Electroluminescence element

Details Electroluminescence element Electroluminescence element

1988-08-26

1991-03-26

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313114, 313512, 427 66, H05B 3302, H05B 3322

Patent

active

050032216

ABSTRACT:
In an EL element of this invention, a thin film layer is formed between a transparent substrate and a layer formed adjacent to the transparent substrate, and the refractive index of the thin film layer is changed to be approximated to those of these layers toward the interfaces between the thin film layer and the corresponding layers, so that a difference in refractive index at these interfaces is minimized. The thin film layer may be formed between at least two adjacent layers formed on the transparent substrate.

REFERENCES:
patent: 3854070 (1974-12-01), Vlasenko et al.
patent: 4590128 (1986-05-01), Kawai
patent: 4670355 (1987-06-01), Matsudaira

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