Organic electroluminescent devices

Details Organic electroluminescent devices Organic electroluminescent devices

2008-07-22

2008-07-22

Morris, Terrel (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C257SE51049, C585S026000

Reexamination Certificate

active

07402346

ABSTRACT:
An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light-emitting material of Formula Iwherein R1is independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group; R2is independently selected from the group consisting of hydrogen, a hetero atom, and an alkyl group; R3is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group; and, R4is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.

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