (en) 1979-05-22
JPS54157786A (en) 1979-12-12
DE2920730A1 (en) 1979-11-29

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