Patent ID: 7098062

Claim:
A method of fabricating a pixel structure of a thin film transistor (TFT) liquid crystal (LCD), comprising: sequentially forming a transparent conductive layer and a first metal layer over a substrate; performing a first masking and pholithography process for patterning the first metal layer and the transparent conductive layer to define a gate pattern and a pixel electrode pattern; sequentially forming a gate isolating layer and a semiconductor layer over the substrate for covering the gate pattern and the pixel electrode pattern; performing a second masking process for removing the first metal layer of the pixel electrode pattern, wherein the gate isolating layer and the semiconductor layer retained over the gate pattern; forming a second metal layer over the substrate; performing a third masking process for patterning the second metal layer and forming a source pattern and a drain pattern over the retained semiconductor layer; forming a passivation layer over the substrate; forming a photoresist layer over the passivation layer; performing a back side exposure process and a patterning process by using the gate pattern, the source pattern and the drain pattern as a mask for patterning the photoresist layer; performing an etching step for etching the passivation layer by using the patterned the photoresist layer as a mask to expose the transparent conductive layer of the pixel electrode pattern; and removing the photoresist layer.