Bistable switchable liquid crystal window
US8913215B2 · kind B2 · utility
25Cited by
8References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Dec 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bistable switchable liquid crystal device is provided in which the device can be switched between a transparent and an opaque state by a predetermined voltage pulse. The device is based on polymer stabilized cholesteric materials. No additional amount of voltage has to be applied to the device in order to sustain the optical states. Therefore, the device is energy-saving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.