| 摘要 |
A touch panel unit includes a plurality of electrodes arranged in directions of an X axis and a Y axis. A screening electrode switching control circuit handles each of electrodes arranged in the direction of the X axis as a detecting electrode and handles electrodes arranged in the direction of the Y axis as screening electrodes when an arithmetic unit detects the location of an approach or a touch to or with the touch panel unit in the direction of the X axis, whereas the screening electrode switching control circuit handles the electrodes arranged in the direction of the X axis as the screening electrodes and handles each of the electrodes arranged in the direction of the Y axis as the detecting electrode when the arithmetic unit detects the location of the approach or the touch to or with the touch panel unit in the direction of the Y axis.
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