A display device and a method of controlling therefor are disclosed. A display device includes a main display unit configured to receive an input of at least one fingerprint and display information, a sub display unit configured to be exposed from a stored position and a controller configured to set a mode based on the inputted at least one fingerprint. If an inputted first fingerprint is matched with a fingerprint of a group of registered fingerprints, the controller is configured to set a first mode. If an inputted first fingerprint and a second fingerprint are matched with fingerprints of the group of the registered fingerprints, the controller is configured to set a second mode.