Patent ID: 7275988
Filing Date: 2007-10-02
Classification: G07F

Abstract:
1. A slot machine, comprising: a plurality of reels, each provided with a plurality of symbols including at least one special symbol having a contour; at least one payline, extending across the reels; at least one electro-optical panel, including a first transparent substrate and a second transparent substrate, each of which is formed with at least one opening having a shape substantially coincident with a contour of at least one special symbol, the electro-optical panel disposed in front of each of the reels such that the at least one opening is placed on the payline, said electro-optical panel further including an electro-optical substance, sandwiched between the first transparent substrate and the second transparent substrate at a part which is other than the opening; and a controller, which controls a state of the electro-optical substance in accordance with a predetermined rule to adjust a transparency of the electro-optical panel in order to vary viewability of symbols on the reels.