| 摘要 |
PROBLEM TO BE SOLVED: To provide a capacitance sensor capable of preventing an erroneous operation when a conductive operation body approaches a wiring line. SOLUTION: The capacitance sensor in which a plurality of electrodes 3 are arranged and formed at prescribed distances in the X and Y directions of the surface of a dielectric film 1, and a capacitor is formed between a finger approaching the plurality of electrodes 3 and which detects which electrode 3 the finger approaches among the plurality of electrodes 3 as a change in electrostatic capacitance, includes a plurality of wiring lines 4 formed around the plurality of electrodes 3 on the surface of the dielectric film 1 and connected respectively to the plurality of electrodes 3, and a foamed layer 10 for preventing an erroneous operation caused by an approach of the finger to the wiring lines 4. Since the foamed layer 10 is provided between the wiring lines 4 and the finger, it is possible to reduce electrostatic coupling capacitance and suppress the formation of a capacitor. COPYRIGHT: (C)2010,JPO&INPIT
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