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:
Aug. 02, 2011
Filed:
Dec. 04, 2008
Sang-hoon Lee, Cheonan-si, KR;
Byung-yun Joo, Seoul, KR;
Min-young Song, Seoul, KR;
Jin-sung Choi, Cheonan-si, KR;
Seung-hwan Chung, Seongnam-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, Cheonan-si, KR;
Seung-Hwan Chung, Seongnam-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 base layer includes a first surface and a second surface. The light-condensing layer includes a plurality of light-condensing portions with a first pitch. The light-condensing portions are formed along a first direction of the second surface. The light-reflecting portions are formed in the first surface to be spaced apart from each other along the -first direction in correspondence with a plurality of grooves, each groove formed between two light-condensing portions. An interval distance between a center of the light-condensing portion and an edge of the light-reflecting portion increases when moving toward the edge of the first surface from a center of the first surface along the first direction. Therefore, the number of the optical sheets used for the display device may be reduced.