Method of controlling a display device and device for performing such a method

摘要

A display control device permits a display screen to display predetermined image information. The display control device comprises: a detecting device (3) which receives a signal having a display adjustment signal superimposed thereon, samples a plurality of portions from the display adjustment signals, and detects optimum timing based on a plurality of sampled values, the display adjustment signal being used for adjusting the timing of display of each pixel of the image information, the display adjustment signal being superimposed upon the signal on a horizontal scanning line in a signal portion corresponding to a region outside the display screen; and an adjusting device (4) which adjusts the timing of display of each pixel in accordance with the detected optimum timing.