Method to provide homogeneous liquid crystal cells containing a dyestuff
US4098301A · kind A · utility
14Cited by
11References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1976 |
| Grant date | Jul 4, 1978 |
| Priority date | — |
| Expiry date | Dec 23, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1341
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Filled liquid crystal cells containing a soluble, pleochroic dyestuff are treated by heating above the nematic to isotropic liquid transition temperature until the cells appear uniformly colored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.