DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: White light-emitting organic electroluminescent devices

Abstract

A light-emitting device comprises a light-emitting member, which comprises two electrodes, at least two organic electroluminescent ("EL") materials disposed between the electrodes, a charge blocking material disposed between the electrodes, and at least one photoluminescent ("PL") material. The light-emitting member emits electromagnetic ("EM") radiation having a first spectrum in response to a voltage applied across the two electrodes. The PL material absorbs a portion of the EM radiation emitted by the light-emitting member and emits EM radiation having second spectrum different than the first spectrum. Each of the organic EL materials emits EM radiation having a wavelength range selected from the group consisting of blue and red wavelength ranges.

Inventors:
; ;
Issue Date:
Research Org.:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175796
Patent Number(s):
7063900
Application Number:
10/328,263
Assignee:
General Electric Company (Niskayuna, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
FC26-00NT40989
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Shiang, Joseph John, Duggal, Anil Raj, and Parthasarathy, Gautam. White light-emitting organic electroluminescent devices. United States: N. p., 2006. Web.
Shiang, Joseph John, Duggal, Anil Raj, & Parthasarathy, Gautam. White light-emitting organic electroluminescent devices. United States.
Shiang, Joseph John, Duggal, Anil Raj, and Parthasarathy, Gautam. Tue . "White light-emitting organic electroluminescent devices". United States. https://www.osti.gov/servlets/purl/1175796.
@article{osti_1175796,
title = {White light-emitting organic electroluminescent devices},
author = {Shiang, Joseph John and Duggal, Anil Raj and Parthasarathy, Gautam},
abstractNote = {A light-emitting device comprises a light-emitting member, which comprises two electrodes, at least two organic electroluminescent ("EL") materials disposed between the electrodes, a charge blocking material disposed between the electrodes, and at least one photoluminescent ("PL") material. The light-emitting member emits electromagnetic ("EM") radiation having a first spectrum in response to a voltage applied across the two electrodes. The PL material absorbs a portion of the EM radiation emitted by the light-emitting member and emits EM radiation having second spectrum different than the first spectrum. Each of the organic EL materials emits EM radiation having a wavelength range selected from the group consisting of blue and red wavelength ranges.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 20 00:00:00 EDT 2006},
month = {Tue Jun 20 00:00:00 EDT 2006}
}

Works referenced in this record:

Europium complexes as emitters in organic electroluminescent devices
journal, December 1997


Highly efficient polymer light-emitting devices using a phosphorescent sensitizer
journal, August 2002


Oxadiazole-containing material with intense blue phosphorescence emission for organic light-emitting diodes
journal, July 2002


High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence
journal, August 2001


Red organic light emitting device made from triphenylene hexaester and perylene tetraester
journal, May 2001


Electroluminescence mechanisms in organic light emitting devices employing a europium chelate doped in a wide energy gap bipolar conducting host
journal, June 2000


High operational stability of electrophosphorescent devices
journal, July 2002


Synthesis and Properties of Europium Complexes with β -Diketone Ligands for Organic Electroluminescent Devices
journal, September 1998


Effects of singlet and triplet energy transfer to molecular dopants in polymer light-emitting diodes and their usefulness in chromaticity tuning
journal, August 2001


Tris(dibenzoylmethane)(monophenanthroline)europium(III) based red emitting organic light emitting diodes
journal, November 2001


White-Light-Emitting Organic Electroluminescent Device Using Lanthanide Complexes
journal, March 1996


Energy transfer in polymer electrophosphorescent light emitting devices with single and multiple doped luminescent layers
journal, July 2002


Very high-efficiency green organic light-emitting devices based on electrophosphorescence
journal, July 1999


Infrared organic light emitting diodes using neodymium tris -(8-hydroxyquinoline)
journal, July 2000


Near-ultraviolet electroluminescence from polysilanes
journal, October 1998