Bisanthracene derivatives having solubilizing substituent, and organic electroluminescence device using same

Patent metadata

Field	Value
Publication number	US-12545650-B2
Application number	US-202117790846-A
Country	US
Kind code	B2
Filing date	Jan 8, 2021
Priority date	Jan 9, 2020
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

The present invention is to provide a light emitting material, for an organic EL device, exhibiting higher light emitting efficiency, and particularly, to provide a blue light emitting material,
wherein the light emitting material comprises a compound of the following General Formula (1):

X is an aryl group including a tertiary amine structure, and Y is a phenyl group having an alkyl or aryl substituent at one ortho position.

First claim

The invention claimed is:

1 . A compound of the following General Formula (1):

in General Formula (1), X and Y represent substituents, X and Y are not the same as each other,
X is a substituent of General Formula (2), and Y is a phenyl group having an alkyl or aryl substituent at one ortho position:

in General Formula (2),
R2 to R5 are each independently hydrogen or a substituent optionally independently mono-, di-, tri-, tetra-, or penta-substituted;
R1 and R6 are each independently hydrogen, or a substituent optionally independently mono-, di-, tri-, tetra-, or penta-substituted;
or R1 and R2, and R5 and R6 are each independently bonded with each other, respectively, through a single bond, an alkylene, an arylene, —O—, —S—, SiR11R12, —NR—, or —BR—;
or R3 and R4 are boned with each other through an alkylene, an arylene, —O—, —S—, SiR11R12, —NR—, or —BR—
R11 and R12 are each independently an alkyl group or an aryl group;
R is a hydrogen atom, an alkyl group, or an aryl group;
Ra and Rb are each independently a substituent optionally independently mono-, di-, tri-, tetra-, or penta-substituted, or not present, Rc is a substituent optionally mono-, di-, tri-, or tetra-substituted, or not present;
the substituent is independently an alkyl group or an aryl group; and
* represents a position which is bonded to the anthracene ring on the left side of General Formula (1) at any one of the ortho, meta, or para positions with respect to nitrogen atom of the triphenylamine of General Formula (2).

2 . The compound of claim 1 , wherein Y is an o-biphenyl group.

3 . A light emitting material for an organic electroluminescence device, comprising the compound of claim 1 .

4 . An organic electroluminescence device comprising the compound of claim 1 .

5 . An organic electroluminescence device having a light emitting layer comprising the compound of claim 1 .

6 . The organic electroluminescence device of claim 5 , wherein the device comprises the compound as an emitter in the light emitting layer.

7 . The organic electroluminescence device of claim 6 , wherein the device further comprises an anthracene derivative compound, which is an aromatic hydrocarbon having no amino group, as a host material in the light emitting layer.

8 . The compound of claim 1 , wherein the compound is represented by any one of chemical formulae shown below:

Assignees

• Lg Chemical Ltd

Inventors

• Kim Yongwook
• Lee Jaechol
• Kawamura Hisayuki
• Shiraki Shinji
• Owada Tsukasa
• Arai Ayato
• Sasabe Hisahiro
• Kido Junji

Classifications

• H10K85/658

  Organoboranes · CPC title

• C07F7/0812

  comprising a heterocyclic ring · CPC title

• C07F5/027

  Organoboranes and organoborohydrides · CPC title

• C07D471/04

  Ortho-condensed systems · CPC title

• C07D279/30

  with acyl radicals attached to the ring nitrogen atom · CPC title