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:
Feb. 25, 2014
Filed:
Nov. 19, 2010
Toshiyuki Amimoto, Gunma, JP;
Masaki Tsubokura, Chiba, JP;
Tomohiro Maeyama, Kanagawa, JP;
Panasonic Liquid Crystal Display Co., Ltd., Osaka, JP;
Abstract
A liquid crystal display device capable of efficiently obtaining a high brightness with reduced unevenness in brightness using a single light-emitting section is provided. The liquid crystal display device includes: a liquid crystal panel for controlling display by changing orientation of a liquid crystal composition; a single cylindrical light-source section (); and a reflecting section () provided so that the single cylindrical light-source section is sandwiched between the reflecting section and the liquid crystal panel, for reflecting the light emitted from the single cylindrical light-source section () toward the liquid crystal panel, in which at least a part of a sectional shape of a reflecting surface of the reflecting section () in a cross section perpendicular to an axial direction of the single cylindrical light-source section () is formed based on a parabola whose focal point is a position of the single cylindrical light source section ().