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:
Aug. 14, 2012
Filed:
Dec. 17, 2010
Young-chan Kim, Incheon, KR;
Min-young Song, Asan-si, KR;
Jung-han Shin, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
Provided is a backlight unit of a liquid crystal display (LCD). The backlight unit includes: a plurality of light guide plates (LGPs) arranged in M layers and separated from each other by a predetermined gap, wherein M is a natural number equal to or greater than two, a light source unit disposed on at least one side surface of each of the LGPs and including N light source blocks whose brightnesses are controlled individually, and wherein N is a natural number equal to or greater than two. The backlight unit further includes a plurality of light output regions defined by each of the LGPs being divided into a plurality of regions according to a distance from the light source unit and by a plurality of light output patterns being formed in some of the regions, and wherein the light output regions do not overlap each other in a stacking direction of the LGPs and are arranged to correspond to a whole surface of the LGPs.