Patent ID: 8248332
Filing Date: 2012-08-21
Classification: G09G

Abstract:
1. An active matrix display apparatus comprising: two-dimensionally arranged pixel circuits, each of which includes a display element; and a plurality of signal lines and a plurality of scanning lines connected to the pixel circuits, each of the pixel circuits including a drive transistor and a capacitor, with one terminal of the capacitor being connected to a control terminal of the drive transistor, and a second terminal of the capacitor being connected to a first main conductive terminal of the drive transistor and a lighting power source, wherein in a writing operation period, a current flowing to the signal line is conducted into the drive transistor, and in a lighting operation period, a current conducting in the drive transistor is injected into the display element, at a time when the current flowing to the signal line is conducted into the drive transistor in the writing operation period, a potential of the lighting power source is lowered to depress the current conducting in the drive transistor and is kept for a period until the potential of the lighting power source is restored after the writing operation period is terminated, and during a period in which the potential of the lighting power source is lowered, the current conducting in the drive transistor partially recovers from the depression in accordance with the amount of the current flowing in the signal line, and wherein in a writing transition period, the lighting power source is lowered in voltage before the end of the writing operation period of a first row of pixels and is raised to a higher voltage after the start of the writing operation period of a next row of pixels.