Electroluminescence device

Details Electroluminescence device Electroluminescence device

2007-04-03

2007-04-03

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S509000

Reexamination Certificate

active

10763101

ABSTRACT:
An organic EL element has excellent features as compared with other electroluminescent elements, but on the other hand, has a problem that the life of the element is not sufficiently long. In addition, since the organic EL element is expected to be applied to a mobile display and the like, it is also important to improve power efficiency. Hence, an object of the invention is to provide an element structure to realize an improvement in power efficiency and an improvement in the life of the element at the same. In the construction of an organic EL element of the invention, the first electroluminescent film303is sandwiched by the first anode302and a cathode304, and the second electroluminescent film305and the second anode306are laminated over the cathode304. At this time, the first anode302is put into contact with the second anode306to form a parallel circuit to decrease an electric current passing through the respective electroluminescent films.

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