The present application discloses methods and devices for data transfer and particularly data transfer between mobile terminals and a display device. The display device may connect to a uniquely identified server based on a device identifier corresponding to the display device. In addition, the display device may connect to the server through a default connection setup embedded in the device identifier. Mobile terminals may be searched and identified by terminal identifiers so that the display device may establish communication channels with the mobile terminals. After adding the mobile terminals to the contact lists of the display device, different display regions of the display device may be designated to the mobile terminals so that the regions may display the digital contents sent from the mobile terminals to the display device. In addition, the regions may be further selected to display the digital contents in more detail.