One pixel full color display device using cholesteric mixture
US7400370B2 · kind B2 · utility
2Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A LCD device (200) is disclosed that has a cholesteric compound layer (205), a backplane light (201), and one or more polarizers (203, 209) and liquid crystal smectic C* layers. The cholesteric compound layer (205) transmits elliptically polarized light having an amount of absorbance which is related to the angular rotation of the polarization. One or more of the liquid crystal smectic C* layers may be controlled as a polarization filter to select the apparent color of the transmitted light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.