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 = {2004},
month = {4}
}
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