Patent ID: 6084563
Filing Date: 2000-07-04
Classification: G09G

Abstract:
A drive method for a liquid crystal device comprising the steps of:(a) applying a scanning signal to each of a plurality of scanning electrodes comprising a selection signal during a selection period and a non-selection signal during a non-selection period; and(b) applying a data signal to each of a plurality of signal electrodes based on display data to be displayed by the liquid crystal device;wherein step (a) further comprises the steps of:(1) grouping the plurality of scanning electrodes into p groups, each group comprising at least i scanning electrodes, wherein p and i are integers of at least two;(2) applying the selection signal substantially simultaneously to the at least i scanning electrodes in one of the p groups and applying the non-selection signal substantially simultaneously to the at least i scanning electrodes in the one of the p groups immediately after applying the selection signal thereto and selecting a level of the selection signal based on an orthogonal function, wherein the selection signal is sequentially applied to succeeding groups of the scanning electrodes, wherein the non-selection signal is sequentially applied to succeeding groups of the scanning electrode groups immediately after applying the selection signal thereto, wherein the scanning signal has N selection periods and N non-selection periods per frame, wherein N is an integer of at least two, and applying the selection signal to each of the scanning electrodes in each of the N selection periods, and wherein the orthogonal function has information for determining a level of the selection signal, andwherein step (b) further comprises the step of:(1) determining the level of the data signal based on a relation between the display data and the level of the selection signal.