Display system, display device, controller, method of controlling display device, and program

A controller comprising:

• a first communication interface that communicates with a first display device;
• operation keys that receive an operation;
• a central processing unit (CPU) programmed to select an object to be set from among the first display device or a plurality of second display devices, and displays one setting screen selected from among a plurality of setting screens constituting a hierarchical structure on the selected display device;
• and
• a storage that stores pieces of identification information regarding the first display device and the plurality of second display devices, and information indicating a relative positional relationship between the first display device and the plurality of second display devices,
• wherein the CPU is programmed to specify a display device, which is selected as an object to be set and which is present in a specific direction received by the operation keys on the basis of a position of a display device currently displaying the setting screen, with reference to the information indicating the positional relationship when receiving an operation of designating the specific direction by the operation keys, and transmits a switching instruction for switching a display device displaying the setting screen to the specified display device and the identification information regarding the specified display device to the first display device.

A display system comprising:

• a first display device;
• a second display device;
• and
• a controller,
• wherein the controller includes
• a first communication interface that communicates with the first display device, and
• operation keys that receive an operation,
• wherein the first display device includes
• a second communication interface that communicates with the controller,
• a first display that displays one setting screen selected from among a plurality of setting screens constituting a hierarchical structure when the first display device is selected as an object to be set by the controller,
• wherein the second display device includes
• a third communication interface that communicates with the first display device, and
• a second display that displays one setting screen selected from among the plurality of setting screens constituting the hierarchical structure when the second display device is selected as the object to be set by the controller,
• wherein the controller generates first setting information regarding setting of the first display device on the basis of an operation received by the operation keys during the display of the setting screen by the first display device, the first communication interface transmits the generated first setting information to the first display device, the controller generates second setting information regarding setting of the second display device on the basis of an operation received by the operation keys during the display of the setting screen by the second display device, and the first communication interface transmits the generated second setting information to the first display device, and
• wherein the second display device receives information indicating a hierarchy of the setting screen being currently displayed by the first display device when the first display device receives a switching instruction for switching the object to be set to the second display device from the controller during the display of the setting screen.

A method of controlling a controller, a first display device and a second display device, the controller including a first communication interface and operation keys, the first display device including a second communication interface and a first display, and the second display device including a third communication interface and a second display, the method comprising:

• communicating with the first display device via the first communication interface;
• receiving, by the operation keys, an operation;
• communicating with the controller and the second display device via the second communication interface;
• displaying, by the first display, one setting screen selected from among a plurality of setting screens constituting a hierarchical structure when the first display device is selected as an object to be set by the controller;
• communicating with the first display device via the third communication interface;
• displaying, by the second display, one setting screen selected from among the plurality of setting screens constituting the hierarchical structure when the second display device is selected as the object to be set by the controller;
• generating, by the controller, first setting information regarding setting of the first display device on the basis of an operation received by the operation keys during the display of the setting screen by the first display device;
• transmitting, by the first communication interface, the generated first setting information to the first display device;
• generating, by the controller, second setting information regarding setting of the second display device on the basis of an operation received by the operation keys during the display of the setting screen by the second display device;
• transmitting, by the first communication interface, the generated second setting information to the first display device;
• and
• transmitting, by the first display device, information indicating a hierarchy of the setting screen being currently displayed to the second display device when a switching instruction for switching the object to be set to the second display device is received from the controller during the display of the setting screen.