Patent ID: 7627885

Claim:
An in-vehicle image display system for a vehicle, the image display system comprising: a primary display device configured to include a first image-drawing unit and a first display screen for displaying a first window; a secondary display device configured to include a second image-drawing unit and a second display screen for displaying a second window; and a dedicated line configured to enable the primary display device to dedicatedly communicate with the secondary display device, wherein: when it is requested that the second window displayed in the second display screen be different from the first window displayed in the first display screen, the first window is displayed in the first display screen based on a first image signal, which is generated by the first image-drawing unit, while the second window is displayed in the second display screen based on a second image signal, which is generated by the second image-drawing unit; and when it is requested that the second window displayed in the second display screen be identical to the first window displayed in the first display screen, the first window is displayed in the first display screen based on the first image signal generated by the first image-drawing unit while the second window is displayed in the second display screen based on the same first image signal, which is generated by the first image-drawing unit instead of the second image-drawing unit and then transferred via the dedicated line to the secondary display device.