Guest-host type liquid crystal composition and liquid crystal display device using the same
US4495083A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 10, 1980 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Oct 10, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B1/58
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a guest-host type liquid crystal composition and a color liquid crystal display device in which said composition has been sealed. This invention provides a liquid crystal composition containing a specific anthraquinone dye as a pleochroic dye which, as the guest dye, has a degree of orderness of the alignment (order parameter) in the host liquid crystal in the range from 0.5 to 1, shows remarkable contrast between the colored state and the uncolored state, and is excellent in stability to light, heat, and the like. Further, this invention provides a color guest-host type liquid crystal display device in which said liquid crystal composition has been sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.