Organic electroluminescent materials and devices

Patent metadata

Field	Value
Publication number	US-10790455-B2
Application number	US-201815945095-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	May 18, 2017
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

The present invention includes novel compounds containing heterocycles or azaheterocycles and hexaphenylbenzene or azahexaphenylbenzene. These compounds are useful as host materials for phosphorescent electroluminescent devices.

First claim

I claim:

1. A compound of Formula I:

wherein at least four of A to F are each independently a structure of Formula II;

wherein each of X 1 to X 5 is independently selected from the group consisting of N and CR 1 ;
wherein at least one of X 1 to X 5 in at least one of A to F is CR 1 ;
wherein any of A to F that are not a structure of Formula II are hydrogen or deuterium;
wherein each R 1 is independently selected from the group consisting of hydrogen, deuterium, halogen, alkyl, deuteroalkyl, cycloalkyl, deuterocycloalkyl, heteroalkyl, deuteroheteroalkyl, arylalkyl, deuteroarylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, pyridine, pyrimidine, pyrazine, triazine, nitrile, benzonitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and
wherein at least one of R 1 comprises a chemical group selected from the group consisting of

and combinations thereof.

2. The compound of claim 1 , wherein each R 1 independently selected from the group consisting of hydrogen, deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, and combinations thereof.

3. The compound of claim 1 , wherein each of A to F independently comprises a structure of Formula II.

4. The compound of claim 1 , wherein only one of A to F is hydrogen or deuterium.

5. The compound of claim 1 , wherein A and D are hydrogen or deuterium, and B, C, E, and F each independently comprise a compound of Formula II.

6. The compound of claim 1 , wherein A and C are hydrogen or deuterium, and B, D, E, and F each independently comprise a compound of Formula II.

7. The compound of claim 1 , wherein A and B are hydrogen or deuterium, and C, D, E, and F each independently comprise a compound of Formula II.

8. The compound of claim 1 , wherein at least one of X 1 to X 4 in at least one of A to F is N.

9. The compound of claim 1 , wherein at least two of X 1 to X 4 in at least one of A to F is N.

10. The compound of claim 1 , wherein at least three of X 1 to X 4 in at least one of A to F is N.

11. The compound of claim 1 , wherein the compound is selected from the group consisting of:

Assignees

• Universal Display Corp

Inventors

• Wolohan Peter

Classifications

• H10K85/6572

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

• C07B59/002 Primary

  Heterocyclic compounds · CPC title

• C07D471/14

  Ortho-condensed systems · CPC title

• C07D493/10

  Spiro-condensed systems · CPC title

• C07D498/14

  Ortho-condensed systems · CPC title