A curved display device including a display area and a non-display area is provided. The curved display device includes a first direction area configured to maintain a flat state and a bending area connected to the first direction area. A thin film transistor (TFT) layer, a passivation layer, a sealing layer, and an upper film are provided on a base substrate in an area where the display area overlaps the bending area, and the sealing layer and the upper film extend to an area where the non-display area overlaps the bending area.