Multicolor display device

Details Multicolor display device Multicolor display device

1986-08-04

1987-08-11

Dixon, Harold

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Plural load devices

250205, 250209, 250552, 315154, 315158, H05B 3702

Patent

active

046864253

ABSTRACT:
A multicolor display device having seven illuminated optically stable states includes three triads of associated electro-optical components. In each triad, a light sensor is electrically coupled with a display light emitting diode and auxiliary light emitting diode. An optical feedback is established in each triad between the auxiliary light emitting diode and the light sensor tending to maintain its associated display light emitting diode either in the illuminated or extinguished condition. Light signals of respectively different colors emitted by three display light emitting diodes are blended to obtain a composite light signal of a color in accordance with the conditions of respective display light emitting diodes.

REFERENCES:
patent: 3210549 (1965-10-01), Van Santen et al.
patent: 3696389 (1972-10-01), Fenner
patent: 3875456 (1975-04-01), Kano et al.
patent: 3911423 (1975-10-01), Arndt et al.
patent: 4300211 (1981-11-01), Hudson
patent: 4329625 (1982-05-01), Nishizawa et al.
patent: 4484105 (1984-11-01), Kriete et al.

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