Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2005-07-26
2005-07-26
Crane, Sara (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257S103000, C313S504000
Reexamination Certificate
active
06921915
ABSTRACT:
An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below:in-line-formulae description="In-line Formulae" end="lead"?MLmL′n (1),in-line-formulae description="In-line Formulae" end="tail"?wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML′nis represented by formula (3) or (4) shown below: at least one of the optional substituent(s) of the cyclic groups, and the cyclic groups CyC1and CyC2 include an aromatic group capable of having a substituent represented by the following formula (5): The metal coordination compound having the aromatic group is effective in providing high-efficiency luminescence and long-term high luminance.
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Furugori Manabu
Kamatani Jun
Miura Seishi
Moriyama Takashi
Okada Shinjiro
Canon Kabushiki Kaisha
Crane Sara
Fitzpatrick ,Cella, Harper & Scinto
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