Complex fluorene-containing compounds for use in OLED devices

Details Complex fluorene-containing compounds for use in OLED devices Complex fluorene-containing compounds for use in OLED devices

2007-10-23

2007-10-23

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C257S102000, C257S103000, C252S301160

Reexamination Certificate

active

11122962

ABSTRACT:
An organic compound comprising a complex fluorene structure represented by the following Formula:wherein:X1, X2, X3, and X4include carbon atoms and at least one nitrogen atom; R1, R2, R3, and R4are substituents each being individually hydrogen, or amino, or alkyl, or alkenyl, or alkynyl, or alkoxy of from 1 to 40 carbon atoms; aryl or substituted aryl of from 6 to 60 carbon atoms; or heteroaryl or substituted heteroaryl of from 4 to 60 carbons; or F, Cl, or Br; or a cyano group; or a nitro group; or R3, or R4or both are groups that form fused aromatic or heteroaromatic rings; or R1and R2together form a cyclic ring having 3 to 20 carbon, nitrogen, sulfur or oxygen atoms; or R1and R2together form a double bond moiety.

REFERENCES:
patent: 6686065 (2004-02-01), Chen
patent: 6849348 (2005-02-01), Zheng et al.
Yang et al, Organic/polymeric electroluminescent devices processed by hybrid ink-jet printing, Journal of Material Science, Mater. Electron, 2000, 11, 89-96.
Bernius et al, Progress with Light-Emitting Polymers, Adv. Mater. 2000, 12, 1737-1750.
Burroughes et al, Light-emitting diodes based on conjugated polymers, Nature 1990, 347, 539-541.

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