Title:
MAGNETIC SHEET, MODULE COMPRISING SAME, AND PORTABLE DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2017/061773
Kind Code:
A1
Abstract:
A magnetic sheet is provided. A magnetic sheet according to an embodiment of the present invention comprises: a magnetic layer formed of fragments of a magnetic body which are crushed in order to improve the flexibility of a sheet; and a thin film coating layer formed on at least one surface of the magnetic layer in order to maintain the magnetic layer in a sheet shape and buffer an external force applied to the fragments of the magnetic body. As such, since the magnetic sheet has improved mechanical strength such as tensile characteristics and flexural characteristics, the magnetic sheet is remarkably excellent in flexibility. Therefore, even when the magnetic sheet is stored, transported, or attached to an adherend, or when an electronic device having an adherend with the magnetic sheet attached thereon is used, it is possible to prevent deterioration of physical properties such as permeability due to physical damages such as unintentional cracks in the magnetic body provided on the magnetic sheet, and to adhere the magnetic sheet with excellent adhesion even when there is a step on a surface of the adherend. In addition, since the magnetic sheet can prevent the influence of a magnetic field on components of a mobile terminal, etc. or a human body using the same, significantly increase transmission and reception efficiency and distance of data and/or a wireless power signal, and maintain such functions for a long time, the magnetic sheet is widely applicable to various portable devices, such as mobile devices, smart home appliances, or Internet of Things devices.
Inventors:
LEE JIN HYOUNG (KR)
JOO HYUN TAE (KR)
KIM CHOL HAN (KR)
JOO HYUN TAE (KR)
KIM CHOL HAN (KR)
Application Number:
PCT/KR2016/011149
Publication Date:
April 13, 2017
Filing Date:
October 05, 2016
Export Citation:
Assignee:
AMOGREENTECH CO LTD (KR)
International Classes:
H01F41/02; H01F1/12; H01F1/14; H01F10/08; H01F10/13; H01F10/20; H01F41/32; H02J7/02; H05K9/00
Foreign References:
| KR20150050541A | 2015-05-08 | |||
| KR20130127103A | 2013-11-22 | |||
| KR20130090385A | 2013-08-13 | |||
| KR101244022B1 | 2013-03-14 | |||
| KR101298660B1 | 2013-08-20 |
Other References:
See also references of EP 3361487A4
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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