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. 21, 2015
Filed:
Jan. 17, 2012
Kookheon Char, Seoul, KR;
Hyunsik Yoon, Seoul, KR;
Hong Hie Lee, Seoul, KR;
Eun-kyeong Bae, Seoul, KR;
Kookheon Char, Seoul, KR;
Hyunsik Yoon, Seoul, KR;
Hong Hie Lee, Seoul, KR;
Kahp-Yang Suh, Seoul, KR;
SNU R&DB FOUNDATION, Seoul, KR;
Abstract
The present invention relates to an optical film comprising a substrate on which an array of structures is formed, wherein a material having a different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated on the surface of the structures, and a manufacturing method thereof. Specifically, the optical film according to one embodiment of the present invention may have a different transparency depending on the direction or can transmit light asymmetrically. Further, the optical film may be applicable to image devices, which need to change brightness or images depending on the angle of view or to display three-dimensional images.