Organic electroluminescent light emitting material and device us

Details Organic electroluminescent light emitting material and device us Organic electroluminescent light emitting material and device us

1996-11-04

1998-05-05

Marquis, Melvyn I.

Stock material or miscellaneous articles

Composite

Of inorganic material

428691, 313503, 313504, 313505, 313506, B32B 900

Patent

active

057471835

ABSTRACT:
An organic electroluminescent display device (10) includes first and second electrode assemblies fabricated on a transparent substrates (12). Disposed between the electrode assemblies are one or more layers of organic electroluminescent light emitting materials (20). The organic electroluminescent light emitting material is preferably characterized by an emitted light having a wavelength of between 4000 .ANG. and 6000 .ANG.. This light emitting material may be comprised of a mixture of a first host emitting material and a second host emitting material, and may further include a dopant so as to improve the emission efficiency of the light emitting material as well as to adjust the emission characteristic to a desired specification.

REFERENCES:
patent: 4539507 (1985-09-01), VanSlyke et al.
patent: 4800136 (1989-01-01), Arakawa et al.
patent: 5126214 (1992-06-01), Tokailin et al.
patent: 5256945 (1993-10-01), Imai et al.
patent: 5443921 (1995-08-01), Hosokawa et al.
patent: 5518824 (1996-05-01), Funhoff et al.

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