Charge-transporting compound, charge-transporting material,...

Details Charge-transporting compound, charge-transporting material,... Charge-transporting compound, charge-transporting material,...

2004-10-29

2010-06-15

Gulakowski, Randy (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Nitrogen-containing reactant

C428S690000

Reexamination Certificate

active

07737248

ABSTRACT:
Using a charge transporting organic compound made of a polymer whose polymer main chain has a fluorene derivative, which is substituted with an amino group having an aromatic ring or heterocyclic ring, connected thereto at the 9 position thereof, e.g. a compound represented by the following formula (1), in a charge transporting thin film, the resulting organic EL element ensures low voltage drive, a high luminance, a very long life and no imperfections.

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Tang et al., Appl. Phys. Lett., vol. 51, No. 12, Sep. 21, 1987, pp. 913-915.

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