Patent ID: 8387886
Filing Date: 2013-03-05
Classification: B42D,G02F,G07D

Abstract:
1. A security document, comprising: a carrier; and a multi-layer flexible film body applied to the carrier, the multi-layer flexible film body including, apart from the carrier, an electrically controlled display element for generating an optical security feature, an electrical current source for operation of the display element and an optically active diffractive structure, wherein the display element has a plurality of differently coloured and differently charged particles which are arranged between two electrode layers, wherein at least one of the optically active diffractive structure and a microstructure is arranged in overlapping relationship with the electrically controlled display element, wherein an optical appearance of an optical effect produced by at least one of the optically active diffractive structure and the microstructure is controlled by the electrically controlled display element, the multi-layer flexible film body having a replication lacquer layer with the optically active diffractive structure shaped therein for producing an optical-diffraction feature, wherein the security document has an adhesive layer securing the multi-layer flexible film body to the carrier, the optically active diffractive structure being arranged at least region-wise substantially overlapping the entire electrical current source, and wherein the electrical current source is a solar cell, and wherein at least one of the two electrode layers affords the function of an electrode to the display element, an electronic circuit and the solar cell.