Optically anisotropic thin film and process for producing the same
US6337111B1 · kind B1 · utility
9Cited by
18References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/031
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An optically anisotropic thin film comprising a dichroic dye which is cured while keeping prescribed orientation and a process for producing the same which comprises the steps of forming an orientation film of prescribed mode on a transparent or semitransparent substrate, applying a solution of a dichroic dye in a solvent to the orientation film, and fixing the orientation of the dichroic dye by evaporating the solvent from the dichroic dye solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.