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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 11189914 B1

PDFFull Text
Date of Patent:
Nov. 30, 2021

Filed:

Sep. 22, 2017

Liquid crystal cell and scanning antenna

Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventors:

Kei Shinada, Sakai, JP;

Isamu Miyake, Sakai, JP;

Takashi Katayama, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Dimary S Lopez Cruz

Assistant Examiner:

Michael M Bouizza

Int. Cl.
CPC ...
H01Q 1/38 (2006.01); H01Q 19/10 (2006.01); H01Q 21/06 (2006.01); C09K 19/10 (2006.01); C09K 19/56 (2006.01); H01L 27/12 (2006.01); H01Q 13/22 (2006.01); G02F 1/1337 (2006.01); H01Q 3/34 (2006.01); G02F 1/13 (2006.01); C09K 19/18 (2006.01); H01Q 3/44 (2006.01); C09K 19/04 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/38 (2013.01); C09K 19/10 (2013.01); C09K 19/18 (2013.01); C09K 19/56 (2013.01); G02F 1/13 (2013.01); G02F 1/1337 (2013.01); H01L 27/1214 (2013.01); H01L 27/1248 (2013.01); H01L 27/1255 (2013.01); H01Q 3/34 (2013.01); H01Q 3/44 (2013.01); H01Q 13/22 (2013.01); H01Q 19/10 (2013.01); H01Q 21/06 (2013.01); H01Q 21/064 (2013.01); C09K 2019/0448 (2013.01); H01L 27/124 (2013.01); H01L 27/1222 (2013.01); H01L 29/78669 (2013.01);
Abstract

A liquid crystal cell according to the present invention includes: a TFT substrate including a first dielectric substrate, TFTs supported on the first dielectric substrate, and patch electrodes electrically connected to the TFTs; a slot substrate including a second dielectric substrate and a slot electrode including slots supported on the second dielectric substrate; a liquid crystal layer interposed between the TFT substrate and the slot substrate which are arranged in a form in which the patch electrode and the slot electrode face each other; antenna units each including one of the patch electrodes and the slot electrode including at least one of the slots arranged corresponding to the one of the patch electrodes; and alignment films formed on surfaces of both of the TFT substrate and the slot substrate facing the liquid crystal layer, made of a polyimide-based resin, and having a relative dielectric constant of 3.8 or more.

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