| 摘要 |
A loudspeaker comprises a support (8) which may be a portion of the housing of an electronic device and a diaphragm (21) mounted on the support (8). A piezoelectric actuator (1) arranged to bend on activation providing relative movement between two ends of the actuator (1) is coupled at each of its ends (11) and (12) to the diaphragm (21) to vibrate the diaphragm (21) on activation and generate sound. One end of the actuator (1) coupled to a portion (62) of the diaphragm (21) at the edge of the diaphragm (21) is fixed relative to the support (8).
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