Patent ID: 8766263
Filing Date: 2014-07-01
Classification: G02F

Abstract:
1. A liquid crystal display device including a TFT substrate, a counter substrate, and liquid crystal held between the TFT substrate and the counter substrate, wherein the TFT substrate has a gate electrode, a gate insulating film, and a semiconductor layer formed thereon in the cited order, the semiconductor layer having a drain electrode, a drain line, and a source electrode formed thereon except where a TFT channel region is formed; the gate insulating film has a rectangular pixel electrode of ITO formed thereon, the pixel electrode being overlappingly connected with the source electrode; the pixel electrode has a comb-teeth-shaped common electrode disposed thereon across an insulating film; the drain electrode on the semiconductor layer and the drain line on the semiconductor layer are electrically connected by a blocking conductive film formed of the same material as the pixel electrode; and the semiconductor layer under the drain electrode and the semiconductor layer under the drain line are physically connected by the blocking conductive film and are separated by the blocking conductive film as a barrier against holes; and the blocking conductive film which separates the semiconductor layer under the drain electrode and the semiconductor layer under the drain line is completely overlapped with the gate electrode in plan view.