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. 01, 2015
Filed:
Mar. 15, 2010
Applicants:
Kohji Fujiwara, Osaka, JP;
Takayuki Murai, Osaka, JP;
Kingfoong Lew, Osaka, JP;
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); G02F 1/1337 (2006.01); F21S 10/00 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133603 (2013.01); G02F 2001/133613 (2013.01);
Abstract
Provided is a backlight unit () which includes a plurality of LEDs (). The LEDs () are two-dimensionally disposed, thereby having the collection of light emitted from the LEDs () in a state of planar light. Furthermore, the backlight unit () has the planar light divided into a plurality of sections, and includes a luminance variable system (for instance, a system having disposition which a difference in the density of LEDs ()), which can change luminance, corresponding to each section.