Touch screen device
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.
1. A device with a touch screen, comprising:
an Electromagnetic Resonance (EMR) sensing panel configured to sense an input from an electronic pen, the input associated with a magnetic field of a resonance frequency generated in the pen by the EMR sensing panel;
a display panel installed on a top layer portion of the EMR sensing panel, configured to receive a control signal or graphic signal, and display a corresponding image;
a bracket formed in a form of a plate beneath the EMR sensing panel, the bracket comprising:
an installation portion configured to accommodate a bottom and sides of the EMR sensing panel; and
an extension portion that extends from a side of the installation portion and that forms a flat surface at a top end, wherein a height of the flat surface of the extension portion is higher than that of the EMR sensing panel, and wherein the flat surface is substantially parallel with the display panel; and
a frequency compensating plate substantially parallel with the display panel, the frequency compensating plate formed of a soft magnet offsetting a change in the resonance frequency generated in the pen by the extension portion of the bracket, the frequency compensating plate disposed to cover the flat surface of the extension portion substantially parallel with the display panel, the frequency compensating plate positioned higher than the EMR sensing panel, the frequency compensating plate positioned apart from the EMR sensing panel, and the frequency compensating plate installed under a transparent layer that forms an outer layer of the touch screen.
2. The device of claim 1 , wherein the extension portion is formed on at least one of an upper, lower, or edge portion of the bracket.
3. The device of claim 2 , wherein the soft magnet is an alloy thin film in which silicon (Si) is mixed based on either iron (Fe) or a Fe-based amorphous film.
4. The device of claim 1 , wherein the EMR sensing panel comprises substantially orthogonal multiple loop coil patterns, each of loop coil pattern configured to generate a magnetic field of a preset resonance frequency.
5. The device of claim 4 , wherein the multiple loop coil patterns are sequentially selected to repeat an AC power for forming a magnetic field.
6. The device of claim 5 , wherein the multiple loop coil patterns are configured to detect a resonance frequency of the electronic pen.
7. device of claim 6 , wherein each of the multiple loop coil patterns is configured to output a sensing signal to detect the electronic pen.
8. device of claim 1 , wherein the extension portion comprises either a hard key having a physical press key structure or a soft key having a touch input structure.
9. The device of claim 1 , wherein a display window glass is positioned upon the display panel and the frequency compensating plate.
10. The device of claim 1 , wherein a soft key panel is positioned upon the display panel and the frequency compensating plate.
11. The device of claim 1 , wherein a display window glass is positioned on the display panel and a soft key panel.