Liquid crystal elements and conductive organic compound film-forming compositions
US5231523A · kind A · utility
11Cited by
2References
10Claims
0Family size
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Key dates
| Filing date | Aug 20, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/121
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal element has a pair of opposed substrates, electrodes thereon, and a ferroelectric liquid crystal sealed between the substrates. A film of a conductive organic compound or a mixture of a conductive organic compound and another organic compound is disposed on the substrate surface, optionally via an orienting film. The conductive organic compound is typically a charge-transfer complex. The film may be formed by an LB method, coating, vapor phase polymerization or electrolytic polymerization. The element has improved optical bistability, contrast, and response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.