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:
Dec. 15, 2009
Filed:
Sep. 07, 2007
Jae Heon Noh, Yongin-si, KR;
Dong Seob Jang, Seoul, KR;
Seong Ho Youn, Suwon-si, KR;
Sun Gil Kim, Suwon-si, KR;
Hye Eun Park, Suwon-si, KR;
Yong Joon Choi, Suwon-si, KR;
Kyong Hak Seo, Suwon-si, KR;
Jae Heon Noh, Yongin-si, KR;
Dong Seob Jang, Seoul, KR;
Seong Ho Youn, Suwon-si, KR;
Sun Gil Kim, Suwon-si, KR;
Hye Eun Park, Suwon-si, KR;
Yong Joon Choi, Suwon-si, KR;
Kyong Hak Seo, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A back light unit, in which bright lines produced from point light sources, light emitting diodes, in an oblique direction are removed, so that brightness can be uniformly maintained at a liquid crystal panel. The back light unit includes a prism light guide plate, light emitting diodes provided on one side of the prism light guide plate, and a bright-line dead section provided to the prism light guide plate so as to uniformly scatter light of each light condensing section generated by light emitted from the light emitting diodes, to prevent a spectrum of the light in a specific direction, and to prevent bright lines from being produced.