Patent ID: 7755710
Filing Date: 2010-07-13
Classification: G02F

Abstract:
1. A pixel structure for being disposed on a substrate, the pixel structure comprising: a thin film transistor, disposed on the substrate and comprising a gate, a source, a first drain, a second drain and a third drain, wherein a first thin film transistor is formed by the gate, the source and the first drain , a second thin film transistor is formed by the gate, the source and the second drain , a sub-thin film transistor is formed by the gate, the second drain and the third drain, and when the sub-thin film transistor and the second thin film transistor are turned on, a conducting current of the sub-thin film transistor is smaller than a conducting current of the second thin film transistor, and the conducting currents form a specific ratio; a first pixel electrode, electrically connected to the first drain of the first thin film transistor; a second pixel electrode, the second drain extends to a portion between the second pixel electrode and the substrate to form a capacitor-coupling electrode, wherein the third drain of the sub-thin film transistor is electrically connected to the second pixel electrode; a scan line, disposed on the substrate and electrically connected to the gate; and a data line, electrically connected to the source.