公开(公告)号：US20180217308A1

公开(公告)日：2018-08-02

申请号：US15505956

申请日：2015-09-07

Applicant: KOLON INDUSTRIES, INC.

Inventor： Si Wook NAM ,  Kyung Jong KIM ,  Jin Young KIM ,  Chong Won KIM

IPC: G02B5/30 ,  G02B5/18 ,  G02B5/02 ,  B42D25/328 ,  G03H1/02 ,  G02F1/1335

CPC classification number: G02B5/3058 ,  B42D25/324 ,  B42D25/328 ,  B42D25/36 ,  B42D25/373 ,  B42D25/445 ,  G02B5/0215 ,  G02B5/18 ,  G02B5/203 ,  G02B5/32 ,  G02F1/1335 ,  G03H1/028

Abstract: Disclosed is a security film, including: a substrate layer, a nano-wire grid polarizer layer having a line grid pattern, and at least one information identification layer, wherein the substrate layer, the nano-wire grid polarizer layer and the information identification layer are stacked so that at least one information identification layer is provided in at least one position selected from among a position on an outer surface of the substrate layer, a position between the substrate layer and the nano-wire grid polarizer layer, and a position on an outer surface of the nano-wire grid polarizer layer. This invention can provide a high-dimensional information storage medium by combining a nano-wire grid polarization film, manufactured via a nano-imprinting process, with various security elements, making it possible to enhance security against illegal counterfeiting and copying.