Long lifetime polymer light-emitting devices with improved luminous efficiency and improved radiance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 1, 2005
Grant Date -
N/A
app pub date -
Jul 17, 2000
filing date -
Jul 19, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The luminous efficiency and radiance of light emitting diodes (LEDs) fabricated from organic emissive materials can be increased by using a multilayer cathode including a low work function layer and a high work function high reflectivity layer, in combination with a high work function, high reflectivitity anode material in the device.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully