A novel method for detection of manufacture defects is disclosed. The three dimensional image display device according to the present invention includes a display panel having a plurality of pixels, a backlight capable of partially illuminating the display panel, and a drive circuit for driving the display panel and the backlight. Further, the revocation list 40 includes an inventory of unauthorized software that the prevention system 10 prevents from being installed andor used on the gaming machine 20. A crimping device is used with the telsplice stick, where the telsplice stick is inserted into the crimping device. Prior to the singulating step the components can be tested and burned-in while they remain on the substrate. The p-doped layer is provided, on its main surface facing away from the active region, with a reflective contact metallization comprising a radioparent contact layer and a reflective layer.