Liquid crystal composition and liquid crystal element
US7348044B2 · kind B2 · utility
5Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2006 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | May 18, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel smectic liquid crystal composition is disclosed. The smectic liquid crystal composition comprises at least, a dichroic dye, a dual-frequency switchable nematic liquid crystal and a smectic liquid crystal. The dielectric anisotropy of the composition changes from a positive value to a negative value with increasing a frequency of a field applied to the composition. A novel liquid crystal device is also disclosed. The device comprises a pair of electrodes of which at least one is a transparent electrode, and a layer between the pair of electrodes comprising the smectic liquid crystal composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.