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US 12,490,650 B2Granted
Triarylamine derivative, light-emitting substance, light-emitting element, light-emitting device, and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsHarue Osaka, Takahiro Ushikubo, Nobuharu Ohsawa, Satoshi Seo, Tsunenori Suzuki
Life of this patent
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Abstract
A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.
Claims18
A light-emitting device comprising:
- a first electrode;
- a second electrode;
- a light-emitting layer between the first electrode and the second electrode;
- and
- a layer comprising a compound between the first electrode and the light-emitting layer,
- wherein the light-emitting layer comprises a fluorescent light-emitting substance having an emission wavelength of 450 nm or more,
- wherein the layer is in contact with the light-emitting layer,
- wherein the compound is represented by a general formula (G1),
- wherein Ar represents any one of substituents represented by structural formulae (Ar-1) to (Ar-4),
- wherein α represents a first naphthyl group,
- wherein when the first naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein β represents hydrogen or a second naphthyl group,
- wherein when the second naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein n and m each independently represent 1 or 2, and
- wherein R1 to R8 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a phenyl group.
12 more elements
A light-emitting device comprising:
- a first electrode;
- a second electrode;
- a light-emitting layer between the first electrode and the second electrode;
- and
- a layer comprising a compound between the first electrode and the light-emitting layer,
- wherein the light-emitting layer comprises a phosphorescent light-emitting substance having an emission wavelength of 470 nm or more,
- wherein the layer is in contact with the light-emitting layer,
- wherein the compound is represented by a general formula (G1),
- wherein Ar represents any one of substituents represented by structural formulae (Ar-1) to (Ar-4),
- wherein α represents a first naphthyl group,
- wherein when the first naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein β represents hydrogen or a second naphthyl group,
- wherein when the second naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein n and m each independently represent 1 or 2, and
- wherein R1 to R8 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a phenyl group.
12 more elements
A light-emitting device comprising:
- a first electrode;
- a second electrode;
- a light-emitting layer between the first electrode and the second electrode;
- and
- a layer comprising a compound between the first electrode and the light-emitting layer,
- wherein the light-emitting layer comprises a light-emitting substance comprising iridium,
- wherein the layer is in contact with the light-emitting layer,
- wherein the compound is represented by a general formula (G1),
- wherein Ar represents any one of substituents represented by structural formulae (Ar-1) to (Ar-4),
- wherein α represents a first naphthyl group,
- wherein when the first naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein β represents hydrogen or a second naphthyl group,
- wherein when the second naphthyl group has a substituent, the substituent is an alkyl group having 1 to 6 carbon atoms or a phenyl group,
- wherein n and m each independently represent 1 or 2, and
- wherein R1 to R8 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a phenyl group.
12 more elements
Dependencies are inferred from the claim text.