CARBON BLACK HAVING HIGH RESISTANCE, BLACK MATRIX AND COLOR FILTER INCLUDING THE SAME

摘要

A carbon black having high resistance is provided to maintain the light blocking property and to improve the insulating property by applying a resin with an insulating property and dispersibility. A carbon black having high resistance is coated with a resin on the surface and has unique volume resistance more than 1,000 ФÀcm. The resin is a polyurethane resin, acryl resin or epoxy-based resin. A manufacturing method of a carbon black having high resistance comprises a step for forming carbon black dispersion by dispersing a dispersing agent and carbon black to a solvent; a step for forming the resin emulsion by adding a surfactant and resin to an alcohol-based solvent; and a heat-treating after adding the obtained resin emulsion in the carbon black dispersion.