Electronic device for supporting sliding

An electronic device for supporting sliding, the electronic device comprising:

• a first cover;
• a second cover coupled to the first cover to slide;
• a display in which a size of an exposed region is changed corresponding to the sliding of the second cover;
• a display support member supporting a first region of the display;
• a sliding structure at least partially disposed under the display support member;
• a first driving unit at least partially coupled to a guide rail formed on a bottom of the display support member and moving the sliding structure in a first direction or a second direction opposite to the first direction;
• a panel support including a plurality of protrusions disposed on a back surface of a second region of the display with respect to a front surface of the display on which a screen is displayed;
• a second driving unit contacting at least a portion of the panel support and performing a rotation required for winding of the panel support;
• and
• at least one processor configured to control operations of the first driving unit and the second driving unit,
• wherein the second driving unit including hook grooves temporarily coupled with the plurality of protrusions when contacting one side of the panel support, and
• wherein the plurality of protrusions include a hook portion protruding in a direction opposite to a protruding direction of the hook grooves formed on the second driving unit.