Patent ID: 8563367

Claim:
A method of fabricating an array substrate for an in-plane switching (IPS)-mode liquid crystal display (LCD) device, the method comprising: sequentially forming a first metal layer and a second metal layer on a substrate; forming a photoresist pattern on the second metal layer, the photoresist pattern having a first line width; etching the first metal layer and the second metal layer exposed outside the photoresist pattern to form a first metal pattern and a second metal pattern of a double-layered structure having a second line width smaller than the first line width; removing the photoresist pattern; selectively etching the first metal pattern using the second metal pattern as a mask and a first etchant for selectively etching the first metal pattern to have a third line width smaller than the second line width to form a pixel electrode and a common electrode; and selectively etching and removing the second metal pattern using a second etchant for selectively etching the second metal pattern.