Displays

Details Displays Displays

1991-12-04

1994-10-25

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

257 88, 313505, 313509, H05B 3314, H01L 3300

Patent

active

053592603

ABSTRACT:
A solid-state display comprises a glass plate on which is deposited an upper layer of parallel conductive tracks interrupted by recesses containing regions of conductive or semiconductive phosphor. An array of ballistic transistors within a semiconductor layer is in alignment on one side with the phosphor regions and on the other side with lower conductive tracks which extend at right angles to the tracks in the upper layer. When a voltage is applied to one of the tracks in the upper layer which is positive with respect to the voltage applied to one of the lower tracks it causes one of the transistors to emit electrons upwardly into the adjacent phosphor region. This causes fluorescence of the region and the emission of light through the glass plate.

REFERENCES:
patent: 3015747 (1962-01-01), Rosenberg
patent: 3042834 (1962-07-01), Nicoll
patent: 3512041 (1970-05-01), Dalmasso
patent: 4015166 (1977-03-01), Ohshima et al.
patent: 4081716 (1978-03-01), Uemura
patent: 4857161 (1989-08-01), Borel et al.
patent: 4857799 (1989-08-01), Spindt et al.

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