| 摘要 |
<p>The present invention relates to a touch detecting device having an identical value of an RC constant irrespective of the position of a sensor pad. The touch detecting device comprises: a plurality of sensor pads arranged in the shape of a matrix composed of multiple rows and multiple columns, and forming touch capacitances in relation to a touch input device; a plurality of signal wires extending from the sensor pads; a touch detection part selectively connected to one among the signal wires to output various signals according to the touch capacitances; and a variable resistance arranged in the touch detection part to be connected in series to the signal wires, wherein the resistance value of the variable resistance varies according to the length of the selected signal wire.</p> |
