Patent ID: 8617721

Claim:
An organic light-emitting device, comprising: a substrate; a first electrode on the substrate; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and a first layer including a cyano group-containing compound and a hole transporting compound, the first layer being between the first electrode and the emission layer and a distance between the first layer and the emission layer being about 50 â„« or greater, wherein: the first electrode includes an Al-based reflective layer and a transparent conductive layer sequentially stacked on the substrate, the Al-based reflective layer including a first element and nickel (Ni), the first element includes at least one of lanthanum (La), cerium (Ce), praseodymium (Pr), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu), and the hole transporting compound includes a compound represented by Formula 41 or 42 below: wherein R 10 is represented by â€”(Ar 1 ) n â€”Ar 2 ; R 16 is represented by â€”(Ar 11 ) m â€”Ar 12 ; Ar 1 , Ar 11 , L 1 , and L 11 are each independently a substituted or unsubstituted C 1 -C 30 alkylene group, a substituted or unsubstituted C 2 -C 30 alkenylene group, a substituted or unsubstituted C 5 -C 30 arylene group, a substituted or unsubstituted C 4 -C 30 heteroarylene group, or a group represented by â€”N(Q 1 )-; n, m, a, and b are each independently an integer from 0 to 10; R 1 through R 3 , R 11 through R 15 , R 17 , R 18 , R 21 through R 29 , Ar 2 , Ar 12 and Q 1 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 1 -C 30 alkylthiol group, a substituted or unsubstituted C 5 -C 30 aryl group, a C 4 -C 30 heteroaryl group, or a group represented by â€”N(Q 2 )(Q 3 ); and Q 2 and Q 3 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 1 -C 30 alkylthiol group, a substituted or unsubstituted C 5 -C 30 aryl group, or a substituted or unsubstituted C 4 -C 30 heteroaryl group, wherein n groups of Ar 1 in â€”(Ar 1 ) n â€” are identical to or different from each other, m groups of Ar 11 in â€”(Ar 11 ) m â€” are identical to or different from each other, a groups of L 1 in -(L 1 ) a - are identical to or different from each other, and b groups of L 11 in -(L 11 ) b - are identical to or different from each other.