Panel driving integrated circuit, display device and integrated circuit

A display device comprising:

• a panel on which pixels are defined by intersections of a plurality of data lines and a plurality of gate lines and sensor electrodes are disposed;
• a timing control integrated circuit generating reference clock signals used for driving said gate line;
• a panel driving integrated circuit;
• and
• a level shifter,
• said panel driving integrated circuit comprising:
• a data driving circuit receiving image data having a first ground voltage as a reference voltage from said timing control circuit through a first communication, converting the reference voltage of said image data from said first ground voltage into said second ground voltage through a reference voltage conversion, converting said image data into a data signal having said second ground voltage as a reference voltage, and supplying said signal to said data line;
• a sensing circuit converting the sensing signals for said sensor electrodes into the sensing data, converting the reference voltage of said sensing data from said second ground voltage into said first ground voltage through a reference voltage conversion, and transmitting said sensing data through the second communication;
• a reference voltage conversion circuit receiving said reference clock signal and converting the reference voltage of said reference clock signal from said first ground voltage into said second ground voltage through the reference voltage conversion;
• and
• said level shifter generating a plurality of clock signals for driving said gate lines by shifting the voltage levels of said reference clock signal.

An integrated circuit comprising:

• an image data receiving part receiving image data having a first ground voltage as a reference voltage from a timing control circuit through a first communication;
• a data signal part converting said image data into a data signal having a second ground voltage as a reference voltage and then supplying said signal to the data line;
• and
• a reference voltage conversion part converting the reference voltage of the reference clock signal received from said timing control circuit from said first ground voltage into said second ground voltage through a reference voltage conversion and transmitting said converted reference clock signals to said level shifter.