Projection type display device used with another projection type display device for projecting overlapping images, display system, and display

A display system comprising:

• a first projection type display device including
• a specification unit that specifies, on the basis of data acquired from another projection type display device or data acquired from the projection type display device, an event occurring in a device of an acquisition source of the data, and
• a first display unit that projects and displays an image on a first screen and that displays a first configuration image in a predetermined region of the first screen when the event is specified by the specification unit, the first configuration image forms an image corresponding to the specified event;
• and
• a second projection type display device as another projection type display device, including
• a second display unit that projects and displays an image on a second screen and that displays the second configuration image so as to overlap the predetermined region, the second configuration image forms the image corresponding to the specified event with the first configuration image.

A display method comprising:

• making a first projection type display device, which includes a display unit that projects and displays an image on a first screen, specify, on the basis of data acquired from a second projection type display device that projects and displays an image on a second screen or the first projection type display device, an event occurring in a device of an acquisition source of the data;
• making the first projection type display device control the display unit to display a first configuration image in a predetermined region of the first screen when the event is specified in the specifying, the first configuration image and a second configuration image form an image corresponding to the specified event;
• and
• making the first projection type display device output a control signal, which causes the second projection type display device to display the second configuration image such that the second configuration image overlaps the predetermined region when outer edges of the first and second screens match with each other, when the event is specified in the specifying.