Patent ID: 8379162

Claim:
A method of manufacturing a thin film transistor liquid crystal display (TFT-LCD) array substrate, comprising: step 1 of forming a gate metal film on a substrate and patterning the gate metal film to form a gate line and a gate electrode; step 2 of sequentially depositing a gate insulating film, a semiconductor film and a doped semiconductor film on the substrate after step 1 and patterning the stacked semiconductor film and the doped semiconductor film to form an active layer; step 3 of sequentially depositing a transparent conductive film and a source/drain metal film on the substrate after step 2, and patterning the transparent conductive film and the source/drain metal film to form a pixel electrode, a data line, a source electrode, a drain electrode and a TFT channel region with a first half-tone mask or a first gray-tone mask, wherein the pixel electrode is directly connected with the drain electrode; and step 4 of depositing a passivation layer and a light-blocking film on the substrate after step 3, and patterning the passivation layer and the light-blocking film to form a light-blocking layer, a gate pad via hole and a data pad via hole by a patterning process with a second half-tone mask or a second gray-tone mask, wherein the light-blocking layer is positioned over the TFT channel region.