Patent ID: 8525953

Claim:
A display device in which a plurality of optical sensors are arranged in a display region, the display device comprising: a display panel that includes a plurality of display pixel circuits and a plurality of sensor pixel circuits; a light source that is turned on for a predetermined time in a one-frame period; and a drive circuit that outputs, to the sensor pixel circuits, a first control signal indicating a sensing period at time when the light source is turned on and a second control signal indicating a sensing period when the light source is turned off, and performs reset for and read from the sensor pixel circuits, wherein the sensor pixel circuits include: a first sensor pixel circuit that senses light during the sensing period when the light source is turned on and retains the amount of sensed light otherwise, in accordance with the first control signal; and a second sensor pixel circuit that senses light during the sensing period when the light source is turned off and retains the amount of sensed light otherwise, in accordance with the second control signal, and the drive circuit performs the read from the first and second sensor pixel circuits in a line sequential manner during a period other than the sensing period when the light source is turned on and the sensing period when the light source is turned off.