A piezoelectric film loudspeaker comprising a diaphragm having a flexible piezoelectric
film and electrodes formed on the both surfaces of the flexible piezoelectric film
and a frame for supporting a side of the diaphragm, wherein said respective electrodes
disposed on the both surfaces are divided into a plurality of sections. Each area
of the divided electrodes is formed differently from one another, and each curvature
of the film in the divided section also is formed differently from one another.
Thus, the piezoelectric film loudspeaker having a predetermined area can have a
broad band.
