HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME

• US 20190312211A1
• Filed: 07/11/2017
• Published: 10/10/2019
• Est. Priority Date: 07/11/2016
• Status: Active Grant

• Current Assignee: Lt Materials Co., Ltd.
• Original Assignee: Heesung Material Ltd.
• Inventors: LEE, Yun-Ji, MO, Jun-Tae, JUNG, Yong-Geun, JEONG, Won-Jang, CHOI, Jin-Seok, CHOI, Dae-Hyuk, LEE, Joo-Dong
• Granted Patent: US 11,133,477 B2
• Time in Patent Office: Days
• CPC Class Codes: C07D 221/18 Ring systems of four or more rings
• CPC Class Codes: C07D 401/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 401/14 containing three or more hetero rings
• CPC Class Codes: C07D 403/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 403/14 containing three or more hetero rings
• CPC Class Codes: C07D 405/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 471/04 Ortho-condensed systems
• CPC Class Codes: C07F 9/5765 condensed with carbocyclic rings or carbocyclic ring systems
• CPC Class Codes: C07F 9/65583 each of the hetero rings containing nitrogen as ring hetero atom
• 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 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 50/11 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 50/18 Carrier blocking layers
• CPC Class Codes: H10K 50/19 Tandem OLEDs
• CPC Class Codes: H10K 85/615 : Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
• 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 85/626 : containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• 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 99/00 : Subject matter not provided for in other groups of this subclass

Abstract

The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

Claims

1. A hetero-cyclic compound represented by the following Chemical Formula 1:

2. The hetero-cyclic compound of claim 1, wherein Chemical Formula 1 is represented by any one of the following Chemical Formulae 2 to 7:

3. The hetero-cyclic compound of claim 1, wherein Z1 is selected from the group consisting of hydrogen;

deuterium;

a substituted or unsubstituted C₆ to C₆₀ aryl group;

a substituted or unsubstituted C₂ to C₆₀ heteroaryl group; and

—

P(═

O)RR′

, and R, R′ and

R″

are the same as or different from each other and each independently hydrogen;

deuterium;

—

CN;

a substituted or unsubstituted C₁ to C₆₀ alkyl group;

a substituted or unsubstituted C₃ to C₆₀ cycloalkyl group;

a substituted or unsubstituted C₆ to C₆₀ aryl group;

or a substituted or unsubstituted C₂ to C₆₀ heteroaryl group.

4. The hetero-cyclic compound of claim 1, wherein R1 and R2 bond to each other to form an aromatic hydrocarbon ring, or R3 and R4 bond to each other to form an aromatic hydrocarbon ring, and, among R1 to R4, groups that do not form the aromatic hydrocarbon ring are hydrogen or deuterium, and R5 to R8 are each independently hydrogen or deuterium.

5. The hetero-cyclic compound of claim 1, wherein Chemical Formula 1 is represented by any one of the following compounds:

6. An organic light emitting device comprising:

an anode;

a cathode; and

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

wherein one or more layers of the organic material layers comprise the hetero-cyclic compound of claim 1.

7. The organic light emitting device of claim 6, wherein the organic material layer comprises at least one of a hole blocking layer, an electron injection layer and an electron transfer layer, and at least one of the hole blocking layer, the electron injection layer and the electron transfer layer comprises the hetero-cyclic compound.

8. The organic light emitting device of claim 6, wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the hetero-cyclic compound.

9. The organic light emitting device of claim 6, wherein the organic material layer comprises one or more of a hole injection layer, a hole transfer layer, and a layer carrying out hole injection and hole transfer at the same time, and one of the above-mentioned layers comprises the hetero-cyclic compound.

10. The organic light emitting device of claim 6, wherein the organic material layer comprises a charge generation layer, and the charge generation layer comprises the hetero-cyclic compound.

11. The organic light emitting device of claim 6, comprising:

an anode;

a first stack provided on the anode and comprising a first light emitting layer;

a charge generation layer provided on the first stack;

a second stack provided on the charge generation layer and comprising a second light emitting layer; and

a cathode provided on the second stack.