Dual display with pointer controlled by a remote device

A display device, comprising:

• a primary display;
• a communication unit configured to communicate with an other display device wherein a side of the other display device is located proximate to a side of the display device;
• and
• a controller configured to:
• cause a pointer corresponding to a remote control device to be displayed on the primary display or a secondary display of the other display device, wherein a position of the displayed pointer is based on a movement of the remote control device relative to the display device and a placement state of the display device relative to the other display device;
• and
• cause the display device or the other display device to execute a control command in response to a control command input received via the remote control device, wherein the control command is executed by the display device or the other display device based on an operation mode of the display device, wherein:
• a first content is displayed on the primary display;
• a second content is displayed on the secondary display;
• and
• the controller is further configured to cause at least one reference line to be displayed on the secondary display indicating an available aspect ratio for setting a new aspect ratio of the first content in response to a drag input of the pointer from the primary display to the secondary display.