Patent ID: 8884854
Filing Date: 2014-11-11
Classification: G09G

Abstract:
1. A display comprising: a pixel array part configured to include pixels arranged in a matrix, each of the pixels including an electro-optical element, a write transistor for writing an input signal voltage supplied through a signal line, a holding capacitor for holding the input signal voltage written by the write transistor, and a drive transistor for driving the electro-optical element based on the input signal voltage held in the holding capacitor, the drive transistor being connected to a power supply line; and a drive circuit configured to selectively scan the pixels in the pixel array part on a row-by-row basis and perform a threshold correction operation against variation in a threshold voltage of at least one drive transistor for each selected row within a cycle of one horizontal scanning period, such that the threshold correction operation for a correction-target pixel row is performed in a given horizontal scanning period, wherein the drive circuit is further configured to perform a plurality of threshold correction preparation operations corresponding to the threshold correction operation while the write transistor is in a conductive state and a reference voltage being lower than the input signal voltage is supplied to the signal line, and before the threshold correction operation for the correction-target pixel row, over a plurality of previous horizontal scanning periods occurring before the given horizontal scanning period; and wherein the power supply line is configured to supply a low potential during the plurality of threshold correction preparation operations and a high potential during the threshold correction operation.