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:
Jun. 28, 2011
Filed:
Jul. 15, 2009
Chul Goo Chi, Uiwang-si, KR;
Sung Hyun Joo, Uiwang-si, KR;
O Yong Jeong, Uiwang-si, KR;
Seong Hoon Lee, Uiwang-si, KR;
Chul Goo Chi, Uiwang-si, KR;
Sung Hyun Joo, Uiwang-si, KR;
O Yong Jeong, Uiwang-si, KR;
Seong Hoon Lee, Uiwang-si, KR;
Cheil Industries, Inc., Gumi-si, Kyeongsangbuk-do, KR;
Abstract
A light guide panel includes a lateral side configured to transmit light to an interior of the light guide panel, a rear side configured to reflect light to the interior of the light guide panel, and a front side configured to emit light from the interior of the light guide panel, wherein the rear side includes a repeating pattern of regions, each region having a plurality of wedge-shaped rear prisms disposed therein, and the wedge-shaped rear prisms include at least one of a side having a predetermined radius of curvature and a side having a point of inflection.