| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the generation of migration and to accelerate touch position detection without inviting the rise of a manufacture cost or the decline of convenience. <P>SOLUTION: A reception part 6 for selecting an electrode to perform reception from a plurality of reception electrodes 3, receiving charging/discharging current signals responding to driving signals applied to a transmission electrode, and outputting a level signal for each electrode intersection is provided with a changeover switch 23 for switching a potential to be given to the reception electrode when the reception electrode is not selected. By the changeover switch, the potential to be given to the reception electrode is switched between a first non-selection time potential Vrb1 almost the same as a selection time potential Vra given to the reception electrode by being energized with a reception signal processing part 22 when the reception electrode is selected and a second non-selection time potential Vrb2 almost the same as the non-selection time potential given to the transmission electrode when the transmission electrode is not selected. <P>COPYRIGHT: (C)2012,JPO&INPIT |
