Micro-colored pattern defect correction for black ink, and, color filter

摘要

PROBLEM TO BE SOLVED: To provide black ink for correcting a minute colored pattern defect which has high optical density and shading property and a high volume resistance value, which causes neither a presentation fault in a corrected part, nor projections that become problems afresh when the ink is applied to a color omission portion of a white defect, of which the area overlapping a normal color pixel portion is prevented from being enlarged due to expansion of a spot after application, of which the physical stability such as the ink viscosity in the use and the storage is excellent and the volume reduction rate after application is low and which enables sufficient enlargement of the film thickness of the coated portion of the color omission part and can be used also for correction of a portion for which the high volume resistance value is demanded, and to provide a color filter which is manufactured by using this ink.;SOLUTION: The black ink for correcting the minute coloring pattern defect contains at least a high-resistance inorganic black pigment, a monomer having a reactive functional group. a polymer and a solvent. The compounding amount of the solvent is 20-70 wt.% to the whole of the ink and the viscosity of the ink is 40-300 mPa×s. The color filter is corrected by using this ink.;COPYRIGHT: (C)2005,JPO&NCIPI