Organic thin film light-emitting device having second electrodes

Details Organic thin film light-emitting device having second electrodes Organic thin film light-emitting device having second electrodes

1997-09-26

1999-04-20

Patel, Vip

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313500, 313505, 313512, M01J 162

Patent

active

058960066

ABSTRACT:
Metal electrodes (cathode) are made from a plurality of materials wherein they are not simply superposed one another along the sectional direction, but the metal electrodes (cathode) are in contact with an organic thin film in such that they exhibit a difference in magnitude of work functions dependent upon their disposed positions in the plane. More specifically, a local metal electrode being in contact with the organic thin film inside a light-emitting device in the plane is formed from a material having a small work function, while the peripheral metal electrode which encloses the local metal electrode, wiring sections other than the light-emitting device and the like are formed from materials each having a lager work function than that of the local metal electrode.

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