Patent ID: 8289239
Filing Date: 2012-10-16
Classification: G09G

Abstract:
1. A driving method for driving a display apparatus, said 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 extending in said first direction; N data lines each extending in said second direction; a driving circuit provided for each of said light emitting units and 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 for emitting 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, first current electrode of said signal writing transistor is connected to one of said data lines, a gate electrode of said signal writing transistor is connected to one of said scan lines, a first current electrode of said device driving transistor is connected to a second current electrode of said signal writing transistor through a first node, a first terminal of said capacitor is connected to a power-supply line for conveying a reference voltage determined in advance, a second terminal of said capacitor is connected to a gate electrode of said device driving transistor through a second node, a first terminal of said first switch circuit is connected to said second node, a second terminal of said first switch circuit is connected to a second current electrode of said device driving transistor, and said driving circuit further has a second switch circuit connected between said second node and said one of said data lines, said method comprising: a second-node electric-potential initialization process of applying a predetermined initialization voltage appearing on said data line to said second node by way of said second switch circuit put in a turned-on state and, then, putting said second switch circuit in a turned-off state in order to set an electric potential appearing on said second node at a reference electric potential determined in advance.