In an array substrate, the array substrate includes an insulation member in each pixel area and a color filter layer that surrounds each insulation member. The color filter layer includes color filters having two or more colors that are different from each other, and a color filter is formed in each pixel area. An insulation member is arranged in each pixel area and all the insulation members include the same material. The insulation members are partially removed in each pixel area to form contact holes having the same size.