NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME

• US 20200131112A1
• Filed: 04/11/2018
• Published: 04/30/2020
• Est. Priority Date: 05/22/2017
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: CHA, Yong Bum, LEE, Sung Jae, KIM, Yeon Hwan, JEON, Sang Young, HAN, Su Jin
• Granted Patent: US 11,459,290 B2
• Time in Patent Office: Days
• CPC Class Codes: C07C 211/54 having amino groups bound to two or three six-membered aromatic rings
• CPC Class Codes: C07C 211/58 Naphthylamines; N-substituted derivatives thereof
• CPC Class Codes: C07C 211/61 with at least one of the condensed ring systems formed by three or more rings
• CPC Class Codes: C07C 255/50 to carbon atoms of non-condensed six-membered aromatic rings
• CPC Class Codes: C07C 2603/16 Benz[e]indenes; Hydrogenated benz[e]indenes
• CPC Class Codes: C07C 2603/66 containing five-membered rings
• CPC Class Codes: C07C 2603/86 containing four rings
• CPC Class Codes: C07C 2603/90 containing more than four rings
• CPC Class Codes: C07D 209/82 Carbazoles; Hydrogenated carbazoles
• CPC Class Codes: C07D 209/86 with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
• CPC Class Codes: C07D 307/91 Dibenzofurans; Hydrogenated dibenzofurans
• CPC Class Codes: C07D 333/76 Dibenzothiophenes
• CPC Class Codes: C07D 407/12 linked by a chain containing hetero atoms as chain links
• CPC Class Codes: C07D 409/12 linked by a chain containing hetero atoms as chain links
• CPC Class Codes: C07F 7/0805 comprising only Si, C or H atoms
• CPC Class Codes: C07F 7/081 comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
• CPC Class Codes: C07F 7/0812 comprising a heterocyclic ring
• CPC Class Codes: C07F 7/10 containing nitrogen having a Si-N linkage
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: H10K 50/00 Organic light-emitting devices integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36
• CPC Class Codes: H10K 50/15 : Hole transporting layers
• CPC Class Codes: H10K 50/171 : Electron injection layers
• CPC Class Codes: H10K 50/18 : Carrier blocking layers
• CPC Class Codes: H10K 50/181 : Electron blocking 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 85/624 : containing six or more rings
• CPC Class Codes: H10K 85/633 : comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• 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
• CPC Class Codes: H10K 99/00 : Subject matter not provided for in other groups of this subclass

Abstract

The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Claims

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

2. The compound of claim 1, wherein

the compound represented by Chemical Formula 1 is represented by the following Chemical Formulas 1-1, 1-2, or 1-3:

3. The compound of claim 1, wherein

L₁ and L₂ are each independently a bond, phenylene, biphenyldiyl, terphenyldiyl, quarterphenyldiyl, naphthalenediyl, anthracenediyl, dimethylfluorenediyl, phenanthrendiyl, pyrenediyl, or triphenylenediyl.

4. The compound of claim 1, wherein

L₁ is a bond, and

L₂ is a bond, or phenylene.

5. The compound of claim 1, wherein

Ar₁ and Ar₂ are each independently phenyl unsubstituted or substituted with any one substituent selected from the group consisting of C_1-4 alkyl, halogen, cyano, and tri(C_1-4 alkyl)silyl;

biphenylyl;

terphenylyl;

quaterphenylyl;

naphthyl;

anthracenyl;

phenanthrenyl;

triphenylenyl;

dimethylfluorenyl;

diphenylfluorenyl;

dibenzofuranyl;

or dibenzothiophenyl.

6. The compound of claim 1, wherein the compound represented by the Chemical Formula 1 is any one selected from the group consisting of:

7. An organic light emitting device comprising a first electrode;

a second electrode provided to face the first electrode; and

at least one layer of organic material layers provided between the first electrode and the second electrode, wherein the at least one layer of the organic material layers comprises the compound according to claim 1.

8. The organic light emitting device of claim 7, wherein the at least one layer of the organic material layers comprises a hole injection layer, wherein the hole injection layer comprises the compound.

9. The organic light emitting device of claim 7, wherein the at least one layer of the organic material layers comprises a hole transport layer, wherein the hole transport layer comprises the compound.

10. The organic light emitting device of claim 7, wherein the at least one layer of the organic material layers comprises an electron blocking layer, wherein the electron blocking layer comprises the compound.