Abstract: Disclosed herein is a receptacle display device. According to this invention, a first rotary panel is mounted to a display panel support unit in such a way as to rotate about a rotating shaft, and a display panel is secured to the first rotary panel. Thus, when the first rotary panel rotates about the rotating shaft at about 90 degrees, the length of the display panel is changed to the width, and the width of the display panel is changed to the length, thus being capable of storing a large display panel, which is larger than the width of a receptacle housing, in the receptacle housing.