JPS5670080A - Liquid crystal composition - Google Patents

Liquid crystal composition

Info

Publication number
JPS5670080A
JPS5670080A JP14446679A JP14446679A JPS5670080A JP S5670080 A JPS5670080 A JP S5670080A JP 14446679 A JP14446679 A JP 14446679A JP 14446679 A JP14446679 A JP 14446679A JP S5670080 A JPS5670080 A JP S5670080A
Authority
JP
Japan
Prior art keywords
liquid crystal
formula
nematic liquid
sulfonic acid
compound
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.)
Pending
Application number
JP14446679A
Other languages
Japanese (ja)
Inventor
Shuji Imazeki
Akio Kobi
Yasusada Morishita
Seiichi Imahori
Masaharu Kaneko
Hitoshi Ono
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.)
Hitachi Ltd
Mitsubishi Kasei Corp
Original Assignee
Hitachi Ltd
Mitsubishi Kasei Corp
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 Hitachi Ltd, Mitsubishi Kasei Corp filed Critical Hitachi Ltd
Priority to JP14446679A priority Critical patent/JPS5670080A/en
Publication of JPS5670080A publication Critical patent/JPS5670080A/en
Pending legal-status Critical Current

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  • Liquid Crystal (AREA)

Abstract

PURPOSE: A guest-host type liquid crystal composition, having a high order parameter and extinction coefficient and improved stability, solubility and electrical characteristics, and comprising a nematic liquid crystal and an anthraquinone dye expressed by a specific structural formula.
CONSTITUTION: A composition comprising (A) a nematic liquid crystal, e.g. phenylcyclohexane type, and (B) a chiral nematic compound, e.g. a compound having 2-methylbutyl group introduced into a nematic liquid crystal, as an optically active substance, and (C) one or more types of anthraquionone dyes expressed by formula I (R1 is H, alkyl, alkoxyl, etc.) as a multicolor dye. The component (C) is obtained by reacting sodium 1-amino-4-bromoanthraquinone-2-sulfonate with aniline, etc., and removing the sulfonic acid group from the resultant 1,4- diaminoanthraquinone-2-sulfonic acid derivative of formula II (R is the same as in formula I).
COPYRIGHT: (C)1981,JPO&Japio
JP14446679A 1979-11-09 1979-11-09 Liquid crystal composition Pending JPS5670080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14446679A JPS5670080A (en) 1979-11-09 1979-11-09 Liquid crystal composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14446679A JPS5670080A (en) 1979-11-09 1979-11-09 Liquid crystal composition

Publications (1)

Publication Number Publication Date
JPS5670080A true JPS5670080A (en) 1981-06-11

Family

ID=15362924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14446679A Pending JPS5670080A (en) 1979-11-09 1979-11-09 Liquid crystal composition

Country Status (1)

Country Link
JP (1) JPS5670080A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790081A (en) * 1980-11-27 1982-06-04 Canon Inc Liquid crystal display device
JPS57164182A (en) * 1981-04-01 1982-10-08 Nec Corp Dyestuff/liquid crystal mixture used for colored liquid crystal display element
KR100442307B1 (en) * 2001-03-01 2004-07-30 가부시끼가이샤 도시바 Guest-Host Liquid Crystal Composition And Guest-Host Liquid Crystal Display Device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790081A (en) * 1980-11-27 1982-06-04 Canon Inc Liquid crystal display device
JPH0138834B2 (en) * 1980-11-27 1989-08-16 Canon Kk
JPS57164182A (en) * 1981-04-01 1982-10-08 Nec Corp Dyestuff/liquid crystal mixture used for colored liquid crystal display element
KR100442307B1 (en) * 2001-03-01 2004-07-30 가부시끼가이샤 도시바 Guest-Host Liquid Crystal Composition And Guest-Host Liquid Crystal Display Device

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