Organic electroluminescent device with continuous organic medium

Details Organic electroluminescent device with continuous organic medium Organic electroluminescent device with continuous organic medium

1998-06-01

2000-09-05

Yamnitzky, Marie

Stock material or miscellaneous articles

Composite

Of inorganic material

428917, 313504, 313506, H05B 3314

Patent

active

061140554

ABSTRACT:
An organic EL device includes a cathode, an organic electroluminescent layer and an anode, laminated in sequence. The organic layer is composed of a continuous organic medium A.sub.x B.sub.y, where A and B are components capable of transporting electrons and holes, respectively, x represents the content of the A component with a value ranging from 0 adjacent the anode to 100% adjacent the cathode, and y represents the content of the B component with a value ranging from 0 adjacent the cathode to 100% adjacent the anode. Rubrene or a rubrene derivative of high fluorescent efficiency is incorporated in the organic layer to improve efficiency of the luminescence.

REFERENCES:
patent: 5540999 (1996-07-01), Yamamoto et al.
patent: 5674597 (1997-10-01), Fujii et al.
patent: 5804322 (1998-09-01), Shi et al.
patent: 5925980 (1999-07-01), So et al.

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