CPC G06F 1/1605 (2013.01) [G06F 3/16 (2013.01); G09F 9/301 (2013.01); G10K 9/122 (2013.01); G06F 1/1652 (2013.01)] | 15 Claims |
1. A flexible vibration film, comprising:
a vibration layer;
a first electrode layer disposed on a first surface of the vibration layer; and
a second electrode layer disposed on a second surface of the vibration layer,
wherein the vibration layer includes:
a first vibration unit having a first vibration characteristics;
a second vibration unit having a second vibration characteristics; and
a flexible insulating part disposed between the first vibration unit and the second vibration unit,
wherein the first electrode layer includes:
a first part corresponding to the first vibration unit; and
a second part corresponding to the second vibration unit,
wherein the first vibration unit includes:
a plurality of first piezoelectric parts having a first width; and
a plurality of first insulating parts between each of the plurality of the first piezoelectric parts, and
wherein the second vibration unit includes:
a plurality of second piezoelectric parts having a second width; and
a plurality of second insulating parts between each of the plurality of the second piezoelectric parts.
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