HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

• US 20190326517A1
• Filed: 02/28/2018
• Published: 10/24/2019
• Est. Priority Date: 02/28/2017
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: KOO, Ki Dong, KIM, Kongkyeom, KIM, Dongheon, GEUM, Sujeong
• Granted Patent: US 11,201,293 B2
• Time in Patent Office: Days
• CPC Class Codes: C07D 471/04 Ortho-condensed systems
• CPC Class Codes: C07D 491/20 Spiro-condensed systems
• CPC Class Codes: C07D 491/22 in which the condensed system contains four or more hetero rings
• CPC Class Codes: C07D 498/04 Ortho-condensed systems
• CPC Class Codes: C07D 498/10 Spiro-condensed systems
• CPC Class Codes: C07D 498/22 in which the condensed system contains four or more hetero rings
• CPC Class Codes: C07D 513/04 Ortho-condensed systems
• CPC Class Codes: C07D 513/20 Spiro-condensed systems
• CPC Class Codes: C07F 7/0812 comprising a heterocyclic ring
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1018 Heterocyclic compounds
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 2102/103 comprising indium oxides, e.g. ITO
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/15 Hole transporting layers
• CPC Class Codes: H10K 50/16 Electron transporting layers
• CPC Class Codes: H10K 50/17 Carrier injection layers
• CPC Class Codes: H10K 50/171 Electron injection layers
• CPC Class Codes: H10K 85/40 Organosilicon compounds, e.g. TIPS pentacene
• CPC Class Codes: H10K 85/622 containing four rings, e.g. pyrene
• CPC Class Codes: H10K 85/626 : containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• CPC Class Codes: H10K 85/633 : comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/636 : comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/657 : Polycyclic condensed heteroaromatic hydrocarbons
• CPC Class Codes: H10K 85/6574 : comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes

Abstract

The present specification relates to a heterocyclic compound of Chemical Formula 1, and an organic light emitting device including the same. The heterocyclic compound as a material of an organic material layer of the organic light emitting device provides enhanced efficiency, low driving voltage and enhanced lifetime properties.

Claims

1. A heterocyclic compound represented by the following Chemical Formula 1:

2. The heterocyclic compound of claim 1, wherein A1 and A2 are the same as or different from each other, and each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 carbon atoms;

or a substituted or unsubstituted heteroring having 2 to 30 carbon atoms, provided that one of A1 and A2 is benzene, the other one is a substituted or unsubstituted polycyclic aromatic hydrocarbon ring;

or a substituted or unsubstituted heteroring.

3. The heterocyclic compound of claim 1, wherein A1 and A2 are the same as or different from each other, and each independently one of the following structures:

4. The heterocyclic compound of claim 1, wherein Chemical Formula 1 is represented by any one of the following Chemical Formulae 2 to 5:

5. The heterocyclic compound of claim 1, wherein L101, L102, and L1 to L4 are selected from among a direct bond;

or the following structures;

6. The heterocyclic compound of claim 1, wherein Ar1 to Ar4 are any one selected from among the following structures:

7. The heterocyclic compound of claim 1, wherein Chemical Formula 1 is any one selected from among the following compounds:

8. An organic light emitting device comprising:

an anode;

a cathode; and

one or more organic material layers disposed between the anode and the cathode,

wherein one or more layers of the organic material layers comprise the heterocyclic compound of claim 1.

9. The organic light emitting device of claim 8, wherein the organic material layers comprise a hole injection layer or a hole transfer layer, and the hole injection layer or the hole transfer layer comprises the heterocyclic compound.

10. The organic light emitting device of claim 8, wherein the organic material layers comprise an electron transfer layer or an electron injection layer, and the electron transfer layer or the electron injection layer comprises the heterocyclic compound.

11. The organic light emitting device of claim 8, wherein the organic material layers comprise a light emitting layer, and the light emitting layer comprises the heterocyclic compound.

12. The organic light emitting device of claim 8, wherein the organic material layers comprise a light emitting layer, and the light emitting layer comprises a compound represented by the following Chemical Formula 1A:

13. The organic light emitting device of claim 12, wherein L103 to L106 are the same as or different from each other, and each independently selected from among a direct bond;

or the following structures;

14. The organic light emitting device of claim 12, wherein Ar5 to Ar8 are the same as or different from each other, and each independently selected from among hydrogen;

or the following structures;

15. The organic light emitting device of claim 8, wherein the organic material layers comprise a light emitting layer, and the light emitting layer comprises a compound represented by the following Chemical Formula 1B:

16. The organic light emitting device of claim 15, wherein L107 to L109 are the same as or different from each other, and each independently selected from among a direct bond;

or the following structures;

17. The organic light emitting device of claim 15, wherein Ar9 to Ar11 are the same as or different from each other, and each independently selected from among hydrogen;

or the following structures;