Patent ID: 6744418
Filing Date: 2004-06-01
Classification: G09G

Abstract:
A cholesteric liquid crystal display comprising:a cholesteric liquid crystal display element forming pixels at intersection portions of scan-electrodes of a scan-electrode group and data-electrodes of a data-electrode group; and a drive circuit that comprises an orthogonal function generator and that sequentially selects scan-electrodes of the scan-electrode group as a block composed of plural scan-electrodes, simultaneously applies corresponding coded drive voltages to the plural scan-electrodes, respectively, in the block in a selection time, and applies corresponding coded data-voltages to the data-electrodes of the data-electrode group, respectively, synchronously with the drive voltages; wherein a response time for a liquid crystal to undergo a transformation when a voltage applied is lower than or equal to the selection time; and the response time is greater than an orthogonal cycle.