Patent ID: 8102346
Filing Date: 2012-01-24
Classification: G09G

Abstract:
1. An electro-optical device, comprising: a plurality of data lines and a plurality of scanning lines that are formed to intersect each other in a display region on a substrate; and a plurality of pixel circuits that control driving of a plurality of pixel circuits correspondingly provided at intersections of the plurality of data lines and the plurality of scanning lines, each of the pixel circuits including: a driving electrode that drives a corresponding display element, a driving transistor element that controls drive of the corresponding display element through the driving electrode, the driving transistor element having an input terminal that is electrically connected to a corresponding data line and to which an image signal is input through the data line, an output terminal that is electrically connected to the driving electrode and outputs the image signal to the driving electrode, and a gate electrode that is electrically connected to a corresponding scanning line, a storage capacitor that holds the electrode potential of the driving electrode set according to the potential of the image signal, the storage capacitor having a first capacitor electrode that is electrically connected to a fixed potential line to which a fixed potential is supplied, the storage capacitor having a second capacitor electrode that is electrically connected to a node in a connection path electrically connecting the driving electrode and the output terminal together, and a capacitance unit that is electrically connected between the node and a correction signal line to which a correction signal is supplied from a correction signal supply circuit, the capacitance unit compensating for a first change in potential of the node in accordance with the correction signal when the driving transistor element is switched from a selection state to a non-selection state; a sampling circuit that has a sampling switch for sampling the image signal and supplying the sampled image signal to the data line, and a data line driving circuit that switches the sampling switch from the non-selection state to the selection state such that the image signal is supplied to the data line by the sampling switch the correction signal supply circuit changes the potential of the correction signal from the first potential to the second potential ahead of a second time at which the sampling switch is to be switched from the selection state to the non-selection state, and the capacitance unit compensates for a second change in the potential of the node when the sampling switch is switched from the selection state to the non-selection state; wherein the correction signal line includes a plurality of auxiliary correction signal lines, the correction signal includes a plurality of auxiliary correction signals that are supplied to the plurality of auxiliary correction signal lines from the correction signal supply circuit, the capacitance unit includes a plurality of auxiliary capacitance units that are electrically connected to the node, and the plurality of auxiliary capacitance units share compensation of at least the first change from among the first change and the second change in accordance with the plurality of auxiliary correction signal lines.