Touching apparatus and touching detecting method thereof

摘要

A touching apparatus and a touching detecting method thereof are provided. The touching detecting method is adapted for a touch panel. The touch panel has a plurality of touching rows and a plurality of touching columns. The touching detecting method includes: performing a mutual-capacitor touching detection and a self-capacitor touching detection alternatingly to the touch panel for obtaining a mutual-capacitor detection result and a self-capacitor detection result, respectively; and obtaining position information of at least one touch point on the touch panel by an operation based on the mutual-capacitor detection result and the self-capacitor detection result.

主权项

1. A touching detecting method for a touch panel having a plurality of touching rows and a plurality of touching columns, the method comprises:
performing a mutual-capacitor touching detection and a self-capacitor touching detection alternatingly to the touch panel for obtaining a mutual-capacitor detection result and a self-capacitor detection result, respectively; obtaining position information of at least one touch point on the touch panel by performing an operation based on the mutual-capacitor detection result and the self-capacitor detection result; determining whether none of absolute values of the plurality of mutual-capacitor capacitance variations included in the mutual-capacitor detection result falls within an invalid detecting range after the step of performing the mutual-capacitor touching detection is completed; performing the mutual-capacitor touching detection continuously merely when none of the absolute values of the plurality of mutual-capacitor capacitance variations falls within the invalid detecting range; and performing the self-capacitor touching detection merely when at least one of the absolute values of the plurality of mutual-capacitor capacitance variations falls within the invalid detecting range.