Patent ID: 8018564
Filing Date: 2011-09-13
Classification: G02F,H01L

Abstract:
1. An LCD device comprising: a substrate including a plurality of gate lines and a plurality of data lines crossing each other to define a plurality of pixel regions on the substrate; a thin film transistor (TFT) formed at crossing portions of the gate lines and the data lines, each TFT including a semiconductor layer electrically coupled to a corresponding data line and a drain electrode electrically coupled to a pixel electrode, wherein the data lines and the semiconductor layer comprise a composite line in regions on the substrate between adjacent pixel electrodes; a passivation layer overlying the gate lines, the data lines, and the TFT; a line opening exposing top surface and sidewalls of the data lines and sidewalls of the semiconductor layer between adjacent pixel electrodes through the passivation layer, and a data protection layer covering the composite line and overlying the data line with the passivation layer therebetween where the data line crosses over the gate line, the data protection layer formed on the same layer as the pixel electrode where the data line crosses over the gate line, wherein a line width of the data line is substantially the same as a line width of the semiconductor layer in the composite line.