US 6,805,976 B2 · Organic electroluminescent device and preparation thereof

Abstract

In the organic electroluminescence (EL) device containing a bis-condensed derivative of 4-(dicyanomethylene)-2-methyl-6-(para-(dimethylaminostyryl)-4H-pyran, and the preparation thereof, the inventive organic electroluminescence device has a high luminescent efficiency and color coordinates based on a high purity, and is further simple in a synthesis and is prominent in a thermal stability, thereby providing great merits to a mass production of the organic electroluminescence device.

Claims2

Dependent claims

An organic electroluminescence device, comprising an anode and a cathode, and at least one organic luminescent medium layer containing a compound of a following chemical formula 8 as:

wherein X is O, S, CH2 or NR, where R is a C1-C10 lower alkyl group;
Y1 and Y2 individually indicate H or OH;
and m and n individually represent an integer between 1 and 20.

Dependencies are inferred from the claim text.

Facts

Application

10/033,445Filed 28 Dec 2001

Priority

KR 2000-8712130 Dec 2000

Published

US 2002/0086181 A14 Jul 2002

Granted

19 Oct 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
H10K 85/611
Organic compounds having low molecular weight: charge transfer complexes
H10K 85/653
Aromatic compounds comprising a hetero atom: comprising only oxygen as heteroatom
H10K 50/11
OLEDs or polymer light-emitting diodes [PLED]: characterised by the electroluminescent [EL] layers

Organic electroluminescent device and preparation thereof

Life of this patent

Organic electroluminescent device and preparation thereof

Life of this patent

Abstract

Claims2