| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle speaker system where the desired acoustic feature is obtained without sound discontinuation in the vehicle, views of a driver and occupants are not blocked, and too much room of the vehicle interior is not occupied. SOLUTION: A piezoelectric film loudspeaker 1 is a transparent plane speaker comprising a polymer piezoelectric film and a transparent or translucent electrode. The piezoelectric film loudspeaker 1 is supported by a frame 2 and a transparent resin support plate 3, and mounted on the side part in the vehicle.
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