# US 2018/0026207 A1 · Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

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- Number: US 2018/0026207 A1
- Document ID: US20180026207A1
- Status: Published application
- Kind: A1
- Application number: 15/652,799
- Filed: 2017-07-18
- Published: 2018-01-25
- Earliest claimed: 2016-07-20
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Kyoko Takeda; Harue OSAKA; Yusuke TAKITA; Naoaki HASHIMOTO; Tsunenori SUZUKI; Kunihiko SUZUKI; Satoshi SEO
- Web page: https://patentgrep.com/patent/US20180026207A1

## CPC

- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- C07D 209/86: with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
- C09K 11/06: containing organic luminescent materials
- H05B 33/14: characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}
- H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene}
- C09K 2211/1007: Non-condensed systems
- C09K 2211/1011: Condensed systems
- C09K 2211/1018: Heterocyclic compounds
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/121: {for assisting energy transfer, e.g. sensitization}
- H10K 2101/20: Delayed fluorescence emission
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

To provide a novel fluorescent organic compound (a fluorescent compound). The organic compound is a substance that emits fluorescence and an organic compound (a host material) in which FIA can occur efficiently. In the organic compound, triplet excitons, which do not contribute to light emission, can be efficiently converted into singlet excitons. The use of such an organic compound can increase emission efficiency of a light-emitting element.

## Claims

### Claim 1

An organic compound represented by General Formula (G):
wherein either of A1 and A2 is represented by General Formula (G-1) and the other is hydrogen or another substituent,
wherein α1 and α2 each independently represent a substituted or unsubstituted phenylene group,
wherein n and in each independently represent 1 or 2, and
wherein P1 and P2 each independently represent hydrogen, a substituted or unsubstituted phenylene group, or a substituted or unsubstituted biphenylene group.

### Claim 2 (depends on 1)

The organic compound according to claim 1,
wherein the another substituent represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 3 (depends on 1)

The organic compound according to claim 1,
wherein, when substituents are further included in General Formula (G), the substituents each independently represent an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 4 (depends on 1)

The organic compound according to claim 1,
wherein α1 and α2 are each independently represented by any one of Structure Formulae (α-1) to (α-5):

### Claim 5 (depends on 1)

The organic compound according to claim 1,
wherein P1 and P2 are each represented by any one of Structure Formulae (Ar-1) to (Ar-6):

### Claim 6 (depends on 1)

The organic compound according to claim 1,
wherein the another substituent is represented by any one of Structure Formulae (R-1) to (R-11):

### Claim 7 (depends on 1)

The organic compound according to claim 1,
wherein the organic compound is represented by any one of Structure Formula (100), Structure Formula (110), and Structure Formula (120):

### Claim 8

An organic compound represented by General Formula (F-1):
wherein either of Al and A2 is a substituent represented by General Formula (G-1) and the other is hydrogen or another substituent,
wherein α1 and α2 each independently represent a substituted or unsubstituted phenylene group, and
wherein n and m each independently represent 1 or 2.

### Claim 9 (depends on 8)

The organic compound according to claim 8,
wherein the another substituent represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 10 (depends on 8)

The organic compound according to claim 8,
wherein, when substituents are further included in General Formula (F-1), the substituents each independently represent an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 11 (depends on 8)

The organic compound according to claim 8,
wherein α1 and α2 are each independently represented by any one of Structure Formulae (α-1) to (α-5):

### Claim 12 (depends on 8)

The organic compound according to claim 8,
wherein the another substituent is represented by any one of Structure Formulae (R-1) to (R-11):

### Claim 13 (depends on 8)

The organic compound according to claim 8,
wherein the organic compound is represented by Structure Formula (m1):

### Claim 14

An organic compound represented by General Formula (F-2):
wherein either of A1 and A2 is a substituent represented by General Formula (G-1) and the other is hydrogen or another substituent,
wherein α1 and α2 each independently represent a substituted or unsubstituted phenylene group,
wherein n and m each independently represent 1 or 2, and
wherein Pl and P2 each independently represent hydrogen, a substituted or unsubstituted phenylene group, or a substituted or unsubstituted biphenylene group.

### Claim 15 (depends on 14)

The organic compound according to claim 14,
wherein the another substituent represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 16 (depends on 14)

The organic compound according to claim 14,
wherein, when substituents are further included in General Formula (F-2), the substituents each independently represent an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an alkylphenyl group, or a phenyl group.

### Claim 17 (depends on 14)

The organic compound according to claim 14,
wherein α1 and α2 are each independently represented by any one of Structure Formulae (α-1) to (α-5):

### Claim 18 (depends on 14)

The organic compound according to claim 14,
wherein P1 and P2 are each represented by any one of Structure Formulae (Ar-1) to (Ar-6):

### Claim 19 (depends on 14)

The organic compound according to claim 14,
wherein the another substituent is represented by any one of Structure Formulae (R-1) to (R-11):

### Claim 20 (depends on 14)

The organic compound according to claim 14,
wherein the organic compound is represented by Structure Formula (m2):