1. A multi display device comprising: a first body having a first display unit; a second body having a second display unit; a hinge unit disposed to couple to the first and second bodies; a first imaging unit disposed in the first body and configured to perform photographing; a second imaging unit disposed in the second body and configured to perform photographing; and a controller configured to, in response to one of the first and second imaging units performing photographing of a plurality of images while one of the first and second bodies having the one of the first and second imaging units pivots based on the hinge unit, combine the plurality of photographed images to generate a panorama image content.