A curved display device includes a display substrate curved in a first direction, an opposite substrate coupled to the display substrate, where the opposite substrate is curved together with the display substrate, and a liquid crystal layer including liquid crystal molecules disposed between the display substrate and the opposite substrate. The opposite substrate includes a common electrode and a first alignment layer disposed on the common electrode, where the first alignment layer aligns a first portion of the liquid crystal molecules at a first pretilt angle. The display substrate includes: a pixel electrode, where a plurality of slits is defined in the pixel electrode; and a second alignment layer disposed on the pixel electrode, where the second alignment layer aligns a second portion of the liquid crystal molecules at a second pretilt-angle, which is less than the first pretilt-angle.