A refrigerator door including an exterior member, a front panel and a display assembly on which a plurality of LEDs are mounted, wherein the exterior member comprises: a stainless steel plate configured to form an exterior of the refrigerator door and to cover the display assembly ; and a displaying part formed by a collection of first through-holes passing through the stainless steel plate at positions corresponding to the plurality of LEDs and configured to display operating information of the refrigerator by a combination of the first through-holes through which light of the LEDs passes, wherein a diffusion sheet which shields the entire displaying part and diffuses the transmitted light is provided at the rear surface of the front panel , wherein a hole-filling member for transmitting light is formed at the rear surface of the front panel and completely fills the first through-holes , the hole-filling member forms a printed layer having a thickness of about 35 to 55 μm at the rear surface of the front panel corresponding to the displaying part to cover the entire displaying part , wherein each of the first through-holes is formed by a front surface groove which is recessed from a front surface of the stainless steel plate by an etching and determines a hole size of each of the first through-holes and a rear surface groove which is recessed at a position of a rear surface of the stainless steel plate facing the front surface groove by the etching and is in communication with the front surface groove , wherein the front surface groove and the rear surface groove is matched one-to-one with each other and is in communication with each other, and thus the first through-holes are formed. a stainless steel plate configured to form an exterior of the refrigerator door and to cover the display assembly ; and a displaying part formed by a collection of first through-holes passing through the stainless steel plate at positions corresponding to the plurality of LEDs and configured to display operating information of the refrigerator by a combination of the first through-holes through which light of the LEDs passes, wherein a diffusion sheet which shields the entire displaying part and diffuses the transmitted light is provided at the rear surface of the front panel , wherein a hole-filling member for transmitting light is formed at the rear surface of the front panel and completely fills the first through-holes , the hole-filling member forms a printed layer having a thickness of about 35 to 55 μm at the rear surface of the front panel corresponding to the displaying part to cover the entire displaying part , wherein each of the first through-holes is formed by a front surface groove which is recessed from a front surface of the stainless steel plate by an etching and determines a hole size of each of the first through-holes and a rear surface groove which is recessed at a position of a rear surface of the stainless steel plate facing the front surface groove by the etching and is in communication with the front surface groove , wherein the front surface groove and the rear surface groove is matched one-to-one with each other and is in communication with each other, and thus the first through-holes are formed. <EOS>