Mobile device and control method therefor

A mobile device according to one embodiment of the present invention comprises: a camera; a touch sensor; a display module; a near field communication module; a memory in which at least one piece of card information capable of paying for an item is stored; and a controller for controlling the touch sensor, the display module and the memory. Particularly, the controller controls the display module in response to a command for executing a payment function, such that a preset specific region, in which the card information stored in the memory can be read, is displayed distinctly from other regions.