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US 12,727,384 B2Granted
Vibration apparatus and sound apparatus including the same
AssigneeLG Display Co., Ltd.
InventorsYuseon Kho, Jaeyoung Lim, Sooyoun Kim, Yongwoo Lee
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Abstract
A vibration apparatus includes a vibration device. The vibration device includes a vibration portion including a piezoelectric material, a first electrode portion at a first surface of the vibration portion and configured as a plurality of circular patterns, and a second electrode portion at a second surface different from the first surface of the vibration portion and configured as a single electrode, and the vibration device generates an ultrasound wave.
Claims5
A vibration apparatus, comprising:
- a vibration device,
- wherein the vibration device comprises:
- a vibration portion including a piezoelectric material;
- an ultrasound electrode portion at a first surface of the vibration portion and configured as a plurality of circular patterns;
- a sound electrode portion configured to surround the ultrasound electrode portion;
- and
- a second electrode portion at a second surface different from the first surface of the vibration portion and configured as a single electrode,
- wherein the vibration device generates an ultrasound wave and a second sound having an audible frequency.
5 more elements
Dependencies are inferred from the claim text.