Patent ID: 11937440
Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 9:
10. The organic electroluminescent device of claim 8,
wherein Ar1 to Ar4 are each independently selected from the group consisting of a C1 to C40 alkyl group, a C6 to C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6 to C60 aryloxy group, a C6 to C60 arylphosphine oxide group and a C6 to C60 arylamine group,
wherein the alkyl group, the aryl group, the heteroaryl group, the aryloxy group, the arylphosphine oxide group and the arylamine group of Ar1 to Ar4 are each independently substituted or unsubstituted with one or more kinds of substituents selected from the group consisting of deuterium, halogen, a cyano group, a nitro group, a C1 to C40 alkyl group, a C6 to C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6 to C60 aryloxy group, a C6 to C60 arylphosphine oxide group and a C6 to C60 arylamine group, and
wherein when the substituents are plural in number, the substituents are the same as or different from each other.