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:
Jan. 01, 2013
Filed:
Jan. 14, 2010
Hiroshi Nakamoto, Chiba, JP;
Akiyoshi Tobe, Mobara, JP;
Hiroshi Nakamoto, Chiba, JP;
Akiyoshi Tobe, Mobara, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
Provided is a liquid crystal display device including: an optical switching member; a light guide panel; and a light source, the light guide panel including, on at least one of a front surface and a back surface thereof, a plurality of surface structures including: a first raised surface extending outward being formed as a free surface; a first light reflection surface entering inside from the first raised surface; a second light reflection surface extending outside from the first light reflection surface; and a second raised surface which continues from the second light reflection surface and is formed as a free surface, whereby a liquid crystal display device may be obtained, which includes a thin light guide panel with a thickness of, for example, 1 mm or less.