Organic electroluminescent device and manufacturing method...

Details Organic electroluminescent device and manufacturing method... Organic electroluminescent device and manufacturing method...

2005-02-08

2005-02-08

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S498000, C313S504000, C313S506000, C313S311000, C428S690000

Reexamination Certificate

active

06853130

ABSTRACT:
An organic electroluminescent device includes an anode, a light-emitting layer, and a cathode, which has a structure formed by sequentially laminating, from the light-emitting layer side, a first cathode formed of a material having a work function of 3.0 eV or less, and a second cathode, formed of a material having a work function higher than that of the first cathode, so that the total thickness of the first and the second cathodes is 100 angstroms or less. These elements are stacked on a substrate, and light is emitted to an exterior of the device via at least the cathode.

REFERENCES:
patent: 5739545 (1998-04-01), Guha et al.
patent: 6023073 (2000-02-01), Strite
patent: 6252253 (2001-06-01), Bao et al.
Gu, G. et al., “Transparent organic light emitting devices”,Appl. Phys. Lett., vol. 68, No. 19, May 6, 1996, pp. 2606-2608.

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