Organic electroluminescence materials comprising substituted carbazoles and organic electroluminescence devices having the same
AssigneeSamsung Display Co., Ltd.
InventorHiroaki Itoi
Life of this patent
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Abstract
The organic EL material is represented by Formula (1): where X1 to X4 are each independently a nitrogen (N) atom or a carbon atom that is monovalently bonded to R1(C—R1), R1 is a hydrogen atom, a halogen atom, an aryl group having 6 to 18 carbon atoms, a hetero aryl group having 6 to 18 carbon atoms, or an alkyl group having 1-12 carbon atoms, R2 to R10 are each independently hydrogen, an aryl group having 6 to 30 carbon atoms, or hetero aryl group having 6 to 30 carbon atoms, and at least one of X1 to X4 is a nitrogen atom.
Claims7
An organic electroluminescence material represented by Formula 1, below:
- wherein:
- X1, X2, X3 and X4 are each independently a nitrogen atom or a carbon atom that is monovalently bonded to a substituent R1, where R1 is a hydrogen atom, a halogen atom, an aryl group having 6 to 18 carbon atoms, a heteroaryl group having 6 to 18 carbon atoms, an alkyl group having 1 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms;
- R2, R3, R4, R5, R6, R7, R8, R9 and R10 are each independently an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 6 to 30 carbon atoms;
- and
- at least one of X1, X2, X3 and X4 is a nitrogen atom.
An organic electroluminescence device comprising an organic electroluminescence material represented by Formula 1, below:
- wherein:
- X1, X2, X3 and X4 are each independently a nitrogen atom or a carbon atom that is monovalently bonded to a substituent R1, where R1 is a hydrogen atom, a halogen atom, an aryl group having 6 to 18 carbon atoms, a heteroaryl group having 6 to 18 carbon atoms, an alkyl group having 1 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms;
- R2, R3, R4, R5, R6, R7, R8, R9 and R10 are each independently an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 6 to 30 carbon atoms;
- and
- at least one of X1, X2, X3 and X4 is a nitrogen atom.
An organic electroluminescence device comprising an organic electroluminescence material represented by any one of compounds 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45 and 46, below:
Dependencies are inferred from the claim text.