Electric field light emitting element

Details Electric field light emitting element Electric field light emitting element

2004-07-26

2010-12-21

Won, Bumsuk (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S503000, C313S504000, C313S509000

Reexamination Certificate

active

07855506

ABSTRACT:
An organic EL element that is an electroluminescence element has at least an organic layer held between a pair of electrodes. At least an electrode made of material having a higher volume resistivity, of the pair of electrodes, is formed in a flat form. The organic layer is provided with a plurality of non-light emitting portions. The non-light emitting portions are provided so that a larger number of non-light emitting portions exist per unit area at a position physically closer to the position of a terminal portion at which the electrode made of material having the higher volume resistivity is connected to an external connection terminal. As a result, the level of current passing per unit area is substantially uniform at each position on the element.

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Office Action (dated Jul. 14, 2009) from Japanese counterpart application No. 2005-514359 (no English translation).

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