Provided are a display device capable of reducing a weight, a thickness, a cost, and a process time and having a durable structure, and a manufacturing method thereof. The display device includes: a substrate including a plurality of pixel areas; a thin film transistor formed on substrate; a first electrode connected to the thin film transistor to be formed in the pixel area; an organic layer formed on the first electrode so as to be connected along the adjacent pixel areas in a first direction among the pixel areas; a space positioned on the first electrode, of which parts of the upper surface and the side are surrounded by the organic layer; a liquid crystal formed to fill the space; and an overcoat formed to cover the rest side of the space which is not covered by the organic layer, in which a height of the upper surface of the organic layer is gradually lowered toward both edges of the pixel area from the center of the pixel area.