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:
Jul. 26, 2011
Filed:
Mar. 03, 2009
Sang-choll Han, Daejeon, KR;
Jung-min Ko, Daejeon, KR;
Seung-tae OH, Daejeon, KR;
Yune-hyoun Kim, Daejeon, KR;
Byung-su Park, Daejeon, KR;
Sang-Choll Han, Daejeon, KR;
Jung-Min Ko, Daejeon, KR;
Seung-Tae Oh, Daejeon, KR;
Yune-Hyoun Kim, Daejeon, KR;
Byung-Su Park, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
There is provided a process of making a mold for optical films. The process of making a mold for optical films comprises: etching a stereostructure in a surface of the mold having a flat surface or an engraved convex and concave surface, by using a laser beam. The process of making a mold for optical films may be useful to easily mark spots, to control the height of protrusions and the position where the protrusions are formed, and also to form the protrusions having constant depths even in a curved surface such as a convex and concave surface.