Flat panel display device and method of fabricating the same

Details Flat panel display device and method of fabricating the same Flat panel display device and method of fabricating the same

2006-05-02

2006-05-02

Ho, Tu-Tu (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Organic semiconductor material

C257S059000, C257S072000

Reexamination Certificate

active

07038236

ABSTRACT:
An organic light emitting device, and a method of fabricating the same, has a cathode electrode that can prevent oxygen or moisture from infiltrating. The organic light emitting device of the present invention has a lower electrode, an organic thin film layer and an upper electrode successively formed on the substrate. The upper electrode has at least two-layered thin films having different grain density and grain size. A lower film of the at least two-layered thin films of the upper electrode has a first Al thin film having a lower grain density and larger grain size than an upper of the at least two-layered thin films. The upper film has a second Al thin film having relatively higher grain density and smaller grain size than the first Al thin film.

REFERENCES:
patent: 6402579 (2002-06-01), Pichler et al.
patent: 2002/0008815 (2002-01-01), Hanakawa et al.
patent: 2002/0027414 (2002-03-01), Sekiya et al.
patent: 2005/0003231 (2005-01-01), Suzuki et al.
patent: 04-334895 (1992-11-01), None

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