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. 19, 2008
Filed:
Dec. 19, 2005
Seoung Ho Lee, Gyeonggi-do, KR;
Sang Gon Lee, Chungcheongbuk-do, KR;
Kang Yoon Kim, Chungcheongbuk-do, KR;
Chang Jong Kim, Chungcheongbuk-do, KR;
Hyun Seok Cho, Daejeon, KR;
Jung Hoon Lee, Chungcheongbuk-do, KR;
Seoung Ho Lee, Gyeonggi-do, KR;
Sang Gon Lee, Chungcheongbuk-do, KR;
Kang Yoon Kim, Chungcheongbuk-do, KR;
Chang Jong Kim, Chungcheongbuk-do, KR;
Hyun Seok Cho, Daejeon, KR;
Jung Hoon Lee, Chungcheongbuk-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention relates to a prism sheet having a side which is perpendicular to the normal of a light guiding plate. The prism sheet includes a prism sheet base film and a plurality of linearly aligned prisms. The prisms are formed on one side of the prism sheet base film. Here, one side of each prism is perpendicular to the prism sheet base film. The prism sheet condenses a light outputted from a light guiding plate using its internal total reflection, and so the efficiency of the light is enhanced.