IMAGE SIGNAL CORRECTING DEVICE AND IMAGE SIGNAL SEPARATION METHOD AND CALCULATOR SYSTEM USING THEM

摘要

PROBLEM TO BE SOLVED: To improve display quality of a video without affecting a computer image even when the video and the computer image coexist in the same picture. SOLUTION: An image signal correcting device is provided with a video discrimination part 9 discriminating an image digital signal outputted from a display control part 4 between a computer image signal and a video signal and a video correction part 10 performing correction processing for signal separated as the video signal between the display control part 4 incorporated in a computer and a display part 5 of a CRT and an LCD, etc.