Liquid crystal display device
US4400059A · kind A · utility
10Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | May 6, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/137
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A color liquid crystal display device wherein a nematic liquid crystal to which a dichroic dye and an optically active substance have been added is used as the liquid crystal layer and the amount of said optically active substance added is so selected as to fall in a range making steep the threshold voltage characteristics of the liquid crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.