Patent ID: 6473117
Filing Date: 2002-10-29
Classification: G09G

Abstract:
A driving method for a liquid crystal device of the type comprising: a pair of substrates, a liquid crystal disposed between the substrates so as to form a matrix of pixels arranged in a plurality of rows and a plurality of columns, an electrode matrix for applying voltages to the liquid crystal at respective pixels, and a plurality of active elements each provided to a pixel for supplying a voltage applied to the liquid crystal at the pixel; the driving method comprising driving the liquid crystal device in a succession of frame periods, whereineach frame period is divided into a plurality of sub-frame periods including at least one preceding sub-frame period and a final sub-frame period so that said at least one preceding sub-frame period provides a total period which is shorter than the final sub-frame period, the active elements along the rows of pixels are sequentially selected row by row at respective selection periods in each sub-frame period, and the liquid crystal at each pixel is supplied with a voltage in each preceding sub-frame period which is lower than a voltage applied to the liquid crystal at the pixel in the final sub-frame period.