Patent ID: 6927087

Claim:
A method of fabricating an active matrix substrate for a liquid crystal display, comprising: providing a transparent substrate; forming a plurality of gate lines on the transparent substrate, parallel to a first direction and having a plurality of protruding portions covering a plurality of active device regions; forming a gate insulating layer on the gate lines and the transparent substrate; forming a semiconductor layer on the gate insulating layer; forming a n-doped layer on the semiconductor layer; forming a metal layer on the n-doped layer; patterning the semiconductor layer, the n-doped layer and the metal layer to transfer the metal layer to a plurality of data lines perpendicular to the first direction; forming a low k dielectric layer on the data lines and the transparent substrate; forming a plurality of first openings in the low k dielectric layer corresponding to the active device regions; forming a transparent conducting layer on the low k dielectric layer; patterning the low k dielectric layer to form a plurality of pixel electrodes and a plurality of first conducting lines with source pattern; etching the data lines and the n-doped layer in the first openings, wherein the data lines and the n-doped layer have the same local pattern as the pixel electrodes and the first conducting lines in the first openings; and forming a passivating layer on the first openings.