A method for forming color filters for flat panel displays comprising dispensing color inks into a pre-patterned matrix using an inkjet device and curing the dispensed color inks. According to the method, a luminous beam is injected through two apertures and after detection respectively a basic optical signal and a corrective optical signal are generated. Each lock group is associated with a respective one of the plurality of locks. The first frame member is set on the floor, and the workpiece transfer apparatus is installed thereon. Accordingly, it is determined whether to insert content data into a predetermined page or into a page different from the predetermined page depending on the content data. The addition of the impinger provides a mechanism to ensure that flow velocities are always constant or increasing until the discharge plane of the nozzle body, thereby offering a means to optimize the design of the nozzle for the given flow andor operational pressure drop requirements, while sustaining a tuned venturi effect for steadfast operation in a dynamic environment.