A display device includes: a display panel including a first area having a first light transmissivity and a second area having a second light transmissivity higher than the first light transmissivity; a pressure sensor overlapping the first area; a light emitter overlapping the second area; a light receiver overlapping the second area and spaced from the light emitter; and a processor to control the light emitter and the pressure sensor, and to output a blood pressure signal on a basis of a pressure sensing signal from the pressure sensor and a light sensing signal from the light receiver.