Organic electroluminescent light emitting devices

Details Organic electroluminescent light emitting devices Organic electroluminescent light emitting devices

1998-05-15

2000-09-12

Patel, Ashok

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313506, 428917, H05B 3326

Patent

active

061182125

ABSTRACT:
An organic EL device of the invention comprises a hole injecting electrode, an electron injecting electrode and at least one organic layer interleaved between them. The electron injecting electrode is a film of an aluminum lithium alloy formed by a sputtering technique and comprising 0.4 to 14 at % of lithium. The electron injecting electrode further includes on a side of the electron injecting electrode that is not opposite to the organic layer a protective electrode comprising at least one of aluminum, aluminum and a transition metal except titanium, titanium, and titanium nitride.

REFERENCES:
patent: 3173050 (1965-03-01), Gurnee
patent: 3382394 (1968-05-01), Mehl
patent: 4207488 (1980-06-01), Aboelfotoh
patent: 4770950 (1988-09-01), Ohmishi
patent: 4885211 (1989-12-01), Tang et al.
patent: 5273474 (1993-12-01), Oshima et al.
patent: 5429884 (1995-07-01), Namiki et al.
patent: 5578864 (1996-11-01), Ochi et al.

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