| 摘要 |
A touch detecting device (1) includes a rescan unit (16) that sets and rescans a rescan region (170) on an operation surface (100) when a difference between a detection value obtained by scanning the operation surface and a predetermined reference value has a peak value with one of positive and negative signs and an absolute value thereof is greater than an absolute value of a predetermined first threshold (221), the rescan region being set to include the detection point of the peak value with the one sign, and a determination unit (18) determining that a conductive foreign object (9) is attached to the operation surface when a difference between a detection value obtained by rescanning the rescan region and the predetermined reference value has a peak value with another sign and an absolute value thereof is greater than an absolute value of a predetermined second threshold (180). |
