Display device

A display device comprising:

• a substrate;
• a plurality of light-emitting elements disposed on the substrate;
• at least one inorganic or organic layer disposed on the plurality of light-emitting elements;
• a first sound electrode and a second sound electrode disposed on the at least one inorganic or organic layer, the first sound electrode electrically separated from the second sound electrode;
• and
• a driving electrode and a sensing electrode disposed on the first sound electrode and the second sound electrode, the driving electrode electrically separated from the sensing electrode, and
• wherein a first sound driving voltage is applied to the first sound electrode, and a second sound driving voltage is applied to the second sound electrode, and
• wherein a touch is sensed using the driving electrode and the sensing electrode.