Condensed-cyclic compound and organic light-emitting device comprising the same

A condensed-cyclic compound represented by one of Formula 1, 1B, and 1C:

• wherein, in Formula 1, X is selected from O, S, and N(R11);
• when X is O, A is selected from a naphthalene, an anthracene, a phenanthrene, a chrysene, and a pyrene, and ii) when X is S or N(R11), A is selected from a benzene, a naphthalene, an anthracene, a phenanthrene, a chrysene, and a pyrene;
• in Formulae 1B and 1C,
• X is selected from O, S, N(R11), Si(R12)(R13) and C(R15)(R16);
• in Formula 1, 1B, and 1C
• L1 to L3 are each independently selected from:
• a phenylene group, and
• a phenylene group substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group
• a1 to a3 are each independently selected from 0 and 1;
• Ar1 to Ar6 are each independently selected from a group represented by one of Formulae 6-1 to 6-28:
• wherein, in Formulae 6-1 to 6-28, * indicates a binding site to an adjacent atom;
• c1 to c3 are each independently selected from 0 and 1, provided that a sum of c1, c2, and c3 is 1 or more;
• R1 to R3 are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid or a salt thereof, a methyl group and a phenyl group
• b1 to b3 are each independently an integer selected from 0 to 3;
• R11, R12, R13, R15, and R16 are each independently selected from a methyl group and a phenyl group;
• and
• B is a boron atom.