FR2294223A1 - ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT - Google Patents

ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT

Info

Publication number
FR2294223A1
FR2294223A1 FR7441234A FR7441234A FR2294223A1 FR 2294223 A1 FR2294223 A1 FR 2294223A1 FR 7441234 A FR7441234 A FR 7441234A FR 7441234 A FR7441234 A FR 7441234A FR 2294223 A1 FR2294223 A1 FR 2294223A1
Authority
FR
France
Prior art keywords
alkyl
pref
benzylidene
electro
crystal element
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
FR7441234A
Other languages
French (fr)
Other versions
FR2294223B1 (en
Inventor
Kenji Nakamura
Toshio Jinnai
Kazuo Totani
Shigetaro Furuta
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.)
Dai Nippon Toryo Co Ltd
Original Assignee
Dai Nippon Toryo Co Ltd
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 Dai Nippon Toryo Co Ltd filed Critical Dai Nippon Toryo Co Ltd
Priority to FR7441234A priority Critical patent/FR2294223A1/en
Publication of FR2294223A1 publication Critical patent/FR2294223A1/en
Application granted granted Critical
Publication of FR2294223B1 publication Critical patent/FR2294223B1/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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/56—Aligning agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B55/00—Azomethine dyes
    • C09B55/001—Azomethine dyes forming a 1,2 complex metal compound, e.g. with Co or Cr, with an other dye, e.g. with an azo or azomethine dye
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

Electro-optical liq. crystal element, contg. a nematic liq. crystal matl. with +ve dielectric anistropty, consists of one or more p-n-alkyl-benzylidene-p'-cyanoanilines, pref. having formula p-NC-C6H4-N=CH-C6H4-p-R (I) (where R is 3-6C n-alkyl), and one or more p-n-alkyl-cyanobenzenes, (II) (pref. in whch n-alkyl contains 3-6C) and/or p-alkyl-benzylidene-p'-alkoxy-anilines, pref. having formula p-R"2-O-C6H4-N=CH-C6H4-p-R'3, (III), (where R"2 and R'3 are Me, Et or 3-8 n-alkyl) and/or p-alkoxy-benzylidene-p'-n-alkyl anilines, (IV), (pref. contg. MeO or EtO and n-butyl or n-heptyl gps.). The elements are useful as indicator devices esp. of twist-nematic type for electronic clocks and multiplex driver systems. Elements with twist effect have a reduced operational voltage.
FR7441234A 1974-12-13 1974-12-13 ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT Granted FR2294223A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7441234A FR2294223A1 (en) 1974-12-13 1974-12-13 ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7441234A FR2294223A1 (en) 1974-12-13 1974-12-13 ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT

Publications (2)

Publication Number Publication Date
FR2294223A1 true FR2294223A1 (en) 1976-07-09
FR2294223B1 FR2294223B1 (en) 1978-05-12

Family

ID=9146167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441234A Granted FR2294223A1 (en) 1974-12-13 1974-12-13 ELECTRO-OPTICAL LIQUID CRYSTAL ELEMENT

Country Status (1)

Country Link
FR (1) FR2294223A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179841A1 (en) * 1972-04-10 1973-11-23 Ncr Co
FR2202731A1 (en) * 1972-10-17 1974-05-10 Matsushita Electric Ind Co Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179841A1 (en) * 1972-04-10 1973-11-23 Ncr Co
FR2202731A1 (en) * 1972-10-17 1974-05-10 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
FR2294223B1 (en) 1978-05-12

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Legal Events

Date Code Title Description
ST Notification of lapse