A three-dimensional (3D) image display device including a display panel assembly including a display panel displaying an image and a timing controller, an integration controller transmitting an input image signal to the timing controller, a shutter member including a left eye shutter and a right eye shutter, a shutter timing determining unit receiving a shutter member control source signal from the integration controller or an outside source to generate shutter timing information, and a shutter timing controller receiving the shutter timing information to generate a shutter member control signal and transmitting the shutter member control signal to the shutter member, wherein an open time or a close time of the left eye shutter or the right eye shutter for a frame is based on the shutter timing information.