Patent ID: 6900844

Claim:
A display control method for a video display system that comprises a plurality of video display apparatuses for displaying video signals being supplied as video, the display controlling method including: a step in which a specific video display apparatus out of said plurality of video display apparatuses is selected as a master display apparatus and the other of said plurality of display apparatuses is selected as slave apparatuses; a step in which said specific video display apparatus discriminates video characteristics of said video signals to output identification signals that correspond to said discriminated video characteristics and simultaneously displays said video signals according to display characteristics stored in correspondence to said identification signals; and a step in which said other video display apparatuses than said specific video display apparatus display said video signals according to said display characteristics stored in correspondence to said identification signals, wherein said identification signals include corresponding signals regarding a frequency dividing ratio, a timing of writing into a video memory, a timing of reading from the video memory, a horizontal display width and a vertical display width at the moment of making a display, a horizontal synchronization frequency and a vertical synchronizing frequency of the input signal, polarity information of the vertical and horizontal synchronization signal, and a classification of the interlaced scanning and non-interlaced scanning.