A display device includes an external image processing set and a display assembly configured to receive converted image data from the external image processing set and display an image corresponding to the converted image data. The display assembly includes a dynamic capacitance compensation lookup table storage unit which stores therein a dynamic capacitance compensation lookup table, and the external image processing set includes a memory which receives the dynamic capacitance compensation lookup table from the display assembly and stores therein the received dynamic capacitance compensation lookup table, and a graphic processing unit which outputs converted image data in which current frame data has undergone dynamic capacitance compensation based on the stored dynamic capacitance compensation lookup table, the current frame data and previous frame data.