▎ 摘　　要

NOVELTY - The security document (20) has a flat substrate with a front side (23) and a back side which is at least partially provided with a cover layer. At least one conductive identification structure (26) distributed over an area is read out through a capacitive area sensor and provided between the substrate and the cover layer. The identification structure has multiple capacitive coupling surfaces (27) and multiple capacitor surfaces (28). The capacitive coupling surfaces are electrically isolated from one another and are each conductively connected to the capacitor surfaces. An opaque ink-accepting layer is provided on an outer side of the cover layer. The identification structure is embodied as an areally structured layer which has a conductive ink at least partially non-transparent in visible and IR wavelength range. USE - Security document e.g. bank note for use on mobile phone or tablet. Uses include but are not limited to check, security, identity card, passport, admission ticket, airline ticket, label, stamp, payment card, document, contract or certificate. ADVANTAGE - The security document enables a high level of detection reliability, good distinguishability from other security documents and a high degree of security against forgery. The relative movement over the security thread or the security strip leads to a dynamic change in the signal in individual sensor areas of the touch display, which enables its unique identification depending on the capacitive and/or magnetic properties or the conductivity of the Security thread or security strip. The capacitive touch-sensitive display surface of the mobile phone or tablet can be equipped with Glyn's Poly-Touch technology. A grid of diamond-shaped indium tin oxide (ITO) sensor fields forms a network of capacitors. The controller integrated in the display scans each individual capacitor at high speed and registers any capacitive change. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for producing the security document. DESCRIPTION OF DRAWING(S) - The drawing shows a top view illustrating the bank note as the security document. 20Security document 23Front side 26Identification structure 27Capacitive coupling surface 28Capacitor surface