TOUCH DETECTING METHOD, TOUCH SENSITIVE DEVICE AND PORTABLE ELECTRONIC APPARATUS

摘要

A touch detecting method, a touch sensitive device, and a portable electronic apparatus are provided. The touch detecting method comprises: applying high level signals to the first electrode and/or the second electrode of one induction unit to charge a self capacitor generated by a touch on the one induction unit; grounding the first electrode and the second electrode of the one induction unit respectively; detecting from the first electrode and the second electrode of the one induction unit to obtain a first detecting value and a second detecting value respectively; calculating a ratio between a first resistor between the self capacitor and the first electrode and a second resistor between the self capacitor and the second electrode according to the first detecting value and the second detecting value; and determining a touch position according to the ratio between the first resistor and the second resistor.