A terminal device includes a detection section for detecting an operation to a display section, a processing section for executing processing in accordance with the detected operation, a display control section for displaying a picto on a first display area in a lock screen and displaying an unlock icon on a second display area, a first judgment section for judging as an unlock operation an operation of performing an operation to the unlock icon and then performing an operation to move the icon from the second display area to a third display area, a screen shift section for shifting the lock screen to a predetermined screen in response to the unlock operation, and a second judgment section for judging that a display picto function execution operation has been performed when a predetermined operation to the display section other than the unlock operation is detected.