Operation display system and operation display method

An operation display system, comprising:

• an operation display device comprising a display unit configured to display an operation window and to be browsed by a plurality of persons;
• an operating unit configured to receive an operation to the operation window displayed on the display unit;
• and a display control unit configured to change the operation window displayed on the display unit, in accordance with the operation received by using the operating unit;
• an air operation detecting unit configured to detect an air operation which is an operation performed to the operation window displayed on the display unit by one user in air apart from the display unit;
• a window creating unit configured to create a virtual operation window in which a content of the operation window is changed in accordance with the air operation detected by the air operation detecting unit;
• and
• an AR display unit configured to show the one user an augmented reality space in which an image of the virtual operation window is synthesized with a real space,
• wherein the display control unit does not change the operation window displayed on the display unit, in accordance with the air operation.