Electroluminescent element

Details Electroluminescent element Electroluminescent element

1990-02-20

1992-04-14

Seidleck, James J.

Stock material or miscellaneous articles

Composite

Of metal

25230116, 313504, 428690, 428917, A01J 162

Patent

active

051047403

ABSTRACT:
The electroluminescent element of the present invention comprises a fluorescent substance layer containing a courmarinic or azacoumarinic derivative and a hole transport layer, both made of organic compounds and laminated on top of the other. The both layers are interposed between cathode and anode electrodes. It emits light efficiently at a high luminance upon application of a low voltage between the electrodes.

REFERENCES:
patent: 4720432 (1988-01-01), Van Slyke et al.
patent: 4720436 (1988-01-01), Ohseto et al.
patent: 4769292 (1988-09-01), Tang et al.
patent: 4885211 (1989-12-01), Tang et al.

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