Synergistic host-guest interactions in FLC mixtures for increased polarization and decreased switching speed
US8597541B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Feb 2, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosed subject matter provides a chiral host-guest composition for a ferroelectric liquid crystal mixture, the host-guest composition comprising a chiral guest compound and an achiral host compound, wherein the host-guest composition induces a greater degree of polarization in the liquid crystal mixture than is induced in the mixture with a comparable amount of the chiral guest compound in the absence of the achiral host compound. The chiral guest is a fluorinated compound comprising a aryl or heteroaryl core substituted with an alkyl chain, wherein the alkyl chain includes one or more fluorine atoms, each fluorine atom being bonded to a chiral carbon atom. The achiral host possesses a central thiadiazole core, with at least one aryl/heteroaryl wing, further substituted with alkyl or alkoxy groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.