| 摘要 |
In a display unit, the present invention comprises means (1, 3, 6) for setting a black level in a first display screen (ARA) having a first aspect ratio and a black level in a second display screen (ARN) having a second aspect ratio to a predetermined level each. The darkest signal of a video signal is detected from an image area (ARB) corresponding to the second display screen (ARN), and the darkest signal thus detected is lowered to a predetermined level in an image area (ANB) corresponding to the first display screen (ARA). The capability that the black level lowered video signal on the second display screen will not be lowered can thus be avoided effectively. <IMAGE> |
