Patent ID: 8796688

Claim:
A pixel structure disposed on a substrate and driven by a scan line and a data line, the pixel structure comprising: a first patterned metal layer, disposed on the substrate, the first patterned metal layer having a common line and a gate; a first insulation layer, covering the first patterned metal layer; a semiconductor pattern, located on the first insulation layer above the gate; a second patterned metal layer, disposed on the first insulation layer, the second patterned metal layer having a source and a drain, the source and the drain being electrically connected to the semiconductor pattern; a second insulation layer, covering the second patterned metal layer, the second insulation layer having a contact opening exposing the drain; and an electrode layer, disposed on the second insulation layer, the electrode layer having a pixel electrode and a common electrode, the pixel electrode being connected to the drain through the contact opening, wherein the common line, the first insulation layer, and the pixel electrode together constitute a first storage capacitor, the common line, the drain, and the common electrode together constitute a sandwich structure, the common line, the first insulation layer, and the drain together constitute a second storage capacitor, the drain, the second insulation layer, and the common electrode together constitute a third storage capacitor, and a portion of the drain is extended above the common line and overlapped with the first insulation layer above the common line.