Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2005-02-01
2005-02-01
Pham, Long (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257S079000, C257S081000, C257S098000, C257S099000, C438S099000
Reexamination Certificate
active
06849869
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.
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O'Regan Marie B.
Zhang Chi
DuPont Displays, Inc.
Louie Wai-Sing
Pham Long
LandOfFree
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