JPS5740581A - Liquid crystal composition - Google Patents
Liquid crystal compositionInfo
- Publication number
- JPS5740581A JPS5740581A JP11672980A JP11672980A JPS5740581A JP S5740581 A JPS5740581 A JP S5740581A JP 11672980 A JP11672980 A JP 11672980A JP 11672980 A JP11672980 A JP 11672980A JP S5740581 A JPS5740581 A JP S5740581A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- optically active
- spiral structure
- crystal composition
- dielectric anisotropy
- 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
- Liquid Crystal Substances (AREA)
Abstract
PURPOSE: A liquid crystal composition capable of providing controlling effects on change in temperature of voltage characteristic like conventional effects by the addtion of a very small amount of an optically active substance, obtained by adding an l-menthol type optically active substance of a specific formula to a nematic liquid crystal having a positive dielectric anisotropy.
CONSTITUTION: (B) One or more (preferably ≤6wt%) l-menthol type optically active substances shown by the formula (R is 1W8C straight-chain alkyl; * is asymmetric carbon), having a left spiral structure, is added to (A) a nematic liquid crystal (preferably cholesteric liquid crystal having a right spiral structure or chiralnematic liquid crystal having a right spiral structure) having a positive dielectric anisotropy, to give the desired liquid crystal composition.
EFFECT: Useful for wide margin formation of a guest-host display of the phase transition type requiring many figures.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11672980A JPS5740581A (en) | 1980-08-25 | 1980-08-25 | Liquid crystal composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11672980A JPS5740581A (en) | 1980-08-25 | 1980-08-25 | Liquid crystal composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5740581A true JPS5740581A (en) | 1982-03-06 |
JPS6334918B2 JPS6334918B2 (en) | 1988-07-12 |
Family
ID=14694344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11672980A Granted JPS5740581A (en) | 1980-08-25 | 1980-08-25 | Liquid crystal composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740581A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4784793A (en) * | 1985-01-26 | 1988-11-15 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Terpenoid derivatives and liquid crystal materials and devices containing them |
US5180521A (en) * | 1986-02-17 | 1993-01-19 | Merck Patent Gesellschaft Mit Beschraenkter Haftung | Chiral compounds |
GB2280681A (en) * | 1993-08-06 | 1995-02-08 | Merck Patent Gmbh | Mesogenic menthol derivatives for thermochromic liquid crystalline media and inks |
JP2008195924A (en) * | 2007-01-18 | 2008-08-28 | Chisso Corp | Cholesteric liquid crystal composition |
-
1980
- 1980-08-25 JP JP11672980A patent/JPS5740581A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4784793A (en) * | 1985-01-26 | 1988-11-15 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Terpenoid derivatives and liquid crystal materials and devices containing them |
US5180521A (en) * | 1986-02-17 | 1993-01-19 | Merck Patent Gesellschaft Mit Beschraenkter Haftung | Chiral compounds |
GB2280681A (en) * | 1993-08-06 | 1995-02-08 | Merck Patent Gmbh | Mesogenic menthol derivatives for thermochromic liquid crystalline media and inks |
US5705093A (en) * | 1993-08-06 | 1998-01-06 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Thermochromic media |
GB2280681B (en) * | 1993-08-06 | 1998-03-11 | Merck Patent Gmbh | Thermochromic media |
JP2008195924A (en) * | 2007-01-18 | 2008-08-28 | Chisso Corp | Cholesteric liquid crystal composition |
US7771617B2 (en) | 2007-01-18 | 2010-08-10 | Chisso Corporation | Cholesteric liquid crystal composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6334918B2 (en) | 1988-07-12 |
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