Liquid crystal display device and manufacturing method thereof
AssigneeLG Display Co., Ltd.
InventorsKyung Ha LEE, Sang Hun Han
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Abstract
An LCD device and a manufacturing method thereof having improved transmittance and contrast ratio are disclosed. According to the LCD device and the manufacturing method thereof, a first common electrode which includes first and second horizontal electrode bars and a plurality of first vertical common electrode bars is disposed on a layer different from a second common electrode which includes a third horizontal common electrode bar and a plurality of second vertical common electrode bars. A pixel electrode which includes a horizontal pixel electrode bar and a plurality of vertical pixel electrode bars is disposed on the same layer as the second common electrode. The second common electrode is connected to the first common electrode.
Claims12
A liquid crystal display device comprising:
- a gate line disposed along a first direction;
- a data line crossing the gate line along a second direction;
- a thin film transistor disposed on the gate line and connected to the gate line and the data line;
- a first common electrode disposed on the same layer as the gate line and including first and second horizontal electrode bars and a plurality of first vertical common electrode bars;
- a second common electrode disposed on a layer different from the first common electrode and including a third horizontal common electrode bar and a plurality of second vertical common electrode bars;
- and
- a pixel electrode disposed on the same layer as the second common electrode and including a horizontal pixel electrode bar and a plurality of vertical pixel electrode bars,
- wherein the second common electrode is connected to the first common electrode and disposed to overlap the first common electrode.
A method of manufacturing a liquid crystal display device, the method comprising:
- forming a gate line and a first common electrode, which includes first and second horizontal common electrode bars and a plurality of first vertical common electrode bars, on a substrate;
- forming an gate insulation film on the substrate including the gate line;
- forming a semiconductor layer on the gate insulation film opposite to the gate line;
- forming a data line and source/drain electrodes on the substrate including the semiconductor layer;
- forming a passivation film, which includes a contact hole exposing the second horizontal common electrode bar, on the substrate including the data line;
- and
- forming a pixel electrode, which includes a horizontal pixel electrode bar and a plurality of vertical pixel electrode bars, and a second common electrode which includes a third horizontal common electrode bar and a plurality of second vertical common electrode bars, on the passivation film,
- wherein the third horizontal common electrode bar is connected to the second horizontal common electrode bar through the contact hole.
Dependencies are inferred from the claim text.