| 摘要 |
There is presented a liquid crystal display device having, on a transparent insulating substrate, an underneath light-shielding film, a thin film transistor (TFT) in which, over an interlayer film on said underneath light-shielding film, an active layer made of polysilicon, a gate insulating film and a gate electrode connected with the gate line are successively formed, a data line that feeds the data signals into said TFT, and a black matrix formed over said data line to cut off the incident light, with said active layer of the TFT being formed in the region where said gate line and data line intersect each other, wherein the underneath light-shielding film and the data line are formed to have substantially equal widths, at least, in said active-layer formation area.
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