| 摘要 |
PROBLEM TO BE SOLVED: To provide a phosphorescence-emitting material which has high luminous efficiency, maintains high luminance, and enables red light emission, and a light-emitting device and a display device which use the phosphorescence-emitting material. SOLUTION: These metal coordinated compounds are specific coordinated compound including, for example, tetrakis(7,8-dihydro-1-aza-benzo[4,5]cyclohepta[1,2,3-de]naphthalene-C<SP>12</SP>,N)(μ-dichloro)diiridium (III), bis(7,8-dihydro-1-aza-[4,5]cyclohepta[1,2,3-de]naphthalene-C<SP>12</SP>,N)(acetylacetonato)iridium (III), and tris(7,8-dihydro-1-aza-benzo[4,5]cyclohepta[1,2,3-de]naphthalene-C<SP>12</SP>,N)iridium (III). COPYRIGHT: (C)2005,JPO&NCIPI
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