US 2024/0407250 A1 · COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENT, METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND ILLUMINATOR

Abstract

An object of the present invention is to provide a composition for an organic electroluminescent element, which is used for forming an emission layer in an organic electroluminescent element by wet-process film formation, and which has favorable stability of liquid physical properties, in particular, favorable surface tension stability of ink. The present invention relates to a composition for an organic electroluminescent element including a functional material, a specific compound, alkylated naphthalene or diphenyl alkane as a first solvent, and at least one of an aromatic ether and an aromatic ester as a second solvent.

Claims14

Dependent claims

A composition for an organic electroluminescent element, comprising:

a functional material,
a compound represented by the following formula (1),
alkylated naphthalene or diphenyl alkane as a first solvent, and
at least one of an aromatic ether and an aromatic ester as a second solvent,
[in the above formula,
a is an integer of 0 to 4;
R1 and R2 each independently represent an alkyl group having 1 to 12 carbons or an alkoxy group having 1 to 12 carbons;
and
in a case where a plurality of R2 are present, the plurality of R2 may be the same as or different from each other.]

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/798,043Filed 8 Aug 2024

Priority

JP 2022-0190889 Feb 2022

Published

5 Dec 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

H10K 85/342
Transition metal complexes, e.g. Rupolypyridine complexes: comprising iridium
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
H10K 50/11
OLEDs or polymer light-emitting diodes [PLED]: characterised by the electroluminescent [EL] layers
H10K 50/12
Characterised by the electroluminescent [EL] layers: comprising dopants

Composition for organic electroluminescent element, method for producing organic electroluminescent element, organic electroluminescent element, display device, and illuminator

Life of this patent

Composition for organic electroluminescent element, method for producing organic electroluminescent element, organic electroluminescent element, display device, and illuminator

Life of this patent

Abstract

Claims14