This invention relates to a method for driving an electro-luminescence display device. The method includes the steps of selecting a scan line by applying a scan signal to any one of a plurality of scan lines; and switching between a constant voltage and a constant current to apply data to a plurality...http://www.google.com/patents/US6960889?utm_source=gb-gplus-sharePatent US6960889 - Method and apparatus for driving electro-luminescence display device
