JPS57119976A - Liquid crystal composition - Google Patents

Liquid crystal composition

Info

Publication number
JPS57119976A
JPS57119976A JP574981A JP574981A JPS57119976A JP S57119976 A JPS57119976 A JP S57119976A JP 574981 A JP574981 A JP 574981A JP 574981 A JP574981 A JP 574981A JP S57119976 A JPS57119976 A JP S57119976A
Authority
JP
Japan
Prior art keywords
liquid crystal
coloring matter
crystal composition
anthraquinone
represented
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
JP574981A
Other languages
Japanese (ja)
Other versions
JPH0147514B2 (en
Inventor
Seiichi Imahori
Masaharu Kaneko
Tetsuo Ozawa
Shuji Imazeki
Akio Kobi
Mikio Sato
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 JP574981A priority Critical patent/JPS57119976A/en
Priority to GB8201113A priority patent/GB2094825B/en
Priority to DE19823201120 priority patent/DE3201120A1/en
Priority to US06/340,547 priority patent/US4434072A/en
Priority to CH284/82A priority patent/CH647541A5/en
Publication of JPS57119976A publication Critical patent/JPS57119976A/en
Publication of JPH0147514B2 publication Critical patent/JPH0147514B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: A liquid crystal composition that is obtained by mixing a specific anthraquinone-containing coloring matter with a liquid crystal and contains a pheochroic coloring matter which shows magenta and has excellent order parameters, solubility and stability.
CONSTITUTION: A liquid crystal composition containing an anthraquinone-containing coloring matter represented by formulaI, where Ar is aryl that may be substituted by alkyl, alkoxyalkyl, aryloxyalkyl, cycloalkyl, alkoxy, alkoxyalkoxy, arylalkoxy, acyloxy, alkoxycarbonyl, aryloxycarbonyl, aryl, halogen atom, cyano group or nitro group. The anthraquinone-containing coloring matter represented by formulaIis produced, e.g. by reacting a compound represented by XCH2Ar, where X is halogen atom or arylsulphonyloxy, with a compound represented by formula II in the presence of an acid coupling agent such as an alkali carbonate.
COPYRIGHT: (C)1982,JPO&Japio
JP574981A 1981-01-17 1981-01-17 Liquid crystal composition Granted JPS57119976A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP574981A JPS57119976A (en) 1981-01-17 1981-01-17 Liquid crystal composition
GB8201113A GB2094825B (en) 1981-01-17 1982-01-15 Liquid crystal compositions containing pleochroic anthraquinone dyes
DE19823201120 DE3201120A1 (en) 1981-01-17 1982-01-15 LIQUID CRYSTAL COMPOSITION
US06/340,547 US4434072A (en) 1981-01-17 1982-01-18 Liquid crystal composition
CH284/82A CH647541A5 (en) 1981-01-17 1982-01-18 LIQUID CRYSTAL MIXTURE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP574981A JPS57119976A (en) 1981-01-17 1981-01-17 Liquid crystal composition

Publications (2)

Publication Number Publication Date
JPS57119976A true JPS57119976A (en) 1982-07-26
JPH0147514B2 JPH0147514B2 (en) 1989-10-13

Family

ID=11619751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP574981A Granted JPS57119976A (en) 1981-01-17 1981-01-17 Liquid crystal composition

Country Status (1)

Country Link
JP (1) JPS57119976A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device
JPS59172546A (en) * 1983-03-23 1984-09-29 Hitachi Ltd Anthraquinone dye and liquid crystal composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773067A (en) * 1980-07-29 1982-05-07 Secr Defence Brit Material suitable for guest-host liquid crystal device and liquid crystal electric- optical device
JPH049830B2 (en) * 1980-07-29 1992-02-21
JPS59172546A (en) * 1983-03-23 1984-09-29 Hitachi Ltd Anthraquinone dye and liquid crystal composition

Also Published As

Publication number Publication date
JPH0147514B2 (en) 1989-10-13

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