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:
May. 13, 2011
Masahiro Gotou, Tokyo, JP;
Hiroshi Sekiguchi, Tokyo, JP;
Hiroshi Yamamoto, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a display device which can ensure a large viewing angle while maintaining high light source energy use efficiency. The display device, which outputs light emitted from a light sourceto an observer side in a form of an image, comprises: a light guide platewhich has a light output face, a back face, and a side face positioned between the light output face and the back face; a light sourcewhich emits light to the side face of the light guide plate; an optical sheetdisposed on the observer side of the light guide plate; a liquid crystal paneldisposed on the observer side of the optical sheet; and a devicefor enlarging a view disposed on the observer side of the liquid crystal panel.