| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pigment dispersion and a colored resin composition capable of achieving the coexistence of high contrast, high transmittance (that is high luminance) and dispersion stability which are not conventionally attained as a problem when a copper phthalocyanine blue pigment having a transmission region in a short wavelength region such as C.I. pigment blue 15:6 is used aiming to attain the high brightness of a pixel. <P>SOLUTION: The colored resin composition includes (A) a pigment, (B) dispersant, (C) antioxidant and (D) binder resin, and (A) the pigment contains a blue pigment, (B) the dispersant is a block copolymer comprising of B block which has a quaternary ammonium base in a side chain and A block which does not have a quaternary ammonium base, and when the block copolymer pairs up with an anion, the anion is not a phosphoric ester, (C) the antioxidant contains a compound expressed by formula (I) or (II) bellow and also the content of (C) antioxidant satisfies a specific formula. <P>COPYRIGHT: (C)2011,JPO&INPIT |
