By using Component Video Cables, you bypass the TV?s Y/C separator and Color Decoder, routing the color (Y, Cr, Cb ) information directly into the TV's matrix decoder. By sending the pure DVD component video signal directly to a component video input-equipped display device, the DVD signal forgoes the extra processing that normally would degrade the image. The result is a vastly increased image quality, with incredibly lifelike colors and crisp detail.
Usually the component video cable is for DVD player/recorder which support PROGESSIVE SCAN mode or HIGH-DEFINITION TV viewing.