Electronic circuit, method of driving the same, electro-optical device, and electronic apparatus

Abstract

At a writing time, a first transistor 412 is turned on so that a data signal Xj is supplied to one end of a capacitor 420 . At this time, since a second transistor 414 is turned off, driving current does not flow to an organic light emitting diode (OLED) device 430 . A power supply voltage Vdd is supplied to the other end of a capacitor through a power supply line L. However, since the driving current does not flow at the writing time, the power supply voltage Vdd is not reduced by the wiring line resistance of the power supply line L. On the other hand, at an emission time, the first transistor 412 is turned off and the second transistor 414 is turned on. Therefore, the driving current is supplied to the OLED device 430.

1 . An electro-optical device comprising:
 a plurality of scan lines;   a plurality of data lines;   a plurality of pixel circuits provided to correspond to the intersections between the plurality of scan lines and the plurality of data lines;   a plurality of power supply lines that intersect the plurality of data lines; and   a plurality of control lines that intersect the plurality of data lines,   wherein each of the plurality of pixel circuits comprises:   an electro-optical device;   a driving transistor for controlling the current level of a driving current supplied to the electro-optical device;   a capacitor whose one end is connected to the first gate of the driving transistor and the other end of which is connected to one power supply line of the plurality of power supply lines;   a first transistor having a second gate and provided between one data line of the plurality of data lines and the first gate so that the second gate is connected to one scan line of the plurality of scan lines and that the first transistor is turned on when a scan signal supplied through the scan line is activated and is turned off when the scan signal is deactivated; and   a second transistor having a third gate and serially connected to the electro-optical device so that the third gate is connected to one control line of the plurality of control lines and that the second transistor is turned on when a control signal supplied through the control line is activated and is turned off when the control signal is deactivated,   wherein the control signal is deactivated in at least one of the time at which the scan signal is activated.   
     
     
         2 . The electro-optical device as claimed in  claim 1 , wherein the control signal is deactivated at the point of time when the scan signal is transited to be deactivated. 
     
     
         3 . The electro-optical device as claimed in  claim 1 , wherein the time at which the control signal is deactivated is larger than the time at which the scan signal is activated. 
     
     
         4 . The electronic apparatus having the electro-optical device as claimed in  claim 1 .