Patent ID: 7986380
Filing Date: 2011-07-26
Classification: G02F

Abstract:
1. A method for fabricating a liquid crystal display of horizontal electric field applying type, which includes: preparing a thin film transistor array substrate, wherein the thin film transistor array substrate includes a thin film transistor formed on a crossing of a gate line and a data line, a pixel electrode connected to the thin film transistor, a common electrode producing horizontal electric field along with the pixel electrode, a common line connected to the common electrode, a gate pad formed with at least one conductive layer of the gate line, a data pad formed with at least one conductive layer of the data line, and a common pad formed with at least one conductive layer of the common line; preparing a color filter array substrate to be opposite to the thin film transistor array substrate; combining the thin film array substrate and the color filter array substrate; and directly connecting a conductive film to the gate pad, the data pad and the common pad, wherein the step of preparing a thin film transistor array substrate includes: forming a first metal layer on a substrate; forming a first conductive pattern group having the gate line, a gate electrode of the thin film transistor, the common line parallel to the gate line, the common electrode, the gate pad and the common pad, by patterning the first metal layer; forming a gate insulating film on the substrate having the first conductive pattern group thereon; forming a semiconductor layer and a second metal layer on the gate insulating film; forming a semiconductor pattern group including an active layer having a channel of the thin film transistor and an ohmic contact layer between source and drain electrodes of the thin film transistor and the active layer, and a second conductive pattern group including the data line, a source electrode of the thin film transistor connected to the data line, a drain electrode of the thin film transistor being opposite to the source electrode, a pixel electrode connected to the drain electrode and paralleled to the common electrode and the data pad, by patterning semiconductor layer and the second metal layer; and forming a passivation film on the gate insulation film having the second conductive pattern group and the semiconductor pattern group formed thereon.