MAGNETIC SHIELDING SHEET FOR DIGITIZER, MANUFACTURING METHOD THEREOF, AND PORTABLE TERMINAL EQUIPMENT USING THE SAME

摘要

The present invention relates to a magnetic field shielding sheet for digitizer which is capable of minimizing effects on a terrestrial magnetism sensor, shielding for a magnetic field generated from various components in a main body of portable terminal equipment when the portable terminal equipment is provided with a digitizer function, and improving the sensitivity of the digitizer function, and a manufacturing method for the same, and portable terminal equipment using the same. The magnetic field shielding sheet according to the present invention includes: at least one-layered thin plate magnetic sheet which is formed of an Fe-based amorphous alloy and flake-treated to be divided into multiple fine fragments; a protective film which is bonded to one side surface of the thin plate magnetic sheet by using a first bonding layer; and a double-sided tape which is bonded to the other side surface of the thin film magnetic sheet by using a second bonding layer provided on the one side surface, wherein the thin plate magnetic sheet is an amorphous ribbon sheet formed of an Fe-based amorphous alloy which is heat-treated at 300-480°C. [Reference numerals] (AA) Inductance(쨉H);(BB) Temperature(°C)