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US 2026/0231604 A1Published application
Compound, and light-emitting element, display device, lighting device and photosensitizer each containing same
AssigneeToray Industries, Inc.
InventorsRyota KOTANI, Kazumasa NAGAO
Life of this patent
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Abstract
The main object of the present invention is to provide an organic EL element that has high luminance efficiency and long service life and is a compound as represented by the general formula (1) below, where R1, R2, R3, and L are as defined, and A denotes a structure as represented by the general formula (2) or (3) below, where R4 to R14 and X1 to X8 are as defined.
Claims19
A compound as represented by the general formula (1) given below:
- wherein, in the general formula (1), R1 and R2 are each independently one selected from the group consisting of substituted or unsubstituted aryl groups and substituted or unsubstituted heteroaryl groups, R1 and R2 may be linked to each other to form a ring structure, R3 is selected from the group consisting of substituted or unsubstituted alkyl groups, substituted or unsubstituted aryl groups, and substituted or unsubstituted heteroaryl groups, L denotes a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group, and A denotes a structure as represented by the general formula (2) or (3) given below:
- wherein, in the general formulae (2) and (3), R4 to R14 are each independently one selected from the group consisting of a hydrogen atom, substituted or unsubstituted alkyl groups, substituted or unsubstituted alkoxy groups, substituted or unsubstituted aryl groups, and substituted or unsubstituted heteroaryl groups, where one of R4 to R11 is directly bonded to L, and one of R12 to R14 is directly bonded to L, R7 and R3 may be linked to each other to form a ring structure, and X1 to X8 are each independently a carbon atom or a nitrogen atom, where at least either of X1 and X2 is a nitrogen atom and at least one of X3 to X3 is a nitrogen atom.
Dependencies are inferred from the claim text.