Electronic device comprising flexible display

An electronic device comprising:

• a housing defining at least a portion of an exterior of the electronic device;
• a rear surface cover defining a rear surface of the electronic device;
• a display module seated in the housing, the display module comprising:
• a bracket comprising a rotary drive portion and a rear surface,
• a slide guide disposed on the bracket to be movable with respect to the rotary drive portion,
• a flexible display disposed to surround the top surface of the slide guide, the rotary drive portion, and a portion of the rear surface of the bracket, the flexible display comprising an inner surface, and
• multiple bars attached to the inner surface of the flexible display to support the flexible display, the multiple bars configured to guide movement of the flexible display;
• a printed circuit board disposed between the rear surface cover and an area of the flexible display that surrounds the rear surface of the bracket within the housing;
• and
• at least one gear disposed on a side surface of the bracket,
• wherein teeth of the at least one gear are engaged with a bump disposed on each of the multiple bars to drive the display module.