Photosensitive composition for forming light blocking layer of organic light emitting device

A photosensitive composition for forming a light shielding layer of an organic light emitting display device, comprising:

• (1) an alkali soluble resin comprising a repeating unit represented by Formula (1);
• (2) a reactive unsaturated compound;
• (3) a photoinitiator;
• (4) a black colorant;
• (5) a hollow silica particle;
• and
• (6) a solvent:
• Formula (1)
• wherein in Formula (1) above,
• 1) * represents a part where a bond is connected by a repeating unit,
• 2) N is an integer of 2 to 200,000,
• 3) R1 and R2 are each independently hydrogen;
• deuterium;
• a halogen;
• a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 4) R1 and R2 each may form a ring with a neighboring group,
• 5) A and b are each independently an integer of 0 to 4,
• 6) X1 is a single bond, O, CO, SO2, CR′R″, SIR′R″, Formula (a), or Formula (b),
• wherein 6-1) R′ and R″ are each independently hydrogen;
• deuterium;
• a halogen;
• a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 6-2) R′ and R″ each may form a ring with a neighboring group,
• 6-3) where
• Formula
• 6-3-1) * represents a binding site,
• 6-3-2) X3 is O, S, SO2, or NR′,
• 6-3-3) R′ and R3 to R6 are each independently hydrogen;
• deuterium;
• a halogen;
• a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 6-3-4) R3 to R6 each may form a ring with a neighboring group,
• 6-3-5) c to f are each independently an integer of 0 to 4,
• 7) X2 is a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 8) A1 and A2 are each independently Formula (c) or Formula (d), in such cases,
• the repeating unit of Formula (1) wherein A1 and A2 are Formula (d) is a repeating unit 1-1;
• the repeating unit of Formula (1) wherein A1 and A2 are Formula (c) is a repeating unit 1-2;
• and
• the repeating unit of Formula (1) wherein A1 and A2 are each differently Formula (c) or Formula (d) is a repeating unit 1-3:
• wherein in Formula (c) and Formula (d) above,
• 8-1) * represents a binding site,
• 8-2) R7 to R10* are each independently hydrogen;
• deuterium;
• a halogen;
• a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 8-3) the ratio of Formula (c) and Formula (d) in the polymer chain of the resin comprising the repeating units 1-1 to 1-3 represented by Formula (1) above is 1:9 to 9:1,
• 8-4) Y1 and Y2 are each independently Formula (e) or Formula (f),
• wherein in Formula (e) or Formula (f),
• 8-4-1) * represents a binding site,
• 8-4-2) R11 is hydrogen or methyl,
• 8-4-3) R12 to R15 are each independently hydrogen;
• deuterium;
• a halogen;
• a C6-30 aryl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
• a C1-20 alkyl group;
• a C2-20 alkenyl group;
• a C2-20 alkynyl group;
• a C1-20 alkoxy group;
• a C6-30 aryloxy group;
• a fluorenyl group;
• a carbonyl group;
• an ether group;
• or a C1-20 alkoxycarbonyl group,
• 8-4-4) L1 to L3 are each independently a single bond;
• a fluorenylene group;
• C2-30 alkylene;
• C6-30 arylene;
• a C2-30 heterocyclic ring;
• C1-30 alkoxylene, C2-30 alkyleneoxy;
• C6-30 aryloxy;
• or C2-30 polyethyleneoxy,
• 8-4-5) g and h are each independently an integer from 0 to 3;
• with the proviso that g+h=3, and
• 9) The R′, R″, X2, L1 to L3, R1 to R10, and R12 to R15 may each be further substituted with one or more substituents selected from the group consisting of deuterium;
• a halogen;
• a silane group substituted or unsubstituted with a C1-30 alkyl group or C6-30 aryl group;
• a siloxane group;
• a boron group;
• a germanium group;
• a cyano group;
• an amino group;
• a nitro group;
• a C1-30 alkylthio group;
• a C1-30 alkoxy group;
• a C6-30 arylalkoxy group;
• a C1-30 alkyl group;
• a C2-30 alkenyl group;
• a C2-30 alkynyl group;
• a C6-30 aryl group;
• a C6-30 aryl group substituted with deuterium;
• a fluorenyl group;
• a C2-30 heterocyclic group comprising at least one heteroatom among O, N, S, Si, and P;
• a C3-30 alicyclic group;
• a C7-30 arylalkyl group;
• a C8-30 arylalkenyl group;
• and a combination thereof;
• or may form a ring between the neighboring substituents.