Ink Composition, Organic Material Layer Comprising Same, and Organic Light-Emitting Device Comprising Same

An ink composition comprising a compound represented by Chemical Formula 1 and a solvent represented by Chemical Formula A:

• wherein, in Chemical Formulae 1 and A,
• Y is O, S, CRaRb or SiRcRd,
• Cy1 and Cy2 are the same as or different from each other, and are each independently a substituted or unsubstituted benzene ring;
• or a substituted or unsubstituted naphthalene ring,
• Ra, Rb, Rc and Rd are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group, or are bonded to an adjacent group to form a substituted or unsubstituted ring,
• L1 to L3 are the same as or different from each other, and are each independently a direct bond;
• or a substituted or unsubstituted arylene group,
• L11 and L12 are the same as or different from each other, and are each independently a direct bond;
• a substituted or unsubstituted alkylene group;
• or a substituted or unsubstituted arylene group,
• X1 and X2 are the same as or different from each other, and are each independently a curable group,
• R1 and R2 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted alkoxy group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group,
• R3 and R4 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted alkoxy group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group,
• a, b and c are each independently 0 or 1,
• n1 and n2 are each independently an integer from 0 to 7, and when n1 and n2 are each independently 2 or higher, each occurrence of R1 and R2 is the same as or different from each other, respectively,
• n3 and n4 are each independently an integer from 0 to 4, when n3 and n4 are each independently 2 or higher, each occurrence of R3 and R4 is the same as or different from each other, respectively,
• m1 and m2 are each independently an integer from 1 to 5, m1+n3 is 5 or less, and m2+n4 is 5 or less, and
• Y1 to Y10 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a hydroxyl group;
• an ether group;
• a carbonyl group;
• an ester group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted cycloalkenyl group;
• a substituted or unsubstituted alkoxy group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted amine group.