| CPC H04R 17/00 (2013.01) [G06F 3/016 (2013.01); H04R 1/20 (2013.01); H10N 30/80 (2023.02)] | 18 Claims |
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12. A vibrating apparatus, comprising:
a vibration plate comprising a first area corresponding to a left-sided area, a second area corresponding to a right-sided area, and a third area corresponding to a central area;
a plurality of vibration devices at a rear surface of the vibration plate, the plurality of vibration devices being configured to vibrate the first area and the second area; and
a partition surrounding the plurality of vibration devices,
wherein each of the plurality of vibration devices includes a piezoelectric composite layer comprising a plurality of sub-devices, each of the plurality of sub-devices comprising:
a plurality of first portions including a piezoelectric characteristic; and
a plurality of second portions having flexibility, each of the plurality of second portions being between a respective pair of the plurality of first portions,
wherein the plurality of vibration devices include first and second vibration devices in the first area of the rear surface of the vibration plate, and third and fourth vibration devices in the second area of the rear surface of the vibration plate,
wherein the first and second vibration devices and the third and fourth vibration devices are bilaterally symmetric with respect to the central portion of the vibration plate,
wherein the partition includes a first partition surrounding the first area, a second partition surrounding the second area, and a third partition surrounding the third area, and
wherein the first partition is configured to surround the first and second vibration devices, the second partition is configured to surround the third and fourth vibration devices, and the third partition is disposed between the first partition and the second partition.
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