Amine-based compound and organic light emitting device comprising same

Patent metadata

Field	Value
Publication number	US-11069858-B2
Application number	US-201716322730-A
Country	US
Kind code	B2
Filing date	Sep 25, 2017
Priority date	Sep 23, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present specification provides a compound of Chemical Formula 1, and an organic light emitting device including the same. The compound of Chemical Formula 1 used in one or more organic material layers of an organic light emitting device provides enhanced efficiency, lowered driving voltage, and increased lifetime of the device.

First claim

The invention claimed is:

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

wherein, in Chemical Formula 1,
R1 to R4 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted thioalkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group;
n1 to n3 are each an integer of 0 to 4;
when n1 to n3 are each 2 or greater, substituents in the parentheses are the same as or different from each other;
n4 is an integer of 0 to 2;
when n4 is 2, substituents in the parentheses are the same as or different from each other;
p1 to p3 are each an integer of 0 to 3;
when p1 to p3 are each 2 or greater, substituents in the parentheses are the same as or different from each other;
L, L1 and L2 are the same as or different from each other, and each independently a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted divalent heterocyclic group;
Ar1 is triphenylene;
Ar2 is hydrogen; deuterium; a substituted or unsubstituted aryl group; a substituted or unsubstituted arylalkyl group; a substituted or unsubstituted arylalkenyl group; or a substituted or unsubstituted heterocyclic group; and
X1 is a substituted or unsubstituted aryl group; a substituted or unsubstituted arylalkyl group; a substituted or unsubstituted arylalkenyl group; or a substituted or unsubstituted heterocyclic group.

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

wherein, in Chemical Formulae 2 to 4,
R1 to R4, X1, L, L1, L2, n1 to n4, p1 to p3, Ar1 and Ar2 have the same definitions as in Chemical Formula 1.

3. The compound of claim 1 , wherein —(L) p1 —N[(L1) p2 Ar1][(L2) p3 Ar2] is represented by the following Chemical Formula 5:

wherein, in Chemical Formula 5,
L, L2, p1, p3 and Ar2 have the same definitions as in Chemical Formula 1.

4. The compound of claim 1 , wherein L is a direct bond or any one selected from the following structures:

wherein, in the structures,
R17 to R19 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group.

5. The compound of claim 1 , wherein X1 is a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group.

6. The compound of claim 1 , wherein X1 is any one selected from the following structures:

wherein, in the structures,
R11 to R13 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or adjacent substituents bond to each other to form a substituted or unsubstituted ring.

7. The compound of claim 1 , wherein Ar2 is any one selected from the following structures:

wherein, in the structures,
R14 to R16 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or adjacent substituents bond to each other to form a substituted or unsubstituted ring.

8. The compound of claim 1 , wherein L1 and L2 are the same as or different from each other, and each independently a direct bond; or any one selected from the following structures:

wherein, in the structures,
R17 to R19 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a cyano group; a silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group.

9. The compound of claim 1 , wherein the compound represented by Chemical Formula 1 is any one selected from the following structures:

Assignees

• Lg Chemical Ltd

Inventors

• Lee Sung Jae
• Ha Jae Seung
• Hong Sung Kil

Classifications

• H10K50/181

  Electron blocking layers · CPC title

• H10K85/633

  comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom · CPC title

• C07C211/61 Primary

  with at least one of the condensed ring systems formed by three or more rings · CPC title

• C07D209/88

  with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system · CPC title

• C07D333/76

  Dibenzothiophenes · CPC title