Display control method, display apparatus

A display apparatus comprising:

• a display device;
• a first interface configured to be connected to an electronic apparatus;
• a second interface configured to be connected to another display apparatus;
• a switch device connected to the second interface;
• and
• a processor connected to the first interface and the switch device, and configured to:
• obtain an image signal from the electronic apparatus through the first interface, the image signal including at least a first image signal and a second image signal;
• in response to the display apparatus being in a first display mode, control the first image signal to be output and displayed on the display device, and transmit the second image signal to the switch device;
• and
• in response to the display apparatus being in a second display mode, transmit the second image signal to the switch device;
• wherein the switch device is configured to:
• in response to the display apparatus being in the first display mode, transmit the second image signal to the second interface to be output and displayed on the another display apparatus;
• and
• in response to the display apparatus being in the second display mode, transmit the second image signal back to the processor;
• and
• wherein the processor is further configured to, in response to the display apparatus being in the second display mode:
• obtain the second image signal output by the switch device;
• and
• control the first image signal and the second image signal to be output and displayed in two different display areas of the display device, respectively.