Patent Document ID: 8354981
Application ID: 12164542
Patent Status: 1

Claim One:
1. An active matrix type display apparatus configured by disposing a pixel circuit for supplying a current to a display element disposed at a position where a signal line and a scanning line intersect the pixel circuit, comprising: a drive transistor having a first main conductive terminal connected to a constant voltage source, a second main conductive terminal for injecting the current to the display element, and a control terminal; and a capacitive element connected between the control terminal of the drive transistor and the first main conductive terminal, the pixel circuit being connected to the signal line during a selection period, and isolated from the signal line during a non-selection period, wherein the selection period includes a first period and a second period, and during the first period, the second main conductive terminal of the drive transistor and the display element are isolated, the control terminal and the second main conductive terminal of the drive transistor are connected to the signal line, and the signal line is supplied with a first current capable of conducting the drive transistor, with the first current not corresponding to a signal current corresponding to the current injected to the display element, during the second period, the second main conductive terminal of the drive transistor is disconnected from the signal line, and the signal line is supplied with a second current corresponding to a signal current for controlling a display image, in a direction reverse to the first current, and during the non-selection period, the second main conductive terminal of the drive transistor and the display element are connected, and a drive current according to the voltage between both terminals of the capacitive element is supplied from the drive transistor to the display element.