JPS55123673A - Liquid crystal color display device - Google Patents

Liquid crystal color display device

Info

Publication number
JPS55123673A
JPS55123673A JP3005779A JP3005779A JPS55123673A JP S55123673 A JPS55123673 A JP S55123673A JP 3005779 A JP3005779 A JP 3005779A JP 3005779 A JP3005779 A JP 3005779A JP S55123673 A JPS55123673 A JP S55123673A
Authority
JP
Japan
Prior art keywords
liquid crystal
display device
composition
color display
crystal color
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
JP3005779A
Other languages
Japanese (ja)
Other versions
JPS6115915B2 (en
Inventor
Ryoichi Morinaka
Ryoichi Tsukahara
Isao Nishizawa
Tsuneo Hidaka
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP3005779A priority Critical patent/JPS55123673A/en
Priority to US06/128,713 priority patent/US4304683A/en
Priority to US06/129,315 priority patent/US4360447A/en
Priority to GB8008600A priority patent/GB2051113B/en
Priority to CH203180A priority patent/CH643290A5/en
Priority to CH203080A priority patent/CH643289A5/en
Priority to GB8008667A priority patent/GB2051114B/en
Priority to DE19803009974 priority patent/DE3009974A1/en
Priority to DE19803009940 priority patent/DE3009940A1/en
Priority to FR8005872A priority patent/FR2451392B1/fr
Priority to FR8005873A priority patent/FR2451393A1/en
Publication of JPS55123673A publication Critical patent/JPS55123673A/en
Priority to US06/405,267 priority patent/US4473486A/en
Publication of JPS6115915B2 publication Critical patent/JPS6115915B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: To improve the contrast ratio of a liquid crystal composition used in the title device, by adding a multi-color dye, e.g. anthraquione or quinophthalone, of specific structure and an optically active substance to the nematic liquid crystal composition.
CONSTITUTION: (A) A nematic liquid crystal compound, e.g. N-p-hexylbenzylideneaminobenzonitrile, having the positive dielectirc anisotropy or its composition is incorporated with (B) an optically active substance and (C) 0.01W5wt% of a multi-color dye, e.g. 1-amino-4-hydroxy-2-phenoxy-anthraquinone, having a structural formula selected from the group consisting of anthraquinone, quinophthalone, diphenylamine, or thioindigo dyes. The composition thus obtained is introduced into a liquid crystal cell and used as a color display device.
COPYRIGHT: (C)1980,JPO&Japio
JP3005779A 1979-03-16 1979-03-16 Liquid crystal color display device Granted JPS55123673A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP3005779A JPS55123673A (en) 1979-03-16 1979-03-16 Liquid crystal color display device
US06/128,713 US4304683A (en) 1979-03-16 1980-03-10 Composition for liquid crystal color display element
US06/129,315 US4360447A (en) 1979-03-16 1980-03-11 Composition for liquid crystal color display elements
GB8008600A GB2051113B (en) 1979-03-16 1980-03-13 Composition for liquid crystal colour display element
DE19803009974 DE3009974A1 (en) 1979-03-16 1980-03-14 COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS
CH203080A CH643289A5 (en) 1979-03-16 1980-03-14 MIXTURE FOR COLOR-DISPLAYING NEMATIC LIQUID CRYSTAL DISPLAY ELEMENTS.
GB8008667A GB2051114B (en) 1979-03-16 1980-03-14 Composition for liquid crystal colour display elements
CH203180A CH643290A5 (en) 1979-03-16 1980-03-14 MIXTURE FOR COLOUR indicating, nematic liquid-INDICATORS.
DE19803009940 DE3009940A1 (en) 1979-03-16 1980-03-14 COMPOSITION FOR A LIQUID CRYSTAL COLOR DISPLAY ELEMENT
FR8005872A FR2451392B1 (en) 1979-03-16 1980-03-17
FR8005873A FR2451393A1 (en) 1979-03-16 1980-03-17 COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS
US06/405,267 US4473486A (en) 1979-03-16 1982-08-04 Composition for liquid crystal color display elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3005779A JPS55123673A (en) 1979-03-16 1979-03-16 Liquid crystal color display device

Related Child Applications (3)

Application Number Title Priority Date Filing Date
JP16706981A Division JPS6046152B2 (en) 1981-10-21 1981-10-21 Composition for liquid crystal color display
JP22770885A Division JPS61148291A (en) 1985-10-15 1985-10-15 Compositoin for liquid crystal color display
JP22884185A Division JPS61148292A (en) 1985-10-16 1985-10-16 Composition for liquid crystal color display

Publications (2)

Publication Number Publication Date
JPS55123673A true JPS55123673A (en) 1980-09-24
JPS6115915B2 JPS6115915B2 (en) 1986-04-26

Family

ID=12293188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3005779A Granted JPS55123673A (en) 1979-03-16 1979-03-16 Liquid crystal color display device

Country Status (1)

Country Link
JP (1) JPS55123673A (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698277A (en) * 1980-01-08 1981-08-07 Mitsubishi Chem Ind Ltd Liquid crystalline composition
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye
JPS57117581A (en) * 1981-01-12 1982-07-22 Sumitomo Chem Co Ltd Liquid crystal display element
JPS57190048A (en) * 1981-05-16 1982-11-22 Nippon Kanko Shikiso Kenkyusho:Kk Color liquid crystal material using anthraquinone dye
JPS57198777A (en) * 1981-06-01 1982-12-06 Mitsui Toatsu Chem Inc Composition for liquid crystal display
FR2542323A1 (en) * 1983-03-08 1984-09-14 Mitsui Toatsu Chemicals ANTHRAQUINONIC DICHROIC DYES AND LIQUID CRYSTAL COMPOSITION FOR COLOR DISPLAY CONTAINING SAME
JPS59182879A (en) * 1983-04-01 1984-10-17 Hitachi Ltd Liquid crystal composition
JPS61148291A (en) * 1985-10-15 1986-07-05 Mitsui Toatsu Chem Inc Compositoin for liquid crystal color display
JPS61162581A (en) * 1985-01-11 1986-07-23 Matsushita Electric Ind Co Ltd Liquid crystal composition containing thioindigo coloring matter
JPS61215686A (en) * 1985-03-22 1986-09-25 Matsushita Electric Ind Co Ltd Liquid crystal composition
US4702561A (en) * 1977-04-11 1987-10-27 Minnesota Mining And Manufacturing Company Pleochroic dyes and electro-optical displays therewith
WO2014090373A1 (en) 2012-12-13 2014-06-19 Merck Patent Gmbh Liquid-crystalline medium
WO2014135240A2 (en) 2013-03-05 2014-09-12 Merck Patent Gmbh Device for regulating the passage of energy
WO2014180525A1 (en) 2013-05-08 2014-11-13 Merck Patent Gmbh Device comprising two liquid crystal switching layers for regulating the passage of optical energy
WO2014187529A1 (en) 2013-05-24 2014-11-27 Merck Patent Gmbh Device for controlling the passage of energy, containing a dichroic dye compound
DE102015005800A1 (en) 2015-05-06 2016-11-10 Merck Patent Gmbh Thiadiazolochinoxalinderivate
WO2017008880A1 (en) 2015-07-10 2017-01-19 Merck Patent Gmbh Dithio-alkyl-pyrrolo-pyrroles and use thereof as dyes
WO2018001919A1 (en) 2016-06-28 2018-01-04 Merck Patent Gmbh Liquid crystalline medium
WO2018015320A1 (en) 2016-07-19 2018-01-25 Merck Patent Gmbh Liquid crystalline medium
WO2019238567A1 (en) 2018-06-11 2019-12-19 Merck Patent Gmbh Liquid crystalline medium
WO2019243216A1 (en) 2018-06-20 2019-12-26 Merck Patent Gmbh Liquid crystalline medium
EP3623451A1 (en) 2013-12-19 2020-03-18 Merck Patent GmbH Compound
WO2020064591A1 (en) 2018-09-25 2020-04-02 Merck Patent Gmbh Azo dye
WO2020104563A1 (en) 2018-11-23 2020-05-28 Merck Patent Gmbh Dichroic dye composition
WO2020127141A1 (en) 2018-12-19 2020-06-25 Merck Patent Gmbh Switching layers for use in a switching element
WO2020254219A1 (en) 2019-06-17 2020-12-24 Merck Patent Gmbh Liquid crystal-based light valve
EP3839620A1 (en) 2019-12-16 2021-06-23 Merck Patent GmbH Device for the regulation of light transmission
WO2022122871A1 (en) 2020-12-11 2022-06-16 Merck Patent Gmbh Device for the regulation of light transmission
WO2023094404A1 (en) 2021-11-24 2023-06-01 Merck Patent Gmbh Liquid crystal medium and liquid crystal display

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702561A (en) * 1977-04-11 1987-10-27 Minnesota Mining And Manufacturing Company Pleochroic dyes and electro-optical displays therewith
JPS5698277A (en) * 1980-01-08 1981-08-07 Mitsubishi Chem Ind Ltd Liquid crystalline composition
JPS56161488A (en) * 1980-04-18 1981-12-11 Bayer Ag Liquid crystal substance containing anthraquinone dye
JPS57117581A (en) * 1981-01-12 1982-07-22 Sumitomo Chem Co Ltd Liquid crystal display element
JPS57190048A (en) * 1981-05-16 1982-11-22 Nippon Kanko Shikiso Kenkyusho:Kk Color liquid crystal material using anthraquinone dye
JPS6315959B2 (en) * 1981-05-16 1988-04-06 Nippon Kanko Shikiso Kenkyusho Kk
JPS57198777A (en) * 1981-06-01 1982-12-06 Mitsui Toatsu Chem Inc Composition for liquid crystal display
US4552684A (en) * 1983-03-08 1985-11-12 Mitsui Toatsu Chemicals, Inc. Dichroic dye and liquid crystalline composition for color display
FR2542323A1 (en) * 1983-03-08 1984-09-14 Mitsui Toatsu Chemicals ANTHRAQUINONIC DICHROIC DYES AND LIQUID CRYSTAL COMPOSITION FOR COLOR DISPLAY CONTAINING SAME
JPS59182879A (en) * 1983-04-01 1984-10-17 Hitachi Ltd Liquid crystal composition
JPS61162581A (en) * 1985-01-11 1986-07-23 Matsushita Electric Ind Co Ltd Liquid crystal composition containing thioindigo coloring matter
JPH0582436B2 (en) * 1985-01-11 1993-11-18 Matsushita Electric Ind Co Ltd
JPS61215686A (en) * 1985-03-22 1986-09-25 Matsushita Electric Ind Co Ltd Liquid crystal composition
JPS61148291A (en) * 1985-10-15 1986-07-05 Mitsui Toatsu Chem Inc Compositoin for liquid crystal color display
JPS6241991B2 (en) * 1985-10-15 1987-09-05 Mitsui Toatsu Chemicals
WO2014090373A1 (en) 2012-12-13 2014-06-19 Merck Patent Gmbh Liquid-crystalline medium
WO2014135240A2 (en) 2013-03-05 2014-09-12 Merck Patent Gmbh Device for regulating the passage of energy
WO2014180525A1 (en) 2013-05-08 2014-11-13 Merck Patent Gmbh Device comprising two liquid crystal switching layers for regulating the passage of optical energy
WO2014187529A1 (en) 2013-05-24 2014-11-27 Merck Patent Gmbh Device for controlling the passage of energy, containing a dichroic dye compound
EP3623451A1 (en) 2013-12-19 2020-03-18 Merck Patent GmbH Compound
DE102015005800A1 (en) 2015-05-06 2016-11-10 Merck Patent Gmbh Thiadiazolochinoxalinderivate
WO2017008880A1 (en) 2015-07-10 2017-01-19 Merck Patent Gmbh Dithio-alkyl-pyrrolo-pyrroles and use thereof as dyes
WO2018001919A1 (en) 2016-06-28 2018-01-04 Merck Patent Gmbh Liquid crystalline medium
WO2018015320A1 (en) 2016-07-19 2018-01-25 Merck Patent Gmbh Liquid crystalline medium
WO2019238567A1 (en) 2018-06-11 2019-12-19 Merck Patent Gmbh Liquid crystalline medium
WO2019243216A1 (en) 2018-06-20 2019-12-26 Merck Patent Gmbh Liquid crystalline medium
WO2020064591A1 (en) 2018-09-25 2020-04-02 Merck Patent Gmbh Azo dye
WO2020104563A1 (en) 2018-11-23 2020-05-28 Merck Patent Gmbh Dichroic dye composition
WO2020127141A1 (en) 2018-12-19 2020-06-25 Merck Patent Gmbh Switching layers for use in a switching element
WO2020254219A1 (en) 2019-06-17 2020-12-24 Merck Patent Gmbh Liquid crystal-based light valve
EP3839620A1 (en) 2019-12-16 2021-06-23 Merck Patent GmbH Device for the regulation of light transmission
WO2022122871A1 (en) 2020-12-11 2022-06-16 Merck Patent Gmbh Device for the regulation of light transmission
WO2023094404A1 (en) 2021-11-24 2023-06-01 Merck Patent Gmbh Liquid crystal medium and liquid crystal display

Also Published As

Publication number Publication date
JPS6115915B2 (en) 1986-04-26

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