A gaming machine includes an upper display panel of an electrical display able to change the contents of display. The panel display has a transparent acryl board as a protective cover, an LCD as an electrical display, and a cold-cathode tube as a backlight. The display contents include a pay table and...http://www.google.fr/patents/US20040150162?utm_source=gb-gplus-shareBrevet US20040150162 - Gaming machine