US 12,470,156 B2
Sound generator comprising piezoelectric device and sound apparatus
Jaehun Ye, Tokyo (JP)
Assigned to LG Display Co., Ltd, (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Dec. 30, 2021, as Appl. No. 17/566,137.
Claims priority of application No. 2021-000737 (JP), filed on Jan. 6, 2021.
Prior Publication US 2022/0216810 A1, Jul. 7, 2022
Int. Cl. H02N 2/00 (2006.01); G06F 3/16 (2006.01); H04R 17/00 (2006.01)
CPC H02N 2/0015 (2013.01) [G06F 3/167 (2013.01); H02N 2/006 (2013.01); H04R 17/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sound generator, comprising:
a piezoelectric device;
a first weight member disposed at a first portion of the piezoelectric device;
a second weight member disposed at a second portion of the piezoelectric device;
a first elastic member disposed at a third portion located between the first portion and the second portion of the piezoelectric device; and
a protection member covering the piezoelectric device, the first weight member, the second weight member and the first elastic member.