A display input device including: a display panel provided for the display panel; and a control unit that recognizes user operation content, recognizes a drag operation whereby a predetermined start area in the display panel is touched and, while said touch is continued, the touch position is slid towards a predetermined end area, recognizes arrival at the touch position end area as a power supply OFF command that instructs a power supply to turn OFF, and causes processing for turning off the power supply when a power supply OFF command is recognized.