| 摘要 |
PROBLEM TO BE SOLVED: To reduce influence of a floating conductor while suppressing deterioration of detection sensitivity.SOLUTION: A capacitance type touchpad 1 is placed on one side of a substrate 2 so that a driving electrode and a sensing electrode are capacity coupled. According to capacity coupling, detection voltage is outputted by applying of driver voltage to the driving electrode with the sensing electrode. The capacitance type touchpad 1 detects the presence or absence of an object on the substrate based on the detection voltage of the sensing electrode. A ground pattern 5 is arranged on one side of the substrate to avoid in between the driving electrode and the sensing electrode. |
