# US 12,180,177 B2 · Compound and organic light emitting diode comprising same

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- Number: US 12,180,177 B2
- Document ID: US12180177B2
- Status: Granted
- Kind: B2
- Application number: 17/056,729
- Filed: 2019-07-09
- Published: 2021-07-01
- Granted: 2024-12-31
- Earliest claimed: 2018-07-09
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Hongsik Yoon; Wanpyo Hong; Jin Joo Kim; Dong Hoon Lee; Su Jin Han; Seulchan Park
- Web page: https://patentgrep.com/patent/US12180177B2

## CPC

- C07D 333/76: Dibenzothiophenes
- C07D 251/24: to three ring carbon atoms
- C07D 409/14: containing three or more hetero rings
- C09K 11/06: containing organic luminescent materials
- H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- 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}
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/15: Hole transporting layers
- H10K 50/16: Electron transporting layers
- H10K 50/171: {Electron injection layers}
- H10K 2101/10: Triplet emission
- H10K 2101/20: Delayed fluorescence emission
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A compound of Chemical Formula 1, and an organic light emitting device including the same.

## Claims

### Claim 1

A compound of the following Chemical Formula 2:
wherein, in Chemical Formula 2:
L is a direct bond or a substituted or unsubstituted arylene group;
Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group; a substituted or unsubstituted heterocyclic group; or a substituted or unsubstituted silyl group,
R1 and R2 are the same as or different from each other, and each independently hydrogen, deuterium, a halogen group, a nitrile group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted arylsilyl group, a substituted or unsubstituted alkylsilyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group;
m and n are each an integer of 0 to 8;
when m is 2 or greater, R1s are the same as or different from each other; and
when n is 2 or greater, R2s are the same as or different from each other.

### Claim 2 (depends on 1)

The compound of claim 1, wherein L is a direct bond; or a substituted or unsubstituted phenylene group.

### Claim 3 (depends on 1)

The compound of claim 1, wherein Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted phenyl group; a substituted or unsubstituted biphenyl group; a substituted or unsubstituted dibenzothiophene group; a substituted or unsubstituted dibenzofuran group; or a substituted or unsubstituted benzothiazole group.

### Claim 4 (depends on 1)

The compound of claim 1, wherein the compound of Chemical Formula 2 is selected from among the following structural formulae:

### Claim 5 (depends on 1)

The compound of claim 1, wherein the compound of Chemical Formula 2 has a glass transition temperature of 120° C. or higher.

### Claim 6 (depends on 1)

An organic light emitting device comprising:
a first electrode;
a second electrode provided opposite to the first electrode; and
one or more organic material layers provided between the first electrode and the second electrode,
wherein at least one the organic material layers includes the compound of claim 1.

### Claim 7 (depends on 6)

The organic light emitting device of claim 6, wherein the organic material layer includes a light emitting layer, and the light emitting layer includes the compound of Chemical Formula 2.

### Claim 8 (depends on 6)

The organic light emitting device of claim 6, wherein the organic material layer includes a light emitting layer, and the light emitting layer includes the compound of Chemical Formula 2 as a host.

### Claim 9 (depends on 6)

The organic light emitting device of claim 6, wherein the organic material layer includes an electron injection layer, an electron transfer layer, or an electron injection and transfer layer, and the electron injection layer, the electron transfer layer, or the electron injection and transfer layer includes the compound of Chemical Formula 2.

### Claim 10 (depends on 6)

The organic light emitting device of claim 6, wherein the organic material layer includes a hole injection layer, a hole transfer layer, or a hole injection and transfer layer, and the hole injection layer, the hole transfer layer, or the hole injection and transfer layer includes the compound of Chemical Formula 2.