this invention is directed to improve visual effects on digital display devices that use time and space modulation methods to display grayscale values . a distributed line technique is utilized to provide grayscale capability . the grayscale display is illuminated by energizing pixels of a weighted grid of eight line addresses . the first grid line illuminates pixels based on the first selected bit of the grayscale value for those pixels , the second grid line pixels are illuminated based on the second selected bit of the grayscale value for those pixels , the third grid line pixels are base on the third selected bit of the grayscale value for those pixels , etc . until all pixels for all eight grid lines have been selected . thereafter , a second set of grid lines is accessed during the second addressing period , a third set is accessed during the third addressing period , and so forth until all grid sets have been accessed . there are n grid sets where n is the number of time slots allocated per frame time . the visual grayscale brightness of each pixel is determined by the selection of the grid sets and the time slot allocated for the grid sets . the bit value selection , grid set allocation , and time slots are chosen such that the grayscale values are scattered in time and space so that the perception of visual disturbances and other perceived artifacts are avoided .