Electronic device and method for providing notification of abnormal state of display

An electronic device comprising:

• a first housing;
• a second housing slidably coupled to the first housing;
• a flexible display disposed on a surface formed by the first housing and the second housing, which is insertable into the first housing or extractable from the first housing;
• a driving device for driving the second housing to slide in or slide out;
• a light emitting circuit disposed at an end of the first housing, which is a rolling area where the flexible display is bent;
• a light receiving circuit disposed at another end of the first housing, which is the rolling area where the flexible display is bent;
• memory including one or more storage mediums storing instructions;
• and
• at least one processor including processing circuitry,
• wherein the instructions, when being executed by the at least one processor individually or collectively, cause the electronic device to:
• emit, based on insertion or extraction of the flexible display, light using the light emitting circuit,
• identify, using the light receiving circuit, an abnormal state in a display area of the flexible display, and
• in response to the identification, provide a visual notification for the abnormal state in the display area of the flexible display.