Driver circuit for liquid crystal display using insulated gate F

Details Driver circuit for liquid crystal display using insulated gate F Driver circuit for liquid crystal display using insulated gate F

1975-07-09

1976-10-26

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307205, 307209, 307DIG1, 340336, 350160LC, H03K 3353, G08B 536, G02F 113, H03K 1908

Patent

active

039886166

ABSTRACT:
A driver circuit comprises an output circuit having a depletion type MOSFET and an enhancement type MOSFET connected in series with the depletion type FET. A voltage V1 is supplied to the drain of the depletion type FET and a voltage V2 is supplied to the source of the enhancement type FET, wherein .vertline.V1.vertline. > .vertline.V2.vertline. > .vertline.V th D.vertline., VthD being the threshold voltage of the depletion type MOSFET. A control signal is supplied directly to the gate of the enhancement type FET and, through an inverter, to the gate of the depletion type FET. As a result, a push-pull driver circuit using E/D MOSFETs is obtained.

REFERENCES:
patent: 3775693 (1973-11-01), Proebsting
patent: 3896430 (1975-07-01), Hatsukano

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