Abstract: An electronic device, an electronic system, and a control method are provided. The electronic device includes a display, a memory, and a processor. The memory stores an audiovisual module and a control module. The processor receives initial image information from an external electronic device through a bridge device. The processor is coupled to the display and the memory. The processor executes the audiovisual module to transform the initial image information with a first image format into transformed image information with a second image format, which is compatible to the display. The processor controls the display to display according to the transformed image information. The processor executes the control module to receive a control signal for operating the transformed image information, and provide the control signal to the external electronic device through the bridge device.