Memory-equipped monochrome display of the photoconductor-electro

Details Memory-equipped monochrome display of the photoconductor-electro Memory-equipped monochrome display of the photoconductor-electro

1990-02-08

1991-10-08

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313509, 313112, 250213R, H01J 154

Patent

active

050557394

ABSTRACT:
A memory effect, monochromatic display of the photoconductor-electroluminescent type, includes on a substrate an electroluminescent layer and a photoconductor layer in stacked relation. The stack is interposed between two electrode systems used for exciting the electroluminescent layer, the latter having an emission spectrum overlapping the sensitivity spectrum of the photoconductor material. An optical filter is located between the electroluminescent layer and the display observer and permits the passage of that part of emission spectrum of the electroluminescent layer most useful for display purposes while blocking a region of the emission spectrum of the ambient illumination, the sensitivity spectrum of the photoconductor layer then being essentially contained in said region.

REFERENCES:
patent: 3566014 (1971-02-01), Norem
patent: 3648052 (1972-03-01), Nakamura et al.
patent: 3675075 (1972-07-01), Kohashi
patent: 3699374 (1972-10-01), Scholl et al.
patent: 3852798 (1974-12-01), Leabailly et al.
patent: 4808880 (1989-02-01), Thioulouse
patent: 4877995 (1989-10-01), Thioulouse et al.
Electronics, vol. 43, No. 11, 05/25/70, pp. 112-117, New York, U.S.; L. Mirando et al.: "Flat-Screen Television Takes Two Giant Steps Forward", p. 116, colonne de gauche, paragraphe 2-paragraphe 4.

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