# US 12,010,912 B2 · Heterocyclic compound and organic light emitting device comprising the same

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- Number: US 12,010,912 B2
- Document ID: US12010912B2
- Status: Granted
- Kind: B2
- Application number: 17/049,820
- Filed: 2019-07-24
- Published: 2021-08-26
- Granted: 2024-06-11
- Earliest claimed: 2018-07-24
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Min Woo Jung; Dong Hoon Lee; Boonjae Jang; Jungha Lee; Su Jin Han; Seulchan Park; Sunghyun Hwang
- Web page: https://patentgrep.com/patent/US12010912B2

## CPC

- H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)}
- C07D 405/14: containing three or more hetero rings
- C07D 409/14: containing three or more hetero rings
- C09K 11/06: containing organic luminescent materials
- 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 2211/1018: Heterocyclic compounds
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 2101/10: Triplet emission
- H10K 2101/90: {Multiple hosts in the emissive layer}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

A novel heterocyclic compound of Chemical Formula 1 and organic light emitting device including the same.

## Claims

### Claim 1

A compound of the following Chemical Formula 1-1:
Chemical Formula 1-1
wherein, in Chemical Formula 1-1,
each X is independently N or CH, with the proviso that at least two of X are N,
Y1, Y2 and Y3 are each independently O or S, and
Ar1 and Ar2 are each independently substituted or unsubstituted C6-60 aryl.

### Claim 2 (depends on 1)

The compound according to claim 1, wherein each X is N.

### Claim 3 (depends on 1)

The compound according to claim 1, wherein Ar1 and Ar2 are phenyl.

### Claim 4 (depends on 1)

The compound according to claim 1, wherein the compound of Chemical Formula 1-1 is one selected from the group consisting of the following compounds:

### Claim 5 (depends on 1)

An organic light emitting device comprising:
a first electrode;
a second electrode that is disposed opposite to the first electrode; and
one or more organic material layers that are disposed between the first electrode and the second electrode, wherein one or more one layers of the organic material layers comprise the compound according to claim 1.

### Claim 6 (depends on 5)

The organic light emitting device according to claim 5, wherein organic material layer may include a light emitting layer, wherein the light emitting layer includes two or more host materials.

### Claim 7 (depends on 6)

The organic light emitting device according to claim 6, wherein the two or more host materials include a compound of Chemical Formula 1-1.