Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-08-08
2006-08-08
Xu, Ling (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S704000, C428S917000, C313S504000, C313S506000, C252S301160, C252S301260, C548S528000, C534S015000, C556S032000
Reexamination Certificate
active
07087322
ABSTRACT:
An organic electroluminescence device comprises a cathode, an anode and a layer of an organic thin film comprising one or a plurality of layers and disposed between the cathode and the anode, wherein at least one of the layers in the layer of an organic thin film comprises a laminate of a layer comprising a metal complex having an energy gap of 2.8 eV or greater and a layer of a host material. The organic electroluminescence device exhibits a higher efficiency of light emission and has a longer life than conventional devices while the emitted light has a high luminance.
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Hosokawa et al., “Highly efficient blue electroluminescence from a distyrylarylene emitting layer with a new dopant”, Appl. Phys. Lett. 67 (26), Dec. 1995.
Arakane Takashi
Funahashi Masakazu
Hosokawa Chishio
Sakai Toshio
Yamamoto Hiroshi
Idemitsu Kosan Co., LTD
Xu Ling
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