Capacitive button
AssigneeMitsubishi Electric Corporation
InventorsTakuya INOUE, Takeshi YAMAZAKI, Tae ORITA, Takeshi ONO
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Abstract
A capacitive button capable of improving tolerance to electrostatic discharge is provided. The capacitive button includes: a pair of sensor electrodes which are provided side by side; a floating electrode which is arranged on a front side of the pair of sensor electrodes via an insulating layer; and a ground electrode which is arranged so as to surround the floating electrode, and is grounded without being electrically connected with the pair of sensor electrodes and the floating electrode. By providing the configuration, the tolerance to the electrostatic discharge of the capacitive button can be improved.
Claims9
A capacitive button comprising:
- a pair of sensor electrodes which are provided side by side:
- a floating electrode which is arranged on a front side of the pair of sensor electrodes via an insulating layer;
- and
- a ground electrode which is arranged so as to surround the floating electrode and is grounded without being electrically connected with the pair of sensor electrodes and the floating electrode,
- wherein capacitances of the pair of sensor electrodes are detected by a mutual capacitance system each as an excitation electrode and a detection electrode.
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9-13. (canceled)
Dependencies are inferred from the claim text.