Liquid crystal display device for preventing light leakage and method of fabricating the same
View Patent ↗An LCD device and a method of fabricating the same are to prevent a light leakage phenomenon of the edge of a pixel and thereby to improve a picture quality. The liquid crystal display device includes a plurality of gate lines and data lines defining a plurality of pixel regions, a switching device formed at a crossing region between each gate line and data line, a pixel electrode formed in the pixel region, a gate dummy line at one side of the pixel electrode along the data line and partially overlapping the pixel electrode, and a data dummy line at one side of the pixel electrode above the gate dummy line and partially overlapping with the pixel electrode.
1. A liquid crystal display (LCD) device comprising:
a plurality of gate lines and data lines defining a plurality of pixel regions;
a switching device formed at a crossing region between each gate line and data line;
a pixel electrode formed in the pixel region;
a gate dummy line at one side of the pixel electrode along the data line and partially overlapping the pixel electrode; and
a data dummy line at one side of the pixel electrode above the gate dummy line and partially overlapping with the pixel electrode.
2. The LCD device of claim 1 , wherein the switching device is a thin film transistor.
3. The LCD device of claim 2 , wherein the thin film transistor includes:
a gate electrode formed on a substrate and connected to a gate line;
a first insulating layer formed on the entire substrate where the gate electrode is formed;
a semiconductor layer formed on the first insulating layer;
a source and drain electrode formed on the semiconductor layer and respectively connected to a data line and a pixel electrode; and
a second insulating layer formed on the entire substrate where the source and drain electrode are formed.
4. The LCD device of claim 3 , wherein the data dummy line is electrically connected to the pixel electrode through a first contact hole in the second insulating layer.
5. The LCD device of claim 1 , wherein the gate dummy line is formed of the same material as the gate line.
6. The LCD device of claim 1 , wherein the data dummy line is formed of the same material as the data line.
7. The LCD device of claim 1 further comprising a storage electrode arranged along an adjacent gate line of an adjacent pixel thus forming a storage capacitor with the gate line.
8. The LCD device of claim 7 , wherein the data dummy line is connected to the storage electrode.
9. The LCD device of claim 1 further comprising a pair of electrodes arranged in the pixel region and forming a storage capacitor.