Patent ID: 7768012
Filing Date: 2010-08-03
Classification: G02F,H01L

Abstract:
1. A pixel array structure of a liquid crystal display, comprising: at least a patterned semiconductor layer on an active device area of a substrate, two ends of the patterned semiconductor layer respectively having a doped area to be a source and a drain of a thin film transistor; a first gate dielectric layer on the patterned semiconductor layer and the substrate; a data line on an external side of the active device area; at least a first electrode on a first gate dielectric with an capacitor area of the substrate underneath; a second gate dielectric layer on the first gate dielectric layer, the data line and the first electrode; at least a gate on the second gate dielectric layer with the central of the patterned semiconductor layer underneath; at least a second electrode on the second gate dielectric layer with the first electrode underneath, wherein the first electrode, the second gate dielectric layer and the second electrode constitute a first storage capacitor; a dielectric layer on the second gate dielectric layer, the gate, and the second electrode; a first, a second, a third and a fourth openings in the dielectric layer, the second gate dielectric layer, and the first dielectric layer respectively exposing the data line, the source, the drain, and the first electrode; a pixel electrode on the first dielectric layer on a pixel area, wherein the second electrode, the dielectric layer and the pixel electrode constitute a second storage capacitor; a first conductive line on the dielectric layer and in the first opening and the second opening to connect the data line and the source; and a second conductive line on the dielectric layer and the in the third opening and the fourth opening to connect the drain and the first electrode.