Ink, color filter, and method for manufacturing the same, and display device

A color filter comprising a red (R) pixel, a green (G) pixel and a blue (B) pixel, and deep-color separating walls for isolating the respective pixels from one another, wherein the ink used for formation of the red (R) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.R. 254 and a pigment C.I.P.R. 177, the content of the C.I.P.R. 254 is 16 to 32% by mass based on the solid content of the ink, and the content of the C.I.P.R. 177 is 4 to 8% by mass based on the solid content of the ink, and the solid content of the ink is 50% by mass or more, the ink used for formation of the green (G) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.G. 36 and a pigment C.I.P.Y. 150, the content of the C.I.P.G. 36 is 27 to 49% by mass based on the solid content of the ink, and the content of the C.I.P.Y. 150 is 12 to 21% by mass based on the solid content of the ink, and the ink used for formation of the blue (B) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.B. 15:6 and a pigment C.I.P.V. 23, the content of the C.I.P.B. 15:6 is 19 to 51% by mass based on the solid content of the ink, and the content of the C.I.P.V. 23 is 1.2 to 2.3% by mass based on the solid content of the ink.

A method for manufacturing a color filter, the method comprising forming deep-color separating walls on a substrate and discharging red (R), green (G) and blue (B) inks by an ink jet method onto concave portions enclosed by the deep-color separating walls to respectively form a red (R) pixel, a green (G) pixel and a blue (B) pixel on the concave portions, wherein the ink used for formation of the red (R) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.R. 254 and a pigment C.I.P.R. 177, the content of the C.I.P.R. 254 is 16 to 32% by mass based on the solid content of the ink, and the content of the C.I.P.R. 177 is 4 to 8% by mass based on the solid content of the ink, and the solid content of the ink is 50% by mass or more, the ink used for formation of the green (G) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.G. 36 and a pigment C.I.P.Y. 150, the content of the C.I.P.G. 36 is 27 to 49% by mass based on the solid content of the ink, and the content of the C.I.P.Y. 150 is 12 to 21% by mass based on the solid content of the ink, and the ink used for formation of the blue (B) pixel comprises at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.B. 15:6 and a pigment C.I.P.V. 23, the content of the C.I.P.B. 15:6 is 19 to 51% by mass based on the solid content of the ink, and the content of the C.I.P.V. 23 is 1.2 to 2.3% by mass based on the solid content of the ink.

An ink set comprising:

• a first ink comprising at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.R. 254 and a pigment C.I.P.R. 177, the content of the C.I.P.R. 254 is 16 to 32% by mass based on the solid content of the first ink, and the content of the C.I.P.R. 177 is 4 to 8% by mass based on the solid content of the first ink, and the solid content of the first ink is 50% by mass or more,
• a second ink comprising at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.G. 36 and a pigment C.I.P.Y. 150, the content of the C.I.P.G. 36 is 27 to 49% by mass based on the solid content of the second ink, and the content of the C.I.P.Y. 150 is 12 to 21% by mass based on the solid content of the second ink;
• and
• a third ink comprising at least (1) a monomer and/or an oligomer and (2) a coloring agent, wherein the coloring agent comprises a pigment C.I.P.B. 15:6 and a pigment C.I.P.V. 23, the content of the C.I.P.B. 15:6 is 19 to 51% by mass based on the solid content of the third ink, and the content of the C.I.P.V. 23 is 1.2 to 2.3% by mass based on the solid content of the third ink.