Fluorescent liquid crystal display
US4176918A · kind A · utility
5Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1977 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Nov 14, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/125
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal composition for improved electro-optic displays. The composition undergoes an electrically induced cholesteric-nematic phase transition and includes fluorescent materials which are excited by ultra-violet radiation. In the cholesteric phase of the composition, the fluorescence is much stronger producing sufficient contrast to render the display visible in the dark.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.