BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a display apparatus, a display system, and a display method for displaying information for supporting work.

2. Description of the Related Art

In the production of products in factories (plants), inspections, and repairs of factory equipment, work may be performed while looking at work documents such as procedure manuals and drawings, but sometimes it is difficult to arrange a device such as a display for displaying the work documents near the work target. As a display apparatus that can be used in such cases, a see-through type head-mounted display apparatus (hereinafter, also referred to as HMD) that is attached to the operator's head and displays an image of the virtual space superimposed on the real space and smart glasses are attracting attention. If a see-through type HMD or the like is used, the operator does not need to hold the display apparatus at hand or go to see the display apparatus in a distance, and the work efficiency can be improved.

The display control in the HMD can be made easier to use by changing and configuring the display screen according to the state of the HMD and the operator, or display contents. For example, in a HMD described in JP 2019-101330 A, an image obtained by capturing an image of a virtual space with a virtual camera is generated according to the angle of the line of sight measured by the HMD, and is displayed together with an image that does not change according to the angle.

SUMMARY OF THE INVENTION

In the invention described in JP 2019-101330 A, for example, an image of a virtual space is displayed on a non-transparent HMD, and an image that gives the operator (HMD wearer) the feeling of entering the virtual space is generated. On the other hand, in HMDs that support on-site work such as factories, it is necessary to work while looking at the actual work target, tools, and the surroundings of the site in the real space, so the technology described in JP 2019-101330 A cannot be said to be suitable as a display apparatus for work on site.

The invention has been made in view of such a background, and an object of the invention is to provide a display apparatus, a display system, and a display method which are suitable for an operator working in a real space and capable of displaying information related to the work.

In order to solve the above-mentioned problems, a display apparatus according to the invention includes a detector that detects an orientation of a main unit, a display, and an image display processing unit that displays a first image in a predetermined first display region on a screen of the display, and displays a second image related to the first image in a second display region on the screen of the display. The image display processing unit determines the second display region on the screen of the display according to the orientation of the main body.

According to the invention, it is possible to provide a display apparatus, a display system, and a display method suitable for an operator working in a real space and capable of displaying information related to the work. Objects, configurations, and effects besides the above description will be apparent through the explanation on the following embodiments.

