# US 8,771,842 B2 · Benzo[b]chrysene compound and organic light-emitting element including the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,771,842 B2
- Document ID: US8771842B2
- Status: Granted
- Kind: B2
- Application number: 13/076,111
- Filed: 2011-03-30
- Published: 2011-10-06
- Granted: 2014-07-08
- Earliest claimed: 2010-03-31
- Assignees: Canon Kabushiki Kaisha
- Applicants: Tetsuya Kosuge; Jun Kamatani; Kengo Kishino; Hiroyuki Tomono
- Inventors: Tetsuya Kosuge; Jun Kamatani; Kengo Kishino; Hiroyuki Tomono
- Web page: https://patentgrep.com/patent/US8771842B2

## CPC

- C07C 15/20: Polycyclic condensed hydrocarbons
- H10K 85/623: {containing five rings, e.g. pentacene}
- H10K 85/626: {containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene}
- C07C 2603/52: containing five condensed rings
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 85/624: {containing six or more rings}
- H10K 85/633: {comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom}
- Y10S 428/917: Electroluminescent
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

The present invention provides a benzo[b]chrysene compound represented by general formula [1] below and an organic light-emitting element including the compound. In the general formula [1], Ar represents a substituted or unsubstituted aromatic hydrocarbon group, and R1 to R4 are each independently selected from the group consisting of a hydrogen atom, substituted or unsubstituted alkyl groups, and substituted or unsubstituted aromatic hydrocarbon groups.

## Claims

### Claim 1

A benzo[b]chrysene compound represented by the following general formula [1]:
wherein in the general formula [1], Ar represents a substituted or unsubstituted aromatic hydrocarbon group, and R1 to R4 are each independently selected from the group consisting of a hydrogen atom, substituted or unsubstituted alkyl groups, and substituted or unsubstituted aromatic hydrocarbon groups.

### Claim 2 (depends on 1)

The benzo[b]chrysene compound according to claim 1, represented by the following general formula [2]:
wherein in the general formula [2], Ar represents the substituted or unsubstituted aromatic hydrocarbon group.

### Claim 3 (depends on 2)

The benzo[b]chrysene compound according to claim 2, represented by the following general formula [3]:
wherein in the general formula [3], X1 to X5 are each independently selected from the group consisting of a hydrogen atom, substituted or unsubstituted alkyl groups, and substituted or unsubstituted aromatic hydrocarbon groups.

### Claim 4 (depends on 1)

An organic light-emitting element comprising:
a pair of electrodes; and
an organic compound layer disposed between the pair of electrodes,
wherein the organic compound layer contains the benzo[b]chrysene compound according to claim 1.

### Claim 5 (depends on 1, 4)

The organic light-emitting element according to claim 4,
wherein the organic compound layer is a light emitting layer containing a host material and a guest material, and the host material is the benzo[b]chrysene compound according to claim 1.

### Claim 6 (depends on 4)

A display device comprising:
the organic light-emitting element according to claim 4; and
a switching element connected to the organic light-emitting element.

### Claim 7 (depends on 5)

The organic light-emitting element according to claim 5, wherein the guest is at least one of the following compounds:

### Claim 8 (depends on 5)

The organic light-emitting element according to claim 5, wherein the guest is an anthracene derivative.

### Claim 9 (depends on 5)

The organic light-emitting element according to claim 5, wherein the guest is at least one of the following compounds:

### Claim 10 (depends on 5)

A device comprising the organic light-emitting element according to claim 5 and a color filter.

### Claim 11 (depends on 5)

An illuminating device comprising the organic light-emitting element according to claim 5.

### Claim 12 (depends on 5)

An electrophotographic printer comprising a latent image writing light source having the organic light-emitting element according to claim 5.