Coloring composition for color filter containing colorant and color filter using the same
AssigneeToda Kogyo Corporation
InventorsHiroko Morii, Keisuke Iwasaki, Kazuyuki Hayashi
Life of this patent
Estimating the term…
Abstract
A coloring composition for a color filter composed of composite particles having an average particle diameter of 0.00 1 to 1.0 μm, and containing white inorganic particles, a glue coating layer formed on the surface of the white inorganic particle and an organic pigment coat formed on the glue. A dispersant, binder resin, monomer as a reactive diluent, a polymerization initiator and a solvent are also present. The colorant provides not only a sharp particle size distribution but also excellent light resistance.
Claims13
A coloring composition for a color filter, comprising:
- a colorant for a color filter composed of composite particles having an average particle diameter of 0.001 to 1.0 μm and a geometrical standard deviation value of particle diameters of not more than 2.0, and comprising white inorganic particles, a gluing agent coating layer formed on surface of the white inorganic particle and an organic pigment coat formed on the gluing agent coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the white inorganic particles;
- a dispersant;
- a binder resin;
- a monomer as a reactive diluent;
- a polymerization initiator;
- and a solvent.
A coloring composition for a color filter, comprising:
- a colorant for a color filter composed of composite particles having an average particle diameter of 0.0015 to 0.5 μm, a geometrical standard deviation value of particle diameters of not more than 1.8 and a BET specific surface area value of 1.5 to 750 m2/g, and comprising white inorganic particles, a gluing agent coating layer formed on surface of the white inorganic particle, and an organic pigment coat formed on the gluing agent coating layer in an amount of 10 to 400 parts by weight based on 100 parts by weight of the white inorganic particles;
- a dispersant;
- a binder resin;
- a monomer as a reactive diluent;
- a polymerization initiator;
- and a solvent.
A method of using as a colorant for a color filter, composite particles having an average particle diameter of 0.001 to 1.0 μm, and geometrical standard deviation value of particle diameters of not more than 2.0, and comprising white inorganic particles, a gluing agent coating layer formed on surface of the white inorganic particle and an organic pigment coat formed on the gluing agent coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the white inorganic particles.
A colorant for a color filter comprising:
- composite particles having an average particle diameter of 0.001 to 1.0 μm, and a geometrical standard deviation value of particle diameters of not more than 2.0, and comprising white inorganic particles, a gluing agent coating layer formed on surface of the white inorganic particle and an organic pigment coat formed on the gluing agent coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the white inorganic particles.
Dependencies are inferred from the claim text.