Mobile terminal and large screen display interaction control method based on thumbnail reconstruction

The invention relates to a mobile terminal and large screen display interaction control method based on thumbnail reconstruction. The method comprises a mobile terminal and a large screen display host, wherein the mobile terminal is connected with the large screen display host through wireless network; the App client software on the mobile terminal is in TCP (transmission control protocol) connection with the large screen display program; the large screen display program generates the layout information of the large screen display regions and the thumbnail of each region, and sends to the App client software; the App client software reconstructs the large screen display frames according to the layout information and the thumbnails; a user inputs gesture and menu interaction information of each region on the mobile terminal, and transmits and applies the information on each region of the large screen display. The mobile terminal provided by the invention can display and control the large screen display frames in real time, which is intuitive and rapid; the user experience is good; through connecting with the large screen through wireless, the large screen can be controlled at any effectively connected position; the characteristics of touch operation of the mobile terminal can be completely used; the operation is more natural and smoother.