Video transmission method with adaptive adjustment bandwidth and system thereof

A video transmission system with an adaptive adjustment bandwidth, comprising:

• at least one display device, having a first display timing setting parameter;
• a conversion device, electrically connected to the at least one display device to obtain the first display timing setting parameter of the at least one display device, wherein the conversion device calculates a total transmission bandwidth of the at least one display device according to the first display timing setting parameter, and compares the total transmission bandwidth with a maximum transmission bandwidth, and when the total transmission bandwidth is greater than the maximum transmission bandwidth, a second display timing setting parameter with a lower bandwidth is generated corresponding to the first display timing setting parameter;
• and
• a video source, electrically connected to the conversion device, wherein the maximum transmission bandwidth exists between the video source and the conversion device, the video source transmits a video signal conforming to the second display timing setting parameter to the conversion device according to the second display timing setting parameter, and the conversion device converts the second display timing setting parameter of the video signal back to the first display timing setting parameter, and transmits a video signal conforming to the first display timing setting parameter to the corresponding display device.