Method for driving an active matrix display and active matrix di

Details Method for driving an active matrix display and active matrix di Method for driving an active matrix display and active matrix di

1990-09-25

1993-07-06

Weldon, Ulysses

Communications: electrical

Land vehicle alarms or indicators

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

359 54, G09G 336

Patent

active

052258211

ABSTRACT:
A method for driving an active matrix electro-optical display having pixel electrodes arranged in a matrix with a plurality of first electrodes arranged in rows, through an active ferroelectric layer disposed between the first electrode and the pixel electrode is provided. A second electrode is disposed in a row direction on an opposed substrate with an electro-optical material in the space between the substrates. The method includes the steps of applying a selective voltage V.sub.0 to the first electrode and a data voltage V.sub.1 to the line electrode so that the range of the absolute value .vertline.V.sub.1 .vertline. of the data voltage V.sub.1 is represented by .vertline.V.sub.1 .vertline.<E.sub.c .multidot.d.sub.F (C.sub.LC +C.sub.F)/C.sub.LC in which E.sub.c is defined as the electric field of the active layer, d.sub.F is defined as the thickness of the active layer, C.sub.F is defined as the capacitance of the picture element of the active layer and C.sub.LC is defined as the capacitance of the electro-optical material.

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