Electroluminescence element and a light emitting device...

Details Electroluminescence element and a light emitting device... Electroluminescence element and a light emitting device...

2006-05-16

2006-05-16

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S504000

Reexamination Certificate

active

07045955

ABSTRACT:
An EL element which is thicker and lower-voltage drive without doping acceptor or donor than the conventional one. An EL element in which an electroluminescent film103containing an organic compound which can provide electroluminescent, a floating electrode104, an electron transport supporting layer105and a cathode102are in order laminated on an anode101. A film thickness of the electroluminescent film103is on the order of a conventional film thickness (on the order of approximately 100 nm), and the electron transport supporting layer105may also have a film thickness on the order of the electroluminescent film103. The EL element can be driven at lower voltage than the conventional one by introducing a hole blocking material into an electron transport supporting layer.

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