Following the pixel to the design rule of one, or more although ranking you attach, the halftone screen which uses spot function

摘要

(57) Abstract The big halftone electrolysis cell (12) which corresponds to the continual pixel (22) field is stipulated, rendering manner of the halftone which covers the output pixel field the aforementioned big halftone electrolysis cell by splitting into the small halftone electrolysis cell (24), is disclosed. The number of Gray''s levels is decided by the number of pixels inside the big halftone electrolysis cell, but resolution is decided by the size of the small halftone electrolysis cell inside the big halftone electrolysis cell. The number of pixels which it colors inside the big halftone electrolysis cell with the Gray level which is decided beforehand is decided, the pixel colors following to spot function inside the small halftone electrolysis cell. The big halftone electrolysis cell the case where it splits into the small halftone electrolysis cell, in order the big halftone electrolysis cell, accurately 1 characteristics to do the small halftone electrolysis cell which is center, it splits.