Patent ID: 7786497

Claim:
A pixel structure of a liquid crystal display, the pixel structure comprising: a thin film transistor on an active area of a substrate, the thin film transistor comprises: an active stack composed of a metal light-shielding layer, a dielectric layer and a silicon island, wherein the silicon island has source and drain on two ends thereof; a gate dielectric layer on the active stack; and at least a gate on the gate dielectric layer over the active stack; a storage capacitor, having a first electrode, a capacitive dielectric layer and a second electrode from bottom to top, on a capacitive area of the substrate, wherein the first electrode and the metal light-shielding layer are discontinuous and separated from each other and are made of a first metal layer, the capacitive dielectric layer and the dielectric layer are discontinuous and separated from each other and are made of a first dielectric layer, the second electrode and the silicon island are made of a same single silicon layer and are discontinuous and separated from each other, and the second electrode is a heavily doped silicon layer and connects the drain; and a pixel electrode connecting the second electrode.