Organic element for electroluminescent devices

Details Organic element for electroluminescent devices Organic element for electroluminescent devices

2006-08-01

2006-08-01

Garrett, Dawn (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S098000

Reexamination Certificate

active

07083865

ABSTRACT:
Disclosed is an OLED device comprising a light-emitting layer (LEL) containing a host and a dopant located between a cathode and an anode wherein the emitter is an orange-red light emitting rubrene derivative represented by formula (I):wherein:a) there are identical aromatic groups at the 2- and 8-positions;b) the phenyl rings in the 5- and 11-positions contain only para-substituents identical to the aromatic groups in paragraph a); andc) the phenyl rings in the 6- and 12-positions are substituted or not.

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Co-pending, commonly assigned, concurrently filed, U.S. Appl. No. 10/700,916, titled “Organic Element For Electroluminescent Devices”, of Begley et al.
Co-pending, commonly assigned, concurrently filed, U.S. Appl. No. 10/700,894, titled “Organic Element For Electroluminescent Devices”, of Begley et al.
Co-pending, commonly assigned, concurrently filed, U.S. Appl. No. 10,701,241, titled “Organic Element For Electroluminescent Devices”, of Begley et al.
Zhang Zhi-lin, et al., The effect of rubrene as a dopant on the efficiency and stability of organic thin film electroluminescent devices J. Phys. D: Appl. Phys., 31, 1998, pp. 32-35.
C. H. Chuen, et al., “Highly-bright white organic light-emitting diodes based on a single emission layer”, Applied Physics Letters, vol. 81, No. 24, Dec. 9, 2002, pp. 4499-4501.

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