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:
Oct. 22, 2013
Filed:
Feb. 09, 2011
Hisanori Sasaki, Osaka, JP;
Shigeru Aruga, Osaka, JP;
Hisanori Sasaki, Osaka, JP;
Shigeru Aruga, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a backlight unit, a plurality of linear light sources arranged in a first direction are accommodated in a case so that they are covered by the case from a side opposite to an illuminated object. In the case, a reflective sheet is disposed on the bottom surface of the case, and a pair of supporting members are disposed to be spaced from each other in the extending direction of the linear light sources. The supporting members support the diffuser plate and the illuminated object. The diffuser plate has, on the light exit surface thereof, a first light-controlling portion having a pattern of stripes parallel to the linear light sources, and a pair of second light-controlling portions extending in the arrangement direction at positions corresponding to the supporting members.