Patent ID: 8368681
Filing Date: 2013-02-05
Classification: G09G

Abstract:
1. An image display apparatus comprising: a display unit in which pixel circuits are arranged in a matrix form; a signal line driving circuit configured to output a signal line driving signal to a signal line provided in the display unit; and a scanning line driving circuit configured to output at least a driving signal for power supply and a write signal to a scanning line provided in the display unit, wherein the pixel circuit includes at least: a light-emitting device; a driving transistor, a drain thereof being configured to receive the driving signal for power supply to drive the light-emitting device by a driving current in accordance with a gate-source voltage; a holding capacitor configured to hold the gate-source voltage; and a write transistor configured to connect a gate of the driving transistor to the signal line by the write signal to set a terminal voltage of the holding capacitor to a voltage of the signal line, and wherein: the light-emitting device is configured to alternately repeat a period of emission and a period of non-emission during which light emission by the light-emitting device is stopped by output signals of the signal line driving circuit and the scanning line driving circuit, the pixel circuit, in the period of non-emission and after an inter-terminal voltage of the holding capacitor is set to a voltage equal to or higher than a threshold voltage of the driving transistor, the driving transistor is configured to supply the inter-terminal voltage of the holding capacitor in a plurality of periods sandwiching a pause therebetween to set the inter-terminal voltage of the holding capacitor to the threshold voltage of the driving transistor and then, the write transistor is configured to the terminal voltage of the holding capacitor to set a gradation of the light-emitting device in a subsequent period of emission, and the scanning line driving circuit is configured to set the scanning line, to which the driving signal for power supply is output, to a floating state in an entire period of the pauses or a partial period thereof.