1. A dual-view image display device comprising: a signal input module receiving a video signal having a frame image that is split into two first images; a video processing module electrically connected to the signal input module, with the video processing module comprising a nonlinear processing module, with the video processing module processing the video signal received from the signal input module to obtain the two first images and then using the nonlinear processing module to horizontally or vertically split each of the two first io images into a plurality of areas, to nonlinearly enlarge each of the areas, and to interpolate pixels to each of the enlarged areas to obtain two fullscreen second images; a dual-view processing module electrically connected to the video processing module, with the dual-view processing module processing the two second images outputted from the video processing module; and a display module electrically connected to the dual-view processing module, with the display module displaying the two processed second images outputted from the dual-view processing module.