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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 10756440 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Aug. 24, 2017

Scanning antenna and method of manufacturing scanning antenna

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Hiroaki Asagi, Sakai, JP;

Isamu Miyake, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Jimmy T Vu

Int. Cl.
CPC ...
H01Q 19/06 (2006.01); H01Q 13/10 (2006.01); H01L 27/12 (2006.01); H01Q 3/44 (2006.01); G02F 1/13 (2006.01); G02F 1/1368 (2006.01); G02F 1/1337 (2006.01); H01Q 21/06 (2006.01); G02F 1/1341 (2006.01); H01Q 13/22 (2006.01); H01Q 3/34 (2006.01); H01Q 19/10 (2006.01);
U.S. Cl.
CPC ...
H01Q 19/06 (2013.01); G02F 1/13 (2013.01); G02F 1/1337 (2013.01); G02F 1/1341 (2013.01); G02F 1/1368 (2013.01); H01L 27/124 (2013.01); H01L 27/1255 (2013.01); H01L 27/1259 (2013.01); H01Q 3/34 (2013.01); H01Q 3/44 (2013.01); H01Q 13/10 (2013.01); H01Q 13/22 (2013.01); H01Q 19/10 (2013.01); H01Q 21/06 (2013.01); H01L 27/1225 (2013.01);
Abstract

A scanning antenna is a scanning antenna in which antenna units are arranged, including a TFT substrate provided with a first dielectric substrate, a TFT, a gate bus line, a source bus line, patch electrodes, and a first alignment film covering the patch electrodes; a slot substrate provided with a second dielectric substrate, a slot electrode, and a second alignment film covering the slot electrode; a liquid crystal layer provided between the TFT substrate and the slot substrate; and a reflective conductive plate. The slot electrode includes slots disposed corresponding to each of the patch electrodes. A sealing portion includes a main sealing portion that defines at least one injection port. Given, among directions orthogonal to a sealing pattern of the main sealing portion in the injection port, a direction from the injection port toward the liquid crystal layer as a flow direction, and a region of the liquid crystal layer close to the injection port and including a region extending in the flow direction from the injection port as a first region, angles between the flow direction and each of an orientation direction regulated by the first alignment film in the first region and an orientation direction regulated by the second alignment film in the first region are 20° or less or 160° or greater.

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