J-metrics Technology Co., Ltd.

Bruce Cs Chou

Shih Chieh Hsu

A capacitive sensing array device of an electronic apparatus includes sensing electrodes, a shielding conductor layer, a coupling signal source, a constant voltage source and switch modules. The coupling signal source provides a coupling signal coupled to an object. The constant voltage source provides a constant voltage to the shielding conductor layer to form a stable vertical parasitic capacitor between the shielding conductor layer and each sensing electrode. Each switch module is electrically connected to the constant voltage source via the corresponding sensing electrode. When one sensing electrode is selected to perform sensing, the corresponding switch module is configured as an open-circuited state such that the selected sensing electrode is disconnected from the constant voltage source, while the other sensing electrodes are electrically connected to the constant voltage source to form a stable horizontal parasitic capacitor between the selected sensing electrode and the other sensing electrodes.

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Hsinchu, Taiwan

Bruce Cs Chou