Patent ID: 7852413
Filing Date: 2010-12-14
Classification: G09G,H04N

Abstract:
1. An image display apparatus that receives an input of a video signal and displays an image based on the video signal, comprising: a copyguard detecting unit that detects whether or not the video signal is copyguarded; and a brightness adjusting unit that adjusts a brightness of the image on the basis of a detection result obtained by the copyguard detecting unit; wherein the brightness adjusting unit includes an automatic brightness limiter that limits the brightness of the image on the basis of brightness information indicated in the image signal, and switches to enable or disable the brightness limiting by the automatic brightness limiter in response to a detection result obtained by the copyguard detecting unit; the brightness adjusting unit disables the brightness limiting by the automatic brightness limiter when the copyguard detecting unit has detected a copyguard incorporated in the image signal, and enables the brightness limiting by the automatic brightness limiter when the copyguard detecting unit has detected no copyguard incorporated in the image signal, wherein