Video signal conversion device, video signal conversion method and video display device

摘要

A video signal conversion device performs the process of: selecting a selected video signal out of two or more video signals input; recognizing the signal type of the selected video signal; converting, in accordance with the result of recognition, the selected video signal into a display signal format suitable for a display section and supplying it to the display section; selecting a target video signal from a group of unselected video signals not including the selected video signal, and recognizing the signal type of the target video signal; generating a piece of video information from the result of recognition and storing the piece of video information in a storage section; and reading out, when accepting a switching instruction that instructs to select another video signal as a selected video signal, a piece of video information corresponding to it from the storage section and converting it into the format.