# US 8,771,840 B2 · Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device

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- Number: US 8,771,840 B2
- Document ID: US8771840B2
- Status: Granted
- Kind: B2
- Application number: 12/942,214
- Filed: 2010-11-09
- Published: 2011-05-19
- Granted: 2014-07-08
- Earliest claimed: 2009-11-13
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Hiroki Suzuki; Tsunenori Suzuki; Satoshi Seo
- Inventors: Hiroki Suzuki; Tsunenori Suzuki; Satoshi Seo
- Web page: https://patentgrep.com/patent/US8771840B2

## CPC

- C07F 5/025: {Boronic and borinic acid compounds}
- C07D 307/91: Dibenzofurans; Hydrogenated dibenzofurans
- C07D 333/76: Dibenzothiophenes
- C09K 11/06: containing organic luminescent materials
- H05B 33/10: Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
- H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene}
- H10K 85/626: {containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene}
- H10K 85/6574: {comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes}
- H10K 85/6576: {comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene}
- C09K 2211/1007: Non-condensed systems
- C09K 2211/1011: Condensed systems
- C09K 2211/1088: containing oxygen as the only heteroatom
- C09K 2211/1092: containing sulfur as the only heteroatom
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 85/324: {comprising aluminium, e.g. Alq3}
- H10K 85/631: {Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine}
- H10K 85/633: {comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom}
- H10K 2101/10: Triplet emission
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- 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
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption.

## Claims

### Claim 1

A light-emitting element comprising a heterocyclic compound between a pair of electrodes,
wherein the heterocyclic compound comprises a structure represented by General Formula (G1),
wherein A represents a substituent represented by General Formula (S1) or (S2),
wherein Ar1 and Ar2 independently represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms,
wherein R1 to R18 independently represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and
wherein X represents oxygen or sulfur, wherein the heterocyclic compound is included in a light-emitting layer.

### Claim 2 (depends on 1)

The light-emitting element according to claim 1, wherein the light-emitting layer comprises a light-emitting substance and the heterocyclic compound.

### Claim 3 (depends on 1)

The light-emitting element according to claim 1,
wherein the heterocyclic compound is included in a hole-transport layer between the pair of electrodes.

### Claim 4 (depends on 1)

A light-emitting device comprising the light-emitting element according to claim 1.

### Claim 5 (depends on 4)

An electronic device comprising the light-emitting device according to claim 4.

### Claim 6 (depends on 4)

A lighting device comprising the light-emitting device according to claim 4.