Patent ID: 8294737
Filing Date: 2012-10-23
Classification: G09G

Abstract:
1. A driving method for driving a display apparatus including N×M light emitting units laid out to form a two-dimensional matrix composed of N matrix columns oriented in a first direction and M matrix rows oriented in a second direction, M scan lines each stretched in said first direction, N data lines each stretched in said second direction, a driving circuit provided for each of said light emitting units to serve as a circuit having a signal writing transistor, a device driving transistor, a capacitor and a first switch circuit, and a light emitting device provided for each of said light emitting units to serve as a device to emit light at a luminance according to a driving current output by said device driving transistor to said light emitting device, wherein in each of said light emitting units a specific one of said source and drain areas of said signal writing transistor is connected to one of said data lines, the gate electrode of said signal writing transistor is connected to one of said scan lines, a specific one of said source and drain areas of said device driving transistor is connected to the other one of said source and drain areas of said signal writing transistor through a first node, a specific one of the terminals of said capacitor is connected to a power-supply line conveying a reference voltage determined in advance, the other one of said terminals of said capacitor is connected to the gate electrode of said device driving transistor through a second node, a specific one of said terminals of said first switch circuit is connected to said second node, and the other one of said terminals of said first switch circuit is connected to the other one of said source and drain areas of said device driving transistor, said driving method comprising: a second-node electric-potential correction process carried out in order to change an electric potential appearing on said second node by applying a voltage having a magnitude determined in advance to said first node for a time period determined in advance with said first switch circuit already put in a turned-on state in order to put said second node in a state of being electrically connected to said other one of said source and drain areas of said device driving transistor.