Image processing device

An image processing device for displaying, on a display, a virtual screen obtained by viewing, from above, an aggregate board in which multiple unit boards having a common component configuration are arranged, the image processing device comprising:

• a storage section configured to store positional information of all components to be mounted on the unit boards, and
• a control section configured to use one unit board at a predetermined position among the multiple unit boards as a reference unit board, generate a detailed image in which respective components are arranged on the unit board based on the positional information of all components to be mounted on the unit boards, for the reference unit board, generate a simplified image obtained by simplifying the unit board, for a non-reference unit board other than the reference unit board among the multiple unit boards, and display a simple virtual screen displaying the detailed image at a position of the reference unit board and the simplified image at a position of the non-reference unit board as the virtual screen.