A liquid crystal display device includes an upper electrode and a lower electrode interposing an insulation layer therebetween, wherein an electric field opening part for passing an electric field is formed in the upper electrode and liquid crystal molecules are driven by applying a voltage between the lower electrode and the upper electrode. The liquid crystal display device can enhance the display quality. A plurality of slits are arranged in the pixel electrode as the upper electrode for the pixel electrode to pass through as the common electrode of the lower electrode. In the nearby area of the window-shaped opening part at the lower part of the pixel electrode belonging to removed area of the common electrode, the slits are configurated to be the part for avoiding the contact hole toprovide the electric potential to the pixel electrode. In the nearby area of the window-shaped opening part, the slits are configurated to make the arc shape at one end of the two ends of the length direction ad the inner side of the window-shaped opening part. Furthermore, the window-shaped opening part is preferably arranged in the more inner side of the cirumferential end than the pixel electrode of the upper electrode.