Electronic device comprising drive motor

An electronic device comprising:

• a first housing;
• a second housing slidably coupled to the first housing;
• a flexible display configured to be expanded or contracted based on movement of the second housing with respect to the first housing;
• a drive motor comprising a pinion gear;
• a rack gear structure comprising a rack gear engaged with the pinion gear and configured to move the second housing;
• at least one sensor module configured to detect movement of the second housing;
• a memory configured to store executable instructions;
• and
• at least one processor configured to:
• access the memory and execute the instructions,
• control the drive motor to change a state of the electronic device between a slide-in state and a slide-out state based on sensing information detected from the at least one sensor module,
• when the second housing is moved by a predetermined movement distance in a slide-in direction while in the slide-in state of the electronic device, control the drive motor to change the state of the electronic device from the slide-in state to the slide-out state, and
• when the second housing is moved by a predetermined movement distance in the slide-in direction while in the slide-out state of the electronic device, control the drive motor to change the state of the electronic device from the slide-out state to the slide-in state.