[go: up one dir, main page]

FR2407973A1 - Melange formant des cristaux liquides et dispositif le contenant - Google Patents

Melange formant des cristaux liquides et dispositif le contenant

Info

Publication number
FR2407973A1
FR2407973A1 FR7830888A FR7830888A FR2407973A1 FR 2407973 A1 FR2407973 A1 FR 2407973A1 FR 7830888 A FR7830888 A FR 7830888A FR 7830888 A FR7830888 A FR 7830888A FR 2407973 A1 FR2407973 A1 FR 2407973A1
Authority
FR
France
Prior art keywords
type
mixture forming
liquid crystals
forming liquid
containing device
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.)
Granted
Application number
FR7830888A
Other languages
English (en)
Other versions
FR2407973B1 (fr
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.)
UK Government
Original Assignee
UK Government
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 UK Government filed Critical UK Government
Publication of FR2407973A1 publication Critical patent/FR2407973A1/fr
Application granted granted Critical
Publication of FR2407973B1 publication Critical patent/FR2407973B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal Substances (AREA)
  • Liquid Crystal (AREA)

Abstract

L'INVENTION CONCERNE LES MATIERES CRISTALLINES LIQUIDES. ELLE SE RAPPORTE A UN MELANGE FORMANT UNE MATIERE A CRISTAUX LIQUIDES COMPRENANT UNE MATIERE D'UN TYPE A ET UNE MATIERE D'UN TYPE B, LA MATIERE DE TYPE A PRESENTANT DES TRANSITIONS DU TYPE CRISTAL-PHASE DE TRAVAIL-ISOTROPE ET LA MATIERE DE TYPE B DES TRANSITIONS DU TYPE CRISTAL-PHASE DE TRAVAIL-SMECTIQUE-PHASE DE TRAVAIL-ISOTROPE, LA PHASE DE TRAVAIL ETANT NEMATIQUE OU CHOLESTERIQUE. LA TENSION DE SEUIL VARIE PEU SUR UNE LARGE PLAGE DE TEMPERATURES. APPLICATION AUX DISPOSITIFS D'AFFICHAGE A CRISTAUX LIQUIDES.
FR7830888A 1977-11-02 1978-10-31 Melange formant des cristaux liquides et dispositif le contenant Granted FR2407973A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4562777 1977-11-02

Publications (2)

Publication Number Publication Date
FR2407973A1 true FR2407973A1 (fr) 1979-06-01
FR2407973B1 FR2407973B1 (fr) 1984-01-13

Family

ID=10437946

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7830888A Granted FR2407973A1 (fr) 1977-11-02 1978-10-31 Melange formant des cristaux liquides et dispositif le contenant

Country Status (7)

Country Link
US (1) US4227778A (fr)
JP (1) JPS5475484A (fr)
CH (1) CH638827A5 (fr)
DE (1) DE2847601A1 (fr)
FR (1) FR2407973A1 (fr)
GB (1) GB2009219B (fr)
HK (1) HK100185A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004324A1 (fr) * 1985-01-22 1986-07-31 MERCK Patent Gesellschaft mit beschränkter Haftung Compositions de cristaux liquides a phase smectique a

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291948A (en) * 1977-11-10 1981-09-29 International Standard Electric Corporation Liquid crystal display incorporating positive and negative smectic material
DE2827471C2 (de) * 1978-06-22 1982-09-02 Siemens AG, 1000 Berlin und 8000 München Flüssigkristallzelle mit einer induzierten cholesterischen Phase
US4261652A (en) * 1978-08-04 1981-04-14 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal compounds and materials and devices containing them
DE2966302D1 (en) * 1978-09-13 1983-11-17 Secr Defence Brit Improvements in or relating to liquid crystal materials and devices
DE3006666A1 (de) * 1980-02-22 1981-09-17 Merck Patent Gmbh, 6100 Darmstadt Phenylcyclohexenderivate, verfahren zu ihrer herstellung, diese enthaltende fluessigkristalline dielektrika und elektrooptisches anzeieelement
JPS574960A (en) * 1980-06-09 1982-01-11 Chisso Corp 4'''-cyanobiphenyl trans-4-(trans-4'-alkylcyclohexyl)- cyclohexanecarboxylate
JPS5721359A (en) * 1980-07-15 1982-02-04 Chisso Corp 4'''-cyano-4"-biphenylyl 4-(trans-4'-alkylcyclohexyl)benzoate
FR2490666A1 (fr) * 1980-08-29 1982-03-26 Thomson Csf Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide
EP0050433B1 (fr) * 1980-10-07 1987-01-07 National Research Development Corporation Dispositifs indicateurs de température
DE3221462A1 (de) * 1981-06-18 1983-01-05 F. Hoffmann-La Roche & Co AG, 4002 Basel Fluessigkristallines gemisch
JPS588779A (ja) * 1981-07-08 1983-01-18 Hitachi Ltd 液晶表示装置
FR2511798A1 (fr) * 1981-08-21 1983-02-25 Thomson Csf Dispositif de visualisation a cristal liquide smectique
JPS58140045A (ja) * 1982-02-15 1983-08-19 Kanto Kagaku Kk 液晶化合物，液晶組成物並びに液晶表示素子
JPS58173718A (ja) * 1982-04-07 1983-10-12 Hitachi Ltd 液晶光変調素子およびその製造方法
JPS60112741A (ja) * 1983-11-24 1985-06-19 Hitachi Ltd 液晶性化合物，液晶組成物及び液晶表示素子
GB8515510D0 (en) * 1985-06-19 1985-07-24 Secr Defence Thermochromic liquid crystal materials
JP5403553B2 (ja) * 2010-01-05 2014-01-29 株式会社ジャパンディスプレイ 液晶表示装置及びその駆動方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974087A (en) * 1973-10-17 1976-08-10 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
US4035056A (en) * 1975-04-22 1977-07-12 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Biphenyl derivative compounds and liquid crystal materials and devices containing such compounds
US4077260A (en) * 1975-09-03 1978-03-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Optically active cyano-biphenyl compounds and liquid crystal materials containing them
FR2372453A1 (fr) * 1976-11-25 1978-06-23 United Kingdom Government Dispositif a cristaux liquides peu sensible aux variations de temperature
US4113647A (en) * 1976-08-13 1978-09-12 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystalline materials
US4119558A (en) * 1976-08-13 1978-10-10 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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207758A1 (en) * 1972-11-09 1974-06-21 United Kingdom Government Liquid crystal material - comprising two or more benzene rings para substd at both ends of the chain
GB1433130A (en) * 1972-11-09 1976-04-22 Secr Defence Substituted biphenyl and polyphenyl compounds and liquid crystal materials and devices containing them
DD105701A1 (fr) * 1973-07-02 1974-05-05
US4137192A (en) * 1974-01-25 1979-01-30 Canon Kabushiki Kaisha Liquid crystalline composition
FR2274355A1 (fr) * 1974-06-14 1976-01-09 Thomson Csf Melange de cristaux liquides presentant une anisotropie dielectrique positive et une large gamme de mesomorphisme
DE2538865A1 (de) * 1974-09-03 1976-03-11 Beckman Instruments Inc Nematische fluessigkristallmassen
US4147651A (en) * 1974-09-03 1979-04-03 Beckman Instruments, Inc. Biphenyl based liquid crystal compositions
US4069167A (en) * 1974-09-25 1978-01-17 Chisso Corporation Liquid crystal composition
DE2545121C3 (de) * 1974-10-11 1979-09-06 Chisso Corp., Osaka (Japan) p-CyanophenyM-alkyW -biphenylcarboxylate und Verfahren zu ihrer Herstellung
FR2288732A1 (fr) * 1974-10-22 1976-05-21 Merck Patent Gmbh Nouveaux esters biphenyliques, procede pour leur preparation et application comme constituants de cristaux liquides
DE2541312C3 (de) * 1975-09-16 1978-10-12 Chisso Corp., Osaka (Japan) Flüssige Kristallzusammensetzungen
DE2557267A1 (de) * 1975-12-19 1977-06-30 Bbc Brown Boveri & Cie Fluessigkristallsubstanz
GB1596012A (en) * 1976-08-16 1981-08-19 Secr Defence Optically active liquid crystal materials and liquid crystal devices containing them
US4120567A (en) * 1977-02-11 1978-10-17 Rca Corporation Electro-optic device
DD132591A1 (de) * 1977-08-31 1978-10-11 Dietrich Demus Nematische fluessig-kristalline gemische

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974087A (en) * 1973-10-17 1976-08-10 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
US4035056A (en) * 1975-04-22 1977-07-12 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Biphenyl derivative compounds and liquid crystal materials and devices containing such compounds
US4077260A (en) * 1975-09-03 1978-03-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Optically active cyano-biphenyl compounds and liquid crystal materials containing them
US4113647A (en) * 1976-08-13 1978-09-12 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystalline materials
US4119558A (en) * 1976-08-13 1978-10-10 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
FR2372453A1 (fr) * 1976-11-25 1978-06-23 United Kingdom Government Dispositif a cristaux liquides peu sensible aux variations de temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004324A1 (fr) * 1985-01-22 1986-07-31 MERCK Patent Gesellschaft mit beschränkter Haftung Compositions de cristaux liquides a phase smectique a

Also Published As

Publication number Publication date
GB2009219B (en) 1982-04-28
FR2407973B1 (fr) 1984-01-13
US4227778A (en) 1980-10-14
JPS5475484A (en) 1979-06-16
HK100185A (en) 1985-12-27
GB2009219A (en) 1979-06-13
CH638827A5 (de) 1983-10-14
DE2847601A1 (de) 1979-05-03

Similar Documents

Publication Publication Date Title
FR2407973A1 (fr) Melange formant des cristaux liquides et dispositif le contenant
DE68925987D1 (de) Mesomorphe Verbindung, diese enthaltende ferroelektrische Flüssigkristall-Zusammensetzung und ferroelektrische Flüssigkristall-Vorrichtung
ATE82999T1 (de) Thiazol- und thiadiazol-derivate enthaltende medien mit smektischer fluessigkristalliner phase.
TW369560B (en) Ferroelectric liquid crystal mixtures
FR2449720A1 (fr) Composition pour cristaux liquides renfermant un colorant pleochroique et dispositif electro-optique contenant cette composition
EP0172690A3 (fr) Capteur d'image thermique
JPS5534206A (en) Nematic liquid crystal for display unit
FR2372453A1 (fr) Dispositif a cristaux liquides peu sensible aux variations de temperature
DE69310562D1 (de) Mesomorphe Verbindung, flüssigkristalline Zusammensetzung, flüssigkristalline Vorrichtung, Display-Apparat und Display-Methode
JPS5333092A (en) Liquid crystal display element
GB1472836A (en) Nematic liquid crystal substances containing schiff bases derived from 2-substituted-1,4-phenylene-diamine
JPS5714822A (en) Liquid crystal display device
GB1410161A (en) Apparatus comprinsing an electro-optical device comprising a layer of nematic liquid crystal material
FR2444704A1 (fr) Composition de cristaux liquides et dispositif d'affichage electro-optique la contenant
JPS56162718A (en) Liquid crystal display element
JPS5344489A (en) Nematic liquid crystal composition
JPS52107286A (en) Nematic liquid crystal composition
JPS5318486A (en) Twist nematic liquid crystal composition
JPS57141478A (en) Liquid crystal mixture
JPS51145478A (en) Fet type liquid crystal displaying unit
JPS5352140A (en) Liquid crystal display device
JPS54155796A (en) Driving method for phase-transition type liquid-crystal display unit
JPS5297379A (en) Liquid crystal composition
JPS5948038B2 (ja) 表示体
JPS5318487A (en) Twist nematic liquid crystal composition

Legal Events

Date Code Title Description
ST Notification of lapse