Electronic device having display magnification function, and electronic device operation method

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 retracted position and an extended position;
• 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 retracted position and the extended position;
• an actuator configured to move the second housing part with respect to the first housing part;
• a memory;
• and
• at least one processor operatively connected to the flexible display, the actuator and the memory,
• wherein the memory includes instructions that, when executed by the at least one processor, cause the processor to:
• display first content corresponding to a user input received through an execution screen of an application being executed, at a first magnification value on a first area of the flexible display that is visible from the front side of the housing as the second housing part is moved to the retracted position;
• control the actuator to move the second housing part to the extended position based on a first specified input;
• determine, based at least in part on the first content included in the execution screen, a display magnification of a second area of the flexible display that is visible from the front side of the housing as the second housing part is moved to the extended position, to be a second magnification value different from the first magnification value;
• and
• display the first content on the second area of the flexible display based on the determined second magnification value,
• wherein instructions, when executed by the at least one processor, cause the electronic device to:
• determine whether the first content includes at least one of text, a table, or a musical score;
• based on a determination that the first content includes at least one of the text, the table, or the musical score:
• maintain the display magnification of the second area of the flexible display at the first magnification value;
• and
• display the first content on the second area of the flexible display based on the first magnification value, and
• based on a determination that the first content does not include the text, the table, or the musical score:
• determine the display magnification of the second area of the flexible display to be the second magnification value;
• and
• display the first content on the second area of the flexible display based on the determined second magnification value.