Method and circuit for selectively driving capacitive display ce

Details Method and circuit for selectively driving capacitive display ce Method and circuit for selectively driving capacitive display ce

1981-06-29

1984-06-26

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340805, 34082581, 3151693, G09G 304

Patent

active

044569092

ABSTRACT:
A method for driving a thin film EL display device comprising the steps of clamping the Y side scanning electrodes selectively and sequentially to a reference voltage and applying the display voltage selectively from the X side data electrodes. In addition, the non-display voltage which is lower than the display threshold voltage, is applied to the non-selected data electrodes and the non-selected scanning electrodes are floated. This new driving method reduces drive power and widens the device operating voltage range.

REFERENCES:
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patent: 3343128 (1967-09-01), Rogers
patent: 3765011 (1973-10-01), Sawyer et al.
patent: 4152626 (1979-05-01), Hatta
patent: 4349816 (1982-09-01), Miller et al.
DMOS Raster-Scan Plasma Panel Drivers, Oleszek et al., IBM Tech. Discl. Bull., vol. 21, #3, 8/78; pp. 1096-1098.
Cost Reduced Gas Panel Drive System; Martin; IBM Tech. Discl. Bull., vol. 19, #9, 2/77; pp. 3457-3458.

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