Touch apparatus and touch detection method thereof

A touch apparatus comprising:

• a touch panel configured to include a plurality of touch electrodes;
• and a touch driver configured to apply a first driving signal to a first touch electrode of the touch electrodes during a first period and receive a first detection signal generated by a first touch object, and to apply a second driving signal to the touch electrodes during a second period subsequent to the first period and receive a second detection signal generated by resonance of the second touch object in response to the second driving signal when the second driving signal has a disable level, during the second period;
• and
• a touch controller configured to determine a detection signal as a valid touch signal based on whether a signal strength of the detection signal received in response to the first driving signal exceeds a first threshold during the first period or whether a signal strength of the detection signal received in response to the second driving signal exceeds a second threshold during the second period,
• wherein the first driving signal and the second signal are alternating signals;
• wherein the touch driver applies the second driving signal during the first sub period in the second period, and applies a third driving signal having a different ratio of a disable level period to an enable level period to all of the touch electrodes in one repeated cycle by comparing it with the second driving signal during the second sub period in the second period.