A method for manufacturing a liquid crystal display, including: preparing a substrate on which a switching element, laminating a conductive material layer and a conductive metal layer, forming a first photosensitive film pattern on the conductive metal layer, the first photosensitive film pattern comprising a first region having a first thickness and a second region having a second thickness greater than the first thickness, forming a conductive metal pattern by etching the conductive metal layer using the first photosensitive film pattern as a mask, forming a second photosensitive film pattern that exposes a part of the conductive metal pattern by removing the first region of the first photosensitive film pattern, forming a common electrode by etching the conductive material layer by using the conductive metal pattern as a mask and forming an auxiliary electrode by etching the exposed conductive metal pattern using the second photosensitive film pattern as a mask.