Patent ID: 8603843

Claim:
A method for manufacturing an array substrate of a fringe-field switch (FFS) type thin film transistor liquid crystal display (TFT-LCD) comprising the steps of: step 1 : forming a first transparent conductive film, a first metal film and an impurity-doped semiconductor film on a transparent substrate sequentially, and then patterning the stack of the first transparent conductive film, the first metal film and the impurity-doped semiconductor film so as to faun patterns including source electrodes, drain electrodes, data lines and pixel electrodes; step 2 : forming a semiconductor film, and patterning the semiconductor film so as to form a pattern of the impurity-doped semiconductor layer and a pattern of the semiconductor layer including TFT channels; step 3 : depositing an insulating film and a second metal film, and patterning the insulating film and the second metal film so as to form patterns including connection holes of the data lines in a PAD region, gate lines, gate electrodes and common electrode lines; and step 4 : forming a second transparent conductive film, and patterning the second transparent conductive film so as to form patterns including the common electrode.