Mitsubishi Chemical Corporation

Hideji Komatsu

Koichi Ishibashi

Kazuhiro Nagayama

Koichiro Iida

Takashi Oya

Hideki Gorohmaru

Akira Migita

Ishibashi Koichi

Iida Koichiro

The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.

Iridium complex compound, and composition, organic electroluminescent element, display device, and lighting device each containing the compound

The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator. The present invention relates to an iridium complex compound represented by the following formula (1), which contains a phenyl(iso)quinoline or phenylquinazoline ligand and a phenylazole ligand:Ir(L)(L)(L)&#x2003;&#x2003;(1)

Iridium complex compound, process for producing the compound, composition including the compound, organic electroluminescent element, display device, and illuminator

The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.

Iridium complex compound, solution composition containing the compound, organic electroluminescent element, display, and lighting

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Kanagawa, Japan

Hideji Komatsu