Contact structure for a tunable liquid crystal optical device
US8558985B2 · kind B2 · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2009 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Feb 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tunable liquid crystal optical device defining an optical aperture and having a layered structure. The device includes a film electrode formed on a surface of a first substrate and covered by a second substrate, and a contact structure filling a volume within the layered structure and contacting the film electrode. The contact structure is located outside of the optical aperture and provides an electrical connection surface much larger than a thickness of the film electrode, such that reliable electrical connections may be made to the electrode, particularly in the context of wafer scale manufacturing of such a device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.