Patent ID: 7324101

Claim:
A method of driving an electronic circuit that has a plurality of first power source lines, a plurality of second power source lines and a plurality of unit circuits each of which includes: a first transistor that has a first terminal, a second terminal, and a first control terminal, the first terminal being coupled to one first power source line of the plurality of first power source lines; a second transistor that has a third terminal and a fourth terminal, the third terminal being coupled to the first control terminal, the fourth terminal being coupled to the second terminal; a third transistor that has a fifth terminal and a sixth terminal, the fifth terminal being coupled to the first terminal; and a capacitive element that has a seventh terminal and an eighth terminal, the seventh terminal being coupled to the first control terminal and the third terminal and the eighth terminal being coupled to one second power source line of the plurality of second power source lines, the method comprising: supplying an electric charge to the capacitive element, a quantity of the electric charge corresponding to a data current flowing through the third transistor, and supplying a driving current to an electronic element, the driving current flowing between the one first power source line and the electronic element through the first transistor, and the driving current having a level corresponding to the quantity of the electric charge, the one first power source line being electrically disconnected from a driving voltage during at least a part of a first period in which the supplying of the electric charge to the capacitive element is performed, the driving voltage being applied to the first terminal of the first transistor through the one first power source line during at least a part of a second period in which the supplying of the driving current to the electronic element is performed, and the one second power source line being held at a predetermined voltage during the first period and the second period.