Light-modulating cell
US6674505B1 · kind B1 · utility
3Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1999 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Nov 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13476
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-modulating cell and a display device based on a chiral nematic liquid crystal material in which the difference of optical rotation power between the planar nematic state and the focal conic state is used for discriminating between optical states, in particular for chiral nematic liquid crystal material having a pitch length associated with infrared light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.