Patent ID: 8189162
Filing Date: 2012-05-29
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: first and second substrates; a gate line on the first substrate; a common line on the first substrate; a common electrode on the first substrate, wherein the common electrode is connected to the common line; a gate insulating film on the gate line, the common line, and the common electrode; a data line on the gate insulating film, wherein the data line crosses the gate line; a thin film transistor having a gate electrode connected to the gate line, a source electrode connected to the data line, a drain electrode, and a semiconductor layer having a channel between the source electrode and the drain electrode; a data pad having a transparent conductive layer in a contact hole passing through the gate insulating film, wherein the data line is extended to overlap with a portion of the contact hole and connected to the data pad by directly contacting on a portion of the data pad, and wherein the data pad forms an interface with the gate insulating film enclosing the contact hole; and a pixel electrode formed directly on the gate insulating film connected to the drain electrode, wherein one side of pixel electrode is aligned with one side of the semiconductor layer, and wherein the drain electrode directly overlaps and directly contacts on a portion of the pixel electrode where the one side of the semiconductor layer and the one side of the pixel electrode are aligned.