Patent ID: 7511708

Claim:
A display device, comprising: source lines for feeding voltages Vda representing display data; first capacitors having first terminals whose voltages switch between at least three values regardless of voltages of other elements and second terminals connected to gates of driver transistors; electric potential lines connected to the first terminals of the first capacitors; electro-optical elements located near intersections of the source lines and the electric potential lines to form a matrix; the driver transistors, having a threshold voltage Vth, connected at sources and drains thereof to the electro-optical elements and power supply lines; the driver transistors and first switching transistors connected in series between the power supply lines and the electro-optical elements; second switching transistors connected between the gates and first current input/output terminals which are either the sources or the drains of the driver transistors; and third switching transistors connected between the source lines and second current input/output terminals which are either the drains or the sources of the driver transistors.