Light emitting device containing phosphorescent complex

Details Light emitting device containing phosphorescent complex Light emitting device containing phosphorescent complex

2007-03-01

2010-06-15

Tarazano, D. Lawrence (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C252S301160, C257S040000, C257S102000, C257SE51044, C546S004000, C546S010000

Reexamination Certificate

active

07736756

ABSTRACT:
An OLED device comprises a cathode, an anode, and has therebetween a light emitting layer comprising a phosphorescent emitter represented by Formula (I):in-line-formulae description="In-line Formulae" end="lead"?LnM  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein each L is a cyclometallated ligand with at least one containing a coumarin group, M is Ir or Pt, and n is 3 when M is Ir and 2 when M is Pt. The invention also comprised the compound of formula (I).

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patent: 01/41512 (2001-06-01), None
Zhang et al. “Free radical reactions for heterocycle synthesis. Part 6: 2-Bromobenzoic acids as building blocks in the construction of nitrogen heterocycles.” Tetrahedron 2003. vol. 59, pp. 3009-3018.
S. Lamansky, et al., “Highly Phosphorescent Bis-Cyclometalated Iridium Complexes: Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes”, J.; Am. Chem. Soc., 2001, 123, pp. 4304-4312.

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