JPS55123673A - Liquid crystal color display device - Google Patents
Liquid crystal color display deviceInfo
- 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
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
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)
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 |
-
1979
- 1979-03-16 JP JP3005779A patent/JPS55123673A/en active Granted
Cited By (33)
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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