Patent ID: 7935741

Claim:
An ink composition comprising: (a) a condensed polycyclic aromatic compound selected from the group consisting of: (a-1) a compound represented by Formula (1-I), wherein the Formula (1-I) has the following structure: R 4 m —Ar- A-SiR 1 R 2 R 3 ) n (1-I) wherein, Ar denotes a group formed by removing (m+n) hydrogen atoms from the condensed polycyclic aromatic ring; A denotes a divalent connecting group; R 1 to R 3 independently denote a hydrogen atom, a hydrocarbon group, or an alkoxy group; R 4 denotes a monovalent organic group; the substitution number n for -(A-SiR 1 R 2 R 3 ) denotes an integer of 1 or greater; and the substitution number m for R 4 denotes an integer of 0 or greater, provided that (m+n) is no greater than the number of aromatic hydrogen atoms on the condensed polycyclic aromatic ring; and wherein the condensed polycyclic aromatic ring of the condensed polycyclic aromatic compound (a) is selected from the group consisting of anthracene, phenanthrene, triphenylene, and pyrene; (a-2) a compound having at least three alkoxy groups and/or aryloxy groups on a condensed polycyclic aromatic ring, and (a-3) a compound having at least one —SR 5 group bonded to a condensed polycyclic aromatic ring via a sulfur atom, in which R 5 denotes a hydrogen atom, a hydrocarbon group, or a heterocyclic group; (b) a polymerization initiator; and (c) a polymerizable compound.