Display device, terminal device, display system, display method, and image alteration method

A terminal device comprising:

• a terminal-side image processing circuit generating a configuration altering image used to alter a configuration of a first image displayed by at least one display device, the first image having a portion including at least one second image;
• a terminal-side display device displaying the configuration altering image;
• a terminal-side processor generating image configuration alteration request information related to a configuration of the first image in response to configuration alteration request operation in a condition in which the configuration altering image is displayed;
• and
• a terminal-side communication unit transmitting the image configuration alteration request information toward the display device,
• the second image displays a plurality of different selection images, each of the selection images corresponding to one of a plurality of different configurations that when selected alter the configuration of the first image,
• wherein
• the terminal-side communication unit receives, from the display device, priority information that includes a reception number corresponding to a latest configuration of the first image, completion notification information corresponding to the priority denoting that all image information corresponding to the priority has been received, and image configuration information related to configuration of the first image,
• if the priority included in the priority information and the priority included in the completion notification information match each other, the terminal-side image processing circuit alters the configuration altering image based on the image configuration information, and
• if the priority included in the priority information and the priority included in the completion notification information fail to match each other, the terminal-side image processing circuit keeps the configuration altering image.

A display method of an image, comprising:

• providing a display device including a display-side display device and a display-side communication unit;
• receiving from at least one terminal device by the display-side communication image configuration alteration request information related to a configuration of a first image and image information of at least one second image, the first image having a portion including the at least one second image;
• generating the first image based on the image configuration alteration request information and the image information;
• displaying the first image by the display-side display device;
• and
• generating with a display-side processor, based on the image configuration alteration request information, transmission start request information of the image information in absence of transmission of the image information,
• the second image displays a plurality of different selection images, each of the selection images corresponding to one of a plurality of different configurations that when selected alter the configuration of the first image,
• the display-side communication unit transmits the transmission start request information toward the terminal device as a transmission source of the image information,
• the display-side processor generates priority information that includes a reception number corresponding to a latest configuration of the first image in response to reception of the image configuration alteration request information, and generates completion notification information corresponding to the priority upon completion of reception of the image information corresponding to the priority, and
• the display-side communication unit transmits the priority information including the reception number toward the terminal device as the transmission source of the image configuration alteration request information, and transmits the completion notification information to the terminal device as the transmission source of the image configuration alteration request information and the terminal device as the transmission source of the image information.