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US 11,903,308 B2Granted
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKei Yoshida, Masatoshi Saito, Ryoji Maeda, Masato Nakamura, Tetsuya Masuda
Life of this patent
Estimating the term…
Abstract
A compound of the following formula (1) and others. R1 to R24, R31 to R35, A1 and A2 are as defined in the specification, n is an integer of 0 to 3, when A1 is an (n+1)-valent residue of benzene, n is an integer of 1 or more, and when n is 0, (A2)0 is a hydrogen atom.
Claims33
An organic electroluminescent device comprising:
- a cathode, an anode, and organic layers disposed between the cathode and the anode, wherein:
- the organic layers comprise a light-emitting layer, and a first layer disposed between the light-emitting layer and the cathode, and
- the first layer comprises a compound of formula (1A):
- wherein,
- R1 to R24 each independently represent a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms R31 to R35 each independently represent a hydrogen atom
- A1 represents a substituted or unsubstituted, (n+1)-valent residue of an aromatic hydrocarbon having 6 to 30 ring carbon atoms, or a substituted or unsubstituted, (n+1)-valent residue of an aromatic heterocyclic compound having 5 to 30 ring atoms,
- wherein a hydrogen atom represents a protium isotope and/or a deuterium isotope,
- A2 each independently represents a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, and
- n represents an integer of 1 to 3.
6 more elements
An organic electroluminescent device, comprising:
- a cathode, an anode, and organic layers disposed between the cathode and the anode, wherein:
- the organic layers comprise a light-emitting layer, and a first layer disposed between the light-emitting layer and the cathode, and
- the first layer comprises a compound of formula (2):
- wherein:
- R1 to R24 each independently represent a hydrogen atom, or a substituent, and the substituent is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms,
- R31 to R35 each independently represent a hydrogen atom,
- R41 to R42 each are independently same as R1,
- m represents 0 or 1,
- when m is 0, X is absent, and the two benzene rings are not crosslinked,
- when m is 1, X is O or S,
- p represents an integer of 0 to 5,
- q represents an integer of 0 to 4.
9 more elements
A compound of formula (1):
- wherein:
- R1 to R24 each independently represent a hydrogen atom, or a substituent, and the substituent is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, R31 to R35 each independently represent a hydrogen atom
- A1 represents a substituted or unsubstituted, (n+1)-valent residue of an aromatic hydrocarbon having 6 to 30 ring carbon atoms, or a substituted or unsubstituted, (n+1)-valent residue of an aromatic heterocyclic compound having 5 to 30 ring atoms,
- wherein a hydrogen atom represents a protium isotope and/or a deuterium isotope,
- A2 each independently represents a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, and
- n represents an integer of 1 to 3.
3 more elements
A compound of formula (2):
- wherein:
- R1 to R24 each independently represent a hydrogen atom, or a substituent, and the substituent is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms,
- R31 to R35 each independently represent a hydrogen atom,
- R41 to R42 each are independently same as R1,
- m represents 0 or 1,
- when m is 0, X is absent, and the two benzene rings are not crosslinked,
- when m is 1, X is O or S,
- p represents an integer of 0 to 5,
- q represents an integer of 0 to 4.
6 more elements
A compound of formula ET-1, ET-3, ET-4, ET-5, ET-6, ET-7, or ET-8:
An organic electroluminescent device comprising:
- a cathode, an anode, and organic layers disposed between the cathode and the anode, wherein:
- the organic layers comprise a light-emitting layer, and a first layer disposed between the light-emitting layer and the cathode, and
- the first layer comprises a compound of ET-1, ET-3, ET-4, ET-5, ET-6, ET-7, or ET-8:
Dependencies are inferred from the claim text.