Multiplexed varistor-controlled liquid crystal display

Details Multiplexed varistor-controlled liquid crystal display Multiplexed varistor-controlled liquid crystal display

1981-06-18

1983-09-06

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340783, 340719, 340784, G09G 334

Patent

active

044032170

ABSTRACT:
An improved varistor-controlled multiplexed liquid crystal display of the type having columns of front electrodes and rows of rear electrodes connected in series with combinations of varistor elements and electrical capacitances, has a capacitance of increased magnitude formed in parallel with the capacitance of the liquid crystal layer in each of the multiplicity of the display cells, for reducing capacitive crosstalk between an addressed and unaddressed cell elements of the display. The increased capacitance is provided by auxiliary data electrodes positioned below, and spaced by a thin film dielectric layer from, the reflective rear cell row electrodes of the display, and spaced from the varistor member by at least one thick film dielectric layer. A pair of thick film layers may support the row scan electrodes therebetween, or the scan electrodes may be formed between a single layer and the varistor surface.

REFERENCES:
patent: 4233603 (1980-11-01), Castleberry
patent: 4239346 (1980-12-01), Lloyd

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