Electroluminescence light-emitting device with multi-layer light

Details Electroluminescence light-emitting device with multi-layer light Electroluminescence light-emitting device with multi-layer light

1994-12-19

1997-02-18

Arana, Louis M.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, 313509, H01J 162, H05B 3312, H05B 3314

Patent

active

056043988

ABSTRACT:
Disclosed is an electroluminescence light-emitting device for generating an optical wavelength, comprises a substrate; an ITO layer coated on the substrate, at lest two light-emitting layers sequentially formed on the ITO layer and having a different band gap, and a metal electrode formed on an upper light-emitting layer of the at least two light-emitting layers, wherein the ITO layer is used as an anode and the metal electrode is used as a cathode.

REFERENCES:
patent: 3153166 (1964-10-01), Thornton
patent: 3299307 (1967-01-01), Inoue
patent: 4137481 (1979-01-01), Hilsum
patent: 4396864 (1983-08-01), Suntola
patent: 4603280 (1986-07-01), Pankove
patent: 4672265 (1987-06-01), Eguchi
patent: 4689522 (1987-08-01), Robertson
patent: 5382477 (1995-01-01), Saito
patent: 5405710 (1995-04-01), Dodabalapur
Chemical Physics Letters, vol. 200, No. 1.2, Nov. 1992, pp. 46-54, entitled "Electroluminescence from multilayer conjugated polymer devices: spatial control of exciton formation and emissions" by A. R. Brown et al.
Jpn. J. Appl. Phys., vol. 33 (1994), pp. L1228-L1231, Part 2, No. 9A, 1 Sep. 1994, entitled "Novel Optical and Electroluminescent Characteristics in Organic Superlattice Structure Utilizing Cyclopentadiene Derivative and Aromatic Diamine" by Chikayoshi Morishima et al.

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