Heterocyclic compound and organic light emitting device comprising same

Patent metadata

Field	Value
Publication number	US-11434228-B2
Application number	US-201816650732-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Sep 29, 2017
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

First claim

The invention claimed is:

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

wherein, in Chemical Formula 1,
R 1 is hydrogen; a C1 to C60 alkyl group; a C6 to C60 aryl group; a C2 to C60 heteroaryl group; P(═O)RR′; or SiRR′R″;
Ar is selected from the group consisting of deuterium; a halogen group; —CN; a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group unsubstituted or substituted with a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
R 2 to R 5 , R a and R b are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted alkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted alkynyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted heterocycloalkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group unsubstituted or substituted with a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, or two or more groups adjacent to each other bond to each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring;
wherein R, R′ and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group; and
p and q are an integer of 0 to 5.

2. The heterocyclic compound of claim 1 , wherein the “substituted or unsubstituted” means being substituted with one or more substituents selected from the group consisting of C1 to C60 linear or branched alkyl; C2 to C60 linear or branched alkenyl; C2 to C60 linear or branched alkynyl; C3 to C60 monocyclic or polycyclic cycloalkyl; C2 to C60 monocyclic or polycyclic heterocycloalkyl; C6 to C60 monocyclic or polycyclic aryl; C2 to C60 monocyclic or polycyclic heteroaryl; —SiRR′R″; —P(═O)RR′; C1 to C20 alkylamine; C6 to C60 monocyclic or polycyclic arylamine; and C2 to C60 monocyclic or polycyclic heteroarylamine, or being unsubstituted, or being substituted with a substituent linking two or more substituents selected from among the substituents illustrated above, or being unsubstituted; and
wherein R, R′ and R″ have the same definitions as in Chemical Formula 1.

3. The heterocyclic compound of claim 1 , wherein Ar may be represented by -(L)m-(Z)n;
L is a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group;
Z is deuterium; a substituted or unsubstituted alkyl group; a halogen group; —CN; a substituted or unsubstituted alkyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heteroaryl group; —SiRR′R″; or —P(═O)RR′;
m is an integer of 0 to 4;
n is an integer of 1 to 5; and
r, R′ and R″ have the same definitions as in Chemical Formula 1.

4. The heterocyclic compound of claim 3 , wherein L is a direct bond; a substituted or unsubstituted C6 to C40 arylene group; or a substituted or unsubstituted C2 to C40 heteroarylene group;
wherein Z is a substituted or unsubstituted C6 to C40 aryl group; a substituted or unsubstituted C2 to C40 heteroaryl group; or —P(═O)RR′; and
R, R′ and R″ have the same definitions as in claim 3 .

5. The heterocyclic compound of claim 1 , wherein R 2 to R 5 , R a and R b are hydrogen.

6. The heterocyclic compound of claim 1 , wherein R 1 of Chemical Formula 1 is hydrogen; or a C6 to C40 aryl group.

7. The heterocyclic compound of claim 1 , wherein Chemical Formula 1 is represented by any one of the following compounds:

Assignees

• Lt Materials Co Ltd

Inventors

• Lee Gi-Back
• Park Seong-Jong
• Kim Ji-Young
• Jeong Won-Jang
• Choi Jin-Seok
• Choi Dae-Hyuk
• Lee Joo-Dong

Classifications

• H10K85/6576

  comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene · CPC title

• H10K85/615

  Polycyclic condensed aromatic hydrocarbons, e.g. anthracene · CPC title

• H10K85/624

  containing six or more rings · CPC title

• H10K85/6574

  comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes · CPC title

• H10K85/654

  comprising only nitrogen as heteroatom (H10K85/652 takes precedence) · CPC title