Patent ID: 7242146
Filing Date: 2007-07-10
Classification: G09G

Abstract:
1. A driving apparatus for driving a plurality of display devices of a panel, comprising: a controllable current source; and a plurality of current storage and duplicating apparatuses, wherein each of the current and duplicating apparatuses is coupled to the controllable current source and a display device to receive a first current from the controllable current source, and to output a second current which is equal or proportional to the first current to drive the display device, wherein each of the current storage and duplicating apparatuses comprises: a first switch; a second switch; a first transistor: a second transistor; and a capacitor; wherein a terminal of the first switch is coupled to the controllable current source, another terminal of the first switch is coupled to a gate of the first transistor, a gate and a drain of the second transistor, and the capacitor, wherein a terminal of the second switch is coupled to the display device, and another terminal of the second switch is coupled to a drain of the first transistor.