A display device is provided that includes: a display panel having data lines and gate lines on a substrate and pixels on the substrate; a data driver for driving the display panel; and a gate driver. The substrate may have a triangular shape, and the pixels of the display panel may be arranged in the shape of a triangle on the triangular substrate. The display device may be used to manufacture a multi-display device, and the multi-display device may display a continuous 3D image.