To provide brand-name goods, a keytop, etc., which are inexpensive in total costs by reducing a cost to form display, improving display quality, shortening a molding cycle while preventing a sink mark, and suppressing the increase of equipment costs while considering environment in a production process.

Before injection molding, lamination members 30 are stuck to a movable core 14 of a mold forming the molding or on the surface of a gate shielding piece 15. During injection molding, the core 14 and the piece 15 are floated up, and first half injection is applied. With a time difference set, the core 14 and the piece 15 are lowered down, and second half injection is applied. A main display film 31 is sealed in the boundary layer between a first half molding part 11 and a second half molding part 12 formed by the second half injection, and a background display film 32 is joined to the back face of the second half molding part 12. The first half molding part 11, the main display film 31, the second half molding part 12, and the background display film 32 are integrated by a single injection molding.