US 12,226,605 B2
Ultrasound mask and skin care device comprising same
Beom Sun Hong, Seoul (KR); Min Seok Oh, Seoul (KR); Kab Young Kim, Seoul (KR); and Sang Young Lee, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/605,300
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Apr. 10, 2020, PCT No. PCT/KR2020/004885
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2020/222439, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 10-2019-0049669 (KR), filed on Apr. 29, 2019; and application No. 10-2019-0058195 (KR), filed on May 17, 2019.
Prior Publication US 2022/0233887 A1, Jul. 28, 2022
Int. Cl. A61M 37/00 (2006.01); A61H 23/00 (2006.01); A61H 23/02 (2006.01); A61N 7/00 (2006.01); B06B 1/06 (2006.01)
CPC A61M 37/0092 (2013.01) [A61H 23/00 (2013.01); A61H 23/0245 (2013.01); A61N 7/00 (2013.01); B06B 1/0622 (2013.01); A61M 2210/0606 (2013.01); A61N 2007/0034 (2013.01); B06B 2201/76 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ultrasound mask comprising:
a first substrate;
a first wiring disposed inside the first substrate;
a second substrate disposed above the first substrate;
a second wiring disposed inside the second substrate;
a plurality of piezoelectric members disposed between the first substrate and the second substrate;
a first electrode connected to the first wiring and disposed on a lower surface of the piezoelectric member;
a second electrode connected to the second wiring and disposed on an upper surface of the piezoelectric member; and
a protective layer disposed between the first substrate, the second substrate, and the piezoelectric member,
wherein the first wiring is arranged in a first direction,
the second wiring is arranged in a second direction different from the first direction,
the first wiring and the second wiring each include a plurality of interconnection wirings disposed between the piezoelectric members, and
the interconnection wiring is in contact with the protective layer.