JPS55143526A - Liquid crystal color display element - Google Patents
Liquid crystal color display elementInfo
- Publication number
- JPS55143526A JPS55143526A JP5179479A JP5179479A JPS55143526A JP S55143526 A JPS55143526 A JP S55143526A JP 5179479 A JP5179479 A JP 5179479A JP 5179479 A JP5179479 A JP 5179479A JP S55143526 A JPS55143526 A JP S55143526A
- Authority
- JP
- Japan
- Prior art keywords
- crystal
- liq
- display element
- activator
- concn
- 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: To obtain a guest-host effect type liq. crystal display element giving display free from color shading by using a nematic liq. crystal with negative dielectric anisotropy, as a liq. crystal composition for the element, to which an optical activator has been added to such a degree that cholesteric phase is not formed.
CONSTITUTION: To a nematic liq. crystal with negative dielectric anisotropy is added an optical activator in a concn. (about 1wt%) not more than the critical concn. where the crystal is of helical structure, providing elastic energy to the interior or the crystal. The resulting liq. crystal composition is held between vertically oriented upper and lower electrode substrates together with dichromatic dye to form a liq. crystal color display element. The above-mentioned activator may be (+)p-2- methylbutyl-p'-cyanobiphenyl. This element displays a color pattern against a white background by applying an electric field.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5179479A JPS55143526A (en) | 1979-04-26 | 1979-04-26 | Liquid crystal color display element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5179479A JPS55143526A (en) | 1979-04-26 | 1979-04-26 | Liquid crystal color display element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55143526A true JPS55143526A (en) | 1980-11-08 |
Family
ID=12896838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5179479A Pending JPS55143526A (en) | 1979-04-26 | 1979-04-26 | Liquid crystal color display element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143526A (en) |
-
1979
- 1979-04-26 JP JP5179479A patent/JPS55143526A/en active Pending
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