Patent ID: 7119772

Claim:
A method of driving a bistable electro-optic display having a plurality of pixels, each of which is capable of displaying at least three gray levels, the method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; storing data representing at least one temporal prior state of each pixel of the display at a predetermined time prior to the initial state; storing data representing at least two gray level prior states of each pixel prior to a change in gray scale level to produce the initial state; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from the look-up table, the output signal being generated dependent upon said at least one temporal prior state, said at least two gray level prior states and said initial state of said one pixel.