Valuable document comprising a security element and method...

Details Valuable document comprising a security element and method... Valuable document comprising a security element and method...

2004-03-31

2008-09-23

Paik, Steven S (Department: 2887)

Registers

Records

C235S491000, C235S492000

Reexamination Certificate

active

07427029

ABSTRACT:
A valuable document comprising at least one security element that is provided with a marking layer in a marking region, the layer containing an electroluminescent pigment and being applied to a carrier body. The electroluminescence of the pigment of one such valuable document must be able to be excited even with comparably low, externally applied field intensities. To this end, a plurality of electrically insulated field displacement elements having a minimum dielectric constant of 100 are distributed over the surface of the marking region, the field displacement elements being at a distance of approximately between 5 μm to 500 μm from each other and compressing the applied field in the gaps thereinbetween.

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