Patent ID: 8431424

Claim:
A method for manufacturing a liquid crystal display (LCD) panel, comprising: providing a substrate defining a thin film transistor (TFT) region and a pixel region; forming a transparent conductive layer and a first metal layer on the substrate in that order; forming a gate line in the TFT region, and a pixel electrode in the pixel region by patterning the transparent conductive layer and the first metal layer via a first photo-etching process; forming an insulating layer and a semiconductor layer on the substrate in that order; removing the insulating layer and the semiconductor layer from the pixel region; removing the first metal layer from the pixel region; forming a second metal layer over the substrate; forming a source electrode and a drain electrode in the TFT region by patterning the second metal layer via a second photo-etching process; forming a protecting layer over the substrate; wherein the TFT region comprises a gate line region, and the first photo-etching process comprises: forming a first photo-resist layer on the first metal layer; forming a patterned first photo-resist layer on the first metal layer using one or more first photo-resist patterns via a first photolithography process, wherein a thickness of the patterned first photo-resist layer within the pixel region exceeds that of the patterned first photo-resist layer within the gate line region; removing the first metal layer and the transparent conductive layer not covered by the patterned first photo-resist layer via a first etching process; removing the patterned first photo-resist layer from the gate line region via a first ashing process, and preserving the patterned first photo-resist layer within the pixel region wherein the removal of the insulating layer and the semiconductor layer from the pixel region comprises of removing the patterned first photo-resist layer from the pixel region, and the insulating layer and the semiconductor layer formed thereon via a first lift-off process; and wherein the substrate further defines a touch pad region comprising a first region and second region, in which the method for manufacturing the LCD panel further comprises forming a touch pad structure.