Light emitting device

Details Light emitting device Light emitting device

2005-02-23

2009-11-17

Yamnitzky, Marie R. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C257SE51043, C257SE51044

Reexamination Certificate

active

07618717

ABSTRACT:
To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, which can be effectively utilized for surface light sources such as full color displays, backlights, and illuminating light sources and light source arrays such as printers, the organic electroluminescent device includes at least one organic compound layer containing a light emitting layer between a pair of electrodes, wherein the light emitting layer contains a host material and a phosphorescent material; the host material is a five-coordinate metal complex; and the phosphorescent material is at least one Ir complex having a specific partial structure.

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Japanese Journal of Applied Physics, 1999, vol. 38, “High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center”, Tetsuo Tsutsui et al., p. L1502-L1504.

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