Terminal device and control method

The invention relates to a terminal device and a control method. The terminal device comprises a first displaying unit, a first communication unit, a touch panel and a first processing unit. When the terminal device enters a control mode, the first processing unit displays a first part of an image/interface of a first video in a first zone of the first displaying unit and the controlled terminal device displays a second video in a second displaying unit of the controlled terminal device. In order to respond to a first control order, the first processing unit controls the first displaying unit to display a second part of the image/interface of the first video in a second zone and sends information relevant to the first control order to the controlled terminal device through the first communication unit. Based on the information relevant to the first control order, the controlled terminal device displays a third part of the image/interface of the first video in a third zone of the second displaying unit of the controlled terminal device. The second part and the third part of the image/interface of the first video form the first part of the image/interface of the first video.