Liquid crystal display device and method for fabricating the same
AssigneeLG Display Co., Ltd.
InventorHee Jung YANG
Life of this patent
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Abstract
A liquid crystal display (LCD) device having an array substrate with a top gate type TFT includes a first transparent metal layer deposited to enhance the adhesion between a data metal layer and an insulating substrate before a data metal deposition, and a second transparent metal layer deposited to enhance the adhesion between a gate metal layer and an insulating substrate before a gate metal deposition. The LCD device having the array substrate with a top gate type TFT can be fabricated with a reduced number of masking or sputtering processes, thereby reducing the fabrication time of the LCD device and increasing the yield of the LCD device.
Claims6
1-10. (canceled)
A method for fabricating a liquid crystal display device, comprising:
- forming a first transparent metal layer on a substrate;
- forming a data metal layer on the first transparent metal layer;
- forming a preliminary photoresist pattern having a height difference on the data metal layer;
- etching the first transparent metal layer and the data metal layer using the preliminary photoresist pattern as a mask to form a data line, a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode;
- ashing the preliminary photoresist pattern to form a photoresist pattern exposing a portion of the data metal layer;
- etching the data metal layer using the photoresist pattern as a mask to form a pixel electrode connected to the first transparent metal layer;
- forming a semiconductor pattern covering the source electrode and the drain electrode;
- forming a gate insulating layer over the substrate;
- and
- forming a gate line crossing the data line, and a gate electrode connected to the gate line and disposed opposite to the semiconductor pattern.
Dependencies are inferred from the claim text.