| 摘要 |
<p>PURPOSE: A digital apparatus of a touch screen is provided to detect an exact touch position by compensating the coordinate of the touch screen based on a parasitic component of a palm touch. CONSTITUTION: A touch screen(120) comprises stripe lines which are perpendicularly crossed with each other. If a user touches the touch screen, a detection unit(150) measures voltage applied to a reference node of the strip lines. A coordinate correction part(160) compensates the touch position by comparing a reference voltage and the voltage of the reference node. The detection unit connects the strip line to a ground terminal in order to performing calculation of the coordinate of the touch position.</p> |
