Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof
Abstract
An organic electroluminescent device ("OELD") has a controllable brightness, an improved energy efficiency, and stable optical output at low brightness. The OELD is activated with a series of voltage pulses, each of which has a maximum voltage value that corresponds to the maximum power efficiency when the OELD is activated. The frequency of the pulses, or the duty cycle, or both are chosen to provide the desired average brightness.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174827
- Patent Number(s):
- 6727660
- Application Number:
- 10/400,859
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- DOE Contract Number:
- FC26-00NT40989
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Citation Formats
Heller, Christian Maria. Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof. United States: N. p., 2004.
Web.
Heller, Christian Maria. Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof. United States.
Heller, Christian Maria. Tue .
"Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof". United States. https://www.osti.gov/servlets/purl/1174827.
@article{osti_1174827,
title = {Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof},
author = {Heller, Christian Maria},
abstractNote = {An organic electroluminescent device ("OELD") has a controllable brightness, an improved energy efficiency, and stable optical output at low brightness. The OELD is activated with a series of voltage pulses, each of which has a maximum voltage value that corresponds to the maximum power efficiency when the OELD is activated. The frequency of the pulses, or the duty cycle, or both are chosen to provide the desired average brightness.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 27 00:00:00 EDT 2004},
month = {Tue Apr 27 00:00:00 EDT 2004}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Efficient blue LEDs from a partially conjugated Si-containing PPV copolymer in a double-layer configuration
journal, February 1997
- Garten, Frank; Hilberer, Alain; Cacialli, Franco
- Advanced Materials, Vol. 9, Issue 2
Colorfast Blue-Light-Emitting Random Copolymers Derived from Di-n-hexylfluorene and Anthracene
journal, September 1998
- Klärner, Gerrit; Davey, Mark H.; Chen, Wei-D.
- Advanced Materials, Vol. 10, Issue 13, p. 993-997
Multilayer White Light-Emitting Organic Electroluminescent Device
journal, March 1995
- Kido, J.; Kimura, M.; Nagai, K.
- Science, Vol. 267, Issue 5202
Organic electroluminescent devices based on molecularly doped polymers
journal, August 1992
- Kido, Junji; Kohda, Masafumi; Okuyama, Katsuro
- Applied Physics Letters, Vol. 61, Issue 7
High brightness and efficiency blue light-emitting polymer diodes
journal, August 1998
- Grice, A. W.; Bradley, D. D. C.; Bernius, M. T.
- Applied Physics Letters, Vol. 73, Issue 5
Near-ultraviolet electroluminescence from polysilanes
journal, October 1998
- Suzuki, Hiroyuki; Hoshino, Satoshi; Yuan, Chien-Hua
- Thin Solid Films, Vol. 331, Issue 1-2