Organic electroluminescent materials and devices

Patent metadata

Field	Value
Publication number	US-9673401-B2
Application number	US-201313930997-A
Country	US
Kind code	B2
Filing date	Jun 28, 2013
Priority date	Jun 28, 2013
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

The present disclosure generally relates to novel compounds containing carbazole and triazine with different number of phenyl units attached to its core. In particular, the disclosure relates to compositions and/or devices comprising these compounds as hosts for PHOLEDs.

First claim

The invention claimed is:

1. A compound having a structure according to Formula I:

wherein R 1 , R 4 and R 5 are independently selected from group consisting of non-fused aryl, non-fused heteroaryl, and combinations thereof;
wherein L is selected from the group consisting of a bond, non-fused aryl, non-fused heteroaryl, and combinations thereof;
wherein X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , and X 7 are each CR;
wherein Y 1 , Y 2 , and Y 3 are N; and
wherein each R can be same or different, and is independently selected from the group consisting of hydrogen, deuterium, non-fused aryl, non-fused heteroaryl and combinations thereof.

2. The compound of claim 1 , wherein R 1 is selected from the group consisting of phenyl, biphenyl, terphenyl, tetraphenyl, pentaphenyl, pyridine, phenyl pyridine and pyridyl phenyl.

3. The compound of the claim 1 , wherein L is selected from the group consisting of phenyl, pyridyl, biphenyl, terphenyl and a bond.

4. The compound of the claim 1 , wherein R 4 is selected from the group consisting of phenyl, pyridyl, biphenyl, and terphenyl.

5. The compound of the claim 1 , wherein R 5 is selected from the group consisting of phenyl, pyridyl, biphenyl, and terphenyl.

6. The compound of claim 1 , wherein the compound consists of a compound having a structure according to Formula II:

wherein R 2 and R 3 can be same or different, and independently selected from the group consisting of hydrogen, deuterium, non-fused aryl, non-fused heteroaryl and combinations thereof.

7. The compound of claim 6 wherein the compound having a structure according to Formula II is selected from the group consisting of Compound 1 through Compound 602 listed in the table below, wherein Y 1 , R 1 , R 2 , R 3 , R 4 , R 5 and L are as defined and wherein C is Carbon, N is nitrogen, H is hydrogen, A 1 is

Cmpd
Y 1
R 1
R 2
R 3
R 4
R 5
L

1
N
A 1
H
H
A 1
A 1
Bond

2
N
A 2
H
H
A 1
A 1
Bond

3
N
A 3
H
H
A 1
A 1
Bond

4
N
A 4
H
H
A 1
A 1
Bond

5
N
A 5
H
H
A 1
A 1
Bond

6
N
A 6
H
H
A 1
A 1
Bond

7
N
A 7
H
H
A 1
A 1
Bond

8
N
A 1
A 1
H
A 1
A 1
Bond

9
N
A 2
A 1
H
A 1
A 1
Bond

10
N
A 3
A 1
H
A 1
A 1
Bond

11
N
A 4
A 1
H
A 1
A 1
Bond

12
N
A 5
A 1
H
A 1
A 1
Bond

13
N
A 6
A 1
H
A 1
A 1
Bond

14
N
A 7
A 1
H
A 1
A 1
Bond

15
N
A 1
H
A 1
A 1
A 1
Bond

16
N
A 2
H
A 1
A 1
A 1
Bond

17
N
A 3
H
A 1
A 1
A 1
Bond

18
N
A 4
H
A 1
A 1
A 1
Bond

19
N
A 5
H
A 1
A 1
A 1
Bond

20
N
A 6
H
A 1
A 1
A 1
Bond

21
N
A 7
H
A 1
A 1
A 1
Bond

22
N
A 1
A 1
A 1
A 1
A 1
Bond

23
N
A 2
A 1
A 1
A 1
A 1
Bond

24
N

Assignees

• Universal Display Corp

Inventors

• Boudreault Pierre-Luc
• Dyatkin Alexey
• Xia Chuanjun
• Yamamoto Hitoshi

Classifications

• H10K50/181

  Electron blocking layers · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K85/654 Primary

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

• H10K85/6572

  comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole · CPC title

• C07D471/04

  Ortho-condensed systems · CPC title