HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT INCLUDING SAME

• US 20200136055A1
• Filed: 06/29/2018
• Published: 04/30/2020
• Est. Priority Date: 06/30/2017
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: HEO, Dong Uk, LEE, Dong Hoon, HUH, Jungoh, JANG, Boonjae, HAN, Miyeon, YANG, Junghoon, YUN, Heekyung
• Granted Patent: US 11,367,836 B2
• Time in Patent Office: Days
• CPC Class Codes: C07D 311/96 spiro-condensed with carbocyclic rings or ring systems
• CPC Class Codes: C07D 335/04 condensed with carbocyclic rings or ring systems
• CPC Class Codes: C07D 405/14 containing three or more hetero rings
• CPC Class Codes: C07D 409/14 containing three or more hetero rings
• CPC Class Codes: H10K 50/16 Electron transporting layers
• CPC Class Codes: H10K 50/165 comprising dopants
• CPC Class Codes: H10K 50/171 Electron injection layers
• CPC Class Codes: H10K 50/18 Carrier blocking layers
• CPC Class Codes: H10K 85/654 comprising only nitrogen as heteroatom H10K85/652 takes precedence
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/6574 comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
• CPC Class Codes: H10K 85/6576 comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene

Abstract

Provided is a heterocyclic compound of Chemical Formula 1:

and an organic light emitting device including the same.

Claims

1. A heterocyclic compound of Chemical Formula 1:

2. The heterocyclic compound of claim 1, wherein R1 to R5 and R7 to R10 are hydrogen.

3. The heterocyclic compound of claim 1, wherein Chemical Formula 1 is Chemical Formula 2 or Chemical Formula 3:

4. The heterocyclic compound of claim 1, wherein Chemical Formula 1 is one selected from among the following Chemical Formulae 1-1 to 1-8:

5. The heterocyclic compound of claim 1, wherein L1 to L4 are the same as or different from each other, and each independently is a direct bond a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted terphenylene group, a substituted or unsubstituted quaterphenylene group, a substituted or unsubstituted anthracenylene group, a substituted or unsubstituted phenanthrenylene group, a substituted or unsubstituted triphenylenylene group, a substituted or unsubstituted pyrenylene group, a substituted or unsubstituted fluorenylene group, a substituted or unsubstituted spirocyclopentanefluorenylene group, a substituted or unsubstituted dibenzofuranylene group, a substituted or unsubstituted divalent dibenzothiophene group, a substituted or unsubstituted carbazolene group, a substituted or unsubstituted pyridylene group, a substituted or unsubstituted divalent furan group, or a substituted or unsubstituted divalent thiophene group.

6. The heterocyclic compound of claim 1, wherein Chemical Formula A is one selected from among the following Chemical Formulae A-1 to A-4:

7. The heterocyclic compound of claim 1, wherein Chemical Formula C is represented by one selected from among the following Chemical Formulae C-1 to C-7:

8. The heterocyclic compound of claim 1, wherein Chemical Formula D is one selected from among the following Chemical Formulae D-1 to D-3:

9. The heterocyclic compound of claim 1, wherein:

A1 and A2 are hydrogen, A3 is -L3-Ar3, and A4 is -L4-Ar4;

or

A3 and A4 are hydrogen, A1 is -L1-Ar1, and A2 is -L2-Ar2.

10. The heterocyclic compound of claim 1, wherein Y1 and Y2 are the same as or different from each other, and each independently is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms.

11. The heterocyclic compound of claim 1, wherein Y1 and Y2 are the same as or different from each other, and each independently is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted quaterphenyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spirocyclopentanefluorenyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophene group, a substituted or unsubstituted carbazole group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted furan group, or a substituted or unsubstituted thiophene group.

12. The heterocyclic compound of claim 1, wherein Chemical Formula 1 is a compound selected from among the following compounds:

13. 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 one or more layers of the organic material layers include the heterocyclic compound of claim 1.

14. The organic light emitting device of claim 13, wherein the organic material layer includes an electron injection layer, an electron transfer layer, or a layer carrying out electron injection and electron transfer at the same time, and the electron injection layer, the electron transfer layer, or the layer carrying out electron injection and electron transfer at the same time includes the heterocyclic compound.

15. The organic light emitting device of claim 13, wherein the organic material layer includes a hole blocking layer, and the hole blocking layer includes the heterocyclic compound.

16. The organic light emitting device of claim 13, wherein the organic material layer includes an electron control layer, and the electron control layer includes the heterocyclic compound.