1. A liquid-crystal display, comprising: a first substrate including a plurality of sub-pixels; a first electrode layer formed on the first substrate, and the first electrode layer corresponding to one of the sub-pixels includes a first main trunk, a second main trunk crossed the first main trunk, and a plurality of striped branches, wherein the striped branches are connected with the first and second main trunks, an angle is formed between one of the striped branches and the first main trunk in the one of the sub-pixels, and the striped branches are alternately arranged with a pitch in the one of the sub-pixels; a second substrate opposing the first substrate; a second electrode layer formed on the second substrate; and a liquid-crystal layer disposed between the first and second electrode layers; wherein the pitch in one of the sub-pixels is different from the pitch in another one of the sub-pixels, or the angle in one of the sub-pixels is different from the angle in another one of the sub-pixels.