Patent ID: 8203510
Filing Date: 2012-06-19
Classification: G09G

Abstract:
1. A display apparatus, comprising: a pixel array section; and a driving section; the pixel array section including a plurality of scanning lines disposed along the direction of a row, a plurality of signal lines disposed along the direction of a column, a plurality of pixels disposed in rows and columns at places at which the scanning lines and the signal lines intersect with each other, and a plurality of feed lines disposed in parallel to the scanning lines; the driving section including a scanner for successively supplying a control signal to the scanning lines with a phase difference of a horizontal period, a selector for supplying an image signal having a signal potential, which changes over between a reference potential and a signal potential within each horizontal period, to the signal lines, and a power supply for supplying a power supply voltage, which changes over between a high potential and a low potential within each horizontal period, commonly to the feed lines; each of the pixels including a sampling transistor connected at one of a pair of current terminals thereof to an associated one of the signal lines and at a control terminal thereof to an associated one of the scanning lines, a driving transistor connected at one of a pair of current terminals thereof, which serves as a drain side, to an associated one of the feed lines and at a control terminal thereof, which serves as a gate, to the other one of the current terminals of the sampling transistor, a light emitting element connected to that one of the current terminals of the driving transistor which serves as a source side, and a storage capacitor connected between the source and the gate of the driving transistor; the sampling transistor being turned on, when the associated feed line has the low potential and the associated signal line has the reference potential, in response to the control signal to carry out a preparation operation of setting the gate of the driving transistor to the reference potential and setting the source of the driving transistor to the low potential; the sampling transistor carrying out a correction operation of writing a threshold voltage of the driving transistor into the storage capacitor connected between the gate and the source of the driving transistor within a period after the potential of the associated feed line changes over from the low potential to the high potential after the preparation operation is carried out until the sampling transistor is turned off in response to the control signal; the sampling transistor being turned on in response to the control signal when the associated feed line has the high potential and the associated signal line has the signal potential to write the signal potential into the storage capacitor; the driving transistor supplying driving current corresponding to the signal potential written in the storage capacitor to the light emitting element to carry out a light emitting operation.