An information processing device comprising: a display unit that displays a display screen; an operation unit that accepts a specified operation made on the display screen of the display unit; and a control unit that causes the display unit to display an unlocking screen including a first indicator and a second indicator (Q3-Q9), and controls the operation unit into a state of accepting a specified operation on the second indicator (Q3-Q9), in response to a request for releasing a locking function of prohibiting a predetermined specified operation from being made on the operation unit, in a state where the locking function is active, the second indicator (Q3-Q9) corresponding to a predetermined information processing function, the control unit determining that an unlocking operation for releasing the locking function has been input, in a case of accepting a specified operation indicating release of the locking function on the first indicator via the operation unit, characterized in that the unlocking screen further includes a third indicator positioned opposite to the second indicator (Q3-Q9) with respect to the first indicator, the control unit determines that an activation operation of the information processing function corresponding to the second indicator (Q3-Q9) has been input, in a case of accepting an instruction operation indicating an execution of the information processing on the second indicator (Q3-Q9) via the operation unit, the instruction operation being an operation in which the second indicator (Q3-Q9) is moved to the third indicator from a region where the second indicator (Q3-Q9) is displayed serving as a starting point, and the unlocking screen further includes an application information display region that displays related information to show a content of an application corresponding to the second indicator (Q3-Q9). a display unit that displays a display screen; an operation unit that accepts a specified operation made on the display screen of the display unit; and a control unit that causes the display unit to display an unlocking screen including a first indicator and a second indicator (Q3-Q9), and controls the operation unit into a state of accepting a specified operation on the second indicator (Q3-Q9), in response to a request for releasing a locking function of prohibiting a predetermined specified operation from being made on the operation unit, in a state where the locking function is active, the second indicator (Q3-Q9) corresponding to a predetermined information processing function, the control unit determining that an unlocking operation for releasing the locking function has been input, in a case of accepting a specified operation indicating release of the locking function on the first indicator via the operation unit, characterized in that the unlocking screen further includes a third indicator positioned opposite to the second indicator (Q3-Q9) with respect to the first indicator, the control unit determines that an activation operation of the information processing function corresponding to the second indicator (Q3-Q9) has been input, in a case of accepting an instruction operation indicating an execution of the information processing on the second indicator (Q3-Q9) via the operation unit, the instruction operation being an operation in which the second indicator (Q3-Q9) is moved to the third indicator from a region where the second indicator (Q3-Q9) is displayed serving as a starting point, and the unlocking screen further includes an application information display region that displays related information to show a content of an application corresponding to the second indicator (Q3-Q9).