Patent ID: 11882398
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 23:
24. A vibration apparatus, comprising:
a lower vibration structure;
an upper vibration structure on the lower vibration structure; and
an adhesive member between the lower vibration structure and the upper vibration structure,
wherein the lower vibration structure and the upper vibration structure are configured to generate sound waves having different frequencies,
wherein the lower vibration structure comprises a first region and a second region, and
wherein the upper vibration structure comprises:
a first upper vibration structure on the first region of the lower vibration structure; and
a second upper vibration structure on the second region of the lower vibration structure,

wherein each of the lower vibration structure, the first upper vibration structure, and the second upper vibration structure comprises:
a first base member;
a second base member overlapping the first base member; and
at least one vibration generating part disposed between the first base member and the second base member, and

wherein at least one vibration generating part disposed at each of the first upper vibration structure and the second upper vibration structure overlaps at least one vibration generating part disposed at the lower vibration structure.