Liquid crystal display device and fabricating method thereof
AssigneeLG. Philips LCD Co., Ltd.
InventorsCheol Woo Park, Min Jic Lee
Life of this patent
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Abstract
A liquid crystal display device, and its fabrication method, having reduced picture quality deterioration and shorts. A thin film transistor is provided at intersections of gate and data lines. A pixel electrode connects to the thin film transistor. A storage electrode overlaps part of a gate line and extends along data lines. That storage electrode is overlapped by part of the pixel electrode. Channels are defined between the storage electrode and the data lines. A constant gap between the pixel electrodes and the data lines prevent a deterioration of picture quality and shorts between adjacent pixel electrodes and between the storage electrode and the data lines.
Claims18
A liquid crystal display device, comprising:
- a thin film transistor provided at an intersection between a data line and a gate line;
- a pixel electrode connected to the thin film transistor to drive a liquid crystal cell;
- a storage electrode extending under a portion of the pixel electrode and extending in a spaced apart relationship with the data line, wherein a portion of the storage electrode extends along the gate line;
- and
- a channel between the storage electrode and the data line;
- wherein the storage electrode is electrically connected to the pixel electrode.
A method of fabricating a liquid crystal display device, comprising the steps of:
- forming a gate line on a substrate;
- forming a gate insulating film on the substrate and over the gate line;
- forming a data line and a storage electrode on the gate insulating film, wherein the storage electrode has a first portion that is spaced apart from and extends along the data line, and a second portion that extends along the gate line;
- forming a protective film on the gate insulating film, on the storage electrode, on the gate line, and on the data line;
- defining a channel between the storage electrode and the data line, wherein the channel extends through the protective film and through the gate insulating film;
- and
- forming a pixel electrode on the protective film;
- wherein the pixel electrode is connected to the storage electrode via a storage contact hole through the protective film.
Dependencies are inferred from the claim text.