Display terminal, display control system and display control method

A display device, comprising:

• a display;
• a color image camera configured to acquire a color image of a predetermined range;
• a distance image camera configured to acquire a distance image of the predetermined range;
• and
• a display control unit configured to display a virtual object and an operation point on the display,
• the operation point is a point that accepts an operation instruction for the virtual object, wherein the display control unit is configured to:
• generate a three-dimensional map of a structural object existing within the predetermined range using the color image and the distance image,
• specify a region of the virtual object behind the structural object as a rear region, based on the three-dimensional map and placement position information for displaying the virtual object at a predetermined placement position within the predetermined range, and
• wherein a display control that the display control unit displays the virtual object and the operation point on the display includes a first display control for displaying a first object region which is a region of the virtual object other than the rear region and the operation point which is in the first object region, and a second display control for displaying a second object region which is a region of the virtual object including the rear region, the operation point which is in the second object region and an additional object.