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:
Nov. 08, 2011
Filed:
Aug. 28, 2009
Hyo Jin Kim, Gyeongbuk, KR;
Jae Won Shin, Gyeongbuk, KR;
Dal Jae Lee, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A backlight unit having improved reliability is disclosed. The backlight unit includes a support main formed of a mold having a rectangular frame shape, a plurality of LEDs arranged at a side of the support main, a light guide plate arranged parallel to the plurality of LEDs and converting a point light to a surface light, an optical sensor unit arranged at the other side of the support main and detecting light emitted from the plurality of LEDs, and a light incident hole formed at the other side of the support main corresponding to the optical sensor unit and guiding light output from the light guide plate to proceed toward the optical sensor unit by changing a path of the light.