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:
Mar. 10, 2015
Filed:
Dec. 16, 2009
Applicants:
Min Joo Kim, Seoul, KR;
Dong Hyeok Kim, Namyul-ri, KR;
Jin Ryun Kim, Seoul, KR;
Inventors:
Assignee:
LG Display Co. Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02B 3/00 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02B 3/0006 (2013.01); G02B 5/045 (2013.01); G02F 1/133606 (2013.01); G02F 2001/133607 (2013.01);
Abstract
A backlight unit adapted to implement enhanced light efficiency and uniform brightness is disclosed. The backlight unit includes a plurality of light sources arranged at fixed intervals, a diffusion plate disposed on the plurality of light sources, prism patterns formed on one surface of the diffusion plate, and micro-lens patterns formed on the other surface of the diffusion plate. The vertex angle of each prism pattern is in a range of about 64°˜76°.