A motion image data sequence, a method for generating the sequence, and a display device using the sequence are provided. The display device includes an image data input device and an image data processor. The image data input device transmits an initial image data to the image data processor. The image data processor inserts a mask frame between a first timing image frame and a third timing image frame to generate an output image data sequence. The mask frame includes a plurality of mask units and a plurality of image units. The mask units and the image units are disposed in an array form.