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:
Dec. 28, 2010
Filed:
Jan. 17, 2008
Yasushi Shiga, Tokyo, JP;
Yuki Tanaka, Kanagawa, JP;
Mio Ishida, Kanagawa, JP;
Kazuhiro Tanaka, Tokyo, JP;
Keita Kaifu, Tokyo, JP;
Yukihiro Sano, Tokyo, JP;
Yasushi Shiga, Tokyo, JP;
Yuki Tanaka, Kanagawa, JP;
Mio Ishida, Kanagawa, JP;
Kazuhiro Tanaka, Tokyo, JP;
Keita Kaifu, Tokyo, JP;
Yukihiro Sano, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided are a dichroic dye composition in which a solubility of the dichroic dye with respect to liquid-crystal is sufficiently high and a wavelength dispersion of absorbance is small in a wide wavelength range, and a black guest-host liquid-crystal composition indicating high order parameters using such a dichroic dye composition and a liquid-crystal element having high contrast. The dichroic dye composition includes at least one dichroic dye selected from Group (I) shown below, at least one dichroic dye selected from Group (II) shown below, and at least one dichroic dye selected from Group (III) shown below.