Bistable nematic liquid crystal device
US6903790B2 · kind B2 · utility
4Cited by
13References
72Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 23, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133776
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bistable nematic liquid crystal device includes an array of upstanding features (10) on at least one cell wall (2). The features (10) have a shape and/or orientation to induce the liquid crystal director adjacent the features (10) to adopt two different tilt angles in substantially the same azimuthal direction. The arrangement is such that two stable liquid crystal molecular configurations can exist after suitable electrical signals have been applied to the electrodes (12, 14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.