A display device includes: a substrate in which a main display area, a first non-display area inside the main display area, and an auxiliary display area between the main display area and the first non-display area are defined; and a display unit including an auxiliary display and a main display. The auxiliary display is disposed on the auxiliary display area and includes a plurality of first auxillary pixels, a plurality of second auxillary pixels, and a plurality of third auxillary pixels. The main display is disposed on the main display area and includes a plurality of main pixels. The plurality of first auxillary pixels is commonly driven by a first driving signal, the plurality of second auxiliary pixels is commonly driven by a second driving signal, and the plurality of third auxillary pixels is commonly driven by a third driving signal.