Liquid crystal display device and fabricating method thereof
First Claim
1. A method of fabricating a liquid crystal display device, comprising:
- providing first and second substrates;
a first mask process of forming a gate line and a gate electrode connected to the gate line on the first substrate;
a second mask process forming a gate insulating film on the gate line and the gate electrode and a semiconductor layer, then defining a pixel hole that passes through the semiconductor layer in a pixel area, and forming a pixel electrode on the gate insulating film within the pixel hole; and
a third mask process including forming a source/drain metal pattern including a data line crossing the gate line to define the pixel area, a source electrode and a drain electrode on the first substrate, and exposing an active layer of the semiconductor layer to define a channel between the source electrode arid the drain electrode,wherein the first mask process further includes forming a data link and a lower pad electrode to be connected to the data line on the first substrate; and
the second mask process further includes forming first and second contact holes to expose the lower pad electrode and the data link and forming an upper pad electrode connected to the lower pad electrode and a contact electrode interposed between the data link and the data line within the corresponding contact hole, the contact electrode having a first one surface contacted to the data line and a second surface contacted to the data link.
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Accused Products
Abstract
A liquid crystal display device and a fabricating method thereof for simplifying a process are disclosed. 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; and a thin film transistor including a gate electrode, a source electrode, a drain electrode, and a semiconductor layer, 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.
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Citations
23 Claims
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1. A method of fabricating a liquid crystal display device, comprising:
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providing first and second substrates; a first mask process of forming a gate line and a gate electrode connected to the gate line on the first substrate; a second mask process forming a gate insulating film on the gate line and the gate electrode and a semiconductor layer, then defining a pixel hole that passes through the semiconductor layer in a pixel area, and forming a pixel electrode on the gate insulating film within the pixel hole; and a third mask process including forming a source/drain metal pattern including a data line crossing the gate line to define the pixel area, a source electrode and a drain electrode on the first substrate, and exposing an active layer of the semiconductor layer to define a channel between the source electrode arid the drain electrode, wherein the first mask process further includes forming a data link and a lower pad electrode to be connected to the data line on the first substrate; and the second mask process further includes forming first and second contact holes to expose the lower pad electrode and the data link and forming an upper pad electrode connected to the lower pad electrode and a contact electrode interposed between the data link and the data line within the corresponding contact hole, the contact electrode having a first one surface contacted to the data line and a second surface contacted to the data link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification