IT7922892A0 - Coloranti pleocroici e sistemi visualizzatori del tipo elettro-ottico ottenuti con detti coloranti. - Google Patents

Coloranti pleocroici e sistemi visualizzatori del tipo elettro-ottico ottenuti con detti coloranti.

Info

Publication number
IT7922892A0
IT7922892A0 IT7922892A IT2289279A IT7922892A0 IT 7922892 A0 IT7922892 A0 IT 7922892A0 IT 7922892 A IT7922892 A IT 7922892A IT 2289279 A IT2289279 A IT 2289279A IT 7922892 A0 IT7922892 A0 IT 7922892A0
Authority
IT
Italy
Prior art keywords
dyes
pleocroic
electro
systems obtained
displaying systems
Prior art date
Application number
IT7922892A
Other languages
English (en)
Other versions
IT1115232B (it
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/it
Application granted granted Critical
Publication of IT1115232B publication Critical patent/IT1115232B/it

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
IT22892/79A 1978-05-23 1979-05-22 Coloranti pleocroici e sistemi visualizzatori del tipo elettro-ottico ottenuti con detti coloranti IT1115232B (it)

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 true IT7922892A0 (it) 1979-05-22
IT1115232B IT1115232B (it) 1986-02-03

Family

ID=25426093

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22892/79A IT1115232B (it) 1978-05-23 1979-05-22 Coloranti pleocroici e sistemi visualizzatori del tipo elettro-ottico ottenuti con detti coloranti

Country Status (7)

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

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
JPS56500944A (it) * 1979-07-27 1981-07-09
CH641828A5 (fr) * 1979-08-17 1984-03-15 Ebauches Sa Composition a base de cristal liquide pour dispositif electro-optique.
CH642393A5 (fr) 1979-10-02 1984-04-13 Ebauches Sa Composition a base de cristal liquide pour dispositif electro-optique.
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 (it) * 1980-02-12 1981-09-08
DE3007198A1 (de) * 1980-02-26 1981-09-03 Siemens AG, 1000 Berlin und 8000 München Pleochroitischer anthrachinon-farbstoff, verfahren zu seiner herstellung und verwendung des farbstoffs
CH646452A5 (fr) * 1980-03-14 1984-11-30 Asulab Sa Composition a base de cristal liquide pour dispositif electro-optique.
CH643291A5 (fr) * 1980-03-21 1984-05-30 Asulab Sa Composition a base de cristal liquide pour dispositif electro-optique.
DE3014933A1 (de) * 1980-04-18 1981-10-29 Bayer Ag, 5090 Leverkusen Fluessigkristalline materialien enthaltend anthrachinonfarbstoffe
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 (de) * 1980-10-24 1982-06-03 Merck Patent Gmbh, 6100 Darmstadt Dichroitische anthrachinonfarbstoffe, diese enthaltende fluessigkristalline dielektrika und elektrooptisches anzeigeelement
DE3046904A1 (de) * 1980-12-12 1982-07-15 Bayer Ag, 5090 Leverkusen Anthrachinonfarbstoffe, verfahren zu ihrer herstellung ihre verwendung sowie fluessigkristalline materialien enthaltend anthrachinonfarbstoffe
EP0056492B1 (de) * 1981-01-10 1984-12-12 BASF Aktiengesellschaft Farbstoffe für Flüssigkristallmischungen
GB2094825B (en) * 1981-01-17 1984-09-12 Mitsubishi Chem Ind Liquid crystal compositions containing pleochroic anthraquinone dyes
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
US4446047A (en) * 1981-02-25 1984-05-01 Imperial Chemical Industries Plc Pleochroic anthraquinone dyes
EP0155345B1 (en) * 1981-02-25 1988-02-03 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Pleochroic anthraquinone dyes
DE3276868D1 (de) * 1981-02-25 1987-09-03 Ici Plc Pleochroic anthraquinone 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
US4514045A (en) * 1981-06-22 1985-04-30 Minnesota Mining And Manufacturing Company Helichromic-smectic liquid crystal compositions and display cells
JPS5825381A (ja) * 1981-08-08 1983-02-15 Nippon Kanko Shikiso Kenkyusho:Kk 液晶組成物
DE3137298A1 (de) * 1981-09-18 1983-04-14 Bayer Ag, 5090 Leverkusen Anthrachinonfarbstoffe
JPS5857488A (ja) * 1981-10-02 1983-04-05 Mitsubishi Chem Ind Ltd ゲスト−ホスト型液晶組成物
FR2523147B1 (fr) * 1982-03-13 1987-02-27 Nippon Kanko Shikiso Kenkyusho Colorants dichroiques pour cristaux liquides et compositions de cristaux liquides
GB2122632B (en) * 1982-04-07 1985-11-13 Ici Plc Anthraquinone compounds
EP0091226B1 (en) * 1982-04-07 1986-10-01 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Dielectric materials
US4588517A (en) * 1982-06-30 1986-05-13 Hitachi, Ltd. Liquid crystal composition
DE3240036A1 (de) * 1982-10-28 1984-05-10 Lev Michajlovič Moskva Blinov Anthrachinonderivate, verfahren zu ihrer herstellung und ihre verwendung in fluesigkristallmaterialien fuer elektrooptische vorrichtungen
US4448492A (en) * 1982-12-23 1984-05-15 Minnesota Mining And Manufacturing Company Cycloalkyl-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
US4530572A (en) * 1982-12-30 1985-07-23 Minnesota Mining And Manufacturing Company Substituted anthraquinone-type isotropic dyes for liquid crystal display devices
JPS59182878A (ja) * 1983-04-01 1984-10-17 Hitachi Ltd ゲスト―　ホスト型液晶組成物
JPS61276884A (ja) * 1985-05-31 1986-12-06 Mitsubishi Chem Ind Ltd カラ−液晶の製造法
JPH03128763A (ja) * 1989-10-13 1991-05-31 Mazda Motor Corp 自動車のステアリング装置
JP3537265B2 (ja) * 1996-05-08 2004-06-14 チッソ株式会社 液晶組成物および液晶表示素子
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 (ja) * 1972-12-19 1984-10-13 松下電器産業株式会社 色相変調表示装置
US3960751A (en) * 1973-09-19 1976-06-01 Matsushita Electric Industrial Co., Ltd. Electro-optical display element
DE2862064D1 (en) * 1977-10-14 1982-11-25 Bdh Chemicals Ltd Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications

Also Published As

Publication number Publication date
JPS54157786A (en) 1979-12-12
FR2426724B1 (fr) 1985-09-27
JPH0116876B2 (it) 1989-03-28
DE2920730A1 (de) 1979-11-29
KR850000050B1 (ko) 1985-02-14
GB2024844B (en) 1983-03-30
GB2024844A (en) 1980-01-16
IT1115232B (it) 1986-02-03
FR2426724A1 (fr) 1979-12-21
CH640259A5 (de) 1983-12-30
DE2920730C2 (it) 1990-04-12

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