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.:
Date of Patent:
Sep. 30, 2014
Filed:
Aug. 20, 2010
Mika Oiwa, Chiba, JP;
Shintaro Takeda, Hitachi, JP;
Kotaro Araya, Hitachiota, JP;
Yasushi Tomioka, Hitachinaka, JP;
Yoshiro Mikami, Hitachiota, JP;
Mika Oiwa, Chiba, JP;
Shintaro Takeda, Hitachi, JP;
Kotaro Araya, Hitachiota, JP;
Yasushi Tomioka, Hitachinaka, JP;
Yoshiro Mikami, Hitachiota, JP;
Japan Display Inc., Tokyo, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-Ken, JP;
Abstract
A liquid crystal display includes: a pair of substrates including at least one transparent substrate; a liquid crystal layer disposed between the pair of substrates; and an electrode group formed on at least one of the pair of substrates so as to apply an electric field to the liquid crystal layer. The liquid crystal layer contains at least one kind of liquid crystalline compound and at least one kind of chiral dopant. The concentration c of the chiral dopant is lower than a saturation solubility s thereof. The concentration c of the chiral dopant and a helical twisting power [HTP] of the chiral dopant satisfy a relation of [HTP]·c≧5.5 (μm).