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:
Jun. 14, 2011
Filed:
Jan. 25, 2008
Norihisa Moriya, Tokyo, JP;
Shinji Hayashi, Saitama, JP;
Yuji Nakatsugawa, Matsudo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
The invention provides a retardation-controlling optical member that includes a retardation layer obtained by aligning and fixing crosslinkable liquid crystal molecules and columnar structures disposed on the retardation layer. When a liquid crystal cell is formed by use of the retardation-controlling optical member, the columnar structures are effectively inhibited from subsiding in the retardation layer to locally make the cell gap smaller even when pressure is externally applied in a thickness direction of the liquid crystal cell. A sum total of lower bottom areas of columnar structures disposed on a retardation layer is made larger sufficiently compared to a total area of, in particular, an effective display region of a retardation layer surface where the columnar structures are disposed, whereby pressure applied from a thickness direction is dispersed.