"allic conductor is applied to the transparent electrode material coating of each of the plastic films, and c) a transparent film having a thickness of from 10 to 200 ??m, particularly preferably from 20 to 100 ??m, comprising thermoplastic polyurethane having a hardness of from Shore A 75 to Shore D 55, preferably from Shore A 75 to Shore A 88, and from 5 to 95 wt. %, particularly preferably from" . . . .