A nanocrystal display includes a display panel including a plurality of pixels; and a substrate including a plurality of pixel areas corresponding to the plurality of pixels, and a boundary area between the pixel areas. Each pixel includes a first electrode on an upper surface of the substrate and in a corresponding pixel area; a second electrode on the upper surface of the substrate and spaced apart from the first electrode in a cross-section direction, a tunnel-shaped cavity defined in the plurality of pixel areas and spaced apart from the substrate by a predetermined distance; and an image display layer in the tunnel-shaped cavity; and a backlight unit which provides a light to the display panel and faces the upper surface of the substrate.