An electronic device may comprise: a housing of the electronic device; a display disposed in the housing; a posture sensor configured to generate data used to recognize the posture of the electronic device; at least one processor, comprising
processing circuitry, operatively connected to the posture sensor and the display; and a memory for storing an application, operatively connected to the processor. At least one processor, individually and / or collectively, may be configured to carry out the operations of: displaying a first
background image in a first
background image display area configured to display a
background image in a display area activated to display visual information on the display; monitoring, on the basis of data received from the posture sensor, whether the posture of the electronic device has changed from a first posture corresponding to a portrait mode to a second posture corresponding to a landscape mode, or from the second posture to the first posture; monitoring whether there is a visual change in the execution screen of an application in the activated display area; based on recognizing, as a result of the monitoring, a change in the posture of the electronic device or a visual change in the execution screen of an application, configuring a second background
image display area, which has a
reduced size compared to the first background
image display area, in the activated display area; reconstructing a second background image from the first background image, so that the second background image can be displayed in the second background
image display area; and displaying the second background image in the second background image display area.