Retardation substrate, semi-transparent liquid crystal display, and method for manufacturing retardation substrate
US7948590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Sep 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133633
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A retardation substrate is provided, which includes a substrate and an optically anisotropic solidified liquid crystal layer which is supported by the substrate and formed as a continuous film made from a same material. The solidified liquid crystal layer comprises first to third regions each having two sub-regions which are a sub-region A and a sub-region B, an in-plane birefringence of the 1A sub-region is larger than that of the 2A sub-region, the in-plane birefringence of the 3A sub-region is smaller than that of the 2A sub-region, and an in-plane birefringence of the 1B sub-region is the same as that of the 3B sub-region, smaller than that of the 1A sub-region and larger than that of the 3A sub-region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.