Organic EL devices

Details Organic EL devices Organic EL devices

2005-05-11

2010-12-21

Wu, David (Department: 1796)

Stock material or miscellaneous articles

Composite

Of inorganic material

C313S504000, C313S506000, C257S102000, C257S103000, C257SE51049

Reexamination Certificate

active

07854998

ABSTRACT:
The present organic EL devices have at least one luminescent layer and a cathode sequentially provided on their anode, which luminescent layer contains an electron-transporting material, a hole-transporting material, and a luminescent dopant. Preferably, an electron-transporting layer is further provided between the luminescent layer and the cathode. According to the present invention, organic EL devices can be provided giving improved whiteness, colour reproducibility, luminescent efficiency, and lifetime compared to conventional ones.

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