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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10756431 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Jul. 20, 2017

Scanning antenna, scanning antenna drive method, and liquid crystal device

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Jumpei Takahashi, Sakai, JP;

Masanobu Mizusaki, Sakai, JP;

Kiyoshi Minoura, Sakai, JP;

Yohji Taniguchi, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Amit Chatly

Int. Cl.
CPC ...
H01Q 1/44 (2006.01); H01Q 3/34 (2006.01); H01Q 13/22 (2006.01); H01Q 21/06 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01); G02F 1/13 (2006.01); H01Q 3/44 (2006.01); G09G 3/00 (2006.01); G09G 3/36 (2006.01); H01L 23/544 (2006.01); H01Q 1/38 (2006.01); H01Q 3/26 (2006.01); H01Q 15/14 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/34 (2013.01); G02F 1/13 (2013.01); G09G 3/006 (2013.01); G09G 3/3696 (2013.01); H01L 23/544 (2013.01); H01L 27/124 (2013.01); H01L 27/1218 (2013.01); H01L 27/1255 (2013.01); H01L 27/1288 (2013.01); H01L 29/7869 (2013.01); H01Q 1/38 (2013.01); H01Q 3/267 (2013.01); H01Q 3/44 (2013.01); H01Q 13/22 (2013.01); H01Q 15/14 (2013.01); H01Q 21/06 (2013.01); G09G 3/3614 (2013.01); G09G 2310/0291 (2013.01); H01L 2223/54426 (2013.01); H01Q 21/065 (2013.01);
Abstract

A scanning antenna includes a transmission and/or reception region including a plurality of antenna units and a non-transmission and/or reception region located in a region other than the transmission and/or reception region. The scanning antenna includes a TFT substrate, a slot substrate, and a liquid crystal layer provided between the TFT substrate and the slot substrate. The scanning antenna includes: at least one monitoring capacitance section formed in the non-transmission and/or reception region, the section including a liquid crystal layer and a monitoring capacitance, which includes a first measurement electrode and a second measurement electrode opposing each other with the liquid crystal layer interposed therebetween; and a voltage monitor connectable to the first measurement electrode of the monitoring capacitance.

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