摘要:
Security element (1, 1', 1'', 1''', 1'''') for the identification of a security document (100), in particular a banknote, a valuable paper or a paper document, comprising at least one electrically controllable display element (16) and at least one piezoelectric energy source (Ia) which controls the at least one display element. The security element is formed by a flexible multilayered film body comprising the at least one electrically controllable display element containing a display layer (5) having liquid crystals that can be oriented in an electric field, and comprising the at least one piezoelectric energy source which controls the at least one display element and has at least one layer (4) composed of piezoelectric material, wherein the security element has a thickness of at most 70 μm in the direction perpendicular to the plane of the film body.
摘要:
The invention relates to a method for producing a multilayer body, having the following steps: a) providing a support layer on which at least one lighting means, in particular an LED, is arranged; b) providing a decorative layer; and c) injecting a plastic layer onto the support layer and/or the decorative layer in an injection mold. The invention further relates to a multilayer body produced using such a method.
摘要:
Security element (1, 1', 1'', 1''', 1'''') for the identification of a security document (100), in particular a banknote, a valuable paper or a paper document, comprising at least one electrically controllable display element (16) and at least one piezoelectric energy source (Ia) which controls the at least one display element. The security element is formed by a flexible multilayered film body comprising the at least one electrically controllable display element containing a display layer (5) having liquid crystals that can be oriented in an electric field, and comprising the at least one piezoelectric energy source which controls the at least one display element and has at least one layer (4) composed of piezoelectric material, wherein the security element has a thickness of at most 70 μm in the direction perpendicular to the plane of the film body.
摘要:
The invention relates to a security element (1), to a security document (2) having at least one security element (1), to a transfer film (3) having at least one security element (1), and to a method for producing a security element (1), wherein the security element has at least one layer (11) having an electrically controlled variable optical effect. According to the invention, the at least one layer (11) having an electrically controlled variable optical effect contains liquid crystals (12) that can be oriented in an electric field, and the layer (11) having an electrically controlled variable optical effect contains rod-like dye molecules (13), and the orientations of the longitudinal axes (14) of the rod-like dye molecules (13) can vary depending on the orientations of the longitudinal axes (16) of the spatially adjacent liquid crystals (12) that are orientable in the electric field, and/or wherein the liquid crystals (12) that are orientable in the electric field are such that the liquid crystals (12) that are orientable in the electric field act simultaneously as dye molecules.
摘要:
The invention relates to a multi-layered foil body (1) for marking a security document, in particular a banknote. The foil body (1) has at least one colour filter layer (2) and at least one change layer (4) with an electrically controllable transmittance and/or an electrically controllable colour. The change layer (4) can have liquid crystals (15), which are alignable in an electric field, such as a PDLC layer. The foil body (1) preferably comprises two differently coloured colour filter layers (2, 3) and a change layer (4) which is disposed therebetween. The invention furthermore relates to a security element (10) having at least one aforementioned foil body and a piezoelectric energy source (8) which controls the change layer (4).