Title:
COMPOSITE SUBSTRATE FOR ELECTRO-OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/180922
Kind Code:
A1
Abstract:
Disclosed is a composite substrate for an electro-optical device. This composite substrate is equipped with: an electro-optical crystal substrate having an electro-optical effect; a low-dielectric-constant substrate which has a lower dielectric constant than does the electro-optical crystal substrate and on which the electro-optical crystal substrate is layered; a low-refractive-index layer which has a lower refractive index than does the electro-optical crystal substrate, and is positioned between the low-dielectric-constant substrate and the electro-optical crystal substrate; and an amorphous layer which is positioned between the low-dielectric-constant substrate and the low-refractive-index layer, and is configured from the elements constituting the low-dielectric-constant substrate and the elements constituting the low-refractive-index layer. It is possible to produce this composite substrate by directly joining an electro-optical crystal substrate, on which a low-refractive-index layer is formed as a film, to a low-dielectric-constant substrate.
Inventors:
KONDO JUNGO (JP)
EJIRI TETSUYA (JP)
YAMAGUCHI SHOICHIRO (JP)
EJIRI TETSUYA (JP)
YAMAGUCHI SHOICHIRO (JP)
Application Number:
PCT/JP2018/011764
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
G02F1/035; G02B6/12
Domestic Patent References:
| WO2018008183A1 | 2018-01-11 |
Foreign References:
| JPH06289346A | 1994-10-18 | |||
| JP2012078375A | 2012-04-19 | |||
| JP2004145261A | 2004-05-20 | |||
| US20070297732A1 | 2007-12-27 |
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (JP)
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