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. 26, 2016
Filed:
Sep. 11, 2012
Tomonori Nishino, Mobara, JP;
Syou Yanagisawa, Mobara, JP;
Masanari Saitou, Mobara, JP;
Yoshinori Aoki, Mobara, JP;
Nobuyuki Ishige, Shirako, JP;
Tomonori Nishino, Mobara, JP;
Syou Yanagisawa, Mobara, JP;
Masanari Saitou, Mobara, JP;
Yoshinori Aoki, Mobara, JP;
Nobuyuki Ishige, Shirako, JP;
JAPAN DISPLAY INC., Tokyo, JP;
Abstract
An illuminating device includes: a light source; a light guide plate which converts light emitted from the light source into a surface light ray and emits the surface light ray through a front surface of the light guide plate; and an optical sheet which changes a propagation direction of the surface light ray emitted from the light guide plate. The light source is arranged in opposition to one end surface of the light guide plate. A polarization state converting structure to convert a polarization state of the light propagating through the light guide plate is provided in a rear surface of the light guide plate. The polarization state converting structure contains an inclination plane having a ridge line extending in a direction perpendicular to the extension direction of the one end surface.