Compound for organic optoelectronic device, composition for organic optoelectronic device, organic optoelectronic device and display device

Patent metadata

Field	Value
Publication number	US-12557546-B2
Application number	US-202017089995-A
Country	US
Kind code	B2
Filing date	Nov 5, 2020
Priority date	Nov 14, 2019
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

A compound for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device, the compound being represented by Chemical Formula 1:

First claim

What is claimed is:

1 . A composition for an organic optoelectronic device, the composition comprising:
a first compound represented by Chemical Formula 1A; and a second compound represented by Chemical Formula 2-8, the first compound and the second compound being included in a weight ratio of 30:70 to 50:50:

wherein, in Chemical Formula 1A,
X 1 to X 3 are all N,
R 1 to R 4 are independently hydrogen, deuterium, an unsubstituted C1 to C10 alkyl group, or an unsubstituted C6 to C20 aryl group,
Ar 1 to Ar 4 of Chemical Formula 1A are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group, and
at least one of Ar 1 to Ar 4 is a substituted phenyl group represented by Chemical Formula a2 or Chemical Formula a3:

in Chemical Formula a2 and Chemical Formula a3, * is a linking point,

wherein, in Chemical Formula 2-8,
R 5 to R 10 are independently hydrogen, deuterium, or a substituted or unsubstituted C6 to C12 aryl group, and
*-L 2 -Y 1 and *-L 3 -Y 2 are each a moiety represented by D-2 or D-3:

in D-2 and D-3 * is a linking point.

2 . The composition as claimed in claim 1 , wherein:
the first compound
is represented by Chemical Formula 1A-1 or Chemical Formula 1A-4:

in Chemical Formula 1A-1 and Chemical Formula 1A-4, R 1 to R 4 and Ar 1 to Ar 4 are defined the same as those of Chemical Formula 1A.

3 . The composition as claimed in claim 1 , wherein the first compound is a compound of Group 1:

4 . An organic optoelectronic device, comprising:
an anode and a cathode facing each other, and an organic layer between the anode and the cathode, wherein: the organic layer includes a light emitting layer, and the light emitting layer includes the composition for an organic optoelectronic device as claimed in claim 1 .

5 . The organic optoelectronic device as claimed in claim 4 , wherein the light emitting layer further includes a dopant.

6 . A display device comprising the organic optoelectronic device as claimed in claim 4 .

7 . The composition as claimed in claim 1 , wherein the first compound is a compound of Group 1′:

8 . A composition for an organic optoelectronic device, the composition comprising:
a first compound represented by a compound of Group A; and a second compound represented by Chemical Formula 3C, the first compound and the second compound being included in a weight ratio of 30:70 to 50:50:

wherein, in Chemical Formula 3C,
R c1 , R c2 and R 11 to R 14 are independently hydrogen, deuterium, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group, L a1 and L a2 are independently a single bond or a substituted or unsubstituted C6 to C20 arylene group, and
*-L 4 -Y 3 and *-L 5 -Y 4 are each a moiety represented by D-2 or D-3:

in D-2 and D-3 * is a linking point.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Kim Byungku
• Lee Hanill
• Jang Kipo
• Kang Giwook
• Yu Eun Sun
• Lee Sangshin

Classifications

• H10K2101/10

  Triplet emission · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K50/12

  comprising dopants · CPC title

• H10K85/654 Primary

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

• C07D403/10 Primary

  linked by a carbon chain containing aromatic rings · CPC title