To provide a visible data generating method whereby an image to be plotted can be confirmed without actually discharging functional liquid drops, a visible data generator, a functional liquid drop discharge device with the generator, a manufacturing method for a liquid crystal display device, a manufacturing method for an organic EL device, a manufacturing method for an electron emission device, a manufacturing method for a PDP device, a manufacturing method for an electrophoresis display device, a manufacturing method for a color filter, a manufacturing method for an organic EL, a spacer forming method, a metal wiring forming method, a lens forming method, a resist forming method and a light diffuser forming method.

Based on a plotting pattern data 80 binarized for plotting by selectively discharging functional liquid drops to a work from a functional liquid drop discharge head 7, a pattern data 60 is generated by bit computing. A visible data 90 visualized by a visualization program is generated on the basis of the pattern data 60.