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US 9,960,363 B2Granted
Organic electroluminescent element
AssigneeDoosan Corporation
InventorsMin-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
Life of this patent
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Abstract
The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
Claims16
An organic electroluminescent element, comprising:
- an anode;
- a cathode;
- and an organic layer interposed therebetween, wherein the organic layer comprises a compound of the following Formula 1:
- wherein,
- Ra and Rb are the same or different from each other and are each independently selected from the group consisting of a C1-C40 alkyl group and a C6-C60 aryl group, or combine with each other to form a fused ring,
- R1 to R3 are the same or different from each other and are each independently selected from the group consisting of a hydrogen, a deuterium, a halogen, a cyano group, a nitro group, an amino group, a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C1-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C1-C40 phosphine group, a C1-C40 phosphine oxide group, and a C6-C60 arylamine group, or each of R1 to R3 forms a fused ring when combined with an adjacent one,
- L is selected from the group consisting of a single bond, a C6-C18 arylene group, and a heteroarylene group having 5 to 18 nuclear atoms,
- Z1 to Z5 are the same or different from each other and are each independently N or C(R4), provided that at least one of Z1 to Z5 is N, and when C(R4) is present in a plural number, they are the same or different from each other,
- c and e are each an integer of 0 to 4,
- d is an integer of 0 to 3,
- m and n are each an integer of 1 to 3,
- R4 is selected from the group consisting of a hydrogen, a deuterium, a halogen, a cyano group, a nitro group, an amino group, a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C1-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C1-C40 phosphine group, a C1-C40 phosphine oxide group and a C6-C60 arylamine group, or bonded to an adjacent substituent to form a fused ring,
- the alkyl and aryl groups of Ra and Rb, the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkyloxy, aryloxy, alkylsilyl, arylsilyl, alkylboron, arylboron, phosphine, phosphine oxide, and arylamine groups of R1 to R4, and the arylene and heteroarylene groups of L may be each independently unsubstituted or substituted with at least one substituent selected from the group consisting of a deuterium, a halogen, a cyano group, a nitro group, an amino group, a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C1-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C1-C40 phosphine group, a C1-C40 phosphine oxide group, and a C6-C60 arylamine group, provided that when the substituent is present in a plural number, they are the same or different from each other.
10 more elements
Dependencies are inferred from the claim text.