Electroluminescence element and electroluminescence panel

Details Electroluminescence element and electroluminescence panel Electroluminescence element and electroluminescence panel

2007-07-24

2007-07-24

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S503000

Reexamination Certificate

active

10897627

ABSTRACT:
In an electroluminescence element, a layered structure is employed for an upper electrode including a first upper conductive layer formed through evaporation, a buffer layer, and a second upper conductive layer formed through sputtering. By interposing the buffer layer between the first and second upper conductive layers, damages to a light emitting element layer formed below the upper electrode and containing an organic material or the like having a low resisting characteristic against sputtering environment can be prevented while a high level of a charge injection efficiency to the light emitting element layer is maintained for charges such as electrons and holes, and, at the same time, a conductive layer can be formed with superior coverage and uniformity, to a sufficient thickness, and with superior productivity. The buffer layer may have a multi-layer structure.

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