Electroluminescent device

Details Electroluminescent device Electroluminescent device

1987-03-03

1988-02-16

Swisher, Nancy A. B.

Stock material or miscellaneous articles

Composite

Of inorganic material

428691, 428917, 313502, 313503, 313504, H01L 2928, H01J 162

Patent

active

047255137

ABSTRACT:
An electroluminescent device comprising a luminescent layer is provided. The luminescent layer comprises a mixed monomolecular film of at least one electroluminescent organic compound and at least one organic compound which is different in electro-negativity from said organic compound or a built-up film thereof.
The luminescent layer may be of a double-layer structure wherein a first layer of the luminescent layer comprises a mixed monomolecular film of an electroluminescent organic compound which is electron-acceptable relative to a second layer of the luminescent layer and an organic compound which is electron-acceptable relative to said compound or a built-up film thereof, and the second layer comprises a mixed monomolecular film of an electroluminescent organic compound which is electron-donative relative to the first layer and an organic compound which is electron-donative relative to said compound or a built-up film thereof.

REFERENCES:
patent: 3173050 (1965-03-01), Gurnee
patent: 3382394 (1968-05-01), Mehl
patent: 3621321 (1971-11-01), Williams et al.
patent: 3710167 (1973-01-01), Dresner et al.
patent: 3995299 (1976-11-01), Partridge
patent: 4356429 (1982-10-01), Tang
patent: 4539507 (1985-09-01), Van Slyke et al.

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