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. 02, 2012
Filed:
Feb. 11, 2010
Chan Sung Jeong, Gyeonggi-do, KR;
Jung Nam an, Gyeonggi-do, KR;
Min Ho Kim, Gyeonggi-do, KR;
Seung SE Kim, Gyeonggi-do, KR;
Hoon Hur, Gyeonggi-do, KR;
Won DO Kee, Gyeonggi-do, KR;
Chan Sung Jeong, Gyeonggi-do, KR;
Jung Nam An, Gyeonggi-do, KR;
Min Ho Kim, Gyeonggi-do, KR;
Seung Se Kim, Gyeonggi-do, KR;
Hoon Hur, Gyeonggi-do, KR;
Won Do Kee, Gyeonggi-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A back-light unit including a plurality of substrates, a plurality of light sources respectively disposed on the plurality of substrates and configured to emit light, and N (N≧2) light guide plates respectively disposed adjacent to the plurality of light sources, each light guide plate including a light incidence part having a light incidence surface for receiving light emitted in a first direction from a corresponding light source, and a light emission part for emitting the received incident light in a second direction different than the first direction. Further, at least one of the light guide plates includes light-extracting surface patterns disposed on the light emission part, and the light-extracting surface patterns comprise a first region of light-extracting surface patterns having a higher pattern-density than a second region of light-extracting surface patterns next to the first region.