Patent ID: 8502945

Claim:
A method of forming an array substrate of a fringe field switching (FFS) mode liquid crystal display (LCD) panel, comprising: providing a substrate; forming a plurality of gate lines, a plurality of gate electrodes and a common electrode on the substrate by a first photolithographic process, the first photolithographic process comprising: forming a first conducting layer on the substrate, and forming a patterned photoresist on the first conducting layer; removing the first conducting layer unblocked by the patterned photoresist to form the gate lines and the gate electrodes on the substrate; forming a first transparent conducting layer covering the substrate and the patterned photoresist; striping the patterned photoresist as well as the first transparent conducting layer which covers the patterned photoresist to form the common electrode on the substrate; forming a gate insulating layer which covers the substrate, the gate lines, the gate electrodes and the common electrode; forming a semiconductor layer on the gate insulating layer by a second photolithographic process; forming a plurality of data lines, a plurality of source electrodes and a plurality of drain electrodes on the gate insulating layer and the semiconductor layer by a third photolithographic process; forming a passivation layer on the gate insulating layer, the data lines, the source electrodes and the drain electrodes by a fourth photolithographic process, wherein the passivation layer has a plurality of first contact holes, and each of the first contact holes at least partially exposing the drain electrodes; and forming a plurality of pixel electrodes on the passivation layer by a fifth photolithographic process, wherein each of the pixel electrodes is electrically connected to the corresponding drain electrode through the corresponding first contact hole.