Display device and an operating method thereof

An operating method of a display device including a display panel having a first input sensor and a second input sensor disposed on the display panel, the method comprising:

• receiving a first reception signal and a second reception signal from the first input sensor and the second input sensor, respectively;
• converting the first reception signal and the second reception signal into a first digital reception signal and a second digital reception signal, respectively;
• generating a force signal based on the first digital reception signal and the second digital reception signal;
• and
• converting the force signal into a grip force signal.

A display device, comprising:

• a display panel;
• a first input sensor arranged at a first side of the display panel;
• a second input sensor arranged at a second side of the display panel opposite the first side;
• and
• a readout circuit configured to detect a user's grip force in response to a first signal from the first input sensor and a second signal from the second input sensor.