SECURITY ELEMENT WITH A COLOR-SHIFT EFFECT AND A METHOD OF PREPARING THE SAME

摘要

The present invention relates to a security element having a discoloration effect and a manufacturing method thereof and, more specifically, to a security element having a discoloration effect having a structure in which an irregular structure is formed on the surface of a substrate and a color conversion layer including an absorber layer, a space layer (or a dielectric layer), and a reflector layer is stacked on the surface of the irregular structure, and a manufacturing method thereof. In the security element according to the present invention, the surface thereof where the color conversion layer is formed assumes a color varied according to angles at which the surface is viewed, and, in particular, the presence of the irregular structure maximizes a discoloration effect, whereby the element can be applied to various products requiring security in order to ascertain the authenticity.