A display device includes a display panel including a substrate having a display area and a non-display area outside the display area, a display unit being in the display area, and a plurality of pads in the non-display are, a sealing unit covering the display unit, and a circuit board including a plurality of terminals electrically coupled to the plurality of pads. The circuit board has a plurality of folding portions such that the circuit board is folded at least two times in directions different from each other.