Display module, electronic device, and control method of electronic device

An electronic apparatus, comprising:

• a display;
• memory configured to store at least one instruction;
• and
• a processor configured to execute the at least one instruction,
• wherein the display comprises:
• a light emitting device configured to emit light corresponding to image data through a plurality of pixels;
• and
• a plurality of lens sheets comprising a plurality of gradient-index (GRIN) lenses, respectively, the plurality of GRIN lenses being configured to operate as a convex lens or a concave lens based on different refractive indices based on a position in each lens of the plurality of GRIN lenses,
• wherein the plurality of GRIN lenses comprises a plurality of first lenses operating as a convex lens and a plurality of second lenses operating as a concave lens, respectively,
• wherein the plurality of first lenses and the plurality of second lenses are alternately disposed within the plurality of lens sheets, and
• wherein the plurality of first lenses included in a first lens sheet among the plurality of lens sheets is at an upper portion of the plurality of first lenses included in a second lens sheet among the plurality of lens sheets while light configured to provide a 3-dimensional image is being emitted from the light emitting device.