Light-shielding composition, cured film, color filter, light-shielding film, solid-state imaging element, and image display device
A light-shielding composition includes a light-shielding pigment, a resin, a polymerizable compound, which is a low-molecular-weight compound containing an ethylenically unsaturated group, and a polymerization initiator, in which the light-shielding pigment contains an inorganic particle, and an inorganic compound coating the inorganic particle, the inorganic particle contains one or more nitrogen-containing metal compounds selected from the group consisting of zirconium nitride, zirconium oxynitride, vanadium nitride, vanadium oxynitride, niobium nitride, and niobium oxynitride, the inorganic compound contains a silicon atom, and a contained atom number ratio of a total content of metallic atoms, which are selected from the group consisting of a zirconium atom, a vanadium atom, and a niobium atom, to a content of the silicon atom in a surface of the light-shielding pigment, as determined by X-ray photoelectron spectroscopy, is greater than 1.0.
1. A light-shielding composition comprising:
a light-shielding pigment;
a resin;
a polymerizable compound which is a low-molecular-weight compound containing an ethylenically unsaturated group; and
a polymerization initiator,
wherein the light-shielding pigment contains an inorganic particle, and an inorganic compound coating the inorganic particle,
the inorganic particle contains one or more nitrogen-containing metal compounds selected from the group consisting of zirconium nitride, zirconium oxynitride, vanadium nitride, vanadium oxynitride, niobium nitride, and niobium oxynitride,
the inorganic compound contains a silicon atom, and
a contained atom number ratio of a total content of metallic atoms, which are selected from the group consisting of a zirconium atom, a vanadium atom, and a niobium atom, to a content of the silicon atom in a surface of the light-shielding pigment, as determined by X-ray photoelectron spectroscopy, is greater than 1.0.
2. The light-shielding composition according to claim 1 ,
wherein the nitrogen-containing metal compound is one or more selected from the group consisting of zirconium nitride and zirconium oxynitride.
3. The light-shielding composition according to claim 1 ,
wherein the inorganic compound contains SiO 2 .
4. The light-shielding composition according to claim 1 ,
wherein the nitrogen-containing metal compound is one or more selected from the group consisting of zirconium nitride and zirconium oxynitride, and
the inorganic compound contains zirconium silicide.
5. The light-shielding composition according to claim 1 ,
wherein the contained atom number ratio is equal to or greater than 1.5 and less than 3.0.
6. The light-shielding composition according to claim 1 ,
wherein the resin is a graft polymer.
7. The light-shielding composition according to claim 1 ,
wherein the resin contains an ethylenically unsaturated group.
8. The light-shielding composition according to claim 1 ,
wherein the polymerization initiator is an oxime compound.
9. A cured film formed of the light-shielding composition according to claim 1 .
10. A color filter comprising:
the cured film according to claim 9 .
11. A light-shielding film comprising:
the cured film according to claim 9 .
12. A solid-state imaging element comprising:
the cured film according to claim 9 .
13. An image display device comprising:
the cured film according to claim 9 .