a substrate comprising a first display area, and a second display area including pixel groups and a transmission area;

first display elements on the first display area, and first pixel circuits respectively coupled to the first display elements;

second display elements on the second display area and corresponding respectively to the pixel groups, and second pixel circuits respectively coupled to the second display elements, each of the second display elements comprise a pixel electrode, a emission layer, and a counter electrode; and

a lower metal layer in the second display area, and between the substrate and the second pixel circuits,

wherein the counter electrode has a transmission hole corresponding to the transmission area, and the lower metal layer has a lower-hole corresponding to the transmission area, and the transmission hole overlaps the lower-hole in a plan view.