Liquid crystal-based electro-optical device forming, in particular, a switch
US6959124B2 · kind B2 · utility
1Cited by
1References
23Claims
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Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an electro-optical device, characterized in that it comprises two plane optical substrates (100) each having at least one optical waveguide (110), and a nematic liquid crystal (200) inserted between them, in which the liquid crystal (200) is split into two separate active zones (210, 220) serving to control coupling/decoupling of a respective one of the TE and TM polarizations of a light signal injected into the waveguides (110).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.