JPS5695977A - Liquid crystal composition - Google Patents
Liquid crystal compositionInfo
- Publication number
- JPS5695977A JPS5695977A JP17180979A JP17180979A JPS5695977A JP S5695977 A JPS5695977 A JP S5695977A JP 17180979 A JP17180979 A JP 17180979A JP 17180979 A JP17180979 A JP 17180979A JP S5695977 A JPS5695977 A JP S5695977A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- cholesteric liquid
- helical structure
- pigment
- formula
- 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
Links
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Abstract
PURPOSE: A liquid crystal composition having improved temperature characteristics, comprising a cholesteric liquid crystal of a dextrorotatory helical structure, a cholesteric liquid crystal of a levorotatory helical structure and a polygenetic pigment.
CONSTITUTION: A liquid crystal composition comprising a cholesteric liquid crystal of a dextrorotatory helical structure, a cholesteric liquid crystal of a levorotatory helical structure and a polygenetic pigment whose absorption for visible light depends upon the orientation of the molecule. In the application to the field of display, as the cholesteric liquid crystal is suitable a system with a large-pitch helical structure, prepared by adding a cholesteric liquid crystal or an optically active substance having an asymmetrical carbon atom in the molecule to a nematic liquid crystal having positive dielectric anisotropy. Examples of the optically active substance include a compond represented by formula I, wherein 2-MB is a group of formula III and a compound represented by formula II, wherein 3-MP is a group of formula IV. Examples of the polygenetic pigment which is used as an L type bichromic pigment include compounds of formulas V and VI.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17180979A JPS5695977A (en) | 1979-12-28 | 1979-12-28 | Liquid crystal composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17180979A JPS5695977A (en) | 1979-12-28 | 1979-12-28 | Liquid crystal composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5695977A true JPS5695977A (en) | 1981-08-03 |
Family
ID=15930118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17180979A Pending JPS5695977A (en) | 1979-12-28 | 1979-12-28 | Liquid crystal composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5695977A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0084208A2 (en) * | 1982-01-06 | 1983-07-27 | Minnesota Mining And Manufacturing Company | Asymmetric dichroic dye molecules having polyazoaryl linking groups and substituted aryl thiazyl substituents |
| JPS61250087A (en) * | 1985-06-13 | 1986-11-07 | Canon Inc | Cholesteric liquid crystal composition |
| JPS63255257A (en) * | 1987-04-13 | 1988-10-21 | Adeka Argus Chem Co Ltd | Optically active cyanobiphenyl compound |
| USRE37509E1 (en) | 1986-04-03 | 2002-01-15 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britian And Northern Ireland | Smectic liquid crystal devices |
| JP2015044796A (en) * | 2013-07-31 | 2015-03-12 | 株式会社半導体エネルギー研究所 | Cyanobiphenyl derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device |
-
1979
- 1979-12-28 JP JP17180979A patent/JPS5695977A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0084208A2 (en) * | 1982-01-06 | 1983-07-27 | Minnesota Mining And Manufacturing Company | Asymmetric dichroic dye molecules having polyazoaryl linking groups and substituted aryl thiazyl substituents |
| JPS61250087A (en) * | 1985-06-13 | 1986-11-07 | Canon Inc | Cholesteric liquid crystal composition |
| USRE37509E1 (en) | 1986-04-03 | 2002-01-15 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britian And Northern Ireland | Smectic liquid crystal devices |
| JPS63255257A (en) * | 1987-04-13 | 1988-10-21 | Adeka Argus Chem Co Ltd | Optically active cyanobiphenyl compound |
| JP2015044796A (en) * | 2013-07-31 | 2015-03-12 | 株式会社半導体エネルギー研究所 | Cyanobiphenyl derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5695977A (en) | Liquid crystal composition | |
| JPS5534206A (en) | Nematic liquid crystal for display unit | |
| JPS564677A (en) | Composition for liquid crystal color display containing anthraquinone compound | |
| EP0347468A4 (en) | Liquid crystal composition. | |
| DE3063370D1 (en) | Tetrahydroquinazolines, process for their preparation, liquid crystalline dielectrics containing them and electro-optical display element | |
| JPS5435186A (en) | Liquid crystal composition | |
| JPS55149372A (en) | Nematic liquid crystal composition | |
| JPS57174375A (en) | Liquid crystal composition | |
| JPS545886A (en) | Liquid crystal composition and liquid crystal indicator comsisting of composition | |
| JPS5643386A (en) | Liquid crystal composition and liquid crystal display element using the same | |
| JPS5499786A (en) | Nematic liquid crystal composition | |
| JPS5441285A (en) | Liquid crystal composition | |
| JPS5740581A (en) | Liquid crystal composition | |
| JPS562371A (en) | Nematic liquid crystal composition | |
| JPS5695979A (en) | Nematic liquid crystal composition for display device | |
| JPS5443189A (en) | Liquid crystal composition | |
| JPS5718777A (en) | Liquid crystal composition | |
| JPS5636568A (en) | Low-viscosity menatic liquid crystal composition | |
| JPS55149370A (en) | Nematic liquid crystal composition | |
| JPS5521417A (en) | Liquid crystal display element | |
| JPS55133475A (en) | Liquid crystal composition and display element using the same | |
| JPS57170976A (en) | Nematic liquid crystal composition | |
| JPS57131765A (en) | 4-(4'-alkoxybenzoyloxy)-aniline derivative, its preparation and use | |
| JPS5681384A (en) | N type nematic liquid crystal composition | |
| JPS562372A (en) | Nematic liquid crystal composition |