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:
May. 22, 2012
Filed:
Sep. 28, 2009
Jun Hyeak Choi, Uiwang-si, KR;
Man Suk Kim, Uiwang-si, KR;
Hyun Joo Cho, Uiwang-si, KR;
Ju Yeol Choi, Uiwang-si, KR;
Seok Hoon Jang, Uiwang-si, KR;
Jun Hyeak Choi, Uiwang-si, KR;
Man Suk Kim, Uiwang-si, KR;
Hyun Joo Cho, Uiwang-si, KR;
Ju Yeol Choi, Uiwang-si, KR;
Seok Hoon Jang, Uiwang-si, KR;
Cheil Industries, Inc., Gumi-si, Kyeongsangbuk-do, KR;
Abstract
An optical prism sheet includes an optical refracting part including a plurality of unit prisms, the unit prisms each having a predetermined cross-section and being disposed on one side of the optical prism sheet, and fine irregularities having a predetermined roughness and configured to diffuse light, the fine irregularities being on surfaces of the unit prisms and increasing a unit surface area of the optical refracting part by about 1.1 to about 100 times.