Organic optoelectric device and display device

Patent metadata

Field	Value
Publication number	US-10050212-B2
Application number	US-201414302464-A
Country	US
Kind code	B2
Filing date	Jun 12, 2014
Priority date	Oct 11, 2013
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

Disclosed is an organic optoelectric device, including an anode and a cathode facing each other, an emission layer interposed between the anode and the cathode, a hole transport layer interposed between the anode and the emission layer, and a hole transport auxiliary layer interposed between the hole transport layer and the emission layer. The emission layer includes at least one first compound represented by Chemical Formula 1:

The emission layer further includes at least one second compound represented by Chemical Formula 2:

The hole transport auxiliary layer includes a third compound represented by Chemical Formula 2, the third compound being the same as or different from the second compound.

First claim

What is claimed is:

1. An organic optoelectric device, comprising:
an anode and a cathode facing each other,
an emission layer interposed between the anode and the cathode,
a hole transport layer interposed between the anode and the emission layer, and
a hole transport auxiliary layer interposed between the hole transport layer and the emission layer,
the emission layer including at least one first compound represented by Chemical Formula 1:

wherein, in Chemical Formula 1,
Z is independently N or CR a ,
at least one of Z is N,
R 1 to R 10 and R a are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, or a combination thereof,
the total number of 6-membered rings substituted on the triphenylenyl group is less than or equal to 6,
L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted terphenylene group, wherein a substituent of the substituted phenylene group, the substituted biphenylene group, and the substituted terphenylene group is a C1 to C30 alkyl group, a C6 to C30 aryl group, or a cyano group,
n1 to n3 are independently 0 or 1, and
n1+n2+n3≥1;

the emission layer further including at least one second compound represented by Chemical Formula 2:

wherein, in Chemical Formula 2,
Y 1 is a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof,
Ar 1 is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof,
R 11 to R 14 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C50 aryl group, a substituted or unsubstituted C2 to C50 heterocyclic group, or a combination thereof, and
at least one of R 11 to R 14 and Ar 1 includes a substituted or unsubstituted triphenylenyl group or a substituted or unsubstituted carbazolyl group; and

the hole transport auxiliary layer including a third compound represented by Chemical Formula 2, the third compound being the same as or different from the second compound.

2. The organic optoelectric device as claimed in claim 1 , wherein the first compound is represented by Chemical Formula 1-I or Chemical Formula 1-II:

wherein, in Chemical Formula 1-I or 1-II,
Z is independently N or CR a ,
at least one of Z is N,
R 1 to R 10 and R a are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, or a combination thereof,
the total number of 6-membered rings substituted on the triphenylenyl group is less than or equal to 6,
L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted terphenylene group, a substituent of the substituted phenylene group, the substituted biphenylene group, and the substituted terphenylene group is a C1 to C30 alkyl group, a C6 to C30 aryl group, or a cyano group,
n1 to n3 are independently 0 or 1, and
n1+n2+n3≥1.

3. The organic optoelectric device as claimed in claim 1 , wherein L of Chemical Formula 1 is a single bond, a substituted or unsubstituted phenylene having a kink structure, a substituted or unsubstituted biphenylene group having a kink structure, or a substituted or unsubstituted terphenylene group having a kink structure, and a substituent of the substituted phenylene group, the substituted biphenylene group, and the substituted terphenylene group is a C1 to C30 alkyl group, a C6 to C30 aryl group or a cyano group.

4. The organic optoelectric device as claimed in claim 3 , wherein L of Chemical Formula 1 is a single bond or a substituted or unsubstituted group selected from Group 1:

wherein, in the Group 1,
R 15 to R 42 are independently hydrogen, C1 to C10 alkyl group, C6 to C30 aryl group, a cyano group.

5. The organic optoelectric device as claimed in claim 1 , wherein the first compound has at least two kink structures.

6. The organic optoelectric device as claimed in claim 1 , wherein the first compound is a compound selected from Group 2:

Assignees

• Cho Pyeong Seok
• Kang Gi Wook
• Kang Eui Su
• Kim Youn Hwan
• Kim Hun
• Yang Yong Tak
• Oh Jae Jin
• Yu Eun Sun
• Lee Nam Heon
• Lee Sang Shin
• Lee Han Ill
• Cheil Ind Inc

Inventors

• Cho Pyeong-Seok
• Kang Gi-Wook
• Kang Eui-Su
• Kim Youn-Hwan
• Kim Hun
• Yang Yong-Tak
• Oh Jae-Jin
• Yu Eun-Sun
• Lee Nam-Heon
• Lee Sang-Shin
• Lee Han-Ill

Classifications

• C09B57/00 Primary

  Other synthetic dyes of known constitution · CPC title

• H01L51/5012

  Electricity · mapped topic

• H01L51/0073

  Electricity · mapped topic

• H01L51/5016

  Electricity · mapped topic

• H01L51/0054

  Electricity · mapped topic