Organic electroluminescent device with improved long-term...

Details Organic electroluminescent device with improved long-term... Organic electroluminescent device with improved long-term...

2007-10-23

2007-10-23

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S704000, C428S917000, C313S504000, C313S506000

Reexamination Certificate

active

10648297

ABSTRACT:
An organic electroluminescent device with improved long-term stability is disclosed, comprising either a dual layer of a layer I and a layer II or a mixture of the two layers between an EL multilayer and a second electrode, the layer II being made of at least one alkali metal, alkaline earth metal, or compound thereof, the layer I being formed of at least one material selected from those having chemical formula I and chemical formula II as shown below.

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