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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 10203558 B1

PDFFull Text
Date of Patent:
Feb. 12, 2019

Filed:

Aug. 24, 2015

Liquid crystal display device

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Koichi Miyachi, Sakai, JP;

Masanobu Mizusaki, Sakai, JP;

Tsuyoshi Okazaki, Sakai, JP;

Hiroshi Tsuchiya, Sakai, JP;

Isamu Miyake, Sakai, JP;

Toshihiro Matsumoto, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai City, Osaka, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/1339 (2006.01); C08F 22/06 (2006.01); C09K 19/12 (2006.01); C09K 19/30 (2006.01); C09K 19/54 (2006.01); G02F 1/13 (2006.01); C09K 15/08 (2006.01); C09K 15/30 (2006.01); C09K 19/56 (2006.01); G02F 1/1337 (2006.01); G02F 1/1341 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1339 (2013.01); C08F 22/06 (2013.01); C08G 73/1075 (2013.01); C09K 15/08 (2013.01); C09K 15/30 (2013.01); C09K 19/12 (2013.01); C09K 19/30 (2013.01); C09K 19/3003 (2013.01); C09K 19/3098 (2013.01); C09K 19/54 (2013.01); C09K 19/56 (2013.01); G02F 1/13 (2013.01); G02F 1/1341 (2013.01); G02F 1/133711 (2013.01); G02F 1/133788 (2013.01); C09K 2019/122 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3016 (2013.01); G02F 2001/13415 (2013.01); G02F 2001/133397 (2013.01);
Abstract

The present invention provides a liquid crystal display device that maintains a sufficient voltage holding ratio over a long period of time even when a liquid crystal panel having a narrower frame is used and that undergoes no burn-in or no stains on a display screen. The liquid crystal display device of the present invention includes an active-matrix liquid crystal panel and a backlight, wherein the liquid crystal panel includes a liquid crystal layer, a pair of substrates between which the liquid crystal layer is sandwiched, alignment layers disposed on surfaces of the pair of substrates facing the liquid crystal layer, and a seal part that bonds the pair of substrates to each other and that is disposed around the liquid crystal layer, and the liquid crystal panel is formed by a liquid crystal one-drop fill process, wherein the liquid crystal layer includes a liquid crystal material and at least one of a radical scavenger and an antioxidant, and the seal part has a width of 0.6 mm or less at least in part.

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