Disclosed is a refrigerator including a storage compartment, a door configured provided on the storage compartment and configured to open and close, and a display provided on the door and including an electrocaloric material and a light-scattering material, wherein the display is configured to release heat from the storage compartment to the outside of the storage compartment upon determination that a voltage applied to the electrocaloric material and the light-scattering material is a first voltage less than a specified voltage and configured to reduce scattering of light incident on the display upon determination that a voltage applied to the electrocaloric material and the light-scattering material is a second voltage greater than the specified voltage.