A power supply for sequentially energizing segments of an EL display device to produce an animated graphic using an EPROM to store the excitation information for the respective segments to be illuminated. The EPROM may be replaced by another EPROM programmed with a different sequence for the same or...http://www.google.co.uk/patents/US5359341?utm_source=gb-gplus-sharePatent US5359341 - Power supply for sequentially energizing segments of an electroluminescent panel to produce animated displays
