Organic electroluminescent compounds and an organic electroluminescent device comprising the same

Patent metadata

Field	Value
Publication number	US-10633583-B2
Application number	US-201515518276-A
Country	US
Kind code	B2
Filing date	Oct 22, 2015
Priority date	Oct 23, 2014
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

The present disclosure relates to novel organic electroluminescent compounds and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, the organic electroluminescent device may improve driving lifespan while maintaining equal or greater efficiency compared to conventional devices.

First claim

The invention claimed is:

1. An organic electroluminescent compound represented by formula 1:

wherein
Ar1 represents a substituted phenyl, or a substituted or unsubstituted (C10-C30)aryl;
L represents a phenylene;
R1 represents hydrogen, deuterium, a halogen, a cyano, a substituted or unsubstituted (C1-C30)alkyl, or a substituted or unsubstituted (C6-C30)aryl;
a represents an integer of 0 to 4; where a represents an integer of 2 or more, each of R1 may be the same or different.

2. The organic electroluminescent compound according to claim 1 ,
wherein Ar1 represents a substituted phenyl, or a substituted or unsubstituted (C10-C15)aryl;
L represents a phenlylene;
R1 represents hydrogen, a substituted or unsubstituted (C1-C10)alkyl, or a substituted or unsubstituted (C6-C15)aryl.

3. The organic electroluminescent compound according to claim 1 ,
wherein Ar1 represents (C10-C15)aryl unsubstituted or substituted with a (C1-C10)alkyl, a halogen, a cyano or deuterium; L represents a phenlylene;
R1 represents hydrogen, or an unsubstituted (C6-C15)aryl.

4. The organic electroluminescent compound according to claim 1 ,
wherein the substituents of the substituted alkyl, the substituted phenyl or the substituted aryl, each independently, are at least one selected from the group consisting of deuterium, a halogen, a cyano, a carboxyl, a nitro, a hydroxyl, a (C1-C30)alkyl, a halo(C1-C30)alkyl, a (C2-C30)alkenyl, a (C2-C30)alkynyl, a (C1-C30)alkoxy, a (C1-C30)alkylthio, a (C3-C30)cycloalkyl, a (C3-C30)cycloalkenyl, a (3- to 7-membered)heterocycloalkyl, a (C6-C30)aryloxy, a (C6-C30)arylthio, a (3- to 30-membered)heteroaryl unsubstituted or substituted with a (C6-C30)aryl, a (C6-C30)aryl unsubstituted or substituted with a (3- to 30-membered)heteroaryl, a tri(C1-C30)alkylsilyl, a tri(C6-C30)arylsilyl, a di(C1-C30)alkyl(C6-C30)arylsilyl, a (C1-C30)alkyldi(C6-C30)arylsilyl, an amino, a mono- or di-(C1-C30)alkylamino, a mono- or di-(C6-C30)arylamino, a (C1-C30)alkyl(C6-C30)arylamino, a (C1-C30)alkylcarbonyl, a (C1-C30)alkoxycarbonyl, a (C6-C30)arylcarbonyl, a di(C6-C30)arylboronyl, a di(C1-C30)alkylboronyl, a (C1-C30)alkyl(C6-C30)arylboronyl, a (C6-C30)aryl(C1-C30)alkyl and a (C1-C30)alkyl(C6-C30)aryl.

5. The organic electroluminescent compound according to claim 1 ,
wherein the compound represented by formula 1 is selected from the group consisting of:

6. An organic electroluminescent device comprising the compound according to claim 1 .

Assignees

• Rohm & Haas Elect Materials Korea Ltd

Inventors

• Lee Su-Hyun
• Ahn Hee-Choon
• Lim Young-Mook
• Kim Bitnari
• Lee Tae-Jin

Classifications

• C09K2211/1092

  containing sulfur as the only heteroatom · CPC title

• C09K2211/1037

  with sulfur · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• C07D209/86

  with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system · CPC title

• C09K2211/1044

  containing two nitrogen atoms as heteroatoms · CPC title