JPS5749686A - Liquid crystal composition - Google Patents

Liquid crystal composition

Info

Publication number
JPS5749686A
JPS5749686A JP12357180A JP12357180A JPS5749686A JP S5749686 A JPS5749686 A JP S5749686A JP 12357180 A JP12357180 A JP 12357180A JP 12357180 A JP12357180 A JP 12357180A JP S5749686 A JPS5749686 A JP S5749686A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal composition
polychromatic
active substance
optically active
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
JP12357180A
Other languages
Japanese (ja)
Other versions
JPH0223595B2 (en
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
Priority to CA000336458A priority Critical patent/CA1158078A/en
Application filed by Hitachi Ltd, Mitsubishi Kasei Corp filed Critical Hitachi Ltd
Priority to JP12357180A priority patent/JPS5749686A/en
Priority to GB8032437A priority patent/GB2065695B/en
Priority to DE3038372A priority patent/DE3038372C2/en
Priority to US06/195,860 priority patent/US4495083A/en
Priority to CH761080A priority patent/CH645917A5/en
Publication of JPS5749686A publication Critical patent/JPS5749686A/en
Publication of JPH0223595B2 publication Critical patent/JPH0223595B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)

Abstract

PURPOSE: A liquid crystal composition that contains a specific polychromatic anthraquinone pigment of bluish purple, thus showing great contrast and being used for an element of guest-host type liquid crystal display.
CONSTITUTION: At least one of polychromatic anthraquinone pigments of the formula [X is O, S, NR', (R' is H, lower alkyl); R is alkyl, cycloalkyl, aryl] is, when necessary, combined with an optically active substance to give a liquid crystal composition, preferably showing nematic state. The optically active substance is, e.g., a chiral nematic compound, an alcohol derivative such as 1-menthol or a ketone derivative of d-camphor.
COPYRIGHT: (C)1982,JPO&Japio
JP12357180A 1979-10-12 1980-09-08 Liquid crystal composition Granted JPS5749686A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA000336458A CA1158078A (en) 1980-09-08 1979-09-25 Artificial dental root
JP12357180A JPS5749686A (en) 1980-09-08 1980-09-08 Liquid crystal composition
GB8032437A GB2065695B (en) 1979-10-12 1980-10-08 Guest-host type liquid crystal composition and liquid crystal display device using the same
DE3038372A DE3038372C2 (en) 1979-10-12 1980-10-10 Liquid crystal compositions and their uses
US06/195,860 US4495083A (en) 1979-10-12 1980-10-10 Guest-host type liquid crystal composition and liquid crystal display device using the same
CH761080A CH645917A5 (en) 1979-10-12 1980-10-13 LIQUID CRYSTAL COMPOSITIONS AND THEIR USE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12357180A JPS5749686A (en) 1980-09-08 1980-09-08 Liquid crystal composition

Publications (2)

Publication Number Publication Date
JPS5749686A true JPS5749686A (en) 1982-03-23
JPH0223595B2 JPH0223595B2 (en) 1990-05-24

Family

ID=14863868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12357180A Granted JPS5749686A (en) 1979-10-12 1980-09-08 Liquid crystal composition

Country Status (2)

Country Link
JP (1) JPS5749686A (en)
CA (1) CA1158078A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182879A (en) * 1983-04-01 1984-10-17 Hitachi Ltd Liquid crystal composition
US4483593A (en) * 1981-03-20 1984-11-20 Hitachi, Ltd. Guest-host type liquid crystal composition and liquid crystal display device
US4528113A (en) * 1983-03-29 1985-07-09 Mitsubishi Chemical Industries Limited Anthraquinone dye and liquid crystal composition containing the dye

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647478A (en) * 1979-09-21 1981-04-30 Bbc Brown Boveri & Cie Liquid crystal mixture for electrooptical display device
JPS56145969A (en) * 1980-03-21 1981-11-13 Asulab Sa Liquid crystal base composition for electrooptic device
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647478A (en) * 1979-09-21 1981-04-30 Bbc Brown Boveri & Cie Liquid crystal mixture for electrooptical display device
JPS56145969A (en) * 1980-03-21 1981-11-13 Asulab Sa Liquid crystal base composition for electrooptic device
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483593A (en) * 1981-03-20 1984-11-20 Hitachi, Ltd. Guest-host type liquid crystal composition and liquid crystal display device
US4528113A (en) * 1983-03-29 1985-07-09 Mitsubishi Chemical Industries Limited Anthraquinone dye and liquid crystal composition containing the dye
JPS59182879A (en) * 1983-04-01 1984-10-17 Hitachi Ltd Liquid crystal composition

Also Published As

Publication number Publication date
JPH0223595B2 (en) 1990-05-24
CA1158078A (en) 1983-12-06

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