US 2007/0164278 A1 · Organic light emitting device and flat display including the same

Abstract

Provided are an organic light emitting device (OLED) and a flat display including the OLED. The OLED includes an organic layer which includes a pixel electrode, an opposite electrode, and at least an emission layer between the pixel electrode and the opposite electrode, wherein the emission layer includes a long wavelength-blue emission layer emitting blue light having a long wavelength and a short wavelength-blue emission layer emitting blue light having a short wavelength. The long wavelength-blue emission layer is positioned in a location to enhance emission of blue light from the emission layer. The OLED can emit blue light with high efficiency and high brightness.

Claims18

Dependent claims

An organic light emitting device, comprising:

a first electrode comprising a substantially transparent conductor;
a second electrode;
a first blue emission layer interposed between the first and second electrodes, the first blue emission layer comprising a first compound configured to emit blue light having a first maximum emission wavelength;
and
a second blue emission layer interposed between the first blue emission layer and the second electrode, the second blue emission layer comprising a second compound configured to emit blue light having a second maximum emission wavelength, the second maximum emission wavelength being shorter than the first maximum emission wavelength.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/655,590Filed 18 Jan 2007

Priority

KR 10-2006-000541018 Jan 2006

Published

19 Jul 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H10K 50/125
Characterised by the electroluminescent [EL] layers: specially adapted for multicolour light emission, e.g. for emitting white light
H10K 85/342
Transition metal complexes, e.g. Rupolypyridine complexes: comprising iridium
H10K 85/615
Organic compounds having low molecular weight: polycyclic condensed aromatic hydrocarbons, e.g. anthracene
H10K 85/631
Organic compounds having low molecular weight: amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine

Organic light emitting device and flat display including the same

Life of this patent

Organic light emitting device and flat display including the same

Life of this patent

Abstract

Claims18