15-03-2016 дата публикации
Номер: KR1020160029722A
Принадлежит:
The present invention relates to a security film. The security film includes: a base material layer; a nanowire grid polarizing layer including a linear grid pattern; and at least one information identification layer. The base material layer, the nanowire grid polarizing layer, and the information identification layer are laminated so that at least one information identification layer exists on at least one position among an outer surface in contact with the base material layer, an inner surface between the base material layer and the nanowire grid polarizing layer, and an outer surface in contact with the nanowire grid polarizing layer. According to the present invention, since a nanowire grid polarizing film, manufactured through a nano-imprinting method, is combined with a variety of security factors, a high dimensional information storage medium is provided, and therefore, security against illegal counterfeiting and copying is enhanced. COPYRIGHT KIPO 2016 (AA) Reflecting mode (BB) ...
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