Disclosed, according to various embodiments of the present invention, is an electronic device comprising: a housing comprising a cover glass and a rear cover facing the cover glass; a display comprising a first region and a second region connected to one end of the first region, and having a first state where the first region is exposed, via the cover glass, to the outside of the electronic device, and a second state where the first region and the second region are exposed, via the cover glass, to the outside of the electronic device; and a processor electrically connected to the display. The processor may be configured so as to control the outputting of content on the basis of the state of the display. In addition, various embodiments are possible as identified in the specification.