Patent ID: 8514161
Filing Date: 2013-08-20
Classification: G09G

Abstract:
1. A current-driven display device comprising: a plurality of pixel circuits arranged at respective intersections of a plurality of scanning lines and a plurality of data lines; a scanning signal output circuit that selects a write-target pixel circuit using a corresponding scanning line; and a display signal output circuit that provides a potential according to display data to a corresponding data line, wherein each of the pixel circuits includes: an electro-optical element provided between a first power supply wiring line and a second power supply wiring line; a drive element provided in series with the electro-optical element and between the first power supply wiring line and the second power supply wiring line; a capacitor connected, at a first electrode thereof, to a control terminal of the drive element; a first switching element provided between a second electrode of the capacitor and a corresponding data line; a second switching element provided between the second electrode of the capacitor and a third power supply wiring line; a third switching element provided between the control terminal and one current input/output terminal of the drive element; and a fourth switching element directly connected, at one end thereof, to the control terminal of the drive element and directly connected, at the other end thereof, to the data line.