# US 2025/0145602 A1 · Organic Compound, and Organic Light Emitting Device Including the Same

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- Number: US 2025/0145602 A1
- Document ID: US20250145602A1
- Status: Published application
- Kind: A1
- Application number: 18/920,719
- Filed: 2024-10-18
- Published: 2025-05-08
- Earliest claimed: 2023-11-03
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Min-Surk Hyung; Seon-Keun Yoo; Shin-Han Kim; Sang-Beom Kim
- Web page: https://patentgrep.com/patent/US20250145602A1

## CPC

- C07D 413/14: containing three or more hetero rings
- C07D 417/14: containing three or more hetero rings
- C09K 11/02: Use of particular materials as binders, particle coatings or suspension media therefor
- C09K 11/06: containing organic luminescent materials
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/16: Electron transporting layers
- H10K 50/18: Carrier blocking layers
- H10K 50/181: {Electron blocking layers}
- H10K 85/30: Coordination compounds
- H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene}
- H10K 85/622: {containing four rings, e.g. pyrene}
- H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)}
- H10K 85/656: {comprising two or more different heteroatoms per ring (H10K85/652 takes precedence)}
- H10K 85/657: {Polycyclic condensed heteroaromatic hydrocarbons}
- 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}
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic compound, and an organic light emitting diode and an organic light emitting device including the same are disclosed. For example, an organic compound is represented by the following chemical formula. The organic light emitting diode and the organic light emitting device each includes the organic compound.

## Claims

### Claim 1

An organic compound represented by Formula 1:
wherein each of a1 and a2 is independently an integer of 0 to 4, and each of a3 and a4 is independently 0 or 1,
each of X1 and X2 is independently O or S,
each of Ar1 and Ar2 is independently selected from the group consisting of a substituted or unsubstituted C6 to C60 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group containing one of N, O and S,
each R1 and R2 is independently selected from the group consisting of a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group containing one of N, O and S, and
each of L1 and L2 is independently selected from the group consisting of a substituted or unsubstituted C6 to C60 arylene group and a substituted or unsubstituted C3 to C60 heteroarylene group containing one of N, O and S.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

The organic compound according to claim 1, wherein each of Ar1 and Ar2 is independently selected from Formula 1a:

### Claim 4 (depends on 1)

The organic compound according to claim 1, wherein Formula 1 is represented by Formula 1b-1:
wherein the definition of a1, a2, a3, a4, X1, X2, Ar2, Ar2, R1, R2, L1 and L2 is the same as for Formula 1.

### Claim 5 (depends on 1)

The organic compound according to claim 1, wherein Formula 1 is represented by Formula 1b-2:
wherein the definition of a1, a2, X1, X2, Ar1, Ar2, R1 and R2 is the same as for Formula 1.

### Claim 6 (depends on 1)

The organic compound according to claim 1, wherein the organic compound is one of the compounds in Formula 2:

### Claim 7 (depends on 1)

An organic light emitting device, comprising:
a substrate; and
an organic light emitting diode positioned on the substrate and including:
a first electrode;
a second electrode facing the first electrode; and
a first emitting part between the first electrode and the second electrode, the first emitting part including a first emitting material layer, a first electron transporting layer, and a first hole blocking layer,
wherein the first electron transporting layer is positioned between the first emitting material layer and the second electrode, and the first hole blocking layer is positioned between the first emitting material layer and the first electron transporting layer, and
wherein at least one of the first electron transporting layer and the first hole blocking layer includes a first compound being the organic compound according to claim 1.

### Claim 8 (depends on 7)

The organic light emitting device according to claim 7, wherein the first electron transporting layer includes the first compound and a second compound represented by Formula 3:

### Claim 9 (depends on 8)

The organic light emitting device according to claim 8, wherein a weight % ratio of the first compound to the second compound is 1:9 to 9:1, 2:8 to 8:2 or 3:7 to 7:3.

### Claim 10 (depends on 8)

The organic light emitting device according to claim 8, wherein the first compound and the second compound have the same weight %.

### Claim 11 (depends on 7)

The organic light emitting device according to claim 7, wherein each of the first emitting material layer, the first electron transporting layer, and the first hole blocking layer includes the first compound.

### Claim 12 (depends on 7)

The organic light emitting device according to claim 7, wherein the first emitting material layer includes a first host being a compound represented by Formula 7:
wherein each of b1 and b4 is independently an integer of 0 to 4, each of b2 and b3 is independently an integer of 0 to 3,
each R11, R12, R13, and R14 is independently selected from the group consisting of deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C6 to C60 aryl group, and a substituted or unsubstituted C3 to C60 heteroaryl group,
each of L11 and L12 is independently selected from the group consisting of a single bond, a substituted or unsubstituted C6 to C60 arylene group, and a substituted or unsubstituted C3 to C60 heteroarylene group, and
each of Ar11 and Ar12 is independently selected from the group consisting of a substituted or unsubstituted C6 to C60 aryl group, and a substituted or unsubstituted C3 to C60 heteroaryl group.

### Claim 13 (depends on 12)

The organic light emitting device according to claim 12, wherein the first host is one of the compounds in Formula 8:

### Claim 14 (depends on 12)

The organic light emitting device according to claim 12, wherein the first emitting material layer further includes a second host being an organic compound represented by Formula 1, wherein the second host is the same as or different to the first compound.

### Claim 15 (depends on 12)

The organic light emitting device according to claim 12, wherein the first emitting material layer further includes a second host being an organic compound according to Formula 4:

### Claim 16 (depends on 12)

The organic light emitting device according to claim 12, wherein the first emitting material layer further includes a second host being an organic compound represented by Formula 5:
wherein g1 integer of 0 to 4,
each of R51 and R52 is independently selected from the group consisting of a substituted or unsubstituted C6 to C60 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
each R53 is selected from the group consisting of a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C60 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
X51 is CR54,
R54 is selected from the group consisting of a bonding site, hydrogen, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C60 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
at least one of R51, R52 and R54 is a substituted or unsubstituted carbazolyl group, and
each of L51 and L52 is independently selected from the group consisting of a single bond and a substituted or unsubstituted C6 to C60 arylene group.

### Claim 17 (depends on 16)

The organic light emitting device according to claim 16, wherein the second host is an organic compound represented by Formula 5a:
wherein the definition of R51, R52, R53, X51, L51 and L52 is the same as for Formula 5, and g2 is an integer of 0 to 3.

### Claim 18 (depends on 16)

The organic light emitting device according to claim 16, wherein the second host is an organic compound represented by one of Formulas 5b to 5f:
wherein in each of Formulas 5b to 5e, the definition of R51, R52, R53, R54, L51 and L52 is the same as for Formula 5, and g2 is an integer of 0 to 3, and in Formula 5f, the definition of R51, R52, R53, L51 and L52 is the same as for Formula 5, and g3 is an integer of 0 to 4, optionally wherein R51 is a carbazole group unsubstituted or substituted with a C1 to C20 alkyl group, and R52 is selected from the group consisting of phenyl, pyrenyl, fluorenyl, dibenzofuranyl, dibenzothiophenyl and carbazolyl, and may be unsubstituted or substituted with at least one of a C1 to C20 alkyl group and a C6 to C60 aryl group.

### Claim 19 (depends on 16)

The organic light emitting device according to claim 16, wherein the second host is one of the compounds in Formula 6:

### Claim 20 (depends on 13)

The organic light emitting device according to claim 13, wherein a weight % of the first host to the second host is 1:9 to 9:1, 2:8 to 8:2 or 7:3 to 3:7, or wherein the weight % of the first host and the weight % of the second host may be the same.

### Claim 21 (depends on 6)

The organic light emitting device according to claim 6, wherein the organic light emitting diode further includes:
a second emitting part including a first blue emitting material layer, a second electron transporting layer and a second hole blocking layer and positioned between the first electrode and the first emitting part.

### Claim 22 (depends on 21)

The organic light emitting device according to claim 21, wherein at least one of the second electron transporting layer and the second hole blocking layer includes an organic compound represented by Formula 1, wherein the organic compound is the same as or different to the first compound.

### Claim 23 (depends on 21)

The organic light emitting device according to claim 21, wherein the first emitting part further includes a red emitting material layer between the second emitting part and the first emitting material layer.

### Claim 24 (depends on 22)

The organic light emitting device according to claim 22, wherein the first emitting part further includes a yellow-green emitting material layer between the first emitting material layer and the red emitting material layer.

### Claim 25 (depends on 6)

The organic light emitting device according to claim 6, further comprising:
a color filter layer corresponding to a red pixel region, a green pixel region and a blue pixel region.