Patent ID: 7236149
Filing Date: 2007-06-26
Classification: G09G

Abstract:
1. A pixel circuit for driving an electro-optic element with a luminance changing according to a flowing current, comprising: a data line through which a data signal in accordance with luminance information is supplied; a first control line; first, second, and third nodes; first and second reference potentials; a reference current supplying means for supplying a predetermined reference current; a drive transistor forming a current supply line between a first terminal and a second terminal connected to said first node and controlling a current flowing through said current supply line in accordance with the potential of the control terminal connected to said second node; a first switch connected to said first node; a second switch connected between said first node and said second node; a third switch connected between said data line and said third node and controlled in conduction by said first control line; a fourth switch connected between said first node and said reference current supplying means; and a coupling capacitor connected between said second node and said third node, wherein the current supply line of said drive transistor, said first node, said first switch, and said electro-optic element are connected in series between said first reference potential and second reference potential.