Method for controlling display and electronic device therefor

An electronic device comprising:

• a first housing;
• a second housing movable and at least partially superimposed with respect to the first housing;
• a display of which at least a first area is exposed to outside of the electronic device through a front face of the electronic device, wherein the display has a second area extended from the first area of the display such that, when the electronic device switches from a first state to a second state, the second area is drawn out from inside the first housing and is exposed to the outside of the electronic device together with the first area, and when the electronic device switches from the second state to the first state, the second area is inserted into the first housing;
• one or more processors operatively coupled to the display;
• and
• memory storing one or more computer programs including computer-executable instructions that, when executed by the one or more processors, cause the electronic device to:
• control the display such that the first area of the display operates at a first scan rate in the first state,
• control the display such that, while the electronic device switches from the first state to the second state, the display operates at a second scan rate higher than the first scan rate at least with respect to the first area, and
• control the display such that, in response to completion of the switching to the second state, the display operates at the first scan rate with respect to the first area and the second area.