Display device and touch device

A touch device comprising:

• a first touch array comprising a plurality of touch electrodes and a plurality of sensing electrodes;
• a second touch array comprising a plurality of touch electrodes and a plurality of sensing electrodes;
• a first touch driver that applies a first touch driving signal to the first touch array in response to a frame synchronization signal;
• a second touch driver that applies a second touch driving signal to the second touch array in response to the frame synchronization signal;
• and
• a common line commonly connected to the first and second touch drivers to transmit the frame synchronization signal,
• wherein a first frequency of pulses included in the first touch driving signal is different from a second frequency of pulses included in the second touch driving signal.

An electronic device comprising:

• a first display panel;
• a second display panel disposed adjacent to the first display panel;
• a first touch array comprising a plurality of touch electrodes and a plurality of sensing electrodes, the first touch array disposed on the first display panel;
• a second touch array comprising a plurality of touch electrodes and a plurality of sensing electrodes, the second touch array disposed on the second display panel;
• a first touch driver that applies a first touch driving signal at a first frequency to the first touch array in response to a frame synchronization signal;
• and
• a second touch driver that applies a second touch driving signal to the second touch array at a second frequency different from the first frequency in response to the frame synchronization signal,
• wherein the first frequency and the second frequency are frequencies that minimize an influence of noise caused by the touch driving signals acting on the first and second display panels.