Electroluminescent (EL) devices

Details Electroluminescent (EL) devices Electroluminescent (EL) devices

1998-10-01

2000-05-02

Nold, Charles

Stock material or miscellaneous articles

Composite

Of inorganic material

428691, 428917, 313504, 313505, 313506, 313507, 313508, 313509, H05B 3314

Patent

active

060570482

ABSTRACT:
An electroluminescent device comprised of an anode, a hole transporting layer, a light emitting layer, and a cathode, wherein said light emitting layer contains a component of the formula ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, and Ar.sup.4 are each independently aryl or optionally aliphatic; R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, aliphatic, halogen, and cyano; L is a suitable linking group; and n is a number of from 0 to about 3.

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patent: 5429884 (1995-07-01), Namiki et al.
patent: 5516577 (1996-05-01), Matsuura et al.
"Aromatic Polyethers with 1,3,5-Triazine Units as Hole Blocking/Electron Transport Materials in LEDs", Fink et al., Macromol. Symp., 125, 151-155 (1997).

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