Electroluminescent device

Details Electroluminescent device Electroluminescent device

2004-09-08

2011-11-01

Shosho, Callie (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C252S301160, C252S301270, C257S040000, C257S103000

Reexamination Certificate

active

08048535

ABSTRACT:
An organic electroluminescent device comprising a pair of electrodes and a light emitting layer, a hole transport layer containing a hole transporting material, and an electron transport layer provided between the pair of electrodes wherein, the light emitting layer contains at least two host materials and at least one red phosphorescent material, and the hole transporting material in the hole transport layer has a small ionization potential than the two host materials in the light emitting layer.

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European Search Report in related European Application No. 04773058.5 mailed Jun. 16, 2010.
European Search Report in related European Application No. 04773058.5-2111 mailed Feb. 7, 2011.

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