Process for preparing an optical retardation film
US6262788A · kind A · utility
19Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a process for preparing an optical retardation film comprising at least one layer of an anisotropic polymer material, to a method of rubbing a substrate for the alignment of liquid crystal or mesogenic material that can be used in the above process, to an optical retardation film obtainable by the above process, to the use of such an optical retardation film in a liquid crystal display, and to a liquid crystal display device comprising a liquid crystal cell and such an optical retardation film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.