Compensator, liquid crystal display device and retardation foil
US5978055A · kind A · utility
28Cited by
17References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compensator (for example, for a liquid-crystal display device) comprising a retardation foil with a tilted optical main axis and, in addition, a second optically active layer, can be manufactured in a simple manner by providing the retardation foil and the second layer on different sides of a transparent support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.