Provided is a method of producing a round shape display including a polarizing plate. The round shape display is shaped circularly and has a front face provided with the polarizing plate. In a stated order, the method includes steps of: (a) producing a positioning panel from a material panel including the round shape display, the positioning panel being surrounded by a straight edge shaped linearly and a portion of an outer circumference of the round shape display; (b) positioning the positioning panel; (c) attaching the polarizing plate shaped circularly to the round shape display included in the positioning panel; and (d) removing a portion, of the positioning panel, including the straight edge, and producing the round shape display.