A supporting mechanism movably supports a display body, a display surface of which is in the vertical position and in an inclined position. A pressing mechanism has an elastic member which stores repulsive force by being pressed by the display body as the display body moves from the vertical position to the inclined position, and presses the display body by the repulsive force in the direction from the inclined position to the vertical position. A position holding mechanism holds the display body at an optional position anywhere between the vertical position and the inclined position.