Electroluminescent optical devices

Details Electroluminescent optical devices Electroluminescent optical devices

1978-07-18

1979-06-26

Smith, Alfred E.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

365110, H05B 3700, H05B 3900, H05B 4100

Patent

active

041594436

ABSTRACT:
Devices of the nature of magnetic bubble devices, but in which "bits" take the form of light spots, are described. A prototypical device takes the form of an electroluminescent, photoconducting film straddled by orthogonal arrays of insulated strip electrodes forming closely spaced intercept positions so arranged that during operation such intercepts are sequentially biased. A light spot once nucleated--e.g., through a combination of electroinduced and photoinduced luminescence, is stepped by applying bias below nucleation threshold. Devices may serve a variety of memory and/or logic functions.

REFERENCES:
abstract D-8 of program issued to attendees of the 20th Annual Electronic Materials Conference, Jun. 28, 1978.
"IBM Scientists Report Observation of Light Bubbles," Electronics, Jul. 6, 1978, p. 33.
Topics in Applied Physics, vol. 17, Electroluminescence, "Phosphor Films," Chapter 6, pp. 197-210, 1977.

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