CONTACT STRUCTURE FOR A TUNABLE LIQUID CRYSTAL OPTICAL DEVICE
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United States of America Patent
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Issued Date -
Jan 5, 2017
app pub date -
Jul 13, 2016
filing date -
Jun 6, 2008
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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.
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