| CPC G06F 3/011 (2013.01) [B66F 9/0755 (2013.01); G02B 27/017 (2013.01)] | 12 Claims |

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1. A display device worn on a head of a person, the display device comprising:
a display having transparency and being capable of displaying image data;
a target position acquisition unit configured to acquire target position information, the target position information being position information of a conveyance destination of a cargo conveyed by an industrial vehicle;
a position information acquisition unit configured to acquire vehicle position information, the vehicle position information being position information of the industrial vehicle or the person boarding the industrial vehicle; and
a control unit configured to display the image data, the image data including
a target placement range of the cargo as viewed from the person based on information of a positional relationship between the person boarding the industrial vehicle and the industrial vehicle, the vehicle position information, and the target position information, and
a predicted placement range of the cargo when the cargo is unloaded from the industrial vehicle as viewed from the person based on the information of the positional relationship, information of a position at which the industrial vehicle holds the cargo, and information of a size of the cargo,
the image data being displayed such that the target placement range included in the image data is superimposed on the target placement range in a real world viewable through the display.
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