Patent ID: 7859605

Claim:
A liquid crystal display device, comprising: first and second substrates; a gate line on the first substrate; a gate insulating film on the first substrate; a data line crossing the gate line to define a pixel area; a pixel hole in the pixel area; a pixel electrode formed of a transparent conductive layer on the gate insulating film in the pixel hole in the pixel area; a thin film transistor including a gate electrode, a source electrode, a drain electrode, and a semiconductor layer; a pad connected to at least one of the gate line and the data line, and including a lower pad electrode on the substrate and an upper pad electrode in a first contact hole that passes through the gate insulating film to expose the lower pad electrode and connected to the lower pad electrode; a data link extending from the lower pad electrode and overlapping with the data line, wherein the data link and the lower pad electrode are formed on a same layer; a contact electrode in a second contact hole that passes through the gate insulating film to expose the data link to connect the data link to the data line, the contact electrode having a first surface contacted with the data line and a second surface contacted with the data link, wherein the semiconductor layer overlaps with a source/drain metal pattern including the data line, the source electrode, and the drain electrode; wherein the drain electrode protrudes from the semiconductor layer toward an upper portion of the pixel electrode, and the drain electrode connects to the pixel electrode; and wherein the semiconductor layer is removed from where it overlaps the transparent conductive layer.