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:
Apr. 17, 2012
Filed:
Dec. 31, 2008
Sang-hoon Lee, Cheonan-si, KR;
Byung-yun Joo, Seoul, KR;
Min-young Song, Seoul, KR;
Jin-sung Choi, Yongin-si, KR;
Seung-hwan Chung, Anyang-si, KR;
Dong-kwan Kim, Seoul, KR;
Sang-Hoon Lee, Cheonan-si, KR;
Byung-Yun Joo, Seoul, KR;
Min-Young Song, Seoul, KR;
Jin-Sung Choi, Yongin-si, KR;
Seung-Hwan Chung, Anyang-si, KR;
Dong-Kwan Kim, Seoul, KR;
Abstract
An optical sheet includes a base layer, a light-condensing layer and a plurality of light-reflecting portions. The light-condensing layer includes a plurality of light-condensing portions formed on a second surface of the base layer along a first direction extending from a first side surface to a second side surface perpendicular to the first side surface. The light-condensing portions extended in a second direction crossing the first direction at an angle with respect to the side surface. The light-reflecting portions are formed in the first surface along the second direction and corresponding to a plurality of recesses where the light-condensing portions meet each other. The center of the light-reflecting portion is off set from the recesses along the first direction.