An image display device, the image display program, and an image display method

Capable image display device to ensure the visibility of the user, an image display program, and an image display method. The image display apparatus includes a transmission type display, an image generator, and an image display unit. Transmissive display is disposed in front of the eyes of the user. Image generating unit generates a display image non-display area and the image where no image is displayed is divided into a display region displayed. The image display unit displays the display image on the transmissive display.