Patent ID: 7948585
Filing Date: 2011-05-24
Classification: C09D,G02B

Abstract:
1. An inkjet ink for a color filter, comprising: an organic medium; fine pigment particles formed with a size on the order of a nanometer, said particles being dispersed in said organic medium; and a polymerizable monomer and/or a polymerizable oligomer in the organic medium, wherein said fine pigment particles are obtained by: providing a pigment solution of a pigment dissolved in a solvent that is a good solvent for said pigment; providing a solvent which is compatible with said good solvent but which is a poor solvent for said pigment; including a dispersing agent in the pigment solution and/or in said poor solvent prior to mixing them; and mixing the pigment solution with said poor solvent to form fine pigment particles having a size on the order of a nanometer.