1. A video signal output device, comprising: a video signal generation section that generates an output video signal for screen display; an operation input section that detects a physical touch position and a pressure with respect to a user's finger on an input surface, and in accordance with a detection result, generates information about the touch position and information about the pressure for use each as an operation signal; and a control section that controls, in accordance with the operation signals coming from the operation input section, the video signal generation section to change display contents of the output video signal, wherein while the video signal generation section is generating the output video signal for list display of a plurality of images, the control section processes the information about the touch position as the operation signal for image selection, and processes the information about the pressure as the operation signal related to any of the images being a result of selection, and the control section determines one or both of (i) whether the input surface is being depressed by a tip of the user's finger and (ii) whether the input surface is being depressed by a belly of the user's finger, and when a determination result indicates that the input surface is being depressed by the tip of the user's finger, the control section determines whether a selected image from the list display can be divided into a plurality of divided images, and when it is determined that the selected image can be divided the control section causes the selected image to be divided into the plurality of divided images, and when a determination result indicates that the input surface is being depressed by the belly of the user's finger, the control section determines whether the selected image is an original image of the list display, and when it is determined that the selected image is not the original image of the list display the control section causes the selected image to be changed to either a preceding image or the original image.