Patent ID: 7804497

Claim:
A display system comprising: a first display device comprising a first display panel and a first display driving circuit; a second display device comprising a second display panel and a second display driving circuit; and a host that provides a first video signal for the first display device and a second video signal for the second display device through a first interface, wherein the first display device receives the first and the second video signals from the host, displays a first video image based on the first video signal, and provides the second video signal through a second interface to the second display driving circuit, wherein the second display driving circuit transmits a synchronization signal to the first display device for informing the host of a time point when the second video signal is transmitted to the display driving circuit of the second display panel, and displays a second video image based on the second video signal, and wherein the host receives the synchronization signal from the first display device, and provides the second video signal in response to the synchronization signal.