Patent ID: 8139795

Claim:
A loudspeaker system for an aircraft cabin for passengers, having a support structure, which comprises: multiple flexible flat elements, which together form the internal walls of the cabin, fastening devices for fastening at least some of the flat elements to the support structure, so that the flat elements may oscillate per se, at least one acoustic driver which is connected to one or more flat elements, to induce a bending movement in the one or more flat elements, so that the particular flat element may oscillate as an acoustic diaphragm, the at least one acoustic driver comprising a film-shaped piezoelectric exciter, which is bonded flatly to the flat element, wherein the flat element bonded to an exciter comprises a first cover layer, a second cover layer, and a core layer between them, and the core layer is subdivided in a plane parallel to the first and second cover layers by a horizontal incision in at least one predefined area, wherein the exciter is laminated into the flat element and a further covering layer is located on its rear side.