Display device

A display device that has a plurality of optical sensors in a display region thereof, comprising:

• a display panel having a plurality of display pixel circuits and a plurality of sensor pixel circuits;
• a sensor signal processing circuit that processes outputs from the sensor pixel circuits;
• a light source disposed on a rear surface of the display panel;
• a light source control unit that controls the light source such that one frame period in performing an input through the optical sensors includes an ON period of the light source and an OFF period of the light source;
• a driver circuit that outputs a first control signal and a second control signal to the sensor pixel circuits and that performs a reset operation and a read-out operation for the sensor pixel circuits, the first control signal instructing a first detection period that includes the ON period of the light source, the second control signal instructing a second detection period that does not include the ON period of the light source;
• a difference circuit that derives pixel values that represent differences between outputs from the sensor pixel circuits, which correspond to charges that have been accumulated in accordance with incident light during the first detection period, and outputs from the sensor pixel circuits, which correspond to charges that have been accumulated in accordance with incident light during the second detection period;
• a histogram creating unit for extracting a histogram from the pixel values derived by the difference circuit;
• and
• an operation determining unit that determines an operation in accordance with the input through the optical sensors on the basis of the histogram.