A display control apparatus and a display control method are provided in which a resolution of an input image signal is judged, a change in the image signal is detected, and the image signal is adaptatively interpolated in accordance with the judgement and detection results. A resolution of an input image signal is judged, either a first display mode or a second display mode is selected for the display of the image signal, and the image signal is adaptatively interpolated in accordance with the judgement and selection results. Alternatively, either a computer input signal or a television input signal is input, a resolution of the input signal is judged, and the input signal is adaptatively interpolated in accordance with the selected input and judgement results.