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 8212985 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 03, 2012

Filed:

Aug. 24, 2007
Applicants:

Hidenobu Kuroi, Kanagawa, JP;

Akiko Toriyama, Kanagawa, JP;

Yasuhiro Shirasaka, Kanagawa, JP;

Hisashi Kadota, Kanagawa, JP;

Hajime Tsuchiya, Kumamoto, JP;

Jun Takahama, Kumamoto, JP;

Inventors:

Hidenobu Kuroi, Kanagawa, JP;

Akiko Toriyama, Kanagawa, JP;

Yasuhiro Shirasaka, Kanagawa, JP;

Hisashi Kadota, Kanagawa, JP;

Hajime Tsuchiya, Kumamoto, JP;

Jun Takahama, Kumamoto, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed herein is a liquid crystal display element in which a liquid crystal layer is interposed between a pair of substrates laminated to each other by a sealing material such that alignment films are opposed to each other with a predetermined gap between the alignment films, wherein a range of dielectric anisotropy Δε of a material for the liquid crystal layer at a measured temperature of 70° C. is −4.5 to less than zero.


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