Patent ID: 7674347

Claim:
Method for the production of a combined piezo/luminescent film for use as actuating element, especially in vehicles, comprising the steps: providing a film-type base material; applying a piezoelectric varnish onto the base material at least in a first partial area so as to form a piezoelectric switch surface serving to input commands in the first partial area, the piezoelectric varnish being electrically contacted by means of conductive areas; applying an electroluminescent varnish onto the base material in at least a second partial area and connecting the electroluminescent varnish via electrodes, whereby the electroluminescent varnish can be activated so as to be able to illuminate the switch surface in the second partial area by the activated electroluminescent varnish; and covering at least one of the first and second partial areas with a top layer that is bonded to the base material.