| 摘要 |
<p>The present invention provides a flat speaker (1), in particular in the a erospace sector, with a panel (2) for generating acoustic signals by vibrati on of the same, and a vibration exciter (3) which is connected to a panel (2 ) and excites this to vibrate. Here the panel (2) has an edge stiffening (11 ...15; 33). This provides the panel (2) with the required stiffness, particu larly against hand pressures, but at the same it guarantees high energy effi ciency of the flat speaker.</p> |
