Abstract: Liquid crystal display panels are mounted to a beam combining prism such that each display panel can flex in the place of the display panel as a result of thermal stresses. Mirrors having a cover glass plate substantially equivalent to the cover glass on the display panels are used to establish the image planes. A three-point clip mount for each display panel is then positioned based on the respective image plane. The mirrors are then replaced with the actual display panels and the optical system is then finely adjusted. After the fine adjustments, the mounting clips are bonded to the display panels.