Process for controlling layer spacing in mixtures of smectic liquid crystal compounds
US5417883A · kind A · utility
29Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Apr 11, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1416
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for controlling layer spacing in mixtures of smectic liquid crystal compounds comprises the step of combining a liquid crystal composition having a net negative thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase and a liquid crystal composition having a net positive thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase, each of the compositions comprising at least one smectic or latent smectic liquid crystal compound. The process enables control of layer spacing in the tilted smectic mesophase(s) and thereby control or suppression of chevron layer geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.