Electronic device including extendable display for expanding and reducing display area that is visible from front side of housing and control method therefor

An electronic device comprising:

• a housing including a first housing part and a second housing part configured to movably engage with the first housing part between a closed state and an opened state;
• a flexible display coupled to the first housing part and the second housing part such that a size of an area of the flexible display that is visible from a front side of the housing changes as the second housing part is moved between the closed state and the opened state;
• a battery;
• a driving circuit;
• at least one processor;
• and
• memory storing instructions that, when executed by the at least one processor, cause the electronic device to:
• identify a remaining amount of the battery and a power consumption rate of the electronic device, and
• control the driving circuit to switch the housing from the opened state to the closed state to change the size of the area of the display that is visible from the front side of the housing, based on the remaining amount of battery and the power consumption rate,
• wherein a first area of the display is exposed in the opened state, the first area including a second area and a third area, and
• wherein the second area is exposed and the third area is not exposed in the closed state.