Electronic device and method for preventing misrecognition by proximity sensor according to burn-in

An electronic device comprising:

• a display;
• a proximity sensor disposed under the display;
• at least one processor operatively connected with the display and the proximity sensor;
• and
• a memory operatively connected with the at least one processor,
• wherein the memory stores instructions that, when executed by the at least one processor, cause the at least one processor to:
• in response to the display being turned on, detect a light entering the proximity sensor by using the proximity sensor,
• identify whether a light of a wavelength other than a set wavelength is included in the light entering the proximity sensor,
• calibrate a reference range, based on whether the light of the wavelength other than the set wavelength is included, and
• identify whether an external object is close to the electronic device, based on the calibrated reference range.