Combination matrix array display and memory system

Details Combination matrix array display and memory system Combination matrix array display and memory system

1981-01-12

1984-02-07

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340784, 340799, 340811, G09G 300

Patent

active

044306482

ABSTRACT:
A display device of solid-state matrix type, such as a liquid crystal display device, retains display data for an unlimited period after such data has been written into the display, with no need for periodic re-writing of the display data to compensate for deterioration due to leakage effects. In addition, the display data can be read out again, if required, so that the display device can also be used as a memory. such a display device can also be utilized to perform data input, by writing in of data through application of light to the display surface, such as by using a light pen.

REFERENCES:
patent: 3851185 (1974-11-01), Hatsukano et al.
patent: 3909822 (1975-09-01), Lee et al.
patent: 4110662 (1978-08-01), Greeneich et al.
patent: 4129858 (1978-12-01), Hara
patent: 4190831 (1980-02-01), Stahle et al.
patent: 4228431 (1980-10-01), Barclay
patent: 4236150 (1980-11-01), Chern
patent: 4246578 (1981-01-01), Kawasaki et al.

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