Display device for self-propelled industrial machine

A display apparatus mounted on a dump truck which has a frame;

• a left front wheel, a right front wheel, a left rear wheel, and a right rear wheel provided on the frame;
• and a vessel provided on the frame, the display apparatus comprising:
• a plurality of periphery imaging cameras which are provided on the dump truck, the periphery imaging cameras including a backward camera having a field of view of an underneath area of the dump truck, a left side camera having a field of view including a region between the left front wheel and the left rear wheel of the underneath area of the dump track, and a right side camera having a field of view including a region between the right front wheel and the right rear wheel of the underneath area of the dump track;
• a processor programmed to process image information obtained from the periphery imaging cameras to create a single display image including a symbol image of the dump truck and the processed image information, the symbol image including the left front wheel, the left rear wheel, the right front wheel, and the right rear wheel;
• and
• a display provided in a cab of the dump truck and which is configured to display the single display image created by the processor,
• wherein the processor is further programmed to:
• convert view points of a rear side image obtained by the backward camera, a left side image obtained by the left side camera, and a right side image obtained by the right side camera to create a rear bird's eye view image, a left side bird's eye view image, and a right side bird's eye view image,
• obtain an image region corresponding to the underneath area from the rear bird's eye view image to create a back side underneath image,
• process a region of the symbol image corresponding to the back side underneath image to be a back side transparent region and superpose the back side transparent region of the symbol image on the back side underneath image,
• create a composite image with the symbol image with the superposed back side underneath image placed at a center thereof and the rear bird's eye view image, the left side bird's eye view image, and the right side bird's eye view image arranged therearound, and
• create the single display image from the composite image.