Provided is a touch screen device which includes an Electromagnetic Resonance (EMR) sensing panel for sensing, an input from an electronic pen, a display panel that is installed on a top layer portion of the EMR sensing panel, configured to receive a control signal or graphic signal from outside, and displays a corresponding image, a bracket that is formed in the form of a plate beneath the EMR sensing panel and the display panel and has an extension portion that extends from the corresponding portions of the EMR sensing panel and the display panel, and a frequency compensating plate that is formed of a soft magnet installed on the extension portion.