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US 9,287,515 B2Granted
Compositions comprising organic and organometallic compounds, and their applications in organic electroluminescence, light emission, display, and illumination devices
AssigneeUDC Ireland Limited
InventorEiji Fukuzaki
Life of this patent
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Abstract
An object of the present invention is to provide an organic electroluminescence device having excellent light emission efficiency and durability, in particular, durability when driving at a high temperature. Provided is an organic electroluminescence device including on a substrate a pair of electrodes, and at least one layer of an organic layer including a light emitting layer containing a light emitting material disposed between the electrodes, wherein the light emitting layer includes at least each one of specific indolocarbazole derivatives and specific condensed ring metal complexes.
Claims12
An organic electroluminescence device, comprising on a substrate:
- a pair of electrodes;
- at least one layer of an organic layer including a light emitting layer containing a light emitting material disposed between the electrodes, wherein the light emitting layer contains at least each one of a compound represented by the following Formula (3) and a compound represented by the following Formula (D-5):
- Z3—(Y3)n 3 (3)
- wherein Z3 represents benzene, or biphenyl and may be further substituted by at least one group selected from the group consisting of an alkyl group, an aryl group, a silyl group, a cyano group, a fluorine atom and a combination thereof;
- Y3 represents a group represented by the following Formula (15a);
- and n3 represents an integer of 2:
- wherein R155 represents a hydrogen atom;
- each of R154 and R156 independently represents a hydrogen atom, an alkyl group, a silyl group, a fluorine atom, a cyano group or a trifluoromethyl group, and these groups may be further substituted with at least one of an alkyl group having 1 to 6 carbon atoms and a phenyl group;
- R157 represents a benzene ring, a naphthalene ring, a pyridine ring, a triazine ring or a pyrimidine ring, and these rings may be further substituted with at least one group selected from a methyl group, an isobutyl group, a t-butyl group, a neopentyl group, a phenyl group, a naphthyl group, a cyano group and a fluorine atom;
- and * represents a bond for linking to Z3:
- wherein each of R3 to R10 independently represents a hydrogen atom, an alkyl group or an aryl group;
- each of R3′ to R6′ represents a hydrogen atom, an alkyl group or an aryl group;
- and each of Ry independently represents a hydrogen atom, an alkyl group, a perfluoroalkyl group, a halogen atom or an aryl group;
- wherein the compound of formula (D-5) is selected from the group consisting of:
11 more elements
A composition, comprising:
- at least each one of a compound represented by the following Formula (3) and a compound represented by the following Formula (D-5):
- Z3—(Y3)n 3 (3)
- wherein Z3 represents benzene, or biphenyl, and may be further substituted by at least one group selected from the group consisting of an alkyl group, an aryl group, a silyl group, a cyano group, a fluorine atom and a combination thereof;
- Y3 represents a group represented by the following Formula (15a);
- and n3 represents an integer of 2:
- wherein R155 represents a hydrogen atom;
- each of R154 and R156 independently represents a hydrogen atom, an alkyl group, a silyl group, a fluorine atom, a cyano group or a trifluoromethyl group, and these groups may be further substituted with at least one of an alkyl group having 1 to 6 carbon atoms and a phenyl group;
- R157 represents a benzene ring, a naphthalene ring, a pyridine ring, a triazine ring or a pyrimidine ring, and these rings may be further substituted with at least one group selected from a methyl group, an isobutyl group, a t-butyl group, a neopentyl group, a phenyl group, a naphthyl group, a cyano group and a fluorine atom;
- and * represents a bond for linking to Z3:
- wherein each of R3 to R10 independently represents a hydrogen atom, an alkyl group or an aryl group;
- each of R3′ to R6′ represents a hydrogen atom, an alkyl group or an aryl group;
- wherein each of Ry independently represents a hydrogen atom, an alkyl group, a perfluoroalkyl group, a halogen atom or an aryl group;
- wherein the compound of formula (D-5) is selected from the group consisting of:
10 more elements
A light emitting layer, comprising:
- at least each one of a compound represented by the following Formula (3) and a compound represented by the following Formula (D-5):
- Z3—(Y3)n 3 (3)
- wherein Z3 represents benzene, or biphenyl and may be further substituted by at least one group selected from the group consisting of an alkyl group, an aryl group, a silyl group, a cyano group, a fluorine atom and a combination thereof;
- Y3 represents a group represented by the following Formula (15a);
- and n3 represents an integer of 2:
- wherein R155 represents a hydrogen atom;
- each of R154 and R156 independently represents a hydrogen atom, an alkyl group, a silyl group, a fluorine atom, a cyano group or a trifluoromethyl group, and these groups may be further substituted with at least one of an alkyl group having 1 to 6 carbon atoms and a phenyl group;
- R157 represents a benzene ring, a naphthalene ring, a pyridine ring, a triazine ring or a pyrimidine ring, and these rings may be further substituted with at least one group selected from a methyl group, an isobutyl group, a t-butyl group, a neopentyl group, a phenyl group, a naphthyl group, a cyano group and a fluorine atom;
- and represents a bond for linking to Z3:
- wherein each of R3 to R10 independently represents a hydrogen atom, an alkyl group or an aryl group;
- R3′ to R6′ represents a hydrogen atom, an alkyl group or an aryl group;
- wherein each of Ry independently represents a hydrogen atom, an alkyl group, a perfluoroalkyl group, a halogen atom or an aryl group
- wherein the compound of formula (D-5) is selected from the group consisting of:
10 more elements
Dependencies are inferred from the claim text.