Various embodiments of the present invention relate to an electronic device for dynamically adjusting the refresh rate of a display, the electronic device comprising a memory, a display driver integrated circuit (DDI), the display, and a processor, wherein the processor may: generate an image frame corresponding to an execution screen of an application; transmit the image frame to the DDI in response to a timing signal output from the DDI; and control the DDI to drive the display on the basis of the image frame. The DDI outputs a first timing signal at a designated first frame period, outputs a second timing signal at a designated second frame period longer than the first frame period when the reception of the image frame from the processor is delayed, and outputs a third timing signal at a designated third frame period longer than the first frame period and shorter than the second frame period when the image frame is not received from the processor for a designated reference time after the second timing signal is output. The present invention may further include various other embodiments.