DISPLAY DEVICE

A display device can include a display panel including a display area in which an image is displayed, the display area having a first display area and a second display area. The display panel includes substrates, at least one metal layer disposed on or over the substrates, a transistor disposed over the at least one metal layer and including an active layer and a gate electrode, a plurality of insulating layers disposed on or over the transistor, a pixel electrode disposed on the plurality of insulating layers, a bank and a light emitting layer disposed on the pixel electrode, an encapsulation layer disposed on or over the bank and the light emitting layer, and a touch sensor disposed over the encapsulation layer. Also, the display device can further include a light receiving device positioned under the display panel and overlapping with the first display area.