Patent ID: 6144373
Filing Date: 2000-11-07
Classification: G09G

Abstract:
A method of driving a picture display device having an N number (N is an integer of not less than 2) of scanning electrodes and a plurality of data electrodes and being capable of optically responding to an effective value of a voltage applied to a pixel, which comprises:dividing the scanning electrodes into an M number of subgroups each comprising L rows; andapplying voltages based on signals formed by expanding time-sequentially column vectors of an orthogonal matrix (A) having L rows to the scanning electrode in each of the subgroups in order to select each of the subgroups together;changing, every time when a selection pulse is applied, the subgroups to which the selection pulse is applied, whereinL is 8 or less and N is 200 or more;the polarities of scanning voltages and data voltages are inverted with a periodicity of S times (S is a natural number) of a selection pulse width; andS is so determined that when an integer portion in the quotient of M/S is an even number, a remainder b satisfies S/b<12, and when an integer portion in the quotient of M/S is an odd number, a remainder b satisfies S/(S-b)<12.