Picture display and video signal processing circuit

摘要

Picture display device for displaying pictures having a first aspect ratio and pictures having a second aspect ratio on a display screen having the first aspect ratio, comprising a circuit for applying a signal to pixels which are not associated with the second aspect ratio picture when a second aspect ratio picture is being displayed. The picture display device further comprises an adjustable cover for covering not associated pixels when the picture having the second aspect ratio is being displayed and for uncovering these pixels when a picture having the first aspect ratio is being displayed.