Patent ID: 8199143
Filing Date: 2012-06-12
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 extending along the direction of a row, a plurality of signal lines extending along the direction of a column, and a plurality of pixels disposed in rows and columns at places at which the scanning lines and the signal lines intersect with each other; each of the pixels including a sampling transistor, a driving transistor, a storage capacitor and a light emitting element; the sampling transistor being connected at a control terminal thereof to an associated one of the scanning lines and at a pair of current terminals thereof to a first one of the signal lines and a control terminal of the driving transistor; the driving transistor being connected at a first one of a pair of current terminals thereof to the light emitting element and at a second one of the current terminals thereof to a power supply; the storage capacitor being connected to the control terminal of the driving transistor; the driving section including a write scanner and a signal selector; the write scanner supplying sequential control signals to the scanning lines for each horizontal period; the signal selector supplying image signals, wherein a signal potential and a reference potential change over for each horizontal period, to the signal lines; the sampling transistor being placed into an on state in response to a control signal supplied to an associated one of the scanning lines when an associated one of the signal lines has the reference potential to carry out a threshold voltage correction operation of canceling a dispersion of the threshold voltage of the driving transistor; the sampling transistor carrying out a signal writing operation of writing, within a writing period from a first timing at which the potential of the associated signal line changes over from the reference potential to the signal potential to a second timing at which the sampling transistor is placed into an off state in response to the control signal, the signal potential into the storage capacitor; the driving transistor supplying driving current in accordance with the signal potential written in the storage capacitor to the light emitting element so as to carry out a light emitting operation; the signal selector variably adjusting the first timing in response to the signal potential thereby to variably control the writing period from the first timing to the second timing in response to the signal potential.