Video processing device

A video display system that displays a video, the video display system comprising:

• a liquid crystal display having a liquid crystal that is driven by a frame inversion scheme;
• and
• a video processing device that generates a display video signal to be supplied to the liquid crystal display,
• wherein the video processing device includes
• a control microcomputer that controls a data enable signal such that a display invalid section having a predetermined number of fields is set for an interlace video signal at a predetermined period based on a vertical synchronization signal included in the interlace video signal input from outside, and
• a video signal processor that generates the display video signal by setting the display invalid section for the interlace video signal based on the data enable signal and outputs the display video signal to the liquid crystal display.