US 12,266,643 B2
Display device with piezoelectric actuator
Jaeho Choi, Paju-si (KR); and Heesuk Pang, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Appl. No. 17/778,707
Filed by LG DISPLAY CO., LTD., Seoul (KR)
PCT Filed May 17, 2021, PCT No. PCT/KR2021/006165
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2022/080618, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 10-2020-0134620 (KR), filed on Oct. 16, 2020.
Prior Publication US 2023/0012674 A1, Jan. 19, 2023
Int. Cl. H04R 17/00 (2006.01); H01L 23/00 (2006.01); H01L 25/16 (2023.01); H10K 50/87 (2023.01); H10N 30/88 (2023.01)
CPC H01L 25/165 (2013.01) [H01L 24/32 (2013.01); H01L 24/33 (2013.01); H01L 25/167 (2013.01); H04R 17/00 (2013.01); H10K 50/87 (2023.02); H10N 30/883 (2023.02); H01L 2224/32245 (2013.01); H01L 2224/33181 (2013.01); H04R 2499/15 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display device comprising:
a metal layer having a rear surface in which a groove is provided;
a display panel disposed on a front surface of the metal layer;
a drive disposed in the groove of the metal layer;
a piezoelectric film type actuator disposed at least one side of the drive in the groove of the metal layer, and electrically connected with the drive;
a heat dissipation sheet disposed in the groove and on a front surface of the drive and a front surface of the piezoelectric film type actuator; and
an enclosure provided to cover a rear surface of the drive and a rear surface of the piezoelectric film type actuator.