Patent ID: 7368148

Claim:
A process for the fabrication of a color filter, the process comprising printing, with water-based pigment inks, a pixel pattern for said color filter on a flexible plastic film through a perforated mask which is in a positive-negative relationship with said pixel pattern by a central impression cylinder press which comprises a central impression cylinder and 3 to 10 printer units arranged in a form of satellites around said central impression cylinder, and subsequently stripping off said mask, wherein said pixel pattern is formed of pixels of three primary colors consisting of red, green and blue or pixels of three primary colors consisting of yellow, magenta and cyan, wherein the printing is a flexographic printing, and wherein said perforated mask is (1) a mask obtained by forming a mask film over said plastic film and then forming through said mask film perforations in said negative-positive relationship with said pixel pattern by laser abrasion, (2) a mask obtained by printing, on said plastic film, a film at areas other than those corresponding to said pixel pattern to be formed, or (3) a mask which is provided with an adhesive layer and is held in place on said plastic film via said adhesive layer.