Light emitting material and organic light-emitting device

Details Light emitting material and organic light-emitting device Light emitting material and organic light-emitting device

2008-02-06

2009-12-22

Yamnitzky, Marie R. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C257SE51033, C257SE51044, C252S301350, C526S241000, C526S248000, C526S265000, C528S009000, C528S395000

Reexamination Certificate

active

07635527

ABSTRACT:
A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

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