Lg Innotek Co., Ltd.

Dong Hyeok Choi

Seok Bae

In Seong Sohn

Jung Eun Lee

Young Jae Lee

Jong Soo Han

A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.

Magnetic sheet and wireless power module comprising same

An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.

Antenna module comprising shield layer and wireless power receiving device

A permanent magnet of an embodiment comprises: a base magnet represented by a-b-c (a includes a rare earth-based element, b includes a transition element, and c includes boron (B)); and a coating layer coated on a surface of the base magnet, wherein the coating layer comprises a compound containing a metal having magnetism, the compound including: a phosphor (P); and a metal belonging to the fourth period in the periodic table.

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Seoul, South Korea

Dong Hyeok Choi