Video-signal processing apparatus and video display system

摘要

In an apparatus for processing video signals to control a display device that displays a video, a display video signal is generated for each of the colors from received video signals; a delayed display video signal is generated for each display video signal by delaying the display video signal by one field; an afterglow level of at least a first color among the colors is calculated based on the delayed display video signals; a correction signal is generated based on the afterglow level; a display video signal for the first color is selected as the display video signal of the first color when a level of the display video signal of the first color is equal to or higher than the correction signal, and the correction signal is selected when a level of the display video signal of the first color is lower than the correction signal.