A three-dimensional image display device includes: a display panel which includes a first pixel and a second pixel and displays a frame image including a positive frame image including a first right-eye image and a first left-eye image displayed in the first and second pixels, respectively, and a negative frame image including a second left-eye image and a second right-eye image displayed in the first and second pixels, respectively; and a liquid crystal lens panel disposed on the display panel and which provides the first and second right-eye images to a right eye of a viewer and provides the first and second left-eye images to a left eye of the viewer, where the display panel sequentially displays the positive frame image and the negative frame image during an n-th frame period, and the negative frame image and the positive frame image during an (n+1)-th frame image.