A pixel structure includes a substrate, a floating light-shielding pattern disposed on the substrate, an insulating layer disposed on the substrate and the light-shielding pattern, a data line disposed over and corresponding to the light-shielding pattern, a dielectric layer disposed on the data line and the insulating layer, and a third layer conductive pattern disposed on the dielectric layer. The third layer conductive pattern includes a common line and a common pattern. The common pattern includes two common branches arranged in parallel, and there is a space between the two common branches and over the data line.