US 2006/0139552 A1 · Liquid crystal display device and fabricating method thereof

Abstract

A liquid crystal display device and a fabricating method having a simplified process are disclosed. The liquid crystal display device compromises, among other features, first and second substrates, a gate line crossing a data line with a gate insulating film therebetween to define a pixel area. A common line is provided on the substrate substantially parallel to the gate line, and a common electrode is extended from the common line into the pixel area. A pixel electrode is extended from a drain electrode into the pixel area to form a horizontal electric field with the common electrode. The data line, a source electrode, a drain electrode and the pixel electrode are formed of a first conductive layer group having at least double conductive layers, and are formed in an area to be sealed by a sealant upon joining the first and second substrates.

Claims36

Dependent claims

A liquid crystal display device, comprising:

first and second substrates;
a gate line on the first substrate;
a data line crossing the gate line with a gate insulating film therebetween to define a pixel area;
a thin film transistor including a gate electrode connected to the gate line, a source electrode connected to the data line, a drain electrode opposite the source electrode and a semiconductor pattern defining a channel between the source electrode and the drain electrode;
a common line on the first substrate substantially parallel to the gate line;
a common electrode extended from the common line into the pixel area;
and
a pixel electrode extended from the drain electrode into the pixel area to form a horizontal electric field with the common electrode,
wherein the data line, the source electrode, the drain electrode and the pixel electrode are formed of a first conductive layer group having at least double conductive layers, and are formed in an area to be sealed by a sealant upon joining the first and second substrates.

6 more elements

A method of fabricating a liquid crystal display device, comprising:

a first mask process of forming a first mask pattern group including a gate line, a gate electrode connected to the gate line, a common line substantially parallel to the gate line, and a common electrode connected to the common line on a first substrate;
a second mask process of forming a gate insulating film on the first mask pattern group and forming a semiconductor pattern on the gate insulating film;
and
a third mask process of forming a third mask pattern group including a data line crossing the gate line and the common line, a source electrode connected to the data line, a drain electrode opposite the source electrode and a pixel electrode connected to the drain electrode from a first conductive layer group having at least double conductive layers on the gate insulating film, wherein the third mask pattern group is formed in an area to be sealed by a sealant upon joining the first substrate and a second substrate.

1 more element

Dependencies are inferred from the claim text.

Liquid crystal display device and fabricating method thereof

Life of this patent

Liquid crystal display device and fabricating method thereof

Life of this patent

Abstract

Claims36