Refrigerator and control method thereof

A refrigerator comprising:

• a storage compartment;
• a camera having a field of view facing the storage compartment;
• a display;
• a range sensor;
• memory, comprising one or more storage media, storing instructions;
• and
• at least one processor communicatively coupled to the camera, the display, the range sensor and the memory
• wherein the instructions, when executed by the at least one processor individually or collectively, cause the refrigerator to:
• obtain image data of the storage compartment from the camera,
• identify foods stored in the storage compartment based on the image data,
• obtain a meal plan based on information on the identified foods,
• control the display to display a pop-up window smaller than a size of the display including a notification regarding the meal plan, in response to a distance to a user being a predetermined reference distance or more based on an output of the range sensor, and
• control the display to display a window frame substantially the same as the notification regarding the meal plan, in response to the distance to the user being less than the predetermined reference distance based on the output of the range sensor,
• wherein a size of the window frame is larger than a size of the pop-up window.