Trim retarders incorporating negative birefringence
US7170574B2 · kind B2 · utility
23Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2004 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Jun 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to trim retarders used to compensate for residual birefringence created by liquid crystal display panels. In particular the present invention relates to a trim retarder with negative out-of-plane birefringence provided by a form birefringent multi-layer dielectric stack for compensating for retardances resulting from liquid crystal on silicon display panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.