Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Patent
1997-12-11
1999-12-07
Mintel, William
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
257 59, 257 72, 257 88, 257 94, 257 96, 257 97, 257103, H01L 3300
Patent
active
059988053
ABSTRACT:
An active matrix OED array with an improved device cathode includes a plurality of control transistors formed on a semiconductor substrate with insulating material positioned over the control transistors to form a planar surface. A plurality of contact pads are formed on the planar surface and electrically coupled to the control transistors. A thin (5 .ANG. to 20 .ANG.) electron injecting layer of either alkaline metal oxide or alkaline metal fluoride is positioned on each contact pad and organic material is deposited on the electron injecting layer so as to define an organic light emitting device on each contact pad and electrical and light conducting material is positioned over the organic material to define a second terminal for the OEDs.
REFERENCES:
patent: 5625199 (1997-04-01), Baumbach et al.
patent: 5789766 (1998-08-01), Huang et al.
patent: 5804836 (1998-09-01), Heeger et al.
patent: 5889291 (1999-03-01), Koyama et al.
Lee Hsing-Chung
Shi Song Q.
So Franky
Koch William E.
Mintel William
Motorola Inc.
Parsons Eugene A.
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