Patent ID: 8605043

Claim:
A control method, adapted to a touch display system, the touch display system comprising a touch module, a programmable circuit, and a display module, the touch module having a first sense area, the programmable circuit electrically connected between the touch module and the display module for executing the control method and the touch module being electrically connected to a host computer for transmitting data with the host computer, the control method comprising steps of: detecting whether the first sense area is touched or not; displaying a boot image by the display module when the first sense area is touched; generating a second sense area after the boot image is displayed; detecting whether the second sense area is touched or not; and displaying an on-screen display menu by the display module when the second sense area is touched, wherein the on-screen display menu comprises a power item and a plurality of function items; when one of the function items is touched, setting a priority of touching the on-screen display menu to a highest priority setting and stopping data transmission between the touch module and the host computer until exiting the on-screen display menu; and starting a sleep mode by the display module when displaying the boot image by the display module and if the display module does not receive image data from the host computer.