Matrix video display system having a speed-dependent filter to enhance the high spatial frequencies and method of operating such a system

摘要

In a matrix video display system for displaying moving images, e.g. TV pictures, and using a time-persistent type of display panel (10), such as an active matrix LC display panel, having a row and column array of picture elements (12) which is driven (15) by addressing the rows in sequence repetitively in successive fields according to an applied video signal, the amount of blur perceived by a viewer when viewing moving images is reduced by processing the video signal to enhance moving components in the display image in accordance with their speed. A speed-dependent high spatial frequency enhancement filter circuit (40) operates on the video signal to provide an enhanced signal which is supplied to the panel (10). The enhancement is such as to compensate for the speed dependent low passing of the eye of a viewer. <IMAGE>