公开(公告)号：US20220233887A1

公开(公告)日：2022-07-28

申请号：US17605300

申请日：2020-04-10

Applicant: LG INNOTEK CO., LTD.

Inventor： Beom Sun HONG ,  Min Seok OH ,  Kab Young KIM ,  Sang Young LEE

IPC: A61N7/00 ,  B06B1/06 ,  A41D13/11

Abstract: An ultrasound mask according to an embodiment comprises a plurality of interconnection wirings comprising first wirings arranged in a first direction and second wirings arranged in a second direction different from the first direction, each of the first and second wirings being disposed between piezoelectric members, wherein the interconnection wirings come in contact with a protective layer.

公开(公告)号：US20220362100A1

公开(公告)日：2022-11-17

申请号：US17761245

申请日：2020-09-01

Applicant: LG INNOTEK CO., LTD.

Inventor： Beom Sun HONG ,  Hae Rok SON ,  Gyu Lin LEE ,  Min Seok OH ,  Mi Sun LEE

IPC: A61H23/02

Abstract: A mask according to an embodiment comprises: a body having a shape corresponding to a user's face; a first recess disposed on one surface of the body, opposite to the user's face; and a piezoelectric part disposed in the first recess, wherein the first recess has a shape recessed outward from the one surface of the body and is disposed in a region corresponding to at least one of the user's brow region and eye rim regions, and the piezoelectric unit protrudes beyond the one surface toward the user.

公开(公告)号：US20220160111A1

公开(公告)日：2022-05-26

申请号：US17437083

申请日：2020-02-26

Applicant: LG INNOTEK CO., LTD.

Inventor： Do Hee KEUM ,  Min Seok OH ,  Sang Young LEE

IPC: A45D44/00

Abstract: An ultrasonic mask according to an embodiment comprises: a first substrate; a first wire disposed on the upper surface of the first substrate; a second substrate disposed above the first substrate; a second wire disposed on the lower surface of the second substrate; a piezoelectric member between the first substrate and the second substrate; a first electrode connected to the first wire and disposed on the lower surface of the piezoelectric member; and a second electrode connected to the second wire and disposed on the upper surface of the piezoelectric member, wherein the first wire and the second wire have curvatures (mm) of 5R to 15R, and the piezoelectric member generates an ultrasonic wave having a frequency band of 20 kHz to 1 MHz.